Aug , The endoscope of claim , wherein the liquid carrying conduit includes a communications cable connected to the image sensor, or an optical fiber bundle configured to provide the proximal housing section enclosing an electronic control board to receive image data from the camera assembly wherein a
Feb , Finally, the completed wing will be cured in an autoclave under uniform pressure and temperature Pressurization of mandrels to apply pressure to the side walls and spars No effort has been made to take advantage of composite fiber directional strength and minimum weight considerations Hence
It is a general object of the present invention to provide a method of manufacturing plastic articles wherein novel procedure is utilized to maintain the fibreglass lower face of the male mold member it engages the plastic liquid in the lower mold and forces it up around the sides of the tank It to form the side wall coatings.
Apr , The invention relates to a finishing mortar for sound absorbing coating of inner walls, ceilings and the like in buildings or some other carrying material, but it may also be applied on underlying absorption material for sound such as mineral wool, polyester material, fibre board material and glass granulate.
Mar , This invention discloses a new technology related to cellulose fiber reinforced cement composite materials using the loaded cellulose fibers This invention discloses four aspects of the technology fiber treatment, formulation, method and final product This technology advantageously provides fiber cement
May , shows the activation of self decontaminating function on the polyacrylamide grafted fibre including bacteria, viruses, fungi, yeasts, spores and toxic chemicals such as carbamate pesticides by either oxidizing sulfahydral bonds in microorganisms or by releasing chlorine to penetrate cell walls.
Jun , However, this document does not describe autoclaved fiber reinforced products comprising ground waste from air cured fibercement materials wherein the Autoclaved fibercement products are used in a variety of applications, but most often as general purpose building boards such as wall and fagade
Jul , Conversely, the fiber content is typically only inasmuch as the product structure is basically comprised of the resin  As described above, RTM is a manufacturing method using a closed mold More specifically, the resin is injected into a space defined by mold walls, whereby the method is based
Jan , The composition is applicable to products formed for fire wall linings, fire partitions, screens, ceilings or linings, structural fire protection, fire door inserts, a glass additive in a form selected from a group consisting of glass frits, glass fibre, and mixtures thereof in an amount of from to by weight
Aug , Epoxy resin systems are generally cured in a mould where several prepreg layers containing the fibrous reinforcement such as carbon fibre, glass fibre, retardant properties and also maintain desired mechanical properties for applications in articles such as vehicle interiors, ceilings, partitions, walls etc.
Oct , The composition of claim or , which is a source of dietary fiber, protein, arabinose phenolics and nutraceuticals, and has health benefits when (iii) autoclaving the liquid suspension at approximately OC for minutes (iv) fermenting the suspension for at least twelve hours with a selected yeast
Oct , Channels and voids in the cellulose fiber lumens and cell walls can become filled with water when exposed to rain or condensation for extended periods of time and can adversely affect durability The presence of cellulose fibers can cause the board to have a high saturated mass, poor wet to dry
May , To increase its flexural strength, fibre cement products are normally cured in an autoclave The saturated steam pressure used is usually about KPa The pressure is held at this level for approximately hours, and the alkalinity of the board may be as high as a pH of These harsh conditions affect
Aug , One method of manufacturing the cementitious composite article includes first applying a sealer coating to a surface of a fiber cement substrate, Also, only certain types of polymer fibers are resistant to autoclave conditions US, Apr , , Jul , , Burgess Lab Inc C F, Wall board.
After the fibers are attached in the ply of fiber reinforced polymer matrix composite, the aligned fibers are forced through the composite material by applying a The newly formed reinforced prepreg composite films are then stacked on top of each other and pressurized and cured in an autoclave or press to produce an
Panels may be secured to the attachment members by any suitable means such as screws, clips, adhesives or edge engagement members is uninterrupted, except at the connectors and it is therefore possible to insert insulating material, for example a glass fibre quilt, over almost the entire area of the wall lining By the
The fiber composite laminate is disposed in contact with a male tool includes a first flange, a second flange and an intermediate web The male tool is curved in its After being draped onto the tool, the fiber composite hardens to form a finished beam, e.g via hardening in an autoclave The finished beam is then removed
Feb , A composite material according to claim or wherein at least part of the polymeric dilatant ii) is included within cell walls of the foam A fibre according to claim or wherein the first material i) is defined in any one of claims to and or the second material ii) is defined in any one of claims to
Apr , These bladders are inflated to support the internal structure of the composite stringer during the curing process in an oven or autoclave One d back with Airfoil radar antenna US, Dec , , Sep , , Karl Johann Reichl, Method of producing fiber reinforced panels of synthetic resin.
May , Original Assignee, The Board Of Trustees Of The University Of Illinios Cellulose in lignocellulosic biomass exists in the form of fiber, macrofibril, and microfibril which are surrounded by lignin and hemicellulose Plant cells are protected by a rigid cell wall composed of carbohydrate polymers A major
Sep , Some of the relevant patents regarding this type of cement board are Australian Patent No and U.S Pat No ,, As the cellulose fiber is stable in autoclave, most of this type of product cures in autoclave European cement composite products are subjected to hydraulic press so they have
Jul , A bone member fastener for closing a craniotomy includes a cap and a base interconnected by a narrow cylindrical collar The cap has an externally threaded stud that screws into an internally threaded bore of the collar, thereby allowing the cap and base to be brought into clamping engagement against
Apr , Gypsum fiber board panels have been used in the construction industry to form the interior and exterior walls of residential and or commercial structures However, a d back of such conventional panels is that they do not have sufficient flexural toughness to the extent that such panels may be comparable
Oct , The EPA Science Advisory Board ranks viruses in drinking water as one of the highest health risks Waterborne pathogenic While glass fiber filters tend to be weak, a number of chemical binders will improve their physical properties and modify their chemical characteristics Ceramic filters often have


Steel Grade Equivalent Table (EN, SAE/AISI, UNS, DIN, BS , sae 4140 dbin equivalent. Equivalent Grades ALLOY STEEL - 4.imimg, sae 4140 dbin equivalentFREE CUTTING STEEL.Internal Standard Equivalent Grades BS DIN IS EN SAE/AISI JIS EN15(AM) 216M36 - 40Mn15S12 ENI5(AM) 1137 - EN1A 220Mo7 9SMn28 11C10S25 EN1A 1213 SUM22 EN1APB 220Mo7Pb 9SMnPb36 - EN1APB Welcome to Benedict-Miller Aircraft Quality AISI 4130 sae 4130 dbinWelcome to Benedict-Miller Aircraft Quality AISI 4130 (E4130) Steel, AISI 4340 (E4340) Steel. Benedict-Miller stocks one of the largest inventories nationwide for 4130 (E4130) and 4340 (E4340) sheet, plate, and round bar. We will cut and finish to your specifications and offer you fast delivery worldwide, often shipping within a day or two!Steel Pipe Suppliers | Steel Tube Suppliers | Steel Pipe sae 4130 dbinSteel Pipe Federal Steel Supply has been the preferred steel provider of the global community since 1979.Federal Steel is proud to support the manufacturing industry, a cornerstone of a thriving American economy. We supply steel, carbon, metal, alloy and stainless steel products to a variety of manufacturers in the United States and worldwide.
Steel Grade Equivalent Table (EN, SAE/AISI, UNS, DIN, BS, UNI, JIS) The table below compares common grades of materials from various international specifications. Note that materials compared are the nearest available grade and may have slight variations in actual chemistry. sae 4130 dbin 4130: 25CrMo4 GS-25CrMo4: 708A30 CDS110: 25CrMo4 (KB) 30CrMo4: SCM sae 4130 dbinSpec Miata Community: Roll Cage Safety - Mild Steel vs sae 4130 dbinOct 08, 2008 · Seamless, or DOM (Drawn Over Mandrel) mild steel tubing (SAE 1010, 1020, 1025) or equivalent, or alloy steel tubing (SAE, 4130) shall be used for all roll cage structures. Proof of use of alloy steel is the responsibility of the entrant. Posted by Rye (Member # 3716) on : Chrome moly is stronger, but as stated is more brittle and subject to sae 4130 dbinSAE InternationalSAE International is the global leader in technical learning for the mobility industry. Whether you are an engineer or business professional looking to advance your career, or an educator in search of creative and effective ways to engage students in STEM programs, we have you covered.
AISI 4130 Chromoly Steel (UNS G41300) AISI 4130 steel (UNS G41300), also known as 4130 Chromoly steel, is a chrome-molybdenum series low alloy steel with high strength, toughness and hardenability, usually used in quenched and tempered condition.Related Steel Specifications - Resources - Impact Ireland sae 4130 dbinEngineering Steel Stockist. Steel No. (Werkstoff No.) Steel Name BS 970 1991 BS 970 1955 AISI/SAE; 1.4305Properties: Stainless Steel - Grade 316 (UNS S31600)The 316 family is a group of austenitic stainless steels with superior corrosion resistance to 304 stainless steels. They also have excellent toughness and can be used in the food, marine, chemical and architectural fields. Other applications include fasteners and screens for the mining industry.
Apr 19, 2004 · SAE 1010 or 1020 steels are NOT heat treated and neither are they listed in P numbers section. Reason is that 1010, 1020, 4130 and 4140, as well as many else, are SAE steels (SAE is the Society of Automotive Engineers) and the P numbers in ASME Code section IX includes the ASME steels, which are listed on ASME Code section II.Normalized SAE-AISI 4130 vs. Quenched And Tempered SAE sae 4130 dbinMay 30, 2020 · Both normalized SAE-AISI 4130 and quenched and tempered SAE-AISI 4130 are variants of the same material. They share alloy composition and many physical properties, but develop different mechanical properties as a result of different processing. For each property being compared, the top bar is normalized SAE-AISI 4130 and the bottom bar is sae 4130 dbinMojtaba KARAMI MOGHADAM | Master of Science | The laser surface transformation hardening (LSTH) of AISI 4130 steel by 1600 W high power diode laser (HPDL) and 700 W Nd:YAG lasers were investigated in this present study.
Zillow has 56,283 homes for sale in Michigan. View listing photos, review sales history, and use our detailed real estate filters to find the perfect place.ISO Certified Steel Bar Supplier of SBQ, AISI Steels sae 4130 dbinSummit Steel Corporation is a premier steel distributor of alloy and carbon steel bar stock, serving the metalworking industry since 1985. A reliable, reputable ISO 9001 Certified steel bar supplier of high quality, low cost steel bar for all standard AISI grades including regular and special bar quality (SBQ) steel in hot rolled and all cold finishes Summit Steel Corporation excels at sae 4130 dbinEncore Metals - 4130AISI/SAE 4130 (UNS G 41300) Mechanical Properties Normalized, Hardened & Tempered at 1150 min; Typical, API-6A Designation 75K, Classification K
SAE 1020 2 SAE' 4130 2 SAE 43402 La Belle 111, 30 Peerless 56 32 Vascojet 100R) 34 AISM Type 410 -AM 350 36 *liniken 16-25-6 37 17-7 I'll3 PH 15-7M 40 A-286 42 Invar 43 S-816 44 Electrolytic Nickel 4 1 ncne 147 Inconel W4 V4. WADD TR 60-438 TABLE OF E-4340 ROUND STEEL ROD | Aircraft SpruceE-4340 ROUND STEEL ROD E4340 rod has high fatigue strength and maintains its hardness and strength qualities even at high temperatures. Excellent for use in highly stressed parts. Meets AMS2032 and is furnished normalized and tempered coldDTO Supply, LLCpacking~gland hpt gate valve~aisi 4130/4140 60k 3 inch and 4 inch 20375065 wiper ring 6854-47e 20376356 o ring oc 0350 20377532 o ring oc 0233 20377545 o ring oc 0325 20377839 stem hpt 3.13-15m, 3.06-10m, 3.06-15m 17-4ph manual psl3 20379139 o ring oc 0218 20380402
Castrol Where to Buy Tool: Find out where to buy your engine oil for your bike, car or truck. Find out where to buy oil and lubricants for your industry here.BeatzaddictionID3 oTPE1 ÿþLECOD FT CSKTPE2 ÿþLECOD FT CSKTPOS beatzaddiction sae 4130 dbinTCON ÿþBluesTIT2 ÿþAHOETYER 2016APICÇÃimage/jpeg ÿØÿá ExifII* ÿì Ducky ÿá ohttp sae 4130 dbinASSRA Forum - OH NO It Happened! Please help!Most screw stock is SAE 12L14, so bottom line its steel with lead added to increase machinability. Most consider 12L14 a real PITA to TIG weld, the added lead causes porosity when welding. Welding will also cause hard spots in the barrel, especially if the barrel is made out of a medium carbon material such as SAE 4130
Steel, Sheet, Strip, and Plate 0.95Cr - 0.20Mo (0.28 - 0.33C) (SAE 4130) Spheroidized AMS6351L This specification covers an aircraft-quality, low-alloy steel in the form of sheet, strip, and plate. Revision History Related InfoAISI 4130SAE 41304130 4130saeaisi 4130 aisi 4130. sae 4130. ams 637 4130 sae 4130 dbinAISI 4130 Steel | 25CrMo4 | 1.7218 | 708A25 | SCM430 sae 4130 dbinWhat is 4130 Steel? AISI 4130 alloy steel is a medium carbon, low alloy steel in ASTM A29 standard. ASTM 4140 steel is also commonly referred to as a chromoly steel, or chrome moly steel, containing nominally 0.28-0.33% Carbon, 0.8-1.1% Chromium and 0.15-0.25% Molybdenum. It is similar to 4140 steel which has a higher carbon level
Sep 06, 2012 · AISI 4130 steel can be annealed at 843°C (1550°F) followed by air cooling at 482°C (900°F). Tempering of AISI 4130 steel can be performed at 399 to 566°C (750 to 1050°F), depending on the desired strength level. Hardening of AISI 4130 steel can be done with cold working or heat treatment.AD-A256 502 - DTICconstructed of SAE 4130 steel alloy tubing with the lunette fixed to one of the legs. With the weight of the modified MlAls and MIA2s approacbing 70 tons, the current tow bar system is experiencing a significanL number of failures due to insufficient strength. In an effort to resolve this problem, the U.S. Army Tank- sae 4130 dbinAço SAE 4130 Propriedades MecânicasO aço SAE 4130 é um aço cromo-molibdênio cuja composição química contém como diferencial o cromo e o molibdênio em sua liga. Esses elementos melhoram a resposta desse aço ao tratamento térmico e possibilitam um aumento de sua resistência mecânica .
Alloy Steel fasteners like, 4130 Fasteners, 4140 Fasteners, 4340 Fasteners, 8620 Fasteners, 8740 Fasteners, ASTM A193 Grade B7 Fasteners, ASTM A193 Grade B7M Fasteners, ASTM A193 Grade B16 Fasteners, ASTM A194 Grade 4 Fasteners, ASTM A194 Grade 7 Fasteners, ASTM A194 Grade 7M Fasteners, ASTM A194 Grade 16 Fasteners, ASTM A320 Grade L7 Fasteners, SAE J429 Grade 8 Fasteners.SAE SAE InternationalSAE International is the global leader in technical learning for the mobility industry. Whether you are an engineer or business professional looking to advance your career, or an educator in search of creative and effective ways to engage students in STEM programs, we have you covered.OnlineMetals sae 4130 dbin® | Buy Metal and Plastics at Online MetalsWith over 21 years selling metal online, we offer the best service, selection, and knowledge. Free MTRs, no cut fees, fast shipping!
AISI 4130 Pipe is a low alloy steel which contain molybdenum and chromium as strengthening agents. We can supply & stock 4130 Pipe material including AISI 4130 Pipes, 4130 Tubing, 4130 Flanges, 4130 Pipes Fittings, 4130 Elbow etc. The carbon content is nominally 0.30% and with this relatively low carbon content the alloy is excellent from the sae 4130 dbin4130 | ALLOY | In Stock | Castle Metals SiteAlloy 4130 in bar, plate & tube SPECIFICATIONS: GRADE ALLOY 4130, AISI 4130, UNS G41300 Castle Metals stocks a wide range of Alloy 4130 in bar distributed globally from our distribution centers in North America, as well as in the U.K, France, Singapore, and Shanghai. When customers call us for 4130, sometimes they also share how they struggle with price volatility.4130 Alloy Steel | 1.7218 | 25CrMo4 | P280GH | 2244 sae 4130 dbinForged of AISI 4130 Oil and Gas industry Steel material metal Forged AISI 4130 steel at 1150-1200 ºC. no forging when below 850 ºC . Heat Treatment of SAE/AISI 4130 Alloy Steel 4130 Steel Annealing Slowly heat to 8008500 ºC, keep enough time, ensure heat thoroughly. then cooling in furnace to 480 ºC, then cool in air.
AISI 4130: ASTM A-29, ASTM A-519, API 6A, & API 16C GENERAL SCOPE: 4130 is a low alloy steel that is commonly used in the oil patch, predominately in wellhead applications. It is a heat treatable alloy steel that contains nominally .30% Carbon, with Chromium and AISI 4130 - Equivalent MaterialsSAE 4130: JIS SM420 JIS SCM430: EN 25CrMo4 EN 1.7218: UNS G41300 UNS H41300: Equivalent Materials Terms and Conditions. Overall statistics about our Database. 5184 Equivalencies. 13 Standard Organizations. Material properties provided by Matmatch sae 4130 dbin sae 4130 dbin4130 Tubing - 4130 Seamless Alloy Steel Tubing - 4130 sae 4130 dbinAISI 4130 Tubing Falls Under The Grade AISI Or SAE 4130 And This Is Essentially A Steel Of Low Alloy That Contains Strengthening Agents Such As Molybdenum And Chromium. Grade SAE 4130 Is An Alloy That Is Very Versatile, It Has Pretty Good Strength And It Displays Very Good Resistance To Atmospheric Corrosion. Tubing That Is Made From 4130 Material Has Low Carbon Content And
Alloy 4130 in bar, plate & tube SPECIFICATIONS: GRADE ALLOY 4130, AISI 4130, UNS G41300 Castle Metals stocks a wide range of Alloy 4130 in bar distributed globally from our distribution centers in North America, as well as in the U.K, France, Singapore, and Shanghai. When customers call us for 4130, sometimes they also share how they struggle with price volatility.409m 410 430 stainless plates - Carbon low alloy Steel sae 4130 dbinAISI/SS 410 Plate is a martensitic stainless steel that contains 11.5% of chromium that offers plates good corrosion resistance and tensile strength properties. Grade 410 stainless steel is a general purpose stainless steel with corrosion resistance properties enhanced by


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Plasticizers > Phthalates > DBP, Di Butyl Phthalates
Dibutyl phthalate (DBP) is a low molecular weight, cost effective, efficient and popular phthalate plasticizer used in adhesives and sealants. Dibutyl phthalate (DBP) works like a speciality plasticizer when used in combination with other high molecular phthalates.
Dibutyl Phthalate (DBP) Hazardous Organic Liquid
Synonyms: DBP; Formula: C 16 H 22 O 4; Appearance. Dibutyl Phthalate is a colorless to faint-yellow, oily liquid with a slight, aromatic odor, and is soluble in many organic solvents, such as alcohol, ether, and benzene. It is regulated by the DOT and is considered an environmentally hazardous substance.
Dibutyl phthalate - DutCH2 - Chemical Supplier
Dibutyl phthalate Di butyl phthalate (DBP) is a commonly used plasticizer. It is produced by the reaction of n-butanol with phthalic anhydride. These precursor compounds are produced cleanly and cheaply.
Chemical Dbp Suppliers, Manufacturer, Distributor
Cas Number 84-74-2 Dibutyl phthalate / dbp products price chemical used as textile chemical and pvc plasticizer Promotions Chemical additive Dibutyl Phthalate Elasticizer / DBP plasticizer for industrial use 84-74-2
Epoxy Soybean Oil And Plasticizer What Is The Difference
DBP dibutyl phthalate and DOP dioctyl phthalate are phthalate ester plasticizers, widely used. The main differences between the three are: 1. Appearance, epoxy soybean oil: light yellow oily liquid; DBP: colorless transparent liquid; DOP: colorless oily liquid. 2. Chemical structure, epoxy soy oil is an epoxy compound, DBP and DOP are ...
Dibutyl Phthalate (DBP) - Chemceed - datasheet
Dibutyl Phthalate (DBP) by Chemceed is a dibutyl phthalate. Acts as a plasticizer. It is suitable for highly concentrated PVC compounds. Dibutyl Phthalate (DBP) is used in adhesives.
Dibutyl phthalate 99 % | 84-74-2 | Sigma-Aldrich
Dibutyl phthalate (DBP) is most commonly used as a plasticizer in a variety of household products. It has the ability to leach and evaporate into the environment while using or disposing of these products. Therefore, studies are being conducted to assess its toxic and apoptotic effects. S
Phthalates and Their Alternatives: Health
(DEHP), diisononyl phthalate (DINP), dibutyl phthalate (DBP), diisodecyl phthalate (DIDP), di-n-octyl phthal-ate (DnOP), and benzyl butyl phthalate (BBP or BzBP). Phthalates have been identified as reproductive and developmental toxicants, though their toxicity varies somewhat depending on the specific phthalate structure.
Dibutyl phthalate - Wikipedia
From Wikipedia, the free encyclopedia Dibutyl phthalate (DBP) is an organic compound which is commonly used as a plasticizer because of its low toxicity and wide liquid range. With the chemical formula C 6 H 4 (CO 2 C 4 H 9) 2, it is a colorless oil, although commercial samples are often yellow.
TOX-30: Dibutyl Phthalate (CASRN 84-74-2)
Dibutyl phthalate is a phthalate ester with extensive use in industry in such products as plastic (PVC) piping, various varnishes and lacquers, safety glass, nail polishes, paper coatings, dental materials, pharmaceuticals, and plastic food wrap.
best selling polystyrene plasticizer doa /dioctyl adipate
(PLASTICIZERS) Plasticizers - DOA. Plasticizers suitable for Food Contact. DOA, dioctyl adipate is a primary plasticizer resulting from the esterification of 2-Ethyl Hexanol with Adipic Acid, it is the most important in the adipate group, it offers a high efficiency, better flexibility properties at low temperatures and resistance to the loss of color by exposure to heat and ultraviolet light.
Plasticizer Degradation by Marine Bacterial Isolates: A
phthalate (DBP) and bis(2-ethyl hexyl) phthalate (DEHP), are now increasingly being replaced with more environmentally friendly alternatives, such as acetyl tributyl citrate (ATBC).
factory direct plasticizer tbc tributyl citrate in philippines
Acetyl Tributyl Citrate(ATBC), is colorless, odorless, oily liquid, is a non-toxic plasticizer which can be used as plasticizers in polyvinyl chloride, cellulose resins and plasticizers synthetic rubber. 8.3.3 KLJ Group 2017 Acetyl Tributyl Citrate (ATBC) Sales, Ex-factory Price, Revenue, Gross Margin Here We offers online ...
Dibutyl phthalate | C16H22O4 - PubChem
Dibutyl phthalate | C16H22O4 | CID 3026 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities ...
DBP: 3. Can DBP affect the environment? - GreenFacts
1. What are the properties of dibutyl phthalate (DBP)? 2. How is DBP used? 3. Can DBP affect the environment? 3.1 What happens to DBP released to the environment? 3.2 When is DBP released? 3.3 What levels of DBP are expected near the sources? 3.4 What are the effects of DBP on the environment? 3.5 What are the risks of DBP to the environment? 4.
Dibutyl Phthalate - The Chemical Company
Download – Dibutyl Phthalate Spec from TCC. Shipping Information. TCC’s Dibutyl phthalate is available for shipping throughout the continental United States with one (1) week lead time. Please call (401) 360-2800 for details. Dibutyl phthalate is a liquid packed in bulk (rail, tanktruck, Isotank), totes (IBC tanks), and drums.
DBP - Specification
Dibutyl Phthalate Plasticiser DBP This product is from a Valetime Integrated Source PRODUCT OF THE UKRAINE DETAILS CAS 84-74-2 (Chemical Abstract Registry Number) Structure EC-Number 201-557-4 Chemical Name Dibutyl Phthalate Synonyms Plasticiser DBP, Di-(n-butil-ether)-ortho-phthalic acid, 1,2-Benzenedicarboxylic acid, dibutyl ester, o-
dibutyl phthalate (DBP) - Encyclopedia - NAILS Magazine
Dibutyl phthalate (DBP) is a common nail polish ingredient used as a plasticizer (allowing it to be flexible on nails and not crack); also used in children’s toys, shower curtains, and food wraps; the U.S. has no laws prohibiting its use in nail polish.
Adhesion properties of eco-friendly PVAc emulsion adhesive
The four types of eco-friendly plasticizers used were dibutyl phthalate DBP-based product, dialkyl ester, acetyl tributyl citrate, and pentandiol-di-isobutyrate.


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|About this Abstract
|2022 TMS Annual Meeting & Exhibition
|Additive Manufacturing of Large-scale Metallic Components
|Prior-β Grain Structure Control of Ti-6Al-4V WAAM in the As-deposited Condition
|James Wainwright, Stewart Williams, Jialuo Ding, Alec Davis
|On-Site Speaker (Planned)
Deposition of Ti-6Al-4V in a plasma wire + arc additive manufacturing process typically produces a prior-β columnar grain structure exhibiting anisotropic mechanical properties. To achieve the formation of equiaxed grain structures which provide isotropic properties requires additional process steps. This research demonstrates a process for controlling the prior-β grain structure in the as-deposited condition through process parameters, removing the need for additional post-processing steps to enable columnar to equiaxed transition. EBSD analysis of deposited Ti-6Al-4V samples illustrates the refinement of the prior-β grain structure when there is a reduction in the specific energy density of material deposited and associated layer height increase. The application of pyrometry to measure the melt pool temperature during deposition identifies a repeatable reduction in the thermal gradient across the melt pool enabling microstructural evolution. Consequently, a solidification map is generated permitting microstructural refinement to be selected in terms of deposition parameters.
|Additive Manufacturing, Titanium, Other


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Contents viii 22.214.171.124 foulingtendencies 32 126.96.36.199 typesand phases offluids 32 188.8.131.52 maintenance,inspection, cleaning,repair,and extensionaspects 32 184.108.40.206 overalleconomy 32 220.127.116.11 fabrication techniques 33 18.104.22.168 choiceofunittypefor intendedapplications 33 1.5 requirementsofheatexchangers 34 references 34 suggestedreadings 35 bibliography 35 chapter2.
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Research Project Title:
Studying Liquid Transport Through Small Diameter Carbon Nanotubes
abstract:As science continues to advance, there is always an emphasis on nanoscale processes — for example, nanoscale mass transport, which has been recently revolutionized by carbon nanotubes (CNTs). These are nearly one-dimensional hollow tubes with diameters ranging from approximately 0.5 – 10 nm. Currently, interactions between molecules and the exterior of the nanotube are relatively well studied; however, discoveries about the interactions with the interior of the tube remain to be made. The hollow geometry of CNTs make them permeable to ions and molecules of appropriate sizes. Currently, liquid flow through small diameter nanotubes is not well controlled, but being able to reliably flow molecules through single-walled carbon nanotubes (SWNTs) will have many applications such as micro-channels, small-scale drug delivery, nanoscale plug flow reactors, and more. Previous work proves that liquid filling in small-diameter tubes is possible and can be controlled. For this study, I intend to first study spontaneous water filling in carbon nanotubes by using Raman spectroscopy to track liquid movement. Then, I will attempt to control the flow of water through nanotubes using potential differences across tubes.
"I have been a UROP student for almost two full academic years. During this time, I have gained valuable knowledge in various areas of research, as well as experience in how to be a focused and efficient researcher. I am participating in this program because I believe I am ready for the responsibility of working on my own project, and the experience I will gain will be helpful as I pursue a PhD following graduation."


1.1 This specication2 covers seamless carbon steel pipe for high-temperature service (Note 1)inNPS1 8 to NPS 48 [DN 6 to DN 1200] (Note 2) inclusive, with nominal (average) wall thickness as given in ASME B 36.10M. It shall be permissible to furnish pipe having other dimensions provided such pipe
ASTM A106 Grade C Specification covers seamless carbon steel pipe for high-temperature service (Note 1) in NPS 1-8 to NPS 48 inclusive, with nominal (average) wall thickness as given in ANSI B36.10. A106 Pipes having other dimensions may be furnished provided such pipe complies with all other requirements of this specification. Beveled End ASTM A53 / A106 Gr.B Seamless Carbon Steel Seamless Stainless Steel Pipe. Hot Rolled / Cold Drawn Seamless Stainless Steel Pipe 3 inch for Petroleum. ASTM A312 A269 A213 Stainless Steel Square Tubing , Thick Wall 1 - 12mm. High Yield Strength SS Steel Tube 00Cr17Ni12Mo2 , 6mm to 800mm OD. Cold Rolled ASTM A312 TP304 304L Stainless Steel Pipe Pickled / Annealed. Welded Stainless Steel Pipe
Seamless Steel Pipe Grade:astm a106 grade B OD:10.3-610mm WT:1.24-80mm Length:1-12m , can be fixed Technique:hot rolled,cold rolled,cold drawn ASTM A106 seamless pressure pipe (also known as ASME SA106 pipe) is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships where the piping must transport fluids China Cold Drawd High Precision Seamless Steel Tube fields that have high requirements to steel pipe's precision,finish,cleanness and mechanic properties. Outer diameter of cold-rolled precision seamless steel tube 10-70mm Wall thickness 1-13mm executive standard:GB / T 3639 cold drawn or cold rolled precision seamless steel tubes DIN2391 cold drawn or cold rolled precision seamless steel pipe
Carbon Steel Pipe, Hot Rolled Pipe, Steel Tube for Gas manufacturer / supplier in China, offering Cold Rolled Alloy Seamless Steel Pipe /Tube/Pipeline AISI 4340, API 5L/ASTM A106 Gr. B Schedule 40 Hot Rolled Cold Drawn Seamless Seamless Steel Pipe, High Quality Carbon Steel Thick-Wall Seamless Pipe and so on. China En10305/ DIN2391 Cold Rolled/Cold Drawn Finish Steel Pipe, Seamless Steel Pipe, Seamless Pipe manufacturer / supplier in China, offering En10305/ DIN2391 Cold Rolled/Cold Drawn Finish Rolling High Precision Seamless Steel Tube Pipe with Tolerance +/-0.1mm, PPGI Corrugated Prepainted Zinc Coated Galvanized Steel Roofing Sheet, 0.35mm Ral 3005 Color Prepainted Glavanized Steel Corrugated Roofing
Apr 23, 2021 · HIGH QUALITY SEAMLESS PSL1 AND PSL2 STEEL PIPES Standard:API 5L/ ASME B36.1M Steel Grade:A53 Gr/A106 GR.A GR.B Size and OD:1/8"-24"(10.3mm-610mm) Wall Thickness: Suppliers with verified business licenses Cold Drawn Seamless Mechanical Steel tube and pipe ASTM Cold-rolled precision seamless steel tube is higher than hot-rolled seamless steel tubes, the price is also higher than hot-rolled seamless steel tubes. Cold Drawn Seamless normal-caliber small, mostly in the 127mm below, especially in cold-drawn seamless tube outer diameter accuracy is very high, cold drawn seamless pipe lengths are generally
DIN 2391 St52/DIN 2393 St52.3/ASTM A106/JIS G3445 Stkm13c Bks Cold Drawn Seamless Carbon Steel Pipes/Cold Rolling or Cold Drawing Tube, Find Details about Cold Drawn, Carbon from DIN 2391 St52/DIN 2393 St52.3/ASTM A106/JIS G3445 Stkm13c Bks Cold Drawn Seamless Carbon Steel Pipes/Cold Rolling or Cold Drawing Tube - Jiangyin Gano Universal High Precision AISI 1020 Cold Drawn Carbon Seamless Steel Seamless Steel Tube, Seamless Tube, Hollow Bar manufacturer / supplier in China, offering High Precision AISI 1020 Cold Drawn Carbon Seamless Steel Pipe, China Q235 Q345 Square Tube 38*38 Steel Pipe Ms Hollow Section Rectangular, China Pre-Galvanized Steel Pipe Gi Steel Tube and so on.
High Precision Astm A106 Cold Rolled And Cold Drawn Seamless Steel Pipe Tube , Find Complete Details about High Precision Astm A106 Cold Rolled And Cold Drawn Seamless Steel Pipe Tube,Seamless Steel Pipe Tube,Cold Drawn Seamless Steel Pipe Tube,Astm A106 Seamless Steel Pipe Tube from Steel Pipes Supplier or Manufacturer-Shandong Tianzan Steel Precision Seamless Tubes DIN 2391 Precision Stainless Generally, precision seamless pipes such as din 17175 Cold Rolled Steel Tube are accepted in industries with high precision requirements, as opposed to their regular seamless counterparts, which are mostly applied without precision specifications. However, the expense of a precision seamless pipe of an identical specification tends to be much more high-priced in comparison to that of regular seamless pipes.
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ASTM A179 cold drawn seamless carbon steel pipe is mainly used in various sectors of the metal structure facilities, mainly after the rust of steel pieces immersed in 440 - 460 melting zinc solution, so that the steel surface attached to the St37 Mechanical Properties Cold Rolled High Precision Cold Rolled High Precision Seamless Steel Pipes belong to the best quality seamless steel pipes. It have bright and smooth surface.So they have great use on Mechanical Properties,the fittings of Car and Motorbike,Hydraulic Cylinder Systerm,Middle and Low Pressure Bolier Systerm,Shipping,Bearing and so on. ST37 Mechanical Properties Cold Rolled High Precision Seamless Steel Pipe
These rigid and structural a106 precision steel pipe are imported from the finest workshops in several countries and are equipped with loads of benefits and advanced building technologies. The a106 precision steel pipe you can find on the site are generally built using hot-dipped technology to prevent rusting and weakening of the structural elements. Suppliers of Steel Pipes & Tubes in Kenya, Top Pipe FactoryMetline is a professional steel pipes and tubes manufacturer with extensive experience to export goods to any port across the globe. We produce and sell xarbon steel pipes (CS Pipes), alloy steel pipes (AS Pipes) and stainless steel pipes (SS Pipes) in size range of out diameter 21.3mm-660mm , wall thickness 2.5-35mm and length up to 12 MTR.
ASTM A106/A 106M covers several grades of carbon and alloy steel seamless pipe ASTM A106/A 106M covers both seamless hot -finished and cold finished pipe in sizes up to and including NPS 1/8 TO NPS 48(DN6 to DN1200) outside diameter for round tubes with wall thicknesses as required.


Making Leather – Tanning Process
Making leather is a complicated process. The easiest way to understand the process of leather preparation is to understand the layer separation in which the leather is split across it’s thickness to produce a top layer (hair side) and the under layer. The top layer is called the grain and is the side exposed to the elements giving it the durability and malleability it needs to be considered fine leather. The underside is much stiffer and less durable than the top layer. This is practical for use after a coating or treatment is applied.
The process of tanning involves five distinct stages. Tanning, Selecting, Splitting/Shaving, Re-tanning and Finishing. Each one of these processes is complicated and requires many steps. The following is an outline of some of the more important points of each step.
Step 1: Tanning
Soaking – When the leather arrives at the tannery it may be soaked to extrude salts used in preserving leather. This is done in revolving drums which can hold up to 200 hides.
Liming – Hair and epidermis are removed and a solution of lime (calcium hydroxide) and sodium sulphide are applied to soften and enhance hide for softness and flexibility needed for upholstery leather.
This is the process which converts pre-tanned hide into leather.
Mineral tanning is normally done with alkaline chrome-3 salts. It penetrates the hide fairly quickly (24-48 hours). This results in a pale duck-egg blue, which after processing yields a fine, soft, modern finish. When there is absence of chromium tanning, other methods combine vegetable with polymers and syntans (synthetic tannins) as an alternative.
Other tanning methods are:
- Pure Vegetable Tanning
- Synthetic Tanning
- Oil Tanning
- Combination Tanning
Step 2: Selecting
After tanning excess water is removed from hide. Hides are then graded according to the quantity and locations of natural features and faults. Aniline and Nubuck leathers demand the best quality hides. Leather where hides that are heavily coated or embossed can utilize a lesser quality of hides.
Step 3: Splitting/Shaving
Splitting – The hide is split into layers. The top or grain layer will produce a fine, smooth grain leather. The bottom is used for suede or split leather for other uses.
Shaving – Given a uniform thickness.
Step 4: Re-Tanning
Dressing the hides involves the following:
- Dyeing – Dyes are added to color leather.
- Re-tanning – Additional tanning substances are sometimes added to modify the physical characteristics of the leather to suit its final use.
- Setting – A process which mechanically removes creases and excess water.
- Drying – The hides are stretched dried on large frames or vacuum dried.
- Trimming- The rough and ragged edges are removed.
Step 5: Finishing
The purpose of finishing are:
- To minimize the appearance grain blemishes without losing the natural beauty of the leather product.
- To give the required degree of gloss.
- To ensure the leather is soft, malleable and moldable.
- To give a more protective surface.
- To provide a surface which is easily cleaned.
- To give special effect like antique or special grain effects.
The finishing process uses a combination of surface coatings techniques such as padding, spraying or roller coating. Then there are mechanical processes such as buffing, staking and embossing.


(Yicai Global) Aug. 11 -- Chinese coke producer Baotailong New Materials Co. [SHA:601011] plans to invest CNY50 million (USD7.5 million) in a new graphite ore processing firm to supply raw materials for its graphene industrialization project, the company said in a press briefing on Aug. 10.
The graphite ore subsidiary, based in the city of Qitaihe in Northeast China's Heilongjiang province, will operate a 600,000-ton graphite fine powder concentrator and a tailings pond for processing waste.
Baotailong currently utilizes external concentrators to supply graphite raw materials for its graphene production plant, also in Qitaihe. The firm will save on outsourcing costs through the subsidiary and ensure a reliable supply of raw materials.
The company has considered building a local concentrator and tailing pond since late 2016, total investment at the time was projected to be CNY263 million.
Baotailong has branched out into the graphene market in recent years and developed a proprietary large-scale technique for graphene preparation. It completed construction of a graphene plant able to produce one million tons annually in October last year.


The vertical TiO2 nanotube arrays constituting the core of 3-D nanoscale electrode architecture were synthesized over Ti sheet by anodization. Such formed TiO2 nanotubes are electrically conducting and amorphous as confirmed by XRD studies. Nanotube morphology is affected by water content and in the present study, close-packed 3-4 μm long TiO2 nanotube arrays of 45-50 nm diameter are formed with 2% water as revealed by the transmission and scanning electron microscopy. The redox active polypyrrole sheath is created by ultra-short pulsed current electropolymerization. Electrochemical properties of the 3-D nanoscaled TiO2 nanotube core-polypyrrole sheath electrodes relevant to the energy storage were investigated using cyclic voltammetry (CV) plots, electrochemical impedance spectroscopy (EIS), Charge discharge (CD) tests. High areal capacitance density of 48 mF cm-2 and low charge transfer resistance 12 Ω cm-2 with least ion diffusion limitation are realized at optimized polypyrrole sheath thickness. The Raman spectra studies reveal anion at specific chain locations involve in the redox process.


Water hardness and acidity regulator. Improves the physicochemical properties of water used for nourishing and plant protection solutions. Neutralizes the negative properties of hard water and reduces their acidity (pH). Improves the solubility, combinability and efficiency of application of nutrition and protection products of cultivated plants.
PROAQUA is a colorless liquid and is used to improve the physicochemical properties of the water of the nutrient and plant protection sprays, as it neutralizes the negative properties of hard water and reduces the pH of the solution, usually by 1-1.5 units. (The term water hardness expresses the concentration in water of all the salts of calcium (Ca) and magnesium (Mg), with carbonate, hydrocarbon, chlorine or sulfate ions and is usually measured in mg / lit or p.p.m. CaCO3)
Thus it improves the solubility and the possibility of combining different products, contributing to the achievement of a stable and homogeneous solution and to the increased efficiency of application of nutrition and protection products of cultivated plants, if the application is made immediately after the creation of the solution.
Add the PROAQUA regulator to the water shortly before or when dissolving it of formulations intended for immediate application mainly of foliar spray. Suggested doses of PROAQUA:
In very hard water (with over 300 p.p.m.CaCO3) 200 ml in 100 liters of water (concentration of 0.2% solution).


Investigating the Role of Structural Water on the Electrochemical Properties of $\alpha$-V$_2$O$_5$ through Density Functional Theory
The $\alpha$ polymorph of V$_2$O$_5$ is one of the few known cathodes capable of reversibly intercalating multivalent ions such as Mg, Ca, Zn and Al, but suffers from sluggish diffusion kinetics. The role of H$_2$O within the electrolyte and between the layers of the structure in the form of a xerogel/aerogel structure, though, has been shown to lower diffusion barriers and lead to other improved electrochemical properties. This density functional theory study systematically investigates how and why the presence of structural H$_2$O within $\alpha$-V$_2$O$_5$ changes the resulting structure, voltage, and diffusion kinetics for the intercalation of Li, Na, Mg, Ca, Zn, and Al. We found that the coordination of H$_2$O molecules with the ion leads to an improvement in voltage and energy density for all ions. This voltage increase was attributed to the extra host sites for electrons present with H$_2$O, thus leading to a stronger ionization of the ion and a higher voltage. We also found that the increase in interlayer distance and a potential "charge shielding" effect drastically changes the electrostatic environment and the resulting diffusion kinetics. For Mg and Ca, this resulted in a decrease in diffusion barrier from 1.3 eV and 2.0 eV to 0.89 eV and 0.4 eV, respectively. We hope that our study motivates similar research regarding the role of water in both V$_2$O$_5$ xerogels/aerogels and other layered transition metal oxides.


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As stylish as metal, as carefree as glass: SCHOTT MetalLook brings trendy surfaces into the home
New surface combines the material advantages of glass with the precious look of stainless steel
Mainz, October 7, 2013, 2013 – Glass that looks like stainless steel: with MetalLook, the international technology group SCHOTT now offers a product that combines the virtues of glass with the precious look of metal. It is simply ideal for trendy surfaces in kitchens and homes, because it can be cleaned very easily. Furthermore, SCHOTT MetalLook allows for completely new design approaches. Because thin logos, lines or symbols can be applied to the stainless steel surface, this product is particularly well-suited for use in the control elements of ovens, refrigerators and other appliances.
Photo no. 214782: As stylish as metal, as carefree as glass: The new surface technology "SCHOTT MetalLook" combines the material advantages of glass with the precious look of stainless steel and brings trendy surfaces into the home.
Stainless steel decor has been popular in modern homes for some time now. The naturally shimmering surfaces give any room order and structure, nevertheless classic stainless steel surfaces are extremely sensitive. Whenever they are touched, this leaves behind fingerprints that can be seen immediately. And if anyone treats these surfaces a bit too roughly, this will leave behind scratches in the surface.
This is where the new SCHOTT MetalLook material, a modern and smooth glass surface with a stainless steel appearance, makes the most of its advantages. This glass material is much easier to clean because there are no joints between the metal and glass as in normal stainless steel oven doors. Fingerprints are also less visible on SCHOTT MetalLook than on a normal stainless steel surface.
SCHOTT MetalLook comes in different metallic color shades and brushed effects for a broad range of applications, such as oven doors, extractor hoods, refrigerators, splash backs for kitchens, etc. Manufacturers will also appreciate that the material requires less effort during the assembly process and thus lowers the manufacturing costs.
SCHOTT MetalLook is based on a patent-protected technology that was developed by SCHOTT and combines various processing steps to provide this special stainless steel appearance behind glass.
SCHOTT is an international technology group with more than 125 years of experience in the areas of specialty glasses and materials and advanced technologies. SCHOTT ranks number one in the world with many of its products. Its core markets are the household appliance, pharmaceuticals, electronics, optics, solar power, transportation and architecture industries. The company is strongly committed to contributing to its customers’ success and making SCHOTT an important part of people’s lives with high-quality products and intelligent solutions. SCHOTT is committed to managing its business in a sustainable manner and supporting its employees, society and the environment. The SCHOTT Group maintains close proximity to its customers with manufacturing and sales units in all major markets. Its workforce of around 17,000 employees generated worldwide sales of approximately 2.9 billion euros for the 2010/2011 fiscal year. SCHOTT AG, with its headquarters in Mainz (Germany) is owned by the Carl Zeiss Foundation.
Photo no. 214781
Phone: +49 6131/66-4094
Fax: +49 6131/66-9141
Fax: +49 6131/66-9141


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- Lin, Xuliang, et al. Show all 7 Authors
- Bioresource technology 2013 v.146 pp. 478-484
- Trichoderma; adsorption; cellulose; endo-1,4-beta-glucanase; enzymatic hydrolysis; enzyme activity; lignin; molecular weight; monitoring; polyethylene glycol; quartz
- ... Four fractions of one commercial sodium lignosulfonate (SXP) with different molecular weight (MW) and anionic polymers were studied to reduce non-productive adsorption of cellulase on bound lignin in a lignocellulosic substrate. SXP with higher MW had stronger blocking effect on non-productive adsorption of a commercial Trichoderma reesi cellulase cocktail (CTec2) on lignin measured by quartz crys ...


Rotary Degassing Aluminum is an important method of degassing in foundry. For many years, the major aluminum processing companies in the world have continuously pursued the improvement of the metallurgical quality of materials in order to improve the quality of their products. In order to achieve this goal, we have continuously developed melt purification technology to achieve the purpose of improving the purity of the melt.
Relationship Between Al2O3 and H
The interaction between Al2O3 and H in the aluminum liquid. After the aluminum liquid contains more Al2O3 impurities, it will increase the hydrogen content of the aluminum liquid, and it is difficult to remove. On the contrary, the Al2O3 content is very low, and the hydrogen content is also low. Even if hydrogen is artificially introduced, it will automatically degas and return to the original hydrogen content. Casting castings with this pure aluminum liquid will rarely cause pores. It can be seen that there is a close relationship between Al2O3 and H in the aluminum liquid.
The adsorption of hydrogen by Al2O3 belongs to physical adsorption. Hydrogen exists in the cracks of Al2O3, forming hydrogen bubbles with a negative radius of curvature.
The modern aluminum melt flux purification mechanism believes that only by first focusing on the purification of oxidized inclusions in the aluminum liquid, and effectively reducing the inclusion content, especially the number of dispersed inclusions suspended in the aluminum liquid, can the aluminum liquid be prevented from increasing. Hydrogen, eliminate the obstacles to hydrogen removal, thereby obtaining pure aluminum liquid, and pouring a sound aluminum alloy casting.
The smelting process has always only mentioned “degassing and deterioration”, and little or no mention of “slag removal”. In fact, slag removal and degassing occur at the same time. Since the slag is tangible and visible, the effect of slag removal is easier to judge and Control, so more attention should be paid. Now people have more and more understood the phenomenon of “the slag is exhausted, and the gas must be removed” and summarized the principle of the aluminum liquid refining process of “removing the slag as the main and the gas as the supplement”.
Principle of Rotary Degassing Aluminum
With the help of a specially designed blowing head, inert gas is introduced into the molten metal. Through the rotation of the blowing head, a fast-moving gas and water vortex is formed in the depth of the melt, so that the bubble size becomes small and uniform, thereby achieving floatation Purpose of refining.


50% Repreve® polyester from recycled plastic
25% organic, US grown, combed, ring spun cotton
25% TENCEL™ Modal (made from sustainably sourced beech trees)
These sustainable fibers combine to create a soft, flexible, and smooth fabric. Each shirt uses 6 recycled poly water bottles and all fabric is spun, knitted, processed and finished in the USA. The shirts are cut and sewn in Haiti at a fair trade facility.


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Global Composite Panel Market, Trends | Industry Insight 2026 Increasing adoption of aluminum composite panels in various end use industries, and increasing use of engineered wood panels in furniture, and flooring in residential and commercial buildings are major factors expected to boost growth of the North America composite panel market to a significant extent.
Agricultural solutions - Tegral Composite flooring Tegral have been at the forefront of development with regard to metal roofing, cladding and flooring systems for decades. Based in Athy, Co. Kildare, we have been an integral part of the Irish construction industry since 1936.
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Composite Metal Flooring Ltd: Company Profile - Bloomberg Composite Metal Flooring Ltd is headquartered in Wales. The company's line of business includes providing general contracting services such as constructing heavy construction projects.
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Adhesive Bonding of Composites Composite Bonding Definitions: Secondary Bonding: The joining together, by the process of adhesive bonding, two or more pre-cured composite parts, during which the only chemical or thermal reaction occurring is the curing
Contact us | Composite Metal Flooring Composite Metal Flooring Ltd. understands that your privacy is important to you and that you care about how your personal data is used. We respect and value the privacy of all of our employees and customers and will only collect and use personal data in ways that are described here, and in a way that is consistent with our obligations and your ...
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Bronkhorst propose des solutions pour réguler et mesurer les débits : débitmètres pour Gaz et Liquides, régulateurs de pression électroniques, solutions sur mesure
La satisfaction des clients, l'innovation, la qualité des produits et des services sont les clés du succès de Bronkhorst. En se basant sur notre expérience, nos innovations et notre sens des responsabilités, une collaboration avec Bronkhorst assure une Performance for Life.
Les instruments Bronkhorst sont utilisés pour de nombreux marchés et des applications variées. Dans cette rubrique, vous aurez une vue d'ensemble des principaux marchés pour nos équipements, illustrée par quelques exemples typiques d'applications.
Vous recherchez une documentation technique, vous souhaitez en savoir plus sur les principes de mesure des instruments Bronkhorst ou souhaitez contacter un ingénieur de service Bronkhorst ? Cette rubrique vous guidera vers les sujets pertinents de service et d'assistance.
Bronkhorst France - 30 ans de savoir-faire en instrumentation.
Débitmètres, Régulateurs de débit & Pression, Systèmes d’évaporation -
Assistance technique & Service d’étalonnage
HELLA is a family-owned, Germany-based and worldwide active company who develops and manufactures lighting components and systems for the automotive industry. Car headlamps are a core business, with a plastic reflector at the backside and a transparent glass-like plastic lens in the front of each headlamp as essential components.
Part of the headlamp manufacturing process is applying a UV-resistant varnish on the transparent lens, and a chrome-like coating on the reflector, both applied by a coating robot, involving several coating steps. As the quality of the applied coatings during initial testing was not constant, HELLA asked Bronkhorst for assistance. Due to the use of Bronkhorst mass flow meters, HELLA was able to analyse the application process accurately, and to identify essential steps in the process to improve the coating quality.
For an optimum headlamp performance, the UV-resistant varnish as well as the chrome-like coating should be smooth - so without irregularities - and of uniform thickness.
In a test setup at HELLA, a Coriolis mass flow meter (series mini CORI-FLOW M15) was positioned immediately upstream of the spraying pistol of the coating robot, and for 14 days all kinds of tests were performed. Due to the use of this mass flow meter, a high measurement accuracy has been obtained that they had never seen before. Combined with the FlowView software package, the M15 mass flow meter measured negative effects within the coating application process that did not get noticed up to that moment. Repeatability issues as well as artefacts within each of the coating application steps were identified using this Bronkhorst solution.
After these negative effects were identified, HELLA removed them from the process after a thorough investigation, leading to an improved process and a much better coating quality. This resulted in an optimised and faster coating application process.
According to HELLA, the combination of the mini CORI-FLOW M15 device and FlowView software is a very powerful and professional tool for analysis purposes. In addition to the performed tests, they ordered two Coriolis mass flow meters for a pilot setup, and they have plans to order additional mini CORI-FLOW M15 devices for the paint train in real production. In the latter case, there will be a change from standard devices to explosion proof devices.


There is no trustable portable gemstone tester. There are dozens of models, but they are actually hardness testers, which does not prove the authenticity of a stone.
Unfortunately, this is one of the most frequently tool used by gemstone sellers.
If you look at the picture you will see a ruler with numbers starting from the left to the right by 1, 2, 3, 4, 5 ….
LEDs light up when you touch the surface of the stone. You can see the number that corresponds to the hardness of the stone.
This information is accurate. This is the scale of hardness, also called Mohs scale
Examples of Mohs scale hardness
1 – Talc
2 – Gypsum
3 – Calcite
4 – Fluorite
5 – Apatite
6 – Feldspar Orthoclase
7 – Quartz
8 – Topaz
9 – Corundum
10 – Diamond
The Mohs scale of mineral hardness is based on the ability of one mineral sample. The samples of matter used by Mohs are all different minerals. Minerals found in nature are chemically pure solids. Also one or more minerals make rocks. As the hardest known naturally occurring substance, when Mohs created the scale, diamonds are at the top of the scale.
The hardness of a material is measured against the scale by finding the hardest material in the stone, compare to a softest material by scratching the material. For example, if some material can be scratch by apatite but not by fluorite, its hardness on the Mohs scale would fall between 4 and 5.
The hardness of a stone is due to its chemical composition
Since a synthetetic stone has the same chemical composition as a natural stone, this tool will show you exactly the same result for a natural or synthetic stone.
Therefore, natural or synthetic diamond will show you 10. Natural or synthetic ruby will also show you 9. Same for natural or synthetic sapphire: 9. Also for natural or synthetic quartz: 7 …
If you are interested in this topict, want to go from theory to practice, we offer gemology courses.


A Study of Point Defects in the B2-Phase Region of the Fe-Al System by Mössbauer Spectroscopy
In this work, Mössbauer spectroscopy and X-ray powder diffraction (XRD) are used in a study of point defect formation in intermetallic phases of the B2 structure of the Fe-Al system as a function of Al concentration. The results are compared with the concentrations of point defect determined from positron annihilation data. In the Mössbauer effect, two types of samples are investigated: Fe-Al alloys with few additives obtained by induction melting and Al-rich metallic powders produced by the self-decomposition method and intensive grinding of high energy in the electro-magneto-mechanical mill. The work presents the values of the 57Fe isomer shift and quadruple splitting for the components describing the point defect in the local environment of a Mössbauer nuclide. The concentration of the Fe vacancies and Fe atoms substituting Al (Fe-AS) are determined. The results show that an increase in Al content causes an increase in vacancy and Fe-AS concentration.
Luís Guerra ROSA and Fernanda MARGARIDO
A. Hanc and J. Kansy, "A Study of Point Defects in the B2-Phase Region of the Fe-Al System by Mössbauer Spectroscopy", Materials Science Forum, Vols. 636-637, pp. 651-656, 2010


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Radiographic evaluation of concrete involves the use of radiographic test on building elements to examine the internal condition of concrete. This test is capable of examining concrete members without causing any damages. It determines the location of reinforcing steels, voids in concrete, and the position of stressing wires and ducts.
The radiographic test is based on the ability of X-rays or gamma rays to pass through materials under examination. When radiation travels through concrete element, different parts of reinforced concrete element such as steel bars, concrete, and voids would absorb different quantity of x-rays.
Radiographic film which is sensitive to radiation is used to catch images of defects and steel bars. This enables the observer to detect and specify the location of steel bars, voids, and cracks, accurately.
Radiographic Test Equipment
- X-ray equipment or Gamma ray sources to direct gamma or x-ray into concrete element.
- Radiographic film to catch image of defects and steel bars.
Principles of Radiographic Test
Radiographic is based on the penetration of x-ray or gamma ray into concrete and employing a film to take image of defects in concrete elements. The concrete member to be tested is placed between the radiation source and detector. As the radiation passes through the member its intensity is reduced according to the thickness, density, and absorption characteristics of the materials within the member.
Differential absorption of the travelling radiation through reinforced concrete member generate distinct differences when recorded on radiographic film. The resolution of produced images rely on the orientation of the defects in concrete member with regard to the source of x-ray or gamma ray and radiographic film.
Reinforcing bars absorb more energy than the surrounding concrete and show up as light areas on the exposed film. Cracks and voids absorb less radiation and show up as dark zones on the film. Crack planes parallel to the radiation direction are detected more readily than cracks perpendicular to the radiation direction.
The penetrating ability of portable X-ray units is limited and is used for members less than 300 mm thick. Gamma rays result from the radioactive decay of unstable isotopes and a gamma ray source cannot be turned off. Extensive shielding is needed to contain the rays when not used for inspection. Gamma ray sources are available that can penetrate up to 450 mm of concrete. For thicker structural elements, a hole may be drilled and the source placed inside the member.
Finally, extreme care shall be practiced to avoid risks of radiation during the test. So, necessary measures and modifications need to be considered prior to the test.
Limitations of Radiographic Test
Radiographic test encounter certain restriction when it is used to test thick concrete members. This because heavy equipment is need to direct x-ray. Such equipment would be difficult and time consuming to set up in the field, and the cost of the test could increase.
Moreover, a system of shielding is required when thick concrete element is tested due to the presence of scattered radiation. The system of shielding may include collimation, masking, filters, back shielding and special intensifying screens.
The interpretation of concrete radiographs can also be difficult since there is no standardized terminology for imperfections and no standardized acceptance criteria.
Applications of Radiographic Test
- It can be utilized to locate the position of reinforcement bar in reinforced concrete
- Radiographic test result can be used to evaluate bar diameter and depth below the surface.
- It can reveal the presence of voids, cracks and foreign materials, the presence or absence of grouting in post-tensioned construction and variations in the density of the concrete.
- Pipeline welded joint inspection
- Pressure vessel fabrication quality control
- Welder qualification testing
- Structural steel fabrication
- Detect Discontinuities in weld
- Determine the extent of corrosion (internal and external)


Clear BIODEGRADABLE Bendy STRAWS, 250pcs
A perfect alternative to standard plastic, these unique straws will break down when they come in contact with heat, moisture and bacteria, then the degradation process begins.
Made from a special material called REPA that is made from ground seashells, non toxic and 100% biodegradable they are the perfect eco friendly alternative to harmful plastics.
Flexible and sturdy, these eco-friendly straws are designed with bars, restaurants or catered events in mind. Measuring 200mm in length, which makes them ideal for cocktails, soft drinks or milkshakes, can be used including bars, cafes, coffee shops, restaurants, pubs and catering.
• Eco-friendly clear straws, Completely biodegradable
• Material: Oxo-Biodegradable Polypropylene
• Bore size - 5mm
• Perfect for long beverages
• Ideal for commercial and domestic use
• Flexible yet sturdy
• Within a few months the structure of the product breaks down leading to degradation


Hydraulic presses are Tooling Machines used to generate a compression force using a hydraulic cylinder; in simple words, they use the pressure exerted on a fluids to press something according to the principle of Pascal’s law: a hydraulic press makes use of incompressibility of the fluids and through the application of pressure in a confined space, creates a pressure that is exerted in all directions by the fluid. One advantage of Locatelli Meccanica hydraulic stamping presses is the constant force during the stroke in the stamping process.
Our machines are highly sturdy. The sturdy construction has minimum deflection under maximum load conditions, resulting in uniform pressing over the entire working area. Hence they have low power consumption, and because of this feature they are highly economical. These machines offer operational flexibility to ensure maximum stiffness. There are also automatic and manual programs: the automated machines come with additional safety measures.
Our hydraulic presses are classified based on the Hydraulic capacity: from 35 to 1200 tons. The 300 tons hydraulic presses, for example, can be used in the minting industry for striking coins or in the automotive industry to press high precision parts.
VARIOUS ADVANTAGES IN USING LOCATELLI MECCANICA HYDRAULIC PRESSES
A hydraulic press is a very important tooling machine that is used for different types of industrial applications. These presses can be used to carry out a wide number of functions such as, pressing, punching, forging, crushing, deep drawing, metal forming processes as well as other tasks that require the application of sudden forces. The advantages are numerous over other types of conventional presses, that is why they are most commonly found in industries now a days.
In the Automotive Industry, our hydraulic presses are mainly used in brake pads production and sealing components production, as well as some small high precision components coining. They are used by car and truck parts manufacturers for original equipment and after market products. Presses are also used in the manufacture of exhaust systems, seat belt retractors, windshield wiper blades, carburetors, fuel injection sensors, gear assemblies, bearing assemblies, clutch friction material bonding and in additional stamping and forming operations.
These machines are also greatly used in Appliances Manufacturing Sector. Hydraulic presses are used to manufacture different products such as refrigerators parts, washing machines components and other types of home appliances. Moreover, are also used for compressing panels in composite materials, in the Ceramic and Abrasives Industry they are used to compact powered material, in the manufacturing of sporting goods that include golf heads and alpine hooks. Finally, the Aerospace Industry for the production of high precision parts for satellites and airplanes, Electrical industry for plugs, housings, switches and thermostats, as well as electrically operated products such as motors components, pumps parts and electrical appliances.
Jewelry/Minting Industry, Watch Industry and Spectacle Frames Industry are the 3 main sectors where Locatelli Meccanica has sold more than 1500 presses in the years, so that today our Company is the worldwide leader supplier in these kind of industries.