tungsten carbide contaminate


TUNGSTEN CARBIDE MANUFACTURING MATERIAL SAFETY DATA SHEET MSDS # 908 Date of Issue: 4/08 Supersedes: 7/06 1 of 4 SECTION 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION Product Name: All Tungsten Carbide Mfg Grades, Tube Rods, Brazed Tools, and Sludges Chemical Name: Tungsten Carbide Product with Cobalt/Nickel binder and Brazed Carbide …

Emerging Contaminant Tungsten - EPA

Tungsten is a common contaminant at industrial sites that use tungsten and at DoD sites involved in the manufacture, storage, and use of tungsten-based ammunition (DoD 2007). Tungsten particles may be present in air as a result of mining, weathering of rocks, or industrial applications that involve tungsten.

Technical Fact Sheet – Tungsten - US EPA

Technical Fact Sheet – Tungsten . November 2017 . Introduction ... field personnel who may address tungsten contamination at cleanup sites. ... include tungsten metal, tungsten carbide, ditungsten carbide, tungsten trioxide, tungsten oxides and tungsten disulfide (Lemus and Venezia

Tungsten Poisoning: How Tungsten Affects Your Health

Nov 28, 2013· How Tungsten Affects Your Health. Once industrial tungsten has infiltrated the air, food, or our drinking water, you can be exposed to higher levels of the metal than you would experience from natural sources. For those living in urban areas, tungsten contamination can pose more of a threat.

Can I rhodium plate a tungsten carbide ring? - Finishing

Oct 11, 2011· Can I rhodium plate a tungsten carbide ring? 2007. I recently bought a pair of wedding bands made of tungsten carbide from an online store because I was sold on the strength of the metal especially how hard and scratch-proof it is.

Tungsten Carbide Production and Quantification of Purity ...

Aug 04, 2014· Our Application Note: AN1406 - Analysis of Trace Elements in Tungsten Carbide, Using a Barium Fluoride Carrier demonstrates the ability of the Teledyne Leeman Lab’s Prodigy DC Arc to determine trace elements in high-purity tungsten carbide. A 50:4:1 blend of graphite, barium fluoride and germanium(IV) oxide was employed as a carrier.


Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

Common Defects in Tungsten Carbide Parts

Common Tungsten Carbide Defects. From the book Building Superior Brazed Tools Buy the Book. Internal. The most common and most serious problems in Carbide are internal. Left is a well made tip that suffered impact and had only minor chipping in one corner. Right is tip that was poorly made and failed along a fault line.

Tungsten carbide - Wikipedia

The outer parts are made of steel, which rusts, so keep it as dry as possible except when cleaning it. Tungsten carbide is a dense ceramic, similar in hardness to aluminum oxide. By itself it is difficult to manufacture into shapes, so tungsten carbide powder is usually mixed with a cobalt metal binder, and such is the case here.


Wash contaminated clothing before reuse IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing ... Tungsten Carbide 12070-12-1 50-97 Cobalt 7440-48-4 0-30 Nickel 7440-02-0 0-25 Tantalum Carbide (Ta4C5) 12070-06-3 0-22 ...

How to Correctly Grind, Cut & Prepare Tungsten Welding ...

contaminated tip removal. What to do with contaminated tungsten electrodes is the most frequent problem confronting anyone doing TIG welding. A contaminated electrode produces an erratic arc and a dirty, contaminated weld. If the contamination of the electrode is small, however, it usually can be removed by regrinding.

Perfectly Sharpen Tungsten for TIG Welding!: 3 Steps

Perfectly Sharpen Tungsten for TIG Welding!: Anyone who has TIG welded has experienced contaminating the tungsten. Whether you dipped the hot tungsten into the molten weld puddle, or touched the filler rod to the tungsten, you're guaranteed a trip to the grinder to clean up that electrode! ...

How to Recycle Tungsten Carbide - 911metallurgist.com

Tungsten carbide (WC) is chemically a binary compound of tungsten and carbon in the stoichiometric ratio of 93.87% tungsten and 6.13% carbon. However, industrially the term usually implies cemented tungsten carbides (CWC); a sintered powdered metallurgical product consisting of very fine grains of pure tungsten carbide bound or cemented together in a cobalt matrix.

SAFETY DATA SHEET Tungsten Carbide Burs - All Types

Tungsten Carbide Burs - All Types (3/31/2015) Page 3 of 6 Personal precautions, protective equipment, and emergency procedures: Wear appropriate protective clothing as needed to avoid eye and skin contact. Environmental precautions: Avoid release into the environmental. Report releases as required by local, state and federal authorities.

Tungsten Carbide Soldering Pick | Contenti

Tungsten Carbide Soldering Pick - Made from tungsten carbide, which is more heat tolerant than titanium. The ideal choice when soldering platinum, the Tungsten Soldering Pick can be used when soldering all precious metals and will not discolor or contaminate them. The tungsten alloy in

Ready-to-Press Carbide Grade Powders - Kennametal

Kennametal Ready-to-Press Powders We pre-blend ready-to-press tungsten carbide to achieve specific qualities of the powder. We can provide a sampling of some of our hundreds of standard grades to you so you can see the variety of functions our grade powders can serve.

Tungsten Carbide, Carbide China - CY Carbide MFG. Co., Ltd.

Preface: Tungsten Carbide, also referred as to Cemented Carbide, is manufactured by powder metallurgy methods. The tungsten carbide powders are mixed with a binder metal, which is normally cobalt or nickel in 3-28%, compacted in a die and then sintered in a …

Characterization of exposures among cemented tungsten ...

Characterization of exposures among cemented tungsten carbide workers. Part II: Assessment of surface contamination and skin exposures to cobalt, chromium and nickel. Skip to main content.


Tungsten Carbide is a gray powder. It is often mixed with Nickel and Cobalt to make cemented Tungsten Carbide which is used in tools for machinery and metal cutting, and rock drills. REASON FOR CITATION * Tungsten Carbide is on the Hazardous Substance List because it is cited by ACGIH and NIOSH. * Definitions are provided on page 5.

ATSDR - Public Health Statement: Tungsten

Jan 21, 2015· Chemical compounds of tungsten are used for many purposes. Cemented tungsten carbide, a hard substance used to make grinding wheels and cutting or forming tools, is the most common tungsten compound. Other tungsten compounds are used in ceramic pigments, as fire retardant coatings for fabrics, and as fade-resistant dyes for fabrics.

Grinding Media | Glen Mills

The range of specific gravity for commercially available grinding media runs from sp.gr. 1.0 for plastics to sp.gr. 15 for tungsten carbide. It makes sense that you wouldn’t select a very light grinding bead for a highly viscous system or a very dense grinding bead for a low-solids aqueous suspension.

Tungsten contamination in BF2 implants

Tungsten contamination in BF2 implants. ... According to the tungsten carbide (WC) charge exchange model, if a WC ion becomes double charged just before the …


Technical Fact Sheet – Tungsten . January 2014 . ... field personnel who may address tungsten contamination at cleanup sites. ... tungsten carbide and tungsten alloys, which are used in many general welding and metal-cutting applications, for operations within the aerospace

Alloy Carbide Company

Experience with precision tolerances and finishes in both grinding, machining, polishing, brazing, lapping, and evaluation techniques makes Alloy Carbide Co your first choice in repairs and service work. Take advantage of our 300 years of combined experience in our work force to propel your component into the highest quality product possible.

The influence of tungsten carbide contamination from the ...

The use of ultrasonic mixing method eliminates the problem of tungsten carbide contamination and its subsequent oxidation in materials in working environment carbide phases. 4. The process of milling in a planetary mill leads to the decrease of unit cell volumes and crystallite sizes of the created phases.

High energy milling on tungsten powders - ScienceDirect

The use of a WC/Co milling system results in high contamination of the samples especially tungsten carbide and cobalt for the longer milling times. 3. Powders milled using tungsten grinding media exhibit finer grain size and enhanced sinterability compared to those milled using tungsten carbide …

Zinc Reclaimed Powders | Global Tungsten & Powders Corp.

Zinc Reclaimed Powders Tungsten carbide-cobalt powders produced from the zinc reclaim process provide a cost-effective and dependable addition to you supply-chain. GTP purchases high quality hardmetal scrap as a raw material and manufacture several grades of tungsten carbide-cobalt powders.

Sepor Mini Jaw Crusher - Mineral Processing & Metallurgy

Hardened steel alloy plates for users not concerned with iron contamination and 85% Alumina (Ceramic) for those who can not tolerate iron contamination. A tungsten carbide model is also available, which is the hardest material of the three. The tungsten carbide contains 6% cobalt as a binder. All jaw plates are interchangeable.

Tungsten carbide | WC - PubChem

SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container.Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal.

Tungsten Carbide Soldering Pick | Contenti

Tungsten Carbide Soldering Pick - Made from tungsten carbide, which is more heat tolerant than titanium. The ideal choice when soldering platinum, the Tungsten Soldering Pick can be used when soldering all precious metals and will not discolor or contaminate them. The tungsten alloy wi

Tungsten carbide (cemented) - CDC

Tungsten carbide (cemented) containing Nickel: NIOSH. At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand …

Tungsten Carbide Dental Burs - Direction For Use

EDGE™ Carbide Burs are manufactured from a single piece of tungsten carbide (TC) or from a TC tip brazed onto a surgical steel stem. The range includes patterns designed to meet the needs of all surgery and laboratory applications. 2. Applications EDGE Carbide Burs can be used to cut or polish a wide variety of materials encountered in dentistry.

Chemical Vapor Deposition of Tungsten Oxide - Deep Blue

Chemical Vapor Deposition of Tungsten Oxide Rein U. Kirss* and Lamartine Meda Department of Chemistry, Northeastern University, Boston, MA 02115, USA Crystalline and amorphous thin films of tung-sten(VI) oxide can be prepared by chemical vapor deposition using a variety of volatile precursors below 500 °C. Deposition parameters

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