History of Tungsten Carbide
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- Category: Tungsten Information
- Published on Thursday, 12 September 2013 18:37
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Tungsten is a resilient steel-gray metal, located in many different ores. While the metal was actually discovered by Carl Wilhelm Scheele in 1781, its many uses weren't discovered until the early decades of the twentieth century. Tungsten carbide has been used in mining and mechanical applications--everything from light-bulb filaments and x-ray tubes to drill bits.
Discovery
Scheele discovered a new acid which could be made from an ore called tungstenite--later known as scheelite. In 1783 Jose and Fausto Elhuyar managed to isolate and extract tungsten from the ore.
The Twenties and the Thirties
Tungsten carbide was used by the German company Osram in place of diamond drawing dies. Cemented carbide was invented and used for the cutting and milling of iron and steel.
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working with tungsten carbide
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- Category: Tungsten Information
- Published on Thursday, 12 September 2013 18:34
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Organ Problems
When tungsten carbide is swallowed, it can lead to loss of appetite, nausea, vomiting and diarrhea. The China Tungsten Industry Association states that "reports outside the [tungsten carbide] industry suggest that ingestion of significant amounts of cobalt has the potential for causing blood, heart and other organ problems."
Reducing Exposure
When working with tungsten carbide, you can reduce your exposure by wearing clothing that covers your skin, including gloves and safety glasses; wearing a respirator or working in a well-ventilated area; cleaning work areas using a vacuum cleaner with a HEPA filter or other system that removes small particles from surfaces and the air; and always washing skin that has been exposed to tungsten carbide thoroughly.
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Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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Hazards of Tungsten Carbide
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- Category: Tungsten Information
- Published on Thursday, 12 September 2013 18:32
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The most frequently utilized hard metal in manufacturing today, tungsten carbide, is used to make a wide variety of products, including wedding rings, golf clubs and machinery. Tungsten carbide is favored by manufacturers because it is strong, durable and heat tolerant. It is made primarily of tungsten and cobalt and small amounts of other metals such as nickel. Workers exposed to airborne tungsten particles do not appear to have any adverse health effects, but exposure to airborne cobalt particles can have a serious impact on health.
Eye and Skin Irritation
When the eyes and skin are exposed to tungsten carbide, the result is irritation. In addition, repeated exposure can result in allergies to tungsten carbide, as well as to nickel and cobalt.
Respiratory Ailments
Inhalation of tungsten carbide dust can lead to nose, throat and lung irritation. Repeated exposure to tungsten carbide can lead to a range of serious respiratory ailments including asthma, pulmonary fibrosis and hard-metal lung disease.
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Email: sales@chinatungsten.com
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working with tungsten carbide
- Details
- Category: Tungsten Information
- Published on Thursday, 12 September 2013 18:34
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Organ Problems
When tungsten carbide is swallowed, it can lead to loss of appetite, nausea, vomiting and diarrhea. The China Tungsten Industry Association states that "reports outside the [tungsten carbide] industry suggest that ingestion of significant amounts of cobalt has the potential for causing blood, heart and other organ problems."
Reducing Exposure
When working with tungsten carbide, you can reduce your exposure by wearing clothing that covers your skin, including gloves and safety glasses; wearing a respirator or working in a well-ventilated area; cleaning work areas using a vacuum cleaner with a HEPA filter or other system that removes small particles from surfaces and the air; and always washing skin that has been exposed to tungsten carbide thoroughly.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten & Molybdenum Information Bank: http://i.chinatungsten.com
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Nickel or Cobalt
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- Category: Tungsten Information
- Published on Thursday, 12 September 2013 18:30
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Which metallic binder is used can have an effect on the final product. For instance, if a tungsten carbide ring is made with cobalt, then it may cause a rash on the finger of the person wearing it, or it may tarnish by coming into contact with the oils produced by a person's skin. Nickel on the other hand does neither of these things, and it creates a safer, more durable product. Unfortunately though, nickel is much more expensive. So like any product, the particular components required should be taken into account before manufacturing to be sure that the final result has all the necessary attributes.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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