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How Tungsten Carbide is Made

Details: Category: Tungsten Information; Published on Tuesday, 10 September 2013 09:38; Hits: 1917

What Is Tungsten Carbide?

Tungsten is a heavy, gray metal with bluish overtones. When mixed with black carbon, tungsten carbide is created.

General Process

The compound is made by heating pulverized tungsten with black carbon, when hydrogen is present. Temperatures range from 2,550 to 2,900 degrees F or 1,400 to 1,600 degrees C. A common method for making the compound was developed in the 1920s in Germany and involves mixing powered tungsten carbide with cobalt. This mixture is then made into the required shape and heated to 2,550 to 2,900 degrees F or 1,400 to 1,600 degrees C. This heat melts the tungsten carbide partially, working as a cement. These tungsten carbide-cobalt creations are known by the names Carboloy and hardmetal.

Another Process

The tungsten and carbon is made into a powder using a pulverizer. The materials are then placed into a crucible and heated using an arc of electricity. The two materials then combine creating the tungsten carbide.

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Uses of Tungsten Carbide

Details: Category: Tungsten Information; Published on Tuesday, 10 September 2013 09:33; Hits: 1854

A gray, inorganic material, tungsten carbide functions as a hardener in armor-piercing projectiles, the sharp edges of drills and saws, and cast iron. Besides industrial uses, it is also used to create jewelry due to its hardness and deduced risk of allergic reactions among those with sensitive skin, among other desirable properties.

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How to Recognize Carbide

Details: Category: Tungsten Information; Published on Tuesday, 10 September 2013 09:28; Hits: 1805

Carbide is a compound that is formed from carbon and another metal, typically tungsten, although there are many types of carbides, all with slightly different properties. Carbide is noted for its strength and durability and is often used in parts for tools. Because it is designed for durability, carbide has some fairly unique characteristics and determining if an item is made from carbide is not very difficult. Learning to distinguish carbide from other materials can be a valuable skill, as recycling carbide is fairly profitable.

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How to Determine If Tungsten Carbide Contains Cobalt

Details: Category: Tungsten Information; Published on Tuesday, 10 September 2013 09:31; Hits: 1842

Tungsten carbide is a common term used when discussing jewelry. However, tungsten carbide is used in a wide range of manufacturing processes. In many cases, tungsten carbide contains cobalt. Cobalt contains nickel and chromium. According to the New Jersey government website, these chemicals can increases the chances of severe asthma and "hard metal lung" disease. The average employee working with tungsten carbide does not have access to the testing equipment necessary to test for cobalt. However, thanks to government regulations, there is one way you can determine of the tungsten carbide you work with has cobalt in it.

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Tungsten Carbide is Known for its Hardness and High Melting Point

Details: Category: Tungsten Information; Published on Tuesday, 10 September 2013 09:25; Hits: 1711

Tungsten carbide is known for its hardness and high melting point. On the Mohs scale for testing hardness, tungsten carbide receives a rating of nine, surpassed only by diamonds, which have a hardness of 10. This hardness makes tungsten carbide very scratch-resistant. The melting point of tungsten carbide is around 2,600 degrees Celsius. By itself, tungsten carbide is not a naturally occurring material, it is only produced by combining the elements of tungsten and carbon.

Uses

Cutting tools for drilling, mining and construction often incorporate the use of tungsten carbide. These are undoubtedly the biggest markets for tungsten carbide, accounting for around 60 percent of its use. The use of this material in jewelry is becoming popular. Everything from rings to necklaces can be fashioned out of tungsten carbide. Tungsten carbide is also used on the tips of trekking poles and as spikes on snowmobile equipment. It is also used in ball point pens to align the roller ball with ink. Filaments from light bulbs are made out of tungsten because of its resistance to heat.

Military

Tungsten carbide is used in the creations of some weapons' ammunition. Armor-piercing ammunition is manufactured from tungsten carbide.

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