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Solid Carbide's Considerations

Category: Tungsten Information
Published on 10 September 2013
Insert carbide drills offer a cost-efficient alternative to solid carbide drills, especially for medium- and large-size holes. Insert carbide drills allow you to change the insert when it dulls, which is much less expensive than replacing the drill.
 
 
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How Tungsten Carbide is Made

Category: Tungsten Information
Published on 10 September 2013
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

Category: Tungsten Information
Published on 10 September 2013

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 Determine If Tungsten Carbide Contains Cobalt

Category: Tungsten Information
Published on 10 September 2013

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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How to Recognize Carbide

Category: Tungsten Information
Published on 10 September 2013

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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Tungsten Carbide is Known for its Hardness and High Melting Point

Category: Tungsten Information
Published on 10 September 2013
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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Uses of Tungsten Carbide

Category: Tungsten Information
Published on 10 September 2013
Tungsten carbide is formed by the union of tungsten and carbon. This metal is considered to be one of the hardest and most durable of all metals. Tungsten carbide has applications in industries such as mining, drilling and the military.
 
 
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Major Producers of Tungsten

Category: Tungsten Information
Published on 10 September 2013
China, Russia and Korea are all major producers of tungsten, the primary material needed for tungsten carbide. Large reserves of tungsten can be found in certain countries such as Bolivia, Canada and the United States. Today, around 30,000 tons of tungsten carbide are produced annually throughout the world. Only 10 tons per year were being manufactured in the 1930's when it was first gaining widespread use.
 
Tungsten itself was discovered in the later 18th century, however, widespread use of tungsten carbide did not begin until the early 1920's. More useful applications were discovered in the 1930's when tungsten carbide was used in the milling and cutting of cast iron.
 
 
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The Uses of Tungsten Carbide Powder

Category: Tungsten Information
Published on 10 September 2013

Tungsten carbide powder is commonly used for hardfacing metals. Hardfacing is the process in which a tougher, harder material is applied to a softer base metal. Tungsten carbide improves the wear-resistant properties of a base metal. It is applied to mining equipment parts (shovel teeth, heel plates, bucket wheel excavator teeth, wear parts, crushing hammers, cutter drums and longwall miners), mineral processing equipment (hammers, chutes, pulverizing and grinding parts), earth-moving and construction equipment (grader blades, cutting edges, augers, trencher teeth, ground engaging tools and tunneling equipment), drilling tools, processing equipment and agriculture equipment (subsoilers, discs and injectors).

 

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Tungsten Carbide Powder is Used to Manufacture Tools Used in the Diamond Industry

Category: Tungsten Information
Published on 10 September 2013
Tungsten carbide powder is used to manufacture tools used in the diamond industry, such as segments, grinding wheels and scape. According to the book "Exploring Advanced Manufacturing Technologies," tungsten carbide diamond cutting tools are made by sintering diamond powder to a tungsten carbide base and then cutting them into various shapes. These shapes are inserted or brazed in tool bodies and then ground to finished shape and sizes. Diamond tools are used to cut hard materials, such as stone, glass and porcelain.
 
 
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