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2023

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01

Manufacture of cemented carbide materials

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Cemented carbide is usually called tungsten diamond alloy. In fact, it is a metal carbide, a composite alloy made of tungsten carbide. (or tungsten carbide and titanium carbide)+sintered adhesive including diamond, nickel and platinum. The drill bit is the most commonly used adhesive. The drill bit increases the toughness of cemented carbide. However, the hardness of cemented carbide decreases with the increase of the number of bits. Cemented carbide bits are not suitable for use in acid because the cemented carbide bit adhesive is not resistant to pure water corrosion and will start to oxidize at 600 ° C. Carbide is an adhesive in the form of carbide. Because of its excellent chemical stability, it can be used as a strong oxidizing medium. However, this type of cemented carbide is expensive. Some people will use platinum as an adhesive when using tungsten carbide to seal liquid oxygen and nitric acid. And its performance seems particularly good.
The cemented carbide used for mechanical seal is smaller than the traditional cemented carbide. This is because cemented carbide used for cutting, drawing, drawing and stamping is not suitable for mechanical seals. Cemented carbide is divided into tungsten (YG) bit and diamond tungsten (YT) bit in China. YG cemented carbide is used for mechanical seals, and YG commonly uses YG6, YG8 and YG15.
Widely used in petroleum, metallurgy, chemical industry and mining

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