Cemented carbide refers to an alloy material made of refractory metal hard compound (mainly Tungsten Carbide) and bonding metal (mainly Cobalt) through powder metallurgy process.

Cemented carbide has a series of excellent properties such as high hardness, wear resistance, heat resistance, corrosion resistance, strength and toughness. It has high hardness and abrasion resistance, which can remain basically unchanged at 500°C, and still has a high hardness at 1000°C.

The excellent properties of cemented carbide make it very widely used. The main usages are:

1. cutting tools: Cemented carbide can be used as a variety of cutting tools. The amount of cemented carbide for cutting tools in China accounts for about 1/3 of the entire cemented carbide output, of which about 78% are used for welding blade tools, and about 22% for rotary cutters. In addition, there are cutting tools such as solid carbide drill bits, solid carbide small circular saw blades, and solid carbide micro drill bits.

2. geological mining tools: Geological mining tools are also a major use of cemented carbide. Geology cemented carbides account is about 25% of the total cemented carbides in China. They are mainly used for drill bits for percussion drilling, drill bits for geological exploration, DTH drills for mining and oilfield, and percussion drills for the building materials industry. The cemented carbide used for various molds accounts for about 8% of the total cemented carbide production.

3. structure and wear parts: Cemented carbide can be used to manufacture structural parts, such as rotating seal rings, compressor pistons, lathe chucks, grinding machine spindles. It can also be made into wear-resistant parts, like nozzles, guide rails, plungers, tire cleats, snowplow boards, etc.

4. high pressure and high-temperature resistance cavity: The most important use is to produce top hammer for synthetic diamond, pressure cylinder and other products.

5. other uses: Cemented carbide has become more and more widely used, and has been continuously expanded in civilian fields in recent years, such as watch chain case, zipper head of high-end luggage, and cemented carbide trademark.

Cemented carbide is widely used in military industry, aerospace, mechanical processing, metallurgy, petroleum drilling, mining tools, electronic communications, construction and other fields, and is known as the ” teeth of industry“.