Cemented carbide wear parts have a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance, especially its high hardness and wear resistance, even at a temperature of 500 ℃. Remaining unchanged, there is still a high hardness at 1000 °C. Carbide is widely used as tool material, such as turning tools, milling cutters, planers, drills, boring tools, etc., for cutting cast iron, non-ferrous metals, plastics, chemical fibers, graphite, glass, stone and ordinary steel, and can also be used for cutting Difficult-to-machine materials such as heat-resistant steel, stainless steel, high manganese steel, tool steel, etc. The cutting speed of new carbide tools is now hundreds of times that of carbon steel.
Carbide can be used to make rock drilling tools, mining tools, drilling tools, measuring tools, wear-resistant parts, metal molds, cylinder liners, precision bearings, nozzles, etc.
Coated cemented carbides have also been around for the last two decades. In 1969, Sweden successfully developed a titanium carbide Xu layer tool. The base of the tool is tungsten-titanium-cobalt cemented carbide or tungsten-cobalt cemented carbide. The thickness of the titanium carbide coating on the surface is only a few microns, but compared with the alloy mold of the same brand, The service life is extended by 3 times, and the cutting speed is increased by 25% to 50%. In the 1970s, a fourth generation of coated tools appeared for cutting difficult-to-machine materials.
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