Cemented carbide is a hard compound and refractory metal bonding metal through powder metallurgy technology made of an alloy material.

Cemented carbide with high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and a series of excellent properties, especially its high hardness and wear resistance, even at 500 ℃ temperature basic remains the same, there are still very high hardness at 1000 ℃.

Hard alloy are widely used as a cutting tool material, such as turning, milling, planing tool, drilling, boring cutter, etc., used for cutting cast iron, non-ferrous metal, plastic, chemical fiber, graphite, glass, stone and ordinary steel, can also be used for cutting heat resistant steel, stainless steel, high manganese steel, tool steel and other hard processing material.

advantages

Cemented carbide with high hardness, strength, abrasion resistance and corrosion resistance, known as the "teeth" industry, used in the manufacture of cutting tool, cutting tool, cobalt and wear-resistant parts, widely used in the military-industrial complex, aviation, machinery, metallurgy, oil drilling, mining tools, electronic communications, construction and other fields, along with the development of downstream industries, carbide increasing market demand. And the future of new and high technology weapons and equipment manufacturing, cutting-edge science and technology progress and the rapid development of nuclear energy, will improve the stability of high technology content and high quality of hard alloy products demand.

use

In 1923, Germany le shi into tungsten carbide powder, adding 10% ~ 20% of the cobalt adhesive, invented new tungsten carbide and cobalt alloy, hardness is second only to diamond, it is hard alloy artificial made the first one in the world. Made of this alloy tool cutting steel, the blade will soon wear, even the edge split. In 1929 the United States of schwarzkopf in original ingredients added to a certain amount of tungsten carbide and titanium carbide compound carbides, to improve the performance of the cutting tool steel. This is another achievement in the history of the development of cemented carbide.

Carbide can also be used to make the drilling tools and mining tools, drilling tools, measuring gage, wear-resistant parts, metal abrasive, cylinder liner, precision bearings, nozzle, hardware mold (such as wire drawing die, bolt moulds, nut moulds, as well as a variety of fasteners, mold, excellent performance of cemented carbide gradually replaced the previous steel mold).

Over the past twenty years, coated cemented carbide also appeared. Sweden in 1969 the successful development of titanium carbide coating tool, cutting tool matrix is cobalt tungsten titanium carbide or cobalt tungsten carbide, titanium carbide coating on the surface of the thickness of just a few microns, but compared with the same brand of alloy cutting tools, 3 times longer service life, cutting speed increased by 25% ~ 50%. Have appeared in the 1970 s the fourth generation of coating tools, can be used for cutting hard material to processing.

What is sintering of hard alloy?

Cemented carbide is this kind of or many kinds of refractory metal carbides and adhesive metal, metal material is made by powder metallurgy method. SGS hard alloy cutter