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International Exhibition of Powder Metallurgy, Cemented Carbide and Advanced Ceramics

wallpapers News 2021-01-27
"Shanghai International Powder Metallurgy, Cemented Carbide and Advanced Ceramics Exhibition" is dedicated to displaying and promoting cutting-edge technologies and products at home and abroad, and builds a high-quality platform for technical exchanges and business cooperation for upstream and downstream practitioners. 

China's cemented carbide demand outlook.
Cemented carbide is a high-hardness alloy material composed of tungsten and cobalt. It is called "industrial teeth" because of its high hardness, good wear resistance, and strong corrosion resistance. It is mainly used as cutting tools, geological mining tools and resistant Grinding tools are used in mining machinery manufacturing, oil exploration, automobile manufacturing and aerospace and other fields. According to data from the US Geological Survey, my country's tungsten ore resource reserves and tungsten production rank first in the world. Tungsten is an important part of cemented carbide raw materials, and more than 80% tungsten is used in the synthesis of cemented carbide. China's cemented carbide supply is abundant, and the industry concentration is high. Since cemented carbide is mostly used in traditional manufacturing industries, the cemented carbide industry is greatly affected by the country's macroeconomics. China's cemented carbide demand will show an increasing trend in the next five years. In 2025, China's cemented carbide demand is expected to reach 74,000 tons.
Cemented carbide features
The first is high hardness, wear-resistance and red hardness. The hardness of cemented carbide at room temperature can reach 86-93HRa, which is equivalent to 69-81HRC. It can maintain high hardness at 900~1000℃ and has excellent wear resistance. Compared with high-speed tool steel, the cutting speed can be 4 to 7 times higher, the service life is 5 to 80 times longer, and it can cut hard materials with a hardness of up to 50HRC. The second is the high strength and elastic modulus. The next step is the good corrosion resistance and oxidation resistance. Generally, it has good resistance to atmospheric, acid, alkali and other corrosion, and is not easy to oxidize. The last point is that the shaped products are no longer processed and reground. Due to the high hardness and brittleness of cemented carbide, it is no longer necessary to cut or regrind after powder metallurgy forming and sintering. When special reprocessing is required, only electrical processing such as EDM, wire cutting, electrolytic grinding or special grinding wheel grinding can be used. Cut. Products of a certain specification usually made of cemented carbide are brazed, bonded or mechanically clamped on the cutter body or mould body for use. 

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