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The first cemented carbide developed was tungsten carbide (introduced in 1927) which uses tungsten carbide particles held together by a cobalt metal binder. Since then, other cemented carbides have been developed, such as titanium carbide, which is better suited for cutting steel, and tantalum carbide, which is tougher than tungsten carbide. [1]
Cementite (or iron carbide) is a compound of iron and carbon, more precisely an intermediate transition metal carbide with the formula Fe 3 C. By weight, it is 6.67% carbon and 93.3% iron. By weight, it is 6.67% carbon and 93.3% iron.
It is a manufacturer of cement products, copper and aluminum products, cemented carbide tools, and electronic materials. [3] It is one of the core companies of Mitsubishi Group. The company is listed on the Tokyo Stock Exchange and the Osaka Securities Exchange, and is a constituent of the Nikkei 225 stock market index. [4]
Kennametal, a metal-working and tool company based in Latrobe, PA, USA, developed the first titanium carbide cermet with a 19 megapascals (2,800 psi) and 100-hour stress-to-rupture strength at 980 °C. Jet engines operate at this temperature and further research was invested on using these materials for components.
Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery, engineering facilities, [8] molding blocks, [9] cutting tools, chisels, abrasives, armor ...
As of 4 January 2017, Zhuzhou Times New Material Technology was absolutely controlled (>50%) by the state-owned CRRC Group via its flagship company CRRC [nb 1] and other unlisted subsidiaries. [ nb 2 ] Moreover, other subsidiaries of the State Council : Central Huijin Investment and National Council for Social Security Fund (as investment ...
Zhuzhou High-Tech Industrial Development Zone (Chinese: 株洲高新技术产业开发区; abbr: ZZHTZ) is a national high-tech industrial zone in Zhuzhou, Hunan ...
In 2000s, CNR, CSR, Zhuzhou Times New Material Technology (2002) [5] and Zhuzhou CSR Times Electric (2006) [4] were spin-off from the groups as listed companies.