Tungsten Carbide
Tungsten carbide is a dense, metallike substance, light gray with a bluish tinge, that decomposes, rather than melts, at 2,600° C (4,700° F). It is prepared by heating powdered tungsten with carbon black in the presence of hydrogen at 1,400°–1,600° C (2,550°–2,900° F). For fabrication, a process developed in the 1920s is employed: the powdered tungsten carbide is mixed with another powdered metal, usually cobalt, and pressed into the desired shape,then heated to temperatures of 1,400°–1,600° C; the other metal, which melts, wets and partially dissolves the grains of tungsten carbide, thus acting as a binder or cement. The cemented composites of tungsten carbide–cobalt are known by many trade names, including Widia and Carboloy.
CHINATUNGSTEN ONLINE is a special Tungsten carbide manufacturer and exporter in the past 2 decades, we have supplied nearly all kind of finished and semi-finished tungsten carbide products, e.g. rods, bars, plates, seals, rings, drawing dies, balls, disc cutters, mining tools, buttons, blades, blocks and so on.
For your reference to more detail information of the tungsten carbide, please visit our general site at www.tungsten-carbide.com.cn.
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