According to the grain size, cemented carbide can be divided into ordinary cemented carbide, fine-grained cemented carbide and ultra-fine-grained cemented carbide. According to the main chemical composition, cemented carbide can be divided into tungsten carbide-based cemented carbide and titanium carbide-based cemented carbide. Tungsten carbide-based cemented carbides include tungsten-cobalt (YG), tungsten-cobalt-titanium (YT) and added rare carbides (YW). The commonly used metal bonding phase such as Tic) and niobium carbide (NbC) is Co. Titanium carbide-based cemented carbide is a cemented carbide with Tic as the main component, and the commonly used metal bonding phases Mo and Ni.

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