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 carbide includes three types of tungsten-cobalt (YG), tungsten-cobalt-titanium (YT) and rare carbide (YW). They have their own advantages and disadvantages. The main components are tungsten carbide (WC) and titanium carbide ( Commonly used metal bonding phases such as Tic) and niobium carbide (NbC) are Co. Titanium carbide-based cemented carbide is a cemented carbide with Tic as the main component, and the commonly used metal bonding phases are Mo and Ni.

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