Tungsten carbide inserts are mainly made of solid carbide as the matrix and are finished through multiple production processes.
Tungsten carbide, also known as tungsten steel, is made of high-quality tungsten carbide + cobalt powder mixed by formula ratio by pressing and sintering, with high hardness, high strength, high wear resistance and high elastic modulus, belonging to the powder metallurgy industry. Cemented carbide as the tooth of modern industry, cemented carbide tools play a fundamental role in promoting the development of the manufacturing industry.
Cemented carbide is distinguished according to the grain size, which can be divided into ordinary cemented carbide, fine-grained cemented carbide, subfine-grained cemented carbide, ultra-fine-grained cemented carbide, and the newly launched double-grained cemented carbide. According to the main chemical composition, it can be divided into tungsten carbide-based cemented carbide and titanium carbide-based cemented carbide. Tungsten carbide-based cemented carbide includes tungsten cobalt (YG), tungsten cobalt titanium (YT) and added rare carbide (YW), which have their own advantages and disadvantages, and the main component is tungsten carbide (WC), titanium carbide (Tic), niobium carbide (NbC) and other commonly used metal bonding phases are 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. Tungsten carbide has the characteristics of high hardness (86~93HRA, equivalent to 69~81HRC), second only to diamond, good hot hardness (up to 900~1000°C, 60HRC), high flexural strength (MPa5100), good impact toughness and high corrosion resistance, etc.
