There are big different between different kinds of tungsten carbide in the hardness, toughness and cladding performance. Mixed the tungsten powder with carbon black by special craft. Then carbonized at high temperature carbonization furnace to obtain the single crystal WC. At the same time, iron group metals with good infiltration and the content of the single crystal WC can not be too high. Otherwise it easy to bridging and especially in the process of laser cladding.
Tungsten carbide with high hardness, high wear resistance and good toughness are also called the industrial teeth. It is widely used in the fields of drilling tools, cutting tools, precision mold, mining tools, print needle and military penetrator.
Cast tungsten carbide is using WC powder and tungsten metal powder as raw material. Preparation of mixture into the graphite boat according to the carbon content requirements. Melted in the furnace about 3000 ℃ and supplementary carburizing. The melt casting made into strips and made strip casting crushing and grading. Then you will get various size range of cast tungsten carbide. But cast tungsten carbide granules shape is irregular shape, flake and acicular. And it will work under impact state. Because it is easy to broken and be damaged. At the same time, its irregular surface morphology is easy to produce stress concentration and cracks.