The Role of Tungsten Carbide in Stone Carving Industry
- Details
- Category: Tungsten Information
- Published on Thursday, 26 October 2017 22:17
Tungsten carbide is an important raw material for cemented carbides. It has good heat resistance and high hardness and wear resistance at high temperature of 1000 °C.
Therefore, the grinding tools or tools in stone carving industry often also add some tungsten carbide ingredients.
In the stone carving industry, stone carving is a very fine technology, handicrafts grinding surface finish is directly dependent on the grinding block diamond grinding tools with the hardness of metal bond. Granite is a hard rock, mainly composed of quartz, feldspar and mica, brittle large grinding block quality grinding effect is poor, easy to make pieces of the collapse of the workpiece, thus losing the handicrafts beautiful, resulting in economic losses.
Practice has proved that adding a certain amount of metal bond in WC can improve the disc matrix hardness and wear resistance, drying nodes and tungsten carbide WC melt, Fe ten WC as matrix phase, solid phase, so a good self sharpening, wear and sharp, can adapt to the high hardness of granite. Diamond abrasive or cutting tool uses 40/50, using domestic JR1, without adding tungsten carbide binder, abrasive is blunt, grinding, sharpness is poor, the workpiece grinding prone to break angle, resulting in waste. After adding 18% of the carbonized powder metal bond, the grinding tool becomes wear-resisting and sharp, and can adapt to the granite with high hardness and not easy to break.
Therefore, adding a certain amount of tungsten carbide in the diamond grinding and metal bond can improve the quality of the grinding block and obtain satisfactory results and the best economic benefits.
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