Extraction: tungsten metal powder and carbon black raw material, by a certain percentage dubbed mixture, the mixture into the graphite boat, placed in carbon tube furnace or a sense of high frequency electric furnace at a temperature carbonization , then by ball milling, screening that was carbide powder.
1 Overview
Tungsten carbide (WC) is the main raw material for the production of carbide, the major domestic manufacturers have Zhuzhou, Zigong, Nanchang, Lushun Carbide plant. Annual production of tungsten carbide powder is mainly for domestic use, and some are exported to Japan, USA, Germany, Italy, France, Sweden and other countries.
2, nature
Dark gray powder, tungsten carbide powder, soluble in a variety of carbides, especially in great solubility in titanium carbide, TiC-WC solid solution is formed.
3, uses
Tungsten wire carbide powder is mainly used for the production of carbide.
4, manufacture
Tungsten metal powder and carbon black raw material, by a certain percentage dubbed mixture, the mixture into the graphite boat, placed in carbon tube furnace or a sense of high frequency electric furnace at a temperature carbonization, and then by milling, screening that was carbide powder
Molybdenum carbide has a high melting point and hardness, good thermal stability and mechanical stability, and excellent corrosion resistance and other characteristics. Molybdenum is a silvery white refractory metal, a melting point of 2615 ℃, density of 10.2 g / cm 3, the expansion coefficient is small, a special tube is almost the same coefficient of expansion of the glass. Molybdenum stable at room temperature is higher than 600 ℃, rapidly oxidized.
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