Compared with conventional tools, carbide tools exhibit significant advantages, including high hardness and strength, excellent red hardness, wear resistance, toughness, heat resistance, and corrosion resistance. What is particularly striking is that even at a high temperature of 500°C, the hardness and wear resistance of carbide tools remain stable; and at 1000°C, its hardness is still quite high. These excellent properties are attributed to the unique properties of WC powder.
Tungsten carbide powder is a black hexagonal crystal powder with a metallic luster. Its melting point is as high as 2870°C and its boiling point is as high as 6000°C. Its hardness is comparable to diamond and it has good electrical and thermal conductivity. At normal temperature, the relative density of WC powder is about 15.63g/cm³, and it is insoluble in water, hydrochloric acid and sulfuric acid, but can be easily dissolved in mixed acids such as nitric acid and hydrofluoric acid.
The key raw material for manufacturing tungsten carbide powder is tungsten powder. In order to ensure the quality of cemented carbide tools, there are strict requirements for the purity, particle size and particle size distribution of tungsten powder. Next, the main introduction is a simple method that can prepare fine and evenly distributed tungsten powder: First, put the blue tungsten or yellow tungsten powder and deionized water into a ball mill for grinding, and the ground material is Screen the slurry to obtain the slurry; then, mix the slurry with blue tungsten or yellow tungsten powder according to a certain proportion, and then use the screen to screen the mixture and perform granulation treatment; finally, the granulation is hydrogenated After reduction treatment, fine tungsten powder can be obtained.
