Graphite crucible for copper evaporation, vacuum aluminizing crucible and copper plating crucible

Industrial technical characteristics of graphite crucible:

Its melting point is 3850 ± 50 ℃ and its boiling point is 4250 ℃

2. Special thermal shock resistance. Graphite has good thermal shock resistance, that is, when the temperature changes suddenly, the coefficient of thermal expansion is small, so it has good thermal stability, and will not crack when the temperature changes rapidly

3. Thermal conductivity and conductivity: graphite has good thermal conductivity and conductivity. Compared with ordinary materials, its thermal conductivity is quite high. It is 4 times higher than stainless steel, 2 times higher than carbon steel, and 100 times higher than ordinary nonmetallic materials

4. Lubricity: the lubrication performance of graphite is similar to that of molybdenum disulfide, and the friction coefficient is less than 0.1. The larger the scale is, the smaller the friction coefficient is, the better the lubrication performance is

5. Chemical stability: graphite has good chemical stability at room temperature. It can resist acid, alkali and organic solvent corrosion

6. Wide application: it is used for smelting alloy tool steel and nonferrous metals and alloys