1. SincerityGraphite hearthHigh temperature resistance: its melting point is 3850 ℃± 50 ℃, and its boiling point is 4250 ℃. It has the lowest loss of graphite products at 7000 ℃ ultra-high temperature arc for 10s, with a graphite loss of 0.8% by weight. It can be seen that the high temperature resistance of graphite hearth is very prominent.
2. Special thermal shock resistance: Graphite hearth 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 cracks will not occur when the temperature changes rapidly.
3. Thermal conductivity and conductivity: Graphite hearth 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 general non-metal.
4. Lubricity: the lubricity of graphite furnace bed is similar to molybdenum disulfide, and the friction coefficient is less than 0.1. Its lubricity varies with the scale size. The larger the scale, the smaller the friction coefficient, and the better the lubricity.
5. Chemical stability: graphite rod has good chemical stability at normal temperature, and can resist acid, alkali and organic solvent corrosion.

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Contact: Li Sheng