What is the application of graphite vacuum furnace
Under normal circumstances, the industry will be divided into graphite vacuum furnace temperature: low temperature
graphite vacuum furnace, medium temperature
graphite vacuum furnace, high temperature
graphite vacuum furnace three categories.
Low temperature
graphite vacuum furnace: furnace with working temperature below 1150 centigrade; medium temperature
graphite vacuum furnace: furnace with working temperature from 1150 to 1600 C;
high temperature
graphite vacuum furnace: furnace with working temperature above 1600 C; The performance characteristics of commonly used heating body materials in graphite vacuum furnace are: Graphite, vacuum is generally used at 2200 degrees C, vacuum 2300 C obviously volatilization faster, protection atmosphere (inert gas) due to the pressure factor volatilization weakened, can be used at 2400 degrees; Material selection of graphite vacuum furnace (heating body and reflecting screen): Gas protection or
graphite vacuum furnace material selection, usually only tungsten, tantalum and graphite three kinds; Graphite used in vacuum furnace heating graphite should be high purity, high strength, isostatic pressure forming isotropic three high graphite, otherwise it will not get reliable high temperature performance, electrical properties and service life. Domestic graphite vacuum furnace with domestic graphite furnace type, mostly low and medium low temperature graphite vacuum furnace. It is believed that with the improvement of the quality of domestic graphite, graphite will be widely applied in high temperature furnace. Due to the slow cooling rate of
graphite vacuum furnace, it is suggested to adopt low temperature quick cooling measures to improve production efficiency. Low temperature rapid cooling can be carried out in two ways: inside furnace circulation and outside furnace circulation.
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