What are the graphite in the application of vacuum furnace

What are the graphite in the application of vacuum furnace

Normally, the industry could be divided into: graphite vacuum furnace according to the temperature low temperature graphite graphite temperature vacuum in vacuum furnace, furnace, high temperature vacuum furnace.
Low temperature vacuum furnace: working temperature below 1150 ℃ oven; In the vacuum furnace temperature graphite: working temperature at 1150 ℃ to 1600 ℃ oven; High temperature vacuum furnace: working temperature higher than 1600 ℃ oven;
Graphite materials commonly used vacuum furnace heating body features:
Graphite, vacuum is often used to 2200 ℃, 2300 ℃ vacuum significantly increased evaporation, maintain the atmosphere (inert gas) for pressure elements in evaporation is abate, can be used in the 2400 ℃;
Graphite furnace vacuum furnace (heating body, the reflective screen) material:
Gas maintenance or graphite material of vacuum furnace, tungsten, tantalum, graphite usually are three;
Heating graphite, graphite is used in vacuum furnace should be high purity, high strength, such as static pressure molding isotropic three high graphite, otherwise will not be strong high temperature function and electrical function and service life; Domestic graphite vacuum furnace to choose domestic graphite furnace type, more for demand is not high in the low temperature vacuum furnace. Trust, follow the quality improvement of domestic graphite progress, in the high temperature furnace, graphite will be widely used.
Because the vacuum furnace temperature cooling speed is slow, low temperature fast cooling is advocated measures, advance production efficiency. Low temperature fast circulation, circulation outside the furnace can choose furnace, two methods, the cooling gas usually choose an inert gas.