Why should graphite be used for the heating chamber of vacuum furnace?

Graphite, generally used at 2200 ℃ in vacuum, volatilizes faster at 2300 ℃ in vacuum, and volatilizes less in protective atmosphere (inert gas) due to pressure factors, so it can be used at 2400 ℃& nbsp;& nbsp;

In general, the industry divides graphite vacuum furnaces into three categories according to temperature: low-temperature graphite vacuum furnace, medium temperature graphite vacuum furnace and high-temperature graphite vacuum furnace.
Low temperature graphite vacuum furnace: furnace with working temperature lower than 1150 ℃; Medium temperature graphite vacuum furnace: furnace with working temperature between 1150 ℃ and 1600 ℃; High temperature graphite vacuum furnace: furnace with working temperature higher than 1600 ℃;
Performance characteristics of common heating body materials of graphite vacuum furnace:
Material selection of graphite vacuum furnace liner (heater and reflection screen):
There are usually only three kinds of materials for gas protection or graphite vacuum furnace: tungsten, tantalum and graphite;
Graphite: the heating graphite used in the vacuum furnace should be high-purity, high-strength, isostatic pressure forming isotropic three high graphite, otherwise it will not get reliable high-temperature performance, electrical performance and service life; Domestic graphite vacuum furnace adopts domestic graphite furnace type, mostly medium and low temperature graphite vacuum furnace with low requirements. It is believed that with the improvement of the quality of domestic graphite, graphite will be widely used in high-temperature furnaces.
As the low-temperature cooling speed of graphite vacuum furnace is slow, it is suggested to adopt low-temperature and fast cooling measures to improve production efficiency. Low temperature rapid cooling can be carried out in furnace circulation and out of furnace circulation, and inert gas is generally used as cooling gas.

Which company is HuaSu vacuum furnace graphite accessories produced& nbsp; & nbsp; Huarui and HuaSu vacuum furnace graphite accessories are manufactured by; Dongguan Jiecheng graphite products Co., Ltd