The artificial graphite hot pressing die has the following advantages in the pressure sintering of high-quality alloy
If the pressing temperature is raised to 1350-1450 ℃, the required unit pressure can be reduced to 1 / 10 of the cold pressing pressure;
The pressure and heating are carried out in the same process, and the compact sinter can be obtained after a short time of sintering, which greatly reduces the cost.
Under high temperature and high pressure, the advantage of using artificial graphite material have a distinct advantage compared with other materials. Because the coefficient of linear expansion of artificial graphite material is small, the shape and size stability of products produced by it are very high.
Because the hot pressing temperature is high and the pressure is high, the artificial graphite material with high strength and high density should be selected.