Tungsten crucible is a kind of important deep processing, high value-added products, in sapphire crystal growth, quartz glass production, rare earth smelting, vacuum evaporation and other industries have been widely used.Tungsten crucible is a kind of important deep processing, high value-added products, in sapphire crystal growth, quartz glass production, rare earth smelting, vacuum evaporation and other industries have been widely used.The quality level of tungsten crucible prepared by isostatic pressure-sintering method is close to that in domestic and foreign countries (table 1), but the research on the density uniformity of tungsten crucible produced by this process is little.

In practical use, the uniformity of the density of each part of the tungsten crucible is very important, because the uniformity of the density affects the uniformity of the mechanical properties of the tungsten crucible and directly affects the actual use effect. Therefore, the research on the uniformity of tungsten crucible density and the analysis of related influencing factors are beneficial to the practical use of tungsten crucible.