The main factors affecting the sintering density of tungsten crucibles are three aspects: raw materials, processes, and equipment. Specifically, for single-piece crucibles, the production process is the main factor affecting the uniformity of tungsten crucible density.

During the sintering process of the crucible, the thickness and load bearing of various locations will greatly affect the density distribution of the product after sintering. The thicker the thickness, the more difficult it is to reduce and the more difficult it is to sinter. The lower part of the crucible has a reduced density.