Plasticizing quality and yield of injection molding products are mainly affected by two aspects: first, the influence of injection molding process conditions; and two, the influence of screw structural parameters. 

Tungsten powder mixed with carbon powder: the quality of WC powder depends on the uniformity of the mixing of tungsten powder with carbon black. If the material is mixed unevenly, the tungsten carbide powder will appear black core and layered.

The pressure loss of the material in the barrel is mainly reflected in two aspects: the internal friction of the material and the external friction of the cylinder wall and the die cavity and the compaction material. 

Tungsten silicate is a tungsten heteropoly acid, its appearance is white or pale yellow deliquescent crystal, soluble in water and alcohol, soluble in crystal water itself.