1. Appearance: all are pure white, but the surface of alumina grinding ball is relatively smooth, the surface of alumina packing ball is rough; Alumina grinding ball diameter of more than 30mm is isostatic pressing, there is an indentation on the surface, and packing ball regardless of diameter size, are rolled into the type, so it is a shape.
2 uses: alumina grinding ball is mainly used for grinding materials, and alumina packing ball is used as the reactor catalyst cover support material and tower packing, and can withstand the temperature changes in the production process, its main role is to increase the gas or liquid distribution point, support and protection strength is not high active catalyst. The grinding ball can be used as the filling porcelain ball, but the filling ball cannot be used in the grinding field.
3 technical indicators focus: alumina grinding ball value hardness, density and wear these three indicators, especially wear, directly related to the production cost of customers. The alumina packing ball is mainly used as proppant, so it will pay attention to compressive strength, water absorption, tolerance size, temperature resistance to sharp changes, etc
