The quality of the grinding media steel ball affects both the productivity and the ball consumption, which in turn affects the cost of the grinding media.
Therefore, it is wrong to simply pursue high hardness and low unit consumption. High hardness and low unit consumption are not equal to low cost. Balls with high hardness and low unit consumption are often very expensive.High hardness does not necessarily increase productivity, or even decline. Only high productivity can reduce the unit consumption indicators.
Therefore, the primary criterion for selecting a grinding media steel ball should be the high productivity of the mill and the low cost of the grinding media.
Only high productivity and low grinding media costs can have good economic benefits.
The density of the grinding medium steel ball is affected by three factors, firstly the material influence, steel, cast iron, alloy steel, etc. The density of different materials is different, the density of steel is larger than that of cast iron, and the density and content of alloy steel are different according to the main alloying elements.
The influence of the manufacturing method of the grinding medium steel ball, the rolling and forging steel balls are dense in structure, so the density is large, and the microstructure of the cast steel ball, cast iron ball or cast alloy ball is not dense, and even there are pores therein and the density is smaller.
There is also the influence of the metallographic structure of the steel ball. The density of different crystal structures such as martensite, austenite, bainite and ferrite is also different, which also affects the crystal fineness.