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Ore hardness and wear-resistant steel ball hardness of a reasonable match

In the concentrator mill production process, there are many factors affecting the improvement of grinding efficiency. The quality of the wear-resistant steel ball is one of the main factors. The wear resistance of the wear-resistant steel ball depends on the surface hardness and the overall hardness. The crack resistance of steel ball depends on the impact toughness.

Facts have proved that the higher the hardness of wear-resistant steel ball impact toughness will be reduced. Mineral hardness and wear-resistant steel ball hardness can only be matched to improve the grinding efficiency, on the contrary, will to varying degrees affect the improvement of grinding efficiency. Therefore, according to the hardness of the ore, the correct choice of steel ball is of great significance.

The importance of matching the mineral hardness with the wear-resistant steel ball hardness

Ore hardness can not be changed, only to adjust the wear-resistant steel ball hardness to meet the needs of grinding production.

Usually steel ball hardness is higher, the higher the wear resistance, the material loss is low. Wear of wear-resistant steel ball not only with its own hardness, but also with the hardness of the ore, the higher the hardness of the steel ball the greater the brittleness, the smaller the impact toughness, the ball mill work in operation, wear-resistant steel ball and wear-resistant steel ball, wear Steel ball impact with the mill liner, the brittle large wear-resistant steel ball most likely to appear large flaking phenomenon, resulting in steel ball lost its round, round ball less force than the ball force, easy to rupture or broken. Fragmentation balls are most likely to slip during grinding and can not roll like steel balls of uniform roundness and produce considerable impact to grind and smash ore. This shows that, depending on the hardness of the ore to choose the appropriate hardness of the steel ball is very important.

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