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Selecting the mineral mill steel ball hardness will have some effect on the effect of the grinding effect, there may be two adverse effects:
1. When the hardness of the steel ball is too high, the ball and the ball Sliding is powerful when contacting each other, does not effectively engage the mineral particles between the ball in the ball, and weaken the grinding effect of mineral particles.
2. Steel ball rebound is serious, resulting in partial energy loss in the rebound, so steel ball energy is not more useful for crushing, so affecting breaking.About the impact of steel ball density on milling, usually, the same size has a large productivity, small productivity with small density. Steel ball density is affected by three aspects:
1. Materials, steel, cast iron, alloy steel, etc., different materials, steel density is larger than cast iron, alloy steel according to major alloy elements The density and content are different.
2. Effects of steel balls, martensite, austenite, bainite, ferrite, etc., different crystal structures, different crystal structures, and effects on crystallization.
3. The impact of the steel ball manufacturing method, rolling and forging steel balls have dense, so that the density is large, cast steel ball, cast iron ball or casting gold ball, etc. Even in which air holes are there, the density will be small.
