What factors affect the density of stainless steel balls?1
The density of stainless steel balls is affected by three factors: material, steel, cast iron, alloy steel, etc. The density of different materials is different, and the density of steel is larger than that of cast iron, alloy Steel varies according to the density and content of main alloy elements. The influence of the manufacturing method of stainless steel balls, the rolled and forged stainless steel balls have dense structure, so the density is high, the cast stainless steel balls, cast iron balls or cast alloy balls are not very dense, and even have pores, therefore, the density is smaller.
The influence of metallographic structure of stainless steel balls, the density of martensite, austenite, bainite, ferrite and other different crystal structures are also different, and the crystal fineness is also affected. High hardness of stainless steel balls is unfavorable to grinding. When choosing stainless steel balls, two problems are often ignored: stainless steel balls are not as hard as possible, but have their appropriate hardness values; The density of stainless steel balls is also a problem that cannot be ignored. Regarding the influence of hardness, generally speaking, as the hardness increases, as long as no breakage occurs, the unit consumption of stainless steel balls decreases; Moreover, the deformation of the sphere is small, the deformation of the sphere is small in crushing, the energy can be more used for crushing ore particles, and the productivity of the mill can be increased.
but the increase in hardness of stainless steel balls can only be moderate, with an appropriate range, not as hard as possible. If only the ball consumption is considered, the higher the hardness, the lower the consumption. However, for the mill productivity, the productivity increases with the increase of stainless steel ball hardness within a certain range, but when the hardness exceeds a certain range, it will adversely affect the mill productivity and reduce the mill productivity.
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