How to judge the quality of steel ball?
A material impact, steel ball, iron ball, alloy steel, different material density of different medicines milling ball, steel density than cast iron, alloy steel depends on the density and the content of main alloy elements of different.
2. Effects of two, steel ball manufacturing method: bearing steel ball rolling and forging steel ball and its organization is compact, so the density, cast steel, cast iron ball or casting alloy ball organization is not very dense, even including the stomatal density, so small. Factors affecting the quality of steel ball.
3. Effects of three ball, metallographic organization: martensite, austenite, bainite, ferrite crystal structure under different density is not the same, steel analysis instruments may also have an effect on the crystal fineness.