Comparison Of Wear-resistant Grinding Steel Balls Forged Steel Balls And Cast Steel Balls

(1) The materials are different: the forged ball material is hard steel, and the cast ball material is scrap iron;

(2) The surface of the cast ball has sprues, sand holes and annular bands, while the surface of the forged ball is smooth, and the surface quality seriously affects the deformation of the ball during the grinding process. Because the surface quality of the forged ball is better than that of the cast ball, it is not easy to deform during use.

(3) Cast balls are suitable for mills with a diameter of 1.5-3.8m, while forged balls are suitable for mills with a diameter of 1.5-11m and above.

(4) The impact toughness of the forged ball is greater than 12, while the cast ball is only 3-6, which determines the crushing rate of the forged ball is better than that of the cast ball.

(5) Cast balls are only suitable for dry grinding, while forged balls are inherently resistant to corrosion due to their good genes - high-performance steel, and are suitable for both dry and wet grinding.

Therefore the following conclusions are drawn:

Forged ball > high chromium ball > medium chromium ball > low chromium ball.

Generally speaking, cast balls can be called "heat-resistant" balls, which are suitable for dry grinding. Cast balls are more suitable for cement plants. Forged balls can be called "corrosion-resistant" balls, which are suitable for wet grinding and mineral processing. Forged balls are more suitable, especially For semi-autogenous mills or balls over 100mm, cast balls are easy to break, and the effect of forged balls is much better than that of cast balls.