Hot rolled steel ball is a new type of rolling technology.
It is a process breakthrough of grinding steel ball manufacturing technology, and it has been gradually replacing the casted ball. The hot rolled steel ball has the following characteristics:
1) Hot rolled steel ball has all the advantages of steel, and been used as high quality grinding balls after heat treatment.
2) High efficiency, large capacity, mechanization of steel ball rolling production, high degree of automation, no need for manual production, and less and less interference of worker factors.
3) Stable quality, high hardness, good hardenability, compact microstructure, small crystal grain, homogeneous steel ball with no deformation, no breaking circle, good wear resistance, impact toughness is as high as 12-35 j/cm2, and the crushing rate is less than 1%.
4) Low energy consumption, no pollution, low labor intensity, low production cost, good formability, small geometric tolerance, and stable quality.
5) The wear rate is low and the service life is long. It is an existing cast iron ball, and the price is reasonable.
6) The steel ball hardness is up to 60 ~ 67 HRC, internal and external hardness is balanced.
7) Impact toughness up to 12~35j/cm3.
8) Large proportion (7.8~7.85 J / cm3).
9) The surface quality of the steel ball is good, and the hardness inside and outside is balanced (hardness difference <5HRC);
10) Low crushing rate, long service life, high ball density, strong impact toughness;