الوصف

skew rolling mill is widely used to produce high quality Hot rolling grinding steel balls, which is mainly used in the ball mill for Mining ,cement plant, Power station,and other grinding industries, which is used to produce grinding balls Dia *0mm—**0mm.

The casting ball Production shortcomings:
1. The essence of pig iron casting ball, adding a large quantity of (****8%) chromium, to achieve the requirements of the milling ball.
2. The tissue of casting ball is loose, coarse grains, the relatively poor wear resistance, impact toughness(Typically **7J/cm2), the broken rate is at 3%.
3. High energy consumption, pollution, labor intensity, low labor productivity.
5. High cost of raw materials, high wage costs, the ball especially F*0mm, the cost is higher.
 
Compared with casting ball, the rolling process of  hot-rolled steel balls and the forging process of forged steel balls are new technology and the breakthrough in milling ball manufacturing technology, which is gradually substitute casting ball, the hot-rolled steel ball and forged steel ball have the following characteristics:
 
 

1. All the advantages of the hot-rolled steel ball with a steel quality by heat treatment after milling ball.
2. High production efficiency, large output, high rolling ball production mechanization and automation, production processes without manual operation.
3. Stable quality, good hardness, good hardenability, dense microstructure, fine grain, good abrasion resistance, the abrasion of hot-rolled steel ball is half of casting ball, impact toughness up to****5J/cm2, crushing rate of is less than 1%.
4. Low energy consumption, no pollution, low labor intensity, lower production costs, in the long run, casting ball will inevitably be replaced by rolling ball and steel ball.