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steel ball forging line

Grinding steel ball is a kind of consumables, as grinding material, mainly used in mines, power plants, cement plants, steel mills, silica sand plant, coal chemical etc industry and other fields, the annual consumption of steel ball is 3000-50 million tons per year all over the world, China's consumption is about 300-5 million tons, is a steel ball big market.The production of steel ball is divided into three types: forging steel ball, casting steel ball and hot rolled steel ball.

Forging steel ball
The forging steel ball quality is closely related to the material, impurity or quality of the steel.
Forging steel ball main material: normally use high manganese steel as material (50Mn, 60Mn, 65Mn ), at present wear-resisting property and high chromium ball are equal to 75MnCr material.
Forging steel ball advantages: crushing rate is less than 1%, good wear resistance, low price, high cost performance, but low production efficiency.
Cast steel ball
Chromium alloy is the main component of cast steel ball. Its strength and density are lower than forged steel ball.According to the content of chromium, wear-resistant ball can be divided into the following:
1. Chromium content is 1-3% and hardness HRC>=45.This standard wear - resistant steel ball is called low chromium alloy cast ball.Its performance is applicable to some metallurgical mines, slag and other industries where the requirement of grinding accuracy is not high and the wear consumption is not large.
2. Chromium content is 7%-10% and hardness HRC >= 50 or more are medium chromium alloy casting balls, which are higher than those of multi-alloy steel balls in terms of properties.
3. Chromium content is 10%-14% and hardness HRC>= 58, high chromium alloy casting ball are one kind of wear-resistant ball with high usage rate and good abrasion resistance in cement industry. The application range is relatively wide, but the market gradually declines due to the replacement of forging products due to high price.
4. Chromium content exceeds 14% and the hardness of HRC>= 58.This is a special high chrome steel ball, suitable for the industry with fine grinding and high consumption, of course, its price is also quite high, cost-effective than high chrome ball.
Hot rolled steel ball
Hot rolled steel ball is produced by rotary cutting production line, which has been rising rapidly in recent years. It has high production efficiency, high automation degree, high material utilization rate, stable size and quality of steel ball, and excellent cost performance, but the quality is not as good as forging steel ball.
Steel ball forging - rolling production line
Recently, anyang forging press designed one rolling production line for a steel ball production customer in Anshan, effectively takes into account the good quality of forged steel ball and the high production efficiency of rolled steel ball.Bar shear machine, forging robot give the hot piece to CNC forging hammer forge tobe spherical, closed die forging can ensure forgings forging ratios to ensure the quality of the steel ball, and can greatly improve the production efficiency, then use skew rolling machine roll the forging steel ball , to ensure the ball's roundness and perfect.Generally, the skew rolling mill can only roll the steel ball below 120mm, and there is no upper limit of the steel ball size which can be produced by forging - rolling steel ball technology.

 

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