High Chrome Grinding Ball
Brand ZW
Product origin Shandong, China
Delivery time 7 days
Supply capacity 6000 tons per month
Cast steel balls have the advantages of high temperature resistance and little difference in internal and external hardness, especially suitable for the cement industry. At present, most of the cement industry chooses cast steel balls.
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The chromium content of high chromium balls is greater than or equal to 10.0%. The carbon content is between 1.80% and 3.20%. According to national standards, the hardness of high chromium balls must not be less than 58hrc, and the impact value should be greater than or equal to 3.0j/cm2. To achieve this hardness, high chromium balls must be quenched and tempered at high temperature. At present, there are two methods for quenching high chromium balls in China, including oil quenching and wind quenching. If the test hardness of the high chromium ball is lower than 54HRC, it means that it has not been quenched.
If the surface of the steel ball is black and red, it proves that the steel ball has been tempered at high temperature. If the surface of the grinding ball is still metallic, we can judge that the steel ball has not been tempered at high temperature.
Applied Filed
Cast steel balls are usually used in various cement plants, chemical plants, power plants, quartz sand plants, silica sand plants, etc. for large-scale mining.
Production process
Raw material inspection -- proportioning material -- intermediate frequency furnace heating and smelting -- steel mold pouring -- quenching treatment -- tempering treatment -- testing -- packaging
