What is grinding ball heat treatment After grinding balls are manufactured in casting ball metal mold or automatic grinding ball molding line , the next most important process is heat treatment. Grinding ball heat treatment includes quenching and tempering. Grinding ball heat treatment is used to quenching and tempering for casting balls. Why grinding ball need to heat treatment furnace For casting steel ball, the most important is the balls quality. According to the casting production technology, most users are using two ways to control grinding balls quality. First, they must control well the chemical composition, this step is very easy to come true. Second, the most important is by heat treatment furnace. The main purpose of grinding ball heat treatment furnace is to improve grinding balls quality, change its internal performance and improve its harness. Quenching process is cooling grinding balls at a rapid rate from a predetermined high temperature. This process