试验室测定数据表明,淬火铸铁球(以下简称淬火球)与普通白口铸铁球(以下简称普通铸球)相比,淬火球从表层至心部均具有较高的硬度HRC40—50,良好的韧性及均匀的显微结构。由此判断淬火球应比普通铸球耐磨性高,单耗指标低,而且淬火球在磨机中不会出现或很少出现碎裂现象,因此磨矿效率只会上升,不会下降。 Laboratory test data show that hardened cast iron ball (hereinafter referred to as the quenching ball) and ordinary white cast iron ball (hereinafter referred to as ordinary cast ball), quenching the ball from the surface to the heart have a higher hardness HRC40-50, good Toughness and uniform microstructure. Therefore, the quenched ball should be judged to have better wear resistance than ordinary cast ball, low unit consumption index, and the quenched ball will not appear or be fragmented rarely in the mill. Therefore, the grinding efficiency will only increase and will not decrease.