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球磨机用的磨球通常用普通铸铁、白口铸铁和锻钢来生产。因普通铸铁和锻钢的硬度低,难以抵抗物料中硬质点的切削作用;普通白口铸铁虽然硬度高但脆性大,难以承受小能量多次冲击的表面疲劳剥落作用。因此用以上材质生产的磨球消耗量很大。以电力工业为例,每磨制一吨煤粉消耗磨球250～500克,全国火电厂磨煤用磨球达八万吨左右,因此研制一种
Ball mill ball is usually used ordinary cast iron, white cast iron and forged steel to produce. Due to the low hardness of ordinary cast iron and forged steel, it is hard to resist the cutting action of the hard points in the material. Although ordinary white cast iron has a high hardness but a large brittleness, it is difficult to withstand the surface fatigue spalling caused by multiple impacts of small energy. Therefore, the production of the above ball mill consumes a lot. In the electric power industry, for example, each mill produces a ton of pulverized coal consumption of 250 to 500 grams of grinding balls, the country’s thermal power mill grinding ball with a ball of 80,000 tons, so to develop a