红透山选矿厂所使用的铁球,系自制的稀土镁中锰球墨铸铁球,这种铁球比普通铸铁球质量好得多,但为了改善其冲击韧性、降低破碎率,以进一步提高它的质量,应用优选法对原料中的硅、锰两种元素的配入量进行选择。首先,固定稀土镁、孕育硅铁及锰的配料量, The iron pellets used by Hongtoushan concentrator are homemade rare earth magnesium manganese nodular cast iron balls of much better quality than ordinary cast iron balls but in order to improve their impact toughness and reduce the rate of fragmentation to further enhance it Of the quality, the application of the preferred method of raw materials in silicon, manganese two elements of the amount of dosing. First, the fixed rare earth magnesium, ferrosilicon and manganese in the amount of ingredients,