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根据冲天炉中的冶金还原反应原理,在炉后加入资源丰富、价格低廉的硼矿石,代替硼铁合金,生产大、中型机床硼耐磨铸铁件。
According to the principle of metallurgical reduction in a cupola furnace, boron rich iron ore with low cost is added after the furnace instead of ferroboron to produce boron wear-resistant cast iron parts for large and medium-sized machine tools.