一、概论为满足科学技术发展的需要,电工钢生产要求提供其成分如表1所列的高纯度硅铁(暂称为特殊硅铁特1和特2)。普通75%硅铁的生产,是在矿热炉内进行的。在冶炼过程中,炉料中各元素不同程 I. Introduction In order to meet the needs of the development of science and technology, electrical steel production requires the provision of its composition listed in Table 1 of high-purity ferrosilicon (tentatively called special ferrosilicon 1 and special 2). Ordinary 75% ferrosilicon production, is carried out in the submerged arc furnace. In the smelting process, the charge in the different elements of the process