甲、前言 过去由于思想上认为我厂的工作母机铸件质量要求较高,利用切屑可能会出大量废品,所以一直不敢试验利用铸铁切屑代替废钢来熔炼铸铁。其他兄弟厂在这方面进行了很多试验,并且有许多宝贵的经验发表出来,给了我们很大的启发,于八月下旬开始试验加入铸铁切屑的炉料熔炼工 A, Foreword In the past, because of the high quality of the castings of the machine tools in our factory, the use of chips may produce a large amount of wastes. Therefore, it has been impossible to test the use of cast iron chips instead of scrap to melt cast iron. A lot of experiments were carried out by other brother factories in this respect, and many valuable experiences were published. It gave us a great inspiration. In late August, we started to test the chargers who added cast iron chips