铸件在加工时,要切下来大量的切屑,过去当成废物仍掉了。在增产节约运动中,我们把它回炉重炼,为国家节约了大量铸铁。具体的办法是:切削灰铸铁时,铸铁切屑和其他铁屑分开堆放,且不使它沾不氧化,回炉前除去其中杂质, Casting in the processing, to cut a lot of chips, in the past as a waste still lost. In increasing production and saving exercise, we put it back into focus, saving a lot of cast iron for the country. The specific approach is: When cutting gray cast iron, cast iron chips and other iron filings separately stacked, and do not make it non-oxide non-oxide, before removing impurities in the furnace,