铸造生产中为了满足铸铁零件的质量要求,必须投入一部分废钢来提高铸铁的机械性能。但是废钢目前在供应上是不能满足生产需要的,而另一方面大量的钢屑却废弃不用。一九五三年,我厂在积极响应节约废用量的的号召下,组织熔炼工人及技术人员对化铁炉进行改装工作,将原有冲天炉改装成三排风口,并添装了前炉,在铸铁质量有显著的提高及稳定后,接着就开始钢屑回炉重熔的试验工作。经过一个月的试 Casting production in order to meet the quality requirements of cast iron parts, must invest part of the scrap steel to improve the mechanical properties of cast iron. However, scrap currently can not meet production needs in supply, while a large amount of steel scrap is discarded. In 1953, under the guidance of actively responding to the demand of saving waste, the factory organized smelting workers and technicians to modify the iron furnace, converted the existing cupola into three vents and added the former Furnace, cast iron quality significantly improved and stabilized, then began the remelting of steel scrap remelting test work. After a month’s trial