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我厂是新创办的小厂。74年十月开始生产可锻铸铁,铸铁件主要产品是汽车轴头、刹车蹄铁等。可锻铸铁要求出铁温度高(1400℃以上)、流动性能好、烧损少、化学成份稳定(C:2.4—2.6%,Si1.6—1.8%,Mn0.3—0.5%,S(?)0.2%,P<0.2%)的铁水。遵照毛主席教导和党中央“大干快上”的号召,在南京工学院工农兵学员及革命教师的共同协助下,克服了重重困难,从今年四月份起,对冲天炉进行了初步改革。使用的铁料主要是回炉铁(C;2.60%左右,Si:1.60%左右)和废钢(本厂边角料)、
Our factory is a newly founded small factory. In October 74, the production of malleable iron began. The main products of the iron castings were the automobile shaft head, brake shoe and so on. Malleable cast iron requires high temperature (above 1400 ℃), good flowability, low burning loss and stable chemical composition (C: 2.4-2.6%, Si 1.6-1.8%, Mn 0.3-0.5%, S (0.2) 0.2 %, P <0.2%) of hot metal. Following the call of Chairman Mao and the Central Party Committee’s “quick work on the great achievements”, with the joint help of the workers, peasants and soldiers of Nanjing Institute of Technology and the revolutionary teachers, they overcame various difficulties. From April this year, a preliminary reform of the cupola was carried out. The iron used is mainly iron (C; about 2.60%, Si: about 1.60%) and scrap (factory scrap)