我们厂冲天炉的改进是适应生产需要,在两条路线的激烈斗争中发展起来的,我们厂铸工车间原是一个老式的冲天炉生产,这个炉子焦炭耗量大,总焦铁比为1:3—5铁水温度低,只达1200℃左右。一九七三年我厂承担了丰收27缸盖的试制任务。缸盖铸件,铸型复杂,牌号高,并要经水压试验鉴定不得有渗漏现象,由于铁水温度低,流动性差,造成铸件报废率大。又由于焦炭消耗量大,常因运输困难造成缺焦停产。困难当头,出现了两种思想的斗争,一种是等、靠、要,等焦炭、等设备。—种是敢,闯、改,敢于革新,敢于对老炉子进 Our factory cupola improvement is to adapt to production needs, developed in the fierce struggle of two lines, our factory foundry workshop was originally an old cupola production, the stove coke consumption, the total iron and iron ratio of 1: 3-5 hot metal temperature is low, only about 1200 ℃. In 1973, our factory undertook the trial of harvesting 27 cylinder heads. Cylinder head castings, mold complex, high grade, and to be identified by the hydraulic test may not have leakage, due to the low temperature of hot metal, poor fluidity, resulting in casting scrap rate. And because of coke consumption, often due to transportation difficulties caused by lack of coke suspension. Difficult to take the lead, there have been two kinds of ideological struggle, one is waiting, rely on, to, coke, and other equipment. - Kind of dare, break, change, dare to innovate, dare to enter the old stove