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我厂生产汽缸盖毛坯,每年要用一千二百余吨废钢,作为冲天炉配料用。在一九七四年初,由于废钢供应一时有困难,曾面临着停产的危险。为解决这一关键问题,在厂党总支的领导下,于一九七五年五月正式试验成功了全部采用废铁屑炼钢的铁屑炼钢反射炉。试验结果表明,炼出的钢水不仅可浇铸钢锭供高级铸铁配料用,而且可以浇铸铸钢件。在初步取得成功的基础上,我们参照平炉和煤粉化铁炉的炉型结构,建造了一座铁屑炼钢炉并已正式用于生产。现将用铁屑炼钢和铁屑炼钢炉的有关情况介绍如下。
I plant cylinder head blank production, each year to use more than 1,200 tons of scrap steel, used as cupola ingredients. In early 1974, there was a danger of a shutdown due to the temporary availability of scrap. In order to solve this crucial issue, under the leadership of the General Party Branch of the Factory, an iron-scrap steel-making reverberatory furnace, all of which was scrap steel-making, was successfully tested in May 1975. The test results show that the molten steel can be cast not only for casting high-grade cast iron ingot, but also cast steel castings. Building on the initial success, we built an iron-scrap steel-making furnace with reference to the furnace-type structure of the open hearth and pulverized coal fired furnace and have been formally used for production. Now the use of iron scrap iron and steelmaking furnace of the situation are as follows.