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连续铸锭技术发展很快,目前应用连铸技术生产优质棒材钢业已开始普及。为获得优质连铸坯,必须向连铸机提供化学成份和温度均匀而有害气体含量低的钢液。本文主要介绍神户制钢公司为获得优质钢液而采用的炉外精炼技术。一、设备概况神户制钢公司1981年初投产的3号连铸机主要生产优质棒材钢,供给它的钢液全部实施了炉外精炼。炉外精炼设备示于表1,其特征如下: 1、采用钢液换包的方法完全除掉转炉
Continuous casting technology has developed rapidly, the current application of continuous casting technology to produce high-quality steel bar has begun to spread. In order to obtain a high quality slab, it is necessary to supply the caster with molten steel with a chemical composition and a uniform temperature but with a low content of harmful gas. This article mainly introduces Kobo Steel’s refining technology for obtaining high-quality molten steel. First, the equipment profile Kobe Steel Company put into operation in early 1981 on the 3rd continuous casting machine mainly produces high quality bar steel, steel liquid supplied to it all implemented outside the furnace refining. Furnace refining equipment shown in Table 1, which are as follows: 1, the method of using steel liquid for complete removal of the converter