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摘自《鉄鋼》,1992,Vol. 78,No. 11,1—10 1 炼钢技术的进步:日本自1973年钢产量已达到1.2亿吨,主要由氧气顶吹转炉生产,平炉钢不断减少。到1975年,平炉已全部淘汰。从1970年开始,连铸技术在日本迅速推广,到1985年,连铸比已高达90%以上。目前,世界各国的连铸比,以法国和日本最高,均高达95%,德国、英国均在80%以上,美国在60%左右,前苏联的连铸比还不到20%,自从炼钢转炉化以后,炼钢技术的又一重大变革就是
From the “steel”, 1992, Vol. 78, No. 11,1-10 1 progress in steelmaking: Japan has produced 120 million tons of steel since 1973, mainly produced by the oxygen top-blown converter, flat-rolled steel continued to decline. By 1975, flat furnace has been eliminated. Since 1970, continuous casting technology has been rapidly promoted in Japan. By 1985, the continuous casting ratio was as high as 90% or more. At present, the continuous casting ratio in various countries in the world is as high as 95% in France and Japan, with more than 80% in Germany and Britain, 60% in the United States, and less than 20% in the former Soviet Union. Since the steelmaking After the converter, another major change in steelmaking technology is