钢液的炉外精炼与氧气转炉炼钢和连续浇注一起,是近三十年来黑色金属冶炼技术发展中最重要的几项成就。自1950年氩气搅拌和1952年真空脱气开始用于钢包精炼以来,其它如渣洗、电磁搅拌、电弧加热、吹氧等手段,也陆续用于精炼过程,从而出现一系列炉外精炼工艺。近年来,钢液的炉外精炼技术仍不断发展,其中最受重视的新发展是利用氩 The out-of-furnace refining of molten steel together with oxygen converter steelmaking and continuous casting is the most important achievement in the development of ferrous metal smelting technology in the past 30 years. Since argon gas stirring in 1950 and vacuum degassing in 1952 have been used for ladle refining, other methods such as slag washing, electromagnetic stirring, arc heating and oxygen blowing have also been used in the refining process, resulting in a series of out-of-furnace refining processes . In recent years, the molten steel refining technology continues to develop, one of the most noticed new development is the use of argon