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本文综述了有关连铸过程中钢液的二次氧化问题。对二次氧化的范畴和二次氧化的危害性,作了简要说明。指出了因二次氧化所形成的夹杂物的基本特征。提出了影响二次氧化的主要因素和防止二次氧化的根本措施。讨论了铜液和熔渣、耐火材料相互作用的二次氧化、以及二次氧化引起的水口堵塞和增氮增氢问题。
This article summarizes the secondary oxidation of molten steel in the continuous casting process. The scope of the secondary oxidation and the dangers of secondary oxidation, made a brief description. The basic characteristics of inclusions formed by secondary oxidation are pointed out. The main factors affecting the secondary oxidation and the fundamental measures to prevent secondary oxidation are proposed. The secondary oxidation of copper liquid and slag and refractories was discussed, as well as the blockage of the nozzle due to secondary oxidation and the problem of nitrogen and hydrogen addition.