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用改进的脱氧体在20 kg密封感应炉内进行钢水脱氧实验,结果表明,脱氧效果明显,仍是一个快速有效的脱氧方法.但由于钢水中没有残存的脱氧剂,钢水的抗氧化能力较低,含氧炉气、高氧炉渣、稳定性差的耐火材料等都有可能成为钢水二次氧化的氧源,致使存在明显的回氧现象.在进行脱氧操作时,若不对钢水实现有效封闭,将难以将氧含量降至20×10-6以下.
The deoxidation of molten steel in a 20 kg hermetically sealed induction furnace was carried out with an improved deoxygenated body and the results showed that the deoxidation effect was still a fast and effective method for deoxidation, but because of the absence of residual deoxidizer in the molten steel, the oxidation resistance of the molten steel was low , Oxygen furnace gas, high oxygen slag, poor stability of the refractory materials are likely to become secondary oxygen source of molten steel, resulting in significant oxygen phenomenon in the deoxy operation, if the effective closure of the molten steel, the It is difficult to reduce the oxygen content below 20 × 10 -6.