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据《IRON & STEELMAKER》Vol. 16,No. 7,1989,P23报道,日本钢公司Nagoya厂开了一种新型二次精炼工之,称之为RH—PB。该工艺除脱磷之外,还可以脱硫、脱氢。近来,对低氮、氧、磷、硫和低氢的高纯钢需求量很大,二次精炼工艺必须满足各种成分要求。工艺复杂性增加使高产,低耗地生产高纯钢难度增大。最初,为了去除钢中氢而开发的RH工艺也可进行脱碳、脱氧和成分调节。在RH上增加吹氧(RH—OB),以加热钢液,有利于生产超低碳钢,且通过粉剂精炼
According to IRON & STEELMAKER, Vol. 16, No. 7, 1989, P23, the Japanese steel company Nagoya Factory opened a new type of secondary refiner called RH-PB. In addition to dephosphorization of the process, but also can be desulfurization, dehydrogenation. Recently, there is a great demand for high-purity steel with low nitrogen, oxygen, phosphorus, sulfur and low hydrogen, and the secondary refining process must meet various compositional requirements. Increasing the complexity of the process to make high-purity, low-cost high-purity steel production difficult to increase. Initially, the RH process developed to remove hydrogen in steel was also decarburized, deoxygenated and compositionally regulated. The addition of blowing oxygen (RH-OB) to the RH to heat the molten steel is advantageous for the production of ultra-low carbon steel and is refined by dusting