The development of converter steelmaking technology for recent years in China, including hot metal desulphurization, combined blowing on converter and secondary refining is reviewed.
总结了近几年国内铁水脱硫预处理、转炉复合吹炼与炉外精炼等主要炼钢生产工艺技术的进步。
The ion-exchange membrane caustic soda technology is summarized in the fields of secondary refining of brine and ion-exchange membrane electrolytic technology.
从盐水二次精制、离子膜电解技术方面概述了离子膜电解制碱技术。
Test results show that such steel can be mass produced with technology of a large converter plus the secondary refining, which can insure drill pipes for the transverse impact toughness.
试验表明，采用合适的冶炼工艺，大型转炉加炉外精炼能够批量生产超低硫低磷钻杆用钢，使钻杆获得高横向冲击韧性。
Test results show that such steel can be mass produced with technology of a large converter plus the secondary refining, which can insure drill pipes for the transverse impact toughness.
试验表明，采用合适的冶炼工艺，大型转炉加炉外精炼能够批量生产超低硫低磷钻杆用钢，使钻杆获得高横向冲击韧性。
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