超低碳超低硫钢生产工艺研究  

Research on Production Technology of Ultra Low Carbon and Sulphur Steel

作　　者：邱永清 赵晋斌 

机构地区：[1]研究院

出　　处：《南钢科技与管理》2016年第1期6-10,共5页NISCO Technology and Management

摘　　要：介绍了第一炼钢厂采用铁水预处理脱硫-BOF-RH-LF-CCM工艺流程生产超低碳、超低硫、低磷、低氮钢的生产实践。通过合理的转炉过程和终点控制、RH真空脱碳、LF炉快速造渣脱硫、连铸过程全保护浇注等技术手段,成功生产了[C]≤0.01%、[S]≤0.002%、[P]≤0.013%、[N]≤0.004%高纯净度的钢水,并在板坯连铸机上实现了多炉连浇。该工艺成功的应用在抗震建筑用低屈服点钢的生产中,为南钢生产超低碳、超低硫钢开辟了一条很好的途径。This paper introduces the production technology of ultra low carbon and sulphur steel with hot metal pretreatment-BOF-RH-LF-CCM process at No. Steel-making Plant. By the converter end-point control technique,RH vacuum decarbonization technique and LF rapid slagging desulphurization technique,high cleanliness molten steel was produced with [C]≤0. 01%,[S]≤0. 002%,[P]≤0. 013%,[N]≤0. 004% and multiple ladle continuous casting has been realized. The ultra low carbon and sulphur steel has been applied to produce earthquake resistant steel,which provides a good way to produce high cleanliness steel with ultra low carbon,ultra lowsulphur low phosphorus and low nitrogen.

关 键 词：超低碳超低硫钢 真空度 脱硫 造渣 

分 类 号：TF769[冶金工程—钢铁冶金]