半钢冶炼低磷钢生产实践

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Research on the Production of Low-phosphorus Steels with Semi-steel in Xichang Vanadium ＆ Steel

1. State Key Laboratory of Advanced Metallurgy, School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Pangang Group Xichang Vanadium & Steel Co., Ltd., Xichang 615000, Sichuan, China

摘要: 随着攀钢集团西昌钢钒公司高级别钢种的不断开发,转炉生产难度加大,为了满足低磷品种钢的要求,西昌钢钒通过试验总结出一套适合于半钢冶炼低磷、高品质钢种的工艺。通过优化转炉冶炼氧枪工艺,选择合理复吹制度及造渣制度,控制冶炼终点温度在1 620℃左右,结果终点磷含量由原先0.013%稳定降低到0.006%,满足了生产高品质钢对脱磷的要求,此工艺的试验成功为后期高端品种开发打下了坚实基础。
- 低磷钢 /
- 半钢冶炼 /
- 脱磷 /
- 单渣法
Abstract: In order to meet the strict requirements of low- phosphorus steels,a suitable process was invented by Xichang Vanadium & Steel to smelt low-phosphorus high quality steels with semi-steel.By optimizing the oxygen lance of converter smelting process,selecting reasonable combined blowing and slag making schemes,and controlling end-point smelting temperature at about 1 620℃,the end-point phosphorus content was stably reduced from 0.013% to 0.006%,satisfying the requirements of high quality steels on dephosphorization.
- low-phosphorus steel /
- refining of semi-steel /
- dephosphorization /
- single slag process