ISSN：1003-8620

CN：42-1243/TF

主管：中信泰富特钢集团股份有限公司

主办：大冶特殊钢有限公司

特殊钢 ›› 2013, Vol. 34 ›› Issue (5): 32-33.

• 工艺技术 • 上一篇    下一篇

RH精炼终点-中间包浇铸过程超低碳钢水增碳的影响因素

宋佳霖1, 易正明1, 彭其春1, 盛喜松2, 邓品团2   

  1. 1. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室，武汉 430081；
    2. 武汉钢铁集团，武汉 430083；
  • 收稿日期:2013-04-01 出版日期:2013-10-01 发布日期:2022-09-19
  • 作者简介:宋佳霖(1987-),男，硕士研究生(武汉科技大学),2011年洛阳理工学院毕业，钢水纯净度研究

Effect Factors on Carbon Pickup of Liquid of Ultra-Low Carbon Steel during RH Refining End to Tundish Casting Process

Song Jialin1 , Yi Zhengming1 ,  Peng Qichun1 , Sheng Xisong2 , Deng Pintuan2   

  1. 1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081;
    2. Wuhan Iron and Steel Corporation, Wuhan 430083 ；
  • Received:2013-04-01 Published:2013-10-01 Online:2022-09-19

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摘要： 通过数据统计,分析了钢厂180 t RH精炼结束到45 t中间包浇铸过程中钢包衬、中间包涂料和覆盖剂等对MA超低碳钢水(≤0.005%C)增碳的影响。结果表明,连续浇铸第1炉增碳较大,增碳量5×10-6~10×10-6,其余炉次增碳量≤3×10-6。通过第1炉缓缓加入覆盖剂控制中间包液面波动,加Al2O3减少钢包渣线侵蚀,减少钢包砖衬、中间包涂料和覆盖剂游离碳含量,可使RH精炼终点-中间包浇铸过程中钢水增碳量≤3×10-6。

关键词: 超低碳钢, RH, 中间包覆盖剂, 涂料, 钢包砖衬

Abstract: Effect of ladle lining, tundish coating and covering agent on carbon pickup of liquid of ultra-low carbon steel MA ( ≤ 0.005% C) during 180 t RH refining end to 45 t tundish casting process has been studied by statistic data. Results show that for first heat of continuous-continuous casting heats, the carbon pickup of liquid is higher i. e. 5 x 10-6 ~ 10 X 10-6, for rest heats that is ≤ 3 X 10-6. With slow adding covering agent for first heat to control fluctuation of liquid level, adding Al2O3 in lining to decrease etching of slag line of ladle, and reducing free carbon content in ladle lining, tundish coating and covering agent, the recarburization in liquid during RH refining end to rundish casting process shall be ≤ 3 × 10-6。*

Key words: Ultra-Low Carbon Steel, RH, Tundish Covering Agent, Coating, Ladle Lining

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