超低碳钢精炼结束到中间包过程增碳控制研究
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- 英文论文题名：Contol of Carbon Pick-Up in the Ultra-Low-Carbon Steel from Refining End to Tundish Process
- 论文作者：董文亮 ; 关顺宽 ; 季晨曦 ; 李一丁 ; 潘宏伟 ; 曾智
- 英文论文作者：Dong Wenliang ; Guan Shunkuan ; Ji Chenxi ; Li Yiding ; Pan Hongwei ; Zeng Zhi ; Shougang Research Institute of Technology ; Shougang Jingtang United Iron and Steel Co.Ltd.
- 年：2016
- 作者机构：首钢技术研究院;首钢京唐钢铁联合有限责任公司;
- 论文关键词：超低碳钢 ; 增碳控制 ; 耐火材料 ; 覆盖剂
- 英文论文关键词：ultra-low-carbon steel ; carbon pick-up ; ladle lining ; covering flux ; long nozzle
- 会议召开时间：2016-05-19
- 会议录名称：第十九届（2016年）全国炼钢学术会议大会报告及论文摘要集
- 语种：中文
- 分类号：TF761.2
- 学会代码：ZGJS
- 会议名称：第十九届（2016年）全国炼钢学术会议
- 会议地点：中国湖南长沙
- 主办单位：中国金属学会炼钢分会
- 学会名称：中国金属学会
- 页数：2
- 文件大小：112k
- 原文格式：O
- 会议级别：全国
摘要
分析了精炼结束到中间包过程中钢包内衬、中间包覆盖剂、中间包内衬和连浇炉数等因素对超低碳钢钢液增碳的影响。通过分析表明,钢液的增碳量随着钢包砖衬碳含量的降低而下降,将包壁和包底的碳含量控制在0.5%以下,渣线部位的碳含量低于5%可以大幅度减少钢包耐材向超低碳钢液增碳效果,钢包的增碳量随着包龄的增加而降低。中间包工作层使用涂抹料取代干式料后,精炼结束到中包增碳量平均减少1.4~1.5ppm左右,增碳≤3ppm比例由36~44%上升到62%左右;无碳长水口的应用可使增碳均值降低到1.8ppm。
The carbon pick-up effects of ladle lining,covering agent,tundish lining and continuous casting heats on the BH molten steel of were analyzed from refining end to tundish process.The results are shown that the carbon pick-up effect is suppressed significantly when the carbon in ladle liling and bottom is controlled to be under 0.5%and the carbon in slag-line is controlled to be under 5%.The carbon pick-up decreased by 1.4~1.5ppm and the percentage of carbon pick-up under 3ppm increased to 62%from36~44%by using new working layer in tundish.The carbon pick-up decreased to 1.8ppm by using the carbon-free long nozzle.
The carbon pick-up effects of ladle lining,covering agent,tundish lining and continuous casting heats on the BH molten steel of were analyzed from refining end to tundish process.The results are shown that the carbon pick-up effect is suppressed significantly when the carbon in ladle liling and bottom is controlled to be under 0.5%and the carbon in slag-line is controlled to be under 5%.The carbon pick-up decreased by 1.4~1.5ppm and the percentage of carbon pick-up under 3ppm increased to 62%from36~44%by using new working layer in tundish.The carbon pick-up decreased to 1.8ppm by using the carbon-free long nozzle.
引文