| 不同精炼工艺对管线钢洁净度的影响 |
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| 引用本文： | 高攀,张炯明,吴苏州.不同精炼工艺对管线钢洁净度的影响[J].钢铁研究,2010,38(3):6-9. |
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| 作者姓名： | 高攀 张炯明 吴苏州 |
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| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
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| 摘 要： | 对LF-RH和RH-LF 2种精炼工艺生产的管线钢洁净度进行了调研,比较了所生产钢材的各种洁净度指数,分析发现,前一工艺比后一工艺钢中wT.O]平均降低12×10-6,w(N)降低6.5×10-6,w(S)降低8×10-6,显微夹杂物数量更少,尺寸更小,大型夹杂物含量也较低。结果表明,LF-RH工艺更适合生产高洁净管线钢。
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| 关 键 词： | 管线钢 洁净度 炉外精炼 |
Effect of different secondary-refining process on the cleanness of pipeline steel |
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| GAO Pan,ZHANG Jiong-ming,Wu Su-zhou.Effect of different secondary-refining process on the cleanness of pipeline steel[J].Research on Iron and Steel,2010,38(3):6-9. |
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| Authors: | GAO Pan ZHANG Jiong-ming Wu Su-zhou |
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| Affiliation: | (School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China) |
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| Abstract: | Research and investigation were made on two different secondy-refining processes of LF-RH and RH-LF to produce pipeline steel.Comparison of several cleanness indexes between two processes were made.The results show that average w（T.O） of the former is 12×10^-6 lower than the latter,average w（N） is 6.5×10^-6 lower,average w（S） is 8×10^-6 lower,respectively.Compared with RH-LF process,LF-RH process has less amount and smaller size of microinclusions,and less amount of large-sized inclusions.LF-RH process is more suitable for producing high cleanness pipeline steel. |
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| Keywords: | pipeline steel cleanness secondary-refining |
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