| 基于射钉法的板坯连铸工艺优化 |
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| 引用本文： | 孙永栋,姚同路,高龙永.基于射钉法的板坯连铸工艺优化[J].山东冶金,2012,34(2):24-25. |
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| 作者姓名： | 孙永栋 姚同路 高龙永 |
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| 作者单位： | 1. 济南钢铁股份有限公司,山东济南,250101
2. 钢铁研究总院 冶金工艺研究所,北京,100081 |
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| 摘 要： | 利用射钉法测定了连铸机板坯冷却过程凝固坯壳厚度,重点分析了中间包钢水过热度、拉速、二冷区冷却制度与铸坯凝固系数之间的关系,对凝固系数影响大小的顺序为:过热度＞拉速＞比水量.采取控制中包钢水过热度及拉速,优化二冷配水工艺,调整铸机扇形段开口度等措施,铸坯中心偏析平均级别由B1.5 ～ B2.0降低至B0.5～ B1.0,试样分层缺陷改判率由0.36％降低至0.06％.
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| 关 键 词： | 板坯连铸 射钉法 坯壳厚度 凝固系数 |
Optimization of Slab Continuous Casting Process Based on the Nail-shooting Technique |
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| SUN Yong-dong
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YAO Tong-lu
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GAO Long-yong.Optimization of Slab Continuous Casting Process Based on the Nail-shooting Technique[J].Shandong Metallurgy,2012,34(2):24-25. |
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| Authors: | SUN Yong-dong YAO Tong-lu GAO Long-yong |
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| Affiliation: | 1(1 Jinan Iron and Steel Co.,Ltd.,Jinan 250101,China;2 Metallurgical Department,Central Iron and Steel Research Institute,Beijing 100081,China) |
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| Abstract: | The Nail-shooting Technique was used to determine slab solidified shell thickness of slab caster and the focal point was the analysis on the relationship between the superheat degree of liquid steel,casting speed,secondary cooling water process and slab solidification coefficient,the influence order on slab solidification coefficient from large to smell is:the degree of superheat>casting speed>specific water flow.By adopting some optimizing measures such as controlling the superheat degree of liquid steel and casting speed,optimizing secondary cooling water process,adjusting opening degree of sector segment and so on,the slab centre segregation grade was decreased from B1.5 or B2.0 to B0.5 or B1.0 and judgement-changing rate by layered fracture of the simple was decreased from 0.36% to 0.06%. |
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| Keywords: | slab continuous casting nail-shooting technique shell thickness solidification coefficient |
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