| 板坯边裂成因及改善措施 |
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| 引用本文： | 刘现玲,朱开军,张植伟,王文才.板坯边裂成因及改善措施[J].连铸,2011(5):19-22,25. |
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| 作者姓名： | 刘现玲 朱开军 张植伟 王文才 |
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| 作者单位： | 1. 邯钢三炼钢厂,河北邯郸,056015
2. 邯钢连铸连轧厂,河北邯郸,056015 |
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| 摘 要： | 论述了邯钢三炼钢板坯边部裂纹产生的主要原因与钢水中气体含量、结晶器振动参数及二冷工艺制度有关;加强钢保护浇注,避免钢水二次氧化,优化工艺参数,保证矫直温度,可改善铸坯的表面质量,使高强船板边裂改判率由4.5%降低到1.8%。
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| 关 键 词： | 边裂 结晶器 二次冷却 保护浇注 |
Causes and Improvement Measures on Edge Crack of Casting Blank |
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| LIU Xian-ling,ZHU Kai-jun,ZHANG Zhi-wei,WANG Wen-cai.Causes and Improvement Measures on Edge Crack of Casting Blank[J].CONTINUOUS CASTING,2011(5):19-22,25. |
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| Authors: | LIU Xian-ling ZHU Kai-jun ZHANG Zhi-wei WANG Wen-cai |
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| Affiliation: | LIU Xian-ling1,ZHU Kai-jun1,ZHANG Zhi-wei2,WANG Wen-cai1(1.No.3 Steel Making Plant of Handan Iron and Steel Co.,Ltd.,Handan 056015,Hebei,China,2.CSP Plants of Handan Iron and Steel Co.,China) |
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| Abstract: | The causes of edge crack for casting blank was discussed.The results showed that the cracks are connected with gas content of molten steel,mold oscillation parameters and process of secondary cooling system.The surface quality of casting blank is improved by strengthen protection cast process,optimization technological parameters,controlling straightening area temperature so that the edge crack rate of high strength ship plate is reduced from 4.5% to 1.8%. |
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| Keywords: | edge crack mold secondary cooling system protection cast process |
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