| CSP生产中钢板表面纵裂分析及解决措施 |
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| 引用本文： | 李慧琴,张跃华,付月英,王权.CSP生产中钢板表面纵裂分析及解决措施[J].连铸,2010(2):39-43. |
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| 作者姓名： | 李慧琴 张跃华 付月英 王权 |
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| 作者单位： | 1. 内蒙古科技大学材料与冶金学院,内蒙古,包头,014010
2. 包头钢铁(集团)公司,内蒙古,包头,014010 |
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| 摘 要： | 针对CSP生产过程中SS400钢板产生的表面纵向裂纹进行研究与分析。结果表明:钢板表面纵向裂纹大部分分布在钢板宽度方向的两个1/4区域内,裂纹的长度一般为0.5~2.0 m,深度为0.1~0.2 mm,宽度均小于1 mm。其裂纹沟内均含有由Na、Mg、Al、Si、Cl、K、Ca等元素组成的复合夹杂物相,而在裂纹的内部有氧化铁夹杂物。进一步分析认为,该种表面缺陷产生于连铸结晶器内,在随后二冷区的强冷和加热炉的加热过程中,裂纹得到了进一步的扩展。通过对结晶器传热的控制和二冷水的调整,板坯的纵裂得到了控制。
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| 关 键 词： | CSP 表面纵向裂纹 分析 措施 |
Analyse and Measures of Surface Longitudinal Cracks of Steel Sheet in CSP Production |
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| LI Hui-qin,ZHANG Yue-hua,FU Yue-ying,WANG Quan.Analyse and Measures of Surface Longitudinal Cracks of Steel Sheet in CSP Production[J].CONTINUOUS CASTING,2010(2):39-43. |
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| Authors: | LI Hui-qin ZHANG Yue-hua FU Yue-ying WANG Quan |
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| Affiliation: | 1.Material and Metallurgy School/a>;UST Inner Mongolia/a>;Baotou 014010/a>;Inner Mongolia/a>;China/a>;2.Baotou Tiancheng Wire Stock Co./a>;Ltd./a>;China |
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| Abstract: | Surface longitudinal crack were studied and analized for SS400 steel sheet,which occurred during CSP manufacturing.The results demonstrated that most of the longitudinal cracks were distributed in two 1/4 areas along wide direction of the steel sheet and appeared as parallel beam or reticulate form.The length and the depth of the cracks were 0.5-2.0mm and 0.1-0.2mm,respectively,and the width was less than 1mm.Complex inclusions which composed of Na,Mg,Al,Si,Cl,K,Ca,etc were found along the trench of the cra... |
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| Keywords: | CSP longitudinal crack of the surface analyse measures |
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