| Cu、As、Sn对C-Mn钢热轧板表面质量的影响 |
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| 引用本文： | 耿明山,王新华,张炯明,肖寄光,何矿年.Cu、As、Sn对C-Mn钢热轧板表面质量的影响[J].特殊钢,2008,29(6):41-43. |
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| 作者姓名： | 耿明山 王新华 张炯明 肖寄光 何矿年 |
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| 作者单位： | 1 北京科技大学冶金与生态工程学院，北京100083;
2韶关钢铁集团有限公司，韶关512123 |
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| 摘 要： | 通过扫描电子显微镜和X-射线能谱分析研究了C-Mn钢(%:0.13～0.20C、1.00～1.60Mn、0.09Cu、0.07As、0.05Sn)连铸坯热轧的25 mm板表面微裂纹。结果表明,热轧板表面裂纹两侧存在薄的氧化脱碳层,裂纹沿晶界开裂,裂纹附近的基体处存在Cu、As、Sn低熔点富集相。实际生产中当钢中的Cu、As、Sn含量分别控制≤0.02%,可基本消除热轧板表面网状裂纹。
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| 关 键 词： | Cu、As、Sn C-Mn钢 热轧板 表面裂纹 低熔富集相 |
| 收稿时间： | 2008-05-22 |
Effect of Cu,As,Sn on Surface Quality of Hot Rolled Plate of C-Mn Steel |
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| Geng Mingshan,Wang Xinhua,Zhang Jiongming,Xiao Jiguang,He Kuangnian.Effect of Cu,As,Sn on Surface Quality of Hot Rolled Plate of C-Mn Steel[J].Special Steel,2008,29(6):41-43. |
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| Authors: | Geng Mingshan Wang Xinhua Zhang Jiongming Xiao Jiguang He Kuangnian |
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| Affiliation: | 1 School of Metallurgical and Ecological Engineering,University of Science and Technology,Beijing 100083;
2 Shaoguan Iron and Steel Group Co Ltd,Shaoguan 512123 |
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| Abstract: | The surface micro cracks of 25 mm hot rolled plate rolled by cast slab of C-Mn steel(0.13～0.20C, 1.00~1.60Mn,0.09Cu,0.07As,0.05Sn)have been studied by scanning electron microscope and X-ray energy dispersive spectrometer.Results showed that there was thin oxidizing-decarburizing layer at both sides of surface crack,the crack fractured along grain-boundary and the low-melting-point Cu-As-Sn enriched phases existed at steel matrix near crack.In production practice,as Cu,As,Sn content in steel was respectively controlled ≤0.02%,the surface net cracks of hot rolled plate were basically eliminated. |
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| Keywords: | Material Index Cu As Sn C-Mn Steel Hot Rolled Plate Surface Crack Low-Melting-Point Enriched Phase |
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