| DP钢表面带状色差缺陷成因及控制 |
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| 引用本文： | 孙超凡,李研,于洋,高小丽,夏银峰,周旬.DP钢表面带状色差缺陷成因及控制[J].轧钢,2017,34(5):38-40. |
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| 作者姓名： | 孙超凡 李研 于洋 高小丽 夏银峰 周旬 |
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| 作者单位： | 1.首钢集团有限公司技术研究院，北京100043 ;2.绿色可循环钢铁流程北京市重点实验室，北京100043 ;3.首钢京唐钢铁联合有限责任公司，河北唐山063200 |
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| 摘 要： | 采用SEM检测分析，明确了DP钢表面带状色差缺陷的成因为冷轧带钢浅表层的轧碎。通过改变冷轧基料基体组织类型，改善冷轧来料表面质量，调整冷轧压下率等工艺措施，有效控制了DP钢成品表面色差缺陷的产生。
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| 关 键 词： | DP钢 色差 成因 措施 |
| 收稿时间： | 2016-06-20 |
Formation mechanism and control measures of dark band defect on DP steel strip |
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| SUN Chao- fan,LI Yan,YU Yang,GAO Xiao- li,XIA Yin- feng,ZHOU Xun.Formation mechanism and control measures of dark band defect on DP steel strip[J].Steel Rolling,2017,34(5):38-40. |
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| Authors: | SUN Chao- fan LI Yan YU Yang GAO Xiao- li XIA Yin- feng ZHOU Xun |
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| Affiliation: | （1.Research Institute of Technology，Shougang Group Co.,Ltd.,Beijing 100043，China ; 2.Beijing Key Laboratory of Green Recyclable Process for Iron & Steel Production Technology，Beijing 100043，China ; 3.Shougang Jingtang United Iron & Steel Co.,Ltd.，Tangshan 063200，China） |
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| Abstract: | The cause for a kind of dark band defect on DP steel strip was studied by SEM.The result show that the root cause led to this band defect is the rolled cracks distributed on the surface of the strip.The incidence of this band defect could be decreased obviously through changing the ferrite matrix and improving the surface quality of hot rolled strip，and adjusting the reduction rate of cold rolling. |
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| Keywords: | DP steel band defects causes control measures |
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