| Thermal Scratch on Surface of SUS430 Stainless Steel Strip in Cold Rolling Process |
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| 引用本文： | Chang-sheng LI,Jin-shan CHEN,Wen-long HAN,You-yuan LI,Bo FU. Thermal Scratch on Surface of SUS430 Stainless Steel Strip in Cold Rolling Process[J]. 钢铁研究学报(英文版), 2014, 21(3): 282-286. DOI: 10.1016/S1006-706X(14)60043-1 |
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| 作者姓名： | Chang-sheng LI Jin-shan CHEN Wen-long HAN You-yuan LI Bo FU |
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| 基金项目： | Item Sponsored by National Natural Science Foundation of China （51174057, 51274062） ; National High-technology Research and Development Program of China （2012AA03AS03） |
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| 摘 要： | The thermal scratch significantly influences the surface quality of the stainless steel in cold strip rolling.The thermal scratch has a close relation to the rolling parameters,the rolls surface and the emulsions used in rolling.In order to explain the thermal scratch on the strip surface,the cold rolling process of SUS430stainless steel strip was investigated in the laboratory.The thermal scratch defect occurs frequently in the second rolling pass(maximum reduction in height is 32.3%),especially on the lower surface of strips.When concentration and temperature of the emulsion are the same,the thermal scratch on the surface of the strip is aggravated with increasing the roll surface roughness.With the same roll surface roughness and emulsion concentration,the thermal scratch is obviously more severe at an emulsion temperature of 63℃than 55℃.With the same roll surface roughness and emulsion temperature,the thermal scratch is distinctly weaker at the emulsion concentration of 6%than that of 3%.
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| 关 键 词： | 表面质量 不锈钢带 冷轧工艺 划伤 表面粗糙度 轧制参数 带钢表面 浓度比 |
| 收稿时间： | 2012-11-02 |
Thermal Scratch on Surface of SUS430 Stainless Steel Strip in Cold Rolling Process |
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| Chang-sheng LI,Jin-shan CHEN,Wen-long HAN,You-yuan LI,Bo FU. Thermal Scratch on Surface of SUS430 Stainless Steel Strip in Cold Rolling Process[J]. Journal of Iron and Steel Research, 2014, 21(3): 282-286. DOI: 10.1016/S1006-706X(14)60043-1 |
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| Authors: | Chang-sheng LI Jin-shan CHEN Wen-long HAN You-yuan LI Bo FU |
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| Affiliation: | 1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China 2. Baosteel Stainless Steel Co. , Ltd. , Shanghai 200431, China |
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| Abstract: | The thermal scratch significantly influences the surface quality of the stainless steel in cold strip rolling. The thermal scratch has a close relation to the rolling parameters, the rolls surface and the emulsions used in rolling. In order to explain the thermal scratch on the strip surface, the cold rolling process of SUS430 stainless steel strip was investigated in the laboratory. The thermal scratch defect occurs frequently in the second rolling pass (maximum reduction in height is 32. 3%), especially on the lower surface of strips. When concentration and temperature of the emulsion are the same, the thermal scratch on the surface of the strip is aggravated with increasing the roll surface roughness. With the same roll surface roughness and emulsion concentration, the thermal scratch is obviously more severe at an emulsion temperature of 63 ℃ than 55 ℃. With the same roll surface roughness and emulsion temperature, the thermal scratch is distinctly weaker at the emulsion concentration of 6% than that of 3%. |
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| Keywords: | stainless steel thermal scratch emulsion roll surface roughness |
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