| 堆垛缓冷对连铸坯中心偏析的影响 |
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| 引用本文： | 沈世雕,黄福祥,陈书浩,王新华,王万军.堆垛缓冷对连铸坯中心偏析的影响[J].钢铁,2010,45(10). |
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| 作者姓名： | 沈世雕 黄福祥 陈书浩 王新华 王万军 |
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| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
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| 摘 要： | 研究了轧制前堆垛缓冷处理对连铸坯中心偏析的影响。通过对试验铸坯横断面的低倍硫印检验和沿铸坯厚度方向上的化学分析以及对轧后钢板的断面组织观察,发现轧前堆垛缓冷处理减轻了铸坯中心碳偏析和轧后钢板带状组织。堆垛缓冷48 h的铸坯中心偏析级别由C类2.0下降到C类1.5;堆垛缓冷36 h的铸坯轧后钢板与堆垛缓冷24 h的试样相比,其断面带状组织明显减轻,且没有明显连续的珠光体带状组织。
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| 关 键 词： | 连铸坯 堆垛缓冷 中心偏析 带状组织 |
Study on Effect of Stacking Slow-Cooling Before Rolling on Center-Segregation of Continuous Casting Slab |
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| SHEN Shi-diao,HUANG Fu-xiang,CHEN Shu-hao,WANG Xin-hua,WANG Wan-jun.Study on Effect of Stacking Slow-Cooling Before Rolling on Center-Segregation of Continuous Casting Slab[J].Iron & Steel,2010,45(10). |
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| Authors: | SHEN Shi-diao HUANG Fu-xiang CHEN Shu-hao WANG Xin-hua WANG Wan-jun |
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| Affiliation: | SHEN Shi-diao,HUANG Fu-xiang,CHEN Shu-hao,WANG Xin-hua,WANG Wan-jun(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China) |
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| Abstract: | The effect of stacking slow-cooling before rolling on the center-segregation of continuous casting slab was investigated.By the macroscopic sulphur print test over the cross section of testing slabs as well as analyzing the chemical compositions of the samples along the thickness direction and observing the cross section structure of rolled plate,it is found out that the effect of stacking slow-cooling before rolling on the center carbon segregation in the slab and the band structure in the rolled plate is ... |
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| Keywords: | continuous casting slab stacking slow-cooling center-segregation band structure |
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