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| 连铸坯表面气孔缺陷研究 | |
| 引用本文： | 耿明山,王新华,张炯明,王万军,刘志明.连铸坯表面气孔缺陷研究[J].钢铁,2010,45(1). |
| 作者姓名： | 耿明山 王新华 张炯明 王万军 刘志明 |
| 作者单位： | 1. 中冶京诚工程技术有限公司,北京,100176;北京科技大学冶金与生态工程学院,北京,100083 2. 北京科技大学冶金与生态工程学院,北京,100083 3. 广东省韶关钢铁集团有限公司第三炼钢厂,广东,韶关,512123 |
| 摘 要： | 通过对连铸坯和热轧板表面气孔缺陷影响因素的分析,确定了由上水口、氩封和浸入式水口3个位置吹入的氩气不能有效上浮而被凝固坯壳捕捉形成了连铸坯表面气孔缺陷。气孔基本分布在宽面靠近窄边位置,而连铸坯宽面中心和连铸坯宽面1/4位置气孔数量很少。采用不吹氩气的生产工艺可以消除连铸坯和热轧板表面的气孔缺陷。 |
| 关 键 词： | 连铸坯 气孔缺陷 氩气 |
Study of Surface Blow Hole Defects of Continuous Casting Slab |
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| GENG Ming-shan,WANG Xin-hua,ZHANG Jiong-ming,WANG Wan-jun,LIU Zhi-ming.Study of Surface Blow Hole Defects of Continuous Casting Slab[J].Iron & Steel,2010,45(1). | |
| Authors: | GENG Ming-shan WANG Xin-hua ZHANG Jiong-ming WANG Wan-jun LIU Zhi-ming |
| Affiliation: | 1.MCC Capital Engineering & Research Incorporation Ltd.;Beijing 100176;China;2.School of Metallurgical and Ecological Engineering;University of Science and Technology Beijing;Beijing 100083;3.Shaoguan Iron & Steel Group Co.;Ltd.;Shaoguan 512123;Guangdong;China |
| Abstract: | Influencing factor of the blow hole defect in continuous casting slab and hot rolled plate were analyzed.The main reason of surface blow hole defect in continuous casting slab is that the argon gas insufflate the mold from the upper nozzle,argon sealing and submerged entry nozzle cannot float effectively.The argon blow hole was captured by solidified continuous casting slab shell and induced the surface blow hole defect in continuous casting slab.The blow hole mostly distributed to the wide-face shell edge ... |
| Keywords: | continuous casting slab blow hole defect argon gas |
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