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| 减少冷轧IF钢表面条痕缺陷的生产实践 | |
| 引用本文： | 曾建华,吴国荣,陈永,杨素波,杨金成,赵克文. 减少冷轧IF钢表面条痕缺陷的生产实践[J]. 钢铁, 2010, 45(9) |
| 作者姓名： | 曾建华 吴国荣 陈永 杨素波 杨金成 赵克文 |
| 作者单位： | 1. 攀枝花钢铁研究院材料所,四川,攀枝花,617000 2. 攀钢钢钒公司技术质量部,四川,攀枝花,617063 3. 攀钢(集团)公司科技部,四川,攀枝花,617067 |
| 摘 要： | 针对攀钢IF钢冷轧板出现的条痕缺陷,在对冷轧板、热轧板及铸坯取样分析的基础上,得出铸坯皮下微裂纹、浇铸过程保护渣卷渣以及铸坯中的夹杂物是IF钢冷轧板条痕缺陷产生的主要原因。通过采取降低钢包顶渣氧化性、控制渣中w(CaO)/w(Al2O3)比值,延长RH脱氧合金化后的循环时间、控制铸机拉速及提高保护渣黏度等技术措施后,冷轧板的条痕缺陷得到了有效控制,因条痕缺陷引起的降级改判率由10.97%降至1.00%以下。 |
| 关 键 词： | IF钢 条痕缺陷 连铸保护渣 精炼工艺 |
Production Practice on the Reduction of Surface Faint-Sliver Defects for Cold-Rolled IF Steel |
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| ZENG Jian-hua,WU Guo-rong,CHEN Yong,YANG Su-bo,YANG Jin-cheng,ZHAO Ke-wen. Production Practice on the Reduction of Surface Faint-Sliver Defects for Cold-Rolled IF Steel[J]. Iron & Steel, 2010, 45(9) | |
| Authors: | ZENG Jian-hua WU Guo-rong CHEN Yong YANG Su-bo YANG Jin-cheng ZHAO Ke-wen |
| Affiliation: | ZENG Jian-hua1,WU Guo-rong1,CHEN Yong1,YANG Su-bo2,YANG Jin-cheng2,ZHAO Ke-wen3(1.Material Research Department,Panzhihua Iron and Steel Research Institute,Panzhihua 617000,Sichuan,China,2.Technique and Quality Control Department,Panzhihua Steel and Vanadium Company Limited,Panzhihua 617063,3.Science and Technology Ministry,Panzhihua Iron and Steel(Group) Co.,Panzhihua 617067,China) |
| Abstract: | The sample of cold-rolled plates,hot-rolled plates and slab were analyzed with the condition of faint-sliver defects appeared in IF steel of Panzhihua Steel,and it was shown that faint-sliver defects in cold-rolled steel sheet were mainly caused by microcrack under the skin of strands,slag entrapment in mold during casting and inclusions in slab during rolling with the analysis on cold-rolled plates,hot-rolled plates and slab in Panzhihua Steel.Faint-sliver defects were controlled effectively with the techn... |
| Keywords: | interstitial free(IF) steel faint-sliver defect mold powder refining process |
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