| 板坯中间裂纹产生的原因及预防措施 |
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| 引用本文： | 佟新,李蓉.板坯中间裂纹产生的原因及预防措施[J].鞍钢技术,2005(3):41-43. |
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| 作者姓名： | 佟新 李蓉 |
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| 作者单位： | 本溪钢铁集团公司;鞍山科技大学 |
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| 摘 要： | 根据本钢炼钢厂工艺流程的生产数据,通过对板坯中间裂纹出现规律及形态的研究,探讨了中间裂纹的成因。认为钢中硫、磷等杂质元素的晶间偏析是中间裂纹产生的内因,而辊缝、二冷系统、拉速、钢水过热度是裂纹产生和扩展的外因.提出了相应的控制措施.
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| 关 键 词： | 板坯 中间裂纹 钢水过热度 |
| 修稿时间： | 2005年1月6日 |
Reasons Leading to Center Crack in Slab and Preventive Measures |
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| Tong Xin,Li Rong.Reasons Leading to Center Crack in Slab and Preventive Measures[J].Aisc Techniques,2005(3):41-43. |
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| Authors: | Tong Xin Li Rong |
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| Affiliation: | 1.Benxi Iron and Steel Group Co. 2.Anshan Science and Technology University |
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| Abstract: | Reasons leading to center cracks in slabs are discussed through studying their' appearance rules and forms based on the production data of process in the Steelmaking Plant of Benxi Iron and Steel Co.. Intergranular segregation of impurity elements such as S, P, etc. are considered to be internal reason causing center cracks, and roll gap, second rolling system, stretching speed and molten steel overheating degree to be outer reasons leading and spreading cracks. The corresponding control measures are advanced. |
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| Keywords: | slab center crack molten steel overheating degree |
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