| 减宽侧压板坯变形分析和压下规程改进 |
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| 引用本文： | 姚士杰,吴迪,赵宪明. 减宽侧压板坯变形分析和压下规程改进[J]. 钢铁, 2006, 41(6): 35-37,51 |
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| 作者姓名： | 姚士杰 吴迪 赵宪明 |
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| 作者单位： | 宝山钢铁股份有限公司厚板厂,上海,201900;东北大学轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004 |
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| 摘 要： | 板坯调宽侧压过程中常出现失稳弯曲及头尾部鱼尾过长现象,降低了产品的成材率.对减宽侧压过程的板坯金属变形流动情况进行了分析,并结合外端与变形区的相互影响,采用塑性失稳理论对板坯的失稳弯曲现象和头尾部鱼尾变形进行了研究.在理论分析的基础上,提高了压紧辊的间隙,减少了失稳弯曲.提出了新的减宽压下规程,对减宽技术进行了改进,减宽精度明显提高,带钢头尾部的切损减少.
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| 关 键 词： | 减宽侧压 板坯变形 板坯头尾弯曲 |
| 文章编号： | 0449-749X（2006）06-0035-03 |
| 修稿时间： | 2005-08-11 |
Plastic Deformation Analysis of Slab and Improvement of Pressing Schedule on SP |
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| YAO Shi-jie,WU Di,ZHAO Xian-ming. Plastic Deformation Analysis of Slab and Improvement of Pressing Schedule on SP[J]. Iron & Steel, 2006, 41(6): 35-37,51 |
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| Authors: | YAO Shi-jie WU Di ZHAO Xian-ming |
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| Affiliation: | 1. Heavy Plate Mill, Baoshan Iron and Steel Co. , Ltd. , Shanghai 201900, China 2. The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning, China |
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| Abstract: | The buckling and "fish tail" are often occurred in sizing press,which can reduce the metal yield.The metal flow of slab in sizing was analyzed and the buckling and "fish tail" at slab head and end were studied with plastic collapse theory according to the mutual influence of end and deformation zone.On the theoretical basis,the compressing roll gap was increased and buckling was reduced.A new sizing process schedule was applied to modify the sizing process and width reduction accuracy was improved obviously,the cutting loss at strip head and tail end was decreased also. |
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| Keywords: | sizing press(SP) slab deformation head and tail end buckling of slab |
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