锻压技术

高线中轧区的辊缝调整

英文标题：Roll gap adjustment on mid-rolling zone for high speed wire rod

作者：李立新张涛周志峰杨君

单位：武汉科技大学

关键词：高线中轧区辊缝折叠宽展模型有限元

分类号：TG335.6

出版年,卷(期):页码：2016,41(11):88-92

摘要：

中轧区辊缝调整不当易使轧件在进一步扭转及后续轧制过程中产生表面折叠，为了减少折叠缺陷的产生，确定了高线中轧区合适的宽展模型，在满足孔型充满度条件下计算出辊缝调整的极限区间。参照辊缝调整区间，建立合理的有限元模型，模拟轧件在高线中轧区轧制变形过程，根据模拟结果，分析轧件变形及金属局部流动状况。研究发现，当中轧区辊缝超出调整范围时，金属横向变形过大，轧件容易产生耳子。辊缝调整范围在实际应用后发现可以有效减少表面折叠。

Workpieces are easily folded in a further reverse rolling with inappropriate adjustment of the roll gap on mid-rolling zone. The appropriate spread model of high speed wire rod on mid-rolling zone was confirmed, and roll gap adjustment limit interval was calculated under the filling holes. The reasonable FEM simulation was established according to the limit interval, and the rolling process was simulated. According to the simulation result, the deformation characteristics and metal flow situation were analyzed. The results indicate that the metal lateral deformation is too large and the wordpieces are prone to produce ears when the roll gaps exceed the adjustment values. Finally, folds on the surface are effectively reduced after a reasonable interval is applied in the practical production.

基金项目：

钢铁冶金及资源利用省部共建教育部重点实验室（FMRU2007Y01）

李立新(1963-)，男，博士,教授张涛(1991-)，男，硕士研究生

参考文献：

［1］田庄强, 李长健. 浅析线材质量对钢丝绳综合性能的影响[A]. 2014年全国钢材深加工研讨会论文集[C]. 天津，2014.Tian Z Q, Li C J. Analysis of effects on comprehensive properties of steel ropes quality[A]. The 2014 National Steel Deep Processing Symposium[C].Tianjin,2014.
［2］方晴, 张卫兵, 彭文. 轧辊孔型参数对轧制过程影响的数值模拟[J]. 硬质合金, 2014, 31(1): 30-36.Fang Q, Zhang W B, Peng W. Numerical simulation of effect of roll pass's parameter on rolling process[J]. Cemented Carbide, 2014, 31(1): 30-36.
［3］乔明亮，肖立军，王长生，等. 高速线材表面缺陷的产生原因及排除方法[J]. 山东冶金, 2010, 32(4): 16-17.Qiao M L, Xiao L J, Wang C S, et al. The causes of the high speed wire rod surface defects and solutions[J]. Shandong Metallurgy, 2010, 32(4): 16-17.
［4］周民，陈莹卷，马靳江，等. 宽展模型在高速线材轧制过程中的应用及进步[J]. 钢铁技术, 2013, (2): 34-37.Zhou M, Chen Y J, Ma J J, et al. Spreading model and its application in high speed wire rod rolling process and progress [J]. Iron & Steel Technology,2013, (2): 34-37.
［5］董永刚, 张文志, 宋剑锋. 圆-椭圆-圆孔型中轧制合金钢棒材时宽展迭代模型的建立[J]. 塑性工程学报, 2009, 16(2): 90-95.Dong Y G, Zhang W Z, Song J F. Accurate spread prediction model in alloyed rod rolling by round-oval-round pass sequence [J]. Journal of Plasticity Engineering, 2009, 16(2): 90-95.
［6］李睿. 线材轧制规程优化系统的研究与开发[D]. 吉林:东北电力大学, 2009.Li R. Research and Development of Wire Rolling Schedule Optimization Design System[D]. Jilin: Northeast Dianli University,2009.
［7］刘硕, 李小平, 彭成允, 等. 基于ABAQUS曲底槽型件热冲压成形模拟分析[J]. 锻压技术, 2015, 40(5): 74-79.Liu S, Li X P, Peng C Y, et al. Simulation analysis on the hot stamping of groove parts with curved bottom based on ABAQUS [J]. Forging & Stamping Technology, 2015, 40(5): 74-79.
［8］何波, 周泓江, 李建辉, 等. 镍基高温合金叶轮熔模铸造过程的数值模拟[J]. 稀有金属, 2015, 40(3): 227-235.He B,Zhou H J,Li J H, et al. Numerical simulation of investment casting process of nickel-based super alloy impeller[J]. Chinese Journal of Rare Metals, 2015, 40(3): 227-235.
［9］马劲红, 陶彬, 姚晓晗, 等. H型钢轧制规程对端部舌形的影响[J]. 锻压技术, 2014, 39(8): 37-41.Ma J H, Tao B, Yao X H, et al. Effect of rolling scheme on the head tongue shape of H-beam [J]. Forging & Stamping Technology, 2014, 39(8): 37-41.

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