帅美荣,刘昊,李海滨,黄志权,黄庆学.基于“多线段三角孔型系统”轧制TC4合金棒材变形特征研究[J].稀有金属材料与工程,2017,46(10):2770~2774.[SHUAI Meirong,LIU Hao,LI Haibin,HUANG Zhiquan,HUANG Qing-xue.Deformation Feature of TC4 Rod Based on Multi-line Triangle Pass System[J].Rare Metal Materials and Engineering,2017,46(10):2770~2774.]
基于“多线段三角孔型系统”轧制TC4合金棒材变形特征研究
投稿时间:2015-10-13  修订日期:2016-04-15
中文关键词:  TC4棒材  多线段三角孔型  轧制稳定性  温度分布
基金项目:山西省自然科学基金研究项目(2014011026-1);校博士启动基金项目(20122037)
中文摘要:
      随着对高强度,高延展性钛及钛合金棒材的迅速需求,开发有色金属棒材多辊热连轧技术是非常必要的。本文作者研究在Y型三辊轧机上采用“多线段三角-圆”孔型系统生产钛合金棒材。采用ANSYS有限元软件模拟了TC4棒材在连轧过程中的变形特征,稳定性及温度分布;并在Y型连轧机上进行了试验验证。结果表明:带有凹面状的“多线段三角”孔型具有良好的对中性,能有效阻止轧件扭转或偏离轧制中心线,提高棒材轧制稳定性;此外,相对于“平三角-圆”孔型,采用这种孔型轧制棒材,显著降低了TC4合金棒材横截面的温度梯度,从而减少产品表面裂纹,提高表面质量。
Deformation Feature of TC4 Rod Based on Multi-line Triangle Pass System
英文关键词:TC4 rod  multi-line triangle pass  rolling stability  temperature distribution
英文摘要:
      The rapid increase of the demand for titanium and titanium alloy rods with high strength and fine ductility results in the necessity to develop a multi-roller mill and a hot continuous rolling process. In this study, the authors propose to produce TC4 alloy rod on Y-type mill with a multi-line triangle-round pass system. The deformation feature, rolling stability, and temperature distribution of TC4 alloy rod during the hot continuous rolling process are simulated with ANSYS software. The experiments are also conducted on Y-type mill. The results show that the multi-line triangle pass with concavity has a good centrality. Thus, the system can prevent TC4 rod to twist or deviate from the rolling direction, and the stability of the rolled rod can be improved. Compared with the conventional flat triangle-round pass system, the proposed pass system obviously decreases the temperature gradient along the cross section of TC4 rod, thereby reducing the possibility of surface cracking, and improving the surface quality of the final product.
作者单位E-mail
帅美荣 太原科技大学 材料科学与工程学院 ruoxin2001@163.com 
刘昊 山西省冶金设备设计理论与技术重点实验室  
李海滨 太原科技大学 材料科学与工程学院  
黄志权 山西省冶金设备设计理论与技术重点实验室  
黄庆学 太原科技大学 材料科学与工程学院  
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