钛合金无缝管斜连轧新工艺研究  

New Process Research on Tandem Skew Rolling of Titanium Alloy Seamless Tube

作　　者：陈晨 双远华[2] 陈建勋 苟毓俊 李潮 Chen Chen;Shuang Yuanhua;Chen Jianxun;Gou Yujun;Li Chao(School of Mechanical Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;College of Material Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;School of Transportation and Logistics,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学机械工程学院,山西太原030024 [2]太原科技大学材料科学与工程学院,山西太原030024 [3]太原科技大学交通与物流学院,山西太原030024

出　　处：《稀有金属材料与工程》2023年第3期959-967,共9页Rare Metal Materials and Engineering

基　　金：山西省科技重大专项(20191102009);山西省重点研发计划(201903D121049);太原科技大学博士科研启动基金(20202026);山西省高等学校科技创新项目(2021L312)。

摘　　要：针对钛合金材料热轧温度范围窄、温降快、变形抗力大等特点,将钛合金与无缝管斜连轧(TSR)新工艺有机结合并开展系统研究。根据斜连轧工艺结构与特点,分别构建连轧过程速度模型与张力模型;通过有限元数值模拟研究钛合金斜连轧过程金属变形机制、分析金属流动规律,获得其应力应变场、温度场、速度场分布及张力变化规律,基于有限元模拟进行现场实验研究。结果表明:初轧温度1050℃、合理匹配穿孔段与轧管段参数的情况下,可成功制备钛合金无缝管,且尺寸精度高、无明显表面缺陷。理论及实验分析证明斜连轧新工艺完全适用于钛合金无缝管材制备,同时缩短生产流程,提高生产效率。In view of the characteristics of narrow hot rolling temperature range,rapid temperature drop and large deformation resistance of titanium alloy,the new technology of seamless tube tandem skew rolling(TSR)and titanium alloy was combined and studied.According to the process structure and characteristics,the speed model and tension model of TSR were described.The deformation mechanism and the material flow law of titanium alloy in TSR process was studied by finite element numerical simulation.The distribution of stress and strain field,temperature field,velocity field and tension variation was obtained and the field test was conducted based on finite element simulation.The results show that when the initial rolling temperature is 1050℃and the parameters of the piercing section and rolling section are matched reasonably,the seamless titanium alloy tube with high dimensional accuracy and no obvious surface defects can be successfully obtained.The theory and experimental analysis show that the TSR process is completely suitable for the preparation of titanium alloy seamless tube,and the production process is shortened and the production efficiency is improved.

关 键 词：斜连轧 有限元模拟 钛合金 无缝管 

分 类 号：TG146.23[一般工业技术—材料科学与工程]