精密钛合金棒材三辊减定径机组
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摘要
结合三辊轧制的优点,提出在钛合金棒材精轧机之后增加1架弧三角孔型三辊轧机和4架三辊可调切线孔型减定径机组,来减小棒材尺寸公差,同时采用有限元分析对通过该机架的变直径棒材进行模拟轧制,最终获得了尺寸公差精度完全符合要求的产品。通过模拟和现场实测结果说明在钛合金棒材精轧机后增加三辊组合孔型轧机的方法是完全可以提高钛合金棒材的尺寸公差。
Combining the advantages of three roll rolling,one frame three roll rolling with arc triangle groove and four frame three roll rolling with adjustable tangent pass were puted after finishing roll. It can reduce the bar size tolerance. And while simulated the rolling through the several variable diameter bars using finite element method. The finally dimensional accuracy meets the requirements of products. The simulation shows that the method of adding three roller combined rolling mill in the finishing mill of titanium alloy bar can improve the dimensional tolerance of the titanium alloy bar.
Combining the advantages of three roll rolling,one frame three roll rolling with arc triangle groove and four frame three roll rolling with adjustable tangent pass were puted after finishing roll. It can reduce the bar size tolerance. And while simulated the rolling through the several variable diameter bars using finite element method. The finally dimensional accuracy meets the requirements of products. The simulation shows that the method of adding three roller combined rolling mill in the finishing mill of titanium alloy bar can improve the dimensional tolerance of the titanium alloy bar.
引文
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[2]李新林,彭兆丰.我国棒材和线材轧制技术30年[J].轧钢,2014,Vol.31(4):33~40.
[3]帅美蓉.钛合金棒材成型过程的有限元分析与试样研究[J].太原科技大学学报,2008,Vol.29(5):380~383.
[4]Ammerling W J,Alzetta F.3辊减定径机组(RSB)技术的最新应用[J].钢铁,2005,Vol.40(12):84~86.
[5]曹喜发.KOCKS棒线材轧机及理论(一)[J].钢铁厂设计,1992(2):28~46.
[6]曹喜发.KOCKS棒线材轧机及理论(二)[J].钢铁厂设计,1992(2):40~60.
[7]白新民.棒线材精密轧制—定径技术[J].河北冶金,1994(5):25~30.
[8]杨效勇.三辊定径机的工艺探讨[J].钢铁,2002,Vol.37(5):28~30.
[9]Y Lee.An analytical study of mean roll radius in rod rolling[J].Isij International,2001,Vol.41(11):1414~1416.
[10]D Yong-gang,S Jian-feng,Luo Guo-ling.Mathematicalmodelofneutrallineonthecontactzoneinalloyedbarrollingbythe round-oval-roundpasssequence[J].International Journal of Mechanical Sciences,2016,Vol.115~116(9):180~189.
[11]Mastsuo G.Application of Endless Bar Rolling System at Tokyo Steel.Iron and Steel Engineer,1999,Vol.76(3):27~30.
[12]闵新华,纪仁峰,张完良,等.TAI15钛合金棒材的热连轧工艺[J].中国有色金属学报,2010,Vol.20(z1):148~151.
[13]帅美蓉,黄庆学,秦建平,等.钛合金棒材轧制成型研究进展[J].材料导报A:综述篇,2012,Vol.26(2):111~115.
[14]杨守山.有色金属塑形加工学[M],北京:冶金工业出版社,1982.
[15]胡海萍,孙吉先,朱为昌,等.Y型三辊轧制变形过程有限元模拟与实验[J].北京科技大学学报,1999,Vol.21(4):372~375.