21機架張力減徑機橢圓孔型的有限元分析

FEA of Oval Pass of 21-stand Stretch Reducing Mill

摘要: 根據(jù)鋼管在張力減徑時的變形特點,利用ANSYS軟件對21機架張力減徑機進行三維建模有限元分析,模擬荒管在減徑過程中的變形過程,比較圓孔型參數(shù)模擬和橢圓孔型參數(shù)模擬時荒管產(chǎn)生“內(nèi)六方”的趨勢和壁厚變化情況。分析認為,采用橢圓孔型參數(shù)模擬時,荒管產(chǎn)生“內(nèi)六方”的趨勢較小,且壁厚波動也較小。

Abstract: According to the deformation characteristics of the steel pipe during the stretch-reducing process,the rolling process of the 21-stand stretch reducing mill is finite element analyzed (FEA) with the 3D model as set up via the ANSYS software.The analysis involves simulating the deformation course of the pipe being reduced,and a comparison of the pipe hexagonal ID occurrence trend and wall thickness variation resulting from the round pass parameter simulation to those resulting from the oval pass parameter simulation,which leads to the conclusion that in case of the oval pass parameter simulation,the occurrence trend of the hexagonal ID formation is smaller,and the wall thickness variation is also rather less.