【摘要】 我国高速铁路的发展要求重轨生产必须实现高精度轧制。对使用半万能成品孔和全万能成品孔轧制高精度重轨产品的尺寸和形状精度进行了分析研究,提出轧制高精度重轨应采用全万能成品孔型。借助有限元分析软件ANSYS/LS-DYNA,对采用全万能成品孔来轧制高精度重轨的变形情况进行了模拟,模拟结果也证实了采用全万能成品孔的可行性。更多还原

【Abstract】 With the increasing demand of national high speed railroad,the heavy rail must be produced by high precision rolling technology.The finish size and shape of the heavy rail rolled with half-universal finish pass and universal finish pass are studied.The research shows that the universal finish pass is the best method to produce high precision heavy rail.A numerical simulation for heavy rail in universal finish pass has been conducted by finite element method.The simulation results have proven the feasibility of rolling high precision heavy rail with universal finish pass.更多还原