重型挤压机三层挤压筒装配应力计算及应用  

Assembly Stress Calculation and Application of Tri-layered Extrusion Container of Heavy-duty Extruder

作　　者：黄胜[1,2,3] 田怀前 柴星 丁建文[1,2] 杨建 李俊恒[1] Huang Sheng;Tian Huaiqian;Chai Xing;Ding Jianwen;Yang Jian;Li Junheng

机构地区：[1]中国重型机械研究院股份公司,陕西西安710018 [2]金属挤压与锻造装备技术国家重点实验室,陕西西安710018 [3]西北工业大学,陕西西安710072 [4]西南铝业(集团)有限责任公司,重庆401326

出　　处：《中国重型装备》2023年第3期6-9,45,共5页CHINA HEAVY EQUIPMENT

基　　金：陕西省重点研发计划(2022GY-302高性能工业铝材在线智能淬火数控装备);陕西省重点科技创新团队(2013-KCT-10)。

摘　　要：采用理论分析和数值模拟相结合的方法对重型挤压机的三层挤压筒的预应力计算进行了研究。提出了三层挤压筒过盈装配后层套间接触应力的计算表达式,给出了基于预应力的三层挤压筒装配后内筒内径变形量的表达式,并结合试验,对重型挤压机的三层式挤压筒的装配变形量进行了验证。研究成果应用于125 MN挤压机的挤压筒上,取得了良好效果。The assembly prestress calculation for the tri-layered extrusion container of the heavy-duty extruder was studied in combination with the theoretical analysis and numerical simulation.A calculation expression for the contact stress between the layers after interference assembly of the tri-layered extrusion container is proposed.Expressions are given for the deformation of the inner diameter of the inner container after assembly of the tri-layered container,and the assembly deformation was also verified in conjunction with the tests.The research findings were applied to the extrusion container of 125 MN extruder and good results were achieved.

关 键 词：挤压筒 装配预应力计算 理论分析 数值模拟 

分 类 号：TG375.43[金属学及工艺—金属压力加工]