Transactions of Materials and Heat Treatment

Title：Design and application on steel wire wound pre-stressed multi-layered clearance fitting extrusion cylinder

Authors： Meng Keke1 2 Zhang Lei3 Chen Xiangang2 Lei Bingwang2

Unit： 1.School of Mechanical Engineering Inner Mongolia University of Science & Technology 2. Inner Mongolia North Heavy Industries Group Corp. Ltd. 3. Department of Mechanical Engineering Tsinghua University

KeyWords： extrusion cylinder steel wire winding clearance fitting pre-stressed coefficient clearance amounts between inner and middle cylinders

ClassificationCode：TG375

year,vol(issue):pagenumber：2025,50(3):176-180

Abstract：

It aims to reduce the difficulty of assembly and manufacturing for the prestressed wire wound heavy-duty extrusion cylinder with multi-layer combination by optimizing the interlayer matching mode of cylinder. Firstly, according to the constant shear stress winding method, the overall structure of a type of pre-stressed wire wound extrusion cylinder with multi-layer clearance assembly was designed by using theoretical calculation. Then, the influences of different interference amounts or clearance amounts between inner and middle cylinders on the stress state and bearing capacity of the prestressed wire wound extrusion cylinder with multi-layer clearance assembly were analyzed by using the finite element numerical simulation method. A design method of multi-layer clearance-assembled extrusion cylinder based on prestressed wire winding was proposed, and the functional relationship between the prestressed coefficient and the matching amount between inner and middle cylinders was clarified. This method can not only lower the manufacturing and assembly difficulty of composite cylinder, but also ensure the prestressed state of the extrusion cylinder. Finally, the actual production tests demonstrate the reliability of the design method for the prestressed wire wound extrusion cylinder with multi-layer clearance assembly.

Funds：

国防基础科研计划(JCKY2022208A002)

作者简介：孟可可（1986-），男，博士，副教授 E-mail：mengkk@imust.edu.cn 通信作者：陈献刚（1984-），男，硕士，正高级工程师 E-mail：289057628@qq.com

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