双金属复合管复合机理及制备工艺研究进展

Research Progress in Bonding Mechanism and Preparation Process of Bimetallic Clad Pipes

总结了双金属复合管界面结合机理,系统介绍了目前国内外双金属复合管的主要制备工艺,并且根据初始时基体与覆层金属物理状态的不同,将现有制备工艺分为固-固相复合法、固-液相复合法、液-液相复合法以及其他复合法。对比分析了各种制备工艺的成形原理和主要特点,最后结合发展现状及未来工业应用需求,对双金属复合管工业化进程中将面临的问题进行了展望。

The interface bonding mechanism of bimetallic clad pipes was reviewed,and main preparation processes of bimetallic clad pipes at home and abroad were described systematically.According to the difference in the physical state of the substrate and cladding metal at the initial stage,the existing preparation processes are divided into four categories,solid-solid bonding method,solid-liquid bonding method,liquid-liquid bonding method and other bonding method.The forming principles and main characteristics of various preparation processes were analyzed comparatively.Finally,the prospects for the major issues that would be faced in the industrialization of bimetallic clad pipes were forecasted combined with the development status and future industrial application requirements.