文献类型：期刊文献

英文题名：Study on hydro-forming technology of manufacturing bimetallic CRA-lined pipe

作者：Wang, Xuesheng[1]; Li, Peining[2]; Wang, Ruzhu[1]

机构：[1]Shanghai Jiao Tong Univ, Sch Mech & Power Engn, Inst Refrigerat & Cryogen, Shanghai 200030, Peoples R China;[2]E China Univ Sci & Technol, Sch Mech Engn, Shanghai 200237, Peoples R China

年份：2005

卷号：45

期号：4-5

起止页码：373

外文期刊名：INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE

收录：;EI(收录号：2005058820256);WOS:【SCI-EXPANDED(收录号:WOS:000227139000002)】；

语种：英文

外文关键词：CRA-lined pipe; hydro-forming; residual contact pressure; strain

摘要：An improved hydraulic expansion device for manufacturing CRA-lined pipe has been proposed and developed to overcome the disadvantages in existing fabricating technologies. The mechanism of hydraulic expansion method is diagrammatized, as well as the stress and strain in the liner and the outer pipe have been analyzed theoretically during the hydro-forming process. According to the true stress strain curve of pipe materials, the more accurate calculating formula relating hydro-forming pressure and residual contact pressure between the liner and the outer pipe is obtained. The theoretical analysis is verified by experimental investigation, the test results demonstrate that the new technology is feasible and can be applied in industrial production. (C) 2004 Elsevier Ltd. All rights reserved.