文献类型：期刊文献

中文题名：自紧密封不锈钢衬里复合管液压胀合研究

英文题名：RESEARCH ON HYDRAULIC EXPANSION PROCESS OF MANUFACTURING BIMETALLIC CRA-LINED PIPE WITH SELF-ENERGIZING SEAL

作者：王学生[1];王如竹[1];李培宁[2]

机构：[1]上海交通大学机械与动力工程学院,上海200030;[2]华东理工大学机械工程学院,上海200237

年份：2004

卷号：40

期号：5

起止页码：72

中文期刊名：机械工程学报

外文期刊名：Journal of Mechanical Engineering

收录：CSTPCD;;EI(收录号：2004368344949);Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：国家'九五'科技攻关资助项目(96-918-02-03)

语种：中文

中文关键词：不锈钢衬里复合管;液压胀合;自紧式密封;残余接触压力

外文关键词：CRA-lined pipe;;Hydraulic expansion;;Self-energizing seal;;Residual contact pressure

摘要：研制开发了一种径向自紧密封式不锈钢衬里复合管液压胀合成形装置.讨论了复合管液压胀合成形过程的原理,并采用弹塑性理论分析了其在胀合成形过程中内管及外管的应力应变状态.利用变形协调条件,得出了胀合压力pe与复合管内外管之间残余接触压力pr*的理论计算公式,并通过试验对公式进行了验证.结果表明该装置结构及其计算方法均可适于工程应用.
The bimetallic CRA-lined pipe, which has an inner layer made of a very resistal CRA and an outer layer made of low-cost steel, is utilised in oil production, in nuclear power plants and in refining industry increasingly. A new kind of hydraulic expansion device of manufacturing bimetallic CRA- lined pipe is researched and developed. Based on the elasticity- plasticity theory the stress and strain of the inner and outer pipe are analyzed theoretically during hydro-forming expansion process. By using deformation condition of compatibility the calculating formulas related hydro-forming pressure to the residual contact pressure between inner and outer pipe is de- rived. The theoretical analysis is verified by experimental re- sults.