发明名称 Method and apparatus for the manufacture of a heat exchanger
摘要 A method for the manufacture of a heat exchanger comprising an internal arrangement of general cylindrical shape constituted by winding in a spiral two parallel and adjacent portions of a first band, such as a metal sheet and a second band wound on this arrangement in order to form an outer casing constituting a collar or shell.
申请公布号 US4203205(A) 申请公布日期 1980.05.20
申请号 US19770864796 申请日期 1977.12.27
申请人 SPIREC L ECHANGEUR SPIRALE EVER CLEAN 发明人 JOUET, ETIENNE
分类号 B21D51/24;B21D53/02;F28D9/04;(IPC1-7):B23P15/26 主分类号 B21D51/24
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