发明名称 SPIRAL-WOUND DIAPHRAGM BELLOWS, AND METHOD OF MAKING SUCH A DIAPHRAGM BELLOWS
摘要 A diaphragm bellows includes a spiral-wound, pre-profiled metal strip having neighboring turns which are connected by a continuous welding seam in an area of an outer diameter or inner diameter of the metal strip. Neighboring flanks of the metal strip enter a region of the welding seam at an angle of less than 60°.
申请公布号 US2008264509(A1) 申请公布日期 2008.10.30
申请号 US20080110726 申请日期 2008.04.28
申请人 WESTFALIA METALLSCHLAUCHTECHNIK GMBH & CO. KG 发明人 WEISS MATTHIAS;MUNKER KARL-HEINZ;BAUMHOFF DIETMAR;SELTER OLIVER;HAUK STEFAN;GERHARD ANDREAS;SCHENK KARSTEN
分类号 F16L11/15;B21C37/12;B23K26/28 主分类号 F16L11/15
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