发明名称 Fabrication of bent tubing
摘要 An approach to restoring the cross-section of a bent tube to circularity. The tube is placed into a fixture, so that pressurization does not remove the bend. Liquid is placed into the tube, and pressurized. Pressure is increased until the wall of the tube undergoes plastic deformation, and becomes circular.
申请公布号 US6601423(B1) 申请公布日期 2003.08.05
申请号 US20020135948 申请日期 2002.04.30
申请人 GENERAL ELECTRIC COMPANY 发明人 PETERSON IVAN HARRY
分类号 B21D3/14;B21D26/02;(IPC1-7):B21D39/20 主分类号 B21D3/14
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