发明名称 METHODE ET DISPOSITIF POUR LA FABRICATION D'UNE CARCASSE DE TUBE FLEXIBLE
摘要 The invention concerns a method for the continuous production of a flexible tube body from two stapled wires (9, 10) individually bent in bending means (7, 8), three stitches, unsupported by a mandrel, and such that the wires (9, 10) remain constantly in contact so as to optimise their resistance to external pressure. The bending means (7, 8) can be arranged with respect to each other without affecting the bending adjustment. The method consists in stapling the two spirals by elastically deforming the turns so that one crosses the other to cause the wires to overlap partially. The invention also concerns an equipment for producing such a flexible tube body.
申请公布号 FR2772293(A1) 申请公布日期 1999.06.18
申请号 FR19970016036 申请日期 1997.12.17
申请人 INSTITUT FRANCAIS DU PETROLE 发明人 AMAUDRIC DU CHAFFAUT BENOIT;MALLEN HERRERO JOSE;JUNG PATRICE JOEL LOUIS;ODRU PIERRE
分类号 F16L11/16;B21C37/12;(IPC1-7):B21C37/12;F16L11/08 主分类号 F16L11/16
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