Pipe connnecting structure

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 33/00 (2006.01)

Patent

CA 2519878

The object is to provide a pipe connecting structure which can prevent electrical charge of a plastic coated metal pipe using a simple structure. In order to accomplish this object, beads (5a, 5b, 5c) are provided to protrude from the outer surface of the end of a plastic coated metal tube (3) obtained by coating the outside of a bare metal pipe (1) with a nonconductive plastic film (2), the plastic film (2) is removed from the tip of the bead (5a) to expose the circumferential surface of the bare metal pipe (1), the exposed portion is made to contact the inner surface of a conductive tube (4), thus connecting the plastic coated metal tube (3) and the conductive tube (4).

Cette invention concerne une structure de raccord de tuyau capable d'empêcher qu'un tube de métal enduit de résine ne soit chargé d'une structure simple. Selon cette invention : des nervures (5a, 5b, 5c) sont formées en saillie sur la surface périphérique externe de la partie d'extrémité du tube de métal enduit de résine (3), lequel est obtenu au moyen d'un procédé consistant à enduire la périphérie externe d'un tube de matériau métallique (1) d'une pellicule de résine non conductrice (2) ; la pellicule de résine (2) est éliminée au niveau de la partie pointe de la nervure (5a) afin que la surface périphérique du tube de matériau métallique (1) soit exposée ; puis le tube de métal enduit de résine (3) est raccordé à un tube conducteur (4), la partie exposée pouvant venir buter contre la surface interne du tube conducteur (4).

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