Press tool and method for connecting tubular elements

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 39/04 (2006.01) B21D 22/10 (2006.01) B25B 27/10 (2006.01) F16L 33/30 (2006.01)

Patent

CA 2219751

A pressing tool for joining a tubular element (1) to an element (2) arranged inside the tubular element (1) and that substantially fits its inner diameter has at least one pressing jaw and a ring-shaped pressure distributing element (3) arranged between the pressing jaw and the outer circumference of the tubular element. The pressure distributing element (3) behaves like an incompressible liquid, surrounds the junction area of the elements (1, 2) to be joined and distributes the pressure generated by the pressing jaw around the outer circumference of the tubular element. Also disclosed is a process for joining a tubular element to an element arranged inside the tubular element and that substantially fits its inner diameter. For that purpose, pressure is simultaneously and uniformly distributed around the circumference of the tubular element, so as to avoid leaks.

Cet outil de compression qui sert à relier un élément tubulaire (1) à un élément (2) situé à l'intérieur de l'élément tubulaire et dont le diamètre intérieur correspond pratiquement à celui de l'élément tubulaire, comprend au moins une mâchoire de compression et un élément annulaire distributeur de pression (3) situé entre la mâchoire de compression et le diamètre extérieur de l'élément tubulaire. Cet élément distributeur de pression (3) se comporte comme un liquide incompressible, entoure la zone de liaison des éléments à relier (1, 2) et distribue la pression générée par les mâchoires de compression sur toute la circonférence extérieure de l'élément tubulaire. L'invention concerne également un procédé de liaison d'un élément tubulaire à un élément situé à l'intérieur de l'élément tubulaire et dont le diamètre intérieur correspond pratiquement à celui de l'élément tubulaire. A cet effet, on exerce une pression simultanément et uniformément distribuée sur toute la circonférence de l'élément tubulaire de façon à éviter des fuites.

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