Titanium tube seal welding head enclosure

Details Titanium tube seal welding head enclosure Titanium tube seal welding head enclosure

B - Operations, Transporting

23

K

B23K 9/16 (2006.01) B23K 9/028 (2006.01) F28F 9/18 (2006.01)

Patent

CA 2142428

An arrangement for providing a seal fillet weld on a titanium tube sheet and tube includes an enclosure having a closed top and an open bottom opposite the top. The enclosure is positioned over the tubes to be welded on the tube sheet. A rotating seal welding head is contained within the enclosure for performing the welding operation on the tube and tube sheet. Trapped air is purged from the enclosure and inert gas is provided to the enclosure for creating an inert gas atmosphere for facilitating the welding operation. A rubber gasket is used to seal the enclosure to the tube sheet for ensuring a sealed inert atmosphere.

Cette invention concerne un appareil de soudage conçu pour déposer un cordon de soudure d'angle à la jonction d'un tube et d'une plaque tubulaire en titane et comportant une enceinte à dessus fermé et à fond ouvert. L'enceinte placée sur les tubes à souder à la plaque tubulaire renferme une tête de soudage rotative. Elle est vidée de l'air qui y est emprisonné et remplie d'un gaz inerte donnant une atmosphère propice à la bonne exécution de l'opération de soudage. Une garniture de caoutchouc assure l'étanchéité entre l'enceinte et la plaque tubulaire.

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