Gasket for heat exchanger and method and apparatus for...

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

Patent

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Details

F16J 9/00 (2006.01) B21D 7/02 (2006.01) B21D 13/04 (2006.01) B21D 21/00 (2006.01) B21D 43/11 (2006.01) B21D 53/16 (2006.01) B29C 43/18 (2006.01)

Patent

CA 2338368

An apparatus (10) for manufacturing a large-diameter gasket, in which a pair of holding presses (50, 66) have press members (58, 74) which selectively bear against an elongate band (16) while a bending press (90) pivots against a portion of the band. A drive press (20) bears against a portion of the band (16), and with the holding presses (50, 66) released, moves longitudinally to move a next portion of the band (16) into the bending press (90). A method of manufacturing the large-diameter gasket is disclosed, together with a jig (140) for applying a patch of sealing material to a joint (184) formed between opposing distal ends (178,180) of the gasket (170).

L'invention concerne un appareil permettant de fabriquer un joint de grand diamètre, comprenant une paire de presses de maintien (50, 66) pourvues d'éléments de pressage (58, 74) qui s'appliquent sélectivement contre une bande allongée (16), pendant qu'une presse de cintrage (90) pivote autour d'une partie de la bande. Une presse d'entraînement (20) s'applique contre une partie de la bande (16), et les presses de maintien (50, 66) étant libérées, cette presse d'entraînement se déplace longitudinalement, de manière à amener une partie suivante de la bande (16) dans la presse de cintrage (90). L'invention concerne également un procédé de fabrication du joint à grand diamètre ainsi qu'un montage (140), permettant d'appliquer une pièce de matériau d'étanchéité dans un intervalle (184) formé entre les extrémités distales opposées du joint (170).

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