Method and apparatus for forming seal portion of laminated...

Details Method and apparatus for forming seal portion of laminated... Method and apparatus for forming seal portion of laminated...

B - Operations, Transporting

29

C

B29C 65/20 (2006.01) B29C 65/00 (2006.01) B29C 65/14 (2006.01) B65B 7/14 (2006.01)

Patent

CA 2192572

The synthetic resin at a projecting end portion (5) projected from a clamping device (9) is heated to melt, then the projecting end portion (5) is positioned in a press molding space, which comprises an opening between an aluminum foil layer (3c) of a laminated aluminum tube and a molding wall of the press molding space. The projecting end portion (5) is pressed and molded into a sealed portion in the press molding space. The tube produced with this method has a sealed portion (8) with a desired shape, the aluminum foil layer (3) at the sealed portion (8) being completely covered and encapsulated with the synthetic resin, and the density of the sealed portion (8) improves providing excellent sealing quality.

Le matériau en résine synthétique d'une partie d'extrémité (5) qui saille d'un montage par collier de serrage (9) est chauffé et porté à fusion. Cette partie d'extrémité saillante est ensuite pressée et moulée de manière qu'elle forme une partie d'obturation (8) à l'intérieur d'un espace de moulage par compression définissant une ouverture dans laquelle le matériau en résine synthétique s'introduit entre une couche de feuille d'aluminium (3c) et une surface de moulage, ce qui permet de donner ainsi à la partie d'obturation (8) la forme désirée et de recouvrir complètement la couche de feuille d'aluminium. En outre, on augmente la résistance du scellement en accroissant la densité par compression.

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