Expansion die for manufacturing metal containers

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 51/26 (2006.01) B65D 1/16 (2006.01)

Patent

CA 2655908

The present invention provides an expansion die (5) for manufacturing containers including a work surface (10) including a progressively expanding portion (15) and a land portion (20),- and an undercut portion (25) positioned following the land portion (25) of the work surface (10). The present invention further provides a process for manufacturing shaped containers (A- N, 1- 3) including providing a container stock having a first diameter; expanding at least a portion of the container stock to a second diameter with at least one expansion die; and forming an end of the container stock to accept a container lid.

La présente invention fournit une matrice expansible pour fabriquer des contenants comportant une surface de travail incluant une partie s'étendant progressivement et une pastille de carte ; une partie de contre-dépouille positionnée à la suite de la pastille de carte de la surface de travail. La présente invention fournit en outre un procédé de fabrication des contenants faconnes comprenant la fourniture d'un stock de contenants ayant un premier diamètre ; l'expansion d'au moins une partie du stock de contenants à un second diamètre avec au moins une matrice expansible ; et la formation d'une extrémité du stock de contenants pour accepter un couvercle de contenant.

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