US 12,453,995 B2
Method for manufacturing an aluminium tube, a method for manufacturing an aluminium slug, an aluminium tube and an aluminium slug
Thierry Bitout, Hradec Kralove (CZ); Oliver Glitzner, Wilhelmsburg (AT); and Alexander Wimmer, Weinburg (AT)
Assigned to TUBEX TUBENFABRIK WOLFSBERG GMBH, St. Stefan (AT)
Appl. No. 17/769,128
Filed by TUBEX Tubenfabrik Wolfsberg GmbH, St. Stefan (AT)
PCT Filed Oct. 16, 2020, PCT No. PCT/EP2020/079221
§ 371(c)(1), (2) Date Apr. 14, 2022,
PCT Pub. No. WO2021/074384, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 19203569 (EP), filed on Oct. 16, 2019.
Prior Publication US 2023/0101127 A1, Mar. 30, 2023
Int. Cl. B21C 23/00 (2006.01); B21C 23/08 (2006.01); C22C 1/02 (2006.01); C22C 21/00 (2006.01); C22F 1/04 (2006.01)
CPC B21C 23/002 (2013.01) [B21C 23/085 (2013.01); C22C 1/026 (2013.01); C22C 21/00 (2013.01); C22F 1/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A squeezable or collapsible aluminium tube having a shoulder and a neck, wherein the aluminium tube is produced or producible by impact extrusion of a slug and comprises an aluminium alloy consisting of:
>98.4% by weight of Al,
0.10% by weight to 0.30% by weight of Si,
0.25% by weight to 0.45% by weight of Fe,
0.01% by weight to 0.08% by weight of Cu,
0.15% by weight to 0.40% by weight of Mn,
at most 0.15% by weight of Mg,
at most 0.05% by weight of Zn,
at most 0.05% by weight of Cr,
at most 0.05% by weight of Ni,
at most 0.05% by weight of Ti and
at most 0.05% by weight of other impurities,
wherein the aforementioned ingredients of the aluminium alloy add to 100% by weight,
the squeezable or collapsible tube having a folded or crimped end which creates a seal.