B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 15/09 (2006.01) B21D 51/26 (2006.01) B65D 1/00 (2006.01) B65D 8/16 (2006.01)
Patent
CA 2676298
Disclosed is a laminate steel sheet for a two-piece can having a high degree of processing and satisfying the requirements represented by the formulae shown below, wherein the centerline surface roughness (Ra) of the surface of a polyester resin layer constituting the laminate sheet is 0.2 to 1.8 µm inclusive: r1<=r, 0.1<=(r1/R)<=0.25 and 1.5<=[h/(R-r)]<=4 [wherein h: the height of a two-piece can, r: the largest radius, r1: the smallest radius, R: a radius of a unshaped, disk-like laminate at which the weight of the laminate steel sheet having the same weight as that of the can.
L'invention concerne une tôle d'acier stratifiée pour un bidon à deux pièces présentant un degré élevé de traitement et satisfaisant les exigences représentées par les formules mentionnées ci-après, dans lesquelles la rugosité de surface de ligne moyenne (Ra) de la surface d'une couche de résine de polyester constituant la feuille stratifiée est de 0,2 à 1,8 µm y compris : r1<=r, 0,1<=(r1/R)<=0,25 et 1,5<=[h/(R-r)]<=4 [où h: la hauteur du bidon à deux pièces, r: le rayon le plus grand, r1: le rayon le plus petit, R: un rayon d'un stratifié en forme de disque, non façonné, auquel le poids de la tôle d'acier stratifiée a le même poids que celui du bidon.
Iwasa Hiroki
Kitagawa Junichi
Kojima Katsumi
Kubo Hiroshi
Oshima Yasuhide
Jfe Steel Corporation
Moffat & Co.
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