发明名称 Process for manufacturing a can with a polygonal cross section and a can with a polygonal cross section
摘要 A process for manufacturing a can with a polygonal cross-section and a can with a polygonal cross-section, the process comprising the steps of milling the cylindrical lateral wall of a tubular body (10), providing said wall with a plurality of circumferential ribs (20) which are continuous and axially spaced from each other and defined by a certain degree of radial plastic deformation of the respective circumferential region of the cylindrical lateral wall of the tubular body (10); expanding the formed tubular body (10), deforming it, in order to define longitudinal edges (12) in whose region the circumferential ribs (20) are eliminated; and double-seaming a bottom and an upper wall of the can to the tubular body (10). This process defines a can having any polygonal cross-section and circumferential ribs (20) on the lateral wall thereof, between the longitudinal edges (12).
申请公布号 US6712575(B1) 申请公布日期 2004.03.30
申请号 US20000424009 申请日期 2000.01.11
申请人 BRASILATA S.A. EMBALAGENS METALICAS 发明人 TUMA JOAO VINCENTE DE MASI;SOUZA JOSE AUGUSTO OLIVEIRA
分类号 B21D51/26;B65D6/02;(IPC1-7):B21D41/28;B21D41/30 主分类号 B21D51/26
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