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).
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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