发明名称 |
METHOD FOR EXPANDING THE DIAMETER OF A METAL CONTAINER |
摘要 |
A method of forming a metal container comprises: curling outward a top edge of the metal container to form a curl and expanding a diameter of a first section of the metal container to form a first expanded section; wherein at least part of the first expanded section is below the curl. In some embodiments, the steps of curling outward a top edge of the metal container to form a curl and expanding a diameter of a first section of the metal container to form a first expanded section are performed in a single stroke of a single die. In some embodiments, the step of expanding a diameter of a first section of the metal container to form an expanded section is performed after the step of curling outward a top edge of the metal container to form a curl. |
申请公布号 |
EP2794144(A2) |
申请公布日期 |
2014.10.29 |
申请号 |
EP20120818736 |
申请日期 |
2012.12.20 |
申请人 |
ALCOA INC. |
发明人 |
FEDUSA, ANTHONY J.;MYERS, GARY L.;HUNKER, GARY L.;DICK, ROBERT E. |
分类号 |
B21D51/26 |
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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