发明名称 Manufacturing process to produce a necked container
摘要 The present invention provides a necking system including a plurality of necking dies each necking dies having an at least partially non-polished necking surface and a non-polished relief following the necking surface. The present invention further provides a method of necking a metal container including providing a metal blank; shaping the blank into a bottle stock; and necking the metal bottle stock, wherein necking includes at least one necking die having an at least partially non-polished necking surface.
申请公布号 US8322183(B2) 申请公布日期 2012.12.04
申请号 US20100767190 申请日期 2010.04.26
申请人 MYERS GARY L.;FEDUSA ANTHONY;DICK ROBERT E.;ALCOA INC. 发明人 MYERS GARY L.;FEDUSA ANTHONY;DICK ROBERT E.
分类号 B21D22/28 主分类号 B21D22/28
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