发明名称 |
VERFAHREN ZUR HERSTELLUNG EINER TIEFZIEHDOSE AUS BLECH. |
摘要 |
Method of producing deep drawn cans from sheet consists of drawing the can in a first stage using a drawing ring provided with a recessed front end. During this stage only the drawing opening part whose diameter corresponds to that of the can is used to produce a can part with the finished length and diameter. In the second stage the side edge located between the ring and holder is moved downwards to shape the step-like edge by deforming it between recessed part and stepped stamp.
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申请公布号 |
DE3870907(D1) |
申请公布日期 |
1992.06.17 |
申请号 |
DE19883870907 |
申请日期 |
1988.02.02 |
申请人 |
RASSELSTEIN AG, 5450 NEUWIED, DE |
发明人 |
ERFGEN, WERNER, W-5450 NEUWIED, DE |
分类号 |
B21D22/22;B21D22/28;B21D51/26;(IPC1-7):B21D22/28 |
主分类号 |
B21D22/22 |
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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