发明名称 |
PROCESS FOR PRODUCING A RING-PULL TOP AND ALSO USE OF A STEEL SHEET PROVIDED WITH A PROTECTIVE LAYER FOR A RING-PULL TOP |
摘要 |
The invention relates to the use of a steel sheet provided with a protective layer for producing a ring-pull top or a can having a ring-pull top, where the steel sheet is made of an unalloyed or low-alloy steel having a carbon content of less than 0.1% by weight, and also an associated process. The problem proceeding from known steel sheets having a protective layer, namely to provide a steel sheet by means of which ring-pull tops which for a constant residual wall thickness of the notch line have a lower tear-off force can be produced by means of the ring-pull top, is solved by the steel sheet being recrystallizingly heat treated at a heating rate of more than 75 K/s and after the recrystallizing heat treatment cooled at a cooling rate of at least 100 K/s and then coated with the protective layer. |
申请公布号 |
CA2860090(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
CA20122860090 |
申请日期 |
2012.10.02 |
申请人 |
THYSSENKRUPP RASSELSTEIN GMBH |
发明人 |
FRIEDRICH, KARL ERNST;MATUSCH, DIRK;KAUP, BURKHARD;SAUER, REINER |
分类号 |
C21D1/26;B21D51/38;C21D1/42;C21D9/00;C22C38/00 |
主分类号 |
C21D1/26 |
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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