专利名称：METHOD FOR PRODUCING A RING-PULL
TOP AND USE OF A STEEL SHEET PROVIDEDWITH A PRODUCTIVE LAYER FOR A RING-PULL TOP
发明人：Karl Ernst Friedrich,Dirk Matusch,Burkhard
Kaup,Reiner Sauer
申请号：US14367707申请日：20121002
公开号：US20150258599A1公开日：20150917
专利附图：
摘要：The invention relates to the use of a steel sheet provided with a protectivelayer for producing a ring-pull top or a can having a ring-pull top, where the steel sheet ismade of an unalloyed or low-alloy steel having a carbon content of less than 0.1% byweight, and also an associated process. The problem proceeding from known steelsheets 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 sheetbeing recrystallizingly heat treated at a heating rate of more than 75 K/s and after therecrystallizing heat treatment cooled at a cooling rate of at least 100 K/s and thencoated with the protective layer.
申请人：ThyssenKrupp Rasselstein GmbH
地址：Andernach DE
国籍：DE
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