A method for preparing a pull-tab, and using a protective layer provided with a steel sheet for making a pull-tab

2011 
The invention relates to the use of a provided with a protective layer of the steel sheet for making a pull-tab or a can with an easy open end, wherein the steel sheet is made of an unalloyed or low-alloy steel with a carbon content of less than 0.1 wt .-%, and a related method. The starting from known steel sheets having protective layer placing itself object to provide a steel sheet can be produced with the easy open end, which have a lower pullout force at a constant residual wall thickness of the score is achieved in that the steel sheet recrystallization at a heating rate of more than 75 K / s has been annealed and cooled after recrystallizing annealing at a cooling rate of at least 100 K / s, and then coated with the protective layer.
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