METHOD AND DEVICE FOR FORMING STEEL CONTAINER FOR STORAGE OF SUBSTANCE UNDER PRESSURE

摘要

The invention relates to a method for forming a steel container (1) having a curled open end, comprising the steps of : i) providing a steel cup (11); ii) deep drawing the steel cup (11) into a drawn container preform (12); iii) thin drawing the body of the drawn container preform; and iv) curling an open end of the drawn container preform by forming a precurl (16) and by curling the precurl (16) into an elongated curl (19), to an apparatus for forming a steel container (1), and to such steel container (1) and its preform.