A method for producing a stainless steel by a twin roll type thin plate apparatus as a final cold rolled thin plate

摘要

The present invention relates to the provision of a method of making a stainless steel thin sheet cast by a twin roll thin sheet apparatus into a final cold rolled thin sheet without a delta ferrite and having a uniform grain distribution.;The method of the present invention is a method in which a thin plate cast by a twin roll type thin plate apparatus is annealed at a temperature in the range of about 1200C to 1300C for about 1 minute to 10 minutes and then subjected to cold rolling at a reduction rate of 50% The method comprising the steps of:;According to the present invention, when the thin plate is manufactured, the delta ferrite, which adversely affects the corrosion resistance and mechanical properties of the steel sheet in the final cold rolling structure, is completely removed and the uniform crystal grain size So that a cold rolled thin plate exhibiting excellent corrosion resistance and mechanical properties can be produced.