Manufacturing method of soft tin plated disc by low temperature hot rolling

摘要

The present invention relates to a method for producing a soft tin plated disc, and an object thereof relates to a method for producing a tin plated plate for soft surface treatment which has excellent workability by low temperature hot rolling.;In order to achieve the above object, the present invention provides a soft tin plating disc, in weight%, C: 0,004% or less, Mn: 0.1-0.3%, P: 0.02% or less, S: 0.02% or less, solubility. Al: 0.02-0.08%, N: 0.004% or less, B: 0.001-0.003%, ultra-low carbon aluminum-kilted steel composed of balance Fe and other unavoidable impurities is homogenized at 1250 ° C or higher, and the ferrite single phase region is 750-880 ° C. After finishing hot rolling in the temperature range of, and then wound in a temperature range of 600-700 ° C., cold rolling is performed at a typical reduction ratio of 85-95%, followed by cold annealing continuously in the temperature range of 680-700 ° C. The manufacturing method of the soft tin-plated negative electrode by the above is made into the technical summary.