Method for Manufacturing Cold-Rolled Steel Sheet for Shrinkage Band of Braun Tube with Superior Magnetic Shielding Property and Tensile Strength

摘要

The present invention for producing a cold-rolled steel sheet for shrink band used for a color cathode-ray tube such as a television, computer monitor, relates to a method, the chemical composition and manufacturing process By closely examine the relationship between the factor and by properly controlling the chemical composition and production conditions optimal for the magnetic and excellent to provide a cold-rolled steel sheet for a high intensity CRT shrink band, the purpose is . is in ; in the present invention weight%, C: 0.002 ~ 0.008%, Mn: 0.5 ~ 2.0%, Si: less than 1.5%, s-Al: 0.05 ~ 0.5%, N: 0.005% or less, and other unavoidable impurity elements, and a hot rolling by heating a steel slab consisting of a balance of Fe at a certain temperature or less and hot finish rolling at a certain temperature range, and then, cold rolling and recrystallization high intensity for a cathode ray tube superior shrink band to a magnetic annealing at a temperature more than and a method for producing a cold-rolled steel sheet as a base.