Once cold gewaltztes steel strip for shadow mask and method for its production

Manufacturing method for a cold rolled steel strip in one step for a shadow mask, comprising the following components in weight percent: C ≤ 0.002 Ti 0.035 to 0.05 Mn 0.10-0.25 al 0.03-0.06 Cr 0.002-0.03 Si ≤ 0.03 N ≤ 0.003 P ≤ 0.012 S ≤ 0.01 O ≤ 50.004, the balance being Fe and unavoidable impurities; and wherein streaks on the surface of the steel strip in the rolling direction be substantially avoided, and wherein the wave height of the steel strip is not greater than 2 mm; and wherein the manufacturing method comprises the steps of: a. Melting, casting and hot rolling, the finishing temperature of hot rolling within the range of 880 ° C to 900 ° C falls, and the coiling temperature in the range of 510 ° C to 610 ° C; b. Pickling and cold rolling; c. Deburring with advance position and cutting of edge defects such as cracks and ridges; d. continuous ...