PRODUCTION OF STEEL PLATE FOR ENAMEL HAVING EXCELLENT RESISTANCE TO FISHSCALING

摘要

PURPOSE:To obtain a steel plate having excellent resistance to fishscaling at a low cost by limiting the contents of C and Al in a steel component and further casting the steel continuously at a limited casting speed then rolling the cast steel. CONSTITUTION:Molten steel which contains 0.01-0.05wt% C and 0.003-0.02% Al as basic components and consists of the balance substantially Fe is cast continuously at 1.4-2.0m/min casting speed. The cast slab is hot rolled or is further subjected to cold rolling and recrystallization annealing. Since the place for occlusion of hydrogen is formed by this method at the point of the time when the continuous casting slab is produced, the hot rolled steel plate and cold rolled steel plate having excellent resistance to fishscaling are produced irrespectively of the coiling temp. in the hot rolling stage.