| 摘要 |
PURPOSE:To obtain a steel plate to be enamelled capable of being calcined as cold rolled and excellent in flatness by cold rolling a hot rolled continuously cast billet having specific composition by controlling the total sum of the heights of edge waves at the one side of the longitudinal direction of the plate to a specified quantity or below. CONSTITUTION:0.04-0.02% B (by weight hereunder) is added to a molten steel consisting of <0.02 C, <0.03 Si, 0.05-0.5 Mn, <0.02 Al, 0.004-0.012 Ni, and the balance Fe to obtain a continuously cast billet. After hot rolling the cast billet, it is cold rolled by regulating the total sum of the heights of edge waves at one side of the longitudinal direction of the plate to <=15mm./m. When the totla sum of the edge wave heights exceeds 15mm./m, the adhesive strength between the plate and a backing material is decreased. |
