Blister-resistant steel sheet and method for producing thereof
    1.
    发明授权
    Blister-resistant steel sheet and method for producing thereof 失效
    耐水疱钢板及其制造方法

    公开(公告)号:US5356493A

    公开(公告)日:1994-10-18

    申请号:US86507

    申请日:1993-07-01

    IPC分类号: C22C38/14 C21P8/04 C22C38/06

    CPC分类号: C22C38/14

    摘要: Blister-resistant steel sheet consists essentially of 0.0005 to 0.003 wt. % C, 0.10 to 2.2 wt. % Mn, 0.6 wt. % or less Si, 0.07 wt. % or less P, 0.025 wt. % or less S, 0.02 to 0.06 wt. % of sol. Al, 0.0035 wt. % or less N, 0.003 wt. % or less O, [(48/14)N+(48/32)S+4.times.(48/12)C] wt. % or less Ti and the balance being Fe and inevitable impurities; and smaller one of either Ti (wt. %) or [(48/14)N+(48/32)S] (wt. %) being [0.002 t.sup.2 +0.003] or more, where t is a thickness (mm) of the steel sheet. Method for producing blister-resistant steel sheet comprises preparing a cold rolled steel sheet having the composition of described above, and continuously annealing or continuous hot dip galvanizing by heating the steel sheet from room temperature to 650.degree.-720.degree. C. at a rate of 20.degree. C. sec or more and further to the soaking temperature above recrystallization temperature at a rate of 1.degree.-5.degree. C./sec.

    摘要翻译: 防水钢板基本上由0.0005〜0.003重量% %C,0.10〜2.2重量% %Mn,0.6重量% %以下Si,0.07重量% %以下P,0.025重量% %以下S,0.02〜0.06重量% %的溶胶。 Al,0.0035wt。 %以下N,0.003重量% %或更少的O,[(48/14)N +(48/32)S + 4x(48/12)C] Ti%以下,余量为Fe和不可避免的杂质; Ti(重量%)或[(48/14)N +(48/32)S](重量%)中的较小的一个为[0.002t2 + 0.003]或更大,其中t是 钢板。 制造耐泡性钢板的方法包括制备具有上述组成的冷轧钢板,并且通过将钢板从室温加热至650-720℃,连续退火或连续热浸镀锌,速率为 20℃以上,进一步在1℃〜5℃/秒的重结晶温度以上的均热温度。