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    • 94. 发明授权
    • Production of a base steel sheet to be surface-treated which is to
produce no stretcher strain
    • 生产不需要担架的表面处理的基础钢板
    • US4586965A
    • 1986-05-06
    • US739623
    • 1985-05-31
    • Takashi ObaraKazunori OsawaMinoru NishidaKei SakataHideo Kuguminato
    • Takashi ObaraKazunori OsawaMinoru NishidaKei SakataHideo Kuguminato
    • C22C38/00C21D8/02C21D9/46C22C38/06
    • C22C38/06C21D8/0236C21D8/0226C21D8/0268
    • Disclosed herein is a method of manufacturing a base steel sheet, which method comprises combined steps of: not rolling a steel slab containing not more than 0.0070% by weight of C (hereinafter referred to briefly as "%"), not more than 0.1% of Si, not more than 0.5% of Mn, 0.010 to 0.080% of Al, not more than 0.0050% of N, not more than 0.030% of S provided that the ratio of Mn/S is not less than 10, and not more than 0.030% of P while the hot rolling being terminated at a finish temperature of not less than 800.degree. C.; cold rolling thus obtained hot rolled steel sheet in an ordinary manner; continuously annealing the cold rolled steel sheet in which heating is done up to a temperature from a recrystallization temperature to 800.degree. C., followed by cooling; and then temper rolling the annealing steel sheet at a reduction of not less than 7% by using two or more stand rolling mill, whereby the thus obtained base sheet, to be surface-treated may be utilized for a tinplate or a tin free steel in which no stretcher strain is formed even after baking treatment.
    • 本发明公开了一种制造基体钢板的方法,该方法包括以下组合步骤:不轧制含有不大于0.0070重量%的C的钢板(以下简称为“%”),不大于0.1重量% 的Si,不超过0.5%的Mn,0.010〜0.080%的Al,不大于0.0050%的N,不大于0.030%的S,条件是Mn / S的比例不小于10,而不是更多 超过0.030%的P,而热轧终止温度不低于800℃。 以通常的方式冷轧如此获得的热轧钢板; 对进行加热的冷轧钢板进行连续退火至从再结晶温度至800℃的温度,然后冷却; 然后通过使用两台以上的立式轧机将退火钢板以不小于7%的压下率进行回火处理,由此得到的待表面处理的基材可以用于马口铁或不含锡的钢 即使在烘烤处理之后也不形成担架应变。