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    • 1. 发明公开
    • PICKLING METHOD FOR STEEL PLATES, AND PICKLING APPARATUS
    • BEIZVERFAHRENFÜRSTAHLPLATTEN UND BEIZVORRICHTUNG
    • EP2302102A4
    • 2015-07-15
    • EP09754861
    • 2009-05-28
    • NIPPON STEEL & SUMITOMO METAL CORP
    • UEMURA KENICHISAWADA DAISUKE
    • C23G1/08C23G3/00C23G3/02
    • C23G3/027C22C38/02C23G1/00C23G1/08C23G3/021
    • The present invention provides a pickling method of steel sheet and pickling system of steel sheet able to efficiently remove oxide scale from steel sheet. That is, it provides a continuous pickling method of steel sheet having a step A of pickling the steel sheet in a pickling tank, a step B of blowing gas toward at least part of the surfaces of the steel sheet in the air after the step A, and a step C of pickling the steel sheet in a pickling tank after the step B, wherein at step B, the steel sheet is temporarily taken out from the pickling solution and gas is blown to at least part of the surfaces of the steel sheet in the air so as to evaporate the acid solution deposited on the surface of the steel sheet and locally increase the acid concentration to thereby efficiently remove even the stubborn Si oxides included in the oxide scale.
    • 本发明提供一种能够有效地从钢板上去除氧化皮的钢板和酸洗系统的酸洗方法。 也就是说,提供了具有酸洗槽中的钢板的步骤A的钢板的连续酸洗方法,在步骤A之后向空气中的钢板表面的至少一部分吹送气体的工序B 以及在步骤B之后酸洗槽中的钢板酸洗步骤C,其中在步骤B中,钢板从酸洗液中暂时取出,气体被吹送到钢板的至少一部分表面 在空气中蒸发沉积在钢板表面上的酸溶液,并局部地提高酸浓度,从而有效地除去氧化皮中包含的顽固的Si氧化物。