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    • 4. 发明公开
    • THICK STEEL PLATE MANUFACTURING METHOD
    • HERSTELLUNGSVERFAHRENFÜRDICKE STAHLPLATTE
    • EP3187275A4
    • 2017-09-06
    • EP15836450
    • 2015-08-14
    • JFE STEEL CORP
    • TAMURA YUTAADACHI KENJI
    • B21B45/08B21B1/38B21B45/02B21B45/06
    • B21B1/38B21B45/02B21B45/06B21B45/08
    • It is an object to provide a method for manufacturing a steel plate that provides a high-quality steel plate having less variation in quality. A method for manufacturing a steel plate, which performs a hot rolling step, a hot correction step, and an accelerated cooling step in this order, the method further including a descaling step in which jetting of descaling water is performed two times between the hot correction step and the accelerated cooling step, wherein, in the descaling step, energy density of the descaling water that is jetted to a surface of the steel plate is greater than or equal to 0.07 J/mm 2 in total for the jetting performed two times, second-descaling water is jetted after 0.5 s or more after jetting first-descaling water, and a surface temperature of the steel plate just before the second-descaling water is jetted is lower than or equal to a Ar 3 transformation point.
    • 本发明的目的是提供一种制造钢板的方法,该方法提供质量差异较小的高质量钢板。 一种钢板的制造方法,依次进行热轧工序,热修正工序和加速冷却工序,所述钢板的制造方法还包括除氧化皮工序,在所述除锈工序中,在所述热修正工序之间进行2次除鳞水的喷射 其中,在除鳞步骤中,喷射到钢板表面的除鳞水的能量密度对于进行两次喷射而言总计大于或等于0.07J / mm 2, 在喷射第一去氧化皮水之后0.5秒以上喷射二次除鳞水,并且喷射二次除鳞水之前的钢板表面温度低于或等于Ar 3相变点。
    • 7. 发明公开
    • HOT ROLLED SLAB IMPACT TYPE MECHANICAL SCALE REMOVAL DEVICE
    • VORRICHTUNG ZUR机械手ENTFERNUNG VON ABLAGERUNGEN VON EINER HEISSGEWALZTEN PRALLPLATTE
    • EP2743011A1
    • 2014-06-18
    • EP12873129.6
    • 2012-09-24
    • Baoshan Iron & Steel Co., Ltd.
    • XIANG, ShunhuaWEN, Hongquan
    • B21B45/06
    • B21B45/08B21B45/0218B21B45/04B21B45/06Y10T29/4544
    • A hot rolled slab impact type mechanical scale removal device comprises a front cooling water nozzle group (4), an impact type scale removal gear roller group (5), a roller cooling device (6) and a cleaning water nozzle group (9). A slab (1) moves on a slab roller table (3). The front cooling water nozzle group (4), the impact type scale removal gear roller group (5) and the cleaning water nozzle group (9) are arranged in sequence along the movement direction of the slab. The impact type scale removal gear roller group (5) is arranged on a support seat (8). The cooling water nozzle of the roller cooling device (6) is arranged corresponding to the impact type scale removal gear roller group (5). According to the scale removal device, the oxide skins can be clearly removed, the temperature of the continuous casting slabs can be reduced and the hot rolling quality is improved.
    • 热轧板式冲击式机械除垢装置包括前冷却水喷嘴组(4),冲击式除垢齿轮组(5),辊冷却装置(6)和清洗水喷嘴组(9)。 板坯(1)在板轧辊台(3)上移动。 前冷却水喷嘴组(4),冲击式除垢齿轮组(5)和清洗水喷嘴组(9)沿板坯移动方向依次布置。 冲击式除垢齿轮组(5)布置在支撑座(8)上。 滚子冷却装置(6)的冷却水喷嘴对应于冲击式除垢齿轮组(5)而布置。 根据除垢装置,可以清楚地除去氧化皮,可以降低连铸坯的温度,提高热轧质量。