TREATED SURFACE STEEL
    1.
    发明公开

    公开(公告)号:EP3354772A1

    公开(公告)日:2018-08-01

    申请号:EP17789088.6

    申请日:2017-03-07

    IPC分类号: C23C28/00 C23C2/12 C23C22/42

    摘要: Provided is a surface-treated steel material having cut edge corrosion resistance that is equal to or more than that of a chromate treatment without use of hexavalent chromium.
    The surface-treated steel material includes a coating film formed on a surface of a steel material through a plating layer. The plating layer is obtained by immersing the steel material in a galvalume bath containing Mg. In the surface-treated steel material, the coating film is formed using a coating composition containing a coating film-forming resin, a cross-linking agent, a predetermined vanadium compound, and trimagnesium phosphate; the vanadium compound is a compound satisfying a predetermined electrical conductivity; the content of the vanadium compound is restricted to a predetermined amount relative to 100% by mass of a total of a solid content of the coating film-forming resin and a solid content of the cross-linking agent; the vanadium compound satisfies a predetermined pH; and the content of the trimagnesium phosphate is a predetermined amount relative to 100% by mass of the total of the solid content of the coating film-forming resin and the solid content of the cross-linking agent.

    WIPING DEVICE AND HOT-DIP PLATING DEVICE USING SAME
    4.
    发明公开
    WIPING DEVICE AND HOT-DIP PLATING DEVICE USING SAME 有权
    WISCHVORRICHTUNG UND FEUERVERZINKUNGSVORRICHTUNG DAMIT

    公开(公告)号:EP2759618A1

    公开(公告)日:2014-07-30

    申请号:EP12832927.3

    申请日:2012-09-21

    IPC分类号: C23C2/20

    摘要: A wiping device which blows a wiping gas toward a steel sheet from a pair of wiping nozzles disposed on both sides of the steel sheet so as to face sheet surfaces of the steel sheet, wherein the steel sheet is interposed between the pair of wiping nozzles and is pulled from a hot dip coating bath, the device includes a suctioning tube, wherein: the suctioning tube is disposed on both sides in a width direction of a section of the steel sheet, the section being positioned between the pair of wiping nozzles, so that the suctioning tube is in parallel to the steel sheet; the suctioning tube has a suctioning port that suctions an air; the suctioning port is disposed to face a side end surface of the steel sheet; a cross-sectional shape of the suctioning tube has the largest dimension thereof along a pulling direction of the steel sheet.

    摘要翻译: 一种擦拭装置,其从设置在钢板两侧的一对擦拭喷嘴朝向钢板吹送擦拭气体,以便面对钢板的板表面,其中钢板插入在一对擦拭喷嘴和 从热浸镀浴中拉出,该装置包括抽吸管,其中:吸入管设置在钢板的一部分的宽度方向的两侧,该部分位于一对擦拭喷嘴之间,因此 吸入管与钢板平行; 抽吸管具有吸入空气的吸入口; 所述吸入口配置成与所述钢板的侧端面相对; 抽吸管的横截面形状沿着钢板的拉伸方向具有最大的尺寸。