Process for Manufacturing a Coated Metal Strip of Improved Appearance

    公开(公告)号:US20180291493A1

    公开(公告)日:2018-10-11

    申请号:US16004131

    申请日:2018-06-08

    Applicant: ArcelorMittal

    Abstract: An installation for continuous hot-dip coating of a metal strip is provided. The installation includes a tank containing a bath of molten metal, a metal strip running through the bath and a confined wiping device. The confined wiping device includes at least two wiping nozzles placed on each side of a path of the strip after the strip has left the bath of molten metal. Each nozzle has at least one gas outlet orifice and an upper face. The confined wiping device also includes a confinement box adjacent each upper face. The confinement boxes are open on a face which faces the strip. Each box includes at least one upper part and two lateral parts.

    ZnAlMg-Coated Metal Sheet with Improved Flexibility and Corresponding Manufacturing Process

    公开(公告)号:US20250003078A1

    公开(公告)日:2025-01-02

    申请号:US18883747

    申请日:2024-09-12

    Applicant: ArcelorMittal

    Abstract: A process for the manufacture of a pre-painted sheet. The process includes supplying a steel substrate, depositing a metallic coating on at least one face by hot-dipping of the substrate in a bath including 4.4% to 5.25% by weight aluminum and 0.3% to 0.56% by weight magnesium. The rest of the bath includes exclusively zinc, unavoidable impurities resulting from the process and optionally one or more additional elements including Si, Ti, Ca, Mn, La, Ce and Bi. The content by weight of each additional element in the metallic coating is less than 0.3% and the presence of nickel is excluded. The process further includes solidifying the metallic coating, surface preparation of the metallic coating and painting of the metallic coating. The present invention further provides a pre-painted sheet.

    Process for manufacturing a coated metal strip of improved appearance

    公开(公告)号:US11098396B2

    公开(公告)日:2021-08-24

    申请号:US16856232

    申请日:2020-04-23

    Applicant: ArcelorMittal

    Abstract: An installation for continuous hot-dip coating of a metal strip is provided. The installation includes a tank containing a bath of molten metal, a metal strip running through the bath and a confined wiping device. The confined wiping device includes at least two wiping nozzles placed on each side of a path of the strip after the strip has left the bath of molten metal. Each nozzle has at least one gas outlet orifice and an upper face. The confined wiping device also includes a confinement box adjacent each upper face. The confinement boxes are open on a face which faces the strip. Each box includes at least one upper part and two lateral parts.

    Method for Producing a Coated Metal Strip Having an Improved Appearance

    公开(公告)号:US20180002798A1

    公开(公告)日:2018-01-04

    申请号:US15703930

    申请日:2017-09-13

    Applicant: ArcelorMittal

    Abstract: A process for manufacturing a coated metal strip having a metallic corrosion protection coating is provided. The process includes passing a metal strip through a molten metal bath comprising from 2 to 8 wt % aluminum, 0 to 5 wt % magnesium, up to 0.3 wt % additional elements, and a balance including zinc and inevitable impurities, to yield a molten metal coated metal strip, wiping the molten metal coated metal strip with a nozzle spraying a gas on either side of the molten metal coated metal strip and cooling the coating in a controlled manner until the coating has completely solidified, to obtain the coated metal strip. A temperature of the molten metal bath is from 350 to 700° C., and the cooling is conducted at a rate less than 15° C./s between a temperature on leaving a unit where the wiping occurs and a start of solidification of the coating, and then at a rate greater than or equal to 15° C./s between a start and an end of solidification of the coating.

    ZnAlMg-Coated Metal Sheet with Improved Flexibility and Corresponding Manufacturing Process
    10.
    发明申请
    ZnAlMg-Coated Metal Sheet with Improved Flexibility and Corresponding Manufacturing Process 审中-公开
    ZnAlMg涂层金属板具有改善的灵活性和相应的制造工艺

    公开(公告)号:US20160251761A1

    公开(公告)日:2016-09-01

    申请号:US15028249

    申请日:2014-10-09

    Applicant: ArcelorMittal

    CPC classification number: C23C22/78 C23C2/06 C23C2/26 C23C2/36 C23C22/34 C23C22/82

    Abstract: The present invention provides a process for the manufacture of a pre-painted sheet. The process includes supplying a steel substrate, depositing a metallic coating on at least one face by hot-dipping of the substrate in a bath including 4.4% to 5.6% by weight aluminum and 0.3% to 0.56% by weight magnesium. The rest of the bath includes exclusively zinc, unavoidable impurities resulting from the process and optionally one or more additional elements including Si, Ti, Ca, Mn, La, Ce and Bi. The content by weight of each additional element in the metallic coating is less than 0.3% and the presence of nickel is excluded. The process further includes solidifying the metallic coating, surface preparation of the metallic coating and painting of the metallic coating. The present invention further provides a pre-painted sheet.

    Abstract translation: 本发明提供一种制造预涂片材的方法。 该方法包括供应钢基材,通过在包含4.4%至5.6%(重量)的铝和0.3%至0.56%(重量)的镁的浴中热浸基材而在至少一个表面上沉积金属涂层。 浴的其余部分仅包含锌,由该方法产生的不可避免的杂质和任选的一种或多种另外的元素,包括Si,Ti,Ca,Mn,La,Ce和Bi。 金属涂层中每种附加元素的重量含量小于0.3%,并且不包括镍的存在。 该方法还包括固化金属涂层,金属涂层的表面制备和金属涂层的涂漆。 本发明还提供一种预涂片材。

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