METHOD FOR PRODUCING A COATED METAL BAND HAVING AN IMPROVED APPEARANCE

    公开(公告)号:US20190271066A1

    公开(公告)日:2019-09-05

    申请号:US16409273

    申请日:2019-05-10

    申请人: ARCELORMITTAL

    摘要: A hot-dip-coated, non-skin-passed, cold-rolled metal strip is provided. The metal strip is obtained by passing the metal strip through a bath of molten metal, wiping the coated metal strip with nozzles that spray a gas on each side of the strip and making the strip pass through a confinement zone. The metal coating of the metal strip includes a waviness Wa0.8 of less than or equal to 0.70 μm, 0.2 to 8% by weight of aluminum and magnesium in the following proportions: 0.1 to 8% by weight of magnesium for an aluminum content equal to or greater than 0.2% but less than 2% by weight or a content greater than 5% but less than or equal to 8% by weight of magnesium for an aluminum content equal to or greater than 2% but less than or equal to 8% by weight, and up to 0.3% by weight of additional elements, the balance being zinc and inevitable impurities. Metal parts are also provided.

    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

    申请人: ArcelorMittal

    IPC分类号: C23C2/20 C23C2/06 C23C2/16

    摘要: 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.

    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

    申请人: ArcelorMittal

    IPC分类号: C23C2/20 C23C2/06 C23C2/16

    摘要: 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.

    Process for Manufacturing a Coated Metal Strip of Improved Appearance

    公开(公告)号:US20230183847A1

    公开(公告)日:2023-06-15

    申请号:US18105963

    申请日:2023-02-06

    申请人: ArcelorMittal

    IPC分类号: C23C2/20 C23C2/06 C23C2/16

    CPC分类号: C23C2/20 C23C2/06 C23C2/16

    摘要: 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.

    Process for manufacturing a coated metal strip of improved appearance

    公开(公告)号:US11597990B2

    公开(公告)日:2023-03-07

    申请号:US17323235

    申请日:2021-05-18

    申请人: ArcelorMittal

    IPC分类号: C23C2/20 C23C2/06 C23C2/16

    摘要: 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.

    Process for Manufacturing a Coated Metal Strip of Improved Appearance

    公开(公告)号:US20210269907A1

    公开(公告)日:2021-09-02

    申请号:US17323235

    申请日:2021-05-18

    申请人: ArcelorMittal

    IPC分类号: C23C2/20 C23C2/06 C23C2/16

    摘要: 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.

    Process for Manufacturing a Coated Metal Strip of Improved Appearance

    公开(公告)号:US20200248295A1

    公开(公告)日:2020-08-06

    申请号:US16856232

    申请日:2020-04-23

    申请人: ArcelorMittal

    IPC分类号: C23C2/20 C23C2/16 C23C2/06

    摘要: 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.

    Process for manufacturing a coated metal strip of improved appearance

    公开(公告)号:US10724130B2

    公开(公告)日:2020-07-28

    申请号:US16004131

    申请日:2018-06-08

    申请人: ArcelorMittal

    IPC分类号: C23C2/20 C23C2/06 C23C2/16

    摘要: 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.