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    PROCÉDÉ DE FABRICATION D'UNE BANDE MÉTALLIQUE REVÊTUE PRÉSENTANT UN ASPECT AMÉLIORÉ
    21.
    发明公开
    PROCÉDÉ DE FABRICATION D'UNE BANDE MÉTALLIQUE REVÊTUE PRÉSENTANT UN ASPECT AMÉLIORÉ 有权
    HERSTELLUNGSVERFAHREN EINES BESCHICHTETEN METALLBLECH MIT VERBESSERTEM AUSSEHEN

    公开(公告)号：EP2430207A1

    公开(公告)日：2012-03-21

    申请号：EP10723639.0

    申请日：2010-05-07

    申请人： Arcelormittal Investigación y Desarrollo SL

    发明人： DIEZ, Luc ,  MATAIGNE, Jean-Michel ,  ORSAL, Bertrand ,  SAINT RAYMOND, Hubert

    IPC分类号： C23C2/20

    CPC分类号： C23C2/06 ,  B32B15/013 ,  C22C18/00 ,  C22C18/04 ,  C23C2/20 ,  C23C2/26 ,  C23C2/40 ,  Y10T428/12389

    摘要： The invention relates to a method for manufacturing a metal strip with a metal coating for protecting against corrosion, including the steps of: passing the metal strip through a bath of molten metal containing 0.2 to 8 wt % of aluminium and magnesium in the following proportions: 0.1 to 8 wt % of magnesium, for an aluminium content greater than or equal to 0.2 wt % and lower than 4 wt %; or a magnesium content higher than 5 wt % and less than or equal to 8 wt % for an aluminium content greater than or equal to 4 wt % and less than or equal to 8 wt %, and including up to 0.3 wt % of alloy additions, the remainder being zinc and unavoidable impurities; then spin-drying the coated metal strip by means of nozzles spraying a gas on either side of the strip, said gas having a lower oxidising power than that of an atmosphere consisting of 4 vol % of oxygen and 96 vol % of nitrogen; and then passing the strip though a containment area delimited as follows: at the bottom, by the spin-drying line and the upper outer surfaces of said spin drying nozzles; at the top by the upper portion of two containment walls placed on either side of the strip, immediately above said nozzles, with a height of at least 10 cm relative to the spin-drying line; and at the sides, by the side portions of said containment walls, the atmosphere in said containment area having an oxidising power lower than that of an atmosphere containing 4 vol % of oxygen and 96 vol % of nitrogen and higher than that of an atmosphere containing 0.15 vol % of oxygen and 99.85 vol % of nitrogen. The invention also relates to a metal strip that can be produced using said method and to a metal part produced by deforming said strip.

    摘要翻译： 提供热浸涂层，非皮肤通过的冷轧金属条。 通过使金属带通过熔融金属浴来获得金属带，用喷嘴将喷涂的金属条擦拭，并且使条带穿过限制区。 金属带的金属涂层包括小于或等于0.70μm的波纹Wa0.8，以下列比例为0.2-8重量％的铝和镁：0.1至8重量％的铝，铝含量相等 或大于0.2％但小于2重量％或含量大于5％但小于或等于8重量％的镁的含量等于或大于2％但小于或等于8的铝 重量％和最多0.3％重量的附加元素，余量为锌和不可避免的杂质。 还提供金属部件。

    FABRICATION PROCESS OF COATED STAMPED PARTS AND PARTS PREPARED FROM THE SAME
    22.
    发明公开
    FABRICATION PROCESS OF COATED STAMPED PARTS AND PARTS PREPARED FROM THE SAME 审中-公开
    方法生产涂敷STANZTEILE及其零件由其制得的

    公开(公告)号：EP2391508A1

    公开(公告)日：2011-12-07

    申请号：EP10702612.2

    申请日：2010-02-01

    申请人： Arcelormittal Investigación y Desarrollo SL ,  AUDI AG ,  Volkswagen AG

    发明人： THIRION, Isabelle ,  VIETORIS, Thomas ,  GRIGORIEVA, Raisa ,  DRILLET, Pascal ,  SCHALLER, Ludwig ,  BADER, Karl, Michael ,  PAAR, Uwe ,  ALSMANN, Michael

    IPC分类号： B32B15/01 ,  C21D1/70

    摘要： A manufacturing process of a hot stamped coated part comprising the following successive steps, in this order : providing a hot rolled or cold rolled steel sheet comprising a steel substrate and an aluminium-silicon alloy precoating, the precoating containing more than 50% of free aluminium and having a thickness comprised between 15 and 50 micrometers, then cutting the steel sheet to obtain a precoated steel blank, then heating the blank under non protective atmosphere up to a temperature T
    i comprised between T
    e - 10°C and T
    e , Te being the eutectic or solidus temperature of the precoating, then heating the blank from the temperature T
    i up to a temperature T
    m comprised between 840 and 950°C under non protective atmosphere with a heating rate V comprised between 30°C/s and 90°C/s, V being the heating rate between the temperature T
    i and the temperature T
    m , in order to obtain a coated heated blank, then soaking the coated heated blank at said temperature T
    m for a time t
    m comprised between 20s and 90s, then hot stamping the blank in order to obtain a hot stamped coated part, then cooling said stamped part at a cooling rate in order to form a microstructure in the steel substrate comprising at least one constituent chosen among martensite or bainite.

    CONTINUOUS CASTING EQUIPMENT
    25.
    发明公开
    CONTINUOUS CASTING EQUIPMENT 审中-公开
    STRANGGIESSVORRICHTUNG

    公开(公告)号：EP2830793A1

    公开(公告)日：2015-02-04

    申请号：EP12719050.2

    申请日：2012-03-28

    申请人： Arcelormittal Investigación y Desarrollo SL

    发明人： BRANDT, Mathieu ,  FISCHBACH, Jean-Paul ,  NAVEAU, Paul

    IPC分类号： B22D11/112 ,  B22D41/60

    CPC分类号： B22D11/103 ,  B22D11/112 ,  B22D41/50 ,  B22D41/60

    摘要： Continuous casting equipment for a flow of liquid metal from a tundish into a mold is provided. The equipment includes a vertical duct disposed upstream of the mold with respect to the direction of travel of the liquid metal. The duct includes from upstream to downstream a refractory ring, a copper tube with an internal diameter D and a submerged entry nozzle. A dome is disposed inside the refractory ring and includes a sloped upper part, the upper part is defined so as to deflect the liquid metal coming from the tundish towards the inner walls of the vertical duct. The diameter D of the copper tube ranges between a minimum diameter equal to Q/3.75 and a maximum diameter equal to Q/1.25, where Q is the nominal liquid metal flow rate of the equipment and is between 200 and 800 kg/min and D is the diameter expressed in mm.