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    PLATED STEEL MATERIAL
    1.
    发明公开
    PLATED STEEL MATERIAL 审中-公开

    公开(公告)号：EP4060075A1

    公开(公告)日：2022-09-21

    申请号：EP20887805.8

    申请日：2020-10-16

    申请人： NIPPON STEEL CORPORATION

    发明人： SAITO, Mamoru ,  GOTO, Yasuto ,  ISHIZUKA, Kiyokazu

    IPC分类号： C23C2/06 ,  C23C2/28 ,  C23C2/02 ,  C23C2/26 ,  C23C28/02 ,  C23C30/00

    摘要： A coated steel material including: a base steel, and a coating layer containing a Zn-Al-Mg alloy layer disposed on a surface of the base steel, wherein the coating layer has a predetermined chemical composition, and, in a backscattered electron image of the Zn-Al-Mg alloy layer that is obtained at a time of observing the surface of the Zn-Al-Mg alloy layer after polishing to 1/2 of the layer thickness, under a scanning electron microscope at a magnification of 100X, Al crystals are present, and the average value of the cumulative circumferential length of the Al crystals is 88 to 195 mm/mm 2 .

    SURFACE-TREATED STEEL SHEET FOR BATTERY CONTAINERS AND METHOD FOR PRODUCING SURFACE-TREATED STEEL SHEET FOR BATTERY CONTAINERS
    2.
    发明公开
    SURFACE-TREATED STEEL SHEET FOR BATTERY CONTAINERS AND METHOD FOR PRODUCING SURFACE-TREATED STEEL SHEET FOR BATTERY CONTAINERS 审中-公开

    公开(公告)号：EP3726601A1

    公开(公告)日：2020-10-21

    申请号：EP19754422.4

    申请日：2019-02-06

    申请人： NIPPON STEEL CORPORATION

    发明人： SAITO, Mamoru ,  TAKAHASHI, Takehiro ,  ISHIZUKA, Kiyokazu

    IPC分类号： H01M2/02 ,  C25D5/12 ,  C25D5/26 ,  C25D5/50 ,  C25D7/00

    摘要： To provide a surface-treated steel sheet for battery containers excellent in workability while maintaining battery characteristics and liquid leakage resistance, and a manufacturing method thereof. A surface-treated steel sheet for battery containers according to the present invention includes a Ni-Co-Fe-based diffusion alloy plating layer on at least one surface of a base steel sheet, in which the diffusion alloy plating layer is consisted of a Ni-Fe alloy layer and a Ni-Co-Fe alloy layer, which are arranged sequentially from the base steel sheet side, the diffusion alloy plating layer has a Ni coating weight within a range of 3.0 g/m 2 or more and less than 8.74 g/m 2 and a Co coating weight within a range of 0.26 g/m 2 or more and 1.6 g/m 2 or less, with a total of the Ni coating weight and the Co coating weight being less than 9.0 g/m 2 , when a surface of the diffusion alloy plating layer is analyzed by an X-ray photoelectron spectroscopy, Co: 19.5 to 60%, Fe: 0.5 to 30%, and Co + Fe: 20 to 70% in atom% are satisfied, and a thickness of the Ni-Fe alloy layer is within a range of 0.3 to 1.3 µm.

    ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
    5.
    发明公开
    ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME 审中-公开

    公开(公告)号：EP3836169A1

    公开(公告)日：2021-06-16

    申请号：EP21152940.9

    申请日：2010-09-02

    申请人： Nippon Steel Corporation

    发明人： KOSUGE, Kenji ,  ARAI, Satashi ,  ISHIZUKA, Kiyokazu

    IPC分类号： H01F1/18 ,  C09D5/08 ,  C09D7/61 ,  C09D7/40 ,  H01F1/147

    摘要： An electrical steel sheet, comprising:
    a base iron; and
    an insulating film formed on a surface of the base iron,
    wherein the insulating film contains:
    a first component: 100 parts by mass, the first component containing:
    a colloidal silica: 100 parts by mass; and
    one kind selected from a group consisting of an acrylic resin, an epoxy resin and a polyester resin which have an average particle size of 0.05 µm to 0.50 µm, or a mixture or copolymer of two or three kinds selected from the group: 40 parts by mass to 400 parts by mass; and

    a second component composed of particles of one or more kinds selected from a group consisting of a polyolefin wax, an epoxy resin and an acrylic resin, the particles having an average particle size of 2.0 µm to 15.0 µm and a melting point of 60°C to 140°C: 5 parts by mass to 45 parts by mass.

    PROCESS FOR PRODUCING ALLOYED HOT-DIP ZINC-COATED STEEL SHEET SATISFACTORY IN PROCESSABILITY, NON-POWDERING PROPERTY, AND SLIDING PROPERTY
    8.
    发明公开
    PROCESS FOR PRODUCING ALLOYED HOT-DIP ZINC-COATED STEEL SHEET SATISFACTORY IN PROCESSABILITY, NON-POWDERING PROPERTY, AND SLIDING PROPERTY 有权
    合金业务部门方法热镀锌钢板令人满意的加工，NICHTPULVERISIERUNGSEIGENSCHAFT和滑翔

    公开(公告)号：EP2009130A1

    公开(公告)日：2008-12-31

    申请号：EP07740935.7

    申请日：2007-03-28

    申请人： Nippon Steel Corporation

    发明人： HAJI, Junji ,  KAWASAKI, Kaoru ,  ISHIZUKA, Kiyokazu ,  YAMADA, Teruaki

    IPC分类号： C23C2/06

    CPC分类号： C21D9/46 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C23C2/02 ,  C23C2/04 ,  C23C2/06 ,  C23C2/26 ,  C23C2/28

    摘要： The present invention provides a method of production of hot dip galvannealed steel sheet with excellent workability compared with the Sendzimir method or non-oxidizing furnace method and further with excellent powdering or slidability, that is, a method of production of hot dip galvannealed steel sheet with excellent workability, powdering, and slidability characterized by processing a slab containing, by mass%, C: 0.01 to 0.12%, Mn: 0.05 to 0.6%, Si: 0.002 to 0.1%, P: 0.05% or less, S: 0.03% or less, sol. Al: 0.005 to 0.1%, and N: 0.01% or less and having a balance of Fe and unavoidable impurities by hot rolling, pickling, cold rolling, then annealing at 650 to 900°C, cooling to 250 to 450°C, holding at said temperature range for 120 seconds or more, then cooling to room temperature, pickling, preplating Ni or Ni-Fe without intermediate temper rolling, heating by 5°C/sec or more down to 430 to 500°C, galvanizing in a galvanization bath, wiping, then heating by a rate of temperature rise of 20°C/sec or more up to 460 to 550°C, not providing any soaking time or holding for soaking for less than 5 seconds, then cooling by 3°C/sec or more, and final temper rolling by a 0.4 to 2% elongation rate.

    摘要翻译： 本发明提供了与森吉米尔法或无氧化炉的方法，还具有优良的粉化或滑动性，相比生产热浸镀锌钢板的加工性优异的方法所做的是，生产热浸的方法镀锌钢板与 优异的加工性，粉化，并且可滑动通过处理板坯含表征，以质量％计，C：0.01〜12：12％以下，Mn：0.05〜0.6％以下，Si：0.002〜0.1％，P：0.05％以下，S：0.03％ 或以下，sol.Al：0.005〜0.1％，以及N：0.01％或以下，并且具有由热轧，酸洗，冷轧，然后在650退火至900℃的余量Fe和不可避免的杂质，冷却250吨 450℃，保持在所述温度范围内进行120秒以上，然后冷却到室温，酸洗，预镀Ni或Ni-铁没有中间调质轧制，加热5℃/秒以上下降到430〜500℃ 通过temperatu的速率镀锌在镀锌浴中，擦拭，然后加热 再以20℃/秒以上的上升到460至550℃，不提供任何浸泡时间或保持浸泡时间少于5秒，然后通过3℃/秒以上的冷却，并最终回火通过滚动 0.4至2％的伸长率。