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    Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for production the same
    3.
    发明授权
    Grain oriented electrical steel sheet having high magnetic flux density and ultra low iron loss and process for production the same 失效
    具有高磁通密度和超低铁损的晶粒取向电工钢板及其制造方法相同

    公开(公告)号：US5507883A

    公开(公告)日：1996-04-16

    申请号：US257765

    申请日：1994-06-09

    申请人： Osamu Tanaka ,  Hiroaki Masui ,  Hotaka Honma ,  Katsuro Kuroki ,  Tsutomu Haratani ,  Yoichi Mishima ,  Maremizu Ishibashi ,  Yoshio Nakamura

    发明人： Osamu Tanaka ,  Hiroaki Masui ,  Hotaka Honma ,  Katsuro Kuroki ,  Tsutomu Haratani ,  Yoichi Mishima ,  Maremizu Ishibashi ,  Yoshio Nakamura

    IPC分类号： C21D8/12 ,  H01F1/147 ,  H01F1/04

    CPC分类号： C21D8/1283 ,  H01F1/14783 ,  C21D8/1255 ,  C21D8/1272

    摘要： A grain oriented electrical steel sheet having no significant glass film and having a high magnetic flux density and an excellent iron loss property, comprising, in terms of by weight, 2.5 to 4.5% of Si, the steel sheet having, as oxides on its surface, a glass film comprising 0.6 g/m.sup.2 or less in total of forsterite and spinel composed of MgO, SiO.sub.2 and Al.sub.2 O.sub.3 and an insulating coating having a thickness of 6 .mu.m or less, the face tension imparted on the surface of the steel sheet by the coating being in the range of from 0.5 to 2.0 kg/mm.sup.2. In the final box annealing of the steel sheet after primary recrystallization annealing, use is made of an annealing separator comprising 100 parts by weight of MgO and, added thereto, 2 to 30 parts by weight of at least one member selected from the group consisting of chlorides, carbonates, nitrates, sulfates and sulfides of Li, K, Bi, Na, Ba, Ca, Mg, Zn, Fe, Zr, Sr, Sn, Al, etc., and the heating in the final box annealing is effected in an atmosphere comprising N.sub.2 and H.sub.2 with the nitrogen content being 30% or more at a heating rate of 20.degree. C./hr or less, and a seam or spotty flaw is imparted at an angle of 45.degree. to 90.degree. to the rolling direction of the steel sheet.

    摘要翻译： 一种不具有显着玻璃膜并且具有高磁通密度和优异的铁损特性的晶粒取向电工钢板，其中，按重量计包含2.5至4.5％的Si，该钢板在其表面上具有氧化物 ，由MgO，SiO 2和Al 2 O 3组成的镁橄榄石和尖晶石的总计为0.6g / m 2以下的玻璃膜和厚度为6μm以下的绝缘涂层，通过以下方式赋予钢板表面的表面张力 涂层在0.5至2.0kg / mm 2的范围内。 在一次再结晶退火后的钢板的最终退火中，使用包含100重量份MgO的退火分离剂，向其中加入2〜30重量份的选自以下的至少一种： Li，K，Bi，Na，Ba，Ca，Mg，Zn，Fe，Zr，Sr，Sn，Al等的氯化物，碳酸盐，硝酸盐，硫酸盐和硫化物，最终箱退火中的加热是 包含N 2和H 2的气氛，氮含量在20℃/小时以下的加热速率为30％以上，接缝或斑点缺陷与轧制方向成45度〜90度的角度 的钢板。

    Method of producing grain-oriented electrical steel sheet very excellent in magnetic properties
    4.
    发明授权
    Method of producing grain-oriented electrical steel sheet very excellent in magnetic properties 有权
    制造磁特性优异的晶粒取向电工钢板的方法

    公开(公告)号：US07833360B2

    公开(公告)日：2010-11-16

    申请号：US12224709

    申请日：2007-01-12

    申请人： Tomoji Kumano ,  Shyuichi Yamazaki ,  Osamu Tanaka

    发明人： Tomoji Kumano ,  Shyuichi Yamazaki ,  Osamu Tanaka

    IPC分类号： H01F1/147

    CPC分类号： C23C8/02 ,  B21B3/02 ,  C21D8/12 ,  C21D8/1261 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/20 ,  C23C8/26 ,  C23C8/80 ,  H01F1/14775

    摘要： The invention provides a method of producing a grain-oriented electrical steel sheet of the complete solid solution nitrided type that is good in glass film formation and excellent in magnetic properties, which method comprises: C: 0.025 to 0.09%, hot-rolling the steel slab containing Si: 2.5 to 4.0% and acid-soluble Al into a hot-rolled steel strip; controlling the rate at which N contained in the hot-rolled steel strip is precipitated as AlN to a precipitation rate of 20% or less; conducting hot-rolled strip annealing and cold rolling conducting decarburization-annealing combined with primary recrystallization by during the former part of the process in an atmosphere whose PH2O/PH2 is 0.30 to 0.70 and then during the latter part thereof in an atmosphere whose PH2O/PH2 is 0.20 or less, thereby making the circular equivalent average grain diameter of the primary recrystallization grains 7 μm to less than 18 μm; nitriding the strip as it travels in a mixed gas of hydrogen, nitrogen and ammonia; controlling the steel strip oxygen concentration before secondary recrystallization annealing calculated based on strip thickness of 0.30 mm (oxygen content: So) to 450 ppm to 700 ppm inclusive; applying a coat of annealing separator; and then conducting secondary recrystallization annealing in an atmosphere that, while the temperature at the hottest coil outer periphery point is between room temperature and 950° C., is controlled to a nitrogen atmosphere containing oxygen: 25 to 75% wherein the balance is hydrogen and PH2O/PH2 is 0.01 to 0.15.

    摘要翻译： 本发明提供了一种制备完全固溶氮化型的方向性电磁钢板的方法，该方法具有良好的玻璃成膜性和优异的磁性能，该方法包括：C：0.025〜0.09％，热轧钢 含有Si：2.5〜4.0％的板坯和酸溶性Al成为热轧带钢; 控制热轧钢带中所含的N作为AlN析出的析出速度为20％以下; 在前一部分工艺中，在PH2O / PH2为0.30〜0.70的气氛中进行热轧带退火和冷轧进行脱碳退火，再结合一次再结晶，然后在其后半部分，在PH2O / PH2 为0.20以下，从而使一次再结晶晶粒的圆周当量平均粒径为7μm〜小于18μm; 当条带在氢，氮和氨的混合气体中流动时氮化; 基于条带厚度为0.30mm（氧含量：So）计算出的二次再结晶退火前的钢带氧浓度为450ppm〜700ppm， 涂一层退火分离器; 然后在最热线圈外周点的温度在室温〜950℃之间的气氛中进行二次再结晶退火，控制在含有氧的氮气氛中：25〜75％，其中余量为氢， PH2O / PH2为0.01〜0.15。

    Method of Producing Grain-Oriented Electrical Steel Sheet Very Excellent in Magnetic Properties
    5.
    发明申请
    Method of Producing Grain-Oriented Electrical Steel Sheet Very Excellent in Magnetic Properties 有权
    生产面向电磁钢板的方法在磁性方面非常优秀

    公开(公告)号：US20090032142A1

    公开(公告)日：2009-02-05

    申请号：US12224709

    申请日：2007-01-12

    申请人： Tomoji Kumano ,  Shyuichi Yamazaki ,  Osamu Tanaka

    发明人： Tomoji Kumano ,  Shyuichi Yamazaki ,  Osamu Tanaka

    IPC分类号： C21D8/00

    CPC分类号： C23C8/02 ,  B21B3/02 ,  C21D8/12 ,  C21D8/1261 ,  C21D8/1272 ,  C21D9/46 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/20 ,  C23C8/26 ,  C23C8/80 ,  H01F1/14775

    摘要： The invention provides a method of producing a grain-oriented electrical steel sheet of the complete solid solution nitrided type that is good in glass film formation and excellent in magnetic properties, which method comprises: C: 0.025 to 0.09%, hot-rolling the steel slab containing Si: 2.5 to 4.0% and acid-soluble Al into a hot-rolled steel strip; controlling the rate at which N contained in the hot-rolled steel strip is precipitated as AlN to a precipitation rate of 20% or less; conducting hot-rolled strip annealing and cold rolling conducting decarburization-annealing combined with primary recrystallization by during the former part of the process in an atmosphere whose PH2O/PH2 is 0.30 to 0.70 and then during the latter part thereof in an atmosphere whose PH2O/PH2 is 0.20 or less, thereby making the circular equivalent average grain diameter of the primary recrystallization grains 7 μm to less than 18 μm; nitriding the strip as it travels in a mixed gas of hydrogen, nitrogen and ammonia; controlling the steel strip oxygen concentration before secondary recrystallization annealing calculated based on strip thickness of 0.30 mm (oxygen content: So) to 450 ppm to 700 ppm inclusive; applying a coat of annealing separator; and then conducting secondary recrystallization annealing in an atmosphere that, while the temperature at the hottest coil outer periphery point is between room temperature and 950° C., is controlled to a nitrogen atmosphere containing oxygen: 25 to 75% wherein the balance is hydrogen and PH2O/PH2 is 0.01 to 0.15.

    摘要翻译： 本发明提供了一种制备完全固溶氮化型的方向性电磁钢板的方法，该方法具有良好的玻璃成膜性和优异的磁性能，该方法包括：C：0.025〜0.09％，热轧钢 含有Si：2.5〜4.0％的板坯和酸溶性Al成为热轧带钢; 控制热轧钢带中所含的N作为AlN析出的析出速度为20％以下; 在前一部分工艺中，在PH2O / PH2为0.30〜0.70的气氛中进行热轧带退火和冷轧进行脱碳退火，再结合一次再结晶，然后在其后半部分，在PH2O / PH2 为0.20以下，从而使一次再结晶晶粒的圆形当量平均粒径7μm至小于18μm; 当条带在氢，氮和氨的混合气体中流动时氮化; 基于条带厚度为0.30mm（氧含量：So）计算出的二次再结晶退火前的钢带氧浓度为450ppm〜700ppm， 涂一层退火分离器; 然后在最热线圈外周点的温度在室温〜950℃之间的气氛中进行二次再结晶退火，控制在含有氧的氮气氛中：25〜75％，其中余量为氢， PH2O / PH2为0.01〜0.15。

    NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRIC DEVICE
    10.
    发明申请
    NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRIC DEVICE 审中-公开
    用于电气设备的负极电极活性材料

    公开(公告)号：US20140099229A1

    公开(公告)日：2014-04-10

    申请号：US14119379

    申请日：2012-03-09

    申请人： Manabu Watanabe ,  Masao Yoshida ,  Osamu Tanaka

    发明人： Manabu Watanabe ,  Masao Yoshida ,  Osamu Tanaka

    IPC分类号： H01M4/38

    CPC分类号： H01M4/386 ,  C22C13/00 ,  C22C27/025 ,  C22C28/00 ,  C22C30/00 ,  C22C30/04 ,  H01G11/06 ,  H01G11/50 ,  H01M4/0426 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/387 ,  H01M10/0525 ,  H01M2220/20 ,  Y02E60/122 ,  Y02E60/13 ,  Y02T10/7022

    摘要： A negative electrode active material for an electric device includes an alloy containing Si in a range of greater than or equal to 27% by mass and less than 100% by mass, Sn in a range of greater than 0% by mass and less than or equal to 73% by mass, V in a range of greater than 0% by mass and less than or equal to 73% by mass, and inevitable impurities as a residue. The negative electrode active material can be obtained with, for example, a multi DC magnetron sputtering apparatus by use of Si, Sn, and V as targets. An electric device using the negative electrode active material can achieve long cycle life and ensure a high capacity and cycle durability.

    摘要翻译： 用于电子器件的负极活性物质包括含量在大于或等于27质量％且小于100质量％范围内的Si的合金，Sn在大于0质量％的范围内，小于或等于 等于73质量％，V在大于0质量％且小于等于73质量％的范围内，以及不可避免的杂质作为残留物。 负极活性物质可以通过例如使用Si，Sn和V作为靶的多直流磁控溅射装置来获得。 使用负极活性物质的电子装置可以实现长的循环寿命，并确保高容量和循环耐久性。