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21 条记录 (耗时 0.043 秒)

    Low iron loss and low noise grain-oriented electrical steel sheet and a method for producing the same
    5.
    发明授权
    Low iron loss and low noise grain-oriented electrical steel sheet and a method for producing the same 有权
    低铁损和低噪音晶粒取向电工钢板及其制造方法

    公开(公告)号：US06918966B2

    公开(公告)日：2005-07-19

    申请号：US10288784

    申请日：2002-11-06

    申请人： Masahiro Fujikura ,  Satoshi Arai ,  Masato Mizokami ,  Hisashi Mogi ,  Takeshi Kubota

    发明人： Masahiro Fujikura ,  Satoshi Arai ,  Masato Mizokami ,  Hisashi Mogi ,  Takeshi Kubota

    IPC分类号： C21D8/12 ,  H01F1/147 ,  H01F1/16

    CPC分类号： C21D8/1294 ,  B23K2103/04 ,  C21D8/1288 ,  H01F1/14775

    摘要： The object of the present invention is to provide a low iron loss and low noise grain-oriented electrical steel sheet for securing both low core loss and low noise of a transformer at the same time.The present invention relates to a grain-oriented electrical steel sheet containing Si: 1.0-4.0 wt % produced by controlling, with regard to εO, which is defined as a 0-p value when a grain-oriented electrical steel sheet is magnetized up to a saturated magnetic flux density, and ε17, which is defined as the value obtained by subtracting a 0-p value at the magnetization magnetic flux density of 1.7 T from a 0-p value at a saturated magnetic flux density, εOC and ε17L, which are absolute values deviated by forming a tension film and a forsterite film, and εOL and ε17L, which are absolute values deviated by irradiating laser after the film formation, in adequate ranges respectively, and further controlling λ17, which is a 0-p value at the magnetization magnetic flux density of 1.7 T, in the most appropriate range, when measuring a 0-p value of magnetostriction vibration in the rolling direction.

    摘要翻译： 本发明的目的是提供一种用于同时确保变压器的低铁损和低噪声的低铁损和低噪音晶粒取向电工钢板。 本发明涉及一种含有Si：1.0-4.0重量％的晶粒取向电工钢板，它是通过控制ε- 定向为电磁钢板达到饱和磁通密度，ε17被定义为通过从磁通密度减去1.7T的磁化磁通密度的0-p值而得到的值 饱和磁通密度为ε-0的p值为ε-1，其为通过形成张力膜和镁橄榄石膜而偏离的绝对值，ε

    Magnetic shield structure having openings and a magnetic material frame therefor
    6.
    发明授权
    Magnetic shield structure having openings and a magnetic material frame therefor 失效
    具有开口的磁屏蔽结构和用于其的磁性材料框架

    公开(公告)号：US07964803B2

    公开(公告)日：2011-06-21

    申请号：US10549069

    申请日：2004-03-16

    申请人： Takeshi Saito ,  Masanori Karikomi ,  Masanori Niwa ,  Hiroshi Ishikawa ,  Satoru Miura ,  Masahiro Fujikura ,  Akira Sakaida ,  Yoneo Yamada ,  Kentaro Chikuma

    发明人： Takeshi Saito ,  Masanori Karikomi ,  Masanori Niwa ,  Hiroshi Ishikawa ,  Satoru Miura ,  Masahiro Fujikura ,  Akira Sakaida ,  Yoneo Yamada ,  Kentaro Chikuma

    IPC分类号： H05K9/00

    CPC分类号： G01R33/0047 ,  G01R33/421 ,  H01F27/365

    摘要： A magnetic shield structure having openings, the structure comprising a plurality of similar magnetic blind bodies 2, each blind body 2 having an imaginary blind core plane F and a plurality of magnetic material slats 1 being spaced from each other by a distance d required for magnetic shielding, each slat 1 intersecting the blind core plane F at a longitudinal central axis C thereof, the longitudinal central axes of the slats are oriented substantially in parallel to each other on the blind core plane F. The blind bodies 2a, 2b are coupled in a row by serially coupling each slat 1 in each blind body 2a to a corresponding slat 1 of adjacent blind body 2b through overlapping or abutting of slat terminal portions, whereby the blind core planes Fa, Fb of the blind bodies 2a, 2b are so coupled as to define a successive magnetic shield plane, and spaces d between adjacent slats 1 in each blind body 2a, 2b form openings in the magnetic shield structure. Preferably, three or more magnetic blind bodies 2 are coupled in a row so as to form a closed magnetic path. The blind bodies 2a, 2b may be stacked side by side in such a manner that the blind core plane Fa, Fb are parallel to each other and orientation of the slat central axes in each blind body 2a, 2b being selected so as to optimize attenuation of magnetic field across the magnetic shield structure.

    摘要翻译： 具有开口的磁屏蔽结构，该结构包括多个类似的磁性盲体2，每个盲体2具有假想的盲核平面F和多个磁性材料板条1彼此间隔开磁带所需的距离d 每个板条1在其纵向中心轴线C处与盲芯平面F相交，板条的纵向中心轴线基本上在盲芯平面F上彼此平行地定向。盲体2a，2b联接在 通过每个盲体2a中的每个板条1通过板条端部的重叠或邻接将每个盲体2a中的每个板条1串联连接到相邻的盲体2b的相应板条1，由此盲体2a，2b的盲芯平面Fa，Fb如此耦合 为了限定连续的磁屏蔽平面，并且每个盲体2a，2b中的相邻板条1之间的间隔d在磁屏蔽结构中形成开口。 优选地，三个或更多个磁性盲体2被一行地联接以形成闭合的磁路。 盲体2a，2b可以以盲核心平面Fa，Fb彼此平行的方式并排堆叠，并且选择每个盲体2a，2b中的板条中心轴的取向以优化衰减 的磁场横跨磁屏蔽结构。

    Rare-earth antisotropic powders and magnets and their manufacturing processes
    7.
    发明授权
    Rare-earth antisotropic powders and magnets and their manufacturing processes 失效
    稀土防腐粉末和磁铁及其制造工艺

    公开(公告)号：US5009706A

    公开(公告)日：1991-04-23

    申请号：US554109

    申请日：1990-07-18

    申请人： Hiroaki Sakamoto ,  Masahiro Fujikura ,  Toshio Mukai

    发明人： Hiroaki Sakamoto ,  Masahiro Fujikura ,  Toshio Mukai

    IPC分类号： H01F1/06 ,  B22F1/00 ,  H01F1/057

    CPC分类号： H01F1/0571 ,  H01F1/0576

    摘要： Rare-earth alloy anisotropic powders consist of, in atomic percent, over 12 percent and not more than 20 percent of R (R is at least one on neodymium and praseodymium or at least one of them and or more rare-earth elements), not less than 4 percent and not more than 10 percent of boron, not less than 0.05 percent and not more than 5 percent of copper and the rest that consists of iron and unavoidable impurities. Up to 20 percent of the iron contained is replaceable with cobalt. The alloy powders are made up of flat crystal grains having mean thickness h (the shortest measure), d not smaller than 0.01 .mu.m and not larger than 0.5 .mu.m and ratio d/h not smaller than 2, where d is the means measure of the grains taken at right angles to the widthwide direction thereof, and the alloy powders are magnetically anisotropic. Each rare-earth alloy anisotropic powder is prepared by melting an R-Fe-B-Cu alloy, putting thin ribbons prepared by quenching the melt or a powder prepared by grinding the thin ribbons in a metal container, hermetically sealing the metal container after replacing its inner atmosphere with a vacuum or an inert gas atmosphere, and rolling the thin ribbons or powder, together with the metal container, at a temperature not lower than 500.degree. C. and not higher than 900.degree. C. Rare-earth alloy anisotropic magnets are made by kneading and forming the rare-earth alloy anisotropic powders with not less than 10 percent and not more than 50 percent by volume of resin or by hot-compressing the rare-earth alloy anisotropic powders.

    摘要翻译： 稀土合金各向异性粉末以原子百分比超过12％且不超过20％的R（R是钕和镨上的至少一种或至少其中一种和/或更多的稀土元素），而不是 小于4％且不超过10％的硼，不少于0.05％且不超过5％的铜，其余由铁和不可避免的杂质组成。 含铁量高达20％可替代钴。 合金粉末由具有平均厚度h（最短测量）的平均晶粒构成，d不小于0.01μm且不大于0.5μm，d / h不小于2，其中d是平均值 的晶粒与其宽度方向成直角，并且合金粉末是磁各向异性的。 通过熔化R-Fe-B-Cu合金制备每种稀土合金各向异性粉末，将通过将熔体淬火制成的薄带或通过在金属容器中研磨薄带而制备的粉末，在更换之后气密地密封金属容器 其内部气氛具有真空或惰性气体气氛，并在不低于500℃且不高于900℃的温度下将薄带或粉末与金属容器一起滚动。稀土合金各向异性磁体 通过捏合和形成不少于10％且不大于50体积％的树脂的稀土合金各向异性粉末或通过热压缩稀土合金各向异性粉末来制备。

    High-strength non-oriented electrical steel sheet
    8.
    发明授权
    High-strength non-oriented electrical steel sheet 有权
    高强度无取向电工钢板

    公开(公告)号：US09362032B2

    公开(公告)日：2016-06-07

    申请号：US14111245

    申请日：2012-04-11

    申请人： Yoshihiro Arita ,  Masahiro Fujikura ,  Hidekuni Murakami

    发明人： Yoshihiro Arita ,  Masahiro Fujikura ,  Hidekuni Murakami

    IPC分类号： C22C38/02 ,  C22C38/04 ,  H01F1/01 ,  C22C38/06 ,  C22C38/16 ,  H01F1/16 ,  C22C38/00 ,  C21D8/12

    CPC分类号： H01F1/01 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/16 ,  H01F1/16

    摘要： A high-strength non-oriented electrical steel sheet contains: in mass %, C: 0.010% or less; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 0.50%; Al: not less than 0.2% nor more than 3.0%; N: 0.005% or less; S: not less than 0.005% nor more than 0.030%; and Cu: not less than 0.5% nor more than 3.0%, a balance being composed of Fe and inevitable impurities. An expression (1) is established where a Mn content is represented as [Mn] and a S content is represented as [S], and not less than 1.0×104 pieces nor more than 1.0×106 pieces of sulfide having a circle-equivalent diameter of not less than 0.1 μm nor more than 1.0 μm are contained per 1 mm2 10≦[Mn]/[S]≦50  (1).

    摘要翻译： 高强度无取向电工钢板，以质量％计含有C：0.010％以下， Si：不小于2.0％，不大于4.0％; Mn：不小于0.05％，不大于0.50％; Al：不小于0.2％，不大于3.0％; N：0.005％以下; S：不小于0.005％，不大于0.030％; 和Cu：不小于0.5％，不大于3.0％，余量由Fe和不可避免的杂质组成。 建立表达式（1），其中Mn含量表示为[Mn]，S含量表示为[S]，并且不小于1.0×10 4个或不大于1.0×10 6个具有圆当量的硫化物 每1mm 2 10 [n]; [Mn] / [S]＆nlE; 50（1）中含有不小于0.1μm，不大于1.0μm的直径。