RARE-EARTH PERMANENT MAGNET
    2.
    发明申请
    RARE-EARTH PERMANENT MAGNET 审中-公开
    稀土永磁体

    公开(公告)号:US20100194508A1

    公开(公告)日:2010-08-05

    申请号:US12695585

    申请日:2010-01-28

    IPC分类号: H01F7/02

    摘要: There is provided a rare-earth permanent magnet optimized to an IPM type motor for a car, capable of improving corrosion resistance, abrasion resistance, and impact resistance. The rare-earth permanent magnet 16 is configured by forming an electroplated Ni coating film 21, of which thickness is 15 μm or more and 30 μm or less and of which shape is a columnar crystal structure, on a surface of a R—Fe—B system permanent magnet (R is a rare-earth element) 22. The electroplated Ni coating film 21 has a high hardness region, where the Vickers hardness is 300 or more and 600 or less, and a low hardness region, where the Vickers hardness is 150 or more and 300 or less. The rare-earth permanent magnet 16 is used in a state where the rare-earth permanent magnet 16 is inserted into a slot of a yoke in a rotor of an IPM type motor for a car.

    摘要翻译: 提供了一种针对汽车的IPM型电动机优化的稀土永磁体,能够提高耐腐蚀性,耐磨性和耐冲击性。 稀土类永磁体16通过在R-Fe系永久磁铁16的表面上形成厚度为15μm以上且30μm以下,形状为柱状晶体结构的电镀Ni被膜21, B系永磁体(R为稀土元素)22.电镀Ni涂膜21具有高维度区域,维氏硬度为300以上且600以下,低硬度区域为维氏硬度 为150以上且300以下。 在稀土永磁体16插入到用于汽车的IPM型电动机的转子中的轭的槽中的状态下使用稀土永磁体16。

    Production of oxyalkylated .alpha.-hydroxy acetylenic compounds
    3.
    发明授权
    Production of oxyalkylated .alpha.-hydroxy acetylenic compounds 失效
    制备烷氧基化的{60-羟基炔属化合物

    公开(公告)号:US3931336A

    公开(公告)日:1976-01-06

    申请号:US389479

    申请日:1973-08-20

    申请人: Kurt Schneider

    发明人: Kurt Schneider

    IPC分类号: C25D3/16 C07C41/02 C07C41/10

    CPC分类号: C25D3/16

    摘要: Production of oxyalkylated acetylenic alcohols by reaction of acetylenic alcohols with alkylene oxides in the presence of phosphines, polar aprotic solvents or thioethers.

    摘要翻译: 在膦,极性非质子溶剂或硫醚的存在下,通过炔属醇与环氧烷反应制备烷氧基化炔属醇。

    Bright nickel electroplating bath containing sulfo-oxygen control agent nitrogen-containing brightener and minor concentration of terminal acetylenic alcohol or derivative
    5.
    发明授权
    Bright nickel electroplating bath containing sulfo-oxygen control agent nitrogen-containing brightener and minor concentration of terminal acetylenic alcohol or derivative 失效
    明亮的镍电镀浴含有硫酸氧化物控制剂含硝酸的增稠剂和末端乙酰醇或衍生物的微量浓度

    公开(公告)号:US3630857A

    公开(公告)日:1971-12-28

    申请号:US3630857D

    申请日:1969-12-29

    申请人: KEWANEE OIL CO

    IPC分类号: C25D3/16 C23B5/08 C23B5/46

    CPC分类号: C25D3/16

    摘要: THIS INVENTION COMPRISES AN IMPROVEMENT IN A BRIGHT NICKEL PLATING BATH IN WHICH PREVIOUSLY TROUBLESOME PLATING AT CURRENT DESITIES OF LESS THAN 8 A.S.F. OR EVEN UNDER 15 A.S.F. IS AVOIDED BY USING A COMBINATION OF ADDITIVES COMPRISING (A) A SULFO-OXYGEN CONTROL AGENT, (B) A NITROGEN-CONTAINING BRIGHTENER, NAMELY AN AROMATIC MONOAMINE OR AROMATIC POLYAMINE, AN UNSUBSTITUTED POLYETHYLENEPOLYAMINE OR A NITRILE, AND (C) FROM 0.0005 TO 0.1 GRAM PER LITER OF AN ACETYLENIC ALCOHOL HAVING THE FORMULA HC$C-R IN WHICH R IS A HYDROXY-SUBSTITUTED HYDROCARBON RADICAL HAVING 1-8 CARBON ATOMS THEREIN SELECTED FROM THE CLASS CONSISTING OF HYDROXY-SUBSTITUTED ALKYL, ALKENYL AND CYCLOALKYL GROUPS AND THE ALKYLENE OXIDE ADDUCTS THEREOF CONTAINING NO MORE THAN 4 ALKYLENE OXIDE GROUPS AND THE ALKYLENE GROUP THEREIN HAVING 1-4 CARBON ATOMS.