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    POWDER METALLURGICAL COMPOSITIONS AND METHODS FOR MAKING THE SAME
    42.
    发明申请
    POWDER METALLURGICAL COMPOSITIONS AND METHODS FOR MAKING THE SAME 有权
    粉末冶金组合物及其制备方法

    公开(公告)号：US20070065328A1

    公开(公告)日：2007-03-22

    申请号：US11558732

    申请日：2006-11-10

    申请人： Bruce Lindsley ,  Patrick King ,  Christopher Schade

    发明人： Bruce Lindsley ,  Patrick King ,  Christopher Schade

    IPC分类号： B22F3/12

    CPC分类号： C22C33/0207 ,  B22F1/0003

    摘要： Metallurgical powder compositions of the present invention include an iron based powder combined with a master alloy powder, as a mechanical property enhancing powder. The addition of master alloy powders has been found to enhance the mechanical properties of the final, sintered, compacted parts made from metallurgical powder compositions, especially at low sintering temperatures. Metallurgical powder compositions include at least about 80 weight percent of an iron-based metallurgical powder and from about 0.10 to about 20 weight percent of a master alloy powder. Master alloy powders include iron and from about 1.0 to about 40 weight percent chromium, and from about 1.0 to about 35 weight percent silicon, based on the weight of the master alloy powder.

    摘要翻译： 本发明的冶金粉末组合物包括与母合金粉末组合的铁基粉末作为机械性能增强粉末。 已经发现添加母合金粉末可以增强由冶金粉末组合物制成的最终烧结压实部件的机械性能，特别是在低烧结温度下。 冶金粉末组合物包括至少约80重量％的铁基冶金粉末和约0.10至约20重量％的母合金粉末。 基于母合金粉末的重量，主合金粉末包括铁和约1.0至约40重量％的铬以及约1.0至约35重量％的硅。

    Methods of making and using annealable insulated metal-based powder particles
    43.
    发明申请
    Methods of making and using annealable insulated metal-based powder particles 有权
    制造和使用可退火绝缘金属基粉末颗粒的方法

    公开(公告)号：US20020040077A1

    公开(公告)日：2002-04-04

    申请号：US09970423

    申请日：2001-10-03

    申请人： Hoeganaes Corporation

    发明人： Francis G. Hanejko ,  George Ellis

    IPC分类号： B05D003/02 ,  C08K003/00 ,  C08L063/00

    CPC分类号： C23C26/00 ,  B22F1/02 ,  B22F2998/10 ,  B22F2999/00 ,  H01F1/26 ,  H01F41/0246 ,  Y10T428/2998 ,  B22F1/0096 ,  B22F1/0085

    摘要： Methods of making and using annealable insulated metal-based powder particles are provided. The insulated metal-based powder particles are formed from metal-based core particles that are coated with an annealable insulating material. The annealable insulating material has at least one inorganic compound and at least one organic polymeric resin. The inorganic compound in the insulating material forms a nonporous insulating layer surrounding the metal-based core particles upon heating. The organic polymeric resin preferably aids in dispersing or binding the inorganic compound to the metal-based core particles prior to annealing. The insulated metal-based powder particles produced can be formed into core components that can be annealed to improve the magnetic performance of the core component. The core components produced are particularly useful under AC operating conditions of 500 Hz or lower.

    摘要翻译： 提供了制造和使用可退火绝缘的金属基粉末颗粒的方法。 绝缘金属粉末颗粒由涂有可退火绝缘材料的金属基颗粒形成。 可退火的绝缘材料具有至少一种无机化合物和至少一种有机聚合物树脂。 绝缘材料中的无机化合物在加热时形成围绕金属基核颗粒的无孔绝缘层。 有机聚合物树脂优选在退火之前有助于将无机化合物分散或结合到金属基核颗粒上。 可以将所制造的绝缘金属粉末颗粒形成为能够进行退火以提高核心部件的磁性能的核心部件。 所生产的核心组件在500Hz或更低的AC工作条件下特别有用。

    Iron-based powder mixtures containing binder-lubricant
    45.
    发明授权
    Iron-based powder mixtures containing binder-lubricant 失效
    含有粘合剂润滑剂的铁基粉末混合物

    公开(公告)号：US5298055A

    公开(公告)日：1994-03-29

    申请号：US848264

    申请日：1992-03-09

    申请人： Frederick J. Semel ,  Sydney Luk

    发明人： Frederick J. Semel ,  Sydney Luk

    IPC分类号： B22F1/00 ,  B22F3/02

    CPC分类号： B22F1/0059

    摘要： An improved metallurgical powder composition comprising an iron-based powder and an alloying powder is provided. The composition contains a polyalkylene oxide having a number average molecular weight of at least about 7,000 as a binder. The binder of this invention permits the bonded powder composition to achieve compressibility equivalent to that of unbonded compositions and maintains resistance to dusting and segregation of the alloying powder.

    摘要翻译： 提供了包含铁基粉末和合金粉末的改进的冶金粉末组合物。 组合物含有作为粘合剂的数均分子量为至少约7000的聚环氧烷。 本发明的粘合剂允许粘合粉末组合物达到与未粘合组合物相当的压缩性，并且保持耐粉化和合金粉末偏析的能力。

    Method for preparing binder-treated metallurgical powders containing an organic lubricant
    47.
    发明授权
    Method for preparing binder-treated metallurgical powders containing an organic lubricant 失效
    制备含有机润滑剂的粘合剂处理冶金粉末的方法

    公开(公告)号：US5256185A

    公开(公告)日：1993-10-26

    申请号：US915116

    申请日：1992-07-17

    申请人： Frederick J. Semel ,  Sydney Luk

    发明人： Frederick J. Semel ,  Sydney Luk

    IPC分类号： B22F3/02 ,  B22F1/00 ,  C22C33/02

    CPC分类号： C22C33/0207 ,  B22F1/0059 ,  B22F2003/023 ,  B22F2003/145 ,  B22F2998/00

    摘要： Methods for preparing metallurgical powders containing an organic lubricant are provided. The powders are prepared by wetting a dry admixture of an iron-based powder, at least one alloying powder, and a first organic lubricant with an organic binding agent that is preferably dissolved or dispersed in a solvent. After removal of the solvent, the dried powder composition is admixed with a second organic lubricant.

    摘要翻译： 提供了制备含有机润滑剂的冶金粉末的方法。 通过将优选溶解或分散在溶剂中的有机粘合剂润湿铁基粉末，至少一种合金粉末和第一有机润滑剂的干混合物来制备粉末。 除去溶剂后，将干燥的粉末组合物与第二有机润滑剂混合。

    Doubly-coated iron particles
    48.
    发明授权
    Doubly-coated iron particles 失效
    双重涂层铁颗粒

    公开(公告)号：US5063011A

    公开(公告)日：1991-11-05

    申请号：US365186

    申请日：1989-06-12

    申请人： Howard Rutz ,  Francis G. Hanejko

    发明人： Howard Rutz ,  Francis G. Hanejko

    IPC分类号： B22F1/00 ,  C22C33/02 ,  H01F1/20 ,  H01F1/26 ,  H01F3/08 ,  H01F41/02

    CPC分类号： H01F41/0246 ,  B22F1/0059 ,  C22C33/0228 ,  H01F1/24 ,  H01F1/26 ,  H01F3/08 ,  Y10S264/58 ,  Y10T428/2998

    摘要： Methods of doubly coating iron particles. The methods comprise treating the iron particles with phosphoric acid to form a layer of hydrated iron phosphate at the surfaces of the iron particles. The particles are heated in an inert atmosphere at a temperature and for a time sufficient to convert the hydrated layer to an iron phosphate layer. The particles are then coated with a termoplastic material to provide a coating of thermoplastic material substantially uniformly circumferentially surrounding the iron phosphate layer. Doubly-coated iron particles provided in accordance with this invention are generally useful for forming magnetic components and cores for use in high frequency switching applications.

    摘要翻译： 双重涂覆铁粒子的方法。 所述方法包括用磷酸处理铁颗粒以在铁颗粒的表面形成一层水合磷酸铁。 颗粒在惰性气氛中在足以将水合层转化为磷酸铁层的温度和时间下加热。 然后用活性材料涂覆颗粒，以提供基本均匀地围绕磷酸铁层的热塑性材料的涂层。 根据本发明提供的双重涂覆的铁颗粒通常可用于形成用于高频开关应用的磁性部件和芯体。