公开(公告)号：US5595609A

公开(公告)日：1997-01-21

申请号：US563435

申请日：1995-11-24

申请人： David E. Gay

发明人： David E. Gay

IPC分类号： H01F1/26

CPC分类号： H01F1/26

摘要： A method for stress relieving a compression molded magnetic body is provided for purposes of enhancing the magnetic permeability of the magnetic body. The method involves encapsulating ferromagnetic particles with a thermoplastic polymer coating selected from the group consisting of polybenzimidazole and polyimides having heat deflection temperatures of at least about 400.degree. C. which are capable of withstanding elevated temperatures for a duration which is sufficient to anneal the magnetic body formed from the coated metal particles. As a result, the stresses induced in the magnetic core by the compression molding process can be relieved without detriment to the mechanical properties and magnetic characteristics of the magnetic core.

摘要翻译： 为了提高磁性体的导磁率，提供了一种用于减轻压缩模制磁体的应力的方法。 该方法包括用热塑性聚合物涂层包覆铁磁性颗粒，所述热塑性聚合物涂层选自聚苯并咪唑和具有至少约400℃的热变形温度的聚酰亚胺，其能够耐受升高的温度持续足以使磁体退火 由涂覆的金属颗粒形成。 结果，可以减轻通过压缩成型工艺在磁芯中感应的应力，而不会损害磁芯的机械性能和磁特性。

公开(公告)号：US5271891A

公开(公告)日：1993-12-21

申请号：US915587

申请日：1992-07-20

申请人： David E. Gay ,  Robert W. Ward

发明人： David E. Gay ,  Robert W. Ward

IPC分类号： B22F1/02 ,  B22F1/00 ,  H01F1/22

CPC分类号： B22F1/0059 ,  H01F1/22

摘要： A polymeric coating material is provided for coating powdered materials and, more particularly, for coating powdered metals formed into parts and sintered, such as to form magnetic cores. The thermoplastic material is polyphenylene oxide which, when properly applied to metal particles to form a magnetic core, is characterized by being sufficiently volatile so as to prevent the formation of contaminants or voids within the sintered article which would be detrimental to the physical properties of the sintered article. Moreover, polyphenylene oxide provides sufficient lubrication and adhesion between adjacent metal particles during an initial compaction process so as to sustain the desired shape of the molded article and maximize metal particle density without the use of additional lubricants, thereby preventing the formation of additional contaminants and/or voids within the resultant sintered article from these lubricants.

公开(公告)号：US5567746A

公开(公告)日：1996-10-22

申请号：US357815

申请日：1994-12-16

申请人： David E. Gay

发明人： David E. Gay

IPC分类号： C08K9/08 ,  C08K9/10 ,  H01F1/055 ,  H01F1/057 ,  H01F1/113 ,  H01F1/26 ,  C08K7/16 ,  B05D7/00

CPC分类号： C08K9/10 ,  C08K9/08 ,  H01F1/0558 ,  H01F1/0578 ,  H01F1/113 ,  H01F1/26 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/2991 ,  Y10T428/2998

摘要： Moldable ferromagnetic particles and method of making a magnetizable molding therefrom. The ferromagnetic particles are spray-coated with a slurry comprising insoluble thermoplastic particles suspended in a solution of a soluble polymer to produce a coating on the ferromagnetic particles which comprises a majority of the insoluble thermoplastic particles embedded in a lesser amount of a binder polymer. When compression molded, the insoluble thermoplastic particles form a continuous matrix for the ferromagnetic particles.

摘要翻译： 可成型铁磁颗粒及其可磁化成型的方法。 铁磁颗粒用包含悬浮在可溶性聚合物溶液中的不溶性热塑性颗粒的浆料进行喷涂，以在铁磁颗粒上产生包含大部分嵌入少量粘合剂聚合物中的不溶性热塑性颗粒的涂层。 当压塑时，不溶性热塑性颗粒形成铁磁颗粒的连续基体。

公开(公告)号：US5629092A

公开(公告)日：1997-05-13

申请号：US357890

申请日：1994-12-16

申请人： David E. Gay ,  Howard H.-D. Lee

发明人： David E. Gay ,  Howard H.-D. Lee

IPC分类号： B22F1/02 ,  H01F1/053 ,  H01F1/057 ,  H01F1/06 ,  H01F1/14 ,  H01F1/26 ,  B32B5/16

CPC分类号： H01F1/0533 ,  H01F1/0578 ,  H01F1/26 ,  Y10S428/90 ,  Y10T428/2998

摘要： A mass of ferromagnetic particles having a lubricous shell comprising a plurality of organic lubricant particles embedded in a film of a thermoplastic binder.

摘要翻译： 大量具有润滑壳的铁磁颗粒包含嵌入热塑性粘合剂膜中的多个有机润滑剂颗粒。

公开(公告)号：US5395695A

公开(公告)日：1995-03-07

申请号：US108260

申请日：1993-08-19

申请人： Jon C. Shain ,  David E. Gay

发明人： Jon C. Shain ,  David E. Gay

IPC分类号： H01F1/053 ,  H01F1/057 ,  H01F1/06 ,  B32B15/08 ,  B32B15/18

CPC分类号： H01F1/0578 ,  H01F1/0572 ,  Y10T428/2998 ,  Y10T428/31511 ,  Y10T428/31515 ,  Y10T428/31786 ,  Y10T428/31855

摘要： Oxidation-resistant, individually encapsulated neodymium-iron-boron permanent magnet particles are provided. The particles are individually coated with, preferably, three distinct organic layers and are useful for the subsequent formation of a molded permanent magnet article. The first coating is an antioxidant layer employed for the retardation of oxidation of the coated particle. The second intermediate layer consists of an appropriate thermosetting epoxy to provide the adhesion required during subsequent molding of the particles. The third and outermost layer consists of polystyrene and is employed to keep the particles free flowing, since the epoxy layer may be tacky after deposition, thereby hindering the free flowability of the particles. The coatings are applied sequentially using fluidized bed coating techniques. The encapsulated particles can then be molded and appropriately cured. In addition, the encapsulated particles exhibit enhanced oxidation resistance, including at elevated temperatures.

摘要翻译： 提供了耐氧化，单独包封的钕铁硼永磁体颗粒。 颗粒分别涂覆有优选三个不同的有机层，并且可用于随后形成模制的永磁体制品。 第一涂层是用于延缓涂覆颗粒的氧化的抗氧化层。 第二中间层由适当的热固性环氧树脂组成，以提供随后的颗粒成型期间所需的粘合。 第三和最外层由聚苯乙烯组成，用于保持颗粒自由流动，因为环氧树脂层在沉积后可能发粘，从而阻碍颗粒的自由流动性。 使用流化床涂覆技术依次施涂涂层。 然后可以将包封的颗粒模塑并适当固化。 此外，包封的颗粒表现出增强的抗氧化性，包括在升高的温度下。

公开(公告)号：US5272008A

公开(公告)日：1993-12-21

申请号：US852426

申请日：1992-03-16

申请人： Jon C. Shain ,  David E. Gay

发明人： Jon C. Shain ,  David E. Gay

IPC分类号： H01F1/053 ,  H01F1/057 ,  H01F1/06 ,  B32B15/08 ,  B32B15/18

CPC分类号： H01F1/0578 ,  H01F1/0572 ,  Y10T428/2998 ,  Y10T428/31511 ,  Y10T428/31515 ,  Y10T428/31786 ,  Y10T428/31855

摘要： Oxidation-resistant, individually encapsulated neodymium-iron-boron permanent magnet particles are provided. The particles are individually coated with, preferably, three distinct organic layers and are useful for the subsequent formation of a molded permanent magnet article. The first coating is an antioxidant layer employed for the retardation of oxidation of the coated particle. The second intermediate layer consists of an appropriate thermosetting epoxy to provide the adhesion required during subsequent molding of the particles. The third and outermost layer consists of polystyrene and is employed to keep the particles free flowing, since the epoxy layer may be tacky after deposition, thereby hindering the free flowability of the particles. The coatings are applied sequentially using fluidized bed coating techniques. The encapsulated particles can then be molded and appropriately cured. In addition, the encapsulated particles exhibit enhanced oxidation resistance, including at elevated temperatures.

公开(公告)号：US5637402A

公开(公告)日：1997-06-10

申请号：US635834

申请日：1996-04-23

申请人： David E. Gay

发明人： David E. Gay

IPC分类号： C08K9/08 ,  C08K9/10 ,  H01F1/055 ,  H01F1/057 ,  H01F1/113 ,  H01F1/26 ,  B32B5/16

CPC分类号： C08K9/10 ,  C08K9/08 ,  H01F1/0558 ,  H01F1/0578 ,  H01F1/113 ,  H01F1/26 ,  Y10T428/254 ,  Y10T428/256 ,  Y10T428/2991 ,  Y10T428/2998

摘要： Moldable ferromagnetic particles and method of making a magnetizable molding therefrom. The ferromagnetic particles are spray-coated with a slurry comprising insoluble thermoplastic particles suspended in a solution of a soluble polymer to produce a coating on the ferromagnetic particles which comprises a majority of the insoluble thermoplastic particles embedded in a lesser amount of a binder polymer. When compression molded, the insoluble thermoplastic particles form a continuous matrix for the ferromagnetic particles.

摘要翻译： 可成型铁磁颗粒及其可磁化成型的方法。 铁磁颗粒用包含悬浮在可溶性聚合物溶液中的不溶性热塑性颗粒的浆料进行喷涂，以在铁磁颗粒上产生包含大部分嵌入少量粘合剂聚合物中的不溶性热塑性颗粒的涂层。 当压塑时，不溶性热塑性颗粒形成铁磁颗粒的连续基体。

公开(公告)号：US5607525A

公开(公告)日：1997-03-04

申请号：US308789

申请日：1994-09-19

申请人： David E. Gay

发明人： David E. Gay

IPC分类号： B22F5/08 ,  H02K15/02 ,  B32B31/26

CPC分类号： B22F5/08 ,  H02K15/022 ,  Y10T156/1089 ,  Y10T29/49012

摘要： End segments of a Lundell-type rotor for an AC generator, wherein the base and the teeth portions thereof are compaction molded separately and subsequently joined together and sintered.

摘要翻译： 用于AC发电机的Lundell型转子的端部段，其中基部和其齿部分别被压实模制并随后连接在一起并烧结。

公开(公告)号：US5472661A

公开(公告)日：1995-12-05

申请号：US357493

申请日：1994-12-16

申请人： David E. Gay

发明人： David E. Gay

IPC分类号： B22F1/00 ,  H01F1/053 ,  H01F1/057 ,  H01F1/26 ,  B22F1/02 ,  B22F3/00

CPC分类号： B22F1/0062 ,  B22F1/0059 ,  B22F1/0096 ,  H01F1/0533 ,  H01F1/0578 ,  H01F1/26 ,  B22F2998/00 ,  Y10T428/12014 ,  Y10T428/12049

摘要： Method of distributing and retaining insoluble additive particles uniformly throughout a mass of moldable metal particles. The additive particles are suspended in a solution of a polymeric binder and spray-coated onto the metal particles. When the solvent evaporates, the additives remain glued to the metal particles by the binder.

摘要翻译： 将不溶性添加剂颗粒均匀地分布和保留在整个可模制金属颗粒群中的方法。 将添加剂颗粒悬浮在聚合物粘合剂的溶液中并喷涂在金属颗粒上。 当溶剂蒸发时，添加剂通过粘合剂保持粘合到金属颗粒上。

公开(公告)号：US4146282A

公开(公告)日：1979-03-27

申请号：US830427

申请日：1977-09-06

申请人： David E. Gay

发明人： David E. Gay

IPC分类号： H02G11/02 ,  H01R39/00

CPC分类号： H02G11/02

摘要： A vehicle battery accessory apparatus utilizes a first pair of electrical conductors, having the first ends thereof provided with clamps suitable for convenient coupling to the terminals of the battery, a storage reel upon which the major length of a second pair of electrical conductors may be stored, and a brush and commutating arrangement to electrically couple the second pair of electrical conductors and the first pair of electrical conductors together, the second pair of electrical conductors being provided with electrical connectors of the clamping type and an insulating bar having a pair of lugs thereon such that the bar is provided with lugs for retaining the electrical clamping connectors in a stored non-shorting condition when the apparatus is not in use. Both the storage reel journalled to a rod, and the bar are provided with mounting surfaces that can be affixed to an interior conveniently accessible portion of the vehicle permitting thereby, easy and convenient electrical connection to the vehicle bar by withdrawing the second pair of electrical conductors from the storage position on the reel by exerting a force on the free ends of the second pair of electrical conductors. A spring urges the reel in one direction of rotation such that the second pair of electrical conductors may be wound up on the reel when the second pair of electrical conductors are not in use.

摘要翻译： 车辆电池附件装置利用第一对电导体，其第一端具有适于方便地连接到电池端子的夹具，第二对电导体的主要长度可以存储在该存储卷轴上 以及用于将所述第二对电导体和所述第一对电导体电耦合在一起的刷和换向装置，所述第二对电导体设置有所述夹紧型电连接器和在其上具有一对凸耳的绝缘棒 使得杆在设备不使用时设置有用于将电夹紧连接器保持在存储的非短路状态的凸耳。 两个存储卷轴都安装在一个杆上，并且杆设置有安装表面，该安装表面可以被固定到车辆的内部方便进入的部分，从而允许通过撤回第二对电导体容易和方便的与车辆的电连接 通过在第二对电导体的自由端上施加力而从卷轴上的存储位置。 弹簧将卷轴沿一个旋转方向推动，使得当第二对电导体不使用时，第二对电导体可以卷绕在卷轴上。