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11. 发明授权

US6074492A Bonded Nd-Fe-B magnets without volumetric expansion defects 失效
标题翻译：粘结Nd-Fe-B磁体，没有体积膨胀缺陷
公开(公告)号：US6074492A
公开(公告)日：2000-06-13
申请号：US790
申请日：1997-12-30
申请人： Viswanathan Panchanathan
发明人： Viswanathan Panchanathan
IPC分类号： H01F1/057
CPC分类号： H01F1/057 , H01F1/0578
摘要： A rare earth-iron-boron magnetic composition containing a rare earth fluoride compound in a sufficient amount to reduce or eliminate the formation of rare earth hydroxide and a method of making the same. The reduction or elimination of the formation of rare earth hydroxide substantially eliminates or significantly reduces eruptions in bonded magnets caused by volumetric expansion defects.
摘要翻译：一种含有稀土氟化物的稀土 - 铁 - 硼磁性组合物及其制备方法，其含量足以减少或消除稀土氢氧化物的形成。减少或消除稀土氢氧化物的形成基本上消除或显着地减少了由体积膨胀缺陷引起的粘结磁体的喷发。

12. 发明授权

US5433795A Fabrication of permanent magnets without loss in magnetic properties 失效
标题翻译：永磁体的制造，磁性不损失
公开(公告)号：US5433795A
公开(公告)日：1995-07-18
申请号：US122983
申请日：1993-09-20
申请人： Viswanathan Panchanathan , John E. Mason
发明人： Viswanathan Panchanathan , John E. Mason
IPC分类号： H01F1/057
CPC分类号： H01F1/057 , H01F1/0576
摘要： A method is provided for forming high coercivity permanent magnets from a rare earth-iron-boron metal, wherein the permanent magnets exhibit high intrinsic coercivity comparable to that of the rare earth-iron-boron metal alloy when formed by machining and appropriately heat treating the metal alloy in air at a temperature greater than the Curie temperature of the material, prior to or after the machining operation. As a result, high coercivity permanent magnets can be selectively sized and shaped to satisfy specific design requirements, without requiring that a punch and die be specially designed and manufactured to produce the permanent magnets. The heat treatment method is able to promote machinability of the metal alloy without substantially causing a loss in magnetic properties. Alternatively, the heat treatment method can be employed to substantially restore the magnetic properties of a permanent magnet which were previously reduced by conventional annealing practices.
摘要翻译：提供了一种用于从稀土 - 铁 - 硼金属形成高矫顽力永磁体的方法，其中永磁体具有与稀土 - 铁 - 硼金属合金相当的高固有矫顽力，当通过机械加工和适当热处理金属合金在大于加工操作之前或之后的材料的居里温度的空气中。结果，高矫顽力永磁体可以选择性地定尺寸和成形以满足特定的设计要求，而不需要专门设计和制造冲头和模具来制造永磁体。热处理方法能够提高金属合金的机械加工性，而基本上不会导致磁性的损失。或者，可以使用热处理方法来基本上恢复先前通过常规退火实践减少的永磁体的磁性能。

13. 发明授权

US4410490A Nickel and cobalt alloys which contain tungsten aand carbon and have been processed by rapid solidification process and method 失效
标题翻译：含有钨和碳的镍和钴合金，并通过快速凝固过程和方法进行处理
公开(公告)号：US4410490A
公开(公告)日：1983-10-18
申请号：US397053
申请日：1982-07-12
申请人： Ranjan Ray , Viswanathan Panchanathan
发明人： Ranjan Ray , Viswanathan Panchanathan
IPC分类号： B22F9/00 , C22C32/00 , C22C45/04 , C22C38/08 , C22C38/22
CPC分类号： B22F9/007 , C22C32/0047 , C22C45/04
摘要： New nickel and cobalt base alloys containing tungsten and carbon are disclosed. The alloys are subjected to rapid solidification processing (RSP) technique which produces cooling rates between 10.sup.5 .degree. to 10.sup.7 .degree. C./sec. The as-quenched ribbon, powder, etc. consists predominantly of amorphous phase. The amorphous phase is subjected to suitable heat treatments so as to produce a transformation to a microcrystalline alloy which includes carbides; this heat treated alloy exhibits high hardness combined with toughness for many applications wherein superhard materials are required.
摘要翻译：公开了含有钨和碳的新的镍和钴基合金。该合金经受快速凝固处理（RSP）技术，其产生105至107℃/秒之间的冷却速率。淬火带，粉末等主要由非晶相组成。对非晶相进行适当的热处理，以产生包括碳化物的微晶合金的转变; 这种热处理合金在需要超硬材料的许多应用中表现出高硬度和韧性。

14. 发明授权

US4402745A New iron-aluminum-copper alloys which contain boron and have been processed by rapid solidification process and method 失效
标题翻译：新的含有硼的铁 - 铝 - 铜合金，并通过快速凝固过程和方法进行处理
公开(公告)号：US4402745A
公开(公告)日：1983-09-06
申请号：US257912
申请日：1981-04-27
申请人： Ranjan Ray , Viswanathan Panchanathan , Bill C. Giessen
发明人： Ranjan Ray , Viswanathan Panchanathan , Bill C. Giessen
IPC分类号： C22C45/02 , B22F1/00
CPC分类号： C22C45/02
摘要： New iron rich metal alloys containing aluminum and copper along with specific amounts of boron are disclosed. The alloys are subjected to rapid solidification processing (RSP) technique which produces cooling rates between .about.10.sup.5 to 10.sup.7 .degree.C./sec. The as-quenched ribbon, powder etc. consists primarily of a metastable crystalline solid solution phase. The metastable crystalline phases are subjected to suitable heat treatments so as to produce a transformation to a stable multiphase microstructure which includes borides; this heat treated alloy exhibits superior mechanical properties with good corrosion and/or oxidation resistance for numerous engineering applications.
摘要翻译：公开了含有铝和铜的新的富含铁的金属合金以及特定量的硼。对这些合金进行快速凝固处理（RSP）技术，其产生的差异在105至107℃/秒之间。淬火带，粉末等主要由亚稳态的结晶固溶体相组成。对亚稳态结晶相进行适当的热处理，以产生包含硼化物的稳定多相显微组织的转变; 这种热处理合金在许多工程应用中表现出优异的机械性能和良好的耐腐蚀性和/或抗氧化性。

15. 发明授权

US4400212A Cobalt-chromium alloys which contain carbon and have been processed by rapid solidification process and method 失效
标题翻译：含碳的钴 - 铬合金，并通过快速凝固过程和方法加工
公开(公告)号：US4400212A
公开(公告)日：1983-08-23
申请号：US340481
申请日：1982-01-18
申请人： Ranjan Ray , Viswanathan Panchanathan
发明人： Ranjan Ray , Viswanathan Panchanathan
IPC分类号： B22F9/00 , C22C1/04 , C22C45/00 , B22F1/00
CPC分类号： C22C1/0433 , B22F9/008 , C22C45/008
摘要： New cobalt base alloys containing chromium and carbon are disclosed. The alloys are subjected to rapid solidification processing (RSP) technique which produces cooling rates between 10.sup.5 to 10.sup.7 oC/sec. The as-quenched ribbon, powder etc. consists predominantly of amorphous phase. The amorphous phase is subjected to suitable heat treatments so as to produce a transformation to a microcrystalline alloy which includes carbides; this heat treated alloy exhibits superior mechanical properties for numerous industrial applications.
摘要翻译：公开了含有铬和碳的新型钴基合金。该合金经受快速凝固处理（RSP）技术，其产生105至107℃/秒之间的冷却速率。淬火带，粉末等主要由非晶相组成。对非晶相进行适当的热处理，以产生包括碳化物的微晶合金的转变; 该热处理合金对于许多工业应用表现出优异的机械性能。

16. 发明授权

US4395464A Copper base alloys made using rapidly solidified powders and method 失效
标题翻译：使用快速凝固粉末制备的铜基合金和方法
公开(公告)号：US4395464A
公开(公告)日：1983-07-26
申请号：US249926
申请日：1981-04-01
申请人： Viswanathan Panchanathan , Ranjan Ray , Bill C. Giessen
发明人： Viswanathan Panchanathan , Ranjan Ray , Bill C. Giessen
IPC分类号： C22C9/06 , B22F7/00 , B22F9/00
CPC分类号： C22C9/06 , Y10T428/12014
摘要： New copper-rich metal alloys containing nickel along with certain specific amounts of boron are disclosed. The alloys are subjected to a rapid solidification processing (RSP) technique which produces cooling rates between .about.10.sup.5.degree. to 10.sup.7 .degree. C./sec. The asquenched ribbon, powder, etc. consists primarily of a metastable crystalline solid solution phase. The metastable crystalline phases are subjected to suitable heat treatments so as to produce a transformation to a stable multiphase microstructure, which includes borides. This heat treated alloy exhibits superior mechanical properties with good corrosion and/or oxidation resistance for numerous engineering applications.
摘要翻译：公开了含有镍的新的富含铜的金属合金以及特定量的硼。对合金进行快速凝固处理（RSP）技术，其产生105至107℃/秒之间的冷却速率。缎带，粉末等主要由亚稳态的结晶固溶体相组成。对亚稳态结晶相进行适当的热处理，以产生包括硼化物在内的稳定多相显微组织的转变。该热处理合金在许多工程应用中表现出优异的机械性能和良好的耐腐蚀和/或抗氧化性能。

17. 发明授权

US08957669B2 Magnet and holder assembly having improved rotational and axial stability 有权
标题翻译：具有改进的旋转和轴向稳定性的磁体和保持器组件
公开(公告)号：US08957669B2
公开(公告)日：2015-02-17
申请号：US13099091
申请日：2011-05-02
申请人： Stanley Byron Musselman , Viswanathan Panchanathan , Mitchell L Spencer
发明人： Stanley Byron Musselman , Viswanathan Panchanathan , Mitchell L Spencer
IPC分类号： G01P3/54 , G01B7/30 , G01B3/48 , H01F7/02 , G01P1/02 , G01P3/487
CPC分类号： H01F7/0221 , G01P1/02 , G01P3/487
摘要： A magnet held in a magnet holder is constrained against radial or axial instability, or against both, by a shape on either component in contact with complementary shape on the other component, the shaped components generally defining a tab-and-slot arrangement. The magnet component may be a bonded magnet and in one embodiment may be formed in place by injection molding. The magnet also will exhibit improved magnet properties when magnetized to have lines of polarity matching a path defined by the bulk of the magnetic material as governed by the location of tabs on the magnet. The invention is useful in magnet-sensor assemblies found in industrial applications and in automotive applications such as power steering systems.
摘要翻译：保持在磁体保持器中的磁体通过在另一部件上与互补形状接触的任一部件上的形状而被限制在径向或轴向不稳定性或两者之间，所述成形部件通常限定突出和插槽布置。磁体组件可以是粘结磁体，并且在一个实施例中可以通过注射成型形成就位。当磁化时，磁体还将表现出改善的磁体特性，以使线极性匹配由磁体材料的大部分限定的路径，由磁体上的凸片的位置决定。本发明可用于工业应用中和汽车应用如动力转向系统中的磁传感器组件。

18. 发明申请

US20140251816A1 METHOD FOR MAKING A MAGNET ROTOR ASSEMBLY 审中-公开
标题翻译：制造磁铁转子总成的方法
公开(公告)号：US20140251816A1
公开(公告)日：2014-09-11
申请号：US14272311
申请日：2014-05-07
申请人： Stanley Byron Musselman , Edward E. Welker , Mitchell L. Spencer , Viswanathan Panchanathan
发明人： Stanley Byron Musselman , Edward E. Welker , Mitchell L. Spencer , Viswanathan Panchanathan
IPC分类号： H02K15/03
CPC分类号： H02K15/03 , H02K1/2733 , H02K1/28 , Y10T29/49012
摘要： A method for making a magnet rotor assembly part by providing a bonded metal part having a determinable crush strength, impregnating the bonded metal part with a curable resin and curing the resin so that the crush strength of the assembly part is increased above the determinable crush strength both initially and after extended exposure to temperatures of at least 160° C. Improved crush strength in the magnet sleeve and in other bonded metal parts, both initially and after exposure to high temperatures is accomplished by impregnating the parts with a curable resin.
摘要翻译：一种通过提供具有可确定的压碎强度的接合金属部件来制造磁体转子组件的方法，用可固化树脂浸渍粘合的金属部分并固化树脂，使得组装部件的抗碎强度增加到高于可确定的压碎强度首先和延长暴露于至少160℃的温度之后。首先和暴露于高温之后，磁体套筒和其它粘合金属部件中的改进的抗压强度通过用可固化树脂浸渍部件来实现。

19. 发明申请

US20090010784A1 Powdered metals and structural metals having improved resistance to heat and corrosive fluids and b-stage powders for making such powdered metals 审中-公开
标题翻译：具有改善的耐热性和腐蚀性流体的粉末金属和结构金属以及用于制造这种粉末状金属的b阶粉末
公开(公告)号：US20090010784A1
公开(公告)日：2009-01-08
申请号：US12152383
申请日：2008-05-13
申请人： Edward E. Welker , Mitchell L. Spencer , Viswanathan Panchanathan
发明人： Edward E. Welker , Mitchell L. Spencer , Viswanathan Panchanathan
IPC分类号： F04B17/03 , B32B5/16 , B32B15/098 , B32B27/04 , B05D5/00 , B05D7/00 , C08L61/10
CPC分类号： H01F1/0578 , B22F1/0062 , C08L61/06 , C22C33/0257 , C22C2202/02 , Y10T428/25 , Y10T428/258 , Y10T428/31504 , Y10T428/31678 , Y10T428/31942
摘要： Improved resin-bonded powdered metal components are protected against corrosion and reduction of crush strength during contact with corrosive fluids such as alcohols, ethanol-containing fuels, glycols and peroxide-containing fuels by a resin system coating that, when cured, provides a relatively high crosslink density and relatively few hydrolysable radicals. Magnetic properties of resin-bonded powdered metal magnets are protected from heat degradation by the cured resin coating. The coating can be a heat-cured resin system comprising a phenol novolac resin and a compatible hardener. In one embodiment magnetizable powdered materials have an uncured resin system coating to provide a B-stage material that can be cured after compression shaping.
摘要翻译：改进的树脂粘合粉末金属组分通过树脂体系涂层防止腐蚀和降低与腐蚀性液体如醇，含乙醇的燃料，二醇和含过氧化物的燃料接触的压碎强度，当固化时，提供较高的交联密度和相对少的可水解基团。树脂粘结的粉末金属磁体的磁性能被保护而不被固化树脂涂层的热降解。涂层可以是包含苯酚酚醛清漆树脂和相容的硬化剂的热固化树脂体系。在一个实施方案中，可磁化粉末材料具有未固化的树脂体系涂层以提供可在压缩成形后固化的B阶材料。

20. 发明授权

US06183572B2 Isotropic rare earth material of high intrinsic induction 失效
标题翻译：各向同性稀土材料的高固有感应
公开(公告)号：US06183572B2
公开(公告)日：2001-02-06
申请号：US09000789
申请日：1997-12-30
申请人： Viswanathan Panchanathan , William Ray Green , Kevin Allen Young
发明人： Viswanathan Panchanathan , William Ray Green , Kevin Allen Young
IPC分类号： H01F1057
CPC分类号： C22C1/0441 , B22F2998/00 , B22F2998/10 , H01F1/0571 , B22F9/008 , B22F9/10 , B22F9/04
摘要： Isotropic magnetic alloy powder having an intrinsic magnetic induction of at least two third of its magnetic remanence and method for making same are provided. The powder is made from an alloy having a composition comprising, by weight percentage, approximately 15 to 35 percent of one or more rare earth metals, approximately 0.5 to 4.5 percent of boron, and approximately 0 to 20 percent of cobalt, balanced with iron. The alloy powder is made by a process wherein an amount of the alloy is melt and spun in an inert environment, preferably at a distance between an orifice and a wheel being less than one and one half inches, into ribbons, followed by crushing the ribbons into powder and annealing the powder.
摘要翻译：提供具有至少其磁残余量的三分之一的固有磁感应的各向同性磁性合金粉末及其制造方法。粉末由合金制成，该合金具有按重量百分比计包含一种或多种稀土金属的约15％至35％，约0.5％至4.5％的硼和约0％至20％的钴，其与铁平衡。合金粉末是通过一种方法制成的，其中合金的量在惰性环境中熔融和纺丝，优选地在小于一个半英寸的孔和轮之间的距离处，变成丝带，然后将丝带粉末并退火粉末。

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