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1. 发明申请

US20140328713A1 Double-alloy NdFeB rare earth permanent magnetic material and manufacturing method thereof 审中-公开
标题翻译：双合金NdFeB稀土永磁材料及其制造方法
公开(公告)号：US20140328713A1
公开(公告)日：2014-11-06
申请号：US14047901
申请日：2013-10-07
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： H01F1/053 , B22F9/08 , B22F3/24
CPC分类号： B22F9/08 , B22F2998/10 , C22C2202/02 , H01F1/0577 , B22F9/04 , B22F3/02 , B22F3/10
摘要： A double-alloy NdFeB rare earth permanent magnetic material and manufacturing method thereof are provided. The method comprises respectively melting an A1 alloy comprising heavy rare earth such as Dy, Tb, Ho and Gd as well as an A2 alloy comprising light rare earth such as La, Ce, Pr and Nd; mixing the A1 alloy and the A2 alloy by a two-dimensional or three-dimensional mixer with a ratio of A1/A2=0˜0.5 under protection of nitrogen; producing powder in a jet mill after mixing; collecting fine powder; putting and mixing the powder and the fine powder in the two-dimensional or three-dimensional mixer; putting into a magnetic field pressing machine for pressing under the protection of the nitrogen after mixing and producing permanent magnetic products by sintering, aging, etc. The present invention can obviously decrease rare earth utilization and increase a magnetic energy product and coercivity of the rare earth permanent magnet.
摘要翻译：提供了双合金NdFeB稀土永磁材料及其制造方法。该方法包括分别熔融包含Dy，Tb，Ho和Gd等重稀土类的Al合金以及包含La，Ce，Pr和Nd等轻稀土类的A2合金; 在保护氮气的情况下，通过二维或三维混合器混合A1 / A2 = 0〜0.5的A1合金和A2合金; 混合后在喷射磨机中生产粉末; 收集细粉; 将粉末和细粉末放入和混合在二维或三维混合器中; 加入混合后的氮气保护下进行压制的磁场压制机，通过烧结，老化等制造永磁产品。本发明可明显降低稀土利用率，增加稀土的磁能积和矫顽力永久磁铁

2. 发明授权

US09492869B2 Double-alloy NdFeB rare earth permanent magnetic material and manufacturing method thereof 有权
标题翻译：双合金NdFeB稀土永磁材料及其制造方法
公开(公告)号：US09492869B2
公开(公告)日：2016-11-15
申请号：US14047901
申请日：2013-10-07
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： B22F3/02 , B22F3/10 , B22F9/04 , B22F9/08 , H01F1/057
CPC分类号： B22F9/08 , B22F2998/10 , C22C2202/02 , H01F1/0577 , B22F9/04 , B22F3/02 , B22F3/10
摘要： A double-alloy NdFeB rare earth permanent magnetic material and manufacturing method thereof are provided. The method comprises respectively melting an A1 alloy comprising heavy rare earth such as Dy, Tb, Ho and Gd as well as an A2 alloy comprising light rare earth such as La, Ce, Pr and Nd; mixing the A1 alloy and the A2 alloy by a two-dimensional or three-dimensional mixer with a ratio of A1/A2=0˜0.5 under protection of nitrogen; producing powder in a jet mill after mixing; collecting fine powder; putting and mixing the powder and the fine powder in the two-dimensional or three-dimensional mixer; putting into a magnetic field pressing machine for pressing under the protection of the nitrogen after mixing and producing permanent magnetic products by sintering, aging, etc. The present invention can obviously decrease rare earth utilization and increase a magnetic energy product and coercivity of the rare earth permanent magnet.
摘要翻译：提供了双合金NdFeB稀土永磁材料及其制造方法。该方法包括分别熔融包含Dy，Tb，Ho和Gd等重稀土类的Al合金以及包含La，Ce，Pr和Nd等轻稀土类的A2合金; 在保护氮气的情况下，通过二维或三维混合器混合A1 / A2 = 0〜0.5的A1合金和A2合金; 混合后在喷射磨机中生产粉末; 收集细粉; 将粉末和细粉末放入和混合在二维或三维混合器中; 加入混合后的氮气保护下进行压制的磁场压制机，通过烧结，老化等制造永磁产品。本发明可明显降低稀土利用率，增加稀土的磁能积和矫顽力永久磁铁

3. 发明授权

US09579724B2 Method for producing neodymium-iron-boron rare earth permanent magnetic device 有权
标题翻译：钕铁硼稀土永磁设备的制造方法
公开(公告)号：US09579724B2
公开(公告)日：2017-02-28
申请号：US14040712
申请日：2013-09-29
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： B22F3/12 , B22F9/04 , H01F1/057 , B22F3/24 , H01F41/02 , C22C38/00
CPC分类号： B22F9/04 , B22F3/24 , B22F2003/248 , B22F2998/10 , B22F2999/00 , C22C38/00 , H01F1/0577 , H01F41/0273 , B22F2201/20 , B22F9/023 , B22F3/087 , B22F3/04 , B22F3/10 , B22F2003/247 , B22F2003/241
摘要： A method for producing neodymium-iron-boron rare earth permanent magnetic materials mainly comprises processes of: alloy smelting, coarsely pulverization, milling, magnetic compaction, sintering, machining, vacuum heat treatment, and etc. Magnetic performance of permanent magnetic devices is increased by improving technologies of hydrogen pulverization, milling by jet mill, and vacuum heat treatment, in such a manner that usage amount of rare earth is decreased. The present invention is applicable in producing rare earth permanent magnetic materials having high performance.
摘要翻译：一种生产钕铁硼稀土永磁材料的方法主要包括：合金冶炼，粗粉碎，研磨，磁性压实，烧结，机械加工，真空热处理等工艺。永磁装置的磁性能由改进氢粉碎技术，通过喷射磨机研磨和真空热处理，稀土的使用量减少。本发明可用于生产具有高性能的稀土永磁材料。

4. 发明申请

US20150243433A1 Method for producing neodymium-iron-boron rare earth permanent magnetic material 审中-公开
标题翻译：钕铁硼稀土永磁材料的制备方法
公开(公告)号：US20150243433A1
公开(公告)日：2015-08-27
申请号：US14040710
申请日：2013-09-29
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： H01F41/02 , B22F3/24 , H01F1/053 , B22F9/04
CPC分类号： B22F9/04 , B22F3/24 , B22F2003/248 , B22F2009/044 , B22F2998/10 , C22C33/0278 , H01F1/0577 , H01F41/0273 , B22F2009/048 , B22F3/04 , B22F3/1017
摘要： A method for producing neodymium-iron-boron rare earth permanent magnetic materials comprises: controlling technological parameters of alloy smelting, coarsely pulverization, milling by jet mill, and compaction; and adding nano-sized micro powder of oxide, in such a manner that a particle size of milling by the jet mill is decreased, and fine powder collected by the powder filter and powder collected by a cyclone collector are mixed. Utilization rate of the materials and performance of magnets are significantly improved. Usage amount of rare earth is significantly saved, especially usage amount of heavy rare earth. Thus, the scarce resources are protected.
摘要翻译：一种生产钕铁硼稀土永磁材料的方法，包括：控制合金冶炼的技术参数，粗粉碎，喷磨机研磨和压实; 并加入纳米尺寸的氧化物微粉，使得通过喷射式研磨机研磨的粒径降低，并将由粉末过滤器收集的细粉末和由旋风收集器收集的粉末混合。材料的利用率和磁体性能得到显着提高。稀土使用量明显节省，特别是重稀土使用量。因此，资源匮乏得到保护。

5. 发明授权

US09427804B2 Method for producing a high-performance neodymium—iron—boron rare earth permanent magnetic material 有权
标题翻译：高性能钕铁硼稀土永磁材料的制造方法
公开(公告)号：US09427804B2
公开(公告)日：2016-08-30
申请号：US14049849
申请日：2013-10-09
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： B22F3/087 , B22F3/10 , B22F9/04 , C22C1/10 , H01F1/057 , B22F1/00 , B22F9/02
CPC分类号： B22F1/0081 , B22F9/023 , B22F2998/10 , C22C1/1084 , C22C2001/1089 , H01F1/0573 , H01F1/0577 , B22F9/04 , B22F2009/044 , B22F3/087 , B22F3/10
摘要： In the method for producing a high-performance neodymium-iron-boron rare earth permanent magnetic material of the present invention, the degree of alignment of the magnet can be improved by preparing the pre-sintered alloy material, the particle size of the powder ground by the jet mill can be refined and the fine powder in the filter of the jet mill can be mixed with the powder collected by the cyclone collector by controlling the oxygen content of the jet mill and adding the nanoscale oxide fine powder. The present invention can significantly improve the utilization ratio of the material and the performance of the magnet, save the use of the rare earth, and especially the heavy rare earth, thereby protecting the scare resources.
摘要翻译：在本发明的高性能钕铁硼稀土永磁材料的制造方法中，通过制备预烧结合金材料，粉末粉末的粒径可以提高磁体的取向度可以通过喷射式粉碎机精制，并通过控制喷射磨机的氧含量和加入纳米级氧化物细粉末，将喷射式粉碎机过滤器中的细粉末与旋风收集器收集的粉末混合。本发明可以显着提高材料的利用率和磁铁的性能，节省稀土，特别是重稀土的使用，从而保护恐慌资源。

6. 发明授权

US09267185B2 Rotating vacuum heat treatment equipment 有权
标题翻译：旋转真空热处理设备
公开(公告)号：US09267185B2
公开(公告)日：2016-02-23
申请号：US14047915
申请日：2013-10-07
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： C21D9/00 , B22F1/00 , F27B5/04 , F27B7/06
CPC分类号： C21D9/0031 , B22F1/00 , B22F9/023 , B22F9/04 , B22F2998/10 , C22C2202/02 , F27B5/04 , F27B7/06 , B22F3/02 , B22F3/15
摘要： A rotating vacuum heat treatment equipment, applicable for heat treatment of rare earth permanent magnetic devices, hydrogen pulverization of rare earth permanent magnetic alloy, and heat treatment of mechanical electronic components, mainly comprises: a vacuum unit, a gas cooling device, and a vacuum furnace, wherein an insulating layer is provided in the vacuum furnace, a heater is provided in the insulating layer, a rotating cylinder is provided in the heater, a nozzle, connected with pipelines of the gas cooling device, is provided on the insulating layer, and cooled gas is sprayed to the rotating cylinder via the nozzle.
摘要翻译：一种适用于稀土永磁设备热处理，稀土永磁合金氢粉碎和机械电子元件热处理的旋转真空热处理设备，主要包括：真空单元，气体冷却装置和真空炉，其中在真空炉中设置绝缘层，在绝缘层中设置加热器，在加热器中设置有旋转圆筒，在绝缘层上设置有与气体冷却装置的管道连接的喷嘴，并且经由喷嘴将冷却的气体喷射到旋转圆筒。

7. 发明授权

US09415445B2 Method for producing neodymium-iron-boron rare earth permanent magnetic material 有权
公开(公告)号：US09415445B2
公开(公告)日：2016-08-16
申请号：US14040710
申请日：2013-09-29
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： H01F1/053 , B22F9/04 , C22C33/02 , H01F1/057 , H01F41/02 , B22F3/24
CPC分类号： B22F9/04 , B22F3/24 , B22F2003/248 , B22F2009/044 , B22F2998/10 , C22C33/0278 , H01F1/0577 , H01F41/0273 , B22F2009/048 , B22F3/04 , B22F3/1017
摘要： A method for producing neodymium-iron-boron rare earth permanent magnetic materials comprises: controlling technological parameters of alloy smelting, coarsely pulverization, milling by jet mill, and compaction; and adding nano-sized micro powder of oxide, in such a manner that a particle size of milling by the jet mill is decreased, and fine powder collected by the powder filter and powder collected by a cyclone collector are mixed. Utilization rate of the materials and performance of magnets are significantly improved. Usage amount of rare earth is significantly saved, especially usage amount of heavy rare earth. Thus, the scarce resources are protected.

8. 发明申请

US20150248968A1 Method for producing neodymium-iron-boron rare earth permanent magnetic device 审中-公开
标题翻译：钕铁硼稀土永磁设备的制造方法
公开(公告)号：US20150248968A1
公开(公告)日：2015-09-03
申请号：US14040712
申请日：2013-09-29
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： H01F41/02 , B22F9/04 , B22F3/24 , B22F5/00 , H01F1/057 , B22F3/12
CPC分类号： B22F9/04 , B22F3/24 , B22F2003/248 , B22F2998/10 , B22F2999/00 , C22C38/00 , H01F1/0577 , H01F41/0273 , B22F2201/20 , B22F9/023 , B22F3/087 , B22F3/04 , B22F3/10 , B22F2003/247 , B22F2003/241
摘要： A method for producing neodymium-iron-boron rare earth permanent magnetic materials mainly comprises processes of: alloy smelting, coarsely pulverization, milling, magnetic compaction, sintering, machining, vacuum heat treatment, and etc. Magnetic performance of permanent magnetic devices is increased by improving technologies of hydrogen pulverization, milling by jet mill, and vacuum heat treatment, in such a manner that usage amount of rare earth is decreased. The present invention is applicable in producing rare earth permanent magnetic materials having high performance.
摘要翻译：一种生产钕铁硼稀土永磁材料的方法主要包括：合金冶炼，粗粉碎，研磨，磁性压实，烧结，机械加工，真空热处理等工艺。永磁装置的磁性能由改进氢粉碎技术，通过喷射磨机研磨和真空热处理，稀土的使用量减少。本发明可用于生产具有高性能的稀土永磁材料。

9. 发明申请

US20140328712A1 Vacuum heat treatment method and equipment for NdFeB rare earth permanent magnetic devices 审中-公开
标题翻译：钕铁硼稀土永磁设备真空热处理方法及设备
公开(公告)号：US20140328712A1
公开(公告)日：2014-11-06
申请号：US14024590
申请日：2013-09-11
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： H01F41/02 , H01F1/053
CPC分类号： H01F41/0293 , H01F1/0577 , H01F41/0273
摘要： A vacuum heat treatment method for NdFeB rare earth permanent magnetic devices and an equipment thereof are disclosed. A rotary vacuum heat treatment equipment is for processing the NdFeB rare earth permanent magnetic devices with a vacuum heat treatment and obviously improves magnetic performance of the NdFeB rare earth permanent magnetic device, especially coercivity, which facilitates reducing a usage of heavy rare earth elements and protecting rare earth resources. Thus the vacuum heat treatment method and the equipment thereof are able to manufacture high-performance rare earth permanent magnetic devices.
摘要翻译：公开了一种用于NdFeB稀土永磁设备的真空热处理方法及其设备。一种旋转式真空热处理设备，用于对真空热处理的NdFeB稀土永磁体进行处理，显着提高NdFeB稀土永磁体的磁性能，特别是矫顽力，有利于减少重稀土元素的使用和保护稀土资源。因此，真空热处理方法及其设备能够制造高性能稀土永磁装置。

10. 发明申请

US20140328711A1 Method for producing a high-performance neodymium-iron-boron rare earth permanent magnetic material 审中-公开
标题翻译：高性能钕铁硼稀土永磁材料的制造方法
公开(公告)号：US20140328711A1
公开(公告)日：2014-11-06
申请号：US14049849
申请日：2013-10-09
申请人： China North Magnetic & Electronic Technology Co., LTD
发明人： Haotian Sun
IPC分类号： H01F41/02 , B22F1/00 , B22F5/00
CPC分类号： B22F1/0081 , B22F9/023 , B22F2998/10 , C22C1/1084 , C22C2001/1089 , H01F1/0573 , H01F1/0577 , B22F9/04 , B22F2009/044 , B22F3/087 , B22F3/10
摘要： In the method for producing a high-performance neodymium-iron-boron rare earth permanent magnetic material of the present invention, the degree of alignment of the magnet can be improved by preparing the pre-sintered alloy material, the particle size of the powder ground by the jet mill can be refined and the fine powder in the filter of the jet mill can be mixed with the powder collected by the cyclone collector by controlling the oxygen content of the jet mill and adding the nanoscale oxide fine powder. The present invention can significantly improve the utilization ratio of the material and the performance of the magnet, save the use of the rare earth, and especially the heavy rare earth, thereby protecting the scare resources.
摘要翻译：在本发明的高性能钕铁硼稀土永磁材料的制造方法中，通过制备预烧结合金材料，粉末粉末的粒径可以提高磁体的取向度可以通过喷射式粉碎机精制，并通过控制喷射磨机的氧含量和加入纳米级氧化物细粉末，将喷射式粉碎机过滤器中的细粉末与旋风收集器收集的粉末混合。本发明可以显着提高材料的利用率和磁铁的性能，节省稀土，特别是重稀土的使用，从而保护恐慌资源。

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