公开(公告)号：US09920406B2

公开(公告)日：2018-03-20

申请号：US14709046

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

IPC: H01F1/057 ,  C22C38/00 ,  H01F41/02 ,  C22C38/16 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C22C1/00 ,  C22C38/32 ,  B22F1/00 ,  B22F9/02

CPC classification number: C22C38/002 ,  B22F1/004 ,  B22F9/023 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/002 ,  C22C1/005 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C38/32 ,  H01F1/0577 ,  H01F41/0273 ,  B22F1/0003 ,  B22F1/0059 ,  B22F9/08 ,  B22F9/04 ,  B22F2009/044 ,  B22F3/02 ,  B22F3/1021 ,  B22F3/1028 ,  B22F2003/247

Abstract: A method for manufacturing a high-performance NdFeB rare earth permanent magnetic device which is made of an R—Fe—Co—B-M strip casting alloy, a micro-crystal HR—Fe alloy fiber, and TmGn compound micro-powder, includes steps of: manufacturing the R—Fe—Co—B-M strip casting alloy, manufacturing the micro-crystal HR—Fe alloy fiber, providing hydrogen decrepitating, pre-mixing, powdering with jet milling, post-mixing, providing magnetic field pressing, sintering and ageing, wherein after a sintered NdFeB permanent magnet is manufactured, machining and surface-treating the sintered NdFeB permanent magnet for forming a rare earth permanent device.

公开(公告)号：US20150243416A1

公开(公告)日：2015-08-27

申请号：US14709046

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

IPC: H01F1/057 ,  H01F1/055 ,  C22C38/00 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  H01F41/02 ,  C22C38/16

CPC classification number: C22C38/002 ,  B22F1/004 ,  B22F9/023 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/002 ,  C22C1/005 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C38/32 ,  H01F1/0577 ,  H01F41/0273 ,  B22F1/0003 ,  B22F1/0059 ,  B22F9/08 ,  B22F9/04 ,  B22F2009/044 ,  B22F3/02 ,  B22F3/1021 ,  B22F3/1028 ,  B22F2003/247

Abstract: A method for manufacturing a high-performance NdFeB rare earth permanent magnetic device which is made of an R—Fe—Co—B-M strip casting alloy, a micro-crystal HR—Fe alloy fiber, and TmGn compound micro-powder, includes steps of: manufacturing the R—Fe—Co—B-M strip casting alloy, manufacturing the micro-crystal HR—Fe alloy fiber, providing hydrogen decrepitating, pre-mixing, powdering with jet milling, post-mixing, providing magnetic field pressing, sintering and ageing, wherein after a sintered NdFeB permanent magnet is manufactured, machining and surface-treating the sintered NdFeB permanent magnet for forming a rare earth permanent device.

Abstract translation: 由R-Fe-Co-BM带状铸造合金，微晶HR-Fe合金纤维和TmGn复合微粉末制成的高性能NdFeB稀土永久磁铁装置的制造方法包括以下步骤： ：制造R-Fe-Co-BM带钢铸造合金，制造微晶HR-Fe合金纤维，提供氢气破裂，预混合，喷射粉碎，后混合，提供磁场压制，烧结和老化 其特征在于，在制造烧结NdFeB永磁体之后，对用于形成稀土永久元件的NdFeB烧结烧结永磁体进行机械加工和表面处理。

公开(公告)号：US20150194259A1

公开(公告)日：2015-07-09

申请号：US14662235

申请日：2015-03-18

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun ,  Xiaodong Chen

IPC: H01F41/00 ,  H01F1/057 ,  B22F3/12 ,  B22F3/04 ,  B22F3/26 ,  B22F7/08 ,  B22F7/00 ,  B22F9/08 ,  C23C14/35 ,  C23C14/16 ,  C23C14/08 ,  C23C28/02 ,  C23C28/04 ,  C23C28/00 ,  H01F41/02

CPC classification number: C23C28/3455 ,  B22F3/04 ,  B22F3/12 ,  B22F3/24 ,  B22F7/008 ,  B22F7/08 ,  B22F9/08 ,  B22F2003/242 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  C23C14/022 ,  C23C14/028 ,  C23C14/081 ,  C23C14/083 ,  C23C14/086 ,  C23C14/165 ,  C23C14/223 ,  C23C28/021 ,  C23C28/321 ,  C23C28/324 ,  C23C28/345 ,  H01F41/026 ,  B22F9/023 ,  B22F2009/044 ,  B22F1/0003 ,  B22F3/02 ,  B22F3/10 ,  B22F2003/248 ,  B22F3/16 ,  B22F2202/05 ,  B22F2201/02

Abstract: A method for manufacturing a NdFeB rare earth permanent magnetic device with composite plating includes steps of: firstly melting alloy, casting the alloy in a melted state onto a rotation copper roller with a water cooling function, so as to be cooled for forming alloy flakes; hydrogen decrepitating; mixing after hydrogen decrepitating; jet milling after mixing; mixing under nitrogen protection before molding in a nitrogen protection magnetic field pressing machine, and then packing in a protection tank before being moved out of the protection tank and isostatic pressing; sintering in a sintering device and aging for forming a NdFeB rare earth permanent magnet; machining for forming a NdFeB rare earth permanent magnetic device; and plating the NdFeB rare earth permanent magnetic device, wherein three layers of plated films are formed.

Abstract translation: 制造具有复合镀覆的NdFeB稀土永磁装置的方法包括以下步骤：首先熔化合金，将熔融状态的合金浇铸到具有水冷功能的旋转铜辊上，以冷却形成合金薄片; 氢气破裂 氢气破裂后混合; 混合后喷射研磨; 在氮保护磁场冲压机成型之前，在氮气保护下混合，然后在保护罐中移出保护罐并进行等静压之前包装在保护罐中; 在烧结装置中烧结并老化以形成NdFeB稀土永磁体; 用于形成NdFeB稀土永磁装置的加工; 并对NdFeB稀土永磁体进行电镀，形成三层镀膜。

公开(公告)号：US20140348690A1

公开(公告)日：2014-11-27

申请号：US14367897

申请日：2013-02-05

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Xiaodong Chen ,  Baoyu Sun

IPC: H01F41/02

CPC classification number: H01F41/0266 ,  B22F3/003 ,  C22C2202/02 ,  F27B17/02 ,  F27B21/00 ,  F27D7/06

Abstract: A method for flexibly sintering rare earth permanent magnetic alloy comprises: (1) weighing fine powder of rare earth permanent magnetic alloy, loading the fine powder in moulds, and orientedly compacting the fine powder in a press machine and in inert atmosphere to obtain blanks and loading the blanks into charging boxes; (2) opening the two isolating valves connected with each other; wherein after a first rolling wheel transmission in the second conveying vehicle transfers the charging tray into the first chamber of the glove box, the two isolating valves are closed, and the second conveying vehicle leaves; (3) locking two matching flanges of the two isolating valves tightly; (4) locking matching flanges tightly; and (5) processing the blanks with heating and heat preservation according to a preset process curve; wherein the blanks are sintered at a highest temperature of 1200° C.

Abstract translation: 一种柔性烧结稀土永磁合金的方法包括：（1）称量稀土永磁合金细粉，将细粉加载在模具中，并在压机和惰性气氛中定向压实细粉，得到坯料和 将坯料装入充电箱; （2）打开两个彼此连接的隔离阀; 其特征在于，在所述第二输送车辆中的第一滚轮传动后，将所述充电托盘输送到所述手套箱的第一室内，所述两个隔离阀关闭，所述第二输送车辆离开; （3）紧紧地锁住两个隔离阀的两个匹配法兰; （4）紧紧配合法兰; （5）按照预设的工艺曲线加热保温坯料; 其中坯料在1200℃的最高温度下烧结

公开(公告)号：US09863021B2

公开(公告)日：2018-01-09

申请号：US14708997

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

IPC: H01F1/057 ,  B22F1/00 ,  C22C38/00 ,  C22C38/16 ,  C22C38/14 ,  C22C38/12 ,  C22C38/10 ,  C22C38/06 ,  C22C1/00 ,  C22C1/02 ,  C22C24/00 ,  C22C33/02 ,  H01F41/02

CPC classification number: C22C38/002 ,  B22F1/0055 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/002 ,  C22C1/02 ,  C22C24/00 ,  C22C33/02 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0273 ,  B22F3/02 ,  B22F2201/02 ,  B22F2202/05 ,  B22F9/08 ,  B22F2009/044 ,  C22C1/1084 ,  B22F3/10

Abstract: A NdFeB rare earth permanent magnet with composite main phase and a manufacturing method thereof are provided. In the composite main phase, a PR2(Fe1-x-yCoxAly)14B main phase is the core, ZR2(Fe1-w-nCowAln)14B main phase surrounds a periphery of the PR2(Fe1-x-yCoxAly)14B main phase, and no grain boundary phase exists between ZR2(Fe1-w-nCowAln)14B main phase and the PR2(Fe1-x-yCoxAly)14B main phase, wherein ZR represents a group of rare earth elements in which a content of heavy rare earth is higher than an average content of heavy rare earth in the composite main phase, PR represents a group of rare earth elements in which a content of heavy rare earth is lower than an average content of heavy rare earth in the composite main phase. The manufacturing method includes steps of LR—Fe—B-Ma alloy melting, HR—Fe—B-Mb alloy melting, alloy hydrogen decrepitating, metal oxide micro-powder surface absorbing and powdering, magnetic field pressing, sintering and ageing.

公开(公告)号：US09643249B2

公开(公告)日：2017-05-09

申请号：US14708497

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

IPC: B22F3/00 ,  B22F5/00 ,  H01F41/02 ,  H01F1/053 ,  H01F1/057 ,  B22F9/04 ,  B22F3/24 ,  C22C33/02 ,  F27B9/02

CPC classification number: B22F3/003 ,  B22F3/24 ,  B22F9/04 ,  B22F2003/248 ,  B22F2998/10 ,  C22C33/0278 ,  C22C2202/02 ,  F27B9/028 ,  H01F1/0577 ,  H01F41/0273 ,  B22F3/04 ,  B22F3/1017

Abstract: A method for sintering NdFeB rare earth permanent magnet includes steps of: providing a continuous vacuum sintering furnace to sinter; loading a sintering box with compacted magnet blocks onto a loading frame; while driving by a transmission apparatus, sending the loading frame orderly through a preparation chamber, a pre-heating and degreasing chamber, a first degassing chamber, a second degassing chamber, a pre-sintering chamber, a sintering chamber, an aging chamber and a cooling chamber of the continuous vacuum sintering furnace, respectively for pre-heating to remove organic impurities, and further for heating to dehydrogenate and degas, pre-sintering, sintering, aging and cooling. A continuous vacuum sintering apparatus is also provided.

公开(公告)号：US09620269B2

公开(公告)日：2017-04-11

申请号：US14708460

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

IPC: H01F41/02 ,  B22F5/00 ,  H01F1/057 ,  B22F9/02 ,  C21D3/06 ,  C22C38/00 ,  C22C38/10 ,  C22C38/16 ,  C22C38/32

CPC classification number: H01F1/0577 ,  B22F9/023 ,  B22F2998/10 ,  B22F2999/00 ,  C21D3/06 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C38/16 ,  C22C38/32 ,  H01F1/0573 ,  H01F41/0273 ,  B22F1/0055 ,  B22F9/04 ,  B22F2009/044 ,  B22F3/02 ,  B22F3/1021 ,  B22F3/1028 ,  B22F2003/247 ,  B22F2201/20 ,  B22F2201/11

Abstract: A method and an equipment for processing NdFeB rare earth permanent magnetic alloy with a hydrogen pulverization are provided. The method includes steps of: providing a continuous hydrogen pulverization equipment; while driving by a transmission device, passing a charging box loaded with rare earth permanent magnetic alloy flakes orderly through a hydrogen absorption chamber, having a temperature of 50-350° C. for absorbing hydrogen, a heating and dehydrogenating chamber, having a temperature of 600-900° C. for dehydrogenating, and a cooling chamber of the continuous hydrogen pulverization equipment; receiving the charging box by a discharging chamber through a discharging valve; pouring out the alloy flakes after the hydrogen pulverization into a storage tank at a lower part of the discharging chamber; sealing up the storage tank under a protection of nitrogen; and, moving the charging box out through a discharging door of the discharging chamber and re-loading, for repeating the previous steps.

公开(公告)号：US09543063B2

公开(公告)日：2017-01-10

申请号：US14075801

申请日：2013-11-08

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD

Inventor： Xiaodong Chen ,  Baoyu Sun

IPC: H01F1/053 ,  H01F1/057 ,  H01F1/055

CPC classification number: H01F1/0573 ,  H01F1/0553

Abstract: A continuous hydrogen pulverization method of a rare earth permanent magnetic alloy includes: providing a hydrogen adsorption room, a heating dehydrogenation room and a cooling room in series, applying hydrogen adsorption, heating dehydrogenation and cooling on a rare earth permanent magnetic alloy in the production device at the same time, wherein collecting and storing under an inert protection atmosphere can also be provided. Continuous production is provided under vacuum and the inert protection atmosphere in such a manner that an oxygen content of the pulverized powder is low and a proportion of single crystal in the powder is high.

Abstract translation: 稀土永磁合金的连续氢粉碎方法包括：提供氢吸附室，加热脱氢室和串联的冷却室，在制造装置中对稀土永磁合金进行氢吸附，加热脱氢和冷却 同时，还可以提供在惰性保护气氛下的收集和储存。 在真空和惰性保护气氛下连续生产粉碎粉末的氧含量低，粉末中单晶的比例高。

公开(公告)号：US20150248954A1

公开(公告)日：2015-09-03

申请号：US14708997

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

IPC: H01F1/057 ,  H01F1/053 ,  H01F41/02 ,  C22C38/00 ,  C22C38/14 ,  C22C38/12 ,  C22C38/10 ,  C22C38/06 ,  H01F1/055 ,  C22C38/16

CPC classification number: C22C38/002 ,  B22F1/0055 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/002 ,  C22C1/02 ,  C22C24/00 ,  C22C33/02 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/0273 ,  B22F3/02 ,  B22F2201/02 ,  B22F2202/05 ,  B22F9/08 ,  B22F2009/044 ,  C22C1/1084 ,  B22F3/10

Abstract: A NdFeB rare earth permanent magnet with composite main phase and a manufacturing method thereof are provided. In the composite main phase, a PR2(Fe1-x-yCoxAly)14B main phase is the core, ZR2(Fe1-w-nCowAln)14B main phase surrounds a periphery of the PR2(Fe1-x-yCoxAly)14B main phase, and no grain boundary phase exists between ZR2(Fe1-w-nCowAln)14B main phase and the PR2(Fe1-x-yCoxAly)14B main phase, wherein ZR represents a group of rare earth elements in which a content of heavy rare earth is higher than an average content of heavy rare earth in the composite main phase, PR represents a group of rare earth elements in which a content of heavy rare earth is lower than an average content of heavy rare earth in the composite main phase. The manufacturing method includes steps of LR—Fe—B-Ma alloy melting, HR—Fe—B-Mb alloy melting, alloy hydrogen decrepitating, metal oxide micro-powder surface absorbing and powdering, magnetic field pressing, sintering and ageing.

Abstract translation: 提供了具有复合主相的NdFeB稀土永磁体及其制造方法。 在复合主相中，PR2（Fe1-x-yCoxAly）14B主相为核，ZR2（Fe1-w-nCowAln）14B主相围绕PR2（Fe1-x-yCoxAly）14B主相的周围， 在ZR2（Fe1-w-nCowAln）14B主相和PR2（Fe1-x-yCoxAly）14B主相之间不存在晶界相，其中ZR表示重稀土含量的一组稀土元素 高于复合主相中重稀土的平均含量，PR表示复合主相中重稀土含量低于重稀土元素含量的一组稀土元素。 制造方法包括LR-Fe-B-Ma合金熔融，HR-Fe-B-Mb合金熔解，合金氢化裂解，金属氧化物微粉末表面吸收和粉化，磁场压制，烧结和老化的步骤。

公开(公告)号：US10658094B2

公开(公告)日：2020-05-19

申请号：US15389568

申请日：2016-12-23

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun ,  Yongli Duan

IPC: H01F1/057 ,  H01F41/02 ,  B22F3/16 ,  B22F9/04 ,  C22C38/16 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C22C38/00 ,  C22C33/04 ,  B22F3/10 ,  C21D8/12 ,  C21D9/00

Abstract: A NdFeB magnet containing cerium and a manufacturing method thereof are provided. The manufacturing method includes steps of: refining a part of raw materials pure iron, ferro-boron, and rare earth fluoride in a crucible, adding a rest of the raw materials into the crucible and refining, casting a refined solution to a surface of a water-cooled rotation roller through a tundish and forming alloy flakes, processing the alloy flakes containing at least two different compositions with hydrogen decrepitation, milling powders, magnetic field pressing, vacuum presintering, machining and sintering, and obtaining the NdFeB magnet containing cerium. The NdFeB magnet containing cerium has a density of 7.5-7.7 g/cm3 and an average particle size of 3-7 μm; comprises a main phase and a grain boundary phase distributed around the main phase. A composite phase containing Tb is provided between the main phase and the grain boundary phase.