公开(公告)号：US09938625B2

公开(公告)日：2018-04-10

申请号：US14662235

申请日：2015-03-18

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun ,  Xiaodong Chen

IPC: C23C28/00 ,  C23C28/02 ,  C23C14/35 ,  B22F3/12 ,  B22F3/04 ,  B22F7/08 ,  B22F7/00 ,  B22F9/08 ,  C23C14/08 ,  C23C14/02 ,  C23C14/16 ,  C23C14/22 ,  B22F3/24 ,  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.

公开(公告)号：US20150243417A1

公开(公告)日：2015-08-27

申请号：US14708460

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

IPC: H01F1/057 ,  B22F3/12 ,  B22F3/24 ,  C22C38/00 ,  B22F9/04 ,  B22F9/02 ,  C21D3/06 ,  H01F41/02 ,  B22F5/00

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 dehydrogenizing 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.

Abstract translation: 提供了一种用于处理氢粉碎的NdFeB稀土永磁合金的方法和设备。 该方法包括以下步骤：提供连续氢气粉碎设备; 当通过传动装置驱动时，将装有稀土永磁合金的充电箱顺序地通过氢吸收室，温度为50-350℃，用于吸收氢气，加热和脱氢室，其温度为 600-900℃进行脱氢，连续氢粉碎设备的冷却室; 通过排放阀通过排放室接收充电箱; 将氢粉碎后的合金薄片倒入放电室下部的储罐中; 在氮气保护下密封储罐; 并且通过排放室的排放门将充电箱移出并重新加载，以重复前述步骤。

公开(公告)号：US20140127072A1

公开(公告)日：2014-05-08

申请号：US14075732

申请日：2013-11-08

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD

Inventor： Xiaodong Chen ,  Baoyu Sun

IPC: H01F41/02

CPC classification number: H01F1/0577

Abstract: A continuous sintering method for rare earth permanent magnetic alloy comprises: connecting a preparation chamber, a glove chamber and a sealed transmission chamber, a sealed chamber, a charging chamber, a preheating chamber, a heating and de-airing chamber, a sintering chamber and a cooling chamber one after another. A press formed blank of rare earth permanent magnetic alloy powder is transmitted under oxygen free condition, and processed with heating and de-airing, sintering and cooling. The preparation chamber, the glove chamber and the sealed transmission chamber are transmitted by bottom rollers, transmissions of other chambers are provided on a top portion of each chamber, and conveyed by roller rails. The rollers of the charging rack are suspended on rails of the transmissions. The drawer model charging rack is capable of loading multiple charging box.

Abstract translation: 稀土永磁合金的连续烧结方法包括：将准备室，手套室和密封的传输室连接，密封室，充电室，预热室，加热和除气室，烧结室和 一个冷却室一个接一个。 稀土永磁合金粉末压坯成型无氧条件下传输，加热，脱气，烧结和冷却处理。 准备室，手套室和密封的传输室由底辊传递，其他室的传输设置在每个室的顶部，并由辊轨传送。 充电架的滚轮悬挂在变速箱的导轨上。 抽屉式充电架能够装载多个充电箱。

公开(公告)号：US20140123811A1

公开(公告)日：2014-05-08

申请号：US14075801

申请日：2013-11-08

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD

Inventor： Xiaodong Chen ,  Baoyu Sun

IPC: H01F41/00

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：EP2851144B1

公开(公告)日：2018-01-17

申请号：EP13853302.1

申请日：2013-02-05

Applicant: Shenyang General Magnetic Co., Ltd

Inventor： SUN, Baoyu ,  CHEN, Xiaodong

IPC: B22F3/10 ,  H01F1/057 ,  H01F1/08 ,  H01F41/02

CPC classification number: H01F41/0266 ,  C22C2202/00 ,  H01F1/086

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) after air between the second conveying vehicle and the first isolating valve of the glove box is replaced with inert gas, 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) after a first conveying vehicle is coupled with a third isolating valve at an end of the second chamber, locking two matching flanges of the two isolating valves tightly; (4) after the first conveying vehicle is coupled with an isolating valve of a sintering furnace, locking matching flanges tightly; and (5) after the sintering furnace is evacuated to a vacuum degree more than 50Pa, or the sintering furnace is filled with protective gas, 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. The present invention significantly increases performance of magnets.

公开(公告)号：EP2944403A1

公开(公告)日：2015-11-18

申请号：EP15000390.3

申请日：2015-02-10

Applicant: Shenyang General Magnetic Co., Ltd

Inventor： Sun, Baoyu

IPC: B22F9/04 ,  B02C19/06 ,  B02C23/12 ,  H01F1/057 ,  C22C1/04 ,  H01F41/02

Abstract: A method of powdering NdFeB rare earth permanent magnetic alloy includes: adding mixed powder after a hydrogen pulverization into a grinder; grinding the powder with a high-speed gas flow ejected by a nozzle; sending the ground powder into a centrifugal sorting wheel with the gas flow; collecting, by a cyclone collector, fine power selected by the sorting wheel; collecting, by a post cyclone collector, the fine powder discharged out with the gas flow from a gas discharging pipe of the cyclone collector; introducing, by a depositing device, the fine powder collected by the cyclone collector and by the post cyclone collector into a depositing tank; compressing, by a compressor, and cooling, by a cooler, the gas discharged by the post cyclone collector; and then sending the gas into a gas inlet of the nozzle for recycling. A device thereof is also provided.

Abstract translation: 粉末化钕铁硼稀土永磁合金的方法包括：将氢粉碎后的混合粉末加入研磨机中; 用喷嘴喷射的高速气流研磨粉末; 将粉碎的粉末送入带有气流的离心分选轮; 由旋风收集器收集由分选轮选择的精细动力; 通过后旋风收集器收集从旋风收集器的气体放出管排出的气流的细粉末; 通过沉积装置将由旋风收集器收集的细粉末和后旋风收集器引入沉积槽; 通过压缩机压缩并由冷却器冷却由后旋风收集器排出的气体; 然后将气体送入喷嘴的气体入口进行再循环。 还提供了其装置。

公开(公告)号：EP2851144A1

公开(公告)日：2015-03-25

申请号：EP13853302.1

申请日：2013-02-05

Applicant: Shenyang General Magnetic Co., Ltd.

Inventor： SUN, Baoyu ,  CHEN, Xiaodong

IPC: B22F3/10 ,  H01F1/057 ,  H01F1/08

CPC classification number: H01F41/0266 ,  C22C2202/00 ,  H01F1/086

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) after air between the second conveying vehicle and the first isolating valve of the glove box is replaced with inert gas, 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) after a first conveying vehicle is coupled with a third isolating valve at an end of the second chamber, locking two matching flanges of the two isolating valves tightly; (4) after the first conveying vehicle is coupled with an isolating valve of a sintering furnace, locking matching flanges tightly; and (5) after the sintering furnace is evacuated to a vacuum degree more than 50Pa, or the sintering furnace is filled with protective gas, 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. The present invention significantly increases performance of magnets.

Abstract translation: 一种用于灵活烧结稀土永磁合金的方法包括：（1）称量稀土永磁合金的细粉末，该细粉末装入模具，并orientedly在一个冲压机和在惰性气氛压实细粉以获得坯料和 装载坯料进入充电箱; （2）之后的第二输送车辆与手套箱的第一隔离阀之间的空气置换为惰性气体，打开海誓山盟连接的两个隔离阀; worin后在第二输送车辆上的第一滚轮变速器传送充电托盘放入手套箱中的第一腔室，这两个隔离阀被关闭，并且第二输送车辆离开; （3）一个第一输送车辆在联接后用第三隔离阀在所述第二腔室的端部，锁定紧紧两个隔离阀的两个匹配法兰。 （4）第一输送车辆以分离的烧结炉的阀，紧紧锁定匹配凸缘加上后; 和（5）之后的烧结炉抽真空至真空度超过50Pa的，或烧结炉充满保护气体;处理与加热和保温gemäß坯料通过预设的进程曲线; worin坯体在1200℃的最高温度下烧结 本发明显着地提高磁体的性能。

公开(公告)号：EP2851144A4

公开(公告)日：2016-01-27

申请号：EP13853302

申请日：2013-02-05

Applicant: SHENYANG GENERAL MAGNETIC CO LTD

Inventor： SUN BAOYU ,  CHEN XIAODONG

IPC: B22F3/10 ,  H01F1/057 ,  H01F1/08 ,  H01F41/02

CPC classification number: H01F41/0266 ,  C22C2202/00 ,  H01F1/086

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) after air between the second conveying vehicle and the first isolating valve of the glove box is replaced with inert gas, 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) after a first conveying vehicle is coupled with a third isolating valve at an end of the second chamber, locking two matching flanges of the two isolating valves tightly; (4) after the first conveying vehicle is coupled with an isolating valve of a sintering furnace, locking matching flanges tightly; and (5) after the sintering furnace is evacuated to a vacuum degree more than 50Pa, or the sintering furnace is filled with protective gas, 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. The present invention significantly increases performance of magnets.

公开(公告)号：EP2944403B1

公开(公告)日：2020-05-06

申请号：EP15000390.3

申请日：2015-02-10

Applicant: Shenyang General Magnetic Co., Ltd

Inventor： Sun, Baoyu

IPC: B22F9/04 ,  B02C19/06 ,  B02C23/12 ,  H01F1/057 ,  C22C1/04 ,  H01F41/02