公开(公告)号：US20150243434A1

公开(公告)日：2015-08-27

申请号：US14708497

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

IPC: H01F41/02 ,  H01F1/053 ,  H01F1/057 ,  B22F9/04 ,  B22F3/24 ,  B22F3/00 ,  B22F5/00 ,  H01F1/08 ,  B22F3/12

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.

Abstract translation: 一种烧结NdFeB稀土永磁体的方法包括以下步骤：提供连续的真空烧结炉进行烧结; 将具有压实磁体块的烧结盒装载到装载框架上; 在通过传动装置驱动的同时，通过准备室，预热和脱脂室，第一脱气室，第二脱气室，预烧结室，烧结室，老化室和 连续真空烧结炉的冷却室，分别预热除去有机杂质，进一步加热脱氢脱气，预烧结，烧结，老化和冷却。 还提供连续的真空烧结装置。

公开(公告)号：US20150243415A1

公开(公告)日：2015-08-27

申请号：US14709021

申请日：2015-05-11

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun

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

CPC classification number: C22C38/005 ,  B22F2009/044 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/04 ,  C22C33/06 ,  C22C38/002 ,  C22C38/06 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  H01F1/0577 ,  H01F41/0266 ,  H01F41/0293 ,  B22F3/02 ,  B22F3/1007 ,  B22F2202/05 ,  B22F2201/02 ,  B22F2201/20 ,  B22F2201/11

Abstract: A method for manufacturing a NdFeB rare earth permanent magnet containing Ce whose raw material includes a Ce-LR-Fe—B-Ma alloy, a Ce-HR-Fe—B-Mb alloy, and metallic oxide micro-powder; wherein the LR at least includes Nd and Pr, and the LR does not include Ce; wherein the HR at least includes Dy or Tb, and the HR does not include Ce; wherein the Ma is selected from a group consisting of Al, Co, Nb, Ga, Zr and Cu; wherein the Mb is selected from a group consisting of Al, Co, Nb, Ga, Zr, Cu and Mo; includes steps of: melting the Ce-LR-Fe—B-Ma alloy, melting the Ce-HR-Fe—B-Mb alloy, providing hydrogen decrepitating, adsorbing with the metallic oxide micro-powder and powdering, providing magnetic field pressing, sintering and ageing, for forming a NdFeB rare earth permanent magnet.

Abstract translation: 含有Ce-LR-Fe-B-Ma合金，Ce-HR-Fe-B-Mb合金和金属氧化物微粉末的Ce的NdFeB稀土永磁体的制造方法， 其中LR至少包括Nd和Pr，LR不包括Ce; 其中所述HR至少包括Dy或Tb，并且所述HR不包括Ce; 其中所述Ma选自Al，Co，Nb，Ga，Zr和Cu; 其中Mb选自Al，Co，Nb，Ga，Zr，Cu和Mo; 包括以下步骤：熔化Ce-LR-Fe-B-Ma合金，熔化Ce-HR-Fe-B-Mb合金，提供氢气破裂，用金属氧化物微粉末吸附和粉化，提供磁场压制， 烧结和老化，用于形成NdFeB稀土永磁体。