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Method and apparatus for sintering NdFeB rare earth permanent magnet 发明授权

2023-05-03 3080 1132K 0

专利信息

申请日期 2025-07-12 申请号 US14708497
公开(公告)号 US9643249B2 公开(公告)日 2017-05-09
公开国别 US 申请人省市代码 全国
申请人 SHENYANG GENERAL MAGNETIC CO LTD
简介 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.


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