-
公开(公告)号：EP0361308B1
公开(公告)日：1993-04-14
申请号：EP89117425.2
申请日：1989-09-20
发明人： Hamamura, Atsushi Sumitomo Special Metals Co. Ltd. , Hamada, Takaki Sumitomo Special Metals Co. Ltd. , Tokuhara, Kouki Sumitomo Special Metals Co. Ltd. , Miyao, Yukimitsu Sumitomo Special Metals Co. Ltd. , Imai, Tomoyuki , Horiishi, Nanao
CPC分类号： H01F1/0577 , H01F41/026 , Y10S428/90 , Y10T428/12028 , Y10T428/12063 , Y10T428/1209
-
2.发明公开Corrosion-resistant permanent magnet and method for preparing the same 失效Korrosionsfester Dauermagnet und Herstellungsverfahren。
公开(公告)号：EP0361308A1
公开(公告)日：1990-04-04
申请号：EP89117425.2
申请日：1989-09-20
发明人： Hamamura, Atsushi Sumitomo Special Metals Co. Ltd. , Hamada, Takaki Sumitomo Special Metals Co. Ltd. , Tokuhara, Kouki Sumitomo Special Metals Co. Ltd. , Miyao, Yukimitsu Sumitomo Special Metals Co. Ltd. , Imai, Tomoyuki , Horiishi, Nanao
CPC分类号： H01F1/0577 , H01F41/026 , Y10S428/90 , Y10T428/12028 , Y10T428/12063 , Y10T428/1209
摘要： A corrosion-resistant R-Fe-B type sintered permanent magnet is produced by:
causing at least one colloidal noble metal selected from the group consisting of Pd, Ag, Pt and Au to be adsorbed in a colloidal state or forming a thin layer thereof through vapor deposition on the surface of the sintered body; applying at least one base metal selected from the group consisting of Ni, Cu, Sn and Co containing P and/or B by electroless plating; and further applying at least one base metal selected from the same group by electrolytic plating.
The noble metal layer is 1 - 10 nm thick. The electroless plating layer is no more than 10 µm and the electrolytic plating layer is 5 - 60 µm thick.摘要翻译： 耐腐蚀的R-Fe-B型烧结永磁体是通过使至少一种选自Pd，Ag，Pt和Au的胶态贵金属以胶体状态吸附或形成薄层 通过气相沉积在烧结体的表面上; 通过无电解电镀施加选自由Ni，Cu，Sn和含有P和/或B的Co组成的组中的至少一种母体金属; 并且通过电解电镀进一步施加选自相同组中的至少一种母体金属。 贵金属层的厚度为1-10nm。 化学镀层为10μm以下，电镀层为5〜60μm厚。
-
搜索结果
2 条记录 (耗时 0.01 秒)
