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1. 发明申请

US20110037549A1 RARE EARTH METAL-BASED PERMANENT MAGNET 有权
标题翻译：稀土金属基永久磁铁
公开(公告)号：US20110037549A1
公开(公告)日：2011-02-17
申请号：US12990341
申请日：2008-05-14
申请人： Yukimitsu Miyao , Tsutomu Nakamura
发明人： Yukimitsu Miyao , Tsutomu Nakamura
IPC分类号： H01F7/02
CPC分类号： H01F1/0577 , C22C9/00 , C22C13/00 , H01F41/026 , Y10T428/32 , Y10T428/325
摘要： An objective of the present invention is to provide a rare earth metal-based permanent magnet with improved adhesion properties. A rare earth metal-based permanent magnet of the present invention as a means for achieving the objective has a laminated plating film, and is characterized in that the plating film comprises as an outermost surface layer a SnCu alloy plating film having a film thickness in a range from 0.1 μm to 2 μm, the composition of the SnCu alloy plating film is 35 mass % or more but less than 55 mass % of Sn and the rest being Cu, and a base plating film having two or more layers including at least a Ni plating film and a Cu plating film which are formed as the lower layer under the SnCu alloy plating film, and among the base plating film, the Ni plating film is located just below the SnCu alloy plating film. A joined structure fabricated using the rare earth metal-based permanent magnet of the present invention exhibits favorable initial adhesion strength when combined with a silicone-based adhesive, and is less deteriorated in adhesion strength even after a moisture resistance test.
摘要翻译：本发明的目的是提供一种具有改进的粘合性能的稀土金属基永磁体。本发明的稀土金属类永磁体作为实现目的的手段具有叠层电镀膜，其特征在于，所述镀膜包含作为最外表面层的SnCu合金镀膜，膜厚度为在0.1μm〜2μm的范围内，SnCu合金镀膜的成分为Sn的35质量％以上且小于55质量％，其余为Cu，并且具有两层以上的基底镀膜至少含有 Ni镀覆膜和Cu电镀膜，在SnCu合金镀膜之下形成为下层，并且在底镀膜中，Ni镀膜位于SnCu合金镀膜的正下方。使用本发明的稀土类金属类永磁体制造的接合结构，与硅酮类粘合剂组合时，表现出良好的初期粘合强度，即使在耐湿试验之后，粘合强度也劣化。

2. 发明授权

US09287027B2 Rare earth metal-based permanent magnet 有权
标题翻译：稀土金属永磁体
公开(公告)号：US09287027B2
公开(公告)日：2016-03-15
申请号：US12990341
申请日：2008-05-14
申请人： Yukimitsu Miyao , Tsutomu Nakamura
发明人： Yukimitsu Miyao , Tsutomu Nakamura
IPC分类号： H01F1/057 , B32B15/04 , C22C9/00 , C22C13/00 , H01F41/02
CPC分类号： H01F1/0577 , C22C9/00 , C22C13/00 , H01F41/026 , Y10T428/32 , Y10T428/325
摘要： An objective of the present invention is to provide a rare earth metal-based permanent magnet with improved adhesion properties. A rare earth metal-based permanent magnet of the present invention as a means for achieving the objective has a laminated plating film, and is characterized in that the plating film comprises as an outermost surface layer a SnCu alloy plating film having a film thickness in a range from 0.1 μm to 2 μm, the composition of the SnCu alloy plating film is 35 mass % or more but less than 55 mass % of Sn and the rest being Cu, and a base plating film having two or more layers including at least a Ni plating film and a Cu plating film which are formed as the lower layer under the SnCu alloy plating film, and among the base plating film, the Ni plating film is located just below the SnCu alloy plating film. A joined structure fabricated using the rare earth metal-based permanent magnet of the present invention exhibits favorable initial adhesion strength when combined with a silicone-based adhesive, and is less deteriorated in adhesion strength even after a moisture resistance test.
摘要翻译：本发明的目的是提供一种具有改进的粘合性能的稀土金属基永磁体。本发明的稀土金属类永磁体作为实现目的的手段具有叠层电镀膜，其特征在于，所述镀膜包含作为最外表面层的SnCu合金镀膜，膜厚度为在0.1μm〜2μm的范围内，SnCu合金镀膜的成分为Sn的35质量％以上且小于55质量％，其余为Cu，并且具有两层以上的基底镀膜至少含有 Ni镀覆膜和Cu电镀膜，在SnCu合金镀膜之下形成为下层，并且在底镀膜中，Ni镀膜位于SnCu合金镀膜的正下方。使用本发明的稀土类金属类永磁体制造的接合结构，与硅酮类粘合剂组合时，表现出良好的初期粘合强度，即使在耐湿试验之后，粘合强度也劣化。

3. 发明申请

US20080118747A1 Process for Producing Permanent Magnet for Use in Automotive Ipm Motor 审中-公开
标题翻译：制造用于汽车Ipm电机的永久磁铁的工艺
公开(公告)号：US20080118747A1
公开(公告)日：2008-05-22
申请号：US11791658
申请日：2005-11-21
申请人： Toshiyasu Komatsu , Yasutaka Shintani , Kazunari Takahashi , Akira Kabasawa , Hidenori Okada , Yukimitsu Miyao , Yuji Kaneko
发明人： Toshiyasu Komatsu , Yasutaka Shintani , Kazunari Takahashi , Akira Kabasawa , Hidenori Okada , Yukimitsu Miyao , Yuji Kaneko
IPC分类号： G11B5/64 , C23C28/02 , H02K15/03
CPC分类号： C25D5/12 , C23C28/021 , C23C28/023 , C25D7/001 , H01F1/0577 , H01F41/026 , H02K1/276 , H02K1/30 , H02K15/03 , Y10T428/265
摘要： [Problem] To provide a process for producing a permanent magnet for use in an automotive IPM motor, which excels in all of corrosion resistance, abrasion resistance, and impact resistance.[Means for Resolution] The production process characterized in that it comprises forming on the surface of an R—Fe—B based permanent magnet a 3 to 15 μm thick Ni film as a first layer by electroplating method, followed by a 3 to 15 μm thick Cu or Sn film as a second layer by electroplating method, and a 4 to 7 μm thick Ni—P alloy film as a third layer by electroless plating method, provided that the third layer has a Vicker's hardness of 2.5 to 4.5 with respect to the Vicker's hardness of the Cu or Sn electroplated film provided as the second layer taken as 1.
摘要翻译： [问题]提供一种制造用于汽车IPM电动机的永磁体的方法，其具有优异的耐腐蚀性，耐磨性和耐冲击性。 [解决方法]制造方法的特征在于，其包括在作为第一层的3〜15μm厚的Ni膜的R-Fe-B系永久磁铁的表面上通过电镀法形成，然后在3〜15μm 通过电镀法将厚Cu或Sn膜作为第二层，通过化学镀法将第4层厚度为4〜7μm的Ni-P合金膜作为第3层，第3层的维氏硬度相对于作为第二层提供的Cu或Sn电镀膜的维氏硬度取为1。

4. 发明授权

US4959273A Corrosion-resistant permanent magnet and method for preparing the same 失效
标题翻译：耐腐蚀永磁体及其制备方法
公开(公告)号：US4959273A
公开(公告)日：1990-09-25
申请号：US408243
申请日：1989-09-18
申请人： Atsushi Hamamura , Takaki Hamada , Kouki Tokuhara , Yukimitsu Miyao , Tomoyuki Imai , Nanao Horiishi
发明人： Atsushi Hamamura , Takaki Hamada , Kouki Tokuhara , Yukimitsu Miyao , Tomoyuki Imai , Nanao Horiishi
IPC分类号： C21D6/00 , C22C38/00 , C23C28/02 , C23C30/00 , C25D7/00 , H01F1/053 , H01F1/057 , H01F7/02 , H01F41/02
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 exhibiting deterioration of not more than 5 % from the initial magnetic properties after being tested for 500 hours under the conditions of a temperature of 80.degree. C. and a relative humidity of 90 % 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.The noble metal layer is 1-10 nm thick. The electroless plating layer is no more than 10 .mu.m and the electrolytic plating layer 5-60 .mu.m thick.

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