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公开(公告)号：US08641833B2
公开(公告)日：2014-02-04
申请号：US13002571
申请日：2009-06-30
申请人： Toshinobu Niinae , Koshi Yoshimura , Koji Kamiyama
发明人： Toshinobu Niinae , Koshi Yoshimura , Koji Kamiyama
CPC分类号： H01F41/026 , B22F3/24 , B22F2003/241 , B22F2207/01 , C22C33/0278 , C22C38/00 , C22C2202/02 , C23C22/34 , H01F1/0577 , H01F7/0221 , Y10T428/12465
摘要： An object of the present invention is to provide an R—Fe—B based sintered magnet having on a surface thereof a chemical conversion film with higher corrosion resistance than a conventional chemical conversion film such as a phosphate film, and a method for producing the same. The corrosion-resistant magnet of the present invention as a means for achieving the object is characterized by comprising a chemical conversion film containing at least Zr, Nd, fluorine, and oxygen as constituent elements and not containing phosphorus directly on a surface of an R—Fe—B based sintered magnet, wherein R is a rare-earth element including at least Nd.
摘要翻译： 本发明的目的是提供一种R-Fe-B系烧结磁体，其表面上具有比常规的磷酸盐膜化学转化膜更高的耐腐蚀性的化学转化膜及其制造方法 。 作为实现该目的的手段的本发明的耐腐蚀磁体的特征在于，包括至少含有Zr，Nd，氟和氧作为构成元素的化学转化膜，并且直接在R- Fe-B系烧结磁体，其中R是至少包括Nd的稀土元素。
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公开(公告)号：US20110186181A1
公开(公告)日：2011-08-04
申请号：US13002571
申请日：2009-06-30
申请人： Toshinobu Niinae , Koshi Yoshimura , Koji Kamiyama
发明人： Toshinobu Niinae , Koshi Yoshimura , Koji Kamiyama
CPC分类号： H01F41/026 , B22F3/24 , B22F2003/241 , B22F2207/01 , C22C33/0278 , C22C38/00 , C22C2202/02 , C23C22/34 , H01F1/0577 , H01F7/0221 , Y10T428/12465
摘要： An object of the present invention is to provide an R—Fe—B based sintered magnet having on a surface thereof a chemical conversion film with higher corrosion resistance than a conventional chemical conversion film such as a phosphate film, and a method for producing the same. The corrosion-resistant magnet of the present invention as a means for achieving the object is characterized by comprising a chemical conversion film containing at least Zr, Nd, fluorine, and oxygen as constituent elements and not containing phosphorus directly on a surface of an R—Fe—B based sintered magnet, wherein R is a rare-earth element including at least Nd.
摘要翻译： 本发明的目的是提供一种R-Fe-B系烧结磁体，其表面上具有比常规的磷酸盐膜化学转化膜更高的耐腐蚀性的化学转化膜及其制造方法 。 作为实现该目的的手段的本发明的耐腐蚀磁体的特征在于，包括至少含有Zr，Nd，氟和氧作为构成元素的化学转化膜，并且直接在R- Fe-B系烧结磁体，其中R是至少包括Nd的稀土元素。
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公开(公告)号：US20120299676A1
公开(公告)日：2012-11-29
申请号：US13516798
申请日：2010-12-28
申请人： Toshinobu Niinae , Koshi Yoshimura , Koji Kamiyama
发明人： Toshinobu Niinae , Koshi Yoshimura , Koji Kamiyama
CPC分类号： C23C22/34 , B22F9/04 , B22F2003/242 , B22F2009/042 , B22F2009/044 , B22F2998/10 , H01F1/0577 , H01F41/026 , B22F1/0055 , B22F9/023 , B22F3/087 , B22F3/101
摘要： An object of the present invention is to provide an R—Fe—B based sintered magnet having on a surface thereof a chemical conversion film with higher corrosion resistance than a conventional chemical conversion film such as a phosphate film, and a method for producing the same. The R—Fe—B based sintered magnet having a chemical conversion film on the surface thereof of the present invention as a means for achieving the object is characterized by comprising a chemical conversion film on a surface of an R—Fe—B based sintered magnet wherein R is a rare-earth element including at least Nd, the chemical conversion film having a laminate structure including at least an inner layer that contains R, fluorine, and oxygen as constituent elements and an outer layer that is amorphous and contains Zr, Fe, and oxygen as constituent elements, provided that no phosphorus is contained in the film.
摘要翻译： 本发明的目的是提供一种R-Fe-B系烧结磁体，其表面上具有比常规的磷酸盐膜化学转化膜更高的耐腐蚀性的化学转化膜及其制造方法 。 在本发明的表面具有化学转化膜的R-Fe-B系烧结磁体作为实现目的的手段的特征在于，在R-Fe-B系烧结磁体的表面上包含化学转化膜 其中R是至少包括Nd的稀土元素，化学转化膜具有至少包含含有R，氟和氧的内层作为构成元素的层叠结构，以及非晶态并含有Zr，Fe ，氧作为构成元素，条件是膜中不含磷。
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4.发明申请METHOD FOR PRODUCING RARE EARTH METAL-BASED PERMANENT MAGNET HAVING COPPER PLATING FILM ON SURFACE THEREOF 审中-公开在其表面生产铜镀膜的稀土金属永磁体的制造方法公开(公告)号：US20090035603A1
公开(公告)日：2009-02-05
申请号：US12278443
申请日：2007-02-07
申请人： Toshinobu Niinae
发明人： Toshinobu Niinae
CPC分类号： C25D3/38 , C25D7/001 , H01F1/0577 , H01F41/026 , Y10T428/12903
摘要： An objective of the invention is to provide a method for producing a rare earth metal-based permanent magnet having on the surface thereof a copper plating film by using a novel plating solution for use in a copper electroplating treatment capable of forming a copper plating film having excellent adhesiveness on the surface of a rare earth metal-based permanent magnet. As a means for solving the problem, the method for producing a rare earth metal-based permanent magnet having a copper plating film on the surface thereof according to the invention is characterized in that the production method comprises forming a copper plating film on the surface of the rare earth metal-based permanent magnet by applying a copper electroplating treatment using a plating solution whose pH is adjusted to a range from 9.0 to 11.5 and containing at least: (1) Cu2+ ions, (2) an organic phosphoric acid having two or more phosphorus atoms and/or a salt thereof, (3) gluconic acid and/or a salt thereof, (4) a sulfate and/or a nitrate, and (5) at least one organic carboxylic acid selected from oxalic acid, tartaric acid, citric acid, malonic acid, and malic acid, and/or a salt thereof; provided that a copper salt is excluded from the components (2) to (5).
摘要翻译： 本发明的目的是提供一种稀土类金属系永久磁铁的制造方法，该稀土类金属系永久磁铁的表面具有：通过使用能够形成镀铜膜的铜电镀处理用新型电镀液， 在稀土金属基永磁体的表面上具有良好的粘附性。 作为解决问题的手段，本发明的表面具有镀铜膜的稀土金属类永久磁铁的制造方法的特征在于，其制造方法包括在 稀土类金属类永久磁铁，通过使用pH调节为9.0〜11.5的电镀液进行铜电镀处理，至少含有：（1）Cu 2+离子，（2）有机磷酸，其具有两个或 更多的磷原子和/或其盐，（3）葡萄糖酸和/或其盐，（4）硫酸盐和/或硝酸盐，和（5）至少一种选自草酸，酒石酸 ，柠檬酸，丙二酸和苹果酸，和/或其盐; 条件是从组分（2）至（5）中排除铜盐。
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公开(公告)号：US07972491B2
公开(公告)日：2011-07-05
申请号：US11578404
申请日：2005-04-15
申请人： Toshinobu Niinae
发明人： Toshinobu Niinae
CPC分类号： C25D5/10 , C25D3/38 , C25D5/18 , H01F41/026 , Y10T428/31678
摘要： A simple and low cost method for imparting excellent hydrogen resistance to various types of articles such as a rare earth metal-based permanent magnet. A method for imparting hydrogen resistance to an article of the present invention is characterized by forming a metal coating film by pulse plating on the surface of the article.
摘要翻译： 一种用于赋予各种类型的诸如稀土金属基永磁体的物品优异的耐氢性的简单而低成本的方法。 赋予本发明制品耐氢性的方法的特征在于，通过在制品的表面上通过脉冲电镀形成金属涂膜。
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6.发明申请Method for Producing Rare Earth Metal-Based Permanent Magnet Having Copper Plating Film on the Surface Thereof 有权用于生产表面具有镀铜膜的稀土金属基永久磁铁的方法公开(公告)号：US20070269679A1
公开(公告)日：2007-11-22
申请号：US11659849
申请日：2005-08-09
申请人： Toshinobu Niinae
发明人： Toshinobu Niinae
CPC分类号： H01F41/026 , C25D3/38 , C25D7/001 , H01F1/0577 , Y10T428/12903
摘要： [Problems] To provide a method for producing a rare earth metal-based permanent magnet having on the surface thereof a copper plating film by using a novel plating solution for use in a copper electroplating treatment capable of forming a copper plating film having excellent adhesiveness on the surface of a rare earth metal-based permanent magnet. [Means for Resolution] The method for producing a rare earth metal-based permanent magnet having a copper plating film on the surface thereof according to the invention is characterized in that it comprises forming a copper plating film on the surface of a rare earth metal-based permanent magnet by means of a copper electroplating treatment by using a plating solution having its pH adjusted to a range from 9.0 to 11.5 and containing at least the following three components: (1) Cu2+ ions, (2) a chelating agent having a chelate stability constant of 10.0 or higher for Cu2+ ions, and (3) a chelating agent having a chelate stability constant of 16.0 or higher for Fe3+ ions (where, the aforementioned chelate stability constants are confined to conditions of pH 9.0 to 11.5).
摘要翻译： [问题]提供一种稀土类金属系永久磁铁的制造方法，该稀土类金属系永久磁铁的表面具有使用能够形成具有优异粘合性的镀铜膜的铜电镀处理用新型电镀液的铜镀膜 稀土金属基永磁体的表面。 [解决方法]根据本发明的在其表面上具有镀铜膜的稀土金属基永磁体的制造方法的特征在于，其包括在稀土金属基永久磁铁的表面上形成镀铜膜， 通过使用其pH调节至9.0〜11.5的范围的电镀液，并且至少包含以下三种成分，通过铜电镀处理进行铜基永久磁铁的处理：（1）Cu 2+离子， （2）螯合稳定常数为10.0以上的Cu 2+离子螯合剂，（3）Fe 3+螯合稳定性常数为16.0以上的螯合剂 +离子（其中上述螯合稳定常数限于pH 9.0〜11.5的条件）。
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7.发明授权公开(公告)号：US07785460B2
公开(公告)日：2010-08-31
申请号：US11659849
申请日：2005-08-09
申请人： Toshinobu Niinae
发明人： Toshinobu Niinae
CPC分类号： H01F41/026 , C25D3/38 , C25D7/001 , H01F1/0577 , Y10T428/12903
摘要： [Problems] To provide a method for producing a rare earth metal-based permanent magnet having on the surface thereof a copper plating film by using a novel plating solution for use in a copper electroplating treatment capable of forming a copper plating film having excellent adhesiveness on the surface of a rare earth metal-based permanent magnet.[Means for Resolution] The method for producing a rare earth metal-based permanent magnet having a copper plating film on the surface thereof according to the invention is characterized in that it comprises forming a copper plating film on the surface of a rare earth metal-based permanent magnet by means of a copper electroplating treatment by using a plating solution having its pH adjusted to a range from 9.0 to 11.5 and containing at least the following three components: (1) Cu2+ ions, (2) a chelating agent having a chelate stability constant of 10.0 or higher for Cu2+ ions, and (3) a chelating agent having a chelate stability constant of 16.0 or higher for Fe3+ ions (where, the aforementioned chelate stability constants are confined to conditions of pH 9.0 to 11.5).
摘要翻译： [问题]提供一种稀土类金属系永久磁铁的制造方法，该稀土类金属系永久磁铁的表面具有使用能够形成具有优异粘合性的镀铜膜的铜电镀处理用新型电镀液的铜镀膜 稀土金属基永磁体的表面。 [解决方法]根据本发明的在其表面上具有镀铜膜的稀土金属基永磁体的制造方法的特征在于，其包括在稀土金属基永久磁铁的表面上形成镀铜膜， 通过使用其pH调节至9.0〜11.5范围内的至少含有以下三种成分的电镀液，通过铜电镀处理进行铜电镀处理：（1）Cu 2+离子，（2）螯合剂 对于Cu 2+离子的稳定常数为10.0以上，（3）Fe 3+离子的螯合稳定性常数为16.0以上的螯合剂（其中上述螯合稳定性常数限于pH 9.0〜11.5的条件）。
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