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1. 发明专利

JP2014138052A Powder magnetic core and manufacturing method therefor 有权
标题翻译：粉末磁芯及其制造方法
公开(公告)号：JP2014138052A
公开(公告)日：2014-07-28
申请号：JP2013005221
申请日：2013-01-16
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , TSUNAKAWA MASAAKI , AKAIWA KOTA , TAMURA YASUHARU
IPC分类号： H01F41/02 , H01F1/24 , H01F1/33
摘要： PROBLEM TO BE SOLVED: To provide a power magnetic core exhibiting excellent performance in any of standard deviation of density, magnetic characteristics and strength, and to provide a manufacturing method therefor.SOLUTION: An amorphous soft magnetic alloy powder, and glass powder having a softening point lower than the crystallization temperature of the amorphous soft magnetic alloy powder are mixed. A binder resin added with a silane coupling agent is admixed to the mixture and pressure molded. A molding thus obtained is heat treated at a temperature lower than the crystallization temperature of the amorphous soft magnetic alloy. The amount of silane coupling agent being added to binder resin is 0.25%-1.0% for the binder resin. A methyl phenyl silicon resin is used preferably as the binder resin. When mixing the amorphous soft magnetic alloy powder and low melting point glass, a lubricative resin may be added.
摘要翻译：要解决的问题：提供在密度，磁特性和强度的任何标准偏差中表现出优异性能的功率磁芯，并提供其制造方法。解决方案：一种无定形软磁性合金粉末和具有软化的玻璃粉末点低于无定形软磁合金粉末的结晶温度。加入硅烷偶联剂的粘合剂树脂混合并加压成型。将这样得到的模塑品在比非晶态软磁性合金的结晶温度低的温度下进行热处理。添加到粘合剂树脂中的硅烷偶联剂的量为粘合剂树脂的0.25％-1.0％。优选使用甲基苯基硅树脂作为粘合剂树脂。当混合无定形软磁性合金粉末和低熔点玻璃时，可以加入润滑树脂。

2. 发明专利

JP2009259979A Dust core, manufacturing method of dust core, choke coil, and its manufacturing method 有权
标题翻译：粉芯，制芯线及其制造方法的制造核心，制造方法
公开(公告)号：JP2009259979A
公开(公告)日：2009-11-05
申请号：JP2008106143
申请日：2008-04-15
申请人： Tamura Seiko Kk , Tamura Seisakusho Co Ltd , タムラ精工株式会社 , 株式会社タムラ製作所
发明人： TAMURA YASUHARU , TOMITA MANABU , OSHIMA YASUO , SHIGETA SUSUMU
IPC分类号： H01F1/26 , B22F1/02 , B22F3/00 , H01F1/147 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide: a dust core capable of reducing iron loss, and having an excellent D.C. superposition characteristic without degrading permittivity even when a heat treatment is carried out in an oxidation atmosphere; a manufacturing method of the dust core; a choke coil; and its manufacturing method. SOLUTION: Soft magnetic alloy powder containing an Fe-Si-Al alloy as a main constituent is coated with methylphenyl-based silicone vanish, and drying by heating around 200°C is carried out. Thereafter, a metal salt of stearic acid as a lubricant is mixed therein in order to increase a thermal decomposition speed of a methyl group. A mold body is formed at room temperature by pressurizing and molding it. In this case, the heated and dried methylphenyl-based silicone vanish acts as a binder in molding. Thereafter, this dust core is manufactured by executing a heat treatment to the mold body at 600-800°C in the atmosphere. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供：即使在氧化气氛中进行热处理，也能够降低铁损，并具有优异的直流积分特性而不降低介电常数; 防尘芯的制造方法; 扼流线圈及其制造方法。解决方案：以Fe-Si-Al合金为主要成分的软磁性合金粉末涂覆有甲基苯基硅氧烷，并进行约200℃加热干燥。此后，将硬脂酸金属盐作为润滑剂混合，以增加甲基的热分解速度。在室温下通过加压成形模具体。在这种情况下，加热和干燥的基于甲基苯基的硅氧烷消失剂在模制中用作粘合剂。此后，通过在大气中在600〜800℃下对模具体进行热处理来制造该防尘芯。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2014084469A Mold for the molding of dust core 有权
标题翻译：用于模具芯的模具
公开(公告)号：JP2014084469A
公开(公告)日：2014-05-12
申请号：JP2012231507
申请日：2012-10-19
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , KONO TETSUYA , AKAIWA KOTA , TAMURA YASUHARU
IPC分类号： B22F3/035 , B22F3/00 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a mold for the molding of a dust core with a hollow part in which a part is opened such as a U-shaped mold or an E-shaped mold, in which friction between a core rod and the dust core after molding is reduced, the core rod is smoothly pulled out from the inside of the hollow part of the dust core, and further, the generation of flaws at the inside face of the hollow part is prevented.SOLUTION: The mold comprises: a die 1; an upper punch 3 and a lower punch 2 arranged at the inside thereof freely insertably-removably thereto; and a core rod 4. The core rod 4 is arranged freely insertably/removably along the axial direction of the die 1 at the inside of the upper and lower punches, is provided with a horizontal-cross sectional shape correspondingly to the shape of the horizontal cross-section in the hollow part of the dust core 70, and is slid and contacted to both the inside face of the hollow part 71 of the dust core 70 and the inside face of the die 1. A coating 42 is formed at the part of the core rod 4 confronted with the inside face of the hollow part in the dust core 70 and also at the part to which pressing force is applied toward the inside of the hollow part 71 after the release of binding force by the die 1 to the dust core 70.
摘要翻译：要解决的问题：提供一种用于模制具有中空部分的压模芯的模具，其中打开零件如U型模具或E形模具，其中芯棒和灰尘之间的摩擦成型后的芯体减小，芯棒从压粉芯的中空部分的内部平滑地拉出，并且防止了在中空部分的内表面产生缺陷。解决方案：模具包括：死1 布置在其内部的上冲头3和下冲头2可自由地可插入地移除; 芯杆4在上冲头和下冲头的内侧沿着模具1的轴向可自由地可插入/可移除地设置的芯棒4设置有与水平形状对应的水平横截面形状并且与防尘芯70的中空部71的内面和模具1的内面滑动接触。在该部分的一部分上形成有涂层42 芯棒4面对着防尘芯70中的中空部分的内表面，以及在模具1的结合力释放到中空部分71的内部之后施加按压力的部分防尘芯70。

4. 发明专利

JP2015032708A 軟磁性粉末、コア及びその製造方法有权
标题翻译：软磁粉，芯及其制造方法
公开(公告)号：JP2015032708A
公开(公告)日：2015-02-16
申请号：JP2013161678
申请日：2013-08-02
申请人：株式会社タムラ製作所 , Tamura Seisakusho Co Ltd
发明人： OSHIMA YASUO , AKAIWA KOTA , TSUNAKAWA MASAAKI , TAMURA YASUHARU , NINOMIYA YUKIKAZU
IPC分类号： H01F1/153 , B22F1/02 , B22F3/00 , H01F1/24 , H01F27/24 , H01F27/255 , H01F41/02
摘要：【課題】機械的強度が高く、軟磁気特性の優れた軟磁性粉末と、そのような軟磁性粉末を使用したコア及びその製造方法を提供する。【解決手段】第1の非晶質軟磁性粉末と、第1の非晶質軟磁性粉末より平均粒径が小さい第2の非晶質軟磁性粉末を混合して得られる複合磁性粉末に、その0.25〜2.0wt%の縮合リン酸金属化合物を混合し、非晶質軟磁性粉末の周囲に縮合リン酸金属化合物の被覆を形成する。縮合リン酸金属化合物として、第一リン酸アルミを加熱して脱水反応させたトリポリリン酸アルミニウムやメタリン酸アルミニウムを使用することができる。縮合リン酸金属化合物に、硬化促進剤として、Al2O3、SiO2、MgO、Mg(OH)2、CaO、Ca(OH)2、石綿、タルク、フライアッシュの少なくとも1種類を添加することもできる。複合磁性粉末に縮合リン酸金属化合物を混合した後、所定の形状に成型することで、コアを製造する。【選択図】図1
摘要翻译：要解决的问题：提供：机械强度高，软磁性优异的软磁粉末; 使用这种软磁性粉末排列的芯; 及其制造方法。解决方案：制造芯的方法包括以下步骤：将0.25-2.0重量％的聚合金属磷酸盐化合物与通过将第一非晶软磁粉与第二非晶软磁粉末的平均粒径小于第一非晶软磁粉末，由此用浓缩的金属磷酸盐化合物涂覆无定形软磁性粉末。作为缩合金属磷酸盐化合物，可以使用三聚磷酸铝或偏磷酸铝，其是通过加热一磷酸铝而引起其脱水反应产生的。作为硬化促进剂可以向缩合金属磷酸盐化合物添加AlO，SiO，MgO，Mg（OH），CaO，Ca（OH），石棉，滑石和飞灰中的至少一种材料。芯的制造方法还包括以下步骤：将复合磁性粉末与聚合的金属磷酸盐化合物混合并将所得粉末成形为预定形式，从而制造芯。

5. 发明专利

JP2010219161A Dust core and method of manufacturing the same 有权
标题翻译：粉尘芯及其制造方法
公开(公告)号：JP2010219161A
公开(公告)日：2010-09-30
申请号：JP2009061985
申请日：2009-03-13
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , SHIGETA SUSUMU , TAMURA YASUHARU , TOMITA MANABU
IPC分类号： H01F1/26 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/02 , B22F3/24 , C22C38/00 , H01F1/147 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a dust core exhibiting excellent radial crushing strength and magnetic characteristics regardless of low-pressure molding at a room temperature. SOLUTION: A soft magnetic alloy powder containing iron, silicon and aluminum as principal components is heated in a hydrogen atmosphere at a temperature higher than a temperature at which the soft magnetic alloy is made brittle and higher than a temperature at which sintering is started. A binding insulating resin is mixed into the heated soft magnetic alloy powder. The soft magnetic alloy is mixed with ethylene bis stearamide of 0.3 wt.% as a lubricous resin for 2 hours. A silane coupling agent of 1 mass% and a silicon resin of 0.8 wt.% are mixed into the soft magnetic alloy power mixed with the bonding insulating resin in this order and are heated and dried for 2 hours at 150°C. Ethylene bis stearamide of 0.4 wt.% is mixed into the mixture coated with the binding insulating resin as a lubricant resin. Then, the mixture is press-molded under a molding pressure of 1,600 MPa at a room temperature to form a molding. The molding is sintered for 6 hours at 700°C in the atmosphere. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种在室温下不管低压成型如何，具有优异的径向破碎强度和磁特性的防尘芯。解决方案：以铁，硅和铝为主要成分的软磁性合金粉末在氢气氛中在比软磁性合金变脆的温度高的温度下加热，高于烧结时的温度开始。将粘合绝缘树脂混合到加热的软磁合金粉末中。将软磁性合金与0.3重量％的亚乙基双硬脂酰胺作为润滑树脂混合2小时。将1质量％的硅烷偶联剂和0.8重量％的硅树脂依次混合到与粘合绝缘树脂混合的软磁合金粉末中，并在150℃下加热干燥2小时。将0.4重量％的乙烯双硬脂酰胺与作为润滑树脂的粘合绝缘树脂涂覆的混合物混合。然后，将混合物在室温下，在1600MPa的模塑压力下进行压模，以形成模制品。成型体在大气中在700℃下烧结6小时。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2010219159A Dust core and method of manufacturing the same 有权
标题翻译：粉尘芯及其制造方法
公开(公告)号：JP2010219159A
公开(公告)日：2010-09-30
申请号：JP2009061977
申请日：2009-03-13
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , SHIGETA SUSUMU , TAMURA YASUHARU , TOMITA MANABU
IPC分类号： H01F1/26 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/02 , B22F3/24 , C22C33/02 , C22C38/00 , H01F1/147 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a rust core high in density, low in loss and excellent in DC superposition characteristics. SOLUTION: In the first mixing process, a soft magnetic alloy powder containing iron, silicon and aluminum as principal components is mixed with a lubricant. In the coating process of coating a mixture subjected to the first mixing process with a binding insulating resin, a methyl-phenyl-based silicone adhesive is mixed into the mixture subjected to the first mixing process and is heated and dried for 2 hours at 150°C. In the second mixing step of mixing a lubricant into the mixture subjected to the coating process, a binding insulating resin is mixed into the first mixture coated with the lubricant. In the molding process, the soft magnetic alloy coated with the binder is press-molded under a molding pressure of 1,600 MPa in a nitrogen atmosphere to form a molding. At that time, the press-dried binding insulating resin acts as a binder in molding. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供高密度，低损耗和优异的直流叠加特性的铁芯。解决方案：在第一次混合过程中，以铁，硅和铝为主要成分的软磁性合金粉末与润滑剂混合。在用粘合绝缘树脂涂覆进行第一次混合的混合物的涂布过程中，将甲基 - 苯基类硅氧烷粘合剂混合到经过第一次混合过程的混合物中，并在150℃下加热干燥2小时 C。在将润滑剂混合到经过涂覆处理的混合物的第二混合步骤中，将粘合绝缘树脂混合到涂有润滑剂的第一混合物中。在成型工序中，在氮气气氛中，在1600MPa的成型压力下，将涂布有粘合剂的软磁性合金进行压制成型。此时，压干装订绝缘树脂在成型时用作粘合剂。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2014138134A Powder magnetic core and method for manufacturing the same 有权
标题翻译：粉末磁芯及其制造方法
公开(公告)号：JP2014138134A
公开(公告)日：2014-07-28
申请号：JP2013007024
申请日：2013-01-18
申请人： Tamura Seisakusho Co Ltd , 株式会社タムラ製作所
发明人： OSHIMA YASUO , TSUNAKAWA MASAAKI , AKAIWA KOTA , TAMURA YASUHARU
IPC分类号： H01F1/24 , H01F1/153 , H01F27/255 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a powder magnetic core which has improved moldability and strength, in addition to high density, DC superposition characteristics and low loss characteristics, and to provide a method for manufacturing the same.SOLUTION: In a powder magnetic core in which an adhesive resin is mixed into composite magnetic powder obtained by mixing first soft magnetic powder constituted by an amorphous substance and second soft magnetic powder constituted by an amorphous substance having an average grain diameter smaller than that of the first soft magnetic powder, the first soft magnetic powder has at least one main surface, the end on the main surface has a round shape, and a ratio between the first soft magnetic powder and the second soft magnetic powder is between 75:25 and 50:50. One example of alloy powder is Fe-based amorphous pulverized powder. During mixing, glass powder and a lubricating resin can be added.
摘要翻译：要解决的问题：提供除了高密度，DC叠加特性和低损耗特性之外还具有改进的成型性和强度的粉末磁芯，并提供其制造方法。解决方案：在粉末磁芯将粘合剂树脂混合成通过混合由非晶质构成的第一软磁粉末和由平均粒径小于第一软磁粉末的非晶质构成的第二软磁粉末而获得的复合磁粉，第一软磁性粉末具有至少一个主表面，主表面上的端部具有圆形，并且第一软磁粉末和第二软磁粉末之间的比率在75:25至50:50之间。合金粉末的一个例子是Fe基非晶态粉末粉末。混合时，可加入玻璃粉和润滑树脂。

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