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31. 发明专利

JP2011171346A Iron-based soft magnetic powder for dust core, method of manufacturing the same, and dust core 有权
标题翻译：用于磁芯的基于铁的软磁粉，其制造方法和除尘芯
公开(公告)号：JP2011171346A
公开(公告)日：2011-09-01
申请号：JP2010031118
申请日：2010-02-16
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , OWAKI TAKESHI , HOJO TAKAFUMI , NISHIDA SATOSHI , TANIGUCHI YUJI
IPC分类号： H01F1/26 , B22F1/00 , B22F1/02 , B22F3/00 , H01F1/22 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide iron-based soft magnetic powder for a dust core with superior thermal stability, which can effectively insulate iron powder particles from one another even when rare metal, which is difficult to obtain and is expensive, is not used and even when an insulating material is reduced in amount for high-density molding, and is excellent in mechanical strength, and further can maintain electric insulation even when a high-temperature heat treatment is carried out; to provide a method of manufacturing the iron-based soft magnetic powder for the dust core; and to provide the dust core.
SOLUTION: On a surface of the iron-based soft magnetic powder, a phosphoric acid-based conversion coating and a silicone resin coating are formed in order from inside, and the phosphoric acid-based conversion coating contains P, B, Mg, and Al.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有优异热稳定性的铁粉软磁粉，即使难以获得并且昂贵的稀有金属也能够有效地使铁粉粒彼此绝缘，即使在高密度成型时绝缘材料的量减少，机械强度也优异的情况下，即使进行高温热处理也能够保持电绝缘性，提供制造用于防尘芯的铁基软磁性粉末的方法; 并提供防尘芯。解决方案：在铁基软磁性粉末的表面上，从内部依次形成磷酸系转化膜和有机硅树脂涂层，磷酸系转化膜含有P，B，Mg ，和Al。版权所有（C）2011，JPO＆INPIT

32. 发明专利

JP2011030334A Stator core of axial gap motor and method for manufacturing stator core of axial gap motor 审中-公开
标题翻译：轴向间隙电机的定子芯和制造轴向电机的定子芯的方法
公开(公告)号：JP2011030334A
公开(公告)日：2011-02-10
申请号：JP2009172355
申请日：2009-07-23
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , HOJO TAKAFUMI
IPC分类号： H02K21/24 , H02K1/02 , H02K1/14 , H02K1/27 , H02K15/02
CPC分类号： Y02T10/641
摘要： PROBLEM TO BE SOLVED: To provide a stator core of an axial gap motor wherein the output of the axial gap motor is enhanced by increasing the magnetic permeability of the yoke part of the stator core in the circumferential direction and that of the tooth part thereof in the axial direction, and a method for manufacturing the stator core of this axial gap motor. SOLUTION: The stator core 1 is formed of dust core magnetic material obtained by molding metal magnetic powder 5 each particle of which is coated with an insulating film and is in a flat shape. Each flat particle of the metal magnetic powder 5 has the long axis direction oriented as follows: at the yoke part 2 of the stator core 1, it is oriented in the direction of the circumference of the yoke part, and at the tooth part 3 of the stator core 1, it is oriented in the axial direction. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种轴向间隙电动机的定子铁心，其中轴向间隙电动机的输出通过增加定子铁心的磁轭部分在圆周方向上的磁导率和齿的磁导率来增强轴向间隔电动机的定子铁芯的制造方法。解决方案：定子铁芯1由通过模制每个颗粒被绝缘膜涂覆并且呈扁平形状的金属磁粉5而获得的压粉磁芯材料形成。金属磁性粉末5的每个平坦颗粒的长轴方向取向如下：在定子铁芯1的轭部2处，其定向在轭部的圆周方向，并且在齿部3处定子铁芯1沿轴向取向。版权所有（C）2011，JPO＆INPIT

33. 发明专利

JP2010087366A Metal powder for soft magnetic composite material, and soft magnetic composite material 审中-公开
标题翻译：软磁复合材料用金属粉末及软磁复合材料
公开(公告)号：JP2010087366A
公开(公告)日：2010-04-15
申请号：JP2008256615
申请日：2008-10-01
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , HOJO TAKAFUMI , HASHIMOTO HIROSHI , HASE TAKASHI , ZAITSU TAKASHI , OZAKI OSAMU
IPC分类号： H01F1/33 , H01F1/26 , H01F27/24 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide: metal powder for a soft magnetic composite material manufacturing a core or the like of a reactor having an excellent constant permeability characteristic even when a gap formed in the core is eliminated; and the soft magnetic composite material.
SOLUTION: This metal powder for the soft magnetic composite material includes: a metal powder body formed of iron-based alloy powder or pure iron powder; and an insulation coating film for coating the surface of the metal powder body. The film thickness of the insulation coating film is 1/100-1/2 of the average particle diameter of the metal powder body, and the insulation coating film is formed of a material without being melted or dissolved at a temperature to which it is exposed in a process of forming the metal powder into a completed product.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供：即使消除在芯中形成的间隙，也可以制造具有优异的恒定磁导率特性的反应器的芯等的软磁性复合材料的金属粉末; 和软磁复合材料。该软磁性复合材料用金属粉末包括：铁基合金粉末或纯铁粉末形成的金属粉体; 以及用于涂覆金属粉体的表面的绝缘涂膜。绝缘涂膜的膜厚为金属粉末体的平均粒径的1/100〜1/2，绝缘涂膜由材料形成，在暴露于温度下不融化或溶解在将金属粉末形成成品的过程中。版权所有（C）2010，JPO＆INPIT

34. 发明专利

JP2009252961A Soft magnetic material for dust core and dust core 有权
标题翻译：柔软的磁性材料用于粉尘和粉尘核心
公开(公告)号：JP2009252961A
公开(公告)日：2009-10-29
申请号：JP2008098332
申请日：2008-04-04
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , AKAGI NOBUAKI , HOJO TAKAFUMI
IPC分类号： H01F1/24 , B22F1/00 , B22F1/02 , H01F27/255
摘要： PROBLEM TO BE SOLVED: To provide a soft magnetic material for dust cores and a dust core, which can keep magnetic isotropy, improve magnetic permeability and is suitable to be used in the production of electromagnetic parts such as motors used by ac current. SOLUTION: The soft magnetic material for dust cores is composed of a soft magnetic powder whose surface is insulation treated. In the soft magnetic powder contained, the soft magnetic powder of smaller particle diameters has an average aspect ratio of at least 3.0 and the soft magnetic powder of larger particle diameters has an average aspect ratio of less than 3.0. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供可以保持磁各向同性的防尘芯和防尘芯的软磁性材料，提高导磁率，并且适用于生产诸如电流使用的电动机的电磁部件。解决方案：用于防尘芯的软磁性材料由表面进行绝缘处理的软磁性粉末构成。在所含的软磁性粉末中，粒径较小的软磁性粉末的平均纵横比为3.0以上，粒径较大的软磁性粉末的平均纵横比小于3.0。版权所有（C）2010，JPO＆INPIT

35. 发明专利

JP2009013458A Method for compacting large-sized high density green compact 有权
标题翻译：用于压缩大尺寸高密度绿色压缩的方法
公开(公告)号：JP2009013458A
公开(公告)日：2009-01-22
申请号：JP2007175471
申请日：2007-07-03
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , HOJO TAKAFUMI , SATO MASAAKI
IPC分类号： B22F3/035 , B30B11/00 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a method for compacting a large-sized high density green compact where, upon the compacting of a large-sized high density green compact by a die lubrication compacting process, a sound green compact free from galling and dents caused by the entanglement of a lubricant can be obtained.
SOLUTION: Regarding the method for compacting a large-sized high density green compact having a density of ≥7.60 g/cm
3 by a die lubrication compacting process or a warm die lubrication compacting process in a state where a die having a cavity with a depth of ≥9 cm and a volume of ≥700 cm
3 is used, and raw material powder is packed into the cavity, the upper half part of the inner wall face of the die is coated with a lubricant in an amount satisfying the range of 3 to 6 mg/cm
2 per unit area, and further, the lower half part is coated with a lubricant in an amount satisfying the range of 0.05 to 0.1 mg/cm
2 per unit area.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决问题的方案：提供一种压缩大型高密度生坯的方法，其中，通过模具润滑压实方法在大型高密度生坯压实时，不产生磨损的声音绿色压实并且可以获得由润滑剂的缠结引起的凹痕。解决方案：关于通过模具润滑压实工艺或温度模具润滑压实方法压实密度为≥7.60g/ cm 3以上的大型高密度生坯的方法使用具有深度≥9cm的空腔和≥700cm3的体积的模具，将原料粉末包装到空腔中，内壁的上半部分以每单位面积3〜6mg / cm 2·SP 2的范围内的润滑剂涂覆模具面，另外，下半部分涂布润滑剂，其量满足每单位面积的0.05〜0.1mg / cm 2的范围。版权所有（C）2009，JPO＆INPIT

36. 发明专利

JP2008063649A Powder for dust core, its production method and method for producing dust core 审中-公开
标题翻译：粉尘粉，其生产方法和生产粉尘核心的方法
公开(公告)号：JP2008063649A
公开(公告)日：2008-03-21
申请号：JP2006245887
申请日：2006-09-11
申请人： Asmo Co Ltd , Hitachi Powdered Metals Co Ltd , Kobe Steel Ltd , アスモ株式会社 , 日立粉末冶金株式会社 , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , AKAGI NOBUAKI , HOJO TAKAFUMI , ISHIHARA CHIO , IWAKIRI MAKOTO , YAMADA SOHEI , JIKO YASUKUNI
IPC分类号： B22F1/02 , B22F3/00 , H01F1/26 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a powder for a dust core whose formability can be improved to a standard more excellent than that of the conventional powder for a dust core composed of a phenolic resin-covered metal powder without causing troubles such as the remarkable deterioration in the strength of a formed body as such caused by lubricant addition; to provide its production method; and to provide a method for producing a dust core. SOLUTION: (1) Regarding the powder for a dust core, the surface of a soft magnetic powder is covered with one or more kinds selected from a phenolic resin, an epoxy resin and a silicone resin by the amount of 0.01 to 0.5 mass% to the amount of the soft magnetic powder, and a polyamide resin with the average particle diameter of ≤100 μm is stuck to the surface thereof by the amount of 0.l to 1.0 mass% to the amount of the soft magnetic powder. (2) Regarding the method for producing powder for a dust core from a mixed body comprising a liquid body in which the above resin is dissolved into an organic solvent and a soft magnetic powder, the organic solvent is volatilized, so as to cover the surface of the soft magnetic powder with the above resin, thereafter, a polyamide resin with the average particle diameter of ≤100 μm is added, and mixing is performed. (3) Regarding the method for producing a dust core, when the powder for a dust core is subjected to compression molding, a mold lubrication molding process is used. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种粉芯，其成形性可以提高到与常规的由酚醛树脂覆盖的金属粉末组成的粉芯的粉末相比优异的标准，而不会引起诸如润滑剂添加引起的成形体强度的显着劣化; 提供其生产方式; 并提供一种制造防尘芯的方法。（1）关于粉芯的粉末，软磁粉末的表面被选自酚醛树脂，环氧树脂和有机硅树脂中的一种或多种，以0.01至0.5的量覆盖相对于软磁性粉末的量为质量％，平均粒径为100μm的聚酰胺树脂与其表面相对于软磁性粉末的量粘合0.1〜1.0质量％。（2）关于从包含上述树脂溶解在有机溶剂中的液体和软磁性粉末的混合体制造粉芯的粉末的方法，有机溶剂挥发以覆盖表面的软磁性粉末，然后加入平均粒径≤100μm的聚酰胺树脂，进行混合。（3）关于防尘芯的制造方法，在将压粉用粉末进行压缩成型的情况下，使用模具润滑成型工序。版权所有（C）2008，JPO＆INPIT

37. 发明专利

JP2003318014A Dust core powder, high-strength dust core, and method of manufacturing the same 有权
标题翻译：粉芯粉，高强度粉尘芯及其制造方法
公开(公告)号：JP2003318014A
公开(公告)日：2003-11-07
申请号：JP2002122562
申请日：2002-04-24
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： MITANI HIROYUKI , HOJO TAKAFUMI , FUJISAWA KAZUHISA
IPC分类号： C10M105/12 , B22F1/00 , B22F3/02 , C10M105/18 , C10M105/24 , C10M105/26 , C10M107/34 , C10M107/36 , C10M125/04 , C10M145/20 , C10M169/04 , C10N10/16 , C10N20/06 , C10N30/00 , C10N30/10 , C10N40/14 , H01F1/26 , H01F27/24 , H01F27/255 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide material powder, which contains soft magnetic powder, a binder resin, and lubricant, has electric resistance capable of restraining an eddy current among the soft magnetic powder particles and is capable of forming a dust core that has high mechanical strength and magnetic properties at a normal and high temperature and to provide a high-performance dust core using the material powder and a method of manufacturing the dust core.
SOLUTION: The dust core powder contains soft magnetic powder, phenolic resin fine powder, and a reactive lubricant. It is preferable that the dust core powder contains the phenolic resin fine powder which is 30 μm or below in an average grain diameter and has a methylol group in a molecule and the reactive lubricant which possesses a hydroxyl group, an epoxy group, or a carboxyl group as a reactive functional group. The high-performance dust core is formed by the use of the above dust core powder, and the method of manufacturing the dust core is provided.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供含有软磁性粉末，粘合剂树脂和润滑剂的材料粉末，具有能够抑制软磁性粉末颗粒之间的涡流的电阻，并且能够形成防尘芯，在正常和高温下具有高的机械强度和磁性，并且使用该材料粉末提供高性能的防尘芯和制造该防尘芯的方法。
解决方案：粉尘芯粉含有软磁粉，酚醛树脂细粉和活性润滑剂。粉芯粉末优选含有平均粒径为30μm以下且分子内具有羟甲基的酚醛树脂细粉末和具有羟基，环氧基或羧基的反应性润滑剂组作为反应性官能团。通过使用上述防尘芯粉末形成高性能防尘芯，并且提供了制造防尘芯的方法。版权所有（C）2004，JPO

38. 发明专利

JP2004010947A INTERMITTENT POWDER-APPLICATION DEVICE AND POWDER COMPACTING MACHINE WITH LUBRICATION INTO MOLD 审中-公开
公开(公告)号：JP2004010947A
公开(公告)日：2004-01-15
申请号：JP2002164649
申请日：2002-06-05
申请人： KOBE STEEL LTD , ASAHI SUNAC CORP
发明人： SATO MASAAKI , HOJO TAKAFUMI , SAWAYAMA TETSUYA , MURAKAMI MASAHIRO , HOTTA KENJI , HATA MAKOTO
IPC分类号： B30B11/00 , B22F3/035 , B30B15/00
摘要： PROBLEM TO BE SOLVED: To provide an intermittent application device, which stably, surely and quantitatively supplies a predetermined quantity of a powder such as a lubricant used in a mold, to a die, even when the powder is intermittently supplied in an extremely short cycle like a tenth to several seconds or shorter. SOLUTION: This application device for precisely and quantitatively supplying the predetermined quantity of the powder in a short cycle, comprises a powder feeding section, a quantitative sectioning unit connected to the powder feeding section, a drive motor for driving the sectioning unit, the pipeline for pneumatically transporting the powder that have been sectioned from the quantitative sectioning unit, a nozzle for supplying the powder to a part to be coated by spraying, and a clutch mechanism for switching a mode between transmission of the driving force of the above drive motor to the above sectioning unit and disconnection, in the short cycle. COPYRIGHT: (C)2004,JPO

39. 发明专利

JP2003253305A IN-MOLD LUBRICANT FOR POWDER METALLURGY AND POWDER METALLURGY METHOD 审中-公开
公开(公告)号：JP2003253305A
公开(公告)日：2003-09-10
申请号：JP2002051590
申请日：2002-02-27
申请人： KOBE STEEL LTD , HIRONO KAGAKU KOGYO
发明人： SATO MASAAKI , HOJO TAKAFUMI , MURAKAMI MASAHIRO , FUJISAWA KAZUHISA , OKUMURA KINICHI
IPC分类号： C10M107/28 , B22F3/02 , B22F3/035 , C10N20/00 , C10N20/06 , C10N40/36 , C10N50/08
摘要： PROBLEM TO BE SOLVED: To provide an in-mold lubricant by which a uniform lubricating film can be easily formed in the inner surface of a mold at a room temperature or a high temperature in a short period of time without extending a molding cycle in a compression molding, whereby the extraction pressure after powder compacting can be reduced with no extraction noise, the inner surface of the mold and the surface of a green compact are not damaged, the volatilization of a toxic gas and a solid material are not generated, and a sintered product excellent in mechanical properties can be obtained. SOLUTION: The powdery in-mold lubricant for powder metallurgy, having an average particle diameter of 0.05-80 μm and containing, as an essential component, an amorphous polymer powder based on a polymer which is a (meth) acrylate-base polymer and has a glass transition temperature of ≥50°C, and a powder metallurgy method using the lubricant are disclosed. COPYRIGHT: (C)2003,JPO

40. 发明专利

JP2010225673A MIXED POWDER FOR DUST CORE, AND METHOD OF MANUFACTURING DUST CORE USING MIXED THE POWDER 有权
公开(公告)号：JP2010225673A
公开(公告)日：2010-10-07
申请号：JP2009068820
申请日：2009-03-19
申请人： KOBE STEEL LTD
发明人： MITANI HIROYUKI , HOJO TAKAFUMI , AKAGI NOBUAKI
IPC分类号： H01F1/24 , B22F1/00 , B22F1/02 , B22F3/24 , H01F27/255 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide powder for a dust core for manufacturing the dust core with a low iron loss (eddy current loss and hysteresis loss) and high magnetic flux density. SOLUTION: Iron-based powder A where an insulating inorganic coat (a) and a heat-resistant resin coat (b) are formed in this order on a surface is mixed with iron-based powder B where an insulating inorganic coat (c) is formed on a surface. The ratio of mixture between the iron-based powder A and iron-based powder B is preferred to satisfy the following equation (1). The equation (1) is 0% COPYRIGHT: (C)2011,JPO&INPIT

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