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1. 发明专利

JP2019019383A 焼結部材、及び焼結部材の製造方法审中-公开
公开(公告)号：JP2019019383A
公开(公告)日：2019-02-07
申请号：JP2017139342
申请日：2017-07-18
申请人： SUMITOMO ELECTRIC INDUSTRIES , SUMITOMO DENKO SHOKETSU GOKIN KK
发明人： EGASHIRA SHIGEKI , ISHIMINE ASAYUKI , NODA MUNEMASA
IPC分类号： B22F5/10 , B22F1/00 , B22F3/035 , C22C38/00
摘要：【課題】径方向の内周側又は外周側の一方側が高硬度で、他方側が低硬度な焼結部材を提供する。【解決手段】鉄基合金からなる組成を有する筒状の焼結部材であって、径方向の内周側及び外周側の一方に形成され、C含有量が0.7質量%以上で、ビッカース硬さが650Hv以上である高炭素高硬度部と、径方向の内周側及び外周側の他方に形成され、C含有量が0.5質量%以下で、ビッカース硬さが500Hv以下である低炭素低硬度部とを備え、前記高炭素高硬度部側から前記低炭素低硬度部側に向かって径方向に沿ってビッカース硬さのプロファイルをとったとき、前記プロファイルにおけるビッカース硬さの下降開始点とビッカース硬さの下降収束開始点とを結ぶ直線の傾きが−0.25以下である焼結部材。【選択図】図1

2. 发明专利

JP2019019362A 焼結部材、及び焼結部材の製造方法审中-公开
公开(公告)号：JP2019019362A
公开(公告)日：2019-02-07
申请号：JP2017137468
申请日：2017-07-13
申请人： SUMITOMO ELECTRIC INDUSTRIES , SUMITOMO DENKO SHOKETSU GOKIN KK
发明人： EGASHIRA SHIGEKI
IPC分类号： B22F3/10 , B22F1/00 , C22C33/02 , C22C38/00
摘要：【課題】機械的強度に優れる焼結部材を提供する。【解決手段】鉄系合金からなる組成を有する焼結部材であって、相対密度が95%以上、前記焼結部材の断面における空孔の平均径が15μm以下、前記焼結部材の断面における空孔の真円度が2以下である焼結部材。【選択図】なし

3. 发明专利

JP2013098384A Dust core 审中-公开
标题翻译： DUST CORE
公开(公告)号：JP2013098384A
公开(公告)日：2013-05-20
申请号：JP2011240374
申请日：2011-11-01
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社 , Sumitomo Denko Shoketsu Gokin Kk , 住友電工焼結合金株式会社
发明人： EGASHIRA SHIGEKI , MAEDA TORU
IPC分类号： H01F1/22 , B22F1/00 , B22F1/02 , B22F3/00 , B22F3/24 , C22C19/03 , C22C38/00 , H01F1/147 , H01F27/255 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a dust core having a high magnetic permeability and a low loss, and a manufacturing method thereof.SOLUTION: The dust core comprises a plurality of coated particles having an insulating film on surfaces of soft magnetic particles, and the soft magnetic particles comprise Fe-Si-Al allow particles and Fe-Ni alloy particles. The Fe-Si-Al alloy particles have an average particle size of 25 to 100 μm, and the Fe-Ni alloy particles have an average particle size of less than 25 μm. Spaces formed by the plurality of Fe-Si-Al alloy particles are filled with fine Fe-Ni alloy particles which are superior in compressibility relatively and have a small coercive force, so that the dust core is superior in moldability and can have an improved magnetic permeability and a low loss. Raw material powder is compressed and molded and then is subjected to heat treatment at a heating temperature of 550 to 900°C. Therefore, distortion during molding is eliminated to reduce a hysteresis loss, and thermal damage of the insulating film is prevented to reduce an eddy current loss, and then the dust core with a low loss can be obtained.
摘要翻译：要解决的问题：提供具有高磁导率和低损耗的防尘芯及其制造方法。解决方案：防尘芯包括在软磁性颗粒的表面上具有绝缘膜的多个涂覆颗粒，软磁性颗粒包含Fe-Si-Al允许颗粒和Fe-Ni合金颗粒。 Fe-Si-Al合金粒子的平均粒径为25〜100μm，Fe-Ni合金粒子的平均粒径小于25μm。由多个Fe-Si-Al合金颗粒形成的空间被相对地压缩性优异且矫顽力小的Fe-Ni合金微粒填充，使得防尘芯具有优异的成型性，并且可以具有改进的磁性渗透性和低损失。将原料粉末压缩成型，然后在550〜900℃的加热温度下进行热处理。因此，消除了成型时的变形以减小滞后损耗，并且防止了绝缘膜的热损伤以减小涡流损耗，并且可以获得具有低损耗的压粉芯。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012186255A Dust core and manufacturing method therefor 审中-公开
标题翻译：其制造方法及其制造方法
公开(公告)号：JP2012186255A
公开(公告)日：2012-09-27
申请号：JP2011047257
申请日：2011-03-04
申请人： Sumitomo Electric Ind Ltd , Sumitomo Denko Shoketsu Gokin Kk , 住友電工焼結合金株式会社 , 住友電気工業株式会社
发明人： EGASHIRA SHIGEKI , MAEDA TORU
IPC分类号： H01F1/24 , B22F1/00 , B22F1/02 , B22F3/00 , C21D6/00 , C22C33/02 , C22C38/00 , H01F1/147 , H01F27/255 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a dust core having a high permeability equivalent to or exceeding that of Sendust, and a low iron loss approximate to that of Sendust.SOLUTION: The dust core is composed of coated powder consisting of multiple coated particles, i.e. soft magnetic particles having an insulation coating on the surface, and a shape-retaining material which integrates these coated particles. In the dust core, the soft magnetic particles are composed of mixed particles of Fe-Si-Al alloy particles and Fe-Ni alloy particles, and when the dust core is analyzed by X-ray diffractometry, the next diffraction peak intensity ratio is 0.45 or less. Integrated intensity of 1st peak of FeO/{(integrated intensity of 1st peak of duplicated Fe-Si-Al and Fe-Ni×volume fraction of Fe-Ni occupying the total volume of Fe-Si-Al and Fe-Ni)+integrated intensity of 1st peak of FeNi}.
摘要翻译：要解决的问题：提供具有等于或超过Sendust的高渗透性的高磁导率的粉尘芯和接近于Sendust的低铁损。解决方案：防尘芯由涂覆的粉末组成，涂覆的粉末由多个涂覆的颗粒组成，即在表面上具有绝缘涂层的软磁性颗粒和将这些涂覆的颗粒整合的形状保持材料。在磁芯中，软磁性颗粒由Fe-Si-Al合金颗粒和Fe-Ni合金颗粒的混合颗粒组成，当通过X射线衍射分析灰尘芯时，下一个衍射峰强度比为0.45 或更少。 Fe 2 O 3的第一峰的积分强度（复制Fe-Si-Al的第一峰的积分强度 Fe-Ni×占Fe-Si-Al和Fe-Ni总体积的Fe-Ni的体积分数）+ FeNi 3 的第一峰的积分强度。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2013062457A Green compact and current sensor 审中-公开
标题翻译：绿色紧凑型和电流传感器
公开(公告)号：JP2013062457A
公开(公告)日：2013-04-04
申请号：JP2011201424
申请日：2011-09-15
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社 , Sumitomo Denko Shoketsu Gokin Kk , 住友電工焼結合金株式会社
发明人： EGASHIRA SHIGEKI
IPC分类号： H01F1/24 , G01R15/20 , H01F27/255 , H01F38/20
摘要： PROBLEM TO BE SOLVED: To provide green compact with which a high-performance current sensor can be obtained in high productivity, and to provide a manufacturing method thereof as well as a current sensor.SOLUTION: A current sensor 100 comprises: a magnetic core 110 having a gap 120; and a magnetoelectric transducer 200 interposed in the gap 120. A green compact obtained by a pressure molding of coated magnetic powder that comprises insulation coating around the outer periphery of magnetic particles is provided as the magnetic core 110. The green compact comprises the magnetic particles containing 97 mass% or more of Fe and having average grain diameter of 165 μm or more. The insulation coating is substantially composed of Fe(PO). The green compact can have an enhanced linearity due to an enhanced saturation flux density owing to a lot of Fe component, lowered hysteresis tolerance due to a lowered magnetic coercive force owing to the relative coarse grains, and an excellent frequency characteristic that can keep enough insulation quality even if the heat treatment temperature for removing distortion is raised since the green compact comprises the specific insulation coating having an excellent heat resistance. The green compact is superior to a silicon steel plate in productivity.
摘要翻译：要解决的问题：提供可以以高生产率获得高性能电流传感器的生坯，并提供其制造方法以及电流传感器。电流传感器100包括：具有间隙120的磁芯110; 以及插入在间隙120中的磁电换能器200.作为磁芯110，提供了包含磁性粒子的外周周围的绝缘涂层的涂覆磁粉的压力成形得到的生坯。该生坯包含含有 97质量％以上的Fe，平均粒径为165μm以上。绝缘涂层基本上由Fe 3 （P 2 O 7 ） 2 。由于由于大量的Fe成分而导致的饱和磁通密度增加，因此由于相对粗的晶粒导致的矫顽磁力降低，因此能够提高线性度，能够保持足够的绝缘性的极好的频率特性即使提高除去变形的热处理温度，由于生坯成型体具有耐热性优异的特定绝缘涂层，所以质量即可。该生坯在生产率方面优于硅钢板。版权所有（C）2013，JPO＆INPIT

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