公开(公告)号：US20170015077A1

公开(公告)日：2017-01-19

申请号：US15208651

申请日：2016-07-13

Applicant: DENSO CORPORATION

Inventor： Eiichi KOBAYASHI ,  Seiya WATANABE ,  Tooru HIGUCHI

IPC: B30B11/04 ,  B22F3/03 ,  B28B3/02

CPC classification number: B22F3/03 ,  B22F2999/00 ,  B28B3/021 ,  B28B13/023 ,  B30B11/02 ,  B30B15/304 ,  B22F3/004

Abstract: A punch unit is used in a powder press molding device that includes a die plate including a cavity in which a compacted powder pellet can be formed, the powder press molding device including a ram moving in a direction approaching the die plate and in a direction away from the die plate. The punch unit includes a punch inserted into the cavity of the die plate when the ram approaches the die plate, and a supporting portion supporting the punch reciprocatably, the punch unit being movable along a plane intersecting with the moving direction of the ram in a state where the punch is removed from the cavity. The punch unit is capable of shortening a distance in which the ram moves, and a cycle time can be shortened.

Abstract translation: 冲压单元用于粉末压制成形装置中，其包括模具板，该模具板包括可形成压实的粉末颗粒的空腔，该粉末压制成型装置包括沿接近模板的方向移动的柱塞， 从模板。 冲头单元包括当冲头接近模板时插入模板的空腔中的冲头和可往复运动地支撑冲头的支撑部分，冲头单元可在与冲头的移动方向相交的平面中处于一种状态 其中冲头从腔中移除。 冲头单元能够缩短冲头移动的距离，并且可以缩短循环时间。

公开(公告)号：US20150129794A1

公开(公告)日：2015-05-14

申请号：US14534706

申请日：2014-11-06

Applicant: DENSO CORPORATION

Inventor： Eiichi KOBAYASHI ,  Kunihiro KODAMA ,  Masashi TOTOKAWA ,  Satoshi TAKEUCHI

IPC: H01F41/02 ,  B22F1/02 ,  B22F3/10 ,  B22F3/105 ,  H01F1/33

CPC classification number: B22F1/02 ,  B22F3/1039 ,  B22F3/105 ,  B22F2003/1053 ,  H01F1/33

Abstract: In a manufacturing method of a soft magnetic member, a material powder that includes ferrous particles and an organic layer formed on a surface of each of the ferrous particles is prepared. The organic layer contains at least one element selected from the group consisting of Si, Mg, Ti, and V. The material powder is compacted to form a green compact, and the green compact is induction-heated with a frequency of 100 kHz or higher to form an insulation layer made of an oxide containing the element on the surface of each of the ferrous particles.

Abstract translation: 在软磁性构件的制造方法中，制备包含铁粒子的材料粉末和在各种亚铁粒子的表面上形成的有机层。 有机层含有选自由Si，Mg，Ti，V组成的组中的至少一种元素。该材料粉末被压实以形成生坯，并且以100kHz或更高的频率对生坯进行感应加热 在每个亚铁颗粒的表面上形成由含有元素的氧化物制成的绝缘层。