公开(公告)号：WO2005038829A8

公开(公告)日：2005-07-28

申请号：PCT/JP2004014477

申请日：2004-10-01

Applicant: SUMITOMO ELECTRIC INDUSTRIES ,  TOYODA HARUHISA ,  KUGAI HIROKAZU ,  HIROSE KAZUHIRO ,  IGARASHI NAOTO ,  NISHIOKA TAKAO

Inventor： TOYODA HARUHISA ,  KUGAI HIROKAZU ,  HIROSE KAZUHIRO ,  IGARASHI NAOTO ,  NISHIOKA TAKAO

IPC: H01F1/33 ,  H01F41/02 ,  H01F1/24 ,  B22F1/02 ,  B22F3/00 ,  H01F27/255

CPC classification number: H01F41/0246 ,  B22F2998/00 ,  H01F1/33 ,  B22F1/02

Abstract: A process for producing a soft magnetism material, comprising the steps of performing a first heat treatment of metal magnetic particles (10) at 400 to below 900°C, forming multiple composite magnetic particles (30) composed of metal magnetic particles (10) each covered by insulating coating (20), and molding under pressure the multiple composite magnetic particles (30) into a shaped article. Through these steps, there is provided a process for producing a soft magnetism material having desired magnetic properties.

Abstract translation: 一种制造软磁材料的方法，包括以下步骤：在400℃至900℃以下对金属磁性颗粒（10）进行第一热处理，形成多个由金属磁性颗粒（10）组成的复合磁性颗粒（30） 由绝缘涂层（20）覆盖，并且在压力下将多个复合磁性颗粒（30）模制成成形制品。 通过这些步骤，提供了一种生产具有所需磁性的软磁材料的方法。

公开(公告)号：US6371063B2

公开(公告)日：2002-04-16

申请号：US73181800

申请日：2000-12-08

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： OYAMA HITOSHI ,  NISHIOKA TAKAO ,  MATSUNUMA KENJI ,  TAKIKAWA TAKATOSHI ,  KAJI TOSHIHIKO ,  KAWABE NOZOMU ,  SOGABE KOUICHI

IPC: C22C38/00 ,  C22C38/24 ,  F01L1/46 ,  F01L3/02 ,  F01L3/10 ,  F01L9/04 ,  F16F1/12

CPC classification number: F01L3/02 ,  F01L1/462 ,  F01L3/10 ,  F01L9/04 ,  Y10S977/725 ,  Y10S977/777

Abstract: It is proposed to lessen the weight and improve the mechanical strength of a retainer of a valve open-close mechanism driven by an electromagnetic actuator used in an automotive internal combustion engine. The electromagnetic actuator is mounted in a housing mounted on an internal combustion engine body. A first stem has its tip abutting the valve, which is provided with a retainer and carries a first coil spring. A second stem is provided on the other side of an armature. The second stem has a retainer. Between this retainer and the housing, a second coil spring is mounted. At least one of these parts is made of a metal smaller in specific weight than iron or its alloy. Each retainer has a boss and an arcuate corner portion having a radius of curvature R of 1.0 mm or over between a spring abutting surface and the boss to relieve stress concentration.

Abstract translation: 建议减轻由汽车内燃机中使用的电磁致动器驱动的阀开闭机构的保持器的重量和机械强度。 电磁致动器安装在安装在内燃机主体上的壳体中。 第一杆具有其尖端邻接阀，其具有保持器并且承载第一螺旋弹簧。 在衔铁的另一侧设置有第二杆。 第二杆具有保持架。 在该保持器和壳体之间，安装有第二螺旋弹簧。 这些部件中的至少一个由铁或其合金的比重小的金属制成。 每个保持器具有凸起和弓形角部，其在弹簧抵接表面和凸起之间具有1.0mm或更大的曲率半径R，以减轻应力集中。

公开(公告)号：ES2401483T3

公开(公告)日：2013-04-22

申请号：ES07743385

申请日：2007-05-15

Applicant: SUMITOMO ELECTRIC INDUSTRIES ,  DENSO CORP ,  SUMITOMO ELECTRIC SINTERED ALY

Inventor： IGARASHI NAOTO ,  NISHIOKA TAKAO ,  SHIMADA YOSHIYUKI ,  AKAO TSUYOSHI

IPC: H01F41/02 ,  B22F1/02 ,  C23C22/07 ,  H01F1/26

Abstract: Un núcleo de polvo que comprende material magnético blando, en el que dicho material magnético blandocomprende: una pluralidad de partículas magnéticas compuestas (30) que incluyen una partícula magnética metálica (10)hecha de hierro y una película aislante (20) que rodea una superficie de dicha partículas magnéticas metálica(10) y que contiene un fosfato; una resina de poliéterétercetona aromática (40); y un jabón metálico y/o un lubricante inorgánico (50) que tiene una estructura de cristal hexagonal, siendo dichojabón metálico y dicho lubricante inorgánico partículas con un tamaño medio de partícula de no más de 2,0 μm,en el queel contenido de dicho jabón metálico y/o dicho lubricante inorgánico (50) que tiene una estructura de cristalhexagonal no es inferior al 0,001 % en masa y no superior a 0,05 % en masa con respecto a dicha pluralidad departículas magnéticas compuestas (30), dicha resina de poliéterétercetona aromática (40) tiene un peso molecular promedio en peso de no menos de10.000 y no más de 100.000; y dicha resina de poliéterétercetona aromática (40) tiene un tamaño medio de partícula que no es inferior a 10veces el tamaño medio de partícula de dicho jabón metálico y/o dicho lubricante inorgánico (50) que tiene unaestructura de cristal hexagonal y que no es más de dos veces el tamaño medio de partícula de dicha partículamagnética metálica (10).

公开(公告)号：DE60004956D1

公开(公告)日：2003-10-09

申请号：DE60004956

申请日：2000-12-01

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： MOCHIDA YASUSHI ,  NISHIOKA TAKAO

IPC: F01L1/04 ,  F01L1/14 ,  F01L3/04 ,  A61F13/15 ,  C22C45/10 ,  F01L1/20

Abstract: Provided is a diamond-coated sliding part that is light, has excellent abrasion resistance, that prevents abrasion of the material of an opposite member, and that is effective in reducing power loss. This sliding part is especially useful as an adjusting shim for the valve train mechanism of an internal combustion engine such as an automobile engine in which the base material is silicon nitride or sialon and this base material surface is coated with a diamond coating layer. By performing finish processing on only a small part of peaks of diamond particles protruding from the surface of the diamond coating layer to reduce the height of the protrusions, or by controlling film forming conditions, etc., the profile bearing length ratio (tp) at a cutting level of 0.1 mu m for the sliding surface of the diamond coating layer is made 60% or greater.

公开(公告)号：DE69625174D1

公开(公告)日：2003-01-16

申请号：DE69625174

申请日：1996-06-17

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： YAMAGIWA MASAMICHI ,  NISHIOKA TAKAO ,  TAKEUCHI HISAO ,  YAMAKAWA AKIRA

IPC: F01L1/14 ,  F01L1/18 ,  C21D9/00 ,  C21D9/32 ,  C21D9/40

Abstract: An object of the present invention is to provide a sliding part having a crowning configuration by effecting surface hardening at a portion constituted by steel and a method for manufacturing the same part. The configuration and volume of crowning can be adjusted by heat treatment and processing after the surface hardening, and the sliding part is constituted by a single steel unit or includes at least one portion of a member forming a sliding surface formed into the crowning configuration through surface hardening is jointed to or fitted in a steel sliding part main body and made of ceramics.

公开(公告)号：DE69518501D1

公开(公告)日：2000-09-28

申请号：DE69518501

申请日：1995-09-20

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： TAKEUCHI HISAO ,  SOGABE KOICHI ,  NISHIOKA TAKAO ,  MATSUURA TAKASHI ,  YAMAKAWA AKIRA

IPC: B23K20/00 ,  B23K20/02 ,  C04B37/02

Abstract: A bonded body of aluminum and silicon nitride firmly bonded to each other which is produced economically, and a light-weight component having an excellent lubrication characteristic as a mechanical component of an internal combustion engine of an automobile. The bonded body includes a base consisting of aluminum as its principal component and a member comprising a silicon nitride sintered body bonded substantially directly to the base. A base material (2) in a powder or bulk form containing aluminum as the principal component and a member (1) comprising a silicon nitride sintered body are put into a mold and are heated under pressure to mutually bond them.

公开(公告)号：DE69402028T2

公开(公告)日：1997-08-07

申请号：DE69402028

申请日：1994-10-27

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： IZUMIDA HIROMU ,  MURABE KAORU ,  NISHIOKA TAKAO ,  YAMAKAWA AKIRA ,  MATSUNUMA KENJI

IPC: F01L1/04 ,  F01L1/047 ,  F01L1/14 ,  F01L1/16 ,  F01L1/20 ,  F02F7/00

Abstract: A combination of an adjusting shim and a cam used in a valve train in an internal combustion engine for automobiles, the adjusting shim composed of a ceramic material which sets the surface roughness of a sliding surface of the adjusting shim with respect to a cam to not more than 0.1 mu m in ten-point mean roughness Rz, and which contains not less than 60 vol.% of silicon nitride or sialon, and the cam composed of cast iron a surface of which is chill hardened and then provided with a phosphate film thereon. The combination of an adjusting shim and a cam is capable of smoothing a sliding surface of the cam by the break-in of the part even if the cam is not subjected to a super-precision finishing process; preventing the seizure and abnormal abrasion of sliding surfaces; stabilizing a smoothed condition of the sliding surfaces of the cam and shim for a long period of time; and providing excellent sliding characteristics of the sliding surfaces owing to a decrease in the friction coefficient thereof.

公开(公告)号：DE69402028D1

公开(公告)日：1997-04-17

申请号：DE69402028

申请日：1994-10-27

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： IZUMIDA HIROMU ,  MURABE KAORU ,  NISHIOKA TAKAO ,  YAMAKAWA AKIRA ,  MATSUNUMA KENJI

IPC: F01L1/04 ,  F01L1/047 ,  F01L1/14 ,  F01L1/16 ,  F01L1/20 ,  F02F7/00

Abstract: A combination of an adjusting shim and a cam used in a valve train in an internal combustion engine for automobiles, the adjusting shim composed of a ceramic material which sets the surface roughness of a sliding surface of the adjusting shim with respect to a cam to not more than 0.1 mu m in ten-point mean roughness Rz, and which contains not less than 60 vol.% of silicon nitride or sialon, and the cam composed of cast iron a surface of which is chill hardened and then provided with a phosphate film thereon. The combination of an adjusting shim and a cam is capable of smoothing a sliding surface of the cam by the break-in of the part even if the cam is not subjected to a super-precision finishing process; preventing the seizure and abnormal abrasion of sliding surfaces; stabilizing a smoothed condition of the sliding surfaces of the cam and shim for a long period of time; and providing excellent sliding characteristics of the sliding surfaces owing to a decrease in the friction coefficient thereof.

公开(公告)号：CA2078169C

公开(公告)日：1996-08-20

申请号：CA2078169

申请日：1992-09-14

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： YAMAMOTO TAKEHISA ,  NISHIOKA TAKAO ,  AWAZU TOMOYUKI ,  YAMAKAWA AKIRA

IPC: C04B35/584 ,  C04B35/593 ,  C04B35/597 ,  C04B35/58

Abstract: A silicon nitride sintered body comprising .alpha.silicon nitride including .alpha.'-sialon and .beta.'-sialon including .beta.-silicon nitride in which the content of the .alpha.-silicon nitride including .alpha.'-sialon in the surface part thereof is less than its content in the inner part thereof. The silicon nitride sintered body is excellent in mechanical strength at ordinary temperature, productivity and cost efficiency.

公开(公告)号：CA2073388C

公开(公告)日：1996-01-23

申请号：CA2073388

申请日：1992-07-08

Applicant: SUMITOMO ELECTRIC INDUSTRIES

Inventor： NISHIOKA TAKAO ,  MATSUNUMA KENJI ,  YAMAKAWA AKIRA

IPC: B24B1/00 ,  B24B7/22 ,  B24B19/22 ,  B24D3/00 ,  C04B35/584 ,  B28B11/08

Abstract: An industrially feasible method of grinding silicon nitride ceramics. The method provides a sufficiently smooth surface. Namely. the surface has a maximum heightroughness Rmax of 0.1 micron or less and a ten-point mean roughness Rmax of 0.05 micron. Further, with this method, surface damage can be repaired while grinding. The vertical cutting speed of a grinding wheel into a work should be within the range of 0.005 - 0.1 micron for each rotation of the working surface or the wheel and change linearly or stepwise. The horizontal machining speed should be within the range of 25 to 75 m/sec. With this arrangement, the contact pressure and grinding heat that generate between the work and the hard abrasive grains during grinding are combined. In other words. mechanical and thermal actions are combined.