公开(公告)号：US07070877B2

公开(公告)日：2006-07-04

申请号：US10405895

申请日：2003-04-02

申请人： Yoshikazu Morita ,  Shinichi Kamoshida ,  Takeshi Shimizu ,  Tsutomu Miyano ,  Keiji Izumi ,  Yuichi Yagami ,  Tsuyoshi Takahashi ,  Yoshiaki Kajikawa ,  Kouta Kodama

发明人： Yoshikazu Morita ,  Shinichi Kamoshida ,  Takeshi Shimizu ,  Tsutomu Miyano ,  Keiji Izumi ,  Yuichi Yagami ,  Tsuyoshi Takahashi ,  Yoshiaki Kajikawa ,  Kouta Kodama

IPC分类号： H01M2/00

CPC分类号： H01M8/021 ,  C23G1/081 ,  C25F3/06 ,  Y10T428/12993

摘要： A stainless steel separator, which is good of corrosion-resistance and low of contact-resistance, is proposed for a fuel cell. Its surface faced to a fuel electrode is pickled, which the other surface faced to an oxidizing electrode is roughened by electrolytic etching or the like. The roughening treatment may be performed before or after pickling and passivation. The roughened surface of the stainless steel separator without pickling or passivation may be faced to the oxidizing electrode.

公开(公告)号：US5858056A

公开(公告)日：1999-01-12

申请号：US616741

申请日：1996-03-15

申请人： Manabu Fujine ,  Yoshiaki Kajikawa ,  Minoru Yamashita ,  Koji Saito

发明人： Manabu Fujine ,  Yoshiaki Kajikawa ,  Minoru Yamashita ,  Koji Saito

IPC分类号： B22D19/00 ,  B22F3/24 ,  B22F3/26 ,  B22F5/00 ,  C22C1/10 ,  C22C33/02 ,  C22C38/00 ,  C22F1/00 ,  C22F1/04 ,  C22F1/06 ,  B22F3/12

CPC分类号： C22C33/0242 ,  C22C33/0285

摘要： A metal sintered body composite material which can exhibit superior seizure resistance even when light metal is softened, and a method for producing the same. The production method uses iron base raw material powder including C and one of Cr, Mo, V, W, Mn, and Si, and comprises the steps of forming and sintering a powder compressed article so as to obtain a porous metal sintered body having a space lattice structure having pores, impregnating the pores of the porous metal sintered body with an aluminum alloy and solidifying the aluminum alloy, applying aging treatment by heating and holding the composite material at an aging treatment temperature range, whereby a metal constituting the porous metal sintered body has a micro-Vickers hardness of 200 to 800.

摘要翻译： 即使在轻金属软化时也能表现出优异的耐发泡性的金属烧结体复合材料及其制造方法。 该制造方法使用包括C和Cr，Mo，V，W，Mn和Si中的一种的铁基原料粉末，并且包括以下步骤：形成和烧结粉末压缩制品，以获得多孔金属烧结体，其具有 具有孔的空间格子结构，用铝合金浸渍多孔金属烧结体的孔并固化铝合金，通过在时效处理温度范围加热和保持复合材料进行时效处理，由此构成多孔金属烧结的金属烧结 身体的维氏硬度为200〜800。

公开(公告)号：US4669367A

公开(公告)日：1987-06-02

申请号：US843626

申请日：1986-03-25

申请人： Atsuo Tanaka ,  Yoshiaki Kajikawa ,  Yorishige Maeda ,  Shiro Machida ,  Tadashi Dohnomoto

发明人： Atsuo Tanaka ,  Yoshiaki Kajikawa ,  Yorishige Maeda ,  Shiro Machida ,  Tadashi Dohnomoto

IPC分类号： F02B1/04 ,  F02F3/04 ,  F02F7/00 ,  F02F3/08 ,  F16J1/01

CPC分类号： F02F7/0085 ,  F02F3/042 ,  F02F7/0087 ,  F02B1/04 ,  F05C2201/021 ,  F05C2201/0448 ,  F05C2251/042 ,  F05C2253/16

摘要： A light metal alloy cast piston including a thermal strut (32, 48, 52) arranged in a shoulder portion of the piston skirt. The thermal strut is composed of an annular fiber-reinforced metal portion in which high-tensile-strength reinforcing fibers are integrally molded. The reinforcing fibers include first fibers (34), such as carbon fibers, having a coefficient of linear expansion substantially smaller than that of the matrix metal alloy, and second fibers (36), such as silicon carbide fibers and alumina fibers, having a flexural or bending strength larger than that of the first fibers. The first fibers primarily serve to restrain thermal expansion of the piston skirt and the second fibers, having a larger bending strength, act to protect the first fibers from excessive bending forces. In a preferred embodiment, the first fibers are located in the inner region of the thermal strut and the second fibers are arranged in the outer region.

摘要翻译： 一种轻金属合金铸造活塞，其包括布置在活塞裙部的肩部中的热支柱（32,48,52）。 热支柱由高强度增强纤维整体模制的环形纤维增强金属部分组成。 增强纤维包括具有比基体金属合金基本上小的线膨胀系数的第一纤维（34），例如碳纤维，以及具有挠曲的第二纤维（36），例如碳化硅纤维和氧化铝纤维 或弯曲强度大于第一纤维的弯曲强度。 主要用于抑制活塞裙部的热膨胀的第一纤维和具有较大弯曲强度的第二纤维用于保护第一纤维免受过度的弯曲力。 在优选实施例中，第一纤维位于热支柱的内部区域中，第二纤维布置在外部区域中。

公开(公告)号：US06358628B1

公开(公告)日：2002-03-19

申请号：US08220707

申请日：1994-03-31

申请人： Yoshiaki Kajikawa ,  Shinji Kato ,  Tetsuya Suganuma ,  Kaneo Hamajima

发明人： Yoshiaki Kajikawa ,  Shinji Kato ,  Tetsuya Suganuma ,  Kaneo Hamajima

IPC分类号： C22C4906

CPC分类号： C22C49/14 ,  C22C49/06 ,  F05C2201/021 ,  F16C33/121 ,  Y10T428/12458 ,  Y10T428/12486

摘要： A slide member is made of an aluminum alloy and compositely reinforced at its sliding surface by a reinforcing material. The reinforcing material is a mixture of alumina short fibers consisting of not less than 80 wt. % alumina and the remainder silica and having 5-60 wt. % alpha alumina content, and non-spherical mullite particles consisting of 40-86 wt. % alumina and the remainder silica and having 3-60 microns mean diameter. The volumetric percentages of the alumina short fibers and the mullite particles are 2-12% and 5-25%, respectively, on the basis of the volume of the reinforced portion.

摘要翻译： 滑动构件由铝合金制成，并通过增强材料在其滑动表面上复合地增强。 增强材料是由不小于80wt。％的氧化铝短纤维组成的混合物。 ％氧化铝，其余为二氧化硅，并具有5​​-60wt。 ％α氧化铝含量和由40-86重量％组成的非球形莫来石颗粒。 ％氧化铝，剩余的二氧化硅，平均直径为3-60微米。 基于增强部分的体积，氧化铝短纤维和莫来石颗粒的体积百分比分别为2-12％和5-25％。

公开(公告)号：US5236032A

公开(公告)日：1993-08-17

申请号：US802716

申请日：1991-12-06

申请人： Tetsuya Nukami ,  Tetsuya Suganuma ,  Atsuo Tanaka ,  Jun Ohkijima ,  Yoshiaki Kajikawa ,  Masahiro Kubo

发明人： Tetsuya Nukami ,  Tetsuya Suganuma ,  Atsuo Tanaka ,  Jun Ohkijima ,  Yoshiaki Kajikawa ,  Masahiro Kubo

IPC分类号： B22F3/26 ,  C22C49/06

CPC分类号： C22C49/06 ,  B22F3/26

摘要： A metal matrix composite material having uniformly dispersed intermetallic compounds and no micropores is manufactured by forming a porous preform including 60% to 80% by volume fine fragments essentially made of aluminum, 1% to 10% by volume fine fragments essentially made of nickel, copper or both, and 1% to 10% by volume fine fragments essentially made of titanium so that these fine fragments occupy in total 62% to 95% by volume of said preform, and at least a part of the preform is contacted with a melt of a matrix metal selected from aluminum, aluminum alloy, magnesium and magnesium alloy, so that the porous preform is infiltrated with the melt under no substantial application of pressure to the melt.

摘要翻译： 具有均匀分散的金属间化合物并且不具有微孔的金属基质复合材料通过形成基本上由铝制成的具有60％至80％（体积）的微细碎片，基本上由镍制成的1％至10％体积的细碎片，铜，铜 或两者，以及基本上由钛制成的1％至10％体积的细碎片，使得这些细碎片占所述预成型体的总体积的62％至95％体积，并且至少一部分预成型体与 选自铝，铝合金，镁和镁合金的基体金属，使得多孔预型体在基本上不施加压力的情况下被熔体渗透到熔体中。

公开(公告)号：US4804586A

公开(公告)日：1989-02-14

申请号：US38833

申请日：1987-04-15

申请人： Atsuo Tanaka ,  Tadashi Dohnomoto ,  Yoshiaki Kajikawa

发明人： Atsuo Tanaka ,  Tadashi Dohnomoto ,  Yoshiaki Kajikawa

IPC分类号： B22D19/14 ,  C22C47/00 ,  C22C47/08 ,  C22C47/12 ,  C22C49/14 ,  C22C1/09

CPC分类号： C22C49/14 ,  B22D19/14 ,  Y10T428/12465 ,  Y10T428/12486

摘要： In a method for making a carbon fiber reinforced material, a mass of carbon fibers, disposed in a closed loop configuration, and initially having a Young's modulus which is between about 23 ton/mm.sup.2 (23,000 kg/mm.sup.2) and about 35 ton/mm.sup.2 (35,000 kg/mm.sup.2), is embedded within a mass of matrix metal by a process which involves the mass of matrix metal being heated at least to its melting point. A composite material made by such a method is also disclosed. Preferably, the carbon fibers, before being thus embedded in the mass of matrix metal, should have a Young's modulus which is between about 23 ton/mm.sup.2 and about 30 ton/mm.sup.2. By the Young's modulus of the carbon fibers thus being relatively moderate, the occurrence of faults such as cracks and fissures in the resulting composite material is obviated, and the resulting composite material has good strength and other characteristics.