公开(公告)号：US5080713A

公开(公告)日：1992-01-14

申请号：US338167

申请日：1989-04-14

申请人： Akiyoshi Ishibashi ,  Kazutoshi Takemura ,  Makoto Abe ,  Akira Fujiki ,  Kimitsugu Kiso ,  Takaaki Ito

发明人： Akiyoshi Ishibashi ,  Kazutoshi Takemura ,  Makoto Abe ,  Akira Fujiki ,  Kimitsugu Kiso ,  Takaaki Ito

IPC分类号： C22C33/02 ,  C22C38/00 ,  C22C38/56 ,  F02F7/00

CPC分类号： C22C33/0264 ,  C22C33/0207 ,  F02F7/0085

摘要： A material for valve seats comprising a wear resisting sintered ferro alloy formed by dispersing particles of a high speed steel in a matrix in which hard alloy particles are dispersed. Steps for forming include mixing particles of a matrix material, carbide material and a hard alloy, and blending the mixture with high speed steel particles, pressurizing and compacting the mixture after blending, then sintering them at 1000.degree. to 1200.degree. C. In the preferred method, at least one element of Fe, C, Ni, Co, Si or Mn is included as the matrix material, and at least one element of Fe, Cr, Mo or V as the carbide material and at least one element of Fe, Cr, Mo, Co, C or W as the hard alloy are prepared. Furthermore, the ferro alloy preferably includes the following amounts of the above mentioned elements, 0.5 to 2.0 wt % of C, 1 to 25 wt % of one or more of Cr, Mo, V, or W and 1 to 15 wt % of one or more of Co, Ni, Mn, or Si.

公开(公告)号：US5158601A

公开(公告)日：1992-10-27

申请号：US831925

申请日：1992-02-06

申请人： Akira Fujiki ,  Kenzo Morita ,  Akiyoshi Ishibashi ,  Kazutoshi Takemura

发明人： Akira Fujiki ,  Kenzo Morita ,  Akiyoshi Ishibashi ,  Kazutoshi Takemura

IPC分类号： B22F1/02 ,  C22C33/02 ,  C22C38/00 ,  C22C38/16

CPC分类号： B22F1/025 ,  C22C33/0257

摘要： In a method for producing by a powder-metallurgical method a wear-resistant iron-based sintered alloy, which essentially consists of from 0.3 to 2.5% by weight of C, from 1 to 8% of Cu, from 3 to 14% of at least one element selected from the group consisting of Cr, Mo, W, V, Nb, and Ta, and Fe and the unavoidable impurities in balance, and which has a micro-structure such that a majority of the alloying elements are uniformly dissolved as solutes of the iron matrix and fine Cu phase is uniformly dispersed, a composite powder which consists of iron or iron alloy and Cu which is present mainly on the surface of the composite powder is used in the raw-material powder.

公开(公告)号：US5859376A

公开(公告)日：1999-01-12

申请号：US787232

申请日：1997-01-22

申请人： Akiyoshi Ishibashi ,  Tomonori Miyazawa ,  Kunio Maki ,  Akira Fujiki

发明人： Akiyoshi Ishibashi ,  Tomonori Miyazawa ,  Kunio Maki ,  Akira Fujiki

IPC分类号： C22C33/02 ,  C22C38/00 ,  C22C38/52 ,  B22F3/12

CPC分类号： C22C33/0292 ,  C22C33/0207 ,  C22C33/0257

摘要： An iron base sintered alloy with dispersed hard particles is provided which comprises by weight 3 to 15% nickel (Ni), 0.5 to 5% chromium (Cr), 0.5 to 2.0% carbon (C), the remainder iron (Fe) and unavoidable impurities. At least a part of nickel (Ni), molybdenum (Mo) and chromium (Cr) is contained in solid solution of an iron base matrix. At least a part of molybdenum (Mo) and chromium (Cr) is dispersed within the iron base matrix to form fine carbides or intermetallic compounds thereof. Uniformly dispersed within the iron base matrix are hard particles of 3 to 20% contain 50 to 57% chromium (Cr), 18 to 22% molybdenum (Mo), 8 to 12% cobalt (Co), 0.1 to 1.4% carbon (C), 0.8 to 1.3% silicon (Si) and the remainder iron (Fe) to strengthen the dispersion and remarkably improve wear resistance.

摘要翻译： 提供了一种具有分散的硬质颗粒的铁基烧结合金，其包含重量为3至15％的镍（Ni），0.5至5％的铬（Cr），0.5至2.0％的碳（C），剩余的铁（Fe）和不可避免的 杂质。 在铁基基质的固溶体中含有镍（Ni），钼（Mo）和铬（Cr）的至少一部分。 钼（Mo）和铬（Cr）的至少一部分分散在铁基质基质中以形成细小的碳化物或金属间化合物。 均匀分散在铁基基质中，3〜20％的硬质粒子含有50〜57％的铬（Cr），18〜22％的钼（Mo），8〜12％的钴（Co），0.1〜1.4％的碳（C ），0.8〜1.3％的硅（Si），余量为铁（Fe），以增强分散性，显着提高耐磨性。

公开(公告)号：US4919719A

公开(公告)日：1990-04-24

申请号：US237038

申请日：1988-08-29

申请人： Makoto Abe ,  Ichiro Tanimoto ,  Akira Fujiki ,  Keitaro Suzuki ,  Hiroyuki Endo ,  Yutaka Ikenoue

发明人： Makoto Abe ,  Ichiro Tanimoto ,  Akira Fujiki ,  Keitaro Suzuki ,  Hiroyuki Endo ,  Yutaka Ikenoue

IPC分类号： C22C33/02 ,  C22C38/00 ,  C22C38/12 ,  C22C38/44 ,  F01L3/04 ,  F02B1/04

CPC分类号： F01L3/04 ,  C22C33/0285 ,  F02B1/04

摘要： A high temperature wear resistant sintered alloy suitable for the material of a valve seat in an automotive vehicle engine. The matrix of the sintered alloy consists essentially of carbon ranging from 0.45 to 1.15% by weight, nickel ranging from 5.4 to 27% by weight, molybdenum ranging form 0.4 to 2.7% by weight, cobalt ranging from 4.2 to 7.2% by weight and balance being substantially iron. The matrix is formed of a mixture of at least one of sorbite structure and bainite structure and austenite structure. Furthermore, the matrix includes hard phase dispersed therein and containing at least silicon, molybdenum and cobalt. The sintered alloy of such a structure can exhibit high strength and wear resistance at high temperatures regardless of type of engine and kind of fuel in case of being used as the material of the valve seat, while maintaining production cost thereof lower.

摘要翻译： 适用于汽车发动机的阀座材料的高温耐磨烧结合金。 烧结合金的基体主要由碳组成，其重量范围为0.45-1.15重量％，镍含量为5.4至27重量％，钼范围为0.4至2.7重量％，钴为4.2至7.2重量％，余量为 基本上是铁的。 该基质由索氏体结构和贝氏体组织中的至少一种与奥氏体组织的混合物形成。 此外，基质包括分散在其中的硬相，并且至少含有硅，钼和钴。 这种结构的烧结合金在用作阀座的材料的情况下，不管发动机和燃料种类如何，在高温下都能表现出高的强度和耐磨性，同时保持其生产成本更低。

公开(公告)号：US4933008A

公开(公告)日：1990-06-12

申请号：US305910

申请日：1989-02-03

申请人： Akira Fujiki ,  Yoshiteru Yasuda ,  Makoto Abe

发明人： Akira Fujiki ,  Yoshiteru Yasuda ,  Makoto Abe

IPC分类号： C22C32/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/14 ,  F02F7/00

CPC分类号： F02F7/0085 ,  C22C32/0078 ,  C22C33/0207 ,  C22C33/0285 ,  F05C2201/0436

摘要： A heat resistant and wear resistant iron-based sintered alloy for use as the material of an engine component part which is subjected to severe temperature and wear conditions. The iron-based sintered alloy is comprised of a matrix formed of metal powder having the composition of alloy steel or high speed tool steel. An additional metal component formed of hard alloy powder is dispersed in the matrix in an amount ranging from 3 to 50% by weight of the matrix. The hard alloy powder contains as major components iron, molybdenum and silicon which improve the wetting property of the hard alloy powder with the matrix and form intermetallic compounds which are high in hardness and excellent in heat and oxidation resistances.

摘要翻译： 一种耐热耐磨铁基烧结合金，用作发动机部件的材料，经受严酷的温度和磨损条件。 铁基烧结合金由具有合金钢或高速工具钢组成的金属粉末形成的基体构成。 由硬质合金粉末形成的另外的金属组分以基质的3至50重量％的量分散在基质中。 硬质合金粉末以铁，钼，硅为主要成分，提高硬质合金粉末与基质的润湿性，形成硬度高，耐热和耐氧化性优异的金属间化合物。

公开(公告)号：US07981572B2

公开(公告)日：2011-07-19

申请号：US10579907

申请日：2004-10-28

申请人： Akira Fujiki ,  Yukihiro Maekawa ,  Takeharu Kuramochi ,  Masahiko Katsu ,  Takayuki Hirao ,  Takeshi Shimizu ,  Masanori Iwamoto ,  Sadao Miki ,  Haruhiko Suzuki ,  Yoshiki Muto ,  Kaoru Eguchi ,  Masahiro Omata ,  Hiroshi Saitou

发明人： Akira Fujiki ,  Yukihiro Maekawa ,  Takeharu Kuramochi ,  Masahiko Katsu ,  Takayuki Hirao ,  Takeshi Shimizu ,  Masanori Iwamoto ,  Sadao Miki ,  Haruhiko Suzuki ,  Yoshiki Muto ,  Kaoru Eguchi ,  Masahiro Omata ,  Hiroshi Saitou

IPC分类号： H01M8/00 ,  H01M8/10

CPC分类号： H01M8/248 ,  H01M8/0271 ,  H01M8/1007 ,  H01M8/241 ,  H01M8/242 ,  H01M8/2457 ,  H01M8/2475 ,  Y02P70/56 ,  Y10T29/49108 ,  Y10T29/4911 ,  Y10T29/53135 ,  Y10T29/5317 ,  Y10T29/53252

摘要： Separators (5A, 5B, 6) and membrane-electrode assemblies (2) of a fuel cell stack (1) are alternately stacked in a guide box (40). The separators (5A, 5B, 6) each have groove-like gas paths (10A, 10B). Powder of an adhesive agent (7) is adhered in advance to the surfaces of the separators (5A, 5B, 6), except the gas paths (10A, 10B), through photosensitive drums (31A, 31B) to which the powder is adsorbed in a given pattern. The separators (5A, 5B, 6) and the membrane-electrode assemblies (2), stacked in the guide box (40), are heated and compressed by a press (43) and heaters (40C) to obtain a unitized fuel cell stack (1).

摘要翻译： 燃料电池堆（1）的分离器（5A，5B，6）和膜 - 电极组件（2）交替堆叠在引导箱（40）中。 分离器（5A，5B，6）各自具有槽状气体通路（10A，10B）。 通过吸附有粉末的感光鼓（31A，31B），除了气体路径（10A，10B）之外，预先将粘合剂（7）的粉末粘附到隔板（5A，5B，6）的表面。 在给定的模式。 堆叠在引导箱（40）中的隔板（5A，5B，6）和膜 - 电极组件（2）通过压力机（43）和加热器（40C）被加热和压缩，以获得单元化的燃料电池堆 （1）。

公开(公告)号：US5529602A

公开(公告)日：1996-06-25

申请号：US392183

申请日：1995-02-22

申请人： Kei Ishii ,  Yoshimasa Aoki ,  Hideaki Kawata ,  Akira Fujiki ,  Katsuyuki Nakamura ,  Kazuhiko Takahashi

发明人： Kei Ishii ,  Yoshimasa Aoki ,  Hideaki Kawata ,  Akira Fujiki ,  Katsuyuki Nakamura ,  Kazuhiko Takahashi

IPC分类号： C22C33/02 ,  C22C38/00 ,  C22C38/60 ,  F01L3/04 ,  F02B1/04 ,  F02B3/06 ,  C22C29/00

CPC分类号： F01L3/04 ,  C22C33/0207 ,  C22C33/0285 ,  F02B1/04 ,  F02B2275/18 ,  F02B3/06 ,  Y10T428/12042

摘要： Disclosed is a sintered iron alloy and a method of manufacturing the same. The sintered alloy comprises: an alloy matrix and a lead phase for imparting lubricability to the sintered alloy. The alloy matrix comprises a first alloy phase being composed of 0.5 to 3% nickel by weight, 0.5 to 3% molybdenum by weight, 5.5 to 7.5% cobalt by weight, 0.6 to 1.2% carbon by weight, and the balance iron, and a second alloy phase being composed of 26 to 30% molybdenum by weight, 7 to 9% chromium by weight, 1.5 to 2.5% silicon by weight, and the balance cobalt. The content of the lead phase in the sintered alloy is not more than 3.5% by weight. The lead phase is dispersed in the alloy matrix and a pore which is formed in the alloy matrix. The ratio of the lead dispersed in the alloy matrix to the total lead phase is 60% by weight or more, and the lead phase dispersed in the alloy matrix is particles in which the maximum particle size is 10 .mu.m or less. In manufacture, a lead powder having a particle size of approximately 50 .mu.m or less is mixed a first raw material powder for the first alloy phase and a second raw material powder for the second alloy phase at a lead content of not more than 3.5% by weight. After compacting and sintering the mixture, the sintered compact is cooled so that the temperature of the compact in the vicinity of 328.degree. C. is cooled at a cooling rate of approximately 2.degree. C./min. or more.

摘要翻译： 公开了一种烧结铁合金及其制造方法。 烧结合金包括：赋予烧结合金润滑性的合金基体和铅相。 该合金基体包括第一合金相，其由0.5-3重量％的镍，0.5-3重量％的钼，5.5-7.5重量％的碳，0.6-1.2重量％的碳和余量的铁组成， 第二合金相由26〜30重量％的钼，7〜9重量％的铬，1.5〜2.5重量％的硅和余量的钴组成。 烧结合金中铅相的含量不超过3.5重量％。 铅相分散在合金基体中，并形成在合金基体中的孔。 分散在合金基体中的铅与总铅相的比例为60重量％以上，分散在合金基体中的铅相是最大粒径为10μm以下的粒子。 在制造时，将粒径约为50μm以下的铅粉末，以不超过3.5％的铅含量混合第一合金相的第一原料粉末和第二合金相的第二原料粉末， 重量。 压实烧结混合物后，将烧结体冷却至328℃附近的压坯温度以约2℃/分钟的冷却速度冷却。 或者更多。

公开(公告)号：US5468310A

公开(公告)日：1995-11-21

申请号：US189780

申请日：1994-02-01

申请人： Akira Fujiki ,  Makoto Kano

发明人： Akira Fujiki ,  Makoto Kano

IPC分类号： B32B15/01 ,  B32B15/04 ,  B32B15/20 ,  C22C9/01

CPC分类号： C22C9/01 ,  Y10T428/12486 ,  Y10T428/12493 ,  Y10T428/12743 ,  Y10T428/1275 ,  Y10T428/12764

摘要： A high temperature abrasion resistant copper alloy suitable for the material of engine parts such as valve seats and valve guides. The copper alloy comprising aluminum in an amount ranging from 1.0 to 15.0% by weight; at least one element selected from the group consisting of vanadium, niobium and tantalum in the group Va of the periodic table of elements, in an amount ranging from 0.1 to 5.0% by weight; and balance containing copper and impurities. The copper alloy has a structure in which at least one of intermetallic compounds is dispersed. each intermetallic compound contains at least one metal selected from the group consisting of aluminum and copper and at least one element selected from the group consisting of elements of the group Va of the periodic table. This copper alloy exhibits also high oxidation resistance and corrosion resistance at high temperatures.

摘要翻译： 适用于发动机部件如阀座和阀导轨的材料的高温耐磨铜合金。 所述铜合金包含1.0至15.0重量％的量的铝; 选自元素周期表第Va族中的钒，铌和钽中的至少一种元素，其量为0.1至5.0重量％; 和含有铜和杂质的平衡物。 铜合金具有其中分散有至少一种金属间化合物的结构。 每个金属间化合物含有选自铝和铜中的至少一种金属和选自元素周期表第Va族元素中的至少一种元素。 该铜合金在高温下表现出较高的抗氧化性和耐腐蚀性。

公开(公告)号：US4778522A

公开(公告)日：1988-10-18

申请号：US23631

申请日：1987-03-09

申请人： Yoshihiro Maki ,  Makoto Kano ,  Akira Fujiki ,  Ichiro Tanimoto ,  Hiroyuki Endo ,  Yukata Ikenoue ,  Kei Ishii

发明人： Yoshihiro Maki ,  Makoto Kano ,  Akira Fujiki ,  Ichiro Tanimoto ,  Hiroyuki Endo ,  Yukata Ikenoue ,  Kei Ishii

IPC分类号： C22C38/00 ,  C22C33/02 ,  C22C38/52 ,  C22C29/06 ,  C22C29/08

CPC分类号： C22C33/0278

摘要： A wear resistant iron-base sintered alloy consists essentially of at least one selected from the group consisting of molybdenum and tungsten, ranging from 5 to 20% by weight, chromium ranging from 2 to 10% by weight, silicon ranging from 0.1 to 0.9% by weight, manganese ranging not more than 0.7% by weight, phosphorus ranging not more than 0.05% by weight, carbon ranging from 0.1 to 0.8% by weight, boron ranging from 0.5 to 2.0% by weight, and balance including iron and an impurity, so that fine multiple carbide, multiple boride, and/or multiple carbide-boride can be homogeneously dispersed as hard grains in the structure of a matrix, thereby exhibiting excellent wear resistance, scuffing resistance and pitting resistance.

摘要翻译： 耐磨铁基烧结合金主要由选自钼和钨组成的组中的至少一种组成，其范围为5-20重量％，2-10重量％的铬，0.1-0.9重量％的硅， 的锰，不超过0.7重量％，磷不超过0.05重量％，碳为0.1〜0.8重量％，硼为0.5〜2.0重量％，余量为铁和杂质 ，使得多个碳化物，多重硼化物和/或多个碳化物 - 硼化物能够在基体的结构中均匀地分散成硬质颗粒，从而表现出优异的耐磨性，耐擦伤性和耐点蚀性。

公开(公告)号：US07041149B2

公开(公告)日：2006-05-09

申请号：US10885023

申请日：2004-07-07

申请人： Akira Fujiki ,  Yukihiro Maekawa ,  Yutaka Mabuchi ,  Takashi Murata ,  Takashi Suzuki ,  Jyun-ichi Yamada ,  Tadayuki Tsutsui ,  Kei Ishii

发明人： Akira Fujiki ,  Yukihiro Maekawa ,  Yutaka Mabuchi ,  Takashi Murata ,  Takashi Suzuki ,  Jyun-ichi Yamada ,  Tadayuki Tsutsui ,  Kei Ishii

IPC分类号： B22F5/08 ,  C22C33/02

CPC分类号： C22C33/0264 ,  B22F5/08 ,  B22F2003/145 ,  B22F2003/241 ,  B22F2003/248 ,  B22F2998/10 ,  F01L1/022 ,  F01L2101/00 ,  F01L2103/00 ,  F16H55/06 ,  F16H55/30 ,  B22F3/02 ,  B22F3/10 ,  B22F3/18 ,  B22F3/24

摘要： A sintered sprocket has a high overall density and excellent contact pressure resistance. The sprocket is produced from a sintered alloy selected from the following alloys ((1) to (3)), is densified to have a relative density of 95% or higher in the surface layer of the gear teeth by forming by rolling, having a surface hardness of 700 HV or higher, and is useful for a crankshaft, a cam shaft, a balancer shaft, or a water pump shaft of an internal combustion engine: (1) an Fe—Mo—C based sintered alloy containing Mo at 1.0 to 2.0% by mass; (2) an Fe—Mo—Ni—C based sintered alloy containing Mo at more than 1.0 and not more than 2.0% by mass, and Ni at more than 1.0 and not more than 2.5% by mass, or (3) an Fe—Mo—Ni—Cu—C based sintered alloy containing Mo at 0.3 to 1.0% by mass, Ni at not less than 1.5 to less than 3.0% by mass, and Cu at 1.0 to 2.5% by mass.

摘要翻译： 烧结链轮具有高的总体密度和优异的耐接触压力。 链轮由选自以下合金（（1）〜（3））的烧结合金制成，通过轧制成形来致密化，齿轮齿表面层的相对密度为95％以上，具有 表面硬度为700HV以上，可用于内燃机的曲轴，凸轮轴，平衡轴或水泵轴：（1）含有Mo为1.0的Fe-Mo-C系烧结合金 至2.0质量％ （2）含有大于1.0且不大于2.0质量％的Mo的Ni-Fe-Mo-Ni-C系烧结合金，Ni大于1.0质量％以上且2.5质量％以下的Fe， -Mo-Ni-Cu-C系烧结合金，其含有0.3〜1.0质量％的Mo，不小于1.5质量％以上且小于3.0质量％的Ni，1.0〜2.5质量％的Cu。