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    Iron base sintered alloy with hard particle dispersion and method for producing same
    1.
    发明授权
    Iron base sintered alloy with hard particle dispersion and method for producing same 失效
    具有硬颗粒分散体的铁基烧结合金及其制造方法

    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。

    High-temperature wear-resistant sintered alloy
    5.
    发明授权
    High-temperature wear-resistant sintered alloy 失效
    高温耐磨烧结合金

    公开(公告)号：US5949003A

    公开(公告)日：1999-09-07

    申请号：US833195

    申请日：1997-04-14

    申请人： Yoshimasa Aoki ,  Kei Ishii ,  Koichiro Hayashi ,  Kouichi Aonuma ,  Hideaki Kawata ,  Kunio Maki ,  Atsushi Ehira ,  Akira Fujiki ,  Sadayuki Abo ,  Seigo Sato

    发明人： Yoshimasa Aoki ,  Kei Ishii ,  Koichiro Hayashi ,  Kouichi Aonuma ,  Hideaki Kawata ,  Kunio Maki ,  Atsushi Ehira ,  Akira Fujiki ,  Sadayuki Abo ,  Seigo Sato

    IPC分类号： C22C33/02 ,  C22C33/00

    CPC分类号： C22C33/0257

    摘要： The invention relates to a sintered alloy. This sintered alloy includes 3-13.4 wt % of W, 0.4-5.6 wt % or 0.8-5.9 wt % of V, 0.2-5.6 wt % of Cr, 0.1-0.6 wt % or 0.6-5.0 wt % of Si, 0.1-0.6 wt % or 0.2-1.0 wt % of Mn, 0.6-2.2 wt % of C, and a balance of Fe. The sintered alloy includes first and second phase which are distributed therein, in a form of spots, respectively. The second phase is in an amount of from 20 to 80 wt %, based on the total weight of the first and second phases. The first phase contains 3-7 wt % of W, 0.5-1.5 wt % of optional V, up to 1 wt % of Cr, 0.1-0.6 wt % or 0.6-5.0 wt % of Si, 0.1-0.6 wt % or 0.2-1.0 wt % of Mn, up to 2.2 wt % of C, and a balance of Fe. The second phase contains 3-15 wt % of W, 2-7 wt % of V, 1-7 wt % of Cr, 0.1-0.6 wt % or 0.6-5.0 wt % of Si, 0.1-0.6 wt % or 0.2-1.0 wt % of Mn, up to 2.2 wt % of C, and a balance of Fe. When the manganese contents of the first and second phases and the total of the sintered alloy are respectively in a range of from 0.2 to 1.0 wt %, sulfur is respectively contained therein in an amount of from 0.1 to 0.6 wt %. The sintered alloy has wear-resistant at high temperature and good compatibility without damaging mating part that is in contact with the sintered alloy.

    摘要翻译： 本发明涉及一种烧结合金。 该烧结合金包含3-13.4重量％的W，0.4-5.6重量％或0.8-5.9重量％的V，0.2-5.6重量％的Cr，0.1-0.6重量％或0.6-5.0重量％的Si，0.1- 0.6重量％或0.2-1.0重量％的Mn，0.6-2.2重量％的C，余量为Fe。 烧结合金包括分别以斑点形式分布在其中的第一相和第二相。 基于第一相和第二相的总重量，第二相的量为20〜80重量％。 第一相包含3-7重量％的W，0.5-1.5重量％的任选的V，至多1重量％的Cr，0.1-0.6重量％或0.6-5.0重量％的Si，0.1-0.6重量％或0.2 -1.0重量％的Mn，至多2.2重量％的C，余量为Fe。 第二相含有3-15重量％的W，2-7重量％的V，1-7重量％的Cr，0.1-0.6重量％或0.6-5.0重量％的Si，0.1-0.6重量％或0.2- 1.0重量％的Mn，至多2.2重量％的C，余量为Fe。 当第一相和第二相的锰含量和烧结合金的总量分别在0.2〜1.0重量％的范围内时，其中分别含有0.1〜0.6重量％的硫。 烧结合金在高温下具有耐磨性和良好的相容性，而不损害与烧结合金接触的配合部分。

    Sintered iron alloy resistant to abrasion at high temperature and method of manufacturing the same
    7.
    发明授权
    Sintered iron alloy resistant to abrasion at high temperature and method of manufacturing the same 失效
    耐高温磨损的烧结铁合金及其制造方法

    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。

    High temperature abrasion resistant copper alloy
    8.
    发明授权
    High temperature abrasion resistant copper alloy 失效
    高温耐磨铜合金

    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。

    Wear resistant iron-base sintered alloy
    9.
    发明授权
    Wear resistant iron-base sintered alloy 失效
    耐磨铁基烧结合金

    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。