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6 条记录 (耗时 0.023 秒)

    Valve seat
    2.
    发明授权
    Valve seat 有权
    阀座

    公开(公告)号：US08844903B2

    公开(公告)日：2014-09-30

    申请号：US13580499

    申请日：2011-02-21

    申请人： Rintarou Takahashi ,  Hiroji Henmi

    发明人： Rintarou Takahashi ,  Hiroji Henmi

    IPC分类号： F16K25/00 ,  C22C33/02 ,  C22C38/12 ,  F01L3/02 ,  C22C38/02 ,  F01L3/22 ,  C22C27/04 ,  C22C38/16 ,  B22F1/00

    CPC分类号： F01L3/02 ,  B22F2001/0066 ,  C22C27/04 ,  C22C33/02 ,  C22C38/02 ,  C22C38/12 ,  C22C38/16 ,  F01L3/22 ,  F01L2101/00 ,  F01L2103/00

    摘要： In a valve seat made of an iron-based, composite sintered alloy having hard particles and a solid lubricant dispersed therein to have high wear resistance and good machinability, which is usable in high-power fuel direct injection engines with improved fuel efficiency and low emission, relatively coarse solid lubricant particles in such an amount as not to drastically reduce the strength of a sintered body are dispersed to provide self-lubrication, and as fine solid lubricant particles as not hindering the bonding of matrix particles are dispersed to improve machinability.

    摘要翻译： 在具有硬颗粒和分散在其中的固体润滑剂的铁基复合烧结合金的阀座中，具有高耐磨性和良好的机械加工性，可用于具有改善的燃料效率和低排放的大功率燃料直喷发动机 分散不大幅降低烧结体强度的相对粗的固体润滑剂颗粒被分散以提供自润滑，并且作为不妨碍基质颗粒的粘合的细固体润滑剂颗粒被分散以提高机械加工性。

    VALVE SEAT
    3.
    发明申请
    VALVE SEAT 有权
    阀座

    公开(公告)号：US20120319026A1

    公开(公告)日：2012-12-20

    申请号：US13580499

    申请日：2011-02-21

    申请人： Rintarou Takahashi ,  Hiroji Henmi

    发明人： Rintarou Takahashi ,  Hiroji Henmi

    IPC分类号： F16K1/42

    CPC分类号： F01L3/02 ,  B22F2001/0066 ,  C22C27/04 ,  C22C33/02 ,  C22C38/02 ,  C22C38/12 ,  C22C38/16 ,  F01L3/22 ,  F01L2101/00 ,  F01L2103/00

    摘要： In a valve seat made of an iron-based, composite sintered alloy having hard particles and a solid lubricant dispersed therein to have high wear resistance and good machinability, which is usable in high-power fuel direct injection engines with improved fuel efficiency and low emission, relatively coarse solid lubricant particles in such an amount as not to drastically reduce the strength of a sintered body are dispersed to provide self-lubrication, and as fine solid lubricant particles as not hindering the bonding of matrix particles are dispersed to improve machinability.

    摘要翻译： 在具有硬颗粒和分散在其中的固体润滑剂的铁基复合烧结合金的阀座中，具有高耐磨性和良好的机械加工性，可用于具有改善的燃料效率和低排放的大功率燃料直喷发动机 分散不大幅降低烧结体强度的相对粗的固体润滑剂颗粒被分散以提供自润滑，并且作为不妨碍基质颗粒的粘合的细固体润滑剂颗粒被分散以提高机械加工性。

    Iron-based sintered alloy with dispersed hard particles
    4.
    发明授权
    Iron-based sintered alloy with dispersed hard particles 失效
    具有分散硬质粒子的铁基烧结合金

    公开(公告)号：US07241327B2

    公开(公告)日：2007-07-10

    申请号：US11126568

    申请日：2005-05-10

    申请人： Hiroji Henmi ,  Akiyoshi Ishibashi

    发明人： Hiroji Henmi ,  Akiyoshi Ishibashi

    IPC分类号： B22F3/00

    CPC分类号： C22C38/44 ,  C22C32/0089 ,  C22C33/0207 ,  C22C33/0228 ,  C22C38/02 ,  C22C38/46 ,  C22C38/48

    摘要： An iron-based sintered alloy having improved thermal and mechanical strength is provided. The iron-based sintered alloy with dispersed hard particles comprises: a matrix comprising, by weight, 0.4 to 2% silicon (Si), 2 to 12% nickel (Ni), 3 to 12% molybdenum (Mo), 0.5 to 5% chromium (Cr), 0.6 to 4% vanadium (V), 0.1 to 3% niobium (Nb), 0.5 to 2% carbon (C), and the reminder of iron (Fe); and hard particles comprising 60 to 70% molybdenum (Mo), 0.3 to 1% boron (B), 0.1% or less carbon (C), and the reminder of iron (Fe). The hard particles are dispersed in the matrix in an amount in the range of 3 to 20% based on the entire alloy. They are sintered to produce the iron-based sintered alloy. Addition of boron into the ferromolybdenum hard particles enhances the wettability of the ferromolybdenum hard particles to prevent the hard particles from falling off the matrix. Thus, the adhesive property between the matrix and the hard particles is improved, thereby enhancing the thermal and mechanical strength of the iron-based sintered alloy.

    摘要翻译： 提供了具有改善的热和机械强度的铁基烧结合金。 具有分散的硬质颗粒的铁基烧结合金包括：基体，其包含重量比为0.4〜2％的硅（Si），2〜12％的镍（Ni），3〜12％的钼（Mo），0.5〜5％ 铬（Cr），0.6〜4％的钒（V），0.1〜3％的铌（Nb），0.5〜2％的碳（C）和铁（Fe）的提醒。 以及包含60〜70％的钼（Mo），0.3〜1％的硼（B），0.1％以下的碳（C）的硬质粒子和铁（Fe）的提醒。 基于整个合金，硬质粒子以3〜20％的范围分散在基质中。 将它们烧结以生产铁基烧结合金。 向铁钼硬质粒子中添加硼增强了钼硬质粒子的润湿性，防止了硬质粒子从基体上脱落。 因此，提高了基体和硬质粒子之间的粘合性，从而提高了铁基烧结合金的热和机械强度。

    Iron-based sintered alloy for use as valve seat and its production method
    5.
    发明授权
    Iron-based sintered alloy for use as valve seat and its production method 有权
    用作阀座的铁基烧结合金及其制造方法

    公开(公告)号：US06802883B2

    公开(公告)日：2004-10-12

    申请号：US10383870

    申请日：2003-03-10

    申请人： Hiroji Henmi ,  Akiyoshi Ishibashi

    发明人： Hiroji Henmi ,  Akiyoshi Ishibashi

    IPC分类号： C22C3302

    CPC分类号： C22C33/0257 ,  B22F2998/10 ,  C22C33/0207 ,  B22F1/0059 ,  B22F3/02 ,  B22F3/10

    摘要： An iron-based sintered alloy, which consists of from 0.5 to 5% of Ni, from 0.5 to 4% of Cr, from 0.5 to 2% of C, the balance being Fe and unavoidable impurities, and which has a micro-structure comprising an iron-based matrix containing Ni and a part of Cr as solutes and carbides containing the other part of Cr and dispersed in the matrix. The iron-based sintered alloy is appropriate for use as a valve seat of an internal combustion engine. Wear resistance is maintained at a moderate level while the additive amount of alloying elements is decreased to attain low cost.

    摘要翻译： 一种铁基烧结合金，其由0.5％至5％的Ni，0.5至4％的Cr，0.5至2％的C，余量为Fe和不可避免的杂质组成，并且具有微结构，其包含 含有Ni和作为溶质的Cr的一部分的铁基，含有Cr的另一部分并分散在基体中的碳化物。 铁基烧结合金适用于内燃机的阀座。 耐磨性维持在中等水平，同时减少合金元素的添加量以获得低成本。

    Iron-based sintered alloy with dispersed hard particles
    6.
    发明申请
    Iron-based sintered alloy with dispersed hard particles 失效
    具有分散硬质粒子的铁基烧结合金

    公开(公告)号：US20050252338A1

    公开(公告)日：2005-11-17

    申请号：US11126568

    申请日：2005-05-10

    申请人： Hiroji Henmi ,  Akiyoshi Ishibashi

    发明人： Hiroji Henmi ,  Akiyoshi Ishibashi

    IPC分类号： B22F3/12 ,  C22C29/00 ,  C22C32/00 ,  C22C33/02 ,  C22C38/00 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/56

    CPC分类号： C22C38/44 ,  C22C32/0089 ,  C22C33/0207 ,  C22C33/0228 ,  C22C38/02 ,  C22C38/46 ,  C22C38/48

    摘要： An iron-based sintered alloy having improved thermal and mechanical strength is provided. The iron-based sintered alloy with dispersed hard particles comprises: a matrix comprising, by weight, 0.4 to 2% silicon (Si), 2 to 12% nickel (Ni), 3 to 12% molybdenum (Mo), 0.5 to 5% chromium (Cr), 0.6 to 4% vanadium (V), 0.1 to 3% niobium (Nb), 0.5 to 2% carbon (C), and the reminder of iron (Fe); and hard particles comprising 60 to 70% molybdenum (Mo), 0.3 to 1% boron (B), 0.1% or less carbon (C), and the reminder of iron (Fe). The hard particles are dispersed in the matrix in an amount in the range of 3 to 20% based on the entire alloy. They are sintered to produce the iron-based sintered alloy. Addition of boron into the ferromolybdenum hard particles enhances the wettability of the ferromolybdenum hard particles to prevent the hard particles from falling off the matrix. Thus, the adhesive property between the matrix and the hard particles is improved, thereby enhancing the thermal and mechanical strength of the iron-based sintered alloy.

    摘要翻译： 提供了具有改善的热和机械强度的铁基烧结合金。 具有分散的硬质颗粒的铁基烧结合金包括：基体，其包含重量比为0.4〜2％的硅（Si），2〜12％的镍（Ni），3〜12％的钼（Mo），0.5〜5％ 铬（Cr），0.6〜4％的钒（V），0.1〜3％的铌（Nb），0.5〜2％的碳（C）和铁（Fe）的提醒。 以及包含60〜70％的钼（Mo），0.3〜1％的硼（B），0.1％以下的碳（C）的硬质粒子和铁（Fe）的提醒。 基于整个合金，硬质粒子以3〜20％的范围分散在基质中。 将它们烧结以生产铁基烧结合金。 向铁钼硬质粒子中添加硼增强了钼硬质粒子的润湿性，防止了硬质粒子从基体上脱落。 因此，提高了基体和硬质粒子之间的粘合性，从而提高了铁基烧结合金的热和机械强度。