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43 条记录 (耗时 0.028 秒)

    Sintered ferro alloy having heat and wear resistance and process for making
    31.
    发明授权
    Sintered ferro alloy having heat and wear resistance and process for making 失效
    具有耐热和耐磨性的烧结铁合金和制造方法

    公开(公告)号：US4966626A

    公开(公告)日：1990-10-30

    申请号：US373053

    申请日：1989-06-28

    申请人： Akira Fujiki ,  Yoshiteru Yasuda ,  Hiroyuki Endo ,  Yutaka Ikenoue ,  Keitaro Suzuki

    发明人： Akira Fujiki ,  Yoshiteru Yasuda ,  Hiroyuki Endo ,  Yutaka Ikenoue ,  Keitaro Suzuki

    IPC分类号： C22C33/02 ,  C22C38/00 ,  C22C38/56 ,  F01L3/22 ,  F02F7/00

    CPC分类号： C22C33/0278 ,  C22C33/0292 ,  F01L3/22 ,  F02F7/0085

    摘要： A sintered ferro alloy comprises 5 to 25 wt % of one or two elements selected from Mo and W, 2 to 10 wt % of Cr, 0.1 to 0.9 wt % of Si, less than or equal to 0.7 wt % of Mn, less than or equal to 0.05 wt % of P, 0.5 to 2.0 wt % of C, 0.5 to 2.0 wt % of B, 0.1 to 7.0 wt % of at least one element selected from borides of La, Ce, Nd, Sm, Eu, Gd, Yb, Y or Sc, residual Fe, and contaminants. Also the alloy may comprise less than or equal to 20 wt % of at least one element selected from V, Nb, Ta, Ti, Zr, Hf, Co or Ni, if necessary. The alloy is produced by mixing the above mentioned components and pressurizing them in an Fe matrix, then sintering the pressurized mixture at 1150.degree. C. to 1260.degree. C. for 60 min. and reheating after sintering. This alloy has wear and heat resistance and can be utilized as valve seats for internal combustion engines in automotive vehicles.

    摘要翻译： 烧结铁合金包含5至25重量％的选自Mo和W的一种或两种元素，2至10重量％的Cr，0.1至0.9重量％的Si，小于或等于0.7重量％的Mn，小于 或0.05重量％的P，0.5〜2.0重量％的C，0.5〜2.0重量％的B，0.1〜7.0重量％的选自La，Ce，Nd，Sm，Eu，Gd中的至少一种元素 ，Yb，Y或Sc，残留的Fe和污染物。 此外，如果需要，合金可以包含小于或等于20重量％的至少一种选自V，Nb，Ta，Ti，Zr，Hf，Co或Ni的元素。 该合金通过混合上述组分并在Fe基体中加压制备，然后在1150℃至1260℃下将加压混合物烧结60分钟。 并在烧结后重新加热。 该合金具有耐磨性和耐热性，可用作汽车内燃机的阀座。

    Heat resistant and wear resistant iron-base sintered alloy
    32.
    发明授权
    Heat resistant and wear resistant iron-base sintered alloy 失效
    耐磨耐磨铁基烧结合金

    公开(公告)号：US4844024A

    公开(公告)日：1989-07-04

    申请号：US213868

    申请日：1988-06-30

    申请人： Akira Fujiki ,  Yoshiteru Yasuda ,  Ichiro Tanimoto ,  Hiroyuki Endo ,  Yutaka Ikenoue ,  Keitaro Suzuki

    发明人： Akira Fujiki ,  Yoshiteru Yasuda ,  Ichiro Tanimoto ,  Hiroyuki Endo ,  Yutaka Ikenoue ,  Keitaro Suzuki

    IPC分类号： C22C38/00 ,  C22C33/02 ,  C22C38/32 ,  F01L3/02 ,  F01L3/22

    CPC分类号： C22C33/0278 ,  C22C33/0292 ,  F01L3/02 ,  F01L3/22

    摘要： A heat resistant and wear resistant iron-base sintered alloy to be used as the material of a valve seat and a valve face of an engine valve and a waste gate valve of a turbocharger for an internal combustion engine. The iron-base sintered alloy consists essentially of at least one of molybdenum and tungsten, ranging from 3 to 25% by weight, chromium ranging from 1 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 2.5% by weight, boron ranging from 0.5 to 2.0% by weight, intermetallic compound of TiAl ranging from 0.3 to 20% by weight, and balance including iron and impurities. In the sintered alloy, carbide, boride and/or carbide boride and TiAl are uniformly dispersed in the matrix, thereby strengthening grain boundary.

    摘要翻译： 用作内燃机的涡轮增压器的发动机阀的阀座和阀面的阀面和废气闸阀的耐热耐磨铁基烧结合金。 铁基烧结合金基本上由钼和钨中的至少一种组成，范围为3至25重量％，铬为1至10重量％，硅为0.1至0.9重量％，锰不超过 0.7重量％以下的磷，0.05重量％以下的碳，0.1〜2.5重量％的碳，0.5〜2.0重量％的硼，TiAl的金属间化合物的0.3〜20重量％，以及 平衡包括铁和杂质。 在烧结合金中，碳化物，硼化物和/或碳化物硼化物和TiAl均匀分散在基体中，从而加强晶界。

    Sliding structure for automotive engine
    37.
    发明授权
    Sliding structure for automotive engine 失效
    汽车发动机滑动结构

    公开(公告)号：US07255083B2

    公开(公告)日：2007-08-14

    申请号：US11118360

    申请日：2005-05-02

    申请人： Takahiro Hamada ,  Yutaka Mabuchi ,  Makoto Kano ,  Yoshiteru Yasuda ,  Yusuke Okamoto

    发明人： Takahiro Hamada ,  Yutaka Mabuchi ,  Makoto Kano ,  Yoshiteru Yasuda ,  Yusuke Okamoto

    IPC分类号： B26D5/00

    CPC分类号： C23C14/0605 ,  F01L1/022 ,  F01L1/047 ,  F01L1/16 ,  F01L1/3442 ,  F01L2001/0476 ,  F01L2101/00 ,  F01L2820/01 ,  F01L2820/02 ,  F16C33/16 ,  F16G13/06 ,  F16J1/02 ,  F16J1/16 ,  F16J9/26

    摘要： A sliding structure for an automotive engine includes a sliding member with a sliding portion and a lubricant applied to the sliding portion so that the sliding portion can make sliding contact with a counterpart member via the lubricant. The sliding member is either of a piston ring, a piston pin, a cam lobe, a cam journal, a plain bearing, a rotary vane and a timing chain. The sliding portion has a base made of a steel or aluminum material and a hard carbon film formed on the base to coat the sliding portion. The hard carbon film has a thickness of 0.3 to 2.0 μm, a Knoop hardness of 1500 to 4500 kg/mm2, a surface roughness Ry (μm) satisfying the following equation: Ry

    摘要翻译： 用于汽车发动机的滑动结构包括具有滑动部分的滑动构件和施加到滑动部分的润滑剂，使得滑动部分可以经由润滑剂与对方构件滑动接触。 滑动构件是活塞环，活塞销，凸轮凸角，凸轮轴颈，滑动轴承，旋转叶片和正时链中的任一个。 滑动部分具有由钢或铝材料制成的基底和形成在基底上以涂覆滑动部分的硬碳膜。 硬碳膜的厚度为0.3〜2.0μm，Knoop硬度为1500〜4500kg / mm 2，表面粗糙度Ry（mum）满足下式：Ry <{（0.75〜 Hk / 8000）xh + 0.07 / 0.8}，其中h是膜的厚度（mum）; 并且H k是膜的努氏硬度（kg / mm 2）。