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    Aluminum alloy cylinder head with valve seat formed integrally by copper alloy cladding layer and underlying alloy layer
    3.
    发明授权
    Aluminum alloy cylinder head with valve seat formed integrally by copper alloy cladding layer and underlying alloy layer 失效
    带有阀座的铝合金气缸盖由铜合金包覆层和下层合金层一体形成

    公开(公告)号：US4723518A

    公开(公告)日：1988-02-09

    申请号：US944850

    申请日：1986-12-22

    申请人： Minoru Kawasaki ,  Kazuhiko Mori ,  Soya Takagi ,  Katsuhiko Ueda

    发明人： Minoru Kawasaki ,  Kazuhiko Mori ,  Soya Takagi ,  Katsuhiko Ueda

    IPC分类号： F01L3/02 ,  F01L3/22 ,  F02B77/02 ,  F02F1/24 ,  F02F1/38

    CPC分类号： F02B77/02 ,  F01L3/22 ,  F02F1/38 ,  F02F2001/245 ,  F05C2201/021

    摘要： This internal combustion engine cylinder head includes a main portion made substantially from aluminum alloy and having a valve port which has a circumferential valve seat surface for cooperation with a poppet valve to open and close communication through the valve port. A cladding layer is formed of copper alloy claddingly laid upon this valve seat surface, and an intermediate alloy layer is present between the copper alloy cladding layer and the main cylinder head portion, this intermediate alloy layer being composed essentially of an alloy between the aluminum alloy of the main cylinder head portion and the copper alloy of the cladding layer. Thereby, the anti-wear properties of the valve seat are desirably improved without making the fabrication process unduly troublesome or costly. The proportion of aluminum diffused into the copper alloy cladding layer from the main portion of the cylinder head should preferably be not more than about 15%. The thickness of the intermediate alloy layer should preferably be between about 5 microns and about 300 microns, and the thickness of the copper alloy cladding layer should preferably be at least about 50 microns. If "x" denotes the thickness of the intermediate alloy layer in microns, this thickness value being between about 5 and about 300, and if "y" denotes the thickness of the copper alloy cladding layer in mm, then preferably the relationship y=1.5254x+42.373 should at least approximately hold.

    摘要翻译： 该内燃机气缸盖包括主要由铝合金制成的主体部分，并且具有阀口，该阀口具有用于与提升阀配合的周向阀座表面，以通过阀口打开和关闭连通。 包层由铜合金层叠地形成在该阀座面上，中间合金层存在于铜合金覆层和主汽缸头部之间，该中间合金层主要由铝合金 的主缸盖部分和包层的铜合金。 因此，期望地提高了阀座的抗磨损性能，而不会使制造工艺过于麻烦或昂贵。 从汽缸盖的主要部分扩散到铜合金包覆层中的铝的比例应优选不大于约15％。 中间合金层的厚度应优选在约5微米至约300微米之间，并且铜合金包覆层的厚度应优选为至少约50微米。 如果“x”表示中间合金层的厚度，以微米计，该厚度值在约5至约300之间，如果“y”表示铜合金包覆层的厚度，以mm为单位，则优选关系y = 1.5254 x + 42.373应至少大约持有。

    Dispersion strengthened copper-base alloy
    4.
    发明授权
    Dispersion strengthened copper-base alloy 失效
    分散强化铜基合金

    公开(公告)号：US4818307A

    公开(公告)日：1989-04-04

    申请号：US133620

    申请日：1987-12-16

    申请人： Kazuhiko Mori ,  Katsuhiko Ueda ,  Soya Takagi ,  Minoru Kawasaki

    发明人： Kazuhiko Mori ,  Katsuhiko Ueda ,  Soya Takagi ,  Minoru Kawasaki

    IPC分类号： C22C9/06 ,  B23K35/30 ,  C22C9/00 ,  C22C32/00 ,  C23C24/10 ,  C22C9/02

    CPC分类号： C23C24/103 ,  B23K35/302 ,  C22C32/0078 ,  Y10T428/12486

    摘要： Herein disclosed is a dispersion strengthened copper-base alloy having an excellent wear resistance, which alloy contains 5 to 30% (in weight) of nickel, 1 to 5% of silicon, 0.5 to 3% of boron and 4 to 30% of iron, the remainder being copper and unavoidable impurities, and having a structure in which hard particles composed chiefly of a silicide of iron-nickel system are dispersed in a copper-base matrix. The copper-base alloy is suitably cladded (or deposited) locally on a metallic base. The alloy may contain at least one of 0.1 to 5% of aluminum, 0.1 to 5% of Ti and 1 to 10% of Mn, if necessary, in addition to the above specified components. If necessary, 0.02 to 2% of carbon and 0.5 to 10% of chromium and/or 0.3 to 5% of titanium may be further added. Then, the structure is modified such that both the particles composed chiefly of the iron-nickel silicide and carbide particles are coexistently dispersed in the copper-base matrix.

    摘要翻译： 本文公开了具有优异耐磨性的分散强化铜基合金，该合金含有镍的5〜30重量％（重量），硅的1〜5％，硼的0.5〜3％，铁的4〜30％ 其余为铜和不可避免的杂质，并且具有其中主要由铁 - 镍系统的硅化物组成的硬颗粒分散在铜基体中的结构。 铜基合金适当地在金属基底上包层（或沉积）。 如果需要，除了上述规定的成分之外，合金还可含有0.1〜5％的铝，0.1〜5％的Ti和1〜10％的Mn中的至少1种。 如果需要，可以进一步加入0.02〜2％的碳和0.5〜10％的铬和/或0.3〜5％的钛。 然后，对该结构进行改性，使得主要由铁 - 镍硅化物和碳化物颗粒组成的颗粒两者共同分散在铜基体中。

    Method for forming alloy layer upon aluminum alloy substrate by irradiating with a CO.sub.2 laser, on substrate surface, alloy powder containing substance for alloying and silicon or bismuth
    8.
    发明授权
    Method for forming alloy layer upon aluminum alloy substrate by irradiating with a CO.sub.2 laser, on substrate surface, alloy powder containing substance for alloying and silicon or bismuth 失效
    通过用CO2激光照射，在基板表面上合成含合金粉末的合金粉末和硅或铋来形成合金层的方法

    公开(公告)号：US4746540A

    公开(公告)日：1988-05-24

    申请号：US894941

    申请日：1986-08-08

    申请人： Minoru Kawasaki ,  Soya Takagi ,  Kazuhiko Mori ,  Shinji Kato

    发明人： Minoru Kawasaki ,  Soya Takagi ,  Kazuhiko Mori ,  Shinji Kato

    IPC分类号： B23K35/28 ,  B05D3/06

    CPC分类号： B23K35/286

    摘要： In this method for forming an alloy layer on the surface of an aluminum alloy substrate, a powder for alloying, containing a substance to be alloyed with the substrate and an element selected from the group consisting of silicon and bismuth, is disposed upon the surface of the aluminum alloy substrate. This powder is then irradiated with a CO.sub.2 laser, so as to be melted and fused together with a surface portion of the aluminum alloy substrate, so that these two are alloyed together. The powder for alloying may be a powder of an alloy of the substance to be alloyed with the aluminum alloy substrate and the element selected from the group consisting of silicon and bismuth, or alternatively may be a mixture of a powder of the substance to be alloyed with the aluminum alloy substrate and a powder of the element selected from the group consisting of silicon and bismuth.

    摘要翻译： 在这种在铝合金基板的表面上形成合金层的方法中，将含有与基板合金的物质和选自硅和铋的元素合金化的粉末设置在 铝合金基板。 然后将该粉末用CO 2激光器照射，以与铝合金基材的表面部分熔融并熔合在一起，使得这两种合金化在一起。 用于合金化的粉末可以是与铝合金基材合金物质和选自硅和铋的元素的合金的粉末，或者可以是待合金物质的粉末的混合物 与铝合金基板和选自硅和铋的元素的粉末。