Turbine rotor
    7.
    发明授权
    Turbine rotor 失效
    涡轮转子

    公开(公告)号:US4778345A

    公开(公告)日:1988-10-18

    申请号:US839664

    申请日:1986-03-14

    摘要: In a turbine rotor composed of a ceramic turbine blade and a metal shaft with an end to be machined, martensite stainless steel or martensite heat-resistant steel which can be hardened in a gas or vacuum after having been heated beyond the quenching temperature thereof is used as the metal. The ceramic blade and the metal shaft are heat-connected by brazing or shrinkage fit at 800.degree. C., or more. The metal shaft hardened through the heat-connection is tempered only at the end to be machined or the metal shaft heated to the quenching temperature is quench hardened only in part other than the end to be machined, thus facilitating the machining of the metal shaft locally which keeping the remaining part thereof in a quench hardened condition.

    摘要翻译: 在由陶瓷涡轮叶片和具有待加工端部的金属轴构成的涡轮转子中,使用马氏体不锈钢或马氏体耐热钢,其可以在被加热超过其淬火温度之后在气体或真空中硬化 作为金属。 陶瓷刀片和金属轴通过钎焊或者在800℃以上的收缩加热而进行热连接。 通过热连接硬化的金属轴只能在要加工的端部进行回火,或者加热到淬火温度的金属轴仅在除被加工端之外的部分淬火硬化,从而有助于本地加工金属轴 其将其余部分保持在淬火硬化状态。

    Ceramic-metal joint structure
    8.
    发明授权
    Ceramic-metal joint structure 失效
    陶瓷 - 金属接头结构

    公开(公告)号:US4723862A

    公开(公告)日:1988-02-09

    申请号:US879538

    申请日:1986-06-24

    摘要: A power-transmitting ceramic to metal joint structure including a first shaft consisting essentially of a sintered ceramic material, one portion of the shaft defining a first mating surface; an intermediate insert consisting essentially of a sintered ceramic material, the insert having two opposite insert mating surfaces, the insert having a thickness between the opposite insert mating surfaces in the range of from about 1.5 to about 20% of a distance defined by the cross section of the first mating surface and a flexural strength of not less than about 70% of the sintered ceramic material comprising the first shaft; a second shaft consisting essentially of metal, one portion of the second shaft defining a second mating surface; and brazing filler means affixing the first mating surface to one of the insert mating surfaces and the second mating surface to the opposite insert mating surface, the aforementioned mating surfaces being affixed in abutting relationships. Preferably, the intermediate insert has a thermal expansion coefficient in the range from about that of the first shaft to about that of the second shaft.

    摘要翻译: 一种动力传递陶瓷 - 金属接头结构,包括基本上由烧结陶瓷材料组成的第一轴,所述轴的一部分限定第一配合表面; 基本上由烧结陶瓷材料组成的中间插入件,所述插入件具有两个相对的插入配合表面,所述插入件在相对的插入配合表面之间的厚度在由截面限定的距离的约1.5至约20%的范围内 的第一配合表面,并且具有不小于包含第一轴的烧结陶瓷材料的约70%的弯曲强度; 基本上由金属组成的第二轴,所述第二轴的一部分限定第二配合表面; 以及钎焊装置,其将所述第一配合表面固定到所述插入配合表面和所述第二配合表面中的一个到相对的插入配合表面,所述配合表面以邻接关系固定。 优选地,中间插入件的热膨胀系数在从大约第一轴到第二轴的热膨胀系数的范围内。

    Joining structure of a turbine rotor
    9.
    发明授权
    Joining structure of a turbine rotor 失效
    涡轮转子的结合

    公开(公告)号:US5076484A

    公开(公告)日:1991-12-31

    申请号:US658143

    申请日:1991-02-20

    申请人: Masaya Ito Seiji Mori

    发明人: Masaya Ito Seiji Mori

    摘要: In a joining structure of a turbine in which a shaft portion of a ceramic turbine rotor is joined to a metal shaft in the through bore of a metal sleeve by brazing, the joining structure of this invention comprises a first flange formed on the metal sleeve, the first flange extending toward the axis of the through bore, a second flange formed on the metal shaft, the second flange extending outward and the outside diameter thereof being larger than the inner diameter of the first flange, wherein side surfaces of the first and the second flanges are engaged and brazed with each other. An intermediate layer may be interposed between the bottom end of the shaft portion of the turbine rotor and the bottom end of the metal shaft for reinforcement. The intermediate layer is made of one or more than one metal selected from the group consisting of Ni, Cu, Fe, Ag, KOVAR, Fe-Ni Alloy, and W alloy.

    摘要翻译: 在涡轮机的接合结构中,陶瓷涡轮转子的轴部通过钎焊与金属套筒的通孔中的金属轴接合,本发明的接合结构包括形成在金属套筒上的第一凸缘, 所述第一凸缘朝向所述通孔的轴线延伸,形成在所述金属轴上的第二凸缘,所述第二凸缘向外延伸并且所述第二凸缘的外径大于所述第一凸缘的内径, 第二凸缘彼此接合并钎焊。 中间层可以设置在涡轮转子的轴部的底端和用于加强的金属轴的底端之间。 中间层由选自Ni,Cu,Fe,Ag,KOVAR,Fe-Ni合金和W合金中的一种或多种金属制成。