Sintered iron-base alloy vane for compressors
    1.
    发明授权
    Sintered iron-base alloy vane for compressors 失效
    用于压缩机的烧结铁基合金叶片

    公开(公告)号:US5125811A

    公开(公告)日:1992-06-30

    申请号:US623660

    申请日:1990-12-28

    IPC分类号: F04C29/00 C22C33/02 F01C21/08

    摘要: A compressor vane of a sintered iron-base alloy composed of an iron-base matrix containing hard carbides uniformly dispersed therein, characterized in that the sintered iron-base alloy consists essentially of 0.7 to 1.5% by weight C, 3.0 to 5.0% by weight Cr, 0 to 10.0% by weight Mo, 1 to 20.0% by weight W, 0.5 to 6.0% by weight V, 0 to 15.0% by weight Co and the balance iron and inevitable impurities, and that the compressor vane is produced by molding under a pressure of 5 to 8 ton/cm.sup.2 and then sintering at a temperature of less than 1250.degree. C. so as to control particle size of the hard carbide to not more than 5 .mu.m, as well as to control the theoretical relative density to 80 to 90%, and to control the macro-hardness to 10 to 45 in the Rockwell C scale.

    摘要翻译: PCT No.PCT / JP90 / 00561 Sec。 371 1990年12月28日第 102(e)1990年12月28日PCT 1990年4月27日PCT。一种烧结铁基合金的压缩机叶片,由含有均匀分散在其中的硬质碳化物的铁基基体组成,其特征在于,烧结铁基 合金基本上由0.7〜1.5重量%的C,3.0〜5.0重量%的Cr,0〜10.0重量%的Mo,1〜20.0重量%的W,0.5〜6.0重量%的V,0〜15.0重量% Co和余量为铁和不可避免的杂质,并且压缩机叶片通过在5至8吨/ cm2的压力下成型制备,然后在低于1250℃的温度下烧结,以控制硬度的颗粒尺寸 碳化物不超过5微米,并将理论相对密度控制在80〜90%,并将洛氏C级的宏观硬度控制在10〜45。

    Jointing structure of rotor and shaft
    2.
    发明授权
    Jointing structure of rotor and shaft 失效
    转子和轴的接合结构

    公开(公告)号:US5158390A

    公开(公告)日:1992-10-27

    申请号:US668683

    申请日:1991-03-07

    摘要: A jointing structure of a rotor and a shaft has a rotor made of aluminum alloy having a through-hole at a center thereof, and a shaft made of steel which is to be press fitted into the through-hole of the rotor, the shaft being formed at least at a part of a surface to be jointed with the through-hole of the rotor with a hump and valley portion along an axis thereof, the outer diameter of the hump portion being larger than the inner diameter of the through-hole, the hump and valley portion of the shaft being press fitted into the through-hole of the rotor.

    摘要翻译: 转子和轴的接合结构具有由铝合金制成的转子,其中心具有通孔,以及由钢制成的轴,该轴被压配合到转子的通孔中,轴为 至少在要与转子的通孔接合的表面的一部分上形成有沿其轴线的隆起和谷部,凸部的外径大于通孔的内径, 轴的驼峰和谷部被压配合到转子的通孔中。