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    • 4. 发明授权
    • High strength, rapidly solidified alloy
    • 高强度,快速凝固的合金
    • US5647919A
    • 1997-07-15
    • US318531
    • 1994-10-05
    • Kazuhiko KitaHidenobu Nagahama
    • Kazuhiko KitaHidenobu Nagahama
    • C22C45/00C22C21/00C22C23/00C22C45/08
    • C22C21/00C22C45/08
    • A high strength, rapidly solidified alloy consisting of aluminum and, added thereto, additive elements. The mean crystal grain size of the aluminum is 40 to 1000 nm, the mean size of particles of a stable phase or a metastable phase of various intermetallic compounds formed from the aluminum and the additive element and/or various intermetallic compounds formed from the additive elements themselves is 10 to 800 nm, and the intermetallic compound particles are distributed in a volume fraction of 20 to 50% in a matrix consisting of aluminum. The rapidly solidified alloy has an improved strength at room temperature and a high toughness and can maintain the properties inherent in a material produced by the rapid solidification process even when it undergoes a thermal influence during working.
    • 由铝组成的高强度,快速固化的合金,并添加添加元素。 铝的平均晶粒尺寸为40〜1000nm,由铝和添加元素形成的各种金属间化合物和/或由添加元素形成的各种金属间化合物的稳定相或亚稳相的颗粒的平均尺寸 本身为10〜800nm,金属间化合物粒子在由铝构成的基体中以20〜50%的体积分数分布。 快速凝固的合金在室温下具有改善的强度和高韧性,并且即使在加工期间经受热影响时,也能够保持由快速凝固过程生产的材料固有的特性。
    • 8. 发明授权
    • Method and apparatus for production of cast article having small hole
    • 用于生产具有小孔的铸造制品的方法和装置
    • US06374899B1
    • 2002-04-23
    • US09697421
    • 2000-10-27
    • Tadashi YamaguchiMasaki SatoHidenobu Nagahama
    • Tadashi YamaguchiMasaki SatoHidenobu Nagahama
    • B22D2900
    • B22C9/101B22D17/24B22D29/001G02B6/3865
    • A method for the production of a cast article having a small hole comprises the steps of setting a linear core member in a cavity of a metal mold, injecting a molten metal into the cavity, and drawing out the core member from the resultant cast product to form a small hole. A linear core member having a surface film formed by surface coating or by subjecting to a surface treatment is used so that the surface film is partly or as a whole peeled off the linear core member upon drawing it from the cast product, thereby enabling the core member to be drawn from the inside of the cast product. Alternatively, the linear core member is so constructed as to elastically deform in the drawing direction upon drawing it from the cast product to have a diameter smaller than the original diameter.
    • 制造具有小孔的铸造制品的方法包括以下步骤:在金属模具的空腔中设置线性芯构件,将熔融金属注入到空腔中,并将芯构件从所得铸造产品中拉出 形成一个小洞。 使用具有通过表面涂覆形成的表面膜或通过进行表面处理的线状芯体部件或整体上从表面处理部分或整体上剥离直线芯部件,从而使得芯部 成员从铸造产品的内部抽出。 或者,线状芯体构造成在从铸造产品中拉出时沿拉拔方向弹性变形,直径小于原始直径。
    • 9. 发明授权
    • High strength, heat resistant aluminum-based alloys
    • 高强度,耐热铝基合金
    • US5334266A
    • 1994-08-02
    • US980421
    • 1992-11-23
    • Makoto KawanishiHidenobu Nagahama
    • Makoto KawanishiHidenobu Nagahama
    • B22D11/06C22C21/00C22C45/08
    • C22C45/08C22C21/00
    • High strength, heat resistant aluminum-based alloys have a composition consisting of the following general formula Al.sub.a M.sub.b X.sub.d or Al.sub.a' M.sub.b Q.sub.c X.sub.d, wherein M is at least one metal element selected from the group consisting of Co, Ni, Cu, Zn and Ag; Q is at least one metal element selected from the group consisting of V, Cr, Mn and Fe; X is at least one metal element selected from the group consisting of Li, Mg, Si, Ca, Ti and Zr; and a, a', b, c and d are, in atomic percentages; 80.ltoreq.a.ltoreq.94.5, 80.ltoreq.a'.ltoreq.94, 5.ltoreq.b.ltoreq.15, 0.5.ltoreq.c.ltoreq.3 and 0.5.ltoreq.d.ltoreq.10. In the above specified alloys, aluminum intermetallic compounds are finely dispersed throughout an aluminum matrix and, thereby, the mechanical properties, especially strength and heat resistance, are considerably improved. The aluminum-based alloys of the present invention are very useful as light-weight, high-strength materials, namely, high specific strength materials, both at room temperature and elevated temperatures.
    • 高强度,耐热的铝基合金具有由以下通式AlaMbXd或Ala'MbQcXd组成的组成,其中M是选自Co,Ni,Cu,Zn和Ag中的至少一种金属元素; Q是选自V,Cr,Mn和Fe中的至少一种金属元素; X是选自Li,Mg,Si,Ca,Ti和Zr中的至少一种金属元素; a,a,b,c和d为原子百分数; 80