The invention discloses a high-strength and high-toughness die-casting aluminum alloy for an automobile structural part and a preparation method and application of the high-strength and high-toughnessdie-casting aluminum alloy for the automobile structural part. The high-strength and high-toughness die-casting aluminum alloy for the automobile structural part comprises the components of, 8.0%-12.0% of Si, 0.4%-1.2% of Mn, 0.1%-0.6% of Mg, 0.01%-0.2% of Sr, 0.005%-0.25% of Fe, 0.005%-0.2% of Sc and the balance Al and inevitable trace impurities, the content of a single element in the trace impurities is smaller than or equal to 0.1%, and the total amount of the trace impurities is smaller than or equal to 0.3%. The high-strength and high-toughness die-casting aluminum alloy is applied to the automobile stress structural part, the automobile stress structural part comprises an auxiliary frame and a shock absorber support, compared with a traditional aluminum alloy die-casting material and a mainstream Silafot36 aluminum alloy, the high-strength and high-toughness die-casting aluminum alloy has more excellent mechanical properties at a lower cost, is excellent in yield strength, tensile strength and elongation, is beneficial to the automobile industry to obtain higher performance at a lower cost, and is beneficial to the light weight of an automobile.

    本发明公开了一种汽车结构件用高强度、高韧性压铸铝合金及其制备方法以及应用。一种汽车结构件用高强度、高韧性压铸铝合金,组分包括:Si8.0%‑12.0%、Mn0.4%‑1.2%、Mg0.1%‑0.6%、Sr0.01%‑0.2%,Fe0.005%‑0.25%,0.005%‑0.2%的Sc,余量为Al和不可避免的微量杂质,其中,微量杂质中的单个元素含量≤0.1%,微量杂质总量≤0.3%,其应用于汽车受力结构件,包括副车架、减震器支座。能够在较低的成本下,得到比传统的铝合金压铸材料以及主流Silafont36铝合金更为优异的力学性能,其屈服强度、抗拉强度、伸长率均表现优异,利于汽车工业以较低成本获得较高性能,利于汽车的轻量化。


    Access

    Download


    Export, share and cite



    Title :

    High-strength and high-toughness die-casting aluminum alloy for automobile structural part and preparation method and application of high-strength and high-toughness die-casting aluminum alloy for automobile structural part


    Additional title:

    一种汽车结构件用高强度、高韧性压铸铝合金及其制备方法以及应用


    Contributors:
    ZHANG JUNCHAO (author) / ZHONG GU (author) / QIU CHU (author) / LU TONG (author) / LI HUTIAN (author) / ZHOU YULI (author)

    Publication date :

    2021-01-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C22C Legierungen , ALLOYS / B62D MOTOR VEHICLES , Motorfahrzeuge / F16F SPRINGS , Federn



    High-strength and high-toughness die-casting aluminum alloy

    WANG YUNHAI / WANG LIANLAI | European Patent Office | 2024

    Free access

    High-strength and high-toughness aluminum alloy damping tower and vacuum die-casting method thereof

    FU YACHENG / FU PENGFEI / WANG DENGFENG et al. | European Patent Office | 2024

    Free access

    High-strength aluminum alloy automobile frame

    ZHOU FENG | European Patent Office | 2021

    Free access

    High-toughness aluminum alloy brake caliper and extrusion casting method thereof

    FU YACHENG / FU PENGFEI / WANG DENGFENG et al. | European Patent Office | 2024

    Free access

    X2048, A High Strength, High Toughness Aluminum Alloy for Aircraft Applications

    S. A. Levy / R. E. Zinkham / G. E. Spangler | AIAA | 1974