The invention provides a cast steel material, a coupler knuckle, a preparation method of the coupler knuckle and a railway vehicle, and the cast steel material comprises the following components in percentage by weight: 0.18 to 0.23 percent of C, 0.20 to 0.40 percent of Si, 0.85 to 1.10 percent of Mn, 0 to 0.015 percent of P, 0 to 0.015 percent of S, 1.00 to 1.20 percent of Cr, 0.95 to 1.05 percent of Ni, 0.40 to 0.80 percent of Mo, 0.020 to 0.050 percent of Al, 0 to 0.20 percent of Cu, 0.040 to 0.090 percent of V, 0.020 to 0.070 percent of Nb, 0.020 to 0.050 percent of Ti and the balance of Fe and inevitable impurities. According to the technical scheme, the problem that in the prior art, a cast steel material cannot meet the requirements of the coupler knuckle of the railway vehicle due to the fact that the cast steel material cannot give consideration to high yield strength, tensile strength and better impact performance is effectively solved.

    本发明提供了一种铸钢材料、钩舌及其制备方法、轨道车辆,其中,铸钢材料,按重量百分含量计,铸钢材料包括:0.18~0.23%的C、0.20~0.40%的Si,0.85~1.10%的Mn,0~0.015%的P、0~0.015%的S、1.00~1.20%的Cr、0.95~1.05%的Ni,0.40~0.80%的Mo、0.020~0.050%的Al、0~0.20%的Cu、0.040~0.090%的V、0.020~0.070%Nb,0.020~0.050%的Ti、余量的Fe和不可避免的杂质。本申请的技术方案有效地解决了现有技术中铸钢材料无法兼顾较高的屈服强度、抗拉强度及更好的冲击性能,从而导致其无法满足轨道车辆钩舌要求的问题。


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    Title :

    Cast steel material, coupler knuckle, preparation method of coupler knuckle and railway vehicle


    Additional title:

    铸钢材料、钩舌及其制备方法、轨道车辆


    Contributors:
    TIAN CHANGLIANG (author) / LIU SHENGTIAN (author) / SONG DEJING (author) / WANG AN (author) / LI RI (author) / LI HUI (author) / CAI JIANWEI (author)

    Publication date :

    2023-04-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    C22C Legierungen , ALLOYS / B22C FOUNDRY MOULDING , Gießformen / B61G Kupplungen besonders ausgebildet für Eisenbahnfahrzeuge , COUPLINGS SPECIALLY ADAPTED FOR RAILWAY VEHICLES / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS



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