Work roll for metal rolling
    3.
    发明授权
    Work roll for metal rolling 失效
    金属轧制工作辊

    公开(公告)号:US5081760A

    公开(公告)日:1992-01-21

    申请号:US541012

    申请日:1990-06-20

    IPC分类号: B21B27/00 B32B15/01 C21D9/38

    CPC分类号: B32B15/011 B21B27/00 C21D9/38

    摘要: A compound roll for a metal rolling mill having both excellent resistance to a thermal shock crack and excellent wear resistance includes a core shaft made of low alloy steel and an outer layer consisting of high speed tool steel having a composition, by weight percent, essentially of 0.5 to 1.5% of C, 0.5 to 3.0% of Si, 1.5% or less of Mn, 2 to 7% of Cr, 1 to 5% of Mo, 0.5 to 2.0% of V, up to 2.0% of W and balance essentially Fe. The outer layer is formed on the outer surface of the core shaft by an electro-slag method. The outer layer is subjected to a water jet spray quenching and tempering at 300.degree. C. or higher, preferably 450.degree. C. to 550.degree. C.

    摘要翻译: 具有优异的抗热冲击裂纹性和优异耐磨性的金属轧机用复合辊包括由低合金钢制成的芯轴和由高速工具钢组成的外层,所述高速工具钢的重量百分比基本上为 0.5〜1.5%的C,0.5〜3.0%的Si,1.5%以下的Mn,2〜7%的Cr,1〜5%的Mo,0.5〜2.0%的V,高达2.0%的W和余量 基本上是Fe。 外层通过电渣法形成在芯轴的外表面上。 外层在300℃以上,优选450℃〜550℃进行喷水喷射淬火回火。