Apparatus for improving the quality of steel sections
    1.
    发明授权
    Apparatus for improving the quality of steel sections 失效
    提高钢筋质量的装置

    公开(公告)号:US4161800A

    公开(公告)日:1979-07-24

    申请号:US834327

    申请日:1977-09-19

    摘要: At the outlet of the finishing stand of a rolling mill, a cooling apparatus is arranged to surface quench only the outer layer of the flat face of a steel section by a cooling fluid. The cooling conditions are adjusted so that, at the outlet of the cooling zone, the unquenched parts of the section are at a temperature still sufficiently high to temper the quenched face, and so that the austenite is transformed into ferrite and carbides in the unquenched parts of the section.

    摘要翻译: 在轧机的精轧机的出口处,冷却装置被布置成通过冷却流体仅表面淬火钢板的平坦面的外层。 调节冷却条件,使得在冷却区的出口处,该截面的未淬火部分处于仍足够高的温度以回火淬火的表面,并且使得奥氏体在未淬火部分中转化为铁素体和碳化物 的部分。