Method for producing hot rolled steel sheet using induction heating and
apparatus therefor
    2.
    发明授权
    Method for producing hot rolled steel sheet using induction heating and apparatus therefor 失效
    使用感应加热制造热轧钢板的方法及其设备

    公开(公告)号:US5990464A

    公开(公告)日:1999-11-23

    申请号:US958069

    申请日:1997-10-27

    摘要: A method and hot rolling apparatus for producing a hot rolled steel sheet include a roughing rolling mill to roughing roll a heated slab into a sheet bar, at least one solenoid-type induction heater arranged for re-heating the sheet bar over its entire width, and a finish rolling mill arranged to finish roll the re-heated sheet bar into a hot rolled steel sheet having a predetermined thickness. An initial temperature before rolling is set to be low, and re-heating of the sheet bar is carried out around the middle of the hot rolling apparatus. The thermal energy required for rolling is thereby reduced as a whole without damaging the quality of the resulting hot rolled steel sheet. A descaling apparatus is provided prior to the finish rolling mill to remove oxide scales on surfaces of the sheet bar, whereby the resulting hot rolled steel sheet is free of scale flaws and exhibits superior surface properties.

    摘要翻译: 一种用于制造热轧钢板的方法和热轧装置包括:粗轧机,用于将加热的板坯粗轧成板坯;至少一个电磁线圈式感应加热器,其布置成在其整个宽度上再加热板料, 以及精轧机,其被配置为将再加热的薄板坯完成滚动到具有预定厚度的热轧钢板中。 将轧制前的初始温度设定得较低,并且在热轧装置的中央附近进行薄板坯的再加热。 因此,轧制所需的热能整体上降低,而不损害所得热轧钢板的质量。 在精轧机之前提供除锈装置,以除去片材表面上的氧化皮,由此所得到的热轧钢板没有鳞屑,表现出优异的表面性能。