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公开(公告)号:US4161800A
公开(公告)日:1979-07-24
申请号:US834327
申请日:1977-09-19
CPC分类号: C21D1/62 , B21B45/0215 , C21D1/667
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。