针对H型钢轧制中的一些问题,设计了H型钢在线控冷装置.此装置采用气雾冷却方式,着重对H型钢R部进行快速冷却,冷速达100℃/s以上.试验结果表明,产品表面状态改善,晶粒细化,屈服强度和抗拉强度均提高21 MPa以上且断面性能均匀.轧件上冷床温度降低,生产效率提高,年产量达到预定产能的2倍以上且节省原冷床上风机的消耗.
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