本文介绍的轧管机的轧制方法是:前后布置的具有大直径工作辊和小直径工作辊的机架,在反向往复运动中,只在正行程时交替地以大直径工作辊进行初轧,而以小工作辊进行定径精整。采用这种方法,既提高了轧机的生产效率,又改善了管材的质量。初轧机架1由电机经曲柄连杆机构带动作往复运动,而精整机架2靠连在初轧机架1上的齿条和齿轮驱动装置带动作往 Rolling mill rolling method introduced in this article are: front and rear arrangement with a large diameter work roll and small diameter work roll rack, reciprocating reciprocating motion, only in the positive stroke alternating with large diameter work roll early Rolling, and small work roll diameter sizing. With this method, not only improve the mill’s production efficiency, but also improve the quality of the pipe. The first rolling stand 1 is reciprocated by a motor with a crank-connecting rod mechanism, and the finishing frame 2 is driven by a rack and a gear driving device connected to the first rolling stand 1