穿孔机轧制中心线测量与调整

钢管轧制过程中，穿孔机轧制中心线的偏差对毛管壁厚的质量有一定的影响。因此穿孔机轧制中心线测量与调整成为年修工作的重点项目。介绍了天津钢管公司轧管厂2001年、2002年年修穿孔机标高测量结果趋势，以及2003年年修调整前实际中心线和目标调整中心线的差别以及2003年年修调整后穿孔机标高测量趋势。

Measuring and Adjusting of the Rolling Centerline of the Perforating Machine

In the course of the rolling of the steel pipe,the deviation of the rolling center-line of the perforating m achine possesses a certain influence on the quality ofsem i-finished tube'wallthickness.Therefore the m easuring and adjusting the rolling centerline of the perforating m achine has becom e the key item of the annual inspection.This paper introduces the varying trends of the m easured values ofthe heightm ark of the perforating m achine of Tianjin Steel-pipe Com pany's Tube M ill,expounds the differences between the actualcenterline before annualinspection of2003and the target-adjusted centerline,and gives the trend of the m easuring of the height m ark ofthe perforating m achine after the annualinspection of 2003.