Wall-thickness accuracy of steel tubes rolled on a pilgermill can be improved with the automatic process control system established.
建立工艺过程自动控制系统提高周期轧管机轧制的钢管壁厚精度。
2
The operating principle and functions of the contour lathe used to dress pilger pipe mill roll are described. The reasons for modification of the lathe and the existing problems thereof are analyzed.
The paper gives a brief introduction to three types of mandrels used for the two-high pilger cold-rolling mill, namely, mono-cone mandrel, dual-cone mandrel and parabolic mandrel.