采用流函数方法，对螺旋孔型斜轧过程进行了分析，得到了轧制过程力能参数的计算公式，并进行了实例计算和比较。
The flow function method was applied to the process of screw rolling balls in the paper. The computing formulas of rolling power and force were given. Finally the computing example was presented.
介绍了一种螺旋槽换热管轧制工具的机械结构及工作原理，给出了常用螺旋槽换热管的几何参数。
The mechanical structure and working principles of a kind of rolling tool for spiral groove tubes are introduced, and the geometrical parameters of normal spiral groove tubes are provided.
当挠性管柱被轧制时，焊缝的螺旋形使得在焊缝处增强了管子的性能。
When the tubing string is milled, the helical weld form provides enhanced characteristics of the tube at the weld site.
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