pipe sinking drawing 空拔钢管
Pipe sinking drawing is analysed using continuous speed field and the equations of wall thickness variations in sinking drawing established.
利用连续速度场分析了圆管空拔过程，建立了空拔壁厚变化量计算式。
The effects of various amounts of deformation, steel grades, degrees of hardenability, die entry angle and drawing speeds on dia. sinking drawing are studied.
研究了不同变形量、钢种、硬化程度、模角和拔制速度对空拔管直径缩小量的影响。
The formula is therefore considered as available to the calculation of drawing force on tube sinking.
该计算式可用于圆管空拉拔制力计算。
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