在其孔型设计中，合理地分配了成型道次和弯曲角。
The finishing passes and bending angel were reasonably distributed during pass design.
目前，国内带有立辊组的直缝焊管成型机大都采用双半径孔型。
The double radius hole type was commonly adopted for the forming machine of straight weld pipe with vertical roller in domestic present.
并介绍了与单半径孔型和双半径孔型比较，W成型的优点及在厚壁管生产中的应用实例。
Then, they introduced the advantages of W-bend forming and its application in thick-walled tube production.
在成型和定径时运用成组技术，可用一套开口孔型辊、定径辊生产一组外径相近的焊管。
With the grouping technique it is allowed to produce a group of tube sizes with similar O.
以槽钢辊式冷弯成型理论分析为基础，论述了槽钢辊式冷弯成型的孔型构成及孔型尺寸的确定方法。
This paper based on the theory of Cold Roll Forming for groove steel, discuss the methods for confirming the figures and the dimension for groove steel.
介绍了采用土耳其头轧制椭圆管的成型辊孔型设计原则、设计步骤以及各架次成型辊参数的计算公式。
The article introduces forming roller pass design principle, design process and calculating formula of each layer former roller parameter in ellipse pipe rolled by turks-head roll.
介绍了采用土耳其头轧制椭圆管的成型辊孔型设计原则、设计步骤以及各架次成型辊参数的计算公式。
The article introduces forming roller pass design principle, design process and calculating formula of each layer former roller parameter in ellipse pipe rolled by turks-head roll.
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