The paper involves an investigation into the new steel pipe manufacture technology of roller die drawing with the two-stand Ytype three-high mill.
研究了利用二连式Y型三辊辊模拉拔钢管生产新技术。
2
The rolling mechanism was studied in this paper. The rolling process and the design of pass of rolling mill were researched, meanwhile, the rolling pressure of Y-type rolling mill was also calculated.
本文从研究轧制原理入手，对轧制工艺及孔型设计进行了深入研究，给出了Y型轧机轧制压力计算。
3
The fundamental characteristics of Y-type rolling mill with three rollers and methods. of designing and calculating the grooves are described in this paper.