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长期以来,Mannesmann二辊穿孔机都用桶形轧辊,它的子午线是折直线,所以叫折线轧辊似较确切,虽然各国都在改进辊形,特别是大角度穿孔时的辊形,但从数学上来看,还是折(直)线形,无本质上的变化。为了发展我国钢管制造技术,我们从1975年起研究折线轧辊下的变形区,给出它的曲面方程式和子午线方程式,证明了变形区是非线性的。苏联乌克兰科学院EMeЛbяHeкO院士和ΦoMичeB研究折线轧辊下的轧辊开度
For a long time, the Mannesmann two-roll piercer uses a barrel-shaped roll. Its meridian is a straight line, so the fold-line roll is more accurate. Although all countries are improving the shape of the roll, On the point of view, or fold (straight) linear, no essential changes. In order to develop the steel pipe manufacturing technology in our country, we studied the deformation zone under the folding roller since 1975, and given its surface equation and meridional equation, which proves that the deformation zone is nonlinear. Soviet Ukrainian Academy of Sciences EMeЛbяHeкO academicians and ΦoMичeB study roll folding roller under the opening