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在钢管生产中,早已运用高质量、高效率的斜辊矫直方法了,但因辊管关系较复杂,致使斜辊矫直机的辊型理论一直未获很好解决。长期以来,国内外都是应用苏联的近似辊型理论[1、2]来指导专业生产、科研及教学活动。近几年,由于该理论存在较大的误差,无法满足管材生产的需求,推动了对辊型研究工作的进展。首先由美国的P.F.Li-lienthal五人推导出解截面切点的“一元四次方程”这一关键公式,解决了高精度辊型
In the production of steel pipes, the high-quality and high-efficiency skew-roller straightening method has long been used. However, due to the complicated relationship between the rollers, the roller type theory of skew-roller straightening machine has not been solved well. For a long time, the Soviet Union’s approximate roll theory [1,2] has been used at home and abroad to guide professional production, research and teaching activities. In recent years, due to the existence of large errors in the theory, can not meet the needs of pipe production, promote the research progress of roller type. First, by the United States P.F.Li-lienthal five derive the tangent point solution cross-section of the “quadratic equation” this key formula to solve the high-precision roller