厚板不充分变形矫直工艺方案研究

Research of deficient deformation leveling model in heavy plate

由于受到矫直机矫直能力的限制，变形抗力较高的厚板难以一次矫直。文章提出了不充分变形多道次矫直方案，可有效地改善板形；该方案采用小于弹性弯曲弹复曲率极限C的反弯曲率Cw，矫后残余曲率与原始分布相同，但数值上小于原始曲率，这样既可降低矫直力，又可满足矫直要求，从而扩大了可矫轧件变形抗力范围1／4-1／3。

Due to limits of leveling machine＇s ability, it is difficulty that leveling heavy plate of high deformation resistance. The paper introduces that Deficient deformation Leveling model in heavy plate. This model may amend profile shape in effect. In the model it is adopted that counter bend curvature Cw is less than rebound limit curvature Ct, and the residual curvature＇s distribution Cc is homology and is less than original curvature Co. The model reduce power of leveling and extend range of deformation resistance by 1/4-1/3.