锻压技术

六辊斜轧无缝钢管矫直机的压下量研究

英文标题：Study of reduction rate for cross-roll seamless steel tube straightener

作者：李连进

关键词：弹塑性理论钢管矫直压下量

分类号：TG306

出版年,卷(期):页码：2008,33(5):82-84

摘要：

应用弹塑性弯曲矫直理论,对矫直过程进行了深入分析,对直径和直径误差与矫直压下量之间的关系进行了研究。计算结果表明,矫直后的直线度与直径误差无关,矫直效果随直径的增大而改善,最佳的相对压下量一般在0.64~0.77之间,与实验达到了较好的吻合。研究结果提出了最佳的矫直压下量选择方法,为提高矫直精度和制定最优工艺提供了理论依据。

Using elastic-plastic straightening theory,the straightening process was analyzed,and the relationship between of diameter,diametrical error and straightening reduction rate was studied by the theoretical calculation.Analysis results indicate that the linearity after straightening is independent of diametrical error,and straightening effectiveness is improved by increasing diameter,and optimum relative reduction rate are normally between 0.64-0.77,which is in conformance with the experimental results well.The result provides an optimal selection method of straightening reduction rate and theoretical basis for improving straightening precision and selecting optimal straightening process.

基金项目：

天津市应用基础及前沿技术研究计划项目(08JCYBJC12000);; 天津市科技支撑计划重点项目(08ZCKFGX03900)

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