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本文的目的是想改变过去产品设计时使用的类比摸索方法,提高到理论指导下由实验决定数据的方法上来。一、矫直方案 1.变形区由于原材粗细、机械性能、矫直要求不同,要求矫直模在筒中的位置有所不同。在转速n_0、牵引速度v、节距t_0(或t)确定后,各种直径d、机械性能σ_(0.2)(或σ_s)的圆材,矫直质量的好坏取决于矫直方案。 (1)对于小直径高强、矫直质量要求高的圆材,塑性变形次数m要大,矫直方案应增加变形区数量,增大偏心量f,这称为多变形区方案。 (2)对于大直径和低强度圆材矫直时
The purpose of this paper is to change the method of analogical exploration used in the past design of products and improve the method of experimentally determining data under theoretical guidance. First, the straightening program 1. Deformation zone due to the thickness of raw materials, mechanical properties, straightening different requirements of straightening mold in the cylinder position is different. After the speed n_0, the traction speed v and the pitch t_0 (or t) are determined, the quality of the straightening quality depends on the straightening scheme of round wood with various diameters d and mechanical properties σ_ (0.2) (or σ_s). (1) For round wood with small diameter, high strength and high straightening quality, the number of plastic deformation m should be large. The straightening program should increase the number of deformation zones and increase the eccentricity f, which is called multi-deformation zone scheme. (2) For large diameter and low strength straightening of logs