经矫直机矫过一道之后轧件的变形效果取决于矫直辊的数量。根据资料,如果是带张力弯曲矫直,在确定轧件相对延伸率的过程中应当根据两种不同类型的总应力图而异。这两种应力图的区别在于,一种有塑性压缩区;另一种无塑性压缩区(图1)。有塑性压缩区的具有如下特点:(A—2Z_0)σ_r≥ Deformation of the rolling stock after straightening the straightening machine depends on the number of straightening rolls. According to the information, in the case of straightening with tension, the relative elongation of the rolling stock should be different according to two different types of total stress diagrams. The difference between the two stress maps is that there is a plastic compression zone; another non-plastic compression zone (Figure 1). A plastic compression zone has the following characteristics: (A-2Z_0) σ_r ≥