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1、引言用仪有宽展段的楔横轧孔型所轧得的轧件具有螺旋状斜台肩(图1-a)。如要得到具有内直角台肩的产品(图1-b),则应根据台肩的轴向距离2b将孔型设计成如图2所示,即在宽展段和校正段之间增加一定长度的截齐段。
1. INTRODUCTION The rolling stock rolled with wedge cross-rolling pass has a helical inclined shoulder (Figure 1-a). To obtain a product with an inner right-angle shoulder (Figure 1-b), the hole pattern should be designed according to the axial distance 2b of the shoulder as shown in Figure 2, ie by a certain amount between the extended and corrected sections The length of the block.