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一、引言 钢丝螺套(以下简称丝套)拧入螺纹底孔以后,构成一个新的螺纹孔,这个新螺纹孔是否符合螺纹标准,在很大程度上取决于菱形钢丝型面修正的是否恰当。因此,掌握丝套型面的变化规律,对于指导生产具有一定的意义。
I. INTRODUCTION The screw thread sleeve (hereinafter referred to as the wire sleeve) is screwed into the thread bottom hole to form a new thread hole. Whether the new thread hole conforms to the thread standard depends largely on the correctness of the rhombic steel wire surface modification . Therefore, grasping the variation rule of the silk sleeve surface has some significance for guiding the production.