挤压式卡套管接头是在切入式卡套管接头基础上发展的。下面先介绍一下切入式卡套管接头。图1为切入式卡套管接头结构图。卡套3通常用低碳钢制造,表面氰化后淬火,或用不锈钢表面氮化淬火。(?)图11.24°管接头体2.螺母3.卡套4.导管装配时,利用卡套3表面氰化或氮化后淬火的高硬度,使其刃口切入导管4,头部拱起成球形。卡套3头部球面和管接头体1 Extrusion tube fittings are developed on the basis of plunge tube fittings. Here to introduce the first plunge tube connector. Figure 1 for the cut-in tube connector structure. Ferrule 3 is usually made of mild steel, hardened on the surface after cyanidation, or nitrided with a stainless steel surface. (?) Fig. 11.24 ° Tube body 2. Nut 3. Collet 4. When the catheter is assembled, use the high hardness of the surface of the ferrule 3 to be hardened after cyanidation or nitriding so that its cutting edge is cut into the catheter 4 and the head is arched Into a ball. Card 3 sets of spherical head and pipe fittings 1