Overview of pipe shrinking machine

Tube necking is a molding process that reduces the diameter of the end of the tube blank. The tube blank enters the deformation zone under the action of axial force, and produces tangential shrinkage plastic deformation in the deformation zone, then enters the stable zone, and finally forms a reduced end diameter.
Tube flaring is a forming process that expands the diameter of the end of the tube blank. The flaring shape can be conical or cylindrical. The tube blank enters the deformation zone under the action of axial force, and produces the flaring plastic deformation of tangential tension in the deformation zone, then enters the stable deformation zone, and finally forms.
By setting a tubular throttle valve on the main cylinder circuit, the working speed of the main cylinder can be adjusted; A superimposed hydraulic control check valve is arranged on the clamping cylinder circuit to ensure that the mold is not loose during clamping; The displacement cylinder, limit cylinder and axial positioning cylinder circuits are equipped with superimposed two-way throttle valves, which can adjust the two-way movement speed of the above cylinders. The shift oil cylinder and the limit oil cylinder are used in conjunction with the conversion station, so that the station conversion is convenient and accurate, and the pipe fitting processing quality is guaranteed.