Introduction to two popular shaping devices for PE pipe equipment

PE pipe equipment has different forming structures to choose from to adapt to different materials, production speeds, and quality requirements. At present, there are two common forming equipment for PE pipe equipment: cylindrical sizing sleeves and sheet composite sizing sleeves. The reasonable selection of pipeline installation equipment plays an important role in pipeline quality and production economy.

Among these two sizing devices, the cylindrical sizing sleeve is widely used and has a wide range of applicability. For cylindrical sizing sleeves, the stability and uniformity of the water flow introduced by the water ring directly affect the extrusion quality of the PE pipe device, and the cooling rate of the molten material in the sizing sleeve is the internal quality. influence. Pipe wall.

The sheet-like composite sizing sleeve is mainly used for producing small diameter high-speed extruded PE pipes, but the extrusion speed can be above 35m/min depending on the pipe diameter and processing material. The sheet-shaped sizing device consists of multiple thin copper sheets, with a circular sizing hole in the middle and a support on the outside. The distance between each layer of thin copper plate is regularly distributed along the direction of billet introduction. The distance gradually increases, and the distance between the copper plates near the introduction end of the billet narrows, preventing the plasticized billet from accumulating between the sheets and being squeezed out. You can gradually increase the distance.