PVC-U water supply pipe 2

PVC-U water supply pipeIn actual production, it is necessary to use different plastic extruders or screws according to the different resins to produce various types of PVC water supply fittings.

One of the forming characteristics of PVC water supply fittings is amorphous material, which has low moisture absorption and poor fluidity To improve fluidity and prevent the occurrence of bubbles, plastic can be pre dried The mold pouring system should be thick and short, the gate section should be large, and there should be no dead corners. The mold must be cooled and the surface should be chrome plated. Due to the corrosive and flowable characteristics of PVC pipes, it is best to use specialized equipment and molds. All products require the addition of different types and quantities of additives as needed, and are highly prone to decomposition. They are more easily decomposed when in contact with steel and copper at a temperature of 200 degrees Celsius, and release corrosive and irritating gases during decomposition. The molding temperature range is small;

In addition, when using screw injection machine nozzles for PVC water supply fittings, the aperture should be large to prevent dead corners and material stagnation, and there should be no embedded parts. If there are embedded parts, they should be preheated.