Chlorinated polyvinyl chloride DN400 loose flange once injection moulding technique and device thereof
A technology of chlorinated polyvinyl chloride and injection molding process, which is applied to other household appliances, household components, household appliances, etc., can solve the problems of long pre-molding time, difficult to control and unstable friction heat of the screw, and improve the friction temperature High speed, stable speed, and the effect of reducing frictional heat
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[0025] Chlorinated polyvinyl chloride DN400 loop flange one-time injection molding process, including the following process:
[0026] 1. PVC-C (chlorinated polyvinyl chloride) raw material
[0027] 2. Drying box, the drying time of raw materials is 4 hours, and the temperature is 80-90°C
[0028] 3. Injection molding
[0029] 4. Pressure holding
[0030] 5. Cooling
[0031] 6. Mold opening
[0032] 7. Inspection
[0033] 8. Storage
[0034] The process parameters involved in the method are as follows:
[0035] When selecting the temperature of the barrel, it should be ensured that the plastic is well plasticized, and the material can be successfully injected without causing the material to decompose. During the injection molding process, the heating part of the barrel of the injection molding machine is divided into seven sections, and the positions are evenly arranged. Each section is heated by The ring is heated separately, and the selected cylinder temperature is sho...
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