Plastic injection molding process means under the given conditions,plastic parts can be made by
the injection machine and injection mould.The following are the plastic injection molding process' steps:
Mould clamping and locking in plastic injection molding process
Firstly , themould should be clamped under the condition of high speed and low pressure.When the female mould and male mould become closer , the speed will be lower .In order to lock the mould closely, the pressure will be higher and the speed will be lower.
2.Injection device move forward in plastic injection molding process
The nozzle and the mold runner entrance can be jointed with the pressure ,which can make a good preparation for the injection.
Injection and pressure maintaining in plastic injection molding process
The pressure which screw head act on the melt material called first pressure. The feeding effect by the pressure maintaining can avoid the melt material shrinkage ,it is the second pressure.
Cooling parts and preplastification in plastic injection molding process
In order to shorten the cycle time, the preplastification and the parts cooling can be done at the same time.while the parts cool down by the mould's cool effect , the screw's movement can finish the preplastification process.Usually,the preplastification time is less than cooling time.
The injection device's backward in plastic injection molding process
Whether the injection device back or not is depended on the plastic's process technology.The injection device's backward can avoid lower temperature of the plastic material in nozzle by the long-term contact of the nozzle and mould.
Mould opening and piecework ejector in plastic injection molding process
When the plastic parts cool down ,the mould should be opened , with the function of the ejection system ,the workpiece can be ejected .
Dakumar injection machinery company is a subsidiary company ofSINOGROUPE company .We are the famous injection machine manufacturer and innovator in china .If there are anything we cna do for you please contact me,MISS MAY.

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