The molding temperature control system is a very important factor in injection moulddesign .The injection molding means mould acts as the heat exchanger to make 200℃ plastic melt cool to finalize.The molding temperature control system will make an impact on the injection mould quality and the production efficiency . The mould temperature demand depends on the type of plastic raw material and the quality of plastic parts . If the molding temperature is above 80℃，the heating system should be set .
The following are what molding temperature control system influence on :
The quality of plastic products ,including the dimensional accuracy, shape accuracy,mechanical property ,surface quality .
The productivity,it is 2/3 of the total injection cycle time.Shortening the cooling time is the key improvement of productivity.
In order to improve the efficiency of the cooling system and the cavity surface's temperature uniform distribution ,cooling system should be designed as follows :
The layout of cooling system should be considered earlier than the demould mechanism.
Ensure the center distance of the cooling pipe and the distance between cooling pipe and cavity wall.
Lower the temperature difference of water in and out .
Strengthen the cooling efficiency upon the gate.
Cooling channels shouldn't be set on the weld line.
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