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DVDReplication.co.nz >> CD Moulding


CD Moulding


CD moulding machines have an average through-put of 550-900 discs per hour, per moulding line. See-through polycarbonate pellets are initially dried at approximately 130 degrees Celsius for three hours. These are then fed by vacuum transfer into the one end of the injection moulder's drum and are moved to the injection compartment by way of a huge coil inside this drum. The drum is wrapped with heater bands, which melt the polycarbonate. As soon as the mould is closed, the screw moves forward to insert molten plastic into the mould hollow. Cold water runs through the mould halves outside the hollow, which cools the plastic so it becomes somewhat solid. The entire process takes 3 to 5 seconds.

 

 
 
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