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Term Definition

Rapid Heat Cycling Moulding - also known as hot and cold moulding, or steam moulding. This process is similar to conventional moulding with the following exception. Prior to the injection phase, the tool is heated to approx 150c by pumping steam through specially detailed channels within the mould. Upon reaching the set temperature the injection phase takes place. After injection, the steam is evacuated from the mould and cooling water is pumped through. The advantage of this type of process is that it is possible to achieve high gloss parts without visible weld lines, in a relatively short cycle time.