1 Increased cycle time should not be used as a solution for a molding problem, except as the very last resort to maintain the integrity of the molded parts.
2 Various processing changes are suggested as possible solutions for the different problems encountered during the molding of thermoset parts. In general, these changes should not exceed the recommended ranges presented in the previous sections on injection startup procedures.
3 This troubleshooting guide lists the processing problems in alphabetical order.
4 For each problem, the possible solutions are listed in the order of the most frequent to the least frequent solution for that problem.
5 Change only one processing variable at a time. Allow the press to cycle at a minimum of cycles and then thoroughly evaluate results before changing another processing variable.
6 Please keep in mind, that in order to resolve any given processing problem, a combination of the possible solutions may need to be applied.

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Horizontal Injection Molding Machine