Injection molding is a sensitive process. After implementing a stable process to achieve the required product quality, there are many potential external disturbances that might lead to downtimes or off-quality production. Machine manufacturers do a lot of research to adjust the process and react on external disturbances, e.g. varying residual moisture of the resin [1]. Disturbances coming from the central cooling unit, air compressors or the nitrogen generator can also lead to low product quality or high production costs, but have not been studied sufficiently as of today.
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