Gardner Business Media

Hot Runner Technology OCT 2017

Gardner Research

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F E AT U R E 8 Hot Runner Technology By Steve Johnson Working on hot runner manifolds requires certain skills and training because of the heat expansion of the steel plates and compo- nents. If the mold and repair technician does not understand and cannot account for these effects, he or she may have trouble with mechanics, safety and effective processing. Developing a better maintenance plan for Breaking Down Hot Runner Maintenance Improving a manifold's maintenance plan requires specific skills and knowledge of its functioning areas. Images courtesy of MoldTrax Maintenance Solutions. manifold service or repair requires a gener- al knowledge of hot runner systems. That knowledge includes things like the system's components (fixed or valve gates, heaters, thermocouples, wiring paths), maintenance FIGURE 1: Verify thermocouple and heater connections to the correct pin on the electrical connectors and record the readings/results.

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