Molds & Tooling
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PCABS hot runner temperature
Fenómeno do problema
【Problem Phenomenon】PC/ABS hot runner gate defects, improper temperature control
Análise das causas
Hot runner temperature matches the barrel at 240-260℃; local overheating causes PC degradation, low temperature causes cold material blockage; sufficient preheating at start-up; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solução
Hot runner 240-260℃ zoned closed-loop; sufficient start-up preheating; regularly check thermocouples; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PC/ABS hot runner 240-260℃, preheating and temperature control are both important; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems later
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