Processing Machinery
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GPPS Product Deformation from Insufficient Heat Resistance
Problembeschreibung
The product softens and deforms in a higher temperature environment.
Ursachenanalyse
GPPS heat distortion temperature is about 80~90°C, and deformation occurs when the use temperature exceeds the limit; molding internal stress also reduces actual heat resistance performance.; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Lösung
①Evaluate the use temperature and select a suitable grade; ②reduce internal stress; ③switch to heat-resistant materials for high-temperature applications; ④do heat distortion tests.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Wichtigste Erkenntnis
GPPS heat resistance is limited; application matching is the basic principle of material selection.; 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 in the future
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