Material Drying
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PCABS Hydrolysis Resistance Evaluation
Problembeschreibung
[Problem Phenomenon] The performance retention of PC/ABS parts in hot and humid environments is in doubt
Ursachenanalyse
The PC phase in PC/ABS has hydrolysis sensitivity, and performance declines under long-term high temperature and high humidity; hot and humid working conditions require evaluation or selection of hydrolysis-resistant grades; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Lösung
Select hydrolysis-resistant grades for hot and humid parts; verify long-term hot and humid aging; dry processing to maintain molecular weight; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Wichtigste Erkenntnis
PC/ABS in hot and humid conditions needs evaluation, and hydrolysis-resistant grades are more stable; 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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