Molds & Tooling
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PTFE Demolding Damage
Fenómeno del problema
PTFE preforms are damaged during demolding, cracks appear after sintering, improper demolding operation.
Análisis de la causa
Preforms have low strength and are easily damaged during demolding; too fast pressure release after pressing completion causes product bursting; improper demolding tools; rough operation.; When troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solución
①Release pressure slowly after pressing completion to prevent bursting; ②Demold carefully to avoid collision; ③Appropriate demolding tools; ④Handle preforms gently.; After adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Conclusión clave
PTFE preforms are fragile intermediates; pressure release speed and demolding protection are equally important; operation specifications protect semi-finished products.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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