Molds & Tooling
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PMMA Winter Compensation
Problem Phenomenon
PMMA product cracking rate rises significantly in winter
Cause Analysis
Low workshop temperature makes actual mold temperature low, product internal stress increases, and brittleness rises accordingly; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based on experience alone.
Solution
Raise mold temperature by 5-10℃ in winter; keep products warm for slow cooling after demolding; workshop constant temperature management; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.
Key Takeaway
In winter, PMMA must be protected against quench stress, and slow cooling is a low-cost measure; 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 future problems.
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