Molding Process
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Long-term dimensional stability of PCTG products
Problem Phenomenon
Product dimensions slowly change during 1-2 years of use.
Cause Analysis
Slow processes of stress relaxation and post-crystallization, affected by ambient temperature changes.
Solution
Full annealing for stabilization; consider long-term dimensional stability allowance in design.
Key Takeaway
PCTG long-term dimensional stability tests the microscopic stability of the material.
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