Thermoforming
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Uneven wall thickness of PET thermoformed products
Problem Phenomenon
After '2079851475616104458 of PET sheet, product wall thickness is severely uneven, with corners too thin or even ruptured.
Cause Analysis
Uneven sheet heating causes local temperature differences; forming mold temperature distribution is uneven; forming speed is too fast without full stretching.
Solution
Optimize zone control of the heating oven to make sheet temperature uniform (100-120°C); adjust mold temperature distribution; use plug-assist forming.
Key Takeaway
PET '2079851475616104458 wall thickness control depends on sheet heating uniformity and the forming process.
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