Molds & Tooling
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TPU Mold Temperature 20-70°C
Problem Phenomenon
Poor product surface gloss and high internal stress, or excessively high mold temperature prolonging the cycle and causing demolding deformation
Cause Analysis
TPU mold temperature affects surface quality and internal stress: low mold temperature gives rough surface and high stress; mold temperature 20-70°C is adjusted according to hardness, and high-hardness parts can use a higher mold temperature
Solution
①Mold temperature conventionally 20-70°C; ②High-hardness parts take the upper limit; ③When surface requirements are high, appropriately increase the mold temperature; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
TPU mold temperature is the balance between surface and stress; fine-tune within the 20-70°C range according to hardness and appearance requirements; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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