Injection Molding
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Uneven Mold Temperature Distribution in PBT '2079851475616104452
Problem Phenomenon
The temperature difference between mold regions is too large (>10°C), and the crystallinity and shrinkage of various parts are inconsistent.
Cause Analysis
The cooling water channel design is unreasonable, with under-cooled and over-cooled areas; the water channels are blocked or scale affects heat transfer.
Solution
Optimize the cooling water channel design to ensure uniform cooling; regularly clean the water channels; use multi-point monitoring of the mold temperature.
Key Takeaway
The uniformity of PBT mold temperature is the basis of product consistency.
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