Injection Molding
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POM gate freezes quickly
Problem Phenomenon
The POM injection gate solidifies too quickly and cannot effectively compensate for shrinkage.
Cause Analysis
POM has a high crystallization temperature (about 130°C); the mold temperature is low and the gate area cools and crystallizes quickly.
Solution
Mold temperature 80-120°C to delay crystallization; enlarge the gate; increase the injection speed and temperature.
Key Takeaway
The quick freezing of POM gates needs to be dealt with by high-temperature molds.
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