Injection Molding
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Leakage of PBT '2079851475616104452 Hot Runner System
Problem Phenomenon
The hot runner system leaks at the high temperature of PBT.
Cause Analysis
The hot runner sealing components creep or fatigue under long-term high temperature; the installation pre-tightening force is inappropriate; the thermal expansion is uneven.
Solution
Use a hot runner sealing system suitable for the PBT processing temperature; regularly check the seal; pre-tighten according to specifications.
Key Takeaway
PBT hot runner leakage requires high-temperature-resistant design and maintenance.
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