Injection Molding
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PEI Circuit Breaker Housing Process
Problem Phenomenon
In precision '2079851475616104452 of PEI circuit breaker housings, multiple problems of filling, stress, and dimensions are intertwined, and the process debugging cycle is long.
Cause Analysis
PEI circuit breaker housings require a combination of insulation, heat resistance, flame retardancy, and mechanical strength; the melting temperature of 340~380℃ places high requirements on equipment and molds; poor flowability makes complex structure filling difficult; cooling internal stress causes deformation and cracking.
Solution
①High-temperature configuration of precision '2079851475616104452 machines; ②uniform control of mold temperature at 140~180℃; ③multi-stage injection to balance filling and stress; ④full-item verification of dimensions and performance.
Key Takeaway
PEI electrical housings are a typical application of comprehensive performance requirements; the process window requires systematic debugging; full-item verification ensures the quality of safety parts.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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