Processing Machinery
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PPO Foamed Structural Part Weight Reduction
Fenómeno do problema
[Problem Phenomenon] Large structural parts need weight reduction while maintaining rigidity and flame retardancy
Análise das causas
PPO foam grades (FN85, FMC3008 reinforced, SFG series) are UL94 V-0; foaming reduces specific gravity while maintaining rigidity; business machine housings and large panels are typical applications
Solução
Select foam grades for weight-reduced structural parts; verify the balance between expansion ratio and rigidity; retest the flame-retardant rating after foaming; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
PPO foaming reduces weight while maintaining rigidity and flame retardancy, a sharp tool for large structural parts; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
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