Material Drying
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PPO Building Piping Parts
Fenómeno do problema
[Problem Phenomenon] Building hot and cold water piping parts need hydrolysis resistance and temperature resistance
Análise das causas
PPO has low water absorption, hydrolysis resistance and dimensional stability, and combined with PPX alloy covers building water management; long-term hydrostatic performance must be verified; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solução
Select PPO/PPX for building pipe parts and conduct long-term hydrostatic verification; design the connection method according to the material's weldability; assess hot and cold cycling; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
The PPO series has grades for building pipe parts, and long-term hydrostatic verification is the gatekeeper; 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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