Processing Machinery
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POM lighter parts
Fenómeno do problema
The POM gas seal of the lighter leaks
Análise das causas
Long-term contact with butane gas causes slight permeation of POM, and the precision sealing surface creeps and relaxes; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solução
Select gas-permeation-resistant grades; match the sealing surface with metal; test according to gas leakage standards; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusão principal
Gas seals are specially verified for permeation and creep; after confirming effectiveness, fix 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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