Processing Machinery
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PC Flame Retardant Part Discoloration
Fenómeno do problema
[Problem Phenomenon] Flame retardant PC discolors after processing, raising flame retardancy concerns
Análise das causas
Flame retardant thermal decomposition; low temperature upper limit; bromine-based is more sensitive; when troubleshooting on site, verify each item according to this mechanism one by one, and avoid blindly adjusting the machine based on experience alone; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Take the lower temperature limit for flame retardant materials; verify flame retardancy retention for discolored parts; after adjustment, take samples continuously to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes, so as to locate effective measures
Conclusão principal
PC flame retardant materials fear high temperature; for discoloration check the temperature; 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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