Processing Machinery
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PC Flame Retardant Halogen-Free Trend
Problem Phenomenon
[Problem Phenomenon] RoHS requirements for electronic parts; selection of PC flame retardant system
Cause Analysis
Halogen-free flame retardant PC (phosphorus-based) meets RoHS with low smoke and low toxicity; the mainstream direction for electronics and electricals; performance comparable to halogenated but temperature 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
Solution
Select halogen-free flame retardant PC for compliant parts; take the lower limit of the processing temperature; Yellow Card check; 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
Key Takeaway
PC halogen-free flame retardant is the RoHS mainstream; 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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