Processing Machinery
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PC Electrical Insulation Applications
Problem Phenomenon
[Problem Phenomenon] Electrical insulation parts require high CTI and heat resistance
Cause Analysis
PC has good electrical insulation and relatively high CTI, used for electrical insulation parts and connectors; flame retardant grades are superimposed; heat resistance adapts to temperature rise; 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 PC for insulation parts; CTI according to voltage level; select flame retardant grades for flame retardant requirements; 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 has good electrical insulation; CTI and flame retardancy are selected as needed; 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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