Processing Machinery
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ABS flame retardant part discoloration
Problem Phenomenon
[Problem Phenomenon] Flame retardant ABS discoloration after processing, flame retardancy in doubt
Cause Analysis
Flame retardant thermal decomposition; low temperature upper limit; bromine-based more sensitive; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry materials and should be confirmed first during troubleshooting
Solution
Take lower limit of temperature for flame retardant material; verify flame retardancy retention after discoloration; after adjustment, continuously sample to verify the effect, resume mass production only after confirming stability; change only one variable each time and record parameter changes to facilitate locating effective measures
Key Takeaway
ABS flame retardant material fears high temperature, check temperature for discoloration; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems later
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