Material Drying
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ABS silver streak drying misjudgment
Problem Phenomenon
ABS silver streak still appears after drying verification, nozzle heater leakage or back pressure too high.
Cause Analysis
ABS silver streak still appears after sufficient drying; nozzle heater seal leakage; excessive back pressure shear heat; material degradation; misjudged as a drying problem; equipment inspection omission.
Solution
①Drying verification confirmation; ②nozzle heater inspection; ③back pressure reduction; ④equipment leakage investigation; ⑤comprehensive diagnosis.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Post-drying equipment investigation of ABS silver streaks is in-depth diagnosis; nozzle heater and back pressure are common omissions; systematic adjustment.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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