Material Drying
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PCABS nozzle bubbling
Problem Phenomenon
Bubbling steam during PC/ABS nozzle purging, a signal of additional drying requirement.
Cause Analysis
If bubbling or steam appears during PC/ABS nozzle purging; it indicates additional drying is still needed; insufficient drying; residual moisture; immediate verification method.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone
Solution
①Nozzle purging observation; ②bubbling steam identification; ③additional drying; ④moisture content retest; ⑤verification before production.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PCABS nozzle bubbling is an immediate signal of insufficient drying; observation and retest are both important; verification ensures production quality.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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