Processing Machinery
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PC barrel zone temperature
Problem Phenomenon
【Problem Phenomenon】PC barrel temperature setting jumps, uneven plasticization or local overheating
Cause Analysis
PC barrel progressive zoning: rear zone 270-285℃, middle zone 285-300℃, front zone 300-315℃, nozzle 295-310℃; progression ensures uniform plasticization
Solution
Set according to the progressive curve; nozzle slightly lower than the front zone to prevent drooling; measured melt temperature calibration；After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability；Change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
PC barrel 270 to 310℃ progressive, nozzle slightly lower to prevent drooling；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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