Processing Machinery
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PCABS barrel zone temperature
Problem Phenomenon
【Problem Phenomenon】PC/ABS barrel temperature one-size-fits-all, uneven plasticization or local degradation
Cause Analysis
Recommended zoning: rear zone 200-220℃, compression zone 220-240℃, metering zone 240-255℃, nozzle 245-260℃; progressive heating ensures uniform plasticization, nozzle not exceeding 260℃ to prevent degradation
Solution
Set progressively according to the zoning table; nozzle ≤260℃; measure actual melt temperature to calibrate each zone; 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 the parameter changes, to facilitate locating the effective measures
Key Takeaway
PC/ABS barrel 200 to 260℃ progressive, nozzle 260℃ is the upper limit; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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