Processing Machinery
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ABS barrel temperature gradient
Problem Phenomenon
ABS barrel temperature gradient setting, segmented control from feeding to nozzle.
Cause Analysis
ABS barrel temperature gradient; feeding zone, compression zone, metering zone, nozzle segmentation; nozzle 200-230°C slightly lower than barrel to prevent drooling; gradient affects plasticization and degradation; uniformity management.
Solution
①Appropriately low temperature in feeding zone; ②gradient temperature increase in compression and metering zones; ③nozzle 200-230°C; ④prevent drooling; ⑤gradient verification.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
ABS barrel gradient is fine temperature control; nozzle slightly lower to prevent drooling; verification ensures plasticization quality.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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