Material Analysis
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ASA temperature window medium characteristic
Problem Phenomenon
[Problem phenomenon] ASA process window narrow feeling obvious, temperature control instability immediately produces defects
Cause Analysis
ASA temperature window is medium: requires fairly precise and stable temperature control; heating system aging, thermocouple drift make actual values deviate from settings, defects follow
Solution
Regularly calibrate heater bands and thermocouples; melt temperature air-shot measurement verification; temperature control system included in inspection plan; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA temperature window medium requires precise control, calibration is basic skill; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for subsequent similar problems
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