Molds & Tooling
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ASA shutdown no-cleaning characteristic
Problem Phenomenon
[Problem phenomenon] ASA excessive cleaning waste after shutdown, or wrong emptying instead introduces problems
Cause Analysis
Fast Heat clearly states ASA shutdown procedure is special: machine and mold can shut down normally, no need to clean the ASA in the barrel or hot runner; this is different from most high-temperature materials
Solution
Normal shutdown directly turns off heating; long-time shutdown (several days) still recommends emptying to prevent oxidation; restart after sufficient preheating verifies first article; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA normal shutdown with material is a special case, long shutdown still recommends emptying; 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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