Extrusion & Post
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ASA shutdown cleaning specification
Problem Phenomenon
ASA shutdown cleaning only turns off heating and empties with ASA's own material, avoiding foreign material contamination.
Cause Analysis
ASA shutdown cleaning turns off heating and empties and purges the machine with ASA's own material; no need to use other materials for replacement due to contamination risk; foreign material mixing causes delamination and degradation; resumption quality.
Solution
①Shutdown turns off heating; ②ASA own material emptying; ③avoid foreign cleaning materials; ④resumption inspection; ⑤specification execution.; After adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA shutdown cleaning with own material emptying is a unique specification; foreign materials are taboo; execution prevents contamination.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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