Extrusion & Post
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ASA shrinkage 0.5-0.9
Problem Phenomenon
ASA extrusion grade shrinkage 0.5-0.9%, injection grade 0.4-0.7%.
Cause Analysis
ASA extrusion grade linear mold shrinkage 0.5-0.9%; injection grade 0.4-0.7%; grade differences; process influence; mold design; dimension management.
Solution
①Design according to grade shrinkage; ②extrusion injection differences; ③process stability; ④dimension verification; ⑤mold compensation.; After adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA shrinkage grade differences are the design basis; process stability ensures consistency; verification ensures accuracy.; After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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