Processing Machinery
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ASA Color Difference and Color Matching
Fenómeno do problema
【Problem Phenomenon】ASA colored products batch-to-batch color difference, outdoor parts color management difficult
Análise das causas
ASA color durability is its selling point, but processing thermal history and color masterbatch dispersion differences still cause color difference; outdoor application color difference is more amplified and inspected; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience
Solução
Lock temperature and residence parameters; color masterbatch precisely metered and dispersed; outdoor parts controlled by Delta E<3; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusão principal
ASA color difference controls thermal history and dispersion, outdoor parts look at Delta E; after confirming effectiveness, fix 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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