Extrusion & Post
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ASA Recycling and Sustainability
Problem Phenomenon
【Problem Phenomenon】Feasibility and limitations of ASA product recycling
Cause Analysis
ASA can be recycled and reused but weather resistance additives are consumed with thermal history; performance decay of outdoor-grade regrind needs evaluation; co-extrusion core layer can use recycled material; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience
Solution
Regrind ratio controlled and weather resistance retention verified; co-extrusion core layer preferably uses recycled material; outdoor long-life parts limit regrind; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA recycling is feasible, weather resistance decay and co-extrusion core layer are the key points; 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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