Material Drying
2 views
ASA Weld Line Bubble Convergence
Problem Phenomenon
【Problem Phenomenon】Bubbles converge at weld lines of ASA products, both strength and appearance poor
Cause Analysis
Convergence entrains air and the weld line area is at the venting end; when moisture is not fully removed, bubbles precipitate along weld lines more obviously; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based only on experience
Solution
Weld line area strengthen venting; ensure drying up to standard; adjust convergence position to avoid high-stress areas; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
ASA weld line bubbles check venting and drying, convergence position adjustable; 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
Was this helpful?
0 people found this helpful
Thank you for your feedback!