Processing Machinery
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PET mineral water bottle
Problem Phenomenon
Lightweight water bottles deform and collapse during transport
Cause Analysis
Excessive lightweighting makes the bottle body wall too thin, and the compression resistance is insufficient under stacking and transport vibration; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
Lightweighting must synchronously optimize the bottle body reinforcing ribs and bottle shoulder structure; verify with stacking and transport simulation tests; after adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Lightweighting is premised on structural reinforcement and cannot simply reduce material; after confirming effectiveness, solidify 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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