Processing Machinery
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PBT ultrasonic welding
Problem Phenomenon
Insufficient welding strength.
Cause Analysis
PBT can be ultrasonically welded but parameters need to match; crystalline materials have a narrow welding window.; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solution
①Optimize welding parameters; ②design energy directors; ③control welding pressure; ④conduct strength verification.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PBT ultrasonic welding requires specially developed parameters.; 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 similar problems in the future
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