Processing Machinery
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PVC Waterproof Membrane
Problem Phenomenon
Welded seams of PVC waterproof membrane leaked
Cause Analysis
Improper hot-air welding temperature and speed caused weak welds; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solution
Calibrate welding parameters; sample-check weld peeling; manage construction environment temperature; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
Membrane weld seams are guaranteed by parameters and sampling checks; 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 similar problems in the future
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