Processing Machinery
2 views
TPE Barrel Residual Pressure
Problem Phenomenon
The first shot drools when restarting after TPE shutdown
Cause Analysis
Residual pressure causes the melt to seep out; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience; this mechanism has been repeatedly verified by industry information and should be confirmed first during troubleshooting
Solution
Suck back to release pressure at shutdown; air shot to purge clean at restart; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Key Takeaway
Release pressure at shutdown and purge clean at startup; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems in the future
Was this helpful?
0 people found this helpful
Thank you for your feedback!