Processing Machinery
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PBT product heat distortion temperature
Problem Phenomenon
Deformation during high-temperature use.
Cause Analysis
Unreinforced PBT heat distortion temperature is limited; it can be significantly increased after reinforcement.; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first when troubleshooting
Solution
①Select reinforced grades for high-temperature use; ②evaluate use temperature; ③heat distortion test; ④manage the use range.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
PBT heat distortion temperature is improved by reinforcement; grade selection matches the working conditions.; 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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