Processing Machinery
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PPS product material changeover cleaning
Fenómeno del problema
Material changeover contamination problems.
Análisis de la causa
Residual material carbonizes quickly at high temperature; cleaning is difficult.; 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 data and should be confirmed first during troubleshooting
Solución
①Use dedicated high-temperature purging material; ②thorough replacement; ③verify first article; ④record the process.; 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
Conclusión clave
PPS material changeover cleaning requires high-temperature dedicated 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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