Processing Machinery
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PPS product black speck
Problembeschreibung
Black specks in the product.
Ursachenanalyse
Carbonized material at dead spots falls off; high-temperature processing has high carbonization risk.; 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
Lösung
①Thorough cleaning; ②shorten residence; ③regular disassembly and inspection; ④material management.; 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
Wichtigste Erkenntnis
Black specks point to equipment cleanliness; high-temperature materials require more frequent cleaning.; 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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