Molds & Tooling
4 görüntüleme
PC/ABS black speck
Sorun Belirtisi
Black specks appear in parts.
Neden Analizi
Carbonized material in dead corners of the barrel and hot runner falls off; material contamination.; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based on experience alone; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Çözüm
①Thorough cleaning; ②shorten residence time; ③regular disassembly and inspection; ④strengthen material management.; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Temel Çıkarım
Black specks point to equipment cleanliness; regular machine cleaning is institutionalized.; 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 later
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