Material Drying
13 görüntüleme
Product bubbles and silver streaks
Sorun Belirtisi
Bubbles and silver streaks appear inside and on the surface of PES products
Neden Analizi
Insufficient drying with moisture content exceeding the standard (PES requires 150°C/3-4h drying); processing temperature too high exceeding 370°C causing slight decomposition; holding pressure and compaction degree insufficient
Çözüm
Strictly implement the 150°C/3-4h drying standard; control barrel temperature at 310-370°C; increase holding pressure and time for full compaction
Temel Çıkarım
PES processing is extremely sensitive to moisture; drying is the first quality control point
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