Material Drying
8 görüntüleme
Silver Streaks in PCTG Injection Molded Products
Sorun Belirtisi
Silver or white fine streaks appear on the surface of PCTG products.
Neden Analizi
The raw material moisture content is high (>0.05%), and the water vaporizes during processing to produce silver streaks; the back pressure is insufficient and the barrel contains air.
Çözüm
Fully dry to moisture <0.03%; increase the back pressure to 0.5-1.0MPa for venting; reduce the barrel temperature.
Temel Çıkarım
PCTG silver streaks mainly originate from moisture and gas.
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