Material Drying
7 مشاهدة
Product bubbles/internal pores
ظاهرة المشكلة
A large number of bubbles are visible after cutting the product open, and mechanical properties are significantly reduced
تحليل الأسباب
PEEK insufficiently dried with moisture content >0.02% (standard drying: 150°C/3h or 180°C/2h); processing temperature too high, material decomposes releasing gas; holding pressure insufficient to compact bubbles
الحل
Strictly implement drying standards (dew point <-30°C); check the performance and operating status of the drying equipment; increase holding pressure to 800-1000bar and extend holding time by 50%
الخلاصة الأساسية
Trace moisture at PEEK's extremely high processing temperature (>360°C) can produce a large number of bubbles
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!