Extrusion & Post
8 مشاهدة
Poor dimensional accuracy of PET extruded profiles
ظاهرة المشكلة
Large cross-section dimensional fluctuation of PET extruded profiles, difficult to meet precision assembly requirements.
تحليل الأسباب
Unstable extruder output (rotation speed fluctuation or uneven feeding), insufficient or uneven sizing die cooling, unstable haul-off speed.
الحل
Use metering feeding device to stabilize supply; optimize sizing die cooling design; precisely control haul-off speed (closed-loop servo); stabilize extrusion temperature ±2°C.
الخلاصة الأساسية
PET profile dimensional accuracy requires stable control of the entire process.
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