Extrusion & Post
6 مشاهدة
Annealing Deformation of PBT Products
ظاهرة المشكلة
PBT products deform during annealing treatment, and the dimensions change after annealing.
تحليل الأسباب
The annealing temperature is too high, approaching the softening point of PBT; there is no support or improper support during annealing; the release of internal stress of the product is accompanied by deformation.
الحل
Control the annealing temperature at 120-130°C; use fixtures to support and maintain the shape; raise and lower the temperature slowly.
الخلاصة الأساسية
PBT annealing deformation requires suitable tooling and heating rate.
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