Material Analysis
5 مشاهدة
Environmental stress cracking of high impact polystyrene products
ظاهرة المشكلة
Products crack when contacting specific chemical media while simultaneously bearing stress.
تحليل الأسباب
(1) Residual stress exists in the product, accelerated cracking under chemical media action
(2) Contact with incompatible chemical media (solvents, oils, etc.)
(3) Uneven product wall thickness, stress concentration areas easily crack
(4) Low material molecular weight, poor environmental stress cracking resistance
(5) High use environment temperature accelerates cracking
الحل
(1) Reduce product residual stress (annealing treatment)
(2) Avoid contact with incompatible chemical media
(3) Optimize product design, uniform wall thickness, reduce stress concentration
(4) Select high molecular weight grades
(5) Reduce use environment temperature
الخلاصة الأساسية
Environmental stress cracking is the result of the combined action of stress and chemical media.
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!