Production & Quality
8 مشاهدة
Dimensional change with temperature/thermal expansion of polystyrene products
ظاهرة المشكلة
Product dimensions change at different temperatures, exceeding the tolerance range.
تحليل الأسباب
(1) Polystyrene has a large thermal expansion coefficient; temperature changes cause dimensional changes
(2) Products used in high-temperature environments, thermal expansion causes dimensional increase
(3) Inconsistent measurement temperature, different measurement results at different temperatures
(4) Uneven product wall thickness, different thermal expansion amounts at various locations
(5) Product is constrained and cannot expand freely, producing thermal stress
الحل
(1) Consider thermal expansion compensation in design
(2) Determine the tolerance range according to use temperature
(3) Measure dimensions at standard temperature (23°C)
(4) Optimize product wall thickness uniformity
(5) Reserve expansion gaps in design
الخلاصة الأساسية
Thermal expansion is an inherent material characteristic; temperature effects need to be considered in design.
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