Production & Quality
5 görüntüleme
Dimensional change with temperature/thermal expansion of high impact polystyrene products
Sorun Belirtisi
Product dimensions change at different temperatures, exceeding the tolerance range.
Neden Analizi
(1) High impact 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
Çözüm
(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
Temel Çıkarım
Thermal expansion is an inherent material characteristic; temperature effects need to be considered in design.
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