Production & Quality
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Dimensional Change with Temperature/Thermal Expansion of acrylonitrile-styrene copolymer Products
문제 현상
The dimensions of the product change at different temperatures, exceeding the tolerance range.
원인 분석
（1）The thermal expansion coefficient of acrylonitrile-styrene copolymer is large, and temperature changes cause dimensional changes
（2）The product is used in a high-temperature environment, and thermal expansion causes the dimensions to increase
（3）The measurement temperatures are inconsistent, and the measurement results at different temperatures are different
（4）The product wall thickness is uneven, and the thermal expansion amounts of various parts are different
（5）The product is constrained and cannot expand freely, producing thermal stress
해결 방법
（1）Consider thermal expansion compensation in the design
（2）Determine the tolerance range according to the service temperature
（3）Measure the dimensions at the standard temperature (23°C)
（4）Optimize the uniformity of the product wall thickness
（5）Reserve expansion gaps in the design
핵심 요약
Thermal expansion is an inherent characteristic of the material, and the temperature influence needs to be considered in the design.
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