Natural exposing tests in humid tropics atmosphere environment and accelerated ageing tests for 210 coat test samples of domestic automotives are carried out.
对国产汽车所用210种涂层试样进行了湿热带大气环境自然曝晒试验及人工加速老化试验。
In this paper, the characteristics of natural and accelerated aging of rubber product is discussed. Also, the method and procedure of accelerated ageing tests and the test results are presented.
文中讨论了橡胶制品的自然老化与加速老化的特点，介绍了固体火箭发动机用橡胶制品加速老化试验的方法和步骤，并给出了试验结果与结论。
The changes in mechanical and physical properties and chemical structure of polyvinyl formal (PVFM) foam caused by hygrothermal ageing tests were studied by means of IR and other measuring methods.
用红外光谱和其他测试方法对聚乙烯醇缩甲醛(PVFM)泡沫材料湿热老化前后力学性能、物理性能和化学结构的变化进行了研究。
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