飞机液压系统橡胶耐寒性指标述评

Review of the Requirements of Cold-Resistance of the Rubber Materials for Aircraft Hydraulic Systems

本文综述了各国对飞机液压系统所用橡胶的耐寒要求,并对各种耐寒试验方法与实际使用的相关性提出论述。对橡胶密封的耐寒试验来说,以低温回缩试验及压缩耐寒系数试验较为有意义。

This paper describes the requirements of cold-resistance of the rubber materials for aircraft hydraulic systems in some countries, and reviews the correlation between the test results of various cold-resistant test mathods and the practical application of the rubber seals. Thus, it is proposed that the method of the determination of low-temprature retraction to the rubber materials or the method of the determination of recovering coefficients after the compression at low temprature to the cold-resistant test of the rubber sealing materials is more significant.