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开发了一种机车车辆用长寿命橡胶软管，其外层采用合成橡胶，中层为聚酯纤维，内层为天然橡胶。通过性能测试表明，其耐压特性和拉伸特性能充分满足JIS标准值的要求；在2000h紫外线暴露、100℃·96h加热以及20％动态拉伸条件下，在50pphm浓度的臭氧中暴露24h的促进老化试验中显示出良好的耐久性。鉴于长寿命橡胶软管具有优越的基本性能和耐久性,认为可供现车长期使用。
Developed a long-life rubber hose for rolling stock, the outer layer of synthetic rubber, the middle layer of polyester fiber, the inner layer of natural rubber. The performance tests show that the pressure-resistant and tensile properties can fully meet the requirements of JIS standard values. Exposure to 50 ppm of ozone for 24 h under UV exposure at 2000 h, heating at 100 ° C. and 96%, and dynamic stretching at 20% Promote aging tests show good durability. In view of the long-life rubber hose with superior basic performance and durability, that is available for long-term use of cars.