城市轨道交通用玻璃钢接触轨防护罩的研制

Manufacture of GRP Covers for Third Rails Used in Urban Rail Transit

介绍了玻璃钢防护罩在城市轨道交通中的应用及在该领域应用的要求。通过材料选择、工艺调整,成功研制适合于轨道交通用的玻璃钢防护罩产品。产品性能满足冲击强度≥700J/m,弯曲强度≥350MPa,电击穿强度≥5.5kV/mm和相应的耐燃性能指标。

The author describes the use of GRP covers for the third rails in urban rail transit and the technical re- quirements for this application. By properly selecting materials and adjusting the process technology, GRP covers suitable for rail strength, ≥350 cy specification. transit have been successfully developed, the properties of which have reached ≥700 J/m impact MPa flexural strength, ≥5.5 kV/mm electric breakdown strength and corresponding fire retardan-