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对运输腐蚀或磨蚀货物的车辆,加强其车体内表面的保护,可以明显地延长车辆的使用寿命。运输煤炭、盐、砂和硼砂等货物的车辆远在车辆规定的报废期限之前车体就损坏了。煤炭是铁路运量最大的货物,在这方面存在的问题最大。在货车车体内表面通常涂装环氧树脂,或聚氨酯来解决防腐问题。环氧树脂具有良好的抗腐蚀性,也有相当好的耐冲击、耐磨蚀性。然而,它的耐气候性差,易变脆、粉化。
For the transport of corrosive or abrasive goods vehicles, to enhance the protection of the body surface can significantly extend the service life of vehicles. Carloads of cargoes such as coal, salt, sand and borax were damaged as far as the vehicle’s deadline. Coal is the largest cargo of railways and there are the most problems in this regard. In the van body surface usually coated with epoxy resin, or polyurethane to solve the problem of corrosion. Epoxy resin has good corrosion resistance, but also has a very good impact resistance, abrasion resistance. However, its weatherability is poor, brittle and dusty.