▎ 摘　　要

NOVELTY - The utility model claims a high molecular composite material once forming rail vehicle shell, comprising a rail vehicle shell main body, the outer side of the rail vehicle shell main body is provided with a protective frame member, the rail vehicle shell main body comprises a first wearable protective layer, the inner side of the first wearable protective layer is connected with a first corrosion resistant layer; one side of the first corrosion resistant layer is connected with an impact resistant layer; the inner side of the impact resistant layer is connected with a first high temperature resistant layer. The utility model is composed of a first wear-resistant protective layer made of graphene and epoxy resin; the first corrosion resistant layer is made of polytetrafluoroethylene and paraffin material; The anti-impact layer prepared by mixing high molecular matrix resin and toughening agent and the first high temperature resistant layer prepared by mixing polyimide and flame retardant, so as to effectively improve the wear-resistant performance of the rail vehicle shell main body, corrosion resistance, impact resistance and high temperature resistance.