Composite board of lining material for railway box car

Abstract

The invention discloses a railroad boxcar lining material composite plate. According to the invention, an aluminum plate surface is subjected to a roughening treatment, and is sprayed with a wear-resistant coating; the coated aluminum plate is impregnated in a paint; and after curing, the railroad boxcar lining material composite plate is obtained. Various components such as ceramic component, boron, nickel, tungsten and iron are added in the wear-resistant coating. The ceramic component is dispersed in the coating as a wear-resistant component, such that the mechanical performance of the coating is improved. The components such as boron, nickel, tungsten and iron are bonding components in the coating, such that the ceramic component is firmly fixed on the surface of the aluminum plate. Iron is an amorphous phase component, and forms an amorphous structure during the coating process, such that the mechanical performance of the coating is further improved, and good bonding strength between the coating and the aluminum plate surface is ensured, such that peeling is prevented. A high-molecular composite coating is then impregnated and cured on the outer surface of the coating, such that a self-lubricating effect is achieved with the low friction coefficient of the high-molecular material, and friction resistance between each other is reduced. Therefore, a wear-resisting effect is achieved.

Description

technical field [0001] The invention relates to an accessory material of a rail transit facility, in particular to a composite board of a railway box car inner lining material. Background technique [0002] The railway boxcar is a kind of railway freight car. In order to improve the internal loading environment of the railway freight car, the railway freight car such as the P64 type box car is equipped with an inner lining, and non-metallic beading, metal seat plate, non-woven fabric, etc. are used for heat insulation. . Due to the needs of carrying goods, the railway box car requires the inner lining board of the car to have certain mechanical properties, appearance quality, impact resistance, wear resistance and other properties, but the use of pure rigid materials will cause bump cracks and fatigue fractures after long-term use In other cases, it is easy to separate and lose, and the above-mentioned materials have poor thermal insulation performance. Therefore, it is of ...

AI Technical Summary

Problems solved by technology

Due to the needs of carrying goods, the railway box car requires the inner lining board of the car to have certain mechanical properties, appearance quality, impact resistance, wear resistance and other properties, but the use of pure rigid materials will cause bump cracks and fatigue fractures after long-term use In other cases, it is easy to separate and lose, and the above-mentioned materials have poor thermal insulation properties. Therefore, it is of great practical significance to study a lining material with excellent mechanical properties and long-term thermal insulation effect.