Composite bush

Abstract

The invention discloses a composite bush. Engineering plastic is used as a matrix of the composite bush, a carbon nanotube reinforcement is prepared on the matrix, and a flame-retardant film is arranged on the outer surface of the carbon nanotube reinforcement. While the using strength and hardness are guaranteed, the weight can be reduced effectively, reinforcement fibers are added in the matrix in a preparation process, in a carbon nanotube reinforcement preparation process, a functional organic compound and a functional oligomer, namely coupling agents, are used, functional multi-walled carbon nanotubes and glass fibers are linked well to obtain the reinforcement which has excellent mechanical properties, shearing strength between layers and toughness, while the adhesive force between the carbon nanotubes and the glass fibers is improved, the distance between the carbon nanotubes and the glass fibers is increased through the structural design of active organic molecules, flexibility of the carbon nanotubes is improved, and the toughness of the carbon nanotubes is played fully; and meanwhile, the composite bush has good wear resistance and corrosion resistance.

Description

technical field [0001] The invention relates to an accessory for railway transportation, in particular to a bush made of composite material. Background technique [0002] As a kind of ring sleeve that acts as a gasket, the bushing is of great significance in mechanical use. The use of the bushing can effectively prevent the damage of the parts. During the maintenance process, there is no need to replace the parts, only the bushing needs to be replaced, which can Cost savings to a large extent. Aubey bushing is a bush made of ductile iron, which is mainly used in railway transport vehicles. In order to achieve various effects such as wear resistance and anticorrosion, there are various requirements for the preparation material, treatment process and surface of Aubey bushing. Due to the limitation, the preparation process is complicated and the yield rate is not high. At the same time, nodular cast iron is used as the main preparation raw material, which is heavy and inconven...

AI Technical Summary

Problems solved by technology

Orbe bushing is a bush made of ductile iron, which is mainly used in railway transport vehicles. In order to achieve various effects such as wear resistance and anticorrosion, there are various requirements for the preparation material, treatment process and surface of Orbe bush. Due to the limitation, the preparation process is complicated and the yield is not high. At the same time, nodular cast iron is used as the main raw material for preparation, which is heavy and inconvenient to replace.