On September 21, the graphene-reinforced polyurethane composite fish plate passed the technical review organized by China Railway Zhengzhou Bureau Group Co., Ltd. With this as a sign, a new type of integrated insulated fishplate was successfully developed and will be officially put into use.
Graphene-reinforced polyurethane composite fishtail is jointly developed by Zhengzhou Bureau Group Co., Ltd. and Shanghai High-speed Railway Electric Technology Co., Ltd. It is a new type of integral insulating fishtail board product that can replace the mechanical insulation joints and adhesives currently used on railway operating lines The connection of insulation joints fundamentally eliminates the potential danger of mechanical insulation joints, such as trough insulation plates, insulation tubes and insulation gaskets, which can cause damage to train circuits due to the "red light band" of track circuits.
Before passing the technical review, the graphene-reinforced polyurethane composite fish plate has been tried out in Zhengzhou Bureau Group Company for more than 1 year. The research and development unit has made many improvements to the fishplate according to the trial situation. According to the person in charge of the review team, the graphene-reinforced polyurethane composite fishplates approved by the review team have the characteristics of good insulation performance, high mechanical strength, light weight, convenient installation, high temperature resistance coefficient, and maintenance-free, which can greatly reduce on-site cadres. The labor intensity of employees, saving the daily maintenance costs of the users, reducing the failure rate of track circuits, improving transportation efficiency, and ensuring the safety of trains are a revolutionary innovative product.