In the 1990s, with the sustained and stable economic growth, China's passenger car manufacturing industry has shown a trend of prosperity. Various brands of CRRC continue to appear, and the application layers of various new processes and materials can not afford to emerge. Among them, it is worth noting that FRP plate (hereinafter referred to as FRP) is used for large panels. FRP plate has the advantages of high aging resistance, high strength, light weight, thermal insulation, edge, sound insulation, long service life, bright and comfortable appearance and fast forming Many advantages, such as low investment, adapt to modernization, multiple varieties and small batch, and meet the performance and requirements of modern passenger cars, such as environmental protection, low fuel consumption, comfort, ride comfort, durability, reliability, power and moderation. FRP outer skin plate has become the choice of outer skin material for medium-sized passenger cars.
1. Introduction to FRP bus outer skin plate
FRP outer skin plate is composed of thermosetting plastic and reinforced glass fiber, and its strength is greater than that of steel and aluminum. The product will not produce deformation and fission under mild and low temperature, and the thermal conductivity is low.
The density of FRP outer skin plate is 1.6 g / cm3, the weight is 4-5 times lighter than that of steel plate, and the strength is 1.7 times higher than that of steel plate. Therefore, the mechanical and physical properties of FRP are better than that of steel. It is an important engineering material. It solves the problems of traditional materials such as difficult cleaning, easy depression and deformation, difficult installation, poor durability, easy wear and poor impact resistance; All foreign bus manufacturers have used FRP outer skin plates
The product is resistant to aging, yellowing and easy to clean in strong corrosive environment, which meets the hygienic requirements.
2. Process introduction of FRP bus outer skin plate applied to bus
FRP skin is to apply the whole FRP plate to the front / rear wall or roof frame through adhesive. The whole front / rear wall skin with large curvature can be obtained by using FRP parts. It has the advantages of beautiful shape, convenient installation and operation, low labor intensity and production. Therefore, it is widely used in the production of passenger cars.