Preparation method of resin fiber composite material vehicle door anti-collision component and method for connecting resin fiber composite material vehicle door anti-collision component with vehicle door

Abstract

The invention provides a preparation method of a resin fiber composite material vehicle door anti-collision component and a method for connecting the resin fiber composite material vehicle door anti-collision component with a vehicle door inner plate. The preparation method comprises the followings steps: thermoplastic resin and carbon fiber fabric are pre-impregnated to be processed into unidirectional pre-impregnated sheet materials, the unidirectional pre-impregnated sheet materials are laid and hot-pressed to form thermoplastic resin-carbon fiber fabric composite material laminating sheets according to an optimal laying scheme that anti-collision strength and high temperature resistance are ensured, and finally, hot-pressing is performed through a die so as to form the vehicle door anti-collision component; meanwhile, the vehicle door anti-collision component is connected onto the vehicle door inner plate in a fastening manner through an adhesive and mechanical mixing connecting mode innovatively; the application of resin fiber composite material in the vehicle door anti-collision component is realized firstly, and the prepared vehicle door anti-collision component has higher tensile strength, higher high temperature resistance, and higher connection strength with the vehicle door; meanwhile, on the premise that vehicle safety performance is not sacrificed, the vehicle weight is reduced greatly, NVH performance of the vehicle is improved, and a wide market promotion and application prospect is achieved.

Description

Technical field [0001] The present invention is the field of automobile parts manufacturing. It involves the preparation method and connection method of door -to -door anti -collision components, especially the preparation method of a resin fibrous composite material car door -proof and the connection method with the door of the door. Background technique [0002] Lightweight has now become the trend of the development of the world.The lightweight of the car is to reduce the quality of the car as much as possible under the premise of ensuring the intensity and safety performance of the car, thereby improving the power of the car, reducing fuel consumption, and reducing exhaust pollution.Carbon fiber composite materials are a choice for lightweight automobiles.With the decline in the cost of carbon fiber and the improvement of the processing technology, the application of carbon fiber composite materials in cars has also gradually shifted from racing and luxury cars to ordinary ma...

AI Technical Summary

Problems solved by technology

The current door anti-collision components basically use high-strength steel plates. Although they have high strength and are resistant to impact deformation, they have the following disadvantages: heavy weight, which is not conducive to the lightweight design of the vehicle, and poor corrosion resistance, which seriously affects the use. life

At present, there are also proposals to directly use carbon fiber materials as car door anti-collision components, but the current application of carbon fiber materials to replace steel materials on car door anti-collision components has the following technical problems: the strength and elongation of carbon fiber materials used as anti-collision components are low, carbon fiber The connection strength between the material anti-collision components and the inner panel of the car door is very poor, and the high temperature resistance of carbon fiber materials is poor, which cannot meet the high temperature baking of the body painting. These defects seriously limit the application of carbon fiber materials in the door anti-collision components

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