Application of fiber reinforced thermoplastic composite material in molding and preparing automobile parts

Abstract

The invention relates to an application of a fiber reinforced thermoplastic composite material in molding and preparing automobile parts. The fiber reinforced thermoplastic composite material comprises a long fiber reinforced thermoplastic composite material and a continuous fiber reinforced thermoplastic composite material. An automobile part particularly prefers an automobile fender assembly; the automobile fender assembly comprises a fender supporting rod, a supporting rod base, a fender suspension frame and a taillight supporter; and the reinforcement body of the continuous fiber reinforced thermoplastic composite material is a three-dimensional fabric structure and / or a one-way tape structure. The application of the fiber reinforced thermoplastic composite material in molding and preparing the automobile parts is advantaged in that the material structure can be easily designed, the process is efficient, simple and convenient, the product performance is excellent and the application is easy to be industrially implemented.

Description

technical field [0001] The invention belongs to the technical field of molding and preparation of auto parts, and in particular relates to the application of a fiber-reinforced composite material in molding and preparing auto parts. Background technique [0002] Automobile lightweight is the current research hotspot in the automobile industry. Automobile lightweight mainly involves the structural design of parts and materials suitable for specific processing and molding. At present, carbon steel and aluminum alloy are the main materials in the field of automobile manufacturing, and the proportion of composite materials does not exceed 30%, which seriously restricts the development and application of composite materials in the field of automobiles. [0003] Despite the rapid development of automotive lightweight technology, the main factors that limit composite materials from playing an important role in the field of automotive lightweight include: [0004] (1) The absolute...

AI Technical Summary

Problems solved by technology

[0004] (1) The absolute strength of composite materials is not as good as that of metal materials, and the simple replacement of metal materials with composite materials cannot meet the application requirements in terms of mechanical properties;

[0005] (2) During the application of composite materials in the automotive field, the structural design of the parts is not enough, and the advantages of the designability of the composite material structure are not fully utilized, which limits its further application in auto parts;

[0006] (3) Traditional composite materials, due to their backward preparation technology, high cost, and basic physical properties cannot meet the requirements of lightweight auto parts for high performance materials

In the context of the increasing development of automobile lightweight technology, the lightweight of key components is very urgent, but the technology represented by stamping and welding of metal materials has fallen behind and cannot meet the technical requirements of lightweight, nor can it meet the needs of automobile parts. Technical Requirements for Lean Production of Components

For example, Chinese patents such as CN201210300260, CN201010543461, CN201110366114, CN201210118977, and CN200910163728 are mainly related to the preparation method of short fiber reinforced thermoplastic materials, but the obtained parts cannot be used as automotive structural parts, and it is difficult to achieve the effect of lightweighting auto parts

The Chinese patent No. CN201210574838 mainly relates to the preparation method of mixed alloy materials containing fiber-reinforced nylon and polypropylene materials. The processing temperature window of nylon and polypropylene materials is difficult to coordinate. During subsequent processing, nylon is prone to poor plasticization when the temperature is too low, and the temperature is too high Circumstances that will cause the degradation of the polypropylene material