Sound absorption type fender and forming method thereof

Abstract

The invention provides a sound absorption type fender and a forming method thereof, the forming method comprises the steps: drying and heating a fender base material of a double-layer structure, wherein the double-layer structure comprises a polypropylene layer and a polyester layer, and the heating temperatures of two sides of the fender base material are different; placing the dried and heated fender base material in a mold to be subjected to compression molding, to obtain a semi-finished fender product; and installing the semi-finished fender on the assembling tool to obtain the automobile fender. According to the fender, the layered composite board serves as a base material, different heating temperatures are selected according to different materials in the board in the forming process, and then the steps of pressing forming, structure assembling and the like are conducted, so that the prepared mudguard has good sound absorption and sound insulation performance, is light in weight and high in strength and meets the requirement for light weight of an automobile; the forming method is simple to operate, safe and stable in process, low in raw material and operation cost, high in production efficiency, high in yield and wider in application prospect, and the manufacturing cost is saved.

Description

technical field [0001] The invention belongs to the technical field of automobile decoration parts, and relates to a sound-absorbing fender and a forming method thereof. Background technique [0002] With the continuous improvement of people's living standards, cars have increasingly become a travel tool for many families, and with the increasing pursuit of high performance, comfort, and lightweight of cars, the exterior decoration of cars has also become the first choice for people to buy cars. an important factor. The car fender is a plate structure installed on the outer frame of the wheel. It is customized according to different models. It can prevent small hard objects or muddy water from splashing on the car body during driving, and the impact of the tires on the car body due to the uneven road surface, avoiding damage to the car body. , to protect the body. [0003] At present, the material selection of automobile fenders mainly includes rubber or plastic. Most of t...

AI Technical Summary

Problems solved by technology

[0005] CN 104213360A discloses an automobile fabric fender and its preparation method. The fender is made of a needle-punched surface blanket, which contains 40-50 parts by weight of low-melting fiber, 10-15 parts by weight of hollow fiber, 40-50 parts by weight 50 parts by weight of polyester fibers, the low-melting-point fibers are low-melting-point fibers of modified PET, and the hollow fibers are hollow PET fibers; the preparation method is to mix various fibers, carding and then carry out fiber web needle punching, and then sequentially make the needle-punched surface Blanket pre-setting, drying and softening treatment, press molding and water jet cutting to prepare the finished fender; however, although the fender uses a variety of fibers, it still belongs to a single-layer structure when used in combination, and the various fibers are homogeneous. It is a modified fiber of PET, the cost of raw materials is high, and the preparation process of needle-punched blankets and fenders is relatively complicated, and the operation cost is relatively high

Images