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A kind of automobile fender and its manufacturing method

A manufacturing method and fender technology, applied to vehicle parts, upper structure sub-assembly, transportation and packaging, etc., can solve the problem that the requirements of noise reduction, icing resistance and impact resistance cannot be met at the same time, and fenders cannot meet the requirements at the same time Noise reduction, ice resistance, impact resistance requirements and other issues, to achieve the effect of ensuring appearance, hardness improvement, and excellent impact resistance

Active Publication Date: 2022-07-22
WUXI GISSING AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of fender for automobiles to solve the problem that the fenders for automobiles in the prior art cannot meet the requirements of noise reduction, anti-icing and impact resistance at the same time
[0005] Another object of the present invention is to provide a method for manufacturing a fender for automobiles, so as to solve the problem that the fenders produced by the fender for automobiles in the prior art cannot meet the requirements of noise reduction, ice resistance, and impact resistance at the same time The problem

Method used

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  • A kind of automobile fender and its manufacturing method

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Embodiment 1

[0029] In this embodiment, a fender for an automobile includes a bottom layer and a surface layer, the bottom layer and the surface layer are compounded by a needle punching process, and the materials used for the surface layer are PP fibers and low-melting PET fibers mixed in a ratio of 7:3 and then passed through a needle. The thorn process is formed, the PP fiber in the surface layer material is used as the main fiber of the surface layer, the low melting point PET fiber is used as the surface layer bonding fiber, and the gram weight per unit area of ​​the surface layer material is 250g / m2 2 ; The material used for the bottom layer is made of PET fiber, low melting point PET fiber and PP fiber in a ratio of 5:3:2 and then formed by acupuncture process. In the bottom layer material, PET fiber is used as the bottom layer main fiber, and low melting point PET fiber is used as the bottom layer bonding fiber , PP fiber is used as the auxiliary fiber of the bottom layer, and the w...

Embodiment 2

[0044] In this embodiment, an automobile fender includes a bottom layer and a surface layer. The bottom layer and the surface layer are compounded by a needle punching process. The thorn process is formed, the PP fiber in the surface layer material is used as the main fiber of the surface layer, the low melting point PET fiber is used as the surface layer bonding fiber, and the gram weight per unit area of ​​the surface layer material is 200g / m2 2; The material used for the bottom layer is made of PET fiber, low melting point PET fiber and PP fiber in a ratio of 4:3:3 and then formed by acupuncture process. , PP fiber is used as the auxiliary fiber of the bottom layer, and the weight per unit area of ​​the bottom layer material is 400g / m 2 ; The melting point of the surface layer bonding fiber is lower than the melting point of the surface layer main fiber, and the melting point of the surface layer main fiber and the surface layer bonding fiber is lower than the melting point...

Embodiment 3

[0053] In this embodiment, an automobile fender includes a bottom layer and a surface layer. The bottom layer and the surface layer are compounded by a needle punching process. The thorn process is formed, the PP fiber in the surface layer material is used as the main fiber of the surface layer, the low melting point PET fiber is used as the surface layer bonding fiber, and the gram weight per unit area of ​​the surface layer material is 500g / m2 2 ; The material used for the bottom layer is made of PET fiber, low melting point PET fiber and PP fiber in a ratio of 6:2:2 and then formed by acupuncture process. In the bottom layer material, PET fiber is used as the bottom layer main fiber, and low melting point PET fiber is used as the bottom layer bonding fiber , PP fiber is used as the auxiliary fiber of the bottom layer, and the weight per unit area of ​​the bottom layer material is 1300g / m 2 ; The melting point of the surface layer bonding fiber is lower than the melting poin...

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Abstract

The invention discloses a fender for automobiles and a manufacturing method thereof. The fender for automobiles comprises a bottom layer and a surface layer, the bottom layer and the surface layer are compounded by a needle punching process, and the materials used for the surface layer include a main surface layer. The fiber and the surface layer bonding fiber, the material used in the bottom layer includes the bottom layer main fiber, the auxiliary fiber and the bottom layer bonding fiber, the melting point of the surface layer bonding fiber is lower than the melting point of the surface layer main fiber, and the surface layer main fiber is The melting point of the fibers and the bonding fibers of the surface layer is lower than the melting point of the main fibers of the bottom layer, so that the main fibers of the bottom layer are not melted when the main fibers of the surface layer, the bonding fibers of the surface layer and the bonding fibers of the bottom layer are melted. The surface layer and the bottom layer of the above-mentioned automobile fenders are made of fiber materials with sound-absorbing effect, and then the surface layer fibers are heated to a molten state, and the surface is smoother after being shaped by a cold roll. As a result, the overall structure becomes porous, smooth and hard, with good sound absorption, ice resistance and impact resistance.

Description

technical field [0001] The invention belongs to the technical field of automobile exterior parts, and in particular relates to a fender for automobiles and a manufacturing method thereof. Background technique [0002] The fenders are installed above the tires and below the sheet metal. They belong to the exterior parts of the car and can be used to block tire noise, rainwater and mud. During the driving process of the car, the friction and impact of the tire and the road produce noise, which seriously affects the driving experience of the vehicle. At the same time, some countries have added exterior noise to vehicle exterior trim regulations. In addition, when the vehicle is driven in ice and snow weather, the ice and snow are easily adhered to the fenders under the driving of the tires. When the ice layer is too thick, the running tires will shake up and down and hit the fenders. In addition, when the vehicle is driving, items such as gravel will be splashed, and it will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D25/16
CPCB62D25/16B62D25/161
Inventor 李方亮
Owner WUXI GISSING AUTO PARTS CO LTD