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Method for producing fender of vehicle

A production method and technology for fenders, which are applied in vehicle components, superstructure sub-assemblies, heating/cooling fabrics, etc., can solve the problems of inability to meet the performance requirements of fenders, large shrinkage and deformation, and high prices, and achieve high strength. , The effect of reducing weight, sound absorption and anti-stoning noise

Inactive Publication Date: 2011-06-29
WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing fenders are injection-molded, and its disadvantages are: heavy weight, high price, high noise, large shrinkage deformation, etc., which cannot meet the performance requirements of some cars for fenders

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The specification of the Shenlong W2 fender is L1850×W1400mm; the production process steps of the Shenlong W2 fender are as follows:

[0012] a. Softening treatment: Soften the PET and PP mixed fiber needle-punched surface blanket; when softening, use a suspended oven to soften the composite surface blanket of PET and PP, and the temperature of the upper heating zone of the oven is 350 ° C. The temperature in the lower heating zone is 440°C, and the drying time is 80s;

[0013] b. Press forming: Press and form the above softened composite surface blanket into a semi-finished product, the press forming time is 60s, and the forming pressure is 5MPa;

[0014] c. Waterjet cutting: Cut the semi-finished product pressed in step (b) with waterjet to obtain the fender of required specifications; when cutting with waterjet, the cutting water pressure is 40000-50000psi, and the cutting air pressure is 0.6-0.8mpa;

[0015] d. Inspection: inspect the fenders obtained in step (c), ...

Embodiment 2

[0017] The specification of Shenlong X7 fender is L1700×W1300mm. The production process steps of Shenlong X7 fender are as follows:

[0018] a. Softening treatment: Soften the PET and PP mixed fiber needle-punched surface blanket; when softening, use a suspended oven to soften the composite surface blanket of PET and PP, and the temperature of the upper heating zone of the oven is 320 ° C. The temperature of the lower heating zone is 420°C, and the drying time is 85s;

[0019] b. Press forming: Press and form the above softened composite surface blanket into a semi-finished product, the press forming time is 65s, and the forming pressure is 6MPa;

[0020] c. Waterjet cutting: Cut the semi-finished product pressed in step (b) with waterjet to obtain the fender of required specifications; when cutting with waterjet, the cutting water pressure is 40000-50000psi, and the cutting air pressure is 0.6-0.8mpa;

[0021] d. Inspection: inspect the fenders obtained in step (c), check wh...

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Abstract

The invention relates to a method for producing a fender of a vehicle, belonging to the technical field of automotive outer decoration processing. According to the technical scheme provided by the invention, the method for producing a fender of a vehicle comprises the following steps: a, softening treatment, wherein a composite felt is baked and softened in an oven, the temperature of an upper heating area in the oven is between 300 and 360 DEG C, the temperature of a lower heating area in the oven is between 400 and 450 DEG C, and the composite felt is baked in the oven for 65 to 95 seconds; b, compact forming, wherein the softened composite felt is compacted into a semi-finished product, the time for compact forming is between 50 and 70 seconds, and the compact pressure is between 5 and 8 MPa; c, water-jet cutting, wherein the semi-finished product obtained in the step (b) is cut by water jet to obtain a required fender, wherein the cutting water pressure is between 40,000 and 50,000psi, and the cutting air pressure is between 0.6 and 0.8MPa; and (d), inspection, wherein the fender obtained in the step (c) is inspected, and is packaged into a carton and put in storage. The method is easy to operate, can produce the fender with high strength and light weight, and is economical and environment-friendly.

Description

technical field [0001] The invention relates to a production method of a fender, in particular to a production method of an automobile fender, and belongs to the technical field of automobile exterior trim processing. Background technique [0002] Automobile exterior parts are generally installed on the exterior of the automobile body to play the role of beautification, protection, and sound insulation and sound absorption. In the era of more and more pursuit of high performance, environmental protection, energy saving, lightweight, and individualization, the exterior decoration of automobiles is the same as the performance of automobiles, and people are paying more and more attention to them; therefore, the requirements for automobile exterior decorations are also Higher and higher. In the prior art, performance indicators such as low weight, high strength, and sound absorption of fenders have become production bottlenecks, restricting the development of fenders. Most of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D25/16D06C7/02D04H3/10B26F3/00
Inventor 杨晓杰
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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