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A new type of outer wheel cover felt material for passenger cars and its preparation method

A technology for outer wheel cover and passenger car, which is applied in chemical instruments and methods, vehicle components, lamination and other directions, can solve the problems of short wheel cover life, wheel cover damage, tire interference damage, etc., and achieve long wheel cover life and sound absorption. The effect of good performance and high production efficiency

Active Publication Date: 2017-10-31
浙江华江科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, few felt wheel cover materials currently on the market have all the above advantages. If the sound absorption performance is good, the rigidity will decrease accordingly. Damage to the wheel cover, the life of the wheel cover is short; the rigidity, the material is compact, and the sound absorption performance will be reduced

Method used

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  • A new type of outer wheel cover felt material for passenger cars and its preparation method
  • A new type of outer wheel cover felt material for passenger cars and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Three carding machines respectively control the laying of the three-layer structure of the sound-absorbing layer 3, the cushioning and shock-absorbing layer 4, and the rigid support and impact-resistant layer 5. specific:

[0033] 1. Carding and needle punching into felt

[0034] 1. Put polyester fiber and modified polypropylene fiber into the first carding machine. After carding, a rigid support impact-resistant layer is formed, and the rigid support impact-resistant layer fiber web is evenly spread on the conveyor network by cross-laying. on the curtain;

[0035] 2. Put low-melting-point modified polyester fibers and high-elastic polyester fibers with a melting point of 185°C into the second carding machine. After carding, the cushioning and shock-absorbing layer 4 is formed. The laying method is evenly laid on the fiber net of the rigid support impact-resistant layer; the low-melting point modified polyester fiber is a skin-core composite structure, the skin layer ...

Embodiment 2

[0046] Three carding machines respectively control the laying of the three-layer structure of the sound-absorbing layer 3, the cushioning and shock-absorbing layer 4, and the rigid support and impact-resistant layer 5. specific:

[0047] 1. Carding and needle punching into felt

[0048] 1. Put polyester fiber and modified polypropylene fiber into the first carding machine. After carding, a rigid support impact-resistant layer is formed, and the rigid support impact-resistant layer fiber web is evenly spread on the conveyor network by cross-laying. on the curtain;

[0049] 2. Put low-melting-point modified polyester fibers and high-elastic polyester fibers with a melting point of 165°C into the second carding machine. After carding, the buffer and shock-absorbing layer 4 is formed, and the fiber web of the buffer and shock-absorbing layer 4 is passed through the cross The way of laying the net is evenly laid on the fiber net of the rigid support impact-resistant layer;

[00...

Embodiment 3

[0060] Three carding machines respectively control the laying of the three-layer structure of the sound-absorbing layer 3, the cushioning and shock-absorbing layer 4, and the rigid support and impact-resistant layer 5. specific:

[0061] 1. Carding and needle punching into felt

[0062] 1. Put polyester fiber and modified polypropylene fiber into the first carding machine. After carding, a rigid support impact-resistant layer is formed, and the rigid support impact-resistant layer fiber web is evenly spread on the conveyor network by cross-laying. on the curtain;

[0063] 2. Put low-melting-point modified polyester fibers and high-elastic polyester fibers with a melting point of 165°C into the second carding machine. After carding, the buffer and shock-absorbing layer 4 is formed, and the fiber web of the buffer and shock-absorbing layer 4 is passed through the cross The way of laying the net is evenly laid on the fiber net of the rigid support impact-resistant layer;

[00...

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Abstract

The invention discloses a novel outer wheel cover felt material for passenger cars and a preparation method thereof. The felt material successively comprises a damping shock-adsorption layer, a rubber powder layer, a sound-adsorbing layer, a buffer shock-adsorption layer and a rigid support impact-resisting layer from top to bottom. The felt production efficiency is high, three carding machines respectively control paving of corresponding functional layers, and then the felt product is prepared in one step by spreading the powder and attaching with the damping shock-adsorption layer. The wheel cover is good in sound-adsorbing performance, and the reverberation-chamber test average sound-absorbing coefficient of the wheel cover material is 0.65 or more.

Description

technical field [0001] The invention relates to a felt material and a preparation process thereof, in particular to a novel outer wheel house felt material for passenger vehicles and a preparation method thereof. Background technique [0002] The car wheel guard is an exterior trim and is assembled on the top of the wheel. Its main function is to prevent the body from being stained by rain or sediment, and to damage the body due to the splash of stones when the car is running. In addition, it still needs to function in bad weather, so the material also needs to have good weather resistance. [0003] At present, the most used wheel cover guard material in the automobile market is mainly a blend of polypropylene (PP) and ethylene propylene diene monomer (EPDM), and there are also high-density polyethylene (HDPE) materials. Since this kind of material is injection molded, the material is compact, so it has limited absorption of the noise generated when the car is running, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/12B32B3/24B32B27/02B32B27/36B32B5/08B32B5/26B32B27/32B32B7/02B32B5/06B32B37/02B32B38/00B32B37/24B32B38/04B32B37/12B62D25/18
CPCB32B3/266B32B5/06B32B5/08B32B5/26B32B7/02B32B27/12B32B27/32B32B27/36B32B37/02B32B37/1207B32B37/24B32B38/00B32B38/04B32B2037/1238B32B2037/243B32B2038/008B32B2038/042B32B2262/0276B32B2262/12B62D25/18
Inventor 丁文鹏周立方晶赵涛马国维
Owner 浙江华江科技股份有限公司
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