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Hood insulator including non-woven fabric and fine resonance layer and method of manufacturing same

A technology of resonance layer and non-woven fabric, applied in the field of hood sound insulation, can solve the problems of increased weight, increased time and cost, etc., and achieve the effects of saving manufacturing time and cost, improving noise reduction performance, and maximizing space application

Inactive Publication Date: 2016-06-15
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since a separate mechanical punching process is required to form the perforations, time and cost are increased, and since the fabrics are bonded to each other after the perforation structure is formed on another sheet material other than the surface layer material, there is still a limitation in weight increase

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Hood insulator including non-woven fabric and fine resonance layer and method of manufacturing same
  • Hood insulator including non-woven fabric and fine resonance layer and method of manufacturing same
  • Hood insulator including non-woven fabric and fine resonance layer and method of manufacturing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0071] (1) A fine resonance layer including precise and regular perforations is formed on the surface of a non-woven fabric by rotary screen printing technology. The non-woven fabric has a thickness of 0.32 mm and a basis weight of 100 g / m 2 . Acrylic resin having heat resistance even at 180°C can be used as a material for forming the fine resonance layer. As in Figure 4 As shown in, the diameter of the perforations is 1.5mm, and the interval of the perforations is 2.8mm. Acrylic resin has a pattern in which the center of the perforation is repeatedly formed as an equilateral triangle. The thickness of the fine resonance layer is 0.28 mm, and the total thickness of the surface layer material is 0.6 mm.

[0072] (2) Bond the surface material to a thickness of 35mm and a basis weight of 700g / m by applying heat 2 The surface of glass wool, and will have a thickness of 0.32mm and a basis weight of 100g / m 2 After bonding the non-woven fabric to the opposite surface of the glass wool...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

A hood insulator including a non-woven fabric and a fine resonance layer comprises a porous substrate and a skin material disposed on a surface of the porous substrate, wherein the skin material comprises the non-woven fabric and the fine resonance layer, the fine resonance layer includes a plurality of perforations, and the fine resonance layer is disposed on the non-woven fabric.

Description

Technical field [0001] The present disclosure relates to a hoodinsulator including a non-woven fabric and a fine resonance layer and a manufacturing method thereof. More specifically, the present invention relates to such a hood sound insulation including a non-woven fabric and a fine resonance layer, which is effective by including a fine resonance layer formed with a large number of perforations in the surface layer material and by generating a sound attenuation phenomenon It can reduce the noise of the engine compartment, because there is no need to increase the weight and thickness to improve the sound absorption performance, so it is beneficial to minimize the weight and maximize the space. The present disclosure also relates to a method for manufacturing a hood soundproofing material including a non-woven fabric and a fine resonance layer. The method forms the hood soundproofing material by printing technology to allow the fine resonance layer to have a uniform printing ba...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08
CPCB60R13/0838B60R13/0884B32B38/14B32B2305/026B32B2305/20B32B2307/102B32B2309/105B32B2605/08B32B5/022B32B5/245
Inventor 李廷勖全烘赞金成制徐廷旭姜凤圭尹三熏姜吉镐
Owner HYUNDAI MOTOR CO LTD
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