Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Enhanced car roof sound-insulation heat-insulation mat and manufacturing method thereof

A heat insulation mat and enhanced technology, applied in chemical instruments and methods, vehicle parts, lamination, etc., can solve the problems of complicated process, increased production cost, and large equipment investment, and achieve simple process, less equipment investment, and lighten The effect of vehicle weight

Inactive Publication Date: 2016-06-22
SHANGHAI XINAN CAR DEADENING FELT
View PDF13 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The patents mentioned above all use mechanically applied glass glue. On the one hand, the process is complicated, and on the other hand, the investment in equipment is large, which greatly increases the production cost.

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of 5-layer structure automotive reinforced roof sound insulation pad, the method comprises the following steps:

[0047] (1) Production of polyurethane foam sound insulation and heat insulation material layer:

[0048] ① Control the temperature of polyether and isocyanate materials at 25-30°C;

[0049] ②Put isocyanate and polyether into the foaming box at a weight ratio of (1-2):1, control the temperature at 25-30°C, and mature for 30-40 minutes;

[0050] ③ Slice the foamed material, control the thickness of the slice to 6-8 mm, and store it for 24 hours after slicing to obtain the polyurethane foam sound-insulating material layer;

[0051] (2) Glue

[0052] ① Apply glue on the surface of the polyurethane foam sound insulation material layer, the amount of glue applied is 100-150g / m2;

[0053] ②Apply on both sides;

[0054] (3) Compression molding:

[0055] ①Heat the surface temperature of the forming mold to 100-110°C and keep it for 30-40 minutes;

[0056...

Embodiment 2

[0063]An enhanced car roof sound insulation and heat insulation pad, the sound insulation and heat insulation pad has a five-layer structure, the upper surface layer and the lower surface layer are coated non-woven fabrics, and the middle layer is a density of 50kg / m 3 Polyurethane foam sound insulation and heat insulation layer, a glass fiber layer is laid between the middle layer and the upper surface layer and the lower surface layer; the surface of the upper surface layer or the lower surface layer is laid with a polyurethane heat-curing tape, and the polyurethane heat-curing tape is Long strips are laid on the upper surface layer or the lower surface layer at intervals. The thickness of coated non-woven fabric, polyurethane foam sound insulation and heat insulation layer and glass fiber layer is 2mm, 8mm, 3mm.

[0064] The density of coated non-woven fabric is 200~500g / m 2 , the density of the glass fiber layer is 100-500g / m 2 . The width of the polyurethane heat-curin...

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
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
widthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to an enhanced car roof sound-insulation heat-insulation mat and a manufacturing method thereof. The sound-insulation heat-insulation mat is of a five-layer structure; an upper surface layer and a lower surface layer are film non-woven fabrics; a middle layer is a polyurethane foaming sound-insulation heat-insulation layer with the density of 50 Kg / m3; glass fiber layers are arranged between the middle layer and the upper surface layer and the lower surface layer; polyurethane heat-curable adhesive tapes are laid on a surface of the upper surface layer or the lower surface layer; and the polyurethane heat-curable adhesive tapes are long-bar-shaped and are laid on the upper surface layer or the lower surface layer at intervals. Compared with the prior art, the sound-insulation mat is made of the polyurethane foaming sound-insulation heat-insulation material layer, and thereby achieving noise absorption and attenuation; the laid polyurethane heat-curable adhesive tapes can enhance the rigidity of the car roof and lightening the weight of the whole car; and for main engine plants, the installation technique is simplified, and the investment in an early stage can be decreased.

Description

technical field [0001] The invention relates to a sound-insulating felt and a manufacturing method thereof, in particular to a reinforced automobile roof sound-insulating and heat-insulating pad and a manufacturing method thereof. Background technique [0002] At present, most of the roof sound insulation pads in the automotive industry use single-layer felt uniform thickness materials to make parts. It can obviously absorb and attenuate the noise, but does not have a strengthening effect on the roof. The existing enhanced roof sound insulation pad is cumbersome to install and has complicated procedures. [0003] Chinese patent CN102336167A discloses a multi-layer structure sound insulation pad for automobiles and its manufacturing method. The multi-layer structure sound insulation pad is composed of 2 to 3 layers of different densities. After the low-density sound-insulation mat and the high-density sound-insulation mat are made according to the conventional method, they a...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08B32B17/02B32B17/10B32B17/12B32B27/40B32B3/14B32B37/10B32B37/12
Inventor 高翠梅金军
Owner SHANGHAI XINAN CAR DEADENING FELT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com