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
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  • 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

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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...

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Abstract

The invention relates to an enhanced car roof sound-insulating and heat-insulating mat and a manufacturing method thereof. The sound-insulating and heat-insulating mat has a five-layer structure, the upper surface layer and the lower surface layer are coated non-woven fabrics, and the middle layer is made of 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. Compared with the prior art, the sound insulation pad obtained by the present invention is mainly composed of a polyurethane foam sound insulation and heat insulation material layer, which can absorb and attenuate noise, and because the polyurethane thermal curing tape is laid, it can strengthen the vehicle The rigidity of the roof reduces the weight of the whole vehicle. For OEMs, it simplifies the installation process and reduces the initial investment in equipment.

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

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Application Information

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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
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