Production method of sound insulating pad under automobile back seat

A production method and technology for rear seats, which are applied in chemical instruments and methods, layered products, vehicle parts, etc., can solve the problems of heavy weight, inability to meet the acoustic performance requirements of sound insulation pads under the rear seats, and high prices, and achieve weight Light, reduce the investment in production links and tooling, and have the effect of light weight

Inactive Publication Date: 2016-12-07
WUXI GISSING AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the existing sound insulation pads under the rear seats are: heavy weight, high price, and can not meet the acoustic performance requirements of some cars for the sound insulation pads under the rear seats

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1G9

[0016] Embodiment 1 The production method of the sound insulation pad under the G95 rear seat

[0017] (1) Laying of raw materials: The raw materials are conveyed and laid on the mesh chain of the walk-in oven in the order of the elastic layer on the bottom and the heavy coating on the top;

[0018] Step (1) The elastic layer is pure PET cotton felt; the heavy coating is two layers, the upper layer is an EPDM layer, and the lower layer is a PE film; the elastic layer is in contact with one side of the PE film. The thickness of the elastic layer is 8 mm, and the thickness of the heavy coating is 1 mm. The thickness of the PE film layer is 35 μm.

[0019] The density of described pure PET cotton felt is 810g / m 2 , EPDM layer density is 1550g / m 2 , the density of the PE film layer is 32g / m 2 .

[0020] (2) Baking temperature of raw materials: Send the raw materials obtained in step (1) into an oven for drying, so that the elastic layer and the heavy coating are initially bon...

Embodiment 2

[0024] Embodiment 2 The production method of the sound insulation pad under the rear seat of X81

[0025] (1) Laying of raw materials: The raw materials are conveyed and laid on the mesh chain of the walk-in oven in the order of the elastic layer on the bottom and the heavy coating on the top;

[0026] Step (1) The elastic layer is pure PET cotton felt; the heavy coating is two layers, the upper layer is an EPDM layer, and the lower layer is a PE film; the elastic layer is in contact with one side of the PE film. The thickness of the elastic layer is 12 mm, and the thickness of the heavy coating is 2 mm. The thickness of the PE film layer is 40 μm.

[0027] The density of described pure PET cotton felt is 990 g / m 2 , EPDM layer density is 1800 g / m 2 , the density of the PE film layer is 38g / m 2 .

[0028] (2) Baking temperature of raw materials: Send the raw materials obtained in step (1) into an oven for drying, so that the elastic layer and the heavy coating are initial...

Embodiment 3X81

[0032] Embodiment 3 The production method of the sound insulation pad under the rear seat of X81

[0033] (1) Laying of raw materials: The raw materials are conveyed and laid on the mesh chain of the walk-in oven in the order of the elastic layer on the bottom and the heavy coating on the top;

[0034] Step (1) The elastic layer is pure PET cotton felt; the heavy coating is two layers, the upper layer is an EPDM layer, and the lower layer is a PE film; the elastic layer is in contact with one side of the PE film. The thickness of the elastic layer is 10 mm, and the thickness of the heavy coating is 1 mm. The thickness of the PE film layer is 38 μm.

[0035] The density of described pure PET cotton felt is 900 g / m 2 , EPDM layer density is 1650g / m 2 , the density of the PE film layer is 35g / m 2 .

[0036] (2) Baking temperature of raw materials: Send the raw materials obtained in step (1) into an oven for drying, so that the elastic layer and the heavy coating are initiall...

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Abstract

The invention relates to a production method of a sound insulating pad under an automobile back seat, and belongs to the technical field of automobile interior trim parts. By mainly using a manner that an elastic layer (pure PET hair felt) is arranged on a lower layer and a heavy coating (EPDM and PE adhesive film compounding) is arranged on an upper layer, the sound insulating pad under the automobile back seat is prepared through paving of raw materials, baking of the raw materials, punching of a semi-finished product forming belt, post-processing and box packaging. The production method is simple in technological process, the production process and the investment of tools are reduced, the labor cost is reduced, and the stacking problem of semi-finished products is solved; moreover, the punching product dimensions are stable, the production efficiency is effectively improved, and the product quality is guaranteed; furthermore, the production process is free of generation of any harmful substance, and the sound insulating pad belongs to an environmentally-friendly product. The production method realizes the index that the sound insulating pad under the back seat is light in weight and high in strength, the noise inside an automobile body is effectively reduced, the requirement of an acoustic design of a whole automobile is met, and international frontier level is reached.

Description

technical field [0001] The invention relates to a production method of a sound-insulating pad under the rear seat of an automobile, in particular to an automobile which is installed under the rear seat of the passenger compartment of the automobile and above the sheet metal of the chassis to reduce the noise introduced into the interior of the automobile. The invention discloses a production method of a sound insulation pad under a rear seat, belonging to the technical field of automotive interior parts. Background technique [0002] Automotive interior parts are generally installed inside the car 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 interior of the car, like the performance of the car, has attracted more and more attention. Therefore, the requirements for automotive interior part...

Claims

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Application Information

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IPC IPC(8): B32B37/02B32B38/16B32B37/10B32B38/04B60R13/08
CPCB32B37/02B32B37/10B32B38/04B32B38/164B32B2038/045B32B2307/558B32B2307/718B32B2307/734B60R13/0815
Inventor 薛洪斌
Owner WUXI GISSING AUTO PARTS CO LTD
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