Manufacturing method of environment-friendly saloon car sound insulating pad

A manufacturing method and technology for sound insulation pads, which are applied to the new manufacturing of car sound insulation pads and the manufacturing field of car sound insulation pads, can solve problems such as lack of environmental protection significance, and achieve the effects of simple manufacturing process, improved sound absorption coefficient, and improved environmental performance.

Active Publication Date: 2012-11-21
WUXI GISSING AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The manufacturing method of domestic car sound insulation pads is generally to use miscellaneous cotton, spun cotton and phenolic resin blended to make cotton felts of different specifications, and then heat-pressed and solidified to make different specifications of sound insulation pads. Certain performance requirements, but are lacking in the sense of environmental protection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) Preparation of forming molds: prepare forming molds according to the external dimensions of car sound insulation pads;

[0014] (2) Preparation of the base material of the sound-insulating pad: take 50% hemp palm fiber by weight, and the rest is 50% natural latex, and blend in a blending machine to obtain the base material of the sound-insulating pad;

[0015] (3) Substrate molding: heat-press the base material of the sound-insulating mat obtained in step (2) in the forming mold prepared in step (1) to obtain a semi-finished sound-insulating mat; the temperature is 100~120°C, the pressure is 7.5MPa, The molding time is 65s;

[0016] (4) Fabric lamination: Put the semi-finished sound insulation mat and fabric prepared in step (3) into the forming mold for pressing and lamination, the pressure is 7.5MPa, and the lamination time is 20s, and the finished environmentally friendly car sound insulation mat is obtained.

Embodiment 2

[0018] (1) Preparation of forming molds: prepare forming molds according to the external dimensions of car sound insulation pads;

[0019] (2) Preparation of the base material of the sound-insulating pad: take 65% hemp palm fiber by weight, and the rest is 35% natural latex, and blend in a blending machine to obtain the base material of the sound-insulating pad;

[0020] (3) Substrate molding: heat-press the base material of the sound-insulating mat obtained in step (2) in the forming mold prepared in step (1) to obtain a semi-finished sound-insulating mat; the temperature is 120~150°C, the pressure is 8MPa, The time is 50s;

[0021] (4) Fabric lamination: put the semi-finished sound insulation mat and fabric prepared in step (3) into the forming mold for pressing and lamination, the pressure is 7MPa, and the lamination time is 30s, and the finished environmentally friendly car sound insulation mat is obtained.

Embodiment 3

[0023] (1) Preparation of forming molds: prepare forming molds according to the external dimensions of car sound insulation pads;

[0024] (2) Preparation of the base material of the sound-insulating pad: take 80% hemp palm fiber by weight, and the rest is 20% natural latex, and blend in a blending machine to obtain the base material of the sound-insulating pad;

[0025] (3) Substrate molding: heat-press the base material of the sound-insulating mat obtained in step (2) in the forming mold prepared in step (1) to obtain a semi-finished sound-insulating mat; the temperature is 180~200°C, the pressure is 7MPa, The time is 70s;

[0026] (4) Fabric lamination: put the semi-finished sound insulation mat and fabric prepared in step (3) into the forming mold for pressing and lamination, the pressure is 8MPa, and the lamination time is 15s, and the finished environmentally friendly car sound insulation mat is obtained.

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PUM

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Abstract

The invention relates to a manufacturing method of a saloon car sound insulating pad, particularly relates to a novel manufacturing method of the saloon car sound insulating pad with an environment protection characteristic, and belongs to the manufacturing technology field of auto interior decoration. The manufacturing method comprises the steps: firstly, manufacturing a forming mold; secondly, using a palm fiber and a natural latex to blend so as to obtain a base material of the sound insulating pad; pressing and molding the base material of the sound insulating pad in a thermal forming mold to obtain a semi-finished product of the sound insolating pad; at last, putting a fabric in the mold and pressing and flattening the fabric and the semi-finished product, so as to obtain the environment-friendly saloon car sound insulating pad. According to the manufacturing method, the manufacturing process is simple and is similar to that of reconstituted cotton; only the innovation of the material gives a novel connotation to a traditional saloon car sound insulating pad; the sound absorption coefficient is greatly improved; at the same time, the improvement of the environment protection characteristic satisfies the higher demand of people on the safety performance of a passenger car; and the sound insulating pad is an environment-friendly product and achieves the goal of recycling on a certain technology basis.

Description

technical field [0001] The invention relates to a manufacturing method of a car sound-insulating pad, in particular to a novel manufacturing method of a car sound-insulating pad with environmental protection characteristics, and belongs to the technical field of manufacturing automotive interior parts. Background technique [0002] The manufacturing method of domestic car sound insulation pads is generally to use miscellaneous cotton, spun cotton and phenolic resin blended to make cotton felts of different specifications, and then heat-pressed and solidified to make different specifications of sound insulation pads. Certain performance requirements, but in the sense of environmental protection are lacking. Therefore, it is of great significance to develop and manufacture a new type of environmentally friendly car sound insulation pad to improve the environmental protection performance of cars. Contents of the invention [0003] The purpose of the present invention is to o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34
Inventor 沈晓东
Owner WUXI GISSING AUTO PARTS CO LTD
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