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Method for producing car heat insulating pad

A production method and heat insulation pad technology, applied in the field of automotive interior parts, can solve the problems of unsatisfactory heat insulation pad shape, harsh production environment, high price, etc., and achieve the effect of beautiful shape, non-deformable shape, and high strength

Inactive Publication Date: 2010-02-24
WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the heat insulation pads are directly pressed and formed by re-spun cotton after baking. The disadvantages are: heavy weight, high price, not environmentally friendly, heavy smell, harsh production environment, and the shape of the heat insulation pad cannot meet the requirements of some cars.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Produce model D06 front wall heat insulation pad, the specification of the front wall heat insulation pad is: L1350×W 650mm.

[0015] The production process of the cowl heat insulation pad is as follows:

[0016] (1) Baking: Baking the above-mentioned PU upper surface with double ovens in the air, controlling the temperature of the upper and lower heating zones to 130-170°C, the baking time is 55-65 seconds, and the pre-heating time: ? ? ? s;

[0017] (2) Compression forming: Press and form the hot-rolled non-woven fabrics (PET fiber layer, PE rubber powder layer) of the thickly baked PU upper and lower surfaces. Press molding time: 60±5s, molding pressure: 100~130kgf / cm 2 ;

[0018] (3) Cooling and shaping: the semi-finished product after pressing is cooled and shaped at room temperature, and the cooling time is: 75-95s;

[0019] (4) Cutting and trimming: Carry out the corresponding circumference and hole position cutting of the above-mentioned semi-finished prod...

Embodiment 2

[0023] The production model is D06 cover heat insulation pad, the specification of the machine cover heat insulation pad is: L1350×W750mm.

[0024] The production process of the machine cover heat insulating pad is as follows:

[0025] (1) Baking: Baking the above-mentioned PU upper surface with double ovens in the air, controlling the temperature of the upper and lower heating zones to 130-170°C, the baking time is 55-65 seconds, and the pre-heating time: ? ? ? s;

[0026] (2) Compression forming: Press and form the hot-rolled non-woven fabrics (PET fiber layer, PE rubber powder layer) of the thickly baked PU upper and lower surfaces. Press molding time: 60±5ss, molding pressure: 100~130kgf / cm 2 ;

[0027] (3) Cooling and shaping: the semi-finished product after pressing is cooled and shaped at room temperature, and the cooling time is: 75-95s;

[0028] (4) Cutting and trimming: Carry out the corresponding circumference and hole position cutting of the above-mentioned s...

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PUM

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Abstract

The invention belongs to the technical field of interior parts of cars, in particular to a method for producing a car heat insulating pad which is installed in a car engine bin and plays roles of sound absorption and heat insulation. The method for producing the car heat insulating pad comprises the following steps: (1) baking: baking the upper molded surface and the lower molded surface of prefabricated polyurethane in a double-oven suspending type; (2) pressing and molding: pressing and molding composite hot rolling non-woven fabrics on the upper molded surface and the lower molded surface of the baked polyurethane respectively to form a semi-finished product; (3) cooling and shaping: cooling and shaping the pressed and molded semi-finished product at normal temperature; (4) cutting andtrimming: carrying out peripheral cutting and hole position cutting on the cooled and shaped semi-finished product according to the shape requirement of the heat insulating pad; (5) inspecting: inspecting the finished product; and if the finished product is qualified, packaging into a box to be delivered into a warehouse.

Description

technical field [0001] The invention belongs to the technical field of automobile interior parts, and in particular relates to a production method of an automobile heat insulation pad which is installed in an automobile engine compartment and plays the role of sound absorption and heat insulation. Background technique [0002] With the continuous improvement of living standards, people not only have higher requirements for the performance of automobiles, but also have higher and higher requirements for environmental protection, energy saving and personalization of automobiles. An important factor affecting the purchase of a car. At present, car interior parts are generally installed on the top of the car, the trunk, the cab, etc., to play the role of heat insulation, sound insulation and aesthetics. [0003] In the prior art, performance indicators such as low weight and high strength of heat insulation pads have become bottlenecks, restricting the development of heat insula...

Claims

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Application Information

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IPC IPC(8): B60R13/08B32B27/12B32B37/10B32B38/16
Inventor 孔崎
Owner WUXI GISSING AUTO ACOUSTIC PARTS TECH CO LTD
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