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A kind of heat shield and its processing method

A heat shield and heat insulation cotton technology, applied in the directions of adhesive additives, polymer adhesive additives, non-polymer adhesive additives, etc., can solve the problem of not meeting national emission standards, rapid loss, and damage to surrounding lines. and other problems, to achieve the effect of easy industrial application, simple preparation method, and improved assembly.

Active Publication Date: 2022-03-15
广州特拓新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The exhaust system of a car is one of the important components of a car. It is mainly composed of an exhaust pipe, a purifier, a catalytic converter, and a muffler. The exhaust pipe and catalytic converter of a car require heat insulation. The existing technology uses The 0.5mm thick galvanized sheet is double-sidedly pressed or unilaterally fastened on one side of the opponent for simple heat insulation, but the existing technology has the following disadvantages: ① Due to the high temperature of the hot end of the engine and the dense surrounding pipelines, the The heat insulation scheme of the traditional technology, in the long-term use of the vehicle, due to the incomplete heat insulation, is easy to cause damage to the surrounding lines, accelerate the aging of the lines, and cause failures; The temperature loss in the tube is fast, and the gas reaction is not complete, so that it cannot meet the national emission standards; ③The major OEMs are promoting the "lightweight" of automobiles to achieve weight reduction and consumption reduction. Traditional heat insulation solutions use thicker materials , increase the vehicle weight

Method used

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  • A kind of heat shield and its processing method
  • A kind of heat shield and its processing method
  • A kind of heat shield and its processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: A heat insulation cover, the cover body is made of SUS430 stainless steel, the thickness of the cover body is 0.1mm, the heat insulation cotton is glass fiber cotton, the thickness of the heat insulation cotton is 5mm, and the cover body and the heat insulation cotton are made of inorganic adhesive Inorganic adhesives include 60 parts of water glass, 3 parts of starch, 6 parts of glycerin, 120 parts of deionized water, 30 parts of copper oxide, 50 parts of silicon dioxide, 15 parts of ceramic fiber, and 6 parts of polyoxyethylene ether.

[0027] The preparation method of described inorganic adhesive is:

[0028] Step 1): Take 1 / 10 of the formula amount of deionized water, the formula amount, and the starch of polyoxyethylene ether, mix and stir until the starch is completely dissolved, then drop glycerin and mix and stir to obtain a mixed solution A;

[0029] Step 2): Take the water glass of the recipe amount and the deionized water of the remaining recipe am...

Embodiment 2

[0032] Embodiment 2: Similar to Embodiment 1, the difference is that the thickness of the cover body is 0.15 mm, and the thickness of the heat insulation cotton is 6 mm.

Embodiment 3

[0033] Embodiment 3: Similar to Embodiment 1, the difference is that the thickness of the cover body is 0.2 mm, and the thickness of the heat insulation cotton is 7 mm.

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Abstract

The invention discloses a heat shield and relates to the technical field of heat shields. The heat insulation cover includes a cover body and heat insulation cotton, the cover body is connected with the heat insulation cotton, the cover body includes an air intake section, a middle section and an exhaust section, and the air intake section is connected with the heat insulation cotton , the thickness of the cover body is 0.1-0.2mm, and the thickness of the heat insulation cotton is 5-7mm. The present invention uses SUS430 stainless steel with a thickness of 0.1-0.2mm as the cover body and glass fiber cotton with a thickness of 5-7mm as the heat insulation cotton, which can not only achieve heat insulation, promote the complete gas reaction, but also meet the requirements of light weight, and meet the national requirements. Six standards. The invention utilizes inorganic adhesives to ensure the assembly between the cover body and the heat insulation cotton, and can be firmly combined in a high temperature environment. The preparation method of the heat shield of the invention is simple and convenient for industrial application.

Description

technical field [0001] The invention relates to the technical field of heat shields, in particular to a heat shield and a processing method thereof. Background technique [0002] The exhaust system of a car is one of the important components of a car. It is mainly composed of an exhaust pipe, a purifier, a catalytic converter, and a muffler. The exhaust pipe and catalytic converter of a car require heat insulation. The existing technology uses The 0.5mm thick galvanized sheet is double-sidedly pressed or unilaterally fastened on one side of the opponent for simple heat insulation, but the existing technology has the following disadvantages: ① Due to the high temperature of the hot end of the engine and the dense surrounding pipelines, the The heat insulation scheme of the traditional technology, in the long-term use of the vehicle, due to the incomplete heat insulation, is easy to cause damage to the surrounding lines, accelerate the aging of the lines, and cause failures; ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N13/14F01N13/18C09J1/02C09J11/04C09J11/08B23P15/00
CPCF01N13/14F01N13/18C09J1/02C09J11/04C09J11/08B23P15/00
Inventor 孟照东
Owner 广州特拓新材料科技有限公司
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