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Automobile exhaust pipe and noise-reducing coating material for exhaust pipe

A technology for automobile exhaust and exhaust pipes, which is applied in the field of mechanical parts manufacturing, can solve problems such as high noise and easy freezing, and achieve the effects of long service life, reduced noise and good noise reduction effect.

Inactive Publication Date: 2016-12-07
新昌县万瑞铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an automobile exhaust pipe and a sound-absorbing paint used for the exhaust pipe, the main purpose of which is to solve the defects of the prior art that there is a lot of noise and that it is easy to freeze in winter

Method used

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  • Automobile exhaust pipe and noise-reducing coating material for exhaust pipe
  • Automobile exhaust pipe and noise-reducing coating material for exhaust pipe

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Embodiment one: refer to figure 1 , an automobile exhaust pipe and a sound-absorbing coating for the exhaust pipe, comprising a left exhaust pipe main body 1 and a right exhaust pipe main body 2, and the left exhaust pipe main body 1 and the right exhaust pipe main body 2 are provided with mutual Connected through hole 12. The inner walls of the left and right exhaust pipe main bodies 1 and 2 are provided with a sound-absorbing paint layer 4, the sound-absorbing paint layer 4 is composed of the following components by weight: 8-15 parts of high temperature resistant resin, 4-6 parts of amino resin, 3-9 parts of organic solvent, 1-5 parts of glass fiber, 2-parts of silicon carbide, 3-7 parts of surface modifier, 1-4 parts of corrosion inhibitor, 4-9 parts of dipropylene glycol butyl ether, 2 parts of amine compounds -5 parts, 5-10 parts of nano-organic montmorillonite, 3-8 parts of stannous decanoate, 3-9 parts of nano-calcium sulfate, and 1-3 parts of plasticizer. The...

Embodiment 2

[0018] Embodiment two: refer to figure 2 , an automobile exhaust pipe and a sound-absorbing coating for the exhaust pipe, comprising a left exhaust pipe main body 1 and a right exhaust pipe main body 2, and the left exhaust pipe main body 1 and the right exhaust pipe main body 2 are provided with mutual Connected through hole 12. The inner walls of the left and right exhaust pipe main bodies 1 and 2 are provided with a sound-absorbing paint layer 4, the sound-absorbing paint layer 4 is composed of the following components by weight: 8-15 parts of high temperature resistant resin, 4-6 parts of amino resin, 3-9 parts of organic solvent, 1-5 parts of glass fiber, 2-parts of silicon carbide, 3-7 parts of surface modifier, 1-4 parts of corrosion inhibitor, 4-9 parts of dipropylene glycol butyl ether, 2 parts of amine compounds -5 parts, 5-10 parts of nano-organic montmorillonite, 3-8 parts of stannous decanoate, 3-9 parts of nano-calcium sulfate, and 1-3 parts of plasticizer. Th...

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Abstract

The invention discloses an automobile exhaust pipe. The automobile exhaust pipe comprises a left exhaust pipe body and a right exhaust pipe body. The left exhaust pipe body communicates with the right exhaust pipe body; noise-reducing coating material layers are arranged on the inner walls of the left exhaust pipe body and the right exhaust pipe body; heat preservation layers are arranged on the outer walls of the left exhaust pipe body and the right exhaust pipe body; each heat preservation layer sequentially comprises a heat preservation cotton layer, a heat insulation binding belt layer and a heat insulation steel-foil layer from inside to outside; the heat preservation cotton layers are tightly attached to the outer walls of the left exhaust pipe body and the right exhaust pipe body; the outer portion of each heat preservation cotton layer is wrapped and bound through the corresponding heat insulation binding belt layer; and the outer portion of each heat insulation binding belt layer is directly wrapped through the corresponding heat insulation steel-foil layer. By arranging the heat preservation layers, heat transferring inside and outside the automobile exhaust pipe can be reduced effectively, and the interior of the exhaust pipe bodies is prevented from freezing. The invention further discloses a noise-reducing coating material specially used for the automobile exhaust pipe. The noise-reducing coating material layers adopting the noise-reducing coating material have good noise-reducing effects on the exhaust pipe; high temperature can be withstood; and service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of mechanical parts manufacturing, in particular to an automobile exhaust pipe for thermal insulation and noise reduction and a sound-absorbing coating for the automobile exhaust pipe. Background technique [0002] As we all know, the automobile exhaust pipe is a device used for exhausting the automobile, and is an indispensable part of the automobile; the existing automobile exhaust pipe structure includes a tubular main body, and it is found in the use of this automobile exhaust pipe structure that Its exhaust volume is small, and in the cold winter, the condition of icing inside the tubular body will cause the whole car to fail to exhaust, thereby damaging other parts of the car. [0003] In terms of the role of the automobile exhaust pipe on the automobile body, it plays the role of shock absorption and noise reduction, and prolongs the life of the exhaust muffler system. The main material of the exhaus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/08F01N13/14F01N13/16C09D201/00C09D161/20C09D7/12B32B15/18B32B15/08B32B15/04
CPCF01N13/082B32B15/04B32B15/08B32B15/18B32B2307/302B32B2307/304B32B2597/00B32B2605/00C08K2201/011C09D7/61C09D7/62C09D7/70C09D201/00F01N13/007F01N13/148F01N13/16F01N2240/16
Inventor 何新军
Owner 新昌县万瑞铸造有限公司
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