Mat member, method of fabrication mat member, exhaust gas treating apparatus, and silencing device

一种废气处理装置、废气处理的技术，应用在消音装置、排气装置、薄料处理等方向，能够解决降低无机纤维飞散量、不能充分抑制无机纤维飞散等问题，达到抑制飞散的效果

Active Publication Date: 2009-04-01
IBIDEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From this measurement result, it was found that the conventional method of forming thin films on the inner and outer surfaces of the mat cannot sufficiently suppress the scattering of inorganic fibers
[0009] As mentioned above, since the existing method cannot sufficiently suppress the scattering of inorganic fibers from the mat, it is estimated that a method that can further reduce the amount of scattering of inorganic fibers will be required in the future

Method used

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  • Mat member, method of fabrication mat member, exhaust gas treating apparatus, and silencing device
  • Mat member, method of fabrication mat member, exhaust gas treating apparatus, and silencing device
  • Mat member, method of fabrication mat member, exhaust gas treating apparatus, and silencing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2～5

[0103] In the same manner as in Example 1, a mat having an inorganic fiber scattering suppressing portion on the entire end surface was produced (Examples 2 to 5). However, in Example 2, the installation density of the organic binder was 6.2 mg / cm 2 , in embodiment 3, make the setting density of organic binding material be 10.7mg / cm 2 , in embodiment 4, make the setting density of organic binding material be 15.1mg / cm 2 , in embodiment 5, make the setting density of organic binding material be 24.3mg / cm 2 .

Embodiment 6～8

[0105] A mat having an inorganic fiber scattering suppressing portion on the end face was fabricated by the same method as in Example 1. However, in Example 6, the organic binder was spray-coated only on 25% of the entire end surface of the mat to form the inorganic fiber scattering suppressing portion. In Example 7, the inorganic fiber scattering suppressing portion was formed on 50% of the entire end surface of the mat, and in Example 8, the inorganic fiber scattering suppressing portion was formed on 75% of the entire end surface of the mat. Among them, the installation density of the organic binder in any one of the inorganic fiber scattering suppression parts is 1.8 mg / cm 2 .

Embodiment 9

[0107] A mat having an inorganic fiber scattering suppressing portion was produced in the same manner as in Example 1. However, in Example 9, the first organic binder was also spray-coated on the entire surface of one main surface (first main surface) of the mat material. Therefore, the inorganic fiber scattering suppressing portion is formed on the entire surface of one main surface (first main surface) of the mat material in addition to the entire end surface of the mat material. The installation density of the first organic binder in the inorganic fiber scattering suppressing portion (end face and first main surface) is 1.8 mg / cm 2 .

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Abstract

A mat member includes inorganic fibers, a first main surface, a second main surface opposite to the first main surface, an edge surface surrounding the first main surface and the second main surface, and an inorganic fiber scattering reduction unit. The inorganic fiber scattering reduction unit is provided on at least a part of the edge surface of the mat member and configured to reduce scattering of the inorganic fibers.

Description

technical field [0001] The present invention relates to a mat material containing inorganic fibers, in particular to a mat material used for exhaust gas treatment devices and noise reduction devices such as vehicles. Background technique [0002] The number of automobiles has increased rapidly after entering this century, and at the same time, the amount of exhaust gas emitted by automobile internal combustion engines has also increased rapidly. In particular, various substances contained in diesel engine exhaust gas have become a cause of pollution and are currently having a serious impact on the world environment. [0003] Under such circumstances, various exhaust gas treatment devices have been proposed and put into practical use. In a general exhaust gas treatment device, a cylindrical member (housing) is provided in the middle of an exhaust pipe connected to an engine exhaust manifold, and an exhaust gas treatment body is arranged therein. The exhaust gas treatment bod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/28B01D53/34B01D53/86F01N1/24
CPCF01N3/2853D04H1/642C04B2235/5264C04B2235/526C04B35/62245C04B2235/5481D04H1/64Y10T428/24785Y10T428/237Y10T428/24777F01N3/28B01D53/86
Inventor 斋木健藏
Owner IBIDEN CO LTD
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