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Preparation method of nickel-based alloy fiber felt

A nickel-based alloy and fiber felt technology, which is applied in the field of nickel-based alloy fiber felt preparation, can solve problems such as difficult batch production, fiber felt twists and turns, and easy brittle fracture, and achieve good high temperature resistance

Active Publication Date: 2014-12-17
西安菲尔特金属过滤材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for preparing nickel-based alloy fiber mats, which solves the problem that the fiber mats prepared by the existing preparation methods are easily brittle and difficult to produce in batches.

Method used

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  • Preparation method of nickel-based alloy fiber felt

Examples

Experimental program
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Effect test

preparation example Construction

[0027] A kind of preparation method of nickel-based alloy fiber mat of the present invention, specifically carry out according to the following steps:

[0028] Step 1, cutting the alloy long fibers prepared by the drawing method through the cutting equipment, the diameter of the fiber filaments is Φ8 μm to Φ22 μm, and the length of the short fibers obtained after cutting is 30 mm to 60 mm;

[0029] Step 2, the staple fibers prepared in step 1 are laid into a fiber web by air-laying, and the weight per unit area of ​​the fiber web is controlled at 1000g / m 2 ~1500g / m 2 ;

[0030] Step 3, superimposing the multi-layer fiber web on the lamp inspection table to keep the uniformity of the prepared fiber mat consistent, and cutting the fiber mat according to the size to obtain a multi-layer fiber web blank that meets the requirements;

[0031] Step 4, use a roller press to smooth the multi-layer fiber web base prepared in step 3, and control the flat thickness at 1.0 mm to 2.0 mm, ...

Embodiment 1

[0037] Step 1, cut the alloy long fiber prepared by the drawing method through the cutting equipment, the diameter of the fiber filament is Φ8μm, and the length of the short fiber obtained after cutting is 30mm; Step 2, the short fiber prepared in step 1 is passed through The air-laid method is used to lay the fiber web, and the weight per unit area of ​​the fiber web is controlled at 1000g / m 2 ; Step 3, superimposing the multi-layer fiber web on the light inspection platform, so that the uniformity of the prepared fiber mat is consistent, and cutting the fiber mat according to the size to obtain a multi-layer fiber web blank that meets the requirements; Step 4, the The multi-layer fiber web blank prepared in step 3 is flattened with a roller press, and the flattened thickness is controlled at 1.0mm, and then the multi-layer fiber web blank is placed in a drying furnace at a drying temperature of 150°C for drying treatment; Step 5, fix the multi-layer fiber web blanks processe...

Embodiment 2

[0039] Step 1, cut the alloy long fiber prepared by drawing method through the cutting equipment, the diameter of the fiber filament is Φ22μm, and the length of the short fiber obtained after cutting is 60mm; Step 2, the short fiber prepared in step 1 is passed through The air-laid method is used to lay the fiber web, and the weight per unit area of ​​the fiber web is controlled at 1500g / m 2; Step 3, superimposing the multi-layer fiber web on the light inspection platform, so that the uniformity of the prepared fiber mat is consistent, and cutting the fiber mat according to the size to obtain a multi-layer fiber web blank that meets the requirements; Step 4, the The multi-layer fiber web blank prepared in step 3 is flattened with a roller press, and the flat thickness is controlled at 2.0mm, and then the multi-layer fiber web blank is placed in a drying furnace at a drying temperature of 180°C for drying treatment; Step 5, fix the multi-layer fiber web blanks processed in step...

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Abstract

The invention discloses a preparation method of a nickel-based alloy fiber felt. The method specifically comprises the following steps of 1, preparing alloy short fibers; 2, utilizing the alloy short fibers in the step 1 to prepare a fiber net; 3, utilizing the fiber net in the step 2 to prepare a multi-layer fiber net blank; 4, pretreating the multi-layer fiber net blank in the step 3; 5, sintering the pretreated multi-layer fiber net blank in the step 4 to prepare the sintered blank; 6, performing the post-treatment on the blank in the step 6 to obtain the nickel-based alloy fiber felt. The preparation method of the nickel-based alloy fiber felt solves the problems of the fiber felt prepared by the existing preparation method that the felt is brittle and easily broken during twisting, and the batched production is difficult.

Description

technical field [0001] The invention belongs to the technical field of high-temperature gas purification and dust removal equipment, and in particular relates to a preparation method of a nickel-based alloy fiber felt. Background technique [0002] Thermal power generation is the main power generation method in China. At present, thermal power generation accounts for 81%, of which 93% is combustion power generation. Therefore, facing the huge pressure of my country's social and economic development on energy demand and environmental improvement, the development of clean coal power generation, high-temperature flue gas purification, etc. The urgency of energy-saving and emission-reduction technologies for China is greater than that of any other country in the world. [0003] At present, the main problems faced by the high-temperature gas purification and dust removal technology using metal materials have limited its popularization and application in modern energy-saving and en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/11B01D39/20
Inventor 郭亮阳清许佩敏白文峰张国朋张小庆左彩霞
Owner 西安菲尔特金属过滤材料股份有限公司