Porous foam iron-nickel-chromium alloy material preparation method

An iron-nickel-chromium alloy and porous foam technology, which is applied in the field of preparation of porous foamed iron-nickel-chromium alloy materials, can solve the problems of unreasonable process flow and process parameters, low thickness of porous foam alloy materials, poor corrosion resistance, etc. The effect of easy quality control, excellent corrosion resistance and low cost

Inactive Publication Date: 2017-05-31
CHANGDE LYRUN MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the existing electrodeposition method related to the preparation method of the present invention are that the selected process flow and process parameters are unreasonable, the thickness of the prepared porous foam alloy material is low, usua...

Method used

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Examples

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Effect test

preparation example Construction

[0018] A kind of preparation method of porous foamed iron-nickel-chromium alloy material of the present invention comprises the following steps:

[0019] (1) Select one of polyurethane through-hole three-dimensional reticular foam sponge, polyether through-hole three-dimensional reticular foam sponge, fiber net or non-woven porous material, with a thickness of 5-100mm, and the number of holes per inch PPi is 5- Between 130;

[0020] (2) With the porous material described in step 1), at normal temperature, immerse water-based polymer adhesive, and described water-based polymer adhesive is isocyanate;

[0021] (3) With powder spraying equipment, at wind pressure 0.8MPa, under the powder delivery rate 3kg / h, 5-10 nanometer chromium powder is evenly sprayed on the porous material surface of step 2) impregnation isocyanate;

[0022] (4) drying the porous material sprayed with chromium powder in step 3) with a mesh-belt electric furnace, the drying temperature is 80-100° C., and th...

Embodiment 1

[0030] Embodiment 1: a kind of preparation method of porous foam iron-nickel-chromium alloy material comprises the following steps:

[0031] (1) Use fiber mesh with a thickness of 5mm and PPi of 5 holes per inch;

[0032] (2) impregnating the porous material described in step 1) with isocyanate at normal temperature;

[0033] (3) With powder spraying equipment, at wind pressure 0.8MPa, under the powder delivery rate 3kg / h, 5 nanometer chromium powder is evenly sprayed on the porous material surface of step (2) immersion isocyanate;

[0034] (4) step 3) the porous material sprayed with chromium powder is dried with a mesh belt type electric furnace, and the drying temperature is 80° C., and the mesh speed of the electric furnace is 25m / h for drying treatment;

[0035] (5) step 4) the porous material of drying and spraying chromium powder is put into 230 mesh screen vibrators, unnecessary chromium powder is vibrated out, and redundant chromium powder is separated from the porou...

Embodiment 2

[0041] Example 2: The preparation method of another kind of porous foamed iron-nickel-chromium alloy material comprises the following steps:

[0042] (1) Use polyurethane through-hole three-dimensional reticulated foam sponge with a thickness of 80mm and PPi of 100 holes per inch;

[0043] (2) impregnating the porous material described in step 1) with isocyanate at normal temperature;

[0044] (3) With powder spraying equipment, under wind pressure 0.8MPa, powder delivery rate 3kg / h, 8 nanometer chromium powder is evenly sprayed on the porous material surface of step 2) immersion isocyanate;

[0045] (4) the porous material sprayed with chromium powder in step 3) is dried with a mesh belt electric furnace, and the drying temperature is 90° C., and the mesh speed of the electric furnace is 25m / h for drying;

[0046] (5) step 4) the porous material of drying and spraying chromium powder is put into 240 mesh screen vibrators, unnecessary chromium powder is vibrated out, and redu...

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Abstract

The invention discloses a porous foam iron-nickel-chromium alloy material preparation method, which comprises: selecting a porous material, and at a room temperature, immersing in an aqueous polymer binder; uniformly spraying the surface of the porous material immersed in the aqueous polymer binder by using nanometer chromium powder; drying; separating the excess chromium powder from the porous material matrix; coating the chromium porous material by using an electric conduction glue in an impregnated manner; carrying out heating and curing treatment on the chromium porous material, and electrodepositing an iron-nickel alloy; carrying out redox treatment; and carrying out secondary chromium diffusion treatment to obtain the porous foam iron-nickel-chromium alloy material. According to the present invention, the preparation method is scientific, the selected process parameters are reasonable, the quality is easy to control, the cost is low, the product with characteristics of light weight, large specific surface area, high thickness of 5-100 mm, high porosity of 96-99.9%, excellent high-temperature resistance and excellent corrosion resistance, and capable of being used under harsh working conditions such as high temperature, corrosion and the like can be prepared, and the product is particularly adopted as the high temperature filtration material, the chemical industry catalysis material, the carrier material, the burner gas distribution material, the high temperature flame retardant material, and other materials.

Description

technical field [0001] The invention relates to a preparation method of an alloy material, which is a preparation method of a porous foamed iron-nickel-chromium alloy material. Background technique [0002] Porous foam alloy material can be widely used in filtration, chemical industry, energy, vibration reduction, sound absorption, damping, heat insulation, heat dissipation and flame retardancy due to its small bulk density, large specific surface area, uniform structure, good mechanical properties and processing performance. field. Especially with the continuous development of science and technology, the dependence on porous foam alloy materials is further used in harsh working conditions such as high temperature resistance and corrosion resistance. There are many kinds of preparation methods for existing porous foam alloy materials, which are classified according to the state of the metal to be processed: 1. The method based on metal melt; 2. The method based on metal pow...

Claims

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Application Information

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IPC IPC(8): C22C1/08C25D3/56
CPCC22C1/08C25D3/562C22C1/087
Inventor 易秋珍余兴华钟建夫朱济群
Owner CHANGDE LYRUN MATERIAL
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