A kind of metal fiber porous material prepared by bending structure aluminum alloy wire and its preparation method and application

A technology of metal fibers and porous materials, applied in the field of metal fiber porous materials and their preparation, can solve the problems of low strength, high closed porosity of aluminum porous materials, and little research, and achieves high strength, reduced operation steps, and light weight. Effect

Inactive Publication Date: 2021-10-19
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Due to its many characteristics of magnesium and silicon alloys, 6061 aluminum alloy has excellent processing performance, excellent welding characteristics and electroplating properties, good corrosion resistance, high toughness, no deformation after processing, and compact and defect-free materials. Aluminum porous materials mainly adopt powder metallurgy method and air bubble method. The aluminum porous materials prepared by this method have high closed porosity and low strength. There is little research on the preparation of aluminum wires into aluminum fiber porous materials.

Method used

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  • A kind of metal fiber porous material prepared by bending structure aluminum alloy wire and its preparation method and application
  • A kind of metal fiber porous material prepared by bending structure aluminum alloy wire and its preparation method and application
  • A kind of metal fiber porous material prepared by bending structure aluminum alloy wire and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The bending structure 6061 aluminum alloy short wire (0.15 mm in diameter, 5 mm in length of the short side, 10 mm in length of the long side, and 2 mm in transition arc diameter) selected in this embodiment is used to prepare the metal fiber porous material, and the specific operation steps are as follows:

[0038] (1) According to the mass-volume method, as shown in formula (1), calculate the mass of the new-type bent structure aluminum alloy short wire corresponding to the porosity of 60%, and weigh 13.8 g of the corresponding quality bent structure aluminum alloy short wire; Spread it evenly in a special mold.

[0039] P(%)=(1-M / ρV)×100 Formula (1)

[0040] Wherein, P represents the target porosity, M represents the mass of the metal fiber porous material, ρ represents the density of the aluminum alloy, and V represents the volume of the prepared metal fiber porous material.

[0041] Among them, the structure of the special mold is as follows: image 3 As shown, t...

Embodiment 2

[0046] The preparation method is the same as that of Example 1, except that the mass of the bent aluminum alloy short wire described in step (1) is 10.4 g, and a metal fiber porous material with a required porosity of 70% is obtained.

Embodiment 3

[0048] The preparation method is the same as that of Example 1, except that the mass of the bent aluminum alloy short wire described in step (1) is 6.9 g, and a metal fiber porous material with a required porosity of 80% is obtained.

[0049] Figure 5 It is the physical picture of the metal fiber porous material prepared in Examples 1-3. Among them, from left to right are prepared metal fiber porous materials with porosities of 60%, 70%, and 80%. From Figure 5 It can be seen that the lower the porosity, the denser the prepared metal fiber porous material.

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Abstract

The invention belongs to the field of metal fiber porous materials, and discloses a metal fiber porous material prepared from aluminum alloy wires with a bent structure, a preparation method and application thereof. The metal fiber porous material is made by placing the aluminum alloy short wires with bent structure evenly in a special mold, and then applying a pressure of 0.1-1T to the special mold, sintering at 540-580°C in a vacuum state, and cooling down to 100°C. After ~200℃, it is prepared by cooling in the furnace. The metal fiber porous material of the invention has controllable porosity, light weight, high strength and connected pores. The preparation process of the present invention is simple, has strong operability, is easy to realize industrialized production, and is applied in the field of preparation and production of metal fiber porous materials.

Description

technical field [0001] The invention belongs to the technical field of metal fiber porous materials, and more specifically relates to a metal fiber porous material prepared from aluminum alloy wires with a bent structure and its preparation method and application. Background technique [0002] Metal porous material is a new type of engineering material with both structural and functional properties. It is mainly composed of metal matrix and air pores. Functional characteristics, such as high specific surface area, sound insulation, heat insulation, high permeability, energy absorption, etc. At the same time, metal porous materials have the characteristics of small specific gravity and high specific strength, so they have a wide range of applications, involving aerospace, environmental protection, Petrochemical, metallurgy, machinery, construction and other industries. Metal porous materials have developed rapidly in recent years, and research institutions in many countries ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C47/06C22C47/20C22C49/14B22F3/11C22C111/00
CPCB22F3/1007B22F3/11B22F2999/00C22C47/062C22C47/20C22C49/14B22F2201/20
Inventor 张予昕彭奕恒章争荣
Owner GUANGDONG UNIV OF TECH
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