CN109837414A - A kind of preparation method haveing excellent performance multipurpose Engineering Foam metal material - Google Patents
A kind of preparation method haveing excellent performance multipurpose Engineering Foam metal material Download PDFInfo
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- CN109837414A CN109837414A CN201711205186.4A CN201711205186A CN109837414A CN 109837414 A CN109837414 A CN 109837414A CN 201711205186 A CN201711205186 A CN 201711205186A CN 109837414 A CN109837414 A CN 109837414A
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- porous body
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Abstract
The invention discloses a kind of preparation methods for haveing excellent performance multipurpose Engineering Foam metal material, prepare composite metal porous aluminium in particular by the method for hot aluminizing.The porous body of composite metal, it is using foam metal or foamed alloy as porous body of composite metal made of skeleton progress hot dip metal or alloy, wherein: component content 40~95 (wt) % of foam metal or foamed alloy, surplus are the metal or alloy of hot dipping.This method includes the following steps: to deposit a kind of or two kinds or two kinds or more made of metal on the core film first using foamed material as core film for porous metals or porous alloy；Later again using porous metals or porous alloy as skeleton, hot dip metal or alloy are carried out using hot dipping method on the skeleton, porous body of composite metal can be prepared.The invention has the advantages that metal porous body, particularly composite metal porous aluminium that this method is prepared, porosity height (>=90%), aperture are 0.2~10mm, simple production process, preparation cost are low and are easy to industrialize.
Description
Technical field
The present invention relates to a kind of preparation methods for haveing excellent performance multipurpose Engineering Foam metal material.
Background technique
The preparation method of nickel foam is mainly prepared by the method for using electro-deposition (electroforming), and technique is prepared first
Conductive layer makes non-lead that is, by after the coated conductive coating of polyurethane foam plastics (or chemical plating, vapor deposited metal etc. are handled)
The polyurethane foam plastics of electricity is conductive；Later using the method deposited metal on foam of electro-deposition (electroforming)
Nickel removes organic matter finally by heat treatment and improves metallicity to prepare nickel foam.Nickel foam is mainly used for secondary electricity
Pond electrode base board and carrier.
The preparation method of titanium foam (alloy) is mainly prepared by the method for using powder metallurgy, that is, selects certain partial size
Metal or metal alloy powder, carry out sintering processes after repressed molding.Titanium foam (alloy) is mainly used for filtering.
Metal porous aluminium (foamed aluminium) preparation method is at present mainly using Metal Melting casting (seepage flow) method and metal
Foaming.The aluminium (aluminium alloy) of fusing is mainly melted liquid casting (seepage flow) equipped with nonmetallic by Metal Melting casting (seepage flow) method
It in the container of ball, enters molten aluminum in the gap of nonmetallic ball, removes non-gold again after metallic aluminium (aluminium alloy) cooled and solidified
Belong to ball, to prepare metal porous aluminium.Foaming agent is exactly placed in aluminium (aluminium alloy) melt or by outer by metal foaming method
Portion's gas (such as nitrogen) decomposes foaming agent to generate gas by control temperature and mixing speed, thus aluminium (aluminium alloy)
Foaming becomes metal porous aluminium.Metal porous aluminium (foamed aluminium) is mainly used for shielding and sound-absorbing.
The preparation method of above-mentioned metal porous body is to prepare the main method of metal porous body, can be adopted for different purposes
It is carried out preparing metal porous body with different methods.
Summary of the invention
The object of the present invention is to provide a kind of preparation methods for haveing excellent performance multipurpose Engineering Foam metal material.
To achieve the above object, the present invention takes following technical scheme:
A kind of porous body of composite metal is made of to carry out hot dip metal or alloy using foam metal or foamed alloy as skeleton
Porous body of composite metal, wherein component content 45~97 (wt) % of foam metal or foamed alloy, surplus be hot dipping gold
Category or alloy.
In porous body of composite metal, the aperture of the porous body of composite metal is 0.1~15.0mm, and porosity is not small
In 90%, thickness is in 1.1~15.0mm.
A method of porous body of composite metal being prepared, this method includes the following steps:
First using foamed material as core film, a kind of or two kinds or two kinds or more made of metal are deposited on the core film for porous
Metal or porous alloy；
Later again using porous metals or porous alloy as skeleton, on the skeleton using hot dipping method carry out hot dip metal or
Alloy.
The inventive point of the method for the present invention is: electro-deposition (electroforming) and hot-dip process combine to prepare composition metal more
Hole body.I.e. using foamed material as core film, deposited metal prepares porous metals or porous alloy on the core film, then using it as bone
Frame carries out hot dip metal or alloy using hot dipping method on the skeleton, can prepare porous body of composite metal.
In the above-mentioned methods, in preparing porous metals or porous alloy step, the foamed material is polyurethane foam
Plastics, weaving or on-woven cloth, fibrofelt etc..
In the above-mentioned methods, the hot dip metal includes: any one in the metals such as aluminium, tin, zinc and lead, wherein
It is preferred that metal is aluminium.The hot dipping alloy includes: the alloys such as aluminium-zinc or lead-tin, wherein preferred alloy is aluminum-zinc alloy.
The invention has the advantages that porous body of composite metal, particularly composition metal aluminium (aluminium alloy) that this method is prepared
Porous body is tridimensional network, and porosity height (>=90%), aperture is 0.1~15.0mm, the preparation process phase with foamed aluminium
Compare, with simple production process, preparation cost is low and is easy to industrialize.
Specific embodiment
Porous body of composite metal is prepared, porous metals or porous alloy are first prepared, first: foamed material processing is made into its tool
Conductive, step may is that foamed material is carried out oxidation processes by (1) in the solution containing oxidant, right again later
Foamed material is restored, and purpose is exactly to improve the wetability and hydrophily of foamed material, improves percent opening；(2) pass through chemistry
Plating or the methods of painting electrocondution slurry, vapor deposition, spraying plating, Vacuum Deposition keep non-conductive foamed material conductive.Or directly
Foamed material is prepared into conductive layer using the method for (2).Secondly: foam is deposited metal in using the method for electro-deposition (electroforming)
On material, by the adjusting of the parameters such as electric current, sedimentation time and solution concentration to control metal deposition capability.Third: it will be deposited with
The foamed material of metal can prepare foam metal by heat treatment (burning solution and reduction treatment).
The preparation of foamed alloy can prepare foam metal first according to the above method, later again one in electro-deposition (electroforming)
Kind or two kinds or two or more of other metals；Can also after above-mentioned second step, i.e., a kind of electro-deposition (electroforming) metal it
It carries out electro-deposition (electroforming) another kind or two or more other metals again afterwards, is then heat-treated.It is realized by heat treatment
The alloying of metal, improves its performance.The ingredient of foamed alloy ratio can be adjusted as required.
The method of hot aluminizing can also be carried out using casting or seepage flow mode, i.e., cast in the aluminium of fusing (aluminium alloy) liquid
Make aluminium (aluminium alloy) liquid by foam metal on foam metal or under pressure, (aluminium closes to form composition metal aluminium
Gold) metal porous body.
The present invention is to using the porous metals prepared of the methods of powder metallurgy, electro-deposition (electroforming), vapor deposition or more
Hole alloy carries out hot dipping aluminum or aluminum alloy and other metals of hot dipping and alloy is equally applicable.
A kind of preparation method for haveing excellent performance multipurpose Engineering Foam metal material is made furtherly below by citing
It is bright.
Embodiment
It is to carry out hot aluminizing on skeleton in a kind of iron-nickel foam alloy.
The preparation method is as follows: taking the polyurethane foam plastics for being not less than 0.5mm with a thickness of 2.0mm, aperture, size 11.0cm
×9.0cm.First in the acid solution of potassium permanganate impregnate 0.5~5min, carried out in oxalic acid solution reduction 0.5~
5min；Next prepares conductive layer, and the foamed plastics for having washed drying is dipped in 2~5min in carbon containing conductive coating, squeezes net residual
Remaining coating and drying.Third step carries out Electrodeposition Bath of Iron, in sulfur acid 150~350g/l of ferrous iron, ammonium sulfate 80~200g/l, PH
Value is 2.0~5.5,15~60 DEG C of temperature, carries out Electrodeposition Bath of Iron under conditions of 3~8A/dm2 of current density；4th step is in watt
With 3~8A/dm2 of current density in liquid, 40~45 DEG C of temperature, electric deposition nickel is carried out, makes nickel coated on iron；5th step passes through heat
Processing carries out thermally decomposing the plastic core film that defoams in air at 300~500 DEG C, at 850~1000 DEG C in reproducibility gas
10~30min is restored in atmosphere forms nickel-ferro alloy；6th step equipped with fine aluminium crucible in 720~900 DEG C, by nickel foam-
Ferroalloy impregnates wherein 1~3min, is the metal porous body of novel composition metal aluminium after taking-up.
The preparation process compared with the preparation process of current porous aluminum, have it is at low cost, simple process is simultaneously easy to scale
The features such as production；The porous aluminum porosity prepared is high (>=90%).
Claims (3)
1. a kind of preparation method for haveing excellent performance multipurpose Engineering Foam metal material, it is characterised in that: be with foam metal or
Foamed alloy is that skeleton carries out porous body of composite metal made of hot dip metal or alloy, wherein foam metal or foamed alloy
Component content 45~97 (wt) %, surplus be hot dipping metal or alloy.
2. porous body of composite metal according to claim 1, it is characterised in that: the aperture of the porous body of composite metal
For 0.1~15.0mm, porosity is not less than 90%, and thickness is in 1.1~15.0mm.
3. porous body of composite metal according to claim 1 or 2, it is characterised in that: the foam metal be nickel,
Any one metal in the metals such as iron, copper, lead, zinc；Foamed alloy is Ni-Fe or the alloys such as copper-iron or nickel-copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711205186.4A CN109837414A (en) | 2017-11-27 | 2017-11-27 | A kind of preparation method haveing excellent performance multipurpose Engineering Foam metal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711205186.4A CN109837414A (en) | 2017-11-27 | 2017-11-27 | A kind of preparation method haveing excellent performance multipurpose Engineering Foam metal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109837414A true CN109837414A (en) | 2019-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711205186.4A Pending CN109837414A (en) | 2017-11-27 | 2017-11-27 | A kind of preparation method haveing excellent performance multipurpose Engineering Foam metal material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109837414A (en) |
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2017
- 2017-11-27 CN CN201711205186.4A patent/CN109837414A/en active Pending
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Application publication date: 20190604 |