CN102205359B - Method for manufacturing foamed aluminum board - Google Patents
Method for manufacturing foamed aluminum board Download PDFInfo
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- CN102205359B CN102205359B CN 201110124785 CN201110124785A CN102205359B CN 102205359 B CN102205359 B CN 102205359B CN 201110124785 CN201110124785 CN 201110124785 CN 201110124785 A CN201110124785 A CN 201110124785A CN 102205359 B CN102205359 B CN 102205359B
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- blowing agent
- aluminum alloy
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Abstract
The invention provides a method for manufacturing a foamed aluminum board. The method comprises the following steps of: putting titanium hydride powder containing 1 to 3 percent foaming agent into an aluminum or aluminum alloy pipe, sealing a plurality of aluminum or aluminum alloy pipes into which titanium hydride powder is filled in an aluminum or aluminum alloy box, performing mill processing and densifying, and foaming to prepare the foamed aluminum board. By the method, the defects that the pore structure is difficult to control in a casting method and preparation cost is high in a powder metallurgy method are overcome. Compared with an accumulative roll-bonding method, the method has the advantages that the foaming agent can be distributed uniformly, the pore volume can be controlled, the method is not limited by rolling reduction of a critical pass; by the method, the processing can be performed by a compound blank with a large section size, so that a foamed aluminum precursor can be manufactured under a low distortion temperature condition; and the method is convenient to operate and is low in cost.
Description
Technical field
The present invention relates to material processing field, particularly the foamed material Manufacture and application.
Background technology
Along with the progress of society and the development of science and technology, people improve constantly the requirement of material, especially in high-tech area, microlight-type structure and multifunctional material have been proposed Secretary.Porous foam metal is as a kind of Multifunction material, have the characteristics such as lightweight, sound insulation, heat insulation, vibrationproof, shock-resistant and good electric property and recuperability, adapted to current low-carbon (LC) and light-weighted demand for development, at aspects such as automobile, Aeronautics and Astronautics, aeroamphibious weaponry, communication, the energy potential purposes has been arranged.Because porous foam metal has so many performance and purposes, and become a large focus of in recent years international material circle concern.
The history in existing more than 60 year of the research of foam metal, but real scale industry application and few, its reason, the one, existing preparation technology's key technology makes a breakthrough not yet fully.For the blowing agent foaming, maximum advantage is low cost, and production technology is simple, be convenient to industry and apply, but have the difficult weakness of pore structure control, in addition, the resulting pore size of the method is larger (2-5mm) all, is not suitable for preparing small sized article or thin plate.The advantage of powder metallurgy foaming method is that production technology is relatively simple; Near-net forming is according to demand directly made the part of complicated shape, need not processing and bonding.But compare with the flux foaming technology, because its raw material employing is aluminium powder or Al alloy powder, price is more expensive, and finished size is restricted.The Processed by Accumulative Roll-bonding method is to adopt industrial sheet material and general rolling and Equipment for Heating Processing, need not to increase any special equipment, and production process is few, has reduced production cost; And repeatedly repeat-rolling is so that blowing agent grain refine and densified, and bond strength is high.But adopt the foamed aluminum sandwich plate of the method preparation, need the drafts more than 50%, and production efficiency is low, cost is also higher, and blowing agent distributes also inhomogeneous.In addition, the method is only suitable for preparing board-like material, and the shape of product is restricted.
In a word, present most process of preparing all can't control effectively to the structural parameters of foam metal and adjust arbitrarily.Therefore; how further to reduce cost; propose more stable, have more repeatability and the more manageable technology of pore structure; and can realize continuous, stable low-coat scale production; obtaining flawless, function admirable, quality controllable foam metal, is the key that advances the foam metal industrial applications and improve application level.
Summary of the invention
The object of the present invention is to provide and a kind ofly can further reduce cost; propose more stable, have more repeatability and the more manageable technology of pore structure; and can realize continuous, stable low-coat scale production, obtain flawless, function admirable, quality controllable foam metal.
The manufacture method of a kind of foamed aluminium board provided by the invention for achieving the above object, to contain 1% ~ 3% blowing agent titanium hydride powders to put into aluminum or aluminum alloy tubing, again with the many aluminum or aluminum alloy tubing that titanium hydride powders is housed, be encapsulated in the aluminum or aluminum alloy casing, after rolling processing, foamed aluminium board is prepared in the processing of foaming.
The tubing of the described blowing agent of packing into is commercial-purity aluminium or aluminium alloy, and described pipe internal diameter is 3 ~ 50mm, wall thickness 1 ~ 20mm, and length is greater than 100mm.
The tank material that the aluminum or aluminum alloy tubing of titanium hydride powders is used is equipped with in many of described encapsulation, and identical or different with the material of the tubing that titanium hydride powders is housed, described aluminum or aluminum alloy tank material thickness is greater than 5mm.
The section of described casing is square, rectangle or circle.
The manufacture method of a kind of foamed aluminium board of the present invention may further comprise the steps:
(1) blowing agent is put into aluminum or aluminum alloy tubing: with an end of aluminum or aluminum alloy tubing, seal with commercial-purity aluminium piece or resin plug, blowing agent is put into tubing, through after colding pressing, with commercial-purity aluminium piece or common resin blowing agent is enclosed in the tubing;
(2) the many aluminium alloy pipes that blowing agent is housed are encapsulated in the aluminum or aluminum alloy casing: with the many aluminum or aluminum alloy tubing that blowing agent is housed, be placed in the aluminum or aluminum alloy casing, and with in the slit between the closely knit tubing of blowing agent and tubing, tubing and the casing, then adopt common welding, riveted joint processing, the many aluminium alloy pipes that blowing agent is housed are encapsulated in the casing, make tubing, blowing agent and casing composite billet;
(3) rolling processing: composite billet is adopted conventional rolling processing method, carry out deformation processing, manufacture the presoma of foamed aluminium material, the relative density of described foamed aluminum materials material precursor is greater than 90%; Rolling processing method adopts cold rolling processing or adopts hot rolling, and the heating-up temperature when adopting hot rolling should be lower than 350 ℃, decomposes in the operation of rolling to prevent blowing agent;
(4) foaming is processed: adopt common foaming processing method, will process through the foamed aluminum materials material precursor foaming of making after the rolling deformation processing, make foamed aluminium board.
For the tubing of the blowing agent of packing into, can be commercial-purity aluminium, also can be aluminium alloy, pipe internal diameter is 3 ~ 50mm, wall thickness 1 ~ 20mm, length is greater than 100mm.
The specific embodiment
The invention provides a kind of novel manufacturing method of foamed aluminium board, the specific embodiment is as follows:
Embodiment 1: the manufacturing of foam aluminium plate
1. casing preparation
Be the commercial-purity aluminium sheet material of 15mm with thickness, adopt clinching method, making the inner space is the opening casing of 900 * 500 * 300mm, and the cross dimensions of opening is 500 * 300mm.
2. blowing agent is encapsulated in the tubing
Commercial-purity aluminium tubing: internal diameter 10mm, wall thickness 5mm, sawing length 900mm.One end of tubing is sealed with the commercial-purity aluminium piece, the mass fraction of blowing agent TiH2 is 2%, and other is the Al powder, in the commercial-purity aluminium tubing of packing into after TiH2 and Al powder are mixed at normal temperatures and pressures, through after colding pressing, with common aluminium block blowing agent is enclosed in the tubing.
3. make the foamed aluminium presoma
With 299 commercial-purity aluminium tubing of packing into and containing the blowing agent titanium hydride powders, packing into by thickness is in the opening casing made of the commercial-purity aluminium sheet material of 15mm, and with in the slit between the closely knit tubing of blowing agent and tubing, tubing and the casing, then adopt usually riveted joint processing method, the many commercial-purity aluminium tubing that blowing agent is housed are encapsulated in the casing, make commercial-purity aluminium tubing, blowing agent and casing composite billet.At ambient temperature, composite billet is rolled processing, making thickness is the foamed aluminium presoma of 50mm.
4. the preparation foam aluminium plate is processed in foaming
The sawing of foamed aluminium presoma is become 800 * 500mm, the processing of foaming in the heating furnace of packing into, blowing temperature is 650 ℃, foamed time is 10min.Make thus foam aluminium plate.
Embodiment 2: the manufacturing of foam aluminium alloy sheet material
Be that with the difference of embodiment 1 casing, tubing and tubing encapsulating material are 5083 aluminium alloys, and the heating-up temperature when adopting milling method to prepare the aluminium alloy presoma is 300 ℃, processes through foaming and make at last foam aluminium alloy sheet material.
The manufacturing of embodiment 3:7075 aluminium alloy/foamed aluminium/7075 aluminium alloy sandwich style composite boards
Compare with embodiment 2 with embodiment 1, tank material is 7075 thick aluminium alloys of 25mm, tubing and encapsulating material are commercial-purity aluminium, heating-up temperature is 330 ℃, adopt milling method to prepare the presoma that thickness is 50mm, process finally being prepared into 7075 aluminium alloys/foamed aluminium/7075 aluminium alloy sandwich style composite boards through foaming.
Claims (5)
1. the manufacture method of a foamed aluminium board is characterized in that, blowing agent is put into aluminum or aluminum alloy tubing, with the many aluminum or aluminum alloy tubing that blowing agent is housed, be encapsulated in the aluminum or aluminum alloy casing, after rolling processing again, foamed aluminium board is prepared in the processing of foaming; Wherein blowing agent contains mass fraction 1% ~ 3% titanium hydride powders, and all the other are the Al powder; Specifically may further comprise the steps:
(1) blowing agent is put into aluminum or aluminum alloy tubing: with an end of aluminum or aluminum alloy tubing, seal with commercial-purity aluminium piece or resin plug, blowing agent is put into tubing, through after colding pressing, with commercial-purity aluminium piece or common resin blowing agent is enclosed in the tubing;
(2) the many aluminum or aluminum alloy tubing that blowing agent is housed are encapsulated in the aluminum or aluminum alloy casing: with the many aluminum or aluminum alloy tubing that blowing agent is housed, be placed in the aluminum or aluminum alloy casing, and with in the slit between the closely knit tubing of blowing agent and tubing, tubing and the casing, then adopt common welding, riveted joint processing, the many aluminum or aluminum alloy tubing that blowing agent is housed are encapsulated in the casing, make tubing, blowing agent and casing composite billet;
(3) rolling processing: composite billet is adopted conventional rolling processing method, carry out deformation processing, manufacture the presoma of foamed aluminium material, the relative density of described foamed aluminum materials material precursor is greater than 90%; Rolling processing method adopts cold rolling processing or adopts hot rolling, and the heating-up temperature when adopting hot rolling should be lower than 350 ℃, decomposes in the operation of rolling to prevent blowing agent;
(4) foaming is processed: adopt common foaming processing method, will process through the foamed aluminum materials material precursor foaming of making after the rolling processing, make foamed aluminium board.
2. the manufacture method of foamed aluminium board according to claim 1 is characterized in that, the tubing of the blowing agent of packing into is commercial-purity aluminium or aluminium alloy, and described pipe internal diameter is 3 ~ 50mm, wall thickness 1 ~ 20mm, and length is greater than 100mm.
3. the manufacture method of foamed aluminium board according to claim 1, it is characterized in that, encapsulate the tank material that the many aluminum or aluminum alloy tubing that blowing agent is housed are used, identical or different with the material of the tubing that blowing agent is housed, described aluminum or aluminum alloy tank material thickness is greater than 5mm.
4. the manufacture method of foamed aluminium board according to claim 1 is characterized in that, the section of described casing is square or circular.
5. the manufacture method of foamed aluminium board according to claim 4 is characterized in that, the section of described casing is rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110124785 CN102205359B (en) | 2011-05-13 | 2011-05-13 | Method for manufacturing foamed aluminum board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110124785 CN102205359B (en) | 2011-05-13 | 2011-05-13 | Method for manufacturing foamed aluminum board |
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| CN102205359A CN102205359A (en) | 2011-10-05 |
| CN102205359B true CN102205359B (en) | 2013-04-03 |
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| CN 201110124785 Expired - Fee Related CN102205359B (en) | 2011-05-13 | 2011-05-13 | Method for manufacturing foamed aluminum board |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104129141A (en) * | 2014-07-11 | 2014-11-05 | 沈阳和世泰通用钛业有限公司 | Method for making light metal composite plate |
| CN104858232B (en) * | 2015-05-25 | 2017-03-08 | 刘志民 | A kind of preparation method of foam metal difference thickness sheet metal component |
| CN105642671A (en) * | 2016-01-11 | 2016-06-08 | 昆明理工大学 | Preparation method of sandwich board with aluminium alloy foam core |
| CN105798077B (en) * | 2016-04-14 | 2019-04-26 | 东北大学 | A kind of device prepared with surface dense layer foamed aluminium board |
| CN106583739B (en) * | 2016-12-02 | 2019-03-22 | 北京有色金属研究总院 | A kind of manufacturing method of the foamed aluminum sandwich plate with gradient interface |
| CN107486651B (en) * | 2017-08-02 | 2020-10-23 | 中国电器科学研究院股份有限公司 | Preparation method of low-temperature solder sheet |
| CN107552793B (en) * | 2017-09-15 | 2019-09-27 | 中国民航大学 | A kind of preparation method of foamed aluminium filling in situ thin-wall tube |
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| EP0646622B1 (en) * | 1993-09-21 | 2000-12-13 | Sekisui Kagaku Kogyo Kabushiki Kaisha | Plastic foam material composed of thermoplastic resin and silane-modified thermoplastic resin and method for making same |
| CN1189315C (en) * | 2002-11-16 | 2005-02-16 | 昆明理工大学 | Preparation of foamed metal sandwich board using clad rolling method |
| US7906055B2 (en) * | 2006-08-01 | 2011-03-15 | Foam Matrix, Inc. | Molding article with reinforced passages |
| CN101905326B (en) * | 2010-07-22 | 2012-09-26 | 东北大学 | Method for manufacturing foamed aluminum sandwich plate |
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