CN101182607A - Near-net-shape preparation method of Foamed aluminium component - Google Patents
Near-net-shape preparation method of Foamed aluminium component Download PDFInfo
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- CN101182607A CN101182607A CNA200710066445XA CN200710066445A CN101182607A CN 101182607 A CN101182607 A CN 101182607A CN A200710066445X A CNA200710066445X A CN A200710066445XA CN 200710066445 A CN200710066445 A CN 200710066445A CN 101182607 A CN101182607 A CN 101182607A
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- aluminum
- whipping agent
- aluminum alloy
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- extruding
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000004411 aluminium Substances 0.000 title claims description 16
- 238000005187 foaming Methods 0.000 claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 15
- 239000002243 precursor Substances 0.000 claims abstract description 13
- 239000006260 foam Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 24
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000010301 surface-oxidation reaction Methods 0.000 claims description 2
- -1 titanium hydride Chemical compound 0.000 claims description 2
- 229910000048 titanium hydride Inorganic materials 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 11
- 239000007769 metal material Substances 0.000 abstract description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 abstract 3
- 239000002318 adhesion promoter Substances 0.000 abstract 1
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 238000000280 densification Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009702 powder compression Methods 0.000 description 2
- 238000009700 powder processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
A method for preparing a near-net-shape foam aluminum part belongs to the preparation field of the porous foam metal material. The process steps of the method comprise that aluminum or aluminum alloy is heated and melted and adhesion promoter is added first for mixing and tackifying; and then the vesicant which is oxidated is added and the vesicant is mixed and dispersed fast; the tackifying molten metal which contains the vesicant is cast and cooled to obtain the cast which is provided with a void factor; the cast is compressed to obtain the compact foam precursor and the foam precursor is processed and put in a pattern die for heating and foaming to obtain the foam aluminum part which is provided with the needed pattern and hole structure. The invention is characterized by simple process and low cost and overcomes the detects of the conventional powder working process; in this way, large foam aluminum part can be obtained and large-scale production can be realized.
Description
Technical field
The invention belongs to the porous foam metal material preparation field, particularly a kind of nearly end form preparation method of foamed aluminium member.
Background technology
The nearly end form preparation method of present known foamed aluminium member is powder densification foaming (or claiming the powder metallurgy foaming), its main processes is: with the aluminum or aluminum alloy powder is raw material, mix a certain proportion of whipping agent, metal-powder and whipping agent are mixed, the method densification of employing powder compression, powder extruding or roll compacting obtains the foaming precursor, and the foaming precursor foams in pattern at a certain temperature and obtains the foamed aluminium member.The powder densification foaming is because the raw material that adopts is the aluminum or aluminum alloy powder, and is subjected to the restriction of powder complete processing itself, has the cost height, yields poorly, is difficult to prepare defective such as large volume foamed aluminium member.
Summary of the invention
Technical problem to be solved by this invention provides a kind of nearly end form preparation method of foamed aluminium member, and its technology is simple, and cost is low, has overcome the deficiency of conventional powder processing technology itself, can obtain large size foamed aluminium member and accomplishes scale production.
Scheme of the present invention is: with the aluminum or aluminum alloy heat fused, at first add tackifier and stir tackify, add the whipping agent of crossing through oxide treatment then, quick dispersed with stirring whipping agent, the foundry goods that obtains having certain porosity is cooled off in the tackify metal melt casting that contains whipping agent, foundry goods is carried out press working obtain fine and close foaming precursor, put into the pattern foamable after the precursor that will the foam machining, obtain having the foamed aluminium member of required face shaping and pore structure.
Wherein, aluminum or aluminum alloy heat fused temperature should be higher than 20 ℃～150 ℃ of melting point metals, soaking time: 30min.～60min.; Tackifier adopt aluminum oxide, and granularity is-100 orders～-300 orders, accounts for 2%～10% of aluminum or aluminum alloy weight, and tackifier stir tackify time 5min.～20min., stirring velocity 1000r/min～5000r/min.; Whipping agent adopts titanium hydride, granularity is-100 orders～-500 orders, account for 0.5%～3.5% of aluminum or aluminum alloy weight, the whipping agent oxidation treatment method is earlier under 350 ℃～450 ℃, heating surface oxidation 5h～20h, then be incubated heating 1h～5h, whipping agent dispersed with stirring time 10s～150s, dispersed with stirring speed: 1000r/min.～5000r/min. down at 450 ℃～575 ℃; The foundry goods press working can adopt extruding or rolling, extrusion ratio during extruding be 10～100 (before the extruding with extruding after area than), draught when rolling be 20～80% (before rolling with roll after the ratio of thickness difference and ingoing ga(u)ge), extruding or the speed when rolling are 0.1m/min.～20m/min., and temperature is 100 ℃～400 ℃; The foamable temperature is higher than 10 ℃～100 ℃ of aluminum or aluminum alloy fusing points, foamed time 5min.～20min. in the pattern.
The present invention obtains the technical indicator of goods: mean pore size: 3～6mm; Porosity: 70%～90%; Face shaping and size are by the decision of foaming pattern.
The invention has the beneficial effects as follows: from melt path preparation foaming precursor, advantage with two aspects: what 1) adopt is conventional Metal Melting ingot bar body material and non-metal powder is a raw material, having overcome existing powder densification foaming employing powder is the high deficiency of raw materials cost, has reduced cost; 2) can adopt conventional pressure processing method to the densification of melt path precursor foundry goods; overcome the deficiency of powder processing (powder compression, extruding) technology itself; as to the equipment requirements height, yield poorly, can not produce large-size components etc., can improve output and obtain large size foamed aluminium member and can accomplish scale production.
Description of drawings
Fig. 1 is a process flow diagram of the present invention;
Fig. 2 is a foam aluminium alloy sound damper synoptic diagram of the present invention.
Embodiment
Embodiment one:
Fine aluminium adds the aluminum oxide (granularity :-100 orders), stir tackify (churning time: 5min., stirring velocity: 3000r/min.), then add the whipping agent TiH that oxide treatment is crossed then of 8wt.% after half an hour at 720 ℃ of melting and heat preservations
2(2.5wt.%, granularity-200 order, pre-oxidation treatment through 420 ℃ of 8h+550 ℃ of 2h), carry out dispersed with stirring (churning time: 40s, stirring velocity: 2500r/min.), the casting cooling obtains the foundry goods of porosity 15%, with foundry goods extruding (extrusion ratio: 20, extrusion temperature: 100 ℃) obtains fine and close foaming precursor (round bar of diameter 10mm), the round bar of diameter 10mm is cut into 7 of the cylinders of high 15mm, puts into foaming 6min. in 680 ℃ the foaming pattern (diameter 30mm, high 60mm), can obtain diameter 30mm, high 60mm, mean pore size 4.0mm, the right cylinder foamed aluminium of porosity 84%.
Embodiment two:
700 ℃ of melting and heat preservations of A1Si6 alloy half an hour, aluminum oxide (the granularity :-200 orders) stir tackify (churning time: 8min. that adds 6wt.%, stirring velocity: 2500r/min.), then add the whipping agent (1.8wt.% that the oxidation oxide treatment is crossed, granularity-300 order, pre-oxidation treatment through 410 ℃ of 6h+520 ℃ of 2h), carry out dispersed with stirring (churning time: 50s, stirring velocity: 3000r/min.), the casting cooling obtains the foundry goods of porosity 13%, with the rolling (draught: 50% of foundry goods, rolling temperature: 200 ℃) obtains fine and close foaming precursor (sheet material of thick 10mm), be cut into high 10mm, wide 30mm, the slab of long 30mm, (inner cavity size is each 30mm of length and width to put into 680 ℃ foaming pattern, high 50mm) foaming 8min. in, can obtain each 30mm of length and width, high 50mm, mean pore size 3.5mm, the rectangular parallelepiped foamed aluminium of porosity 80%.
Embodiment three:
The ZLD104 alloy adds the aluminum oxide (granularity :-300 orders), stir tackify (churning time: 15min., stirring velocity: 1000/min.), then add the whipping agent TiH that pre-oxidation treatment is crossed then of 4wt.% after half an hour at 690 ℃ of melting and heat preservations
2(1.5wt.%, granularity-200 order, through 400 ℃ of 8h+500 ℃ of 2h oxide treatment), carry out dispersed with stirring (churning time: 70s, stirring velocity: 4000r/min.), the casting cooling obtains the foundry goods of porosity 12%, with foundry goods extruding (extrusion ratio: 30, extrusion temperature: 350 ℃) obtains fine and close foaming precursor (round bar of diameter 10mm), the round bar of diameter 8mm is cut into 20 of the cylinders of high 20mm, put into 670 ℃ the middle foaming of sound damper foaming pattern (intracavity diameter 58mm, the high 60mm of inner chamber) 10min., can obtain foam aluminium alloy sound damper as shown in Figure 2.
Claims (2)
1. the nearly end form preparation method of a foamed aluminium member, it is characterized in that processing step is: with the aluminum or aluminum alloy heat fused, at first add tackifier and stir tackify, add the whipping agent of crossing through oxide treatment then, quick dispersed with stirring whipping agent, the foundry goods that obtains having certain porosity is cooled off in the tackify metal melt casting that contains whipping agent, foundry goods is carried out press working obtain fine and close foaming precursor, put into the pattern foamable after the precursor that will the foam machining, obtain having the foamed aluminium member of required face shaping and pore structure.
2. the nearly end form preparation method of foamed aluminium member according to claim 1 is characterized in that: aluminum or aluminum alloy heat fused temperature should be higher than 20 ℃～150 ℃ of melting point metals, soaking time 30min.～60min.; Tackifier adopt aluminum oxide, and granularity is-100 orders～-300 orders, accounts for 2%～10% of aluminum or aluminum alloy weight, and tackifier stir tackify time 5min.～20min., stirring velocity 1000r/min～5000r/min.; Whipping agent adopts titanium hydride, granularity is-100 orders～-500 orders, account for 0.5%～3.5% of aluminum or aluminum alloy weight, the whipping agent oxidation treatment method is earlier under 350 ℃～450 ℃, heating surface oxidation 5h～20h, then be incubated heating 1h～5h, whipping agent dispersed with stirring time 10s～150s, dispersed with stirring speed 1000r/min.～5000r/min. down at 450 ℃～575 ℃; The foundry goods press working can adopt extruding or rolling, and the extrusion ratio during extruding is 10～100, and the draught when rolling is 20～80%, and extruding or the speed when rolling are 0.1m/min.～20m/min., and extruding or rolling temperature are 100 ℃～400 ℃; The foamable temperature is higher than 10 ℃～100 ℃ of aluminum or aluminum alloy fusing points, foamed time 5min.～20min. in the pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710066445XA CN101182607A (en) | 2007-12-12 | 2007-12-12 | Near-net-shape preparation method of Foamed aluminium component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710066445XA CN101182607A (en) | 2007-12-12 | 2007-12-12 | Near-net-shape preparation method of Foamed aluminium component |
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| CN101182607A true CN101182607A (en) | 2008-05-21 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838753A (en) * | 2010-05-28 | 2010-09-22 | 昆明理工大学 | Method for preparing foamed aluminum/aluminum alloy by evaporation foaming of magnesium |
| CN101948963A (en) * | 2010-09-19 | 2011-01-19 | 昆明理工大学 | Method for preparing foamed aluminum/aluminum alloy special-shaped piece by vacuum foaming |
| CN102773302A (en) * | 2012-08-03 | 2012-11-14 | 广西大学 | Continuous preparation method for foamed aluminum rod |
| CN104831202A (en) * | 2015-04-16 | 2015-08-12 | 新疆大学 | Foamed aluminum pipe rod type wire preparation method |
| CN105642671A (en) * | 2016-01-11 | 2016-06-08 | 昆明理工大学 | Preparation method of sandwich board with aluminium alloy foam core |
| CN107442770A (en) * | 2017-08-31 | 2017-12-08 | 安徽青花坊瓷业股份有限公司 | A kind of preparation technology of foamed ceramic powder and its application |
| CN107779638A (en) * | 2016-08-29 | 2018-03-09 | 清华大学 | The preparation method of foaming agent and preparation method thereof and foamed aluminium |
| CN108149049A (en) * | 2017-12-29 | 2018-06-12 | 安徽宝辰机电设备科技有限公司 | A kind of preparation method for welding cabinet foam aluminium alloy |
| CN111394605A (en) * | 2020-03-20 | 2020-07-10 | 江苏大学 | TiB2Preparation method of particle reinforced foamed aluminum/aluminum alloy |
| CN111482606A (en) * | 2020-06-09 | 2020-08-04 | 浦江吉树机械科技有限公司 | Foam metal's extrusion adjusting device |
| CN112355239A (en) * | 2020-11-03 | 2021-02-12 | 中信戴卡股份有限公司 | Preparation method of foamed aluminum special-shaped part |
| CN112427622A (en) * | 2020-11-23 | 2021-03-02 | 清华大学 | Foamed aluminum casting forming method |
-
2007
- 2007-12-12 CN CNA200710066445XA patent/CN101182607A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838753A (en) * | 2010-05-28 | 2010-09-22 | 昆明理工大学 | Method for preparing foamed aluminum/aluminum alloy by evaporation foaming of magnesium |
| CN101948963A (en) * | 2010-09-19 | 2011-01-19 | 昆明理工大学 | Method for preparing foamed aluminum/aluminum alloy special-shaped piece by vacuum foaming |
| CN101948963B (en) * | 2010-09-19 | 2012-06-20 | 昆明理工大学 | Method for preparing foamed aluminum/aluminum alloy special-shaped piece by vacuum foaming |
| CN102773302A (en) * | 2012-08-03 | 2012-11-14 | 广西大学 | Continuous preparation method for foamed aluminum rod |
| CN104831202A (en) * | 2015-04-16 | 2015-08-12 | 新疆大学 | Foamed aluminum pipe rod type wire preparation method |
| CN105642671A (en) * | 2016-01-11 | 2016-06-08 | 昆明理工大学 | Preparation method of sandwich board with aluminium alloy foam core |
| CN107779638A (en) * | 2016-08-29 | 2018-03-09 | 清华大学 | The preparation method of foaming agent and preparation method thereof and foamed aluminium |
| CN107442770A (en) * | 2017-08-31 | 2017-12-08 | 安徽青花坊瓷业股份有限公司 | A kind of preparation technology of foamed ceramic powder and its application |
| CN108149049A (en) * | 2017-12-29 | 2018-06-12 | 安徽宝辰机电设备科技有限公司 | A kind of preparation method for welding cabinet foam aluminium alloy |
| CN111394605A (en) * | 2020-03-20 | 2020-07-10 | 江苏大学 | TiB2Preparation method of particle reinforced foamed aluminum/aluminum alloy |
| CN111482606A (en) * | 2020-06-09 | 2020-08-04 | 浦江吉树机械科技有限公司 | Foam metal's extrusion adjusting device |
| CN112355239A (en) * | 2020-11-03 | 2021-02-12 | 中信戴卡股份有限公司 | Preparation method of foamed aluminum special-shaped part |
| CN112427622A (en) * | 2020-11-23 | 2021-03-02 | 清华大学 | Foamed aluminum casting forming method |
| CN112427622B (en) * | 2020-11-23 | 2021-09-03 | 清华大学 | Foamed aluminum casting forming method |
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