CN203923345U - A kind of semicontinuous vacuum foam device of foamed aluminium - Google Patents
A kind of semicontinuous vacuum foam device of foamed aluminium Download PDFInfo
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- CN203923345U CN203923345U CN201420365057.7U CN201420365057U CN203923345U CN 203923345 U CN203923345 U CN 203923345U CN 201420365057 U CN201420365057 U CN 201420365057U CN 203923345 U CN203923345 U CN 203923345U
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- generation device
- initial pore
- vacuum foam
- tundish
- pore generation
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- 239000006260 foam Substances 0.000 title claims abstract description 90
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 47
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 239000004411 aluminium Substances 0.000 title claims abstract description 46
- 239000011148 porous material Substances 0.000 claims abstract description 83
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000010935 stainless steel Substances 0.000 claims abstract description 18
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims description 28
- 239000010439 graphite Substances 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 241000209456 Plumbago Species 0.000 claims description 20
- 239000000155 melt Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 abstract description 2
- 238000005187 foaming Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 229910000952 Be alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 229910000048 titanium hydride Inorganic materials 0.000 description 1
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- Continuous Casting (AREA)
Abstract
The utility model discloses a kind of semicontinuous vacuum foam device of foamed aluminium, belongs to foam metal material field.The semicontinuous vacuum foam device of the utility model foamed aluminium is comprised of tundish, initial pore generation device and vacuum foam stove three parts.Seamless link between tundish and initial pore generation device, semicontinuous connection between initial pore generation device and vacuum foam stove.While preparing foamed aluminium, first in tundish, introduce the aluminium alloy melt of tackify and keep certain liquid level, then to having to pass in the initial pore generation device of identical liquid level in the aluminium alloy melt that air makes tackify, produce initial pore, finally melt is semi-continuously flowed in the Stainless Steel Crucible of preheating in vacuum foam stove, melt foam cooled and solidified, obtains foamed aluminium.Adopt the semicontinuous vacuum foam device of foamed aluminium of the present utility model to prepare foamed aluminium, there is high-level efficiency, feature cheaply, can realize the semicontinuous suitability for industrialized production of foamed aluminium.
Description
Technical field
The utility model relates to a kind of semicontinuous vacuum foam device of foamed aluminium, belongs to foam metal material field.
Background technology
Foaming closed-cell aluminum foam (hereinafter to be referred as foamed aluminium) has the dual nature of structured material and functional materials concurrently, there is the advantages such as low density, high specific strength, energy absorption, sound-absorbing, damping vibration attenuation, in fields such as aerospace, the vehicles, building, machinery, noise control, have wide practical use.
The method of preparing at present foamed aluminium mainly contains powder metallurgy, direct gas-blowing foaming method and foam melt method.Powder metallurgic method is applicable to small size and short run foamed aluminium is produced, and is unsuitable for large-scale commercial production; Although directly gas-blowing foaming method can realize the continuous production of foamed aluminium, exist pore structure homogeneity to be difficult to control and the deficiency that foamed aluminium fragility is high that obtains; Foam melt method is owing to adopting comparatively expensive TiH2 whipping agent and adopting the discontinuous making pattern of batch processing to make cost higher.
At present, the bottleneck that hinders foamed aluminium acquisition widespread use is its high cost, cause structure applications and the sound absorption function application of foamed aluminium to be difficult to be accepted by market, and its pore structure of foamed aluminium and performance that the continuous foamed method of existing direct air blowing is made also do not reach market application requiring, therefore, developing new continuous or semicontinuous foaming technology of preparing, improve preparation efficiency, reduce costs, is that foamed aluminium obtains the major issue that technical scale application needs solution.
Summary of the invention
The purpose of this utility model is the deficiency low for existing foamed aluminium preparation efficiency, cost is high, a kind of semicontinuous vacuum foam preparation facilities of foamed aluminium is provided, adopt the semicontinuous vacuum foam device of foamed aluminium of the present utility model to prepare foamed aluminium, there is high-level efficiency, feature cheaply, can realize the semicontinuous industrial production of the controlled foamed aluminium of pore structure; This device comprises tundish 6, initial pore generation device 11, vacuum foam stove 19, tundish 6 and initial pore generation device 11 seamless links, initial pore generation device 11 and the semicontinuous connection of vacuum foam stove 19;
Tundish 6 comprises plumbago crucible I 1, control valve I 3, aluminium alloy melt entrance 4, liquid level observer 5, heating unit I 7, plumbago crucible I 1 is placed in the inside of tundish 6, heating unit I 7 is positioned at the interior of tundish 6, the top of tundish 6 is provided with aluminium alloy melt entrance 4 and liquid level observer 5, and aluminium alloy melt entrance 4 places are provided with control valve I 3;
Initial pore generation device 11 comprises ventpipe 10, heating unit II 12, porous swivel nozzle 13, plumbago crucible II 14, control valve II 15, spout 16, ventpipe 10 is positioned at the inside of initial pore generation device 11, the place, air outlet of ventpipe 10 is provided with porous swivel nozzle 13, plumbago crucible II 14 is placed in the inside of initial pore generation device 11, heating unit II 12 is positioned at the interior of initial pore generation device 11, the lower end of initial pore generation device 11 is provided with spout 16, and spout 16 places are provided with control valve II 15;
Vacuum foam stove 19 comprises movable pulley 17, heating unit III 18, vacuum extractor 20, Stainless Steel Crucible 21, and the bottom of vacuum foam stove 19 is provided with movable pulley 17, and Stainless Steel Crucible 21 is positioned at the inside of vacuum foam stove 19; Vacuum extractor 20 is positioned at the top of vacuum foam stove 19 and the sidewall of vacuum foam stove 19 is tightly connected.
Melt liquid level height in tundish 6 described in the utility model and initial pore generation device 11 is consistent, and liquid level is the 1/2-2/3 of tundish 6 and initial pore generation device 11 height.
Tundish 6 described in the utility model and initial pore generation device 11 are by communicating pipe 8 seamless link.
Between initial pore generation device 11 described in the utility model and vacuum foam stove 19, pass through head piece 16 and the semicontinuous connection of control valve 15.
Movable pulley 17 is equipped with in the utility model vacuum foam stove 19 bottoms.
The outside of Stainless Steel Crucible 21 described in the utility model is provided with water-in 23, water outlet 24, water-cooled tube 25, can under vacuum, carry out cooling after vacuum foam.
The semicontinuous vacuum foam device of foamed aluminium described in the utility model, for the preparation of the method for foamed aluminium, specifically comprises the following steps:
(1) at the aluminium alloy melt 2 of the interior introducing tackify of tundish 6 and keep certain liquid level;
(2) to having, in the initial pore generation device 11 of identical liquid level, pass into air and make to produce in tackifying fusant initial pore;
(3) melt semi-continuously flows in the Stainless Steel Crucible 21 after the interior preheating of vacuum foam stove 19, removes vacuum foam stove 19, seals and vacuumize foaming, and melt foam cooled and solidified, obtains foamed aluminium.
The aluminium alloy of tackify described in the utility model step (1), temperature is above 20 ~ 50 ℃ of aluminium alloy fusing point, contains the tackifier SiC of aluminium alloy quality 5 ~ 10%, the granularity of tackifier SiC is 10 ~ 30 μ m;
In the utility model step (2), passing into air capacity is 12 ~ 25% of aluminium alloy melt volume;
In the utility model step (3), the temperature of the interior Stainless Steel Crucible 21 of vacuum foam stove 19 is identical with the temperature of tackify aluminium alloy melt, and vacuum tightness is 1 ~ 10Pa, and foamed time is 5 ~ 25s; Foaming post-foaming body is cooling under vacuum; The porosity of prepared foamed aluminium is 70 ~ 85%, and mean pore size is 0.5 ~ 5mm.
When device described in the utility model is prepared foamed aluminium, first at the aluminium alloy melt of the interior introducing tackify of tundish 6 and keep certain liquid level; Then to have in the initial pore generation device 11 of identical liquid level, pass into a small amount of air make to produce in tackifying fusant aperture little, be evenly distributed, the initial pore of One's name is legion; Finally melt is semi-continuously flowed in the Stainless Steel Crucible 21 of vacuum foam stove 19 interior preheatings, remove vacuum foam stove 19, seal and vacuumize, gas in initial pore expands and makes aluminium alloy melt foaming under vacuum, and melt foam cooled and solidified, obtains foamed aluminium.
The beneficial effects of the utility model:
Utilize device of the present utility model, by tackify aluminium alloy melt continuous operation, initial pore, produce, include semi-continuous running and the vacuum foam of the tackify aluminium alloy melt of initial pore, do not adopting under the condition of whipping agent, by the method for gas vacuum expansion, realization can foamed aluminium alloy melt semi-continuous running and foaming, there is high-level efficiency, advantage cheaply, can realize the semicontinuous industrial production of foamed aluminium.
Accompanying drawing explanation
Fig. 1 is the semicontinuous vacuum foam preparation facilities of foamed aluminium;
Fig. 2 is the schematic appearance of Stainless Steel Crucible;
Fig. 3 is the use procedure figure of the semicontinuous vacuum foam preparation facilities of foamed aluminium.
In figure: 1-plumbago crucible, the aluminium alloy melt of 2-tackify, 3-control valve, 4-aluminium alloy melt entrance, 5-liquid level observer, 6-tundish, 7-heating unit, 8-communicating pipe, 9-control valve, 10-ventpipe, the initial pore generation device of 11-, 12 heating units, 13-porous swivel nozzle, 14-plumbago crucible, 15-control valve, 16-spout, 17-movable pulley, 18-heating unit, 19-vacuum foam stove, 20-vacuum extractor, 21-Stainless Steel Crucible, 22-foamed aluminium, 23-water-in, 24-water outlet, 25-water-cooled tube.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further details, but protection domain of the present utility model is not limited to described content.
embodiment 1
The described semicontinuous vacuum foam device of this enforcement comprises tundish 6, initial pore generation device 11, vacuum foam stove 19, tundish 6 and initial pore generation device 11 seamless links, initial pore generation device 11 and the semicontinuous connection of vacuum foam stove 19 (as shown in Figure 1 and 2);
Tundish 6 comprises plumbago crucible I 1, control valve I 3, aluminium alloy melt entrance 4, liquid level observer 5, heating unit I 7, plumbago crucible I 1 is placed in the inside of tundish 6, heating unit I 7 is positioned at the interior of tundish 6, the top of tundish 6 is provided with aluminium alloy melt entrance 4 and liquid level observer 5, and aluminium alloy melt entrance 4 places are provided with control valve I 3;
Initial pore generation device 11 comprises ventpipe 10, heating unit II 12, porous swivel nozzle 13, plumbago crucible II 14, control valve II 15, spout 16, ventpipe 10 is positioned at the inside of initial pore generation device 11, the place, air outlet of ventpipe 10 is provided with porous swivel nozzle 13, plumbago crucible II 14 is placed in the inside of initial pore generation device 11, heating unit II 12 is positioned at the interior of initial pore generation device 11, the lower end of initial pore generation device 11 is provided with spout 16, and spout 16 places are provided with control valve II 15;
Vacuum foam stove 19 comprises movable pulley 17, heating unit III 18, vacuum extractor 20, Stainless Steel Crucible 21, and the bottom of vacuum foam stove 19 is provided with movable pulley 17, and Stainless Steel Crucible 21 is positioned at the inside of vacuum foam stove 19; Vacuum extractor 20 is positioned at the top of vacuum foam stove 19 and the sidewall of vacuum foam stove 19 is tightly connected.
This implements described tundish 6 and initial pore generation device 11 passes through communicating pipe 8 seamless link.
With semicontinuous vacuum foam device described in the present embodiment, prepare foamed aluminium, specifically comprise the following steps:
By the ZL 102 alloy melt melt temperature of tackify, it is 620 ℃, the SiC particle that includes granularity 10 ~ 15 μ m, add-on and be alloy melt quality 10% is introduced tundish 6 and initial pore generation device 11, and keeping liquid level is 1/2 of tundish 6 and initial pore generation device 11 height; To passing into air intake in the melt in initial pore generation device 11, be 25% of alloy melt volume, by porous swivel nozzle 13, in melt, produce the initial pore of aperture 0.08 ~ 0.18mm; Vacuum foam stove 19 moves to initial pore generation device 11 head piece 16 places and connects material after being preheating to 620 ℃, remove and vacuumize foaming after connecting material, and vacuum tightness is that 10Pa, foamed time are 25s; After vacuum foam finishes, melt foam is cooled and solidified under vacuum, obtains porosity 85%, the foamed aluminium that aperture is 2.5 ~ 5mm, as shown in Figure 3.
embodiment 2
The described semicontinuous vacuum foam device of this enforcement comprises tundish 6, initial pore generation device 11, vacuum foam stove 19, tundish 6 and initial pore generation device 11 seamless links, initial pore generation device 11 and the semicontinuous connection of vacuum foam stove 19;
Tundish 6 comprises plumbago crucible I 1, control valve I 3, aluminium alloy melt entrance 4, liquid level observer 5, heating unit I 7, plumbago crucible I 1 is placed in the inside of tundish 6, heating unit I 7 is positioned at the interior of tundish 6, the top of tundish 6 is provided with aluminium alloy melt entrance 4 and liquid level observer 5, and aluminium alloy melt entrance 4 places are provided with control valve I 3;
Initial pore generation device 11 comprises ventpipe 10, heating unit II 12, porous swivel nozzle 13, plumbago crucible II 14, control valve II 15, spout 16, ventpipe 10 is positioned at the inside of initial pore generation device 11, the place, air outlet of ventpipe 10 is provided with porous swivel nozzle 13, plumbago crucible II 14 is placed in the inside of initial pore generation device 11, heating unit II 12 is positioned at the interior of initial pore generation device 11, the lower end of initial pore generation device 11 is provided with spout 16, and spout 16 places are provided with control valve II 15;
Vacuum foam stove 19 comprises movable pulley 17, heating unit III 18, vacuum extractor 20, Stainless Steel Crucible 21, and the bottom of vacuum foam stove 19 is provided with movable pulley 17, and Stainless Steel Crucible 21 is positioned at the inside of vacuum foam stove 19; Vacuum extractor 20 is positioned at the top of vacuum foam stove 19 and the sidewall of vacuum foam stove 19 is tightly connected.
This implements described tundish 6 and initial pore generation device 11 passes through communicating pipe 8 seamless link.
Described in the present embodiment, between initial pore generation device 11 and vacuum foam stove 19, pass through head piece 16 and the semicontinuous connection of control valve 15.
With semicontinuous vacuum foam device described in the present embodiment, prepare foamed aluminium, specifically comprise the following steps:
By the ZL202 alloy melt melt temperature of tackify, it is 640 ℃, including granularity is that 15 ~ 21 μ m, add-on are SiC particle introducing tundish 6 and the initial pore generation device 11 of alloy melt quality 8%, and keeping liquid level is 2/3 of tundish 6 and initial pore generation device 11 height; To passing into air intake in the melt in initial pore generation device 11, be 12% of alloy melt volume, by porous swivel nozzle 13, in melt, produce the initial pore of aperture 0.03 ~ 0.11mm; Vacuum foam stove 19 moves to initial pore generation device 11 head piece 16 places and connects material after being preheating to 640 ℃, remove and vacuumize foaming after connecting material, and vacuum tightness is that 1Pa, foamed time are 5s; After vacuum foam finishes, melt foam is cooled and solidified under vacuum, obtains porosity 70%, the foamed aluminium that aperture is 0.5 ~ 2.5mm.
embodiment 3
The described semicontinuous vacuum foam device of this enforcement comprises tundish 6, initial pore generation device 11, vacuum foam stove 19, tundish 6 and initial pore generation device 11 seamless links, initial pore generation device 11 and the semicontinuous connection of vacuum foam stove 19;
Tundish 6 comprises plumbago crucible I 1, control valve I 3, aluminium alloy melt entrance 4, liquid level observer 5, heating unit I 7, plumbago crucible I 1 is placed in the inside of tundish 6, heating unit I 7 is positioned at the interior of tundish 6, the top of tundish 6 is provided with aluminium alloy melt entrance 4 and liquid level observer 5, and aluminium alloy melt entrance 4 places are provided with control valve I 3;
Initial pore generation device 11 comprises ventpipe 10, heating unit II 12, porous swivel nozzle 13, plumbago crucible II 14, control valve II 15, spout 16, ventpipe 10 is positioned at the inside of initial pore generation device 11, the place, air outlet of ventpipe 10 is provided with porous swivel nozzle 13, plumbago crucible II 14 is placed in the inside of initial pore generation device 11, heating unit II 12 is positioned at the interior of initial pore generation device 11, the lower end of initial pore generation device 11 is provided with spout 16, and spout 16 places are provided with control valve II 15;
Vacuum foam stove 19 comprises movable pulley 17, heating unit III 18, vacuum extractor 20, Stainless Steel Crucible 21, and the bottom of vacuum foam stove 19 is provided with movable pulley 17, and Stainless Steel Crucible 21 is positioned at the inside of vacuum foam stove 19; Vacuum extractor 20 is positioned at the top of vacuum foam stove 19 and the sidewall of vacuum foam stove 19 is tightly connected.
With semicontinuous vacuum foam device described in the present embodiment, prepare foamed aluminium, specifically comprise the following steps:
By the ZL301 alloy melt melt temperature of tackify, it is 650 ℃, including granularity is that 21 ~ 30 μ m, add-on are SiC particle introducing tundish 6 and the initial pore generation device 11 of alloy melt quality 5%, and keeping liquid level is 3/5 of tundish 6 and initial pore generation device 11 height; To passing into air intake in the melt in initial pore generation device 11, be 18% of alloy melt volume, by porous swivel nozzle 13, in melt, produce the initial pore of aperture 0.05 ~ 0.13mm; Vacuum foam stove 19 moves to initial pore generation device 11 head piece 16 places and connects material after being preheating to 650 ℃, remove and vacuumize foaming after connecting material, and vacuum tightness is that 5Pa, foamed time are 15s; After vacuum foam finishes, melt foam is cooled and solidified under vacuum, obtains porosity 80%, the foamed aluminium that aperture is 2.0 ~ 3.5mm.
Claims (6)
1. the semicontinuous vacuum foam device of a foamed aluminium, it is characterized in that: this device comprises tundish (6), initial pore generation device (11), vacuum foam stove (19), tundish (6) and initial pore generation device (11) seamless link, initial pore generation device (11) and the semicontinuous connection of vacuum foam stove (19);
Tundish (6) comprises plumbago crucible I (1), control valve I (3), aluminium alloy melt entrance (4), liquid level observer (5), heating unit I (7), plumbago crucible I (1) is placed in the inside of tundish (6), heating unit I (7) is positioned at the interior of tundish (6), the top of tundish (6) is provided with aluminium alloy melt entrance (4) and liquid level observer (5), and aluminium alloy melt entrance (4) locates to be provided with control valve I (3);
Initial pore generation device (11) comprises ventpipe (10), heating unit II (12), porous swivel nozzle (13), plumbago crucible II (14), control valve II (15), spout (16), ventpipe (10) is positioned at the inside of initial pore generation device (11), the place, air outlet of ventpipe (10) is provided with porous swivel nozzle (13), plumbago crucible II (14) is placed in the inside of initial pore generation device (11), heating unit II (12) is positioned at the interior of initial pore generation device (11), the lower end of initial pore generation device (11) is provided with spout (16), spout (16) locates to be provided with control valve II (15),
Vacuum foam stove (19) comprises heating unit III (18), vacuum extractor (20), Stainless Steel Crucible (21), and Stainless Steel Crucible (21) is positioned at the inside of vacuum foam stove (19); Vacuum extractor (20) is positioned at the top of vacuum foam stove (19) and the sidewall of vacuum foam stove (19) is tightly connected.
2. the semicontinuous vacuum foam device of foamed aluminium according to claim 1, it is characterized in that: the melt liquid level height in described tundish (6) and initial pore generation device (11) is consistent, liquid level is the 1/2-2/3 of tundish (6) and initial pore generation device (11) height.
3. the semicontinuous vacuum foam device of foamed aluminium according to claim 1, is characterized in that: described tundish (6) and initial pore generation device (11) are by communicating pipe (8) seamless link.
4. the semicontinuous vacuum foam device of foamed aluminium according to claim 1, is characterized in that: between described initial pore generation device (11) and vacuum foam stove (19) by head piece (16) and the semicontinuous connection of control valve (15).
5. the semicontinuous vacuum foam device of foamed aluminium according to claim 1, is characterized in that: movable pulley (17) is equipped with in vacuum foam stove (19) bottom.
6. the semicontinuous vacuum foam device of foamed aluminium according to claim 1, is characterized in that: the outside of described Stainless Steel Crucible (21) is provided with water-in (23), water outlet (24), water-cooled tube (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365057.7U CN203923345U (en) | 2014-07-03 | 2014-07-03 | A kind of semicontinuous vacuum foam device of foamed aluminium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365057.7U CN203923345U (en) | 2014-07-03 | 2014-07-03 | A kind of semicontinuous vacuum foam device of foamed aluminium |
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| CN203923345U true CN203923345U (en) | 2014-11-05 |
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| CN201420365057.7U Expired - Fee Related CN203923345U (en) | 2014-07-03 | 2014-07-03 | A kind of semicontinuous vacuum foam device of foamed aluminium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120295A (en) * | 2014-07-03 | 2014-10-29 | 昆明理工大学 | Foamed aluminum semi continuous vacuum foaming device and method |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120295A (en) * | 2014-07-03 | 2014-10-29 | 昆明理工大学 | Foamed aluminum semi continuous vacuum foaming device and method |
| CN104120295B (en) * | 2014-07-03 | 2016-01-20 | 昆明理工大学 | A kind of semicontinuous vacuum foam apparatus and method of foamed aluminium |
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Granted publication date: 20141105 Termination date: 20150703 |
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