CN208898969U - The smelting apparatus of aluminum matrix composite - Google Patents
The smelting apparatus of aluminum matrix composite Download PDFInfo
- Publication number
- CN208898969U CN208898969U CN201821551347.5U CN201821551347U CN208898969U CN 208898969 U CN208898969 U CN 208898969U CN 201821551347 U CN201821551347 U CN 201821551347U CN 208898969 U CN208898969 U CN 208898969U
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- crucible
- cast hopper
- hopper
- smelting apparatus
- matrix composite
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 60
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000003723 Smelting Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 26
- 239000011159 matrix material Substances 0.000 title claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 25
- 230000002708 enhancing effect Effects 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000000926 separation method Methods 0.000 claims description 21
- 238000005086 pumping Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 38
- 238000002156 mixing Methods 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 7
- 239000008187 granular material Substances 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 238000005054 agglomeration Methods 0.000 abstract description 3
- 230000002776 aggregation Effects 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 description 24
- 238000002844 melting Methods 0.000 description 12
- 230000008018 melting Effects 0.000 description 11
- 239000000243 solution Substances 0.000 description 10
- 238000005266 casting Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052756 noble gas Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 241000722270 Regulus Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229910052571 earthenware Inorganic materials 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000001540 jet deposition Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009715 pressure infiltration Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model provides a kind of smelting apparatus of aluminum matrix composite, is related to material forming field.It include: crucible, feeding device, agitating device and heating system, the feeding device includes the first cast hopper and the second cast hopper, the connects with the internal cavities of the bottom end of first cast hopper and the second cast hopper and the crucible, the lower end position of second cast hopper is equipped with electromagnetic impulse valve, and the bottom end of second cast hopper is equipped with spiral nozzle in crucible；Wherein the first cast hopper is the hopper for launching base aluminum, and second cast hopper is the hopper for launching enhancing particle.The dosing method of enhancing particle use electromagnetic impulse valve control interval add with spiral nozzle compound action, reached a small amount of, repeatedly, be more advantageous to being uniformly distributed and mixing for powder granule, reduce powder granule agglomeration.
Description
Technical field
The utility model relates to material forming fields, and in particular to a kind of smelting apparatus of aluminum matrix composite.
Background technique
Particle enhanced aluminum-based composite material has high specific strength and specific stiffness, excellent wear-resisting property, low thermal coefficient of expansion, low
The excellent mechanical properties such as density, good dimensional stability and thermal conductivity, can be widely applied to space flight and aviation, military affairs, automobile,
The fields such as electronics, sports.
The preparation method of particle enhanced aluminum-based composite material mainly includes powder metallurgic method, pressure infiltration method, jet deposition
Method and stirring casting method.Compared to other methods, mechanical stirring casting has equipment, simple process, easy to operate, at low cost
The advantages that, it is the most efficient method of large-scale production.
But during the existing Preparation of Particle Reinforced Aluminum Based Composite Material by Casting Process by mechanical stirring, important step
It suddenly is exactly melting, existing smelting equipment is difficult that particle will be enhanced in fusion process to be uniformly distributed in aluminum substrate, is affected
The mechanical property and physical property of particle enhanced aluminum-based composite material.
Existing stirring casting method, device structure is not compact, and continuous production degree is low, to reduce production efficiency.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of smelting apparatus of aluminum matrix composite, solves
Existing smelting equipment is difficult that particle will be enhanced in fusion process to be uniformly distributed in aluminum substrate.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs:
A kind of smelting apparatus of aluminum matrix composite, comprising:
Crucible, the upper end of the crucible are equipped with cover board, and the bottom of the crucible is equipped with discharge orifice, and the crucible side is set
There is the vacuum orifice connecting with vaccum-pumping equipment；
Feeding device, the feeding device include the first cast hopper and the second cast hopper, first cast hopper and second
The lower end position of the connects with the internal cavities of the bottom end of cast hopper and the crucible, second cast hopper is equipped with electromagnetic impulse valve,
The bottom end of second cast hopper is equipped with spiral nozzle in crucible；Wherein the first cast hopper is the hopper for launching base aluminum, institute
Stating the second cast hopper is the hopper for launching enhancing particle；
Agitating device, the agitating device can be stirred the material in the crucible；
Heating system, the heating system heat crucible.
Preferably, the smelting apparatus further includes the water conservancy diversion separation sleeve for being located at the crucible internal cavities, the water conservancy diversion every
From the outside that the agitating device is circumferentially arranged in set, and the upper and lower ends of the water conservancy diversion separation sleeve are set as being open；
The water conservancy diversion separation sleeve side wall is equipped with deflector hole.
Preferably, the crucible bottom is equipped with elliptic arc sunk structure.
Preferably, the heating system includes calandria, and the calandria is distributed in the outside portion of the crucible.
Preferably, the outside of the calandria is equipped with insulating layer.
Preferably, the agitating device includes:
Agitating shaft, the agitating shaft are located at the center of the crucible, and the lateral wall of the agitating shaft is equipped with agitating paddle
Leaf；
Driving motor, the driving motor drive the agitating shaft rotation.
Preferably, the upper end of first cast hopper and the second cast hopper is detachably equipped with sealing cover, and described first
The sidewall upper part of cast hopper and the second cast hopper is provided with the first air inlet.
Preferably, the second air inlet is provided on the cover board.
Preferably, the upper end of the crucible side is equipped with high point slag-drip opening.
(3) beneficial effect
The utility model provides a kind of smelting apparatus of aluminum matrix composite.Have it is following the utility model has the advantages that
1, the smelting apparatus of the utility model, the dosing method for enhancing particle use electromagnetic impulse valve control interval and add
With spiral nozzle compound action, reaches a small amount of, multiple, be more advantageous to being uniformly distributed and mixing for powder granule, reduce powder
Particle agglomeration phenomenon.
2, the smelting apparatus of the utility model is provided with water conservancy diversion separation sleeve in inside, and matrix aluminium is from water conservancy diversion separation sleeve
Outer layer annular space is added, and after melting, starts agitating paddle, forms internal circulation, and molten aluminum and enhancing powder granule formation flush type+stir
The polymorphic mixed mode for mixing shearing+turbulent flow alternating expression, has reached better mixed effect.Using isolation flow guide sleeve, promote
At molten, refining integration, achieve the effect that the purification and impurity removal of melting separation, after starting stirring slurry circulation, the drosses such as oxide
It is trapped on the outside of annular space by water conservancy diversion separation sleeve, is then excluded by mud hole.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the overall structure cross-sectional view of the smelting apparatus of the utility model embodiment aluminum matrix composite；
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Fig. 3 is the crucible overall structure cross-sectional view of the utility model embodiment.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Since the ratio table of enhancing particle can be larger, easily reunite, and with the reasons such as the wetability of aluminum substrate is poor, cause to increase
Strong particle is difficult to be uniformly distributed in aluminum substrate, is easy to produce serious stress concentration phenomenon, affects enhancing aluminum-base composite material
The mechanical property and physical property of material, to make its application range by larger limitation.
Melting is to prepare the important step of reinforced aluminum matrix composites, may result in casting production during stir-melting
Raw a series of defect, such as stomata, be mingled with and aoxidize.Therefore, enhancing even particulate dispersion degree and Melting Quality how are improved,
And it reduces the porosity and always is that micro-nano particle reinforced needs the problem of thinking deeply in actual production.Such as
Fruit smelting technology cannot be promoted, and the performance of micro-nano particle reinforced will be restricted.
And existing stirring casting method, device structure is not compact, and continuous production degree is low, to reduce production effect
Rate.
The utility model provides a kind of smelting apparatus of aluminum matrix composite to solve the above-mentioned problems, such as the institute of Fig. 1~2
Show, comprising:
Crucible 100, the upper end of the crucible 100 are equipped with cover board 103, are provided in specific implementation process cover plate 103
The upper end of crucible 100 is arranged in using bolt hole 1031 described in bolt-through by bolt hole 1031 for cover board 103；The crucible
100 bottom is equipped with discharge orifice 104, and 100 side of crucible is equipped with the vacuum orifice 105 connecting with vaccum-pumping equipment；Specifically
The internal cavities of crucible 100 are vacuumized after vacuum orifice 105 is connect with vaccum-pumping equipment in implementation process；It also sets simultaneously
Discharge orifice valve 107 has been set, the start or stop of discharge orifice 104 is controlled.
Feeding device, the feeding device include the first cast hopper 300 and the second cast hopper 400, first cast hopper
300 and second cast hopper 400 the not described crucible 100 in bottom end connects with the internal cavities, second cast hopper 400 lower end position
Electromagnetic impulse valve 401 is installed, the bottom end of second cast hopper 400 is equipped with spiral nozzle 402 in crucible 100；Wherein
One cast hopper 300 is the hopper for launching base aluminum, and second cast hopper 400 is the hopper for launching enhancing particle；Specific implementation
The dispensing of material for convenience in the process, the first cast hopper 300 and the second cast hopper 400 are arranged on cover board 103, and is covering
First through hole 303 and the second through-hole 403 are provided on plate 103, the first through hole is run through in 300 bottom end of the first cast hopper
303 with the internal cavities of the crucible 100 together with second through-hole 403 and institute are run through in the bottom end of second cast hopper 400
State the internal cavities of crucible 100 together with.The control that wherein matrix aluminum material in the first cast hopper 300 is launched for convenience,
The lower end of first cast hopper 300 is provided with the first hopper valve 301, launches to control dispensing speed and the start or stop of material.
The bottom of crucible 100 is equipped with 104 structure of discharge orifice, and proportionner can achieve the purpose that continuous production, from
And improve production efficiency.
Agitating device, the agitating device can be stirred the material in the crucible 100；
Heating system, the heating system heat crucible 100.
Matrix aluminium is put into hopper by above-described embodiment in detailed process, is then controlled by the first hopper valve 301
Matrix aluminium is added directly into crucible 100 melting that heats up by system, and temperature control is according to the metal melting temperature being actually added into
Determine, general control overheats 50~100 DEG C.Temperature-rise period is slow, and point two to three stages carry out.Such as, in specific implementation process
It can be that the first stage is gradually warmed up to 300 DEG C of progress isothermal holdings from 0 DEG C, second stage is gradually warmed up from 300 DEG C to 500
DEG C isothermal holding is carried out, the phase III is warming up to overtemperature, maintains temperature plateau.
After molten aluminum melts completely, starts agitating device, 100 temperature of crucible is risen to 50~100 DEG C of overheat or so, simultaneously
It opens vaccum-pumping equipment to vacuumize crucible 100, the molten aluminum after melting maintains temperature overheating by the stirring of agitating device
50~100 DEG C constant.Processed enhancing particle will be infiltrated and be added to the second cast hopper 400, by electromagnetic impulse valve 401,
It has a rest and adds enhancing particle, spiral nozzle 402 is sprayed particle is enhanced into molten aluminum in launch process.Enhance the dosing method of particle
Using electromagnetic impulse valve control interval add with spiral nozzle compound action, reached a small amount of, repeatedly, be more advantageous to particle
It is uniformly distributed and mixes, reduce powder granule agglomeration.Discharge orifice 104 is opened after completing, and melt discharge is carried out next
Step operation, such as casting, extruding, cast molding.
In the specific implementation process, in order to improve the uniformity being stirred, the smelting apparatus further include be located at it is described
The agitating device is circumferentially arranged in the water conservancy diversion separation sleeve 500 of 100 internal cavities of crucible, the water conservancy diversion separation sleeve 500
Outside, and the upper and lower ends of the water conservancy diversion separation sleeve 500 are set as being open；
500 side wall of water conservancy diversion separation sleeve is equipped with deflector hole 501.
It is connect by bracket with the bottom of water conservancy diversion separation sleeve 500 when specific implementation process and is fixed on water conservancy diversion separation sleeve 500
Inside crucible 100, agitating device is located at the cylinder-shaped water conservancy diversion separation sleeve 500 of upper and lower opening, and due to the water conservancy diversion separation sleeve
500 side walls are equipped with deflector hole 501, and after agitating device starting, the molten aluminum and enhancing particle of the crucible 100 are isolated by water conservancy diversion
Set 500 upper and lower opening and deflector hole 501 formed circulation, molten aluminum and enhancing particle formed flush type+stirring it is shearing+turbulent flow
The polymorphic mixed mode of alternating expression, has reached better mixed effect.
In specific implementation process, in order to increase molten aluminum and enhance the effect of internal particle circulation, as shown in figure 3, the crucible
Elliptic arc sunk structure 108 is arranged at 100 bottoms.When it is implemented, wherein discharge orifice 104 is located at the center of 100 bottom of crucible,
Surrounding is provided with elliptic arc sunk structure 108 on the basis of discharge orifice 104, the elliptic arc sunk structure 108 is with discharge orifice 104
Side wall with crucible 100 is high point, to the lower concave end of crucible 100.
This 108 one side of elliptic arc sunk structure can promote to circulate due to molten aluminum and enhancing particle circulation, another
Aspect circulates under process regulus is understood under the effect of gravity and falls on the bottom of elliptic arc sunk structure 108, to not influence
Molten aluminum is mixed with enhancing particle.
Crucible bottom is equipped with elliptic arc sunk structure 108, is conducive to melt and recycles without the inside at dead angle, reaches full and uniform
In addition mixed purpose also plays the role of settling impurity.
In specific implementation process, the outside portion of the crucible 100 is provided with calandria 101.When it is implemented, calandria
101 are evenly distributed on the outside portion of crucible 100, heat more uniform.
In specific implementation process, the outside of the calandria 101 is equipped with insulating layer 102.
In specific implementation process, the agitating device includes:
Agitating shaft 200, the agitating shaft 200 are located at the center of the crucible 100, the outside of the agitating shaft 200
Wall is equipped with stirrer paddle 202；When it is implemented, when setting is equipped with water conservancy diversion separation sleeve 500, agitating shaft 200 and stirring here
Blade 202 is respectively positioned on inside water conservancy diversion separation sleeve 500.
Driving motor 201, the driving motor 201 drive the agitating shaft 200 to rotate.In order to enable structure is more compact
Driving motor 201 is arranged on cover board 103, and is provided with shaft hole 202 on cover board 103, is equipped with outside the cover board 103 cold
But the one end of sealing shroud, agitating shaft 200 is connect with driving motor 201, and the other end extends to earthenware through the shaft hole 202
Inside crucible 100.
Furthermore in specific implementation, it also can use other agitating devices, such as magnetic agitation.
In specific implementation process, the upper end of first cast hopper 300 and the second cast hopper 400 is detachably equipped with sealing
Lid 601, and the sidewall upper part of first cast hopper 300 and the second cast hopper 400 is provided with the first air inlet 600.
In the specific implementation, lead to inert gas into hopper by the first air inlet 600, and keep slight positive pressure state.
In specific implementation process, the second air inlet 1033 is provided on the cover board 103.
Above-described embodiment the first air inlet 600 and the second air inlet 1033 are for logical inert gas, inert gas
Effect is on the one hand to the air being discharged in the first cast hopper 300, the second cast hopper 400,100 inside of crucible and material,
Secondly it combines to vacuumize and forms vacuum and negative pressure in crucible 100 to reduce the probability that stomata occurs in mixing in material.
In specific implementation process, it is additionally provided with peep-hole 1032 on the cover board 103, convenient for observation crucible 100 in real time
Interior situation.
In specific implementation process, the 100 upper end side of crucible is equipped with high point slag-drip opening 106, after stopping stirring, opens
The capping of high point mud hole 106 carries out deslagging again, and dross is drained into inder pot by way of gravity drainage.For operating easily, will
Slag-drip opening is set as the capping of buckle-type end face.
In order to further illustrate the smelting apparatus of the offer of the present embodiment, composite material is prepared by above-mentioned smelting apparatus,
Choose traditional smelting equipment as a comparison case:
Embodiment 1:
S1: base aluminum is thrown in the cavity inside crucible 100 by the first cast hopper 300；
S2: opening heating system, heat to crucible 100, dissolves base aluminum；
S3: after base aluminum melts completely, start agitating device, initial stirring rates 30r/min, after in 800r/min
Continue to stir；
S4: 100 temperature of crucible is risen into 50 DEG C or so of overheat, the cavity inside crucible 100 is vacuumized；It is described
Continue to stir in vacuum
S5: the molten aluminum after melting carries out internal circulation, 50 DEG C of temperature overheating of maintenance is constant by stirring；Hold time for
1h。
S6: opening the electromagnetic impulse valve 401 of the lower end position of the second cast hopper 400, will enhancing by spiral nozzle 402
The injection that intergranular is had a rest is thrown in molten aluminum, continues to stir；
S7: alloy molten solution after mixing, closes the solenoid valve that feeds intake, and is passed through noble gas, closes agitating device and vacuum pump, beats
Begin to rehearse discharge hole 104, and melt is discharged.
Embodiment 2:
S1: base aluminum is thrown in the cavity inside crucible 100 by the first cast hopper 300；
S2: opening heating system, heat to crucible 100, dissolves base aluminum；
S3: after base aluminum melts completely, start agitating device, initial stirring rates 400r/min, after in 900r/
Min continues to stir；
S4: 100 temperature of crucible is risen into 100 DEG C or so of overheat, the cavity inside crucible 100 is vacuumized；Institute
It states and continues to stir in vacuum
S5: the molten aluminum after melting carries out internal circulation, 100 DEG C of temperature overheating of maintenance is constant by stirring；Hold time for
1.5h。
S6: opening the electromagnetic impulse valve 401 of the lower end position of the second cast hopper 400, will enhancing by spiral nozzle 402
The injection that intergranular is had a rest is thrown in molten aluminum, continues to stir；
S7: alloy molten solution after mixing, closes the solenoid valve that feeds intake, and is passed through noble gas, closes agitating device and vacuum pump, beats
Begin to rehearse discharge hole 104, and melt is discharged.
Embodiment 3:
S1: base aluminum is thrown in the cavity inside crucible 100 by the first cast hopper 300；
S2: opening heating system, heat to crucible 100, dissolves base aluminum；
S3: after base aluminum melts completely, start agitating device, initial stirring rates 350r/min, after in 850r/
Min continues to stir；
S4: 100 temperature of crucible is risen into 70 DEG C or so of overheat, the cavity inside crucible 100 is vacuumized；It is described
Continue to stir in vacuum
S5: the molten aluminum after melting carries out internal circulation, 80 DEG C of temperature overheating of maintenance is constant by stirring；Hold time for
1.2h。
S6: opening the electromagnetic impulse valve 401 of the lower end position of the second cast hopper 400, will enhancing by spiral nozzle 402
The injection that intergranular is had a rest is thrown in molten aluminum, continues to stir；
S7: alloy molten solution after mixing, closes the solenoid valve that feeds intake, is passed through noble gas.Agitating device and vacuum pump are closed, is beaten
Begin to rehearse discharge hole 104, and melt is discharged.
It has chosen traditional smelting equipment as a comparison case, and prepared by above-described embodiment 1~3 and comparative example compound
The mechanical performance of aluminum material checked, specific detection method are as follows:
Slow rate tension test is referring especially to GB/T 15970.7-2000 " the corrosion stress corrosion test of metal and alloy
7th part: slow strain rate test ", HB 7235-1995 " slow-drawing stress corrosion test method ", GB/T
The standards such as 15970.1-1995 " the corrosion stress corrosion test part 1 test method general provisions of metal and alloy " execute.Sampling
When, the length direction of sample along raw material the direction of extrusion, width direction perpendicular to raw material the direction of extrusion, with a thickness of the original of plate
Beginning thickness.The sample processed need to be polished smooth by 320#, 800#, 1000#, 1500#, 2000# sand paper, guarantee specimen surface
Inorganic cutter trade and obvious scratch, it is stand-by with alcohol washes specimen surface.Corrosive medium uses 25 DEG C of room temperature of 3.5%NaCl
Solution, inert media select silicone oil, strain rate 10-6s-1。
The test of constant load tensile stress etching referring especially to HB5254-1983, " test by wrought aluminium alloy tensile stress etching
Method " it carries out, using the sample with slow strain rate tension same size.
Testing result is as shown in the table:
It can be obtained by above-mentioned data, the present invention implements the composite material of 1~3 preparation in tensile strength, elongation percentage, disconnected
It splits duration and all shows significant advantage compared with comparative example.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (9)
1. a kind of smelting apparatus of aluminum matrix composite characterized by comprising
The upper end of crucible (100), the crucible (100) is equipped with cover board (103), and the bottom of the crucible is equipped with discharge orifice
(104), crucible (100) side is equipped with the vacuum orifice (105) connecting with vaccum-pumping equipment；
Feeding device, the feeding device include the first cast hopper (300) and the second cast hopper (400), first cast hopper
(300) and the connects with the internal cavities of the bottom end of the second cast hopper (400) and the crucible (100), second cast hopper (400)
Lower end position be equipped with electromagnetic impulse valve (401), the bottom end of second cast hopper (400) is equipped with spiral in crucible (100)
Nozzle (402)；Wherein the first cast hopper (300) is the hopper for launching base aluminum, and second cast hopper (400) is to launch enhancing
The hopper of particle；
Agitating device, the agitating device can be stirred the material in the crucible (100)；
Heating system, the heating system heat crucible (100).
2. the smelting apparatus of aluminum matrix composite as described in claim 1, which is characterized in that the smelting apparatus further includes setting
In the water conservancy diversion separation sleeve (500) of the crucible (100) internal cavities, institute is circumferentially arranged in the water conservancy diversion separation sleeve (500)
The outside of agitating device is stated, and the upper and lower ends of the water conservancy diversion separation sleeve (500) are set as being open；
Water conservancy diversion separation sleeve (500) side wall is equipped with deflector hole (501).
3. the smelting apparatus of aluminum matrix composite as described in claim 1, which is characterized in that crucible (100) bottom is set
There are elliptic arc sunk structure (108).
4. the smelting apparatus of aluminum matrix composite as described in claim 1, which is characterized in that the heating system includes heating
Body (101), the calandria (101) are distributed in the outside portion of the crucible (100).
5. the smelting apparatus of aluminum matrix composite as claimed in claim 4, which is characterized in that outside the calandria (101)
Portion is equipped with insulating layer (102).
6. the smelting apparatus of aluminum matrix composite as described in claim 1, which is characterized in that the agitating device includes:
Agitating shaft (200), the agitating shaft (200) are located at the center of the crucible (100), the agitating shaft (200)
Lateral wall is equipped with stirrer paddle (202)；
Driving motor (201), the driving motor (201) drive agitating shaft (200) rotation.
7. the smelting apparatus of aluminum matrix composite as described in claim 1, which is characterized in that first cast hopper (300)
Sealing cover (601) detachably are equipped with the upper end of the second cast hopper (400), and first cast hopper (300) and second is thrown
The sidewall upper part of hopper (400) is provided with the first air inlet (600).
8. the smelting apparatus of aluminum matrix composite as described in claim 1, which is characterized in that be arranged on the cover board (103)
There are the second air inlet (1033).
9. the smelting apparatus of aluminum matrix composite as described in claim 1, which is characterized in that crucible (100) upper end side
Portion is equipped with high point slag-drip opening (106).
Priority Applications (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913933A (en) * | 2018-09-21 | 2018-11-30 | 湘潭金波新材料科技有限公司 | The smelting apparatus and method of smelting of aluminum matrix composite |
| CN110273074A (en) * | 2019-06-14 | 2019-09-24 | 慧隆(厦门)石墨烯科技有限公司 | A kind of modification aluminium process units |
| CN111483055A (en) * | 2020-03-11 | 2020-08-04 | 安吉龙港混凝土制品有限公司 | New process and equipment for manufacturing anti-cracking and anti-permeability concrete |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913933A (en) * | 2018-09-21 | 2018-11-30 | 湘潭金波新材料科技有限公司 | The smelting apparatus and method of smelting of aluminum matrix composite |
| CN110273074A (en) * | 2019-06-14 | 2019-09-24 | 慧隆(厦门)石墨烯科技有限公司 | A kind of modification aluminium process units |
| CN111483055A (en) * | 2020-03-11 | 2020-08-04 | 安吉龙港混凝土制品有限公司 | New process and equipment for manufacturing anti-cracking and anti-permeability concrete |
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