CN107214309A - It is a kind of to improve the method for silumin structure property - Google Patents
It is a kind of to improve the method for silumin structure property Download PDFInfo
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- CN107214309A CN107214309A CN201710347826.9A CN201710347826A CN107214309A CN 107214309 A CN107214309 A CN 107214309A CN 201710347826 A CN201710347826 A CN 201710347826A CN 107214309 A CN107214309 A CN 107214309A
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- silumin
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- silicon
- primary silicon
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- 229910000551 Silumin Inorganic materials 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 35
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 68
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000010703 silicon Substances 0.000 claims abstract description 66
- 238000003756 stirring Methods 0.000 claims abstract description 58
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 33
- 239000000956 alloy Substances 0.000 claims abstract description 33
- 238000013461 design Methods 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000010439 graphite Substances 0.000 claims abstract description 19
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 19
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims description 11
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000005496 eutectics Effects 0.000 abstract description 24
- 229910018125 Al-Si Inorganic materials 0.000 abstract description 15
- 229910018520 Al—Si Inorganic materials 0.000 abstract description 15
- 239000011159 matrix material Substances 0.000 abstract description 5
- 238000004220 aggregation Methods 0.000 abstract description 4
- 230000002776 aggregation Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 4
- 229910000676 Si alloy Inorganic materials 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 15
- 210000001519 tissue Anatomy 0.000 description 7
- 229910052571 earthenware Inorganic materials 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000010183 spectrum analysis Methods 0.000 description 5
- 229910000632 Alusil Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 210000001787 dendrite Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002389 environmental scanning electron microscopy Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000009718 spray deposition Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
Abstract
Improve the method for silumin structure property the invention discloses a kind of, comprise the following steps：Take silumin, graphite crucible is put into be placed in shaft furnace, set and heated up after heating rate and design temperature, reach and be incubated after design temperature, then graphite crucible is taken out, is put into low frequency magnetic field coil, electromagnetism, mechanical couplings stirring are carried out under heat-retaining condition, stirring is cast after terminating, and is cooled to room temperature.A kind of method for improvement silumin structure property that the present invention is provided, can be effectively improved the size and pattern of primary silicon, lift silumin structure property.The primary silicon size for causing gained alloy using the method for the present invention diminishes, and shape becomes round and smooth, while not producing aggregation；The tissue of Eutectic Silicon in Al-Si Cast Alloys is changed into vermiform or point-like from needle-like.Solve thick primary silicon and wedge angle primary silicon alloy structure is produced and isolate, the mechanical property of serious shadow alloy；The problems such as continuity of primary silicon aggregation influence matrix performance.
Description
Technical field
Improve the method for silumin structure property the present invention relates to a kind of, particularly belong to alloy manufacturing technology field.
Background technology
For silumin, with the increase of silicone content, Eutectic Silicon in Al-Si Cast Alloys and primary silicon tissue is caused to become more overstriking
Greatly, so material plasticity toughness reduction, fragility enhancing, bigger difficulty is caused to machine-shaping.Therefore, using suitable casting
Make mode, reduce the size and reasonable layout of primary silicon, so that final produce can meet the silumin of industrial requirement.
The preparation technology of silumin mainly includes fusion casting, prior powder metallurgy, spray deposition etc..Traditional forging type institute
The typical microscopic structure of silumin of preparation is block primary silicon and eutectic structure (α-Al+ eutectic Si), eutectic structure
In Si be in needle-like, and primary silicon is then thick bulk or lath-shaped.With the rise of silicone content, the content of primary silicon is also got over
Height, becomes also thicker, isolates that ability is also increasing to matrix, and stress collection is produced in the corner angle and sharp parts of silicon phase
In so that the mechanical property of alloy especially elongation percentage produces obvious reduction, machinability variation, fragility increase, it is impossible to meet
Performance requirement of the electronic package material to alusil alloy.The method of refinement primary silicon mainly has：(1) Metamorphism treatment；(2) fast rapid hardening
Gu.For hypereutectic high-seleium aluminium alloy, the size of primary silicon is tiny in its alusil alloy, then the synthesis of alusil alloy
Mechanical property is better.Therefore, a kind of size of reduction primary silicon is studied, the method for lifting silumin structure property seems outstanding
For necessity.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide a kind of improvement silumin structure property
Method, can be effectively improved the size and pattern of primary silicon, lift silumin structure property.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
It is a kind of to improve the method for silumin structure property, comprise the following steps：Silumin is taken, graphite earthenware is put into
Crucible is placed in shaft furnace, is set and is heated up after heating rate and design temperature, reaches held for some time after design temperature, then
Graphite crucible is taken out, is put into low frequency magnetic field coil, electromagnetism, mechanical couplings stirring are carried out under heat-retaining condition, stirring terminates
Casting, is cooled to room temperature.
It is foregoing improve silumin structure property method in, silumin be silicon mass fraction be 20% conjunction
Gold.Silumin used herein belongs to silumin (hypereutectic), and monocrystalline silicon has good wearability.
In the foregoing method for improving silumin structure property, the magnetic field intensity of low frequency magnetic field for 12000~
15000AT。
In the foregoing method for improving silumin structure property, heating rate is 10 DEG C/min~15 DEG C/min.
In the foregoing method for improving silumin structure property, design temperature is 760 DEG C~800 DEG C.
In the foregoing method for improving silumin structure property, insulation 25min~40min after design temperature is reached.
In the foregoing method for improving silumin structure property, when a length of 5~15min of stirring.
In the foregoing method for improving silumin structure property, ceramic stirring rod is preheated at 600 DEG C~700 DEG C
15min。
In the foregoing method for improving silumin structure property, churned mechanically frequency in electromagnetism, mechanical couplings stirring
For 2~3Hz.
In order to ensure technical solution of the present invention science, rationally, effectively, inventor has carried out a series of experiments checking.
1st, experiment material and equipment
1.1st, experiment material
The experiment raw material selected are tested in this melting：W (Si)=20% silumin, shear at high temperature ceramic rod
(diameter d=10mm).Wherein w (Si)=20% silumin chemical composition is as shown in table 1.
Table 1w (Si)=20% silumin chemical composition (%)
| Si | Cu | Mg | Ni | Mn | Other | Al |
| 20~22 | 1.5~2.5 | 0.4~0.7 | 1~2 | ≤0.10 | ≤0.15 | It is remaining |
1.2nd, experimental facilities
1) tiltable artificial intelligence chamber type electric resistance furnace (shaft furnace)：Remelting is carried out to the aluminium alloy bought；
2) sawing machine：The silumin ingot obtained to remelting carries out preliminary saw piece, produces required part；
3) wire cutting instrument：Aluminium alloy stick obtained by sawing machine is cut into 10mm × 10mm block ingot；
4) X-ray diffractometer
5) light microscope model DM25000M.
6) ESEM
7) aid and reagent：Graphite crucible, ceramic rod, crucible tongs, asbestos gloves, timer, electronic balance, sand
Paper, polishing machine, electrobrightening instrument, select solution polishing fluid (10% perchloric acid), antiscuffing paste (1.5 μm), beaker, ethanol, pliers, hand
Work saw, glue, sample strip, label paper.
1.3rd, the preparation of sample
Silumin is taken, graphite crucible is put into and is placed in shaft furnace, setting heating rate (10 DEG C/min~15 DEG C/
Min) heated up afterwards with design temperature (760 DEG C~800 DEG C), insulation 25min~40min after design temperature is reached, then by graphite
Crucible takes out, and is put into low frequency magnetic field coil (12000~15000AT of magnetic field intensity), (is preheated with after preheating at 600~700 DEG C
Ceramic stirring rod 15min), electromagnetism, mechanical couplings are carried out under heat-retaining condition and stirs 5~15min (churned mechanically frequency is
2~3Hz), stirring terminates casting, is cooled to room temperature.Apply low frequency magnetic field, while being carried out with the ceramic stirring rod after preheating
Mechanical agitation, as coupled stir.
2nd, method of testing
2.1st, microscopic examination：The tissue topography of sample is observed with light microscope DM-2500M and thing distributed mutually is gone forward side by side
Row analysis.
2.2nd, ESEM and energy spectrum analysis：Pass through scanning electron microscopic observation sample topography.Test.Then electron probe is utilized
Energy disperse spectroscopy carries out Surface scan, and its element cloth situation is observed respectively and X-ray energy spectrum is obtained, and completes EDS tests.
3rd, test result
3.1st, microscopic examination
As shown in Fig. 1 (a)；And shown according to related data, the microhardness 1000 of the primary silicon in silumin~
1300HV, considerably beyond 60~100HV of base aluminum.Primary crystal is siliceous hard, it is easy to produce micro- cut, such as Fig. 1 on its surface
(b) shown in.So before electrobrightening is carried out, to add the program of one of mechanical polishing.During mechanical polishing using woollen cloth and
Constantly added water in antiscuffing paste, polishing process.Electrobrightening is carried out again after specimen surface is visually observed without obvious cut.
Fig. 2 is untreated original structure, from tissue it can be seen that there is the primary silicon of bulk and the Eutectic Silicon in Al-Si Cast Alloys of needle-like.Greatly
Block primary silicon causes silicon skewness in the alloy, influences the performance of alloy.To be smashed during coupled stir
Block primary silicon and the Eutectic Silicon in Al-Si Cast Alloys of needle-like, making primary silicon, it becomes tiny round and smooth, and Eutectic Silicon in Al-Si Cast Alloys is changed into particle or vermiform subtracts
Few performance of isolating to matrix, and then improve the combination property of alloy.The different positions of strand that Fig. 3 is 720 DEG C of coupled stir 5min
The micro-organization chart put：As seen from the figure, identical temperature and mixing time, the microscopic structure in its each portion is the pattern of its primary silicon
Significant difference is not found to the pattern of size and Eutectic Silicon in Al-Si Cast Alloys, that is to say, that coupled stir is very uniform.
In the case of high temperature coupled stir action time identical, from microscopic structure, it is clear that 740
When~800 DEG C, the pattern of primary silicon has beginning by corner angle clearly to being broken as round and smooth shape, and the pattern of primary silicon is also by pin
Shape is changed into vermiform：From 780~800 DEG C again, it can be seen that the shape of primary silicon becomes have a little sharp, so can be preliminary
Think, 780 DEG C of closest optimal coupled stir temperature, i.e., its closest to primary silicon the formation time, as shown in Figure 4.
It is 15min's in mixing time to optimal 780 DEG C of whipping temp obtained by the above-mentioned 10min by the coupled stir time
When verified again, as shown in Figure 5.When mixing time is 15min, can significantly it see, at 780 DEG C, primary silicon
Massive texture seriously broken the primary silicon that even fragmentation is fritter, the acicular constituent of Eutectic Silicon in Al-Si Cast Alloys also improved well.
So, in summary, it may be determined that：780 DEG C of optimal application temperature closest to coupled stir.Coupled stir is being determined most
After good temperature, to continue to determine the optimal application time of coupled stir.At 780 DEG C, the time for applying coupled stir is respectively
When 5min, 10min, 15min, the microscopic structure of sample is as shown in Figure 6.It can be seen that coupled stir 15min primary crystal
Silicon size is obviously reduced；Eutectic Silicon in Al-Si Cast Alloys is also in point-like or vermiform.The change of microstructure time and phase composition pattern, is reduced to matrix
Isolate so that the continuity of alloy microstructure improves, and then improves its combination property.So it was determined that the present invention is set
The Best Times of the coupled stir of meter are 15min.Solid metallic epidermis is not yet formed in metal, moreover it is possible to apply the temperature of coupled stir
In the range of degree, the application time of high temperature coupled stir is longer, to primary silicon to smash effect better.Where it determines that high temperature coupling
It is respectively 15min and 780 DEG C to the Best Times and optimum temperature of silumin action effect to close stirring.
3.2 energy spectrum analysis
Do not stir sample to silumin and carry out energy spectrum analysis, as shown in fig. 7, block is mutually primary silicon, it is thick
Dendrite is α-Al matrixes, and the acicular constituent of upper EDS maps is Eutectic Silicon in Al-Si Cast Alloys, and Eutectic Silicon in Al-Si Cast Alloys and α-Al matrixes have collectively constituted eutectic group
Knit.SEM spot scans are carried out as former state to this, each mutually specific tissue content percentage can be specifically determined, as shown in Figure 7.By point
The energy spectrum analysis figure of surface sweeping is understood, for spectrogram 30, and its content is 100% Si, it may be determined that it complete goes out to be simple
Crystal silicon phase；For spectrogram 31, it is made up of 96% Al, 3.47% C and 0.43% O, so may determine that it is Al bases
Body, minimal amount of C and O are a small amount of casting impurity element；For spectrogram 32, its by 83.29% Si, 11.76% Al,
0.99% O and 3.96% C compositions.May determine that it is Eutectic Silicon in Al-Si Cast Alloys tissue eutectic structure, equally, and C and O are impurity element.
Energy spectrum analysis is carried out to the sample obtained under optimal processing parameter, as a result as shown in Figure 8,9, it should be apparent that 780
DEG C, under 15min coupled stir, the pattern of Eutectic Silicon in Al-Si Cast Alloys is point-like and vermiform, the experiment conclusion before more demonstrating.
4th, conclusion
The shadow that main research and utilization coupled stir of the invention is produced to the structure property of w (Si)=20% silumin
Ring.Experimental result is analyzed, following conclusion has been obtained：
1) a kind of method for improvement silumin structure property that the present invention is provided, can be effectively improved the chi of primary silicon
Very little and pattern, lifts silumin structure property.
2) optimal coupled stir time is 15min in the present invention, to be 780 DEG C (be most to optimal coupled stir temperature
Close to the temperature of primary silicon formation).On this condition so that primary silicon size diminishes, shape becomes round and smooth, the tissue of Eutectic Silicon in Al-Si Cast Alloys
Vermiform or point-like are changed into from needle-like.
The present invention is advantageous in that：A kind of method for improvement silumin structure property that the present invention is provided, energy
The size and pattern of primary silicon are enough effectively improved, silumin structure property is lifted.The method of the present invention is by by high sial
Alloy carries out remelting, and implements the coupled stir of specified temp and specific duration to alloy liquid, may finally improve high sial
Alloy structure performance so that the primary silicon size of gained alloy diminishes, and shape becomes round and smooth, while not producing aggregation；Eutectic Silicon in Al-Si Cast Alloys
Tissue vermiform or point-like are changed into from needle-like.Solve thick primary silicon and wedge angle primary silicon alloy structure is produced and cut
Split, have a strong impact on the mechanical property of alloy；The problems such as continuity of primary silicon aggregation influence matrix performance.
Brief description of the drawings
Fig. 1 is Al-Si alloy phase diagrams and the micro-organization chart of primary silicon of the present invention；
Fig. 2 is thick dendrite, sharp-featured primary silicon and needle shaped eutectic silicon figure；
Fig. 3 is the micro-organization chart of sample at 720 DEG C after coupled stir 5min；
Fig. 4 is the sample micro-organization chart of coupled stir 10min under different temperatures；
Fig. 5 is the sample micro-organization chart of coupled stir 15min under different temperatures；
Fig. 6 is sample micro-organization chart obtained by 780 DEG C of different mixings time；
Fig. 7 is that alusil alloy does not stir sample spot scan energy spectrum diagram；
Fig. 8 is 780 DEG C, stirs 15min sample eutectic structure spot scan energy spectrum diagrams；
Fig. 9 is 780 DEG C, stirs 15min sample primary silicon spot scan energy spectrum diagrams；
The implication of reference in figure：Fig. 1：(a) Al-Si alloy phase diagrams, the microscopic structure of (b) primary silicon；Fig. 2：(a) it is thick
Big dendrite, (b) sharp-featured primary silicon, (c) needle shaped eutectic silicon, primary silicons of the B- with wedge angle, C- needle shaped eutectic silicons；Figure
4：(a) 740 DEG C, 760 DEG C of (b), 780 DEG C of (c), 800 DEG C of (d)；Fig. 5：(a) 740 DEG C, 760 DEG C of (b), 780 DEG C of (c), (d) 800
℃；Fig. 6：(a) 5min, (b) 10min, (c) 15min, A- point-like, vermiform Eutectic Silicon in Al-Si Cast Alloys, the primary silicon that B- is broken.
Embodiment
The present invention is further introduced below in conjunction with specific embodiment.
Embodiment 1
It is a kind of to improve the method for silumin structure property, comprise the following steps：Silumin is taken, graphite earthenware is put into
Crucible is placed in shaft furnace, is set and is heated up after 760 DEG C of 10 DEG C/min of heating rate and design temperature, is reached and is incubated after design temperature
40min, then takes out graphite crucible, is put into low frequency magnetic field coil, and electromagnetism, mechanical couplings stirring are carried out under heat-retaining condition
15min, stirring is cast after terminating, and is cooled to room temperature.Wherein, silumin is the conjunction that the mass fraction of silicon is 20%
Gold.Ceramic stirring rod is that 15min is preheated at 600 DEG C, and the magnetic field intensity of low frequency magnetic field is 12000AT, and churned mechanically frequency is
2Hz。
Embodiment 2
It is a kind of to improve the method for silumin structure property, comprise the following steps：Silumin is taken, graphite earthenware is put into
Crucible is placed in shaft furnace, is set and is heated up after 800 DEG C of 15 DEG C/min of heating rate and design temperature, is reached and is incubated after design temperature
25min, then takes out graphite crucible, is put into low frequency magnetic field coil, and electromagnetism, mechanical couplings stirring are carried out under heat-retaining condition
5min, stirring is cast after terminating, and is cooled to room temperature.Wherein, ceramic stirring rod is that 15min, low-frequency magnetic are preheated at 700 DEG C
The magnetic field intensity of field is 15000AT, and churned mechanically frequency is 3Hz.
Embodiment 3
It is a kind of to improve the method for silumin structure property, comprise the following steps：Silumin is taken, graphite earthenware is put into
Crucible is placed in shaft furnace, is set and is heated up after 780 DEG C of 12 DEG C/min of heating rate and design temperature, is reached and is incubated after design temperature
30min, then takes out graphite crucible, is put into low frequency magnetic field coil, and electromagnetism, mechanical couplings stirring are carried out under heat-retaining condition
15min, stirring is cast after terminating, and is cooled to room temperature.Wherein, silumin is the conjunction that the mass fraction of silicon is 20%
Gold, ceramic stirring rod is that 15min is preheated at 650 DEG C, and the magnetic field intensity of low frequency magnetic field is 13000AT, churned mechanically frequency
For 2.5Hz.
Embodiment 4
It is a kind of to improve the method for silumin structure property, comprise the following steps：Silumin is taken, graphite earthenware is put into
Crucible is placed in shaft furnace, is set and is heated up after 790 DEG C of 14 DEG C/min of heating rate and design temperature, is reached and is incubated after design temperature
22min, then takes out graphite crucible, is put into low frequency magnetic field coil, and electromagnetism, mechanical couplings stirring are carried out under heat-retaining condition
12min, stirring is cast after terminating, and is cooled to room temperature.Wherein, ceramic stirring rod is that 15min, low frequency are preheated at 680 DEG C
The magnetic field intensity in magnetic field is 14000AT, and churned mechanically frequency is 2Hz.
Embodiment 5
It is a kind of to improve the method for silumin structure property, comprise the following steps：Silumin is taken, graphite earthenware is put into
Crucible is placed in shaft furnace, is set and is heated up after 780 DEG C of 11 DEG C/min of heating rate and design temperature, is reached and is incubated after design temperature
35min, then takes out graphite crucible, is put into low frequency magnetic field coil, and electromagnetism, mechanical couplings stirring are carried out under heat-retaining condition
10min, stirring is cast after terminating, and is cooled to room temperature.Wherein, silumin is the conjunction that the mass fraction of silicon is 20%
Gold, ceramic stirring rod is that 15min is preheated at 620 DEG C, and the magnetic field intensity of low frequency magnetic field is 13500AT, churned mechanically frequency
For 3Hz.
Claims (9)
1. a kind of improve the method for silumin structure property, it is characterised in that：Comprise the following steps：Take silumin,
It is put into graphite crucible to be placed in shaft furnace, sets and heated up after heating rate and design temperature, reach and one is incubated after design temperature
Fix time, then take out graphite crucible, be put into low frequency magnetic field coil, electromagnetism, mechanical couplings are carried out under heat-retaining condition and is stirred
Mix, stirring is cast after terminating, and is cooled to room temperature.
2. according to claim 1 improve the method for silumin structure property, it is characterised in that：The high sial is closed
Gold be silicon mass fraction be 20% alloy.
3. according to claim 1 improve the method for silumin structure property, it is characterised in that：The low frequency magnetic field
Magnetic field intensity is 12000~15000AT in coil.
4. according to claim 1 improve the method for silumin structure property, it is characterised in that：The heating rate
For 10 DEG C/min~15 DEG C/min.
5. according to claim 1 improve the method for silumin structure property, it is characterised in that：The design temperature
For 760 DEG C~800 DEG C.
6. according to claim 1 improve the method for silumin structure property, it is characterised in that：Reach design temperature
25min~40min is incubated afterwards.
7. according to claim 1 improve the method for silumin structure property, it is characterised in that：The stirring when
A length of 5~15min.
8. according to claim 1 improve the method for silumin structure property, it is characterised in that：Ceramic stirring rod is
15min is preheated at 600~700 DEG C.
9. according to claim 1 improve the method for silumin structure property, it is characterised in that：The electromagnetism, machine
Churned mechanically frequency is 2~3Hz in tool coupled stir.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723861A (en) * | 2021-01-26 | 2021-04-30 | 大同碳谷科技孵化器有限公司 | Silicon-aluminum composite board and preparation method thereof |
| CN113088960A (en) * | 2021-03-31 | 2021-07-09 | 辽宁石油化工大学 | Titanium alloy flexible package wear-resistant coating and preparation method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808375A (en) * | 1986-09-29 | 1989-02-28 | I. Vsesojuzny Nauchno-Issledovatelsky I Proektny Institut Aljuminievoi, Magnievoi I Elektrodnoi Promyshlennosti | Process for producing aluminium-silicon alloy with content of silicon of 2-22% by mass |
| JPH1129833A (en) * | 1997-07-14 | 1999-02-02 | Toyota Motor Corp | Aluminum alloy composite and its production |
| US20040055735A1 (en) * | 2002-09-25 | 2004-03-25 | Chun Pyo Hong | Method and apparatus for manufacturing semi-solid metallic slurry |
| CN101736226A (en) * | 2009-12-28 | 2010-06-16 | 无锡麟龙铝业有限公司 | Aluminum-silicon-zinc-rare earth-zirconium-containing hot dip coating alloy and method for preparing same |
| CN101787454A (en) * | 2010-04-12 | 2010-07-28 | 中国船舶重工集团公司第十二研究所 | Method for preparing multicomponent reinforced aluminum-base composite material |
| CN104928542A (en) * | 2015-05-19 | 2015-09-23 | 江苏大学 | Preparation method for 6X82-matrix composites for automobile control arms |
| CN105568036A (en) * | 2015-12-30 | 2016-05-11 | 合肥工业大学 | Preparing method of high-silicon aluminum composite material |
| CN105983682A (en) * | 2015-02-04 | 2016-10-05 | 中国科学院金属研究所 | Method for preparing metal matrix composite under compounding effect of low-pressure pulsed magnet field and ultrasound |
| CN106435232A (en) * | 2016-10-13 | 2017-02-22 | 昆明冶金研究院 | Aluminum titanium boron alloy preparation method capable of controlling TiAl3 particle size and particle distribution |
-
2017
- 2017-05-17 CN CN201710347826.9A patent/CN107214309A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808375A (en) * | 1986-09-29 | 1989-02-28 | I. Vsesojuzny Nauchno-Issledovatelsky I Proektny Institut Aljuminievoi, Magnievoi I Elektrodnoi Promyshlennosti | Process for producing aluminium-silicon alloy with content of silicon of 2-22% by mass |
| JPH1129833A (en) * | 1997-07-14 | 1999-02-02 | Toyota Motor Corp | Aluminum alloy composite and its production |
| US20040055735A1 (en) * | 2002-09-25 | 2004-03-25 | Chun Pyo Hong | Method and apparatus for manufacturing semi-solid metallic slurry |
| CN101736226A (en) * | 2009-12-28 | 2010-06-16 | 无锡麟龙铝业有限公司 | Aluminum-silicon-zinc-rare earth-zirconium-containing hot dip coating alloy and method for preparing same |
| CN101787454A (en) * | 2010-04-12 | 2010-07-28 | 中国船舶重工集团公司第十二研究所 | Method for preparing multicomponent reinforced aluminum-base composite material |
| CN105983682A (en) * | 2015-02-04 | 2016-10-05 | 中国科学院金属研究所 | Method for preparing metal matrix composite under compounding effect of low-pressure pulsed magnet field and ultrasound |
| CN104928542A (en) * | 2015-05-19 | 2015-09-23 | 江苏大学 | Preparation method for 6X82-matrix composites for automobile control arms |
| CN105568036A (en) * | 2015-12-30 | 2016-05-11 | 合肥工业大学 | Preparing method of high-silicon aluminum composite material |
| CN106435232A (en) * | 2016-10-13 | 2017-02-22 | 昆明冶金研究院 | Aluminum titanium boron alloy preparation method capable of controlling TiAl3 particle size and particle distribution |
Non-Patent Citations (1)
| Title |
|---|
| 苗龙: "外场对Al-20%Si合金凝固组织的影响", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723861A (en) * | 2021-01-26 | 2021-04-30 | 大同碳谷科技孵化器有限公司 | Silicon-aluminum composite board and preparation method thereof |
| CN113088960A (en) * | 2021-03-31 | 2021-07-09 | 辽宁石油化工大学 | Titanium alloy flexible package wear-resistant coating and preparation method thereof |
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