CN1037013C - Forming method of Al2O3 base casting composite material self-formed from reaction - Google Patents
Forming method of Al2O3 base casting composite material self-formed from reaction Download PDFInfo
- Publication number
- CN1037013C CN1037013C CN94117521A CN94117521A CN1037013C CN 1037013 C CN1037013 C CN 1037013C CN 94117521 A CN94117521 A CN 94117521A CN 94117521 A CN94117521 A CN 94117521A CN 1037013 C CN1037013 C CN 1037013C
- Authority
- CN
- China
- Prior art keywords
- aluminium liquid
- reaction
- composite material
- liquid
- al2o3
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005266 casting Methods 0.000 title claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title abstract description 6
- 229910052593 corundum Inorganic materials 0.000 title abstract 4
- 229910001845 yogo sapphire Inorganic materials 0.000 title abstract 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 36
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000004411 aluminium Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 27
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 5
- 239000008188 pellet Substances 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007872 degassing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract 3
- 229910045601 alloy Inorganic materials 0.000 abstract 3
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 238000009827 uniform distribution Methods 0.000 abstract 2
- 239000011156 metal matrix composite Substances 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 241000209456 Plumbago Species 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910020068 MgAl Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- VHHHONWQHHHLTI-UHFFFAOYSA-N hexachloroethane Chemical compound ClC(Cl)(Cl)C(Cl)(Cl)Cl VHHHONWQHHHLTI-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
The present invention relates to a forming method of Al2O3/Al base casting composite material self-formed from reaction, which belongs to the field of manufacturing metal matrix composite materials. The present invention is characterized in that oxygen is injected into aluminium liquid in a rotary way to react and generate Al2O3 reinforcement phase, the temperature of the aluminium liquid is from 750 to 800 DEG C, the rotary speed of the rotary injection is from 400 to 550 revolutions per minute, the oxygen flow is from 0.08 to 0.16 m<3>/h and increases following the increase of the viscosity of the aluminium liquid, and the injection time is from 20 to 120 minutes and is determined following the content of designed Al2O3. In order to realize the uniform distribution of particles, magnesium of which the weight is 1% of the weight of the aluminium liquid can be added. Compared with a conventional solid-liquid reaction method, the present invention has the advantages of small alloy particles, uniform distribution of the alloy particles, adjustable content of the alloy particles and low energy consumption.
Description
A kind of Al of self-formed from reaction
2O
3The formation method of/Al base casting composite material belongs to casting and uses the Manufacturing Technology of Metal-Based Composites field.
Casting is with metal matrix self-formed from reaction matrix material, and its ceramic enhancement phase such as oxide compound are by chemical reaction nucleation in parent metal, growth and getting.There is good thermodynamic stability at the interface of it and metal carrier body.By the kind of control reactant, kind and the content that temperature and time can be controlled ceramic phase effectively, and particularly importantly it can obtain tiny ceramic particle, and its diameter can reach 1 μ m.People such as Nagaya are added to metal oxide CuO, ZnO in the aluminium liquid, make solid oxide compound and aluminium liquid direct reaction, reaction product Al
2O
3Can strengthen aluminum substrate, the metal that restores is fused in the aluminium liquid as alloy element, has obtained the spontaneous casting composite material (3rd InternatinalSAMP Metals Conference, October 20-22,1992) of solid-liquid phase reaction.P.C.Maity adopts oxide compound TiO
2Made the solid spontaneous TiO of a liquid phase reaction too
2/ Al base casting composite material (Scripta, Metallurgiea et Materialin, Vol.28,1993).Its shortcoming is: though the small amount of metallic elements that restores can play the effect of alloying or crystal grain thinning, can solidify some fragility phases when content is too much, thus must limit the add-on of metal oxide, thus also limited the Al of self-formed from reaction
2O
3Content, and oxide compound is relatively expensive, uneconomical.Al once made with direct oxidation method in U.S. Lanxide company
2O
3/ Al based composites, it is the Al that destroys the molten state aluminum alloy surface under certain process conditions
2O
3Film makes inner aluminium liquid rise to the surface and produce new non-dense oxidation film along the breakage of film under capillary action, can form certain thickness Al in aluminum alloy surface after through 10～24 hours under the high temperature more than 1200 ℃
2O
3/ Al based composites, its shortcoming is: then its volume capacity is limited with metal-base composites if be used to form casting, and energy consumption is also high, and the time is also long.
The object of the present invention is to provide fast, low, the ceramic phase Al of energy consumption of a kind of reaction
2O
3The casting that content is adjustable and alloying pellet the is thin formation method of metal-base composites.
The invention is characterized in: it is made up of following steps successively:
A. commercial-purity aluminium in 750～800 ℃ of following fusions and degasification, insulation;
B. be flow 0.08～0.12m
3The exsiccant of/h industry pure oxygen 7 with 400～550 rev/mins rotating speed in molten aluminum liquid 2 rotatably spray go;
C. along with Al in the aluminium liquid 2
2O
3Generation, its viscosity is also increasing, and progressively the air input of oxygen 7 is brought up to 0.16m again
3/ h;
D. the time of rotary blowing pure oxygen 7 is between 20～120 minutes;
E. after reaching the required winding-up time, stop the industrial pure oxygen 7 of winding-up in aluminium liquid 2;
F. deliver to ingot casting or sample or stove internal cooling again after stirring aluminium liquid 2.
More even for alloying pellet is distributed, also can add weight in aluminium liquid 2 is its magnesium of 1%.
Evidence: this method can be used for forming the casting metal-base composites, and its energy consumption is low, reaction is fast, alloying pellet is tiny and distribution uniform.
In order in conjunction with the embodiments the present invention to be done more detailed description below, now as follows employed accompanying drawing title of present specification and numbering brief introduction:
Fig. 1: the synoptic diagram of rotary blowing technology;
Fig. 2～Fig. 7: the structure figure of each embodiment (amplifying 21000 times).
Embodiment:
Ask for an interview Fig. 1: the 1st, plumbago crucible; The 2nd, aluminium liquid, its temperature is different with embodiment; Between 750～800 ℃; The 3rd, oxygen bubbles; The 4th, open in the bottom of rotatable straight tube 6 and diameter is the little perforate of Φ 1mm; 5 is two blades, is fixed on the following right cylinder of rotatable straight tube 6, and its spacing is 25mm; The 6th, rotatable straight tube; The 7th, industrial pure oxygen, the 8th, thermopair.The step of this formation method is as follows:
A, industrial pure oxygen feed the rotatable straight tube 6 that links to each other with motor output shaft after drying, and its flow is at 0.08～0.12m
3/ h, different with embodiment;
B, commercial-purity aluminium (magnesium that also can add its weight 1%) is melted in plumbago crucible 1, in the time of 750 ℃ with hexachloroethane degasification and insulation;
C, rotatable straight tube 6 is stretched in the aluminium liquid 2, bubble 3 liquid level of gushing out is arranged this moment;
D, starter motor make rotatable straight tube 6 be with blade 5 rotations, and the bubble of gushing out 3 obviously reduces;
E, along with Al in the aluminium liquid 2
2O
3Generation, the viscosity of aluminium liquid 2 increases, and progressively improves the air input of oxygen 7 again, is up to 0.16m
3/ h, different with embodiment;
F, winding-up time are between 20～120 minutes, with Al
2O
3Design load and decide;
G, disable motor are pulled out rotatable straight tube 6 from aluminium liquid 2;
H, stir aluminium liquid 2 approximate numbers minute in the plumbago crucible 1 lightly;
I, Al
2O
3/ Al based composites liquation is poured out ingot casting or sample or stove internal cooling from plumbago crucible 1.
Below be described below with the corresponding embodiment 1～6 of Fig. 2～Fig. 7 with tabulation mode handle:
| Embodiment | Diagram | Material | Temperature of aluminum liquid (℃) | Oxygen flow (m 3/h) | The winding-up time (branch) | Alumina particle diameter (μ m) | Alumina particle content (%) | Explanation |
| 1 | 2 | Commercial-purity aluminium | 750 | 0.08 | 20 | 0.1 | ＜1 | Even particle distribution, but the tendency of gathering is arranged |
| 2 | 3 | Commercial-purity aluminium | 750 | 0.08-0.16 | 120 | ＜3 | 11 | Particle rises appreciably and distributes at |
| 3 | 4 | Commercial-purity aluminium+1% magnesium | 800 | 0.08-0.16 | 30 | ＜10 | 5.2 | Particle is Al 2O 3And MgAl 2O 4 |
| 4 | 5 | Commercial-purity aluminium+1% magnesium | 800 | 0.08-0.16 | 50 | ＜10 | 8.7 | |
| 5 | 6 | Commercial-purity aluminium+1% magnesium | 750 | 0.12-0.16 | 30 | ＜5 | 15 | Particle is Al 2O 2+MgAl 3O 4And be evenly distributed |
| 6 | 7 | Commercial-purity aluminium+1% magnesium | 750 | 0.12-0.16 | 50 | ＜5 | 31 |
This shows that method provided by the invention has reached desired result.
Claims (2)
1, a kind of Al of self-formed from reaction
2O
3The formation method of/Al base casting composite material, it is characterized in that: it is made up of following steps successively:
A. commercial-purity aluminium in 750～800 ℃ of following fusions and degasification, insulation;
B. be flow 0.08～0.12m
3The exsiccant of/h industry pure oxygen (7) with 400～550 rev/mins rotating speed in molten aluminum liquid (2) rotatably spray go;
C. along with Al in the aluminium liquid (2)
2O
3Generation, its viscosity is also increasing, and progressively the air input of oxygen (7) is brought up to 0.16m again
3/ h;
D. the time of rotary blowing pure oxygen (7) is between 20～120 minutes;
E. after reaching the required winding-up time, stop winding-up industrial pure oxygen (7) in aluminium liquid (2);
F. deliver to ingot casting or sample or stove internal cooling again after stirring aluminium liquid (2).
2, the Al of self-formed from reaction according to claim 1
2O
3The formation method of/Al base casting composite material is characterized in that: also can in aluminium liquid (2), add weight for its 1% be used to make the alloying pellet more uniform magnesium that distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94117521A CN1037013C (en) | 1994-10-25 | 1994-10-25 | Forming method of Al2O3 base casting composite material self-formed from reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94117521A CN1037013C (en) | 1994-10-25 | 1994-10-25 | Forming method of Al2O3 base casting composite material self-formed from reaction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1121533A CN1121533A (en) | 1996-05-01 |
| CN1037013C true CN1037013C (en) | 1998-01-14 |
Family
ID=5038405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94117521A Expired - Lifetime CN1037013C (en) | 1994-10-25 | 1994-10-25 | Forming method of Al2O3 base casting composite material self-formed from reaction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037013C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483418B (en) * | 2015-12-23 | 2017-07-18 | 太原科技大学 | A kind of high-temperature stirring prepares the device and method of aluminum matrix composite |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062769A (en) * | 1990-09-19 | 1992-07-15 | 全苏铝镁、电极工业科学研究设计院 | Make the method and apparatus of metal-base composites |
-
1994
- 1994-10-25 CN CN94117521A patent/CN1037013C/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062769A (en) * | 1990-09-19 | 1992-07-15 | 全苏铝镁、电极工业科学研究设计院 | Make the method and apparatus of metal-base composites |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1121533A (en) | 1996-05-01 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee |