CN110343895A - TiB in situ2The preparation method of particle REINFORCED Al Cu based composites - Google Patents
TiB in situ2The preparation method of particle REINFORCED Al Cu based composites Download PDFInfo
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- CN110343895A CN110343895A CN201910605432.8A CN201910605432A CN110343895A CN 110343895 A CN110343895 A CN 110343895A CN 201910605432 A CN201910605432 A CN 201910605432A CN 110343895 A CN110343895 A CN 110343895A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1005—Pretreatment of the non-metallic additives
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/10—Alloys containing non-metals
- C22C1/1036—Alloys containing non-metals starting from a melt
- C22C1/1047—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites
- C22C1/1052—Alloys containing non-metals starting from a melt by mixing and casting liquid metal matrix composites by mixing and casting metal matrix composites with reaction
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- 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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0073—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only borides
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- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
The present invention relates to aluminium copper technical fields, specially original position TiB2The preparation method of particle REINFORCED Al Cu based composites, this method preparation cost is low, macroblock quantization production can be achieved, salt-mixture is refined and is sufficiently mixed uniformly using high-energy ball milling and is pressed into prefabricated section, prefabricated section fuses into molten metal in the form successively removed when reaction, expands the contact area of salt-mixture and molten metal, ensure the component ratio of reacting salt, reaction efficiency is improved, reaction difficulty is reduced, to improve the recovery rate of reactive element；Electromagnetic agitation exacerbates melt internal convection, causes washing away strongly to liquid-solid boundary, the agglomerating TiB formed in melt2Particle is smashed by swiftly flowing liquid stream, and size becomes smaller, and is uniformly distributed in melt under intense electromagnetic stirring.
Description
Technical field
The present invention relates to aluminium copper technical fields, specially original position TiB2The preparation of particle REINFORCED Al Cu based composites
Method.
Background technique
Aluminum matrix composite has many advantages, such as lightweight, wear-resisting, corrosion-resistant and low thermal coefficient of expansion, be increasingly becoming aviation,
The emphasis direction of the industry fields high performance material such as space flight, automobile, electronics research；Relative to traditional outer addition, in-situ authigenic
TiB2Particle enhanced aluminum-based composite material has small specific strength specific stiffness height, anisotropy, high elastic modulus and and alloy matrix aluminum
The features such as interface cohesion is good, it has also become the hot issue in aluminum matrix composite research field；Currently, existing TiB2Particle increases
There are still reactive element recovery rates in strong aluminum matrix composite preparation process low, iB2Reinforcement is unevenly distributed, reunites, TiB2?
Particle size is big and preparation cost is high, and hardly possible realizes the technical problems such as macroblock quantization production.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of original position TiB2The system of particle REINFORCED Al Cu based composites
Preparation Method, specifically includes the following steps:
(1) high-energy ball milling is carried out after mixing potassium fluoborate and potassium fluotitanate, is pressed into circle after addition industrial alcohol mixing
Cylinder prefabricated section places into 200-300 DEG C of baking oven and keeps the temperature 3-4h, must solidify salt-mixture prefabricated section；
(2) salt-mixture prefabricated section indentation electromagnetic induction furnace crucible molten metal bottom will be solidified using long handle graphite spoon to fill
Divide reaction.
Further, the atomic ratio of Ti and B is 1:2 in the potassium fluoborate and potassium fluotitanate.
Further, the revolving speed of the ball milling is 100-400r/min, Ball-milling Time 5-100min.
Further, in the molten metal each element mass percent are as follows: 4.6~5.3%Cu, 0.3%~0.5%
Mn, 0.15~0.3%Ti, 0.15~0.25%Cd, 0.10~0.30%Zr, 0.005~0.06%B, 0.10~0.30%V,
0.01~0.2%Y, Al surplus.
Further, the prefabricated section consistency of the compacting is 65~75%.
Further, the specification of the prefabricated section is (50~Φ of Φ 80) mm × (50~100) mm.
Further, the molten metal raw material includes refined aluminium ingot, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, cadmium metal, aluminium
Vanadium intermediate alloy, aluminium zirconium hardener, Al-Ti-B intermediate alloy and aluminium yttrium intermediate alloy.
Further, the preparation of the molten metal is specifically includes the following steps: be preheated to 300-500 DEG C for melting kettle,
2-4h is kept the temperature, refined aluminium ingot, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy is added, heating makes its fusing, stirs 1-3min, is warming up to
680-700 DEG C, cadmium metal and aluminium zirconium hardener is added, 1~3min is stirred after fusing, then be warming up to 700-730 DEG C, aluminium is added
Vanadium intermediate alloy stirs 1~3min after fusing, adjust temperature to 700-750 DEG C, be added among Al-Ti-B intermediate alloy and aluminium yttrium
Alloy stirs 3-5min, then is warming up to 850-900 DEG C after fusing.
Invention prepares composite material, reactional equation using salt-mixture reaction method fabricated in situ are as follows: 3K2TiF6+
6KBF4+ 10Al=3TiB2+9KAlF4+K3AlF6。
Beneficial effect
Salt-mixture is refined and is sufficiently mixed uniformly using high-energy ball milling and is pressed into prefabricated section by the present invention, and when reaction is prefabricated
Block fuses into molten metal in the form successively removed, and expands the contact area of salt-mixture and molten metal, it is ensured that reacting salt at
Divide ratio, improve reaction efficiency, reduce reaction difficulty, to keep the recovery rate of reactive element high；Electromagnetic agitation exacerbates
Melt internal convection causes washing away strongly to liquid-solid boundary, the agglomerating TiB formed in melt2Particle is swiftly flowing
Liquid stream smashes, and size becomes smaller, and is uniformly distributed in melt under intense electromagnetic stirring.
TiB prepared by the present invention2The AlCu based composites even particle distribution of particle enhancing, particle size is tiny, group
It knits and is evenly distributed, tensile strength improves 10~15% compared to matrix alloy, and yield strength improves 15~20%；Present invention process letter
Single, manufacturing cost is low, and reactive element recovery rate is high, casting can prepare composite material ingot casting directly by way of melting, can also
The preparation of composite material is combined with sand mold, permanent mold casting and prepares casting, is suitble to industrialization magnanimity production.
Detailed description of the invention
Fig. 1 prepares schematic diagram for composite material of the present invention；
Fig. 2 is composite material metallographic structure figure prepared by the present invention；
Specific embodiment
Tuberculosis specific embodiment is limited technical solution of the present invention is further below, but claimed
Range is not only limited to made description.
Embodiment 1
A kind of original position TiB2The preparation method of particle REINFORCED Al Cu based composites, specifically includes the following steps:
(1) will potassium fluoborate and potassium fluotitanate mix after carry out high-energy ball milling, the revolving speed of ball milling is 100r/min, when ball milling
Between be 5min, after ball milling, be pressed into after addition industrial alcohol mixing specification be 5 × 50mm of Φ, density for 65% cylinder
Body prefabricated section places into 200 DEG C of baking ovens and keeps the temperature 3h, must solidify salt-mixture prefabricated section；
(2) melting kettle is preheated to 300 DEG C, keeps the temperature 2h, refined aluminium ingot, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy is added,
Heating makes its fusing, stirs 1min, is warming up to 680 DEG C, and cadmium metal and aluminium zirconium hardener is added, 1min is stirred after fusing, then
700 DEG C are warming up to, aluminium vanadium intermediate alloy is added, 1min is stirred after fusing, adjusts temperature to 700 DEG C, is added among aluminium titanium boron and closes
Gold and aluminium yttrium intermediate alloy, stir 3min, then be warming up to 850 DEG C and obtain molten metal after fusing, will be solidified using long handle graphite spoon
The indentation of salt-mixture prefabricated section is equipped with the electromagnetic induction furnace crucible bottom of molten metal, until at the 2/3 of molten metal solution deep, wait react
After completely (appearance of aluminium alloy surface no-spark), surface layer fused salt is scooped out using skimming ladle, 15min is stood at 880 DEG C, is adjusted molten
Body refines 15min to 710 DEG C, using high-purity argon gas, stands 5min, is cast in preheated metal shape casting mould or is cast
Part casting.
Further, the atomic ratio of Ti and B is 1:2 in the potassium fluoborate and potassium fluotitanate.
Further, in the molten metal each element mass percent are as follows: 4.6%Cu, 0.3%Mn, 0.15%Ti,
0.15%Cd, 0.10%Zr, 0.005%B, 0.10%V, 0.01%Y, Al surplus.
Embodiment 2
A kind of original position TiB2The preparation method of particle REINFORCED Al Cu based composites, specifically includes the following steps:
(1) high-energy ball milling is carried out after mixing potassium fluoborate and potassium fluotitanate, the revolving speed of ball milling is 100-400r/min, ball
Time consuming is 5-100min, after ball milling, is pressed into that specification is 80 × 100mm of Φ, density is after addition industrial alcohol mixing
75% cylindrical body prefabricated section places into 300 DEG C of baking ovens and keeps the temperature 4h, must solidify salt-mixture prefabricated section；
(2) melting kettle is preheated to 500 DEG C, keeps the temperature 4h, refined aluminium ingot, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy is added,
Heating makes its fusing, stirs 3min, is warming up to 700 DEG C, and cadmium metal and aluminium zirconium hardener is added, 3min is stirred after fusing, then
730 DEG C are warming up to, aluminium vanadium intermediate alloy is added, 3min is stirred after fusing, adjusts temperature to 750 DEG C, is added among aluminium titanium boron and closes
Gold and aluminium yttrium intermediate alloy, stir 5min, then be warming up to 900 DEG C and obtain molten metal after fusing, will be solidified using long handle graphite spoon
The indentation of salt-mixture prefabricated section is equipped with the electromagnetic induction furnace crucible bottom of molten metal, until at the 2/3 of molten metal solution deep, wait react
After completely, surface layer fused salt is scooped out using skimming ladle, 20min is stood at 900 DEG C, adjusts melt to 730 DEG C, using high-purity argon gas
20min is refined, 10min is stood, is cast in preheated metal shape casting mould or carries out casting pouring.
Further, the atomic ratio of Ti and B is 1:2 in the potassium fluoborate and potassium fluotitanate.
Further, in the molten metal each element mass percent are as follows: 5.3%Cu, 0.5%Mn, 0.3%Ti,
0.25%Cd, 0.30%Zr, 0.06%B, 0.10~0.30%V, 0.2%Y, Al surplus.
Embodiment 3
A kind of original position TiB2The preparation method of particle REINFORCED Al Cu based composites, specifically includes the following steps:
(1) will potassium fluoborate and potassium fluotitanate mix after carry out high-energy ball milling, the revolving speed of ball milling is 150r/min, when ball milling
Between be 20min, after ball milling, be pressed into after addition industrial alcohol mixing specification be 50 × 60mm of Φ, density for 70% circle
Cylinder prefabricated section places into 250 DEG C of baking ovens and keeps the temperature 3h, must solidify salt-mixture prefabricated section；
(2) melting kettle is preheated to 400 DEG C, keeps the temperature 3h, refined aluminium ingot, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy is added,
Heating makes its fusing, stirs 2min, is warming up to 690 DEG C, and cadmium metal and aluminium zirconium hardener is added, 2min is stirred after fusing, then
715 DEG C are warming up to, aluminium vanadium intermediate alloy is added, 2min is stirred after fusing, adjusts temperature to 725 DEG C, is added among aluminium titanium boron and closes
Gold and aluminium yttrium intermediate alloy, stir 5min, then be warming up to 880 DEG C and obtain molten metal after fusing, will be solidified using long handle graphite spoon
The indentation of salt-mixture prefabricated section is equipped with the electromagnetic induction furnace crucible bottom of molten metal, until at the 2/3 of molten metal solution deep, wait react
After completely (appearance of aluminium alloy surface no-spark), surface layer fused salt is scooped out using skimming ladle, stands 20min at 880~900 DEG C,
Adjust melt to 720 DEG C, using high-purity argon gas refine 20min, stand 8min, be cast in preheated metal shape casting mould or
Carry out casting pouring.
Further, the atomic ratio of Ti and B is 1:2 in the potassium fluoborate and potassium fluotitanate.
Further, in the molten metal each element mass percent are as follows: 5.0%Cu, 0.4%Mn, 0.25%Ti,
0.20%Cd, 0.20%Zr, 0.005%B, 0.20%V, 0.01%Y, Al surplus.
It is important to point out that, above embodiments and test example are only limitted to do further technical solution of the present invention herein
Elaboration and understanding, should not be understood as it is further to technical solution of the present invention limited, what those skilled in the art made
The innovation and creation of non-protruding essential characteristics and marked improvement still fall within protection category of the invention.
Claims (8)
1. original position TiB2The preparation method of particle REINFORCED Al Cu based composites, which comprises the following steps:
(1) high-energy ball milling is carried out after mixing potassium fluoborate and potassium fluotitanate, is pressed into cylindrical body after addition industrial alcohol mixing
Prefabricated section places into 200-300 DEG C of baking oven and keeps the temperature 3-4h, must solidify salt-mixture prefabricated section；
(2) solidification salt-mixture prefabricated section indentation electromagnetic induction furnace crucible molten metal bottom is carried out using long handle graphite spoon sufficiently anti-
It should.
2. original position TiB as described in claim 12The preparation method of particle REINFORCED Al Cu based composites, which is characterized in that described
The atomic ratio of Ti and B is 1:2 in potassium fluoborate and potassium fluotitanate.
3. original position TiB as described in claim 12The preparation method of particle REINFORCED Al Cu based composites, which is characterized in that described
The revolving speed of ball milling is 100-400r/min, Ball-milling Time 5-100min.
4. original position TiB as described in claim 12The preparation method of particle REINFORCED Al Cu based composites, which is characterized in that described
The mass percent of each element in molten metal are as follows: 4.6~5.3%Cu, 0.3~0.5%Mn, 0.15~0.3%Ti, 0.15~
0.25%Cd, 0.10~0.30%Zr, 0.005~0.06%B, 0.10~0.30%V, 0.01~0.2%Y, Al surplus.
5. original position TiB as described in claim 12The preparation method of particle REINFORCED Al Cu based composites, which is characterized in that described
The prefabricated section consistency of compacting is 65~75%.
6. original position TiB as described in claim 12The preparation method of particle REINFORCED Al Cu based composites, which is characterized in that described
The specification of prefabricated section is (50~Φ of Φ 80) mm × (50~100) mm.
7. original position TiB as described in claim 12The preparation method of particle REINFORCED Al Cu based composites, which is characterized in that described
Molten metal raw material includes refined aluminium ingot, aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, cadmium metal, aluminium vanadium intermediate alloy, the centre conjunction of aluminium zirconium
Gold, Al-Ti-B intermediate alloy and aluminium yttrium intermediate alloy.
8. original position TiB as described in claim 1 or 72The preparation method of particle REINFORCED Al Cu based composites, which is characterized in that institute
The preparation of molten metal is stated specifically includes the following steps: melting kettle is preheated to 300-500 DEG C, keeps the temperature 2-4h, be added refined aluminium ingot,
Aluminum bronze intermediate alloy, aluminium manganese intermediate alloy, heating make its fusing, stir 1-3min, are warming up to 680-700 DEG C, and cadmium metal is added
And aluminium zirconium hardener, 1~3min is stirred after fusing, then be warming up to 700-730 DEG C, aluminium vanadium intermediate alloy is added, stirs after fusing
1~3min is mixed, temperature is adjusted to 700-750 DEG C, Al-Ti-B intermediate alloy and aluminium yttrium intermediate alloy is added, stirs 3- after fusing
5min, then it is warming up to 850-900 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122743A (en) * | 2021-04-23 | 2021-07-16 | 东北大学 | Al-V-B intermediate alloy and preparation method and application thereof |
| CN115449657A (en) * | 2022-09-29 | 2022-12-09 | 昆明冶金研究院有限公司 | Preparation method of aluminum-titanium-boron alloy capable of effectively controlling TiB2 particle size and distribution range |
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| CN1928136A (en) * | 2006-08-14 | 2007-03-14 | 吉林大学 | High strength high toughness casting aluminum alloy |
| CN102787252A (en) * | 2012-08-14 | 2012-11-21 | 大连理工大学 | Method for preparing TiB2 reinforced aluminium matrix composite in situ |
| US20130136652A1 (en) * | 2011-11-28 | 2013-05-30 | Kia Motors Corporation | Aluminum alloy for continuous casting and method for producing the same |
| CN105369090A (en) * | 2015-12-04 | 2016-03-02 | 西南铝业（集团）有限责任公司 | Preparation method of Zl205A alloy ingot |
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2019
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928136A (en) * | 2006-08-14 | 2007-03-14 | 吉林大学 | High strength high toughness casting aluminum alloy |
| US20130136652A1 (en) * | 2011-11-28 | 2013-05-30 | Kia Motors Corporation | Aluminum alloy for continuous casting and method for producing the same |
| CN102787252A (en) * | 2012-08-14 | 2012-11-21 | 大连理工大学 | Method for preparing TiB2 reinforced aluminium matrix composite in situ |
| CN105369090A (en) * | 2015-12-04 | 2016-03-02 | 西南铝业（集团）有限责任公司 | Preparation method of Zl205A alloy ingot |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122743A (en) * | 2021-04-23 | 2021-07-16 | 东北大学 | Al-V-B intermediate alloy and preparation method and application thereof |
| CN115449657A (en) * | 2022-09-29 | 2022-12-09 | 昆明冶金研究院有限公司 | Preparation method of aluminum-titanium-boron alloy capable of effectively controlling TiB2 particle size and distribution range |
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Effective date of registration: 20221221 Address after: 550009 No.7 Honghe Road, economic and Technological Development Zone, Guiyang City, Guizhou Province Patentee after: Aerospace Jiangnan Group Co.,Ltd. Patentee after: GUIZHOU AEROSPACE FENGHUA PRECISION EQUIPMENT Co.,Ltd. Address before: 550009 Aerospace Park, No.7, Honghe Road, Xiaohe District, Guiyang City, Guizhou Province Patentee before: GUIZHOU AEROSPACE FENGHUA PRECISION EQUIPMENT Co.,Ltd. |