CN1145413A - Al, Ti, B grain graining agent for Al and Al alloy - Google Patents
Al, Ti, B grain graining agent for Al and Al alloy Download PDFInfo
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- CN1145413A CN1145413A CN95111990.7A CN95111990A CN1145413A CN 1145413 A CN1145413 A CN 1145413A CN 95111990 A CN95111990 A CN 95111990A CN 1145413 A CN1145413 A CN 1145413A
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 27
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 25
- 239000004411 aluminium Substances 0.000 claims description 18
- 229910010038 TiAl Inorganic materials 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 239000013078 crystal Substances 0.000 abstract description 6
- 239000006025 fining agent Substances 0.000 abstract description 4
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 abstract 1
- 229910010039 TiAl3 Inorganic materials 0.000 abstract 1
- 229910033181 TiB2 Inorganic materials 0.000 abstract 1
- 238000007670 refining Methods 0.000 description 28
- 235000013339 cereals Nutrition 0.000 description 11
- 239000010936 titanium Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 235000011468 Albizia julibrissin Nutrition 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 244000111056 Chinese albizia Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 240000003936 Plumbago auriculata Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Abstract
An nm-class heteronucleus AlTiB crystal grain fining agent for Al or Al alloy features that its heteronucleus is magnitude order of nm, comparable to critical size of heteronucleation; and the granular size of TiAl3 and TiB2 is 10-1000 nm and uniformly distributed in Al body. Said fining agent has the advantages of low Ti and B consumptions, high fining effect, short response time and long service life.
Description
The invention belongs to the technical field of refined aluminum, the grain-refining agent or the alterant that promptly provide a kind of aluminium and aluminum alloy melt casting to use.It is the continuation and the development of domestic and international widely used AlTiB master alloy.
Since the seventies, done a large amount of research work aspect refined aluminum and the aluminium alloy, the grain-refining agent of development can make the casting crystal grain of aluminium and aluminium alloy obtain obvious refinement.Existing widely used grain-refining agent mainly is divided into following three types: first kind is to be the AlTiB master alloy (as United States Patent (USP) 3857705) of carrier with aluminium, and it is by add Ti and B master alloy in molten aluminium.The AlTiB master alloy is matrix with aluminium, and block TiAl is wherein distributing
3Reach granular TiAl mutually
3Phase and TiB
2(see figure 1), the use properties of AlTiB grain-refining agent depends primarily on TiAl
3And TiB
2The form that phase exists therein, size and distributing homogeneity, general requirement TiAl
3Be block mutually, its size is less than 40 μ m, TiAl
3Phase and TiB
2The phase particle is evenly distributed.Second kind is TiB class master alloy, it is to be mixed compacting and the block grain-refining agent produced with granular metal titanium and mixture salt as (English Patent 1413848), and Ti and B that its mechanism of action of TiB type grain-refining agent is to enter in the al molten bath therein chemical action take place and form TiAl
3Phase and TiB
2Rotten mutually particle, the shortcoming of this Ti-B type grain-refining agent is TiAl
3Phase and TiB
2Rotten mutually coating of particles and size are difficult to control.For overcoming the problems referred to above, develop the grain-refining agent of the third type, i.e. intermetallic compound powder shape TiAlB grain-refining agent, its TiAl
3Phase particulate shape piece has obtained ideal control, and it is long that this TiAlB type grain-refining agent has the ageing resistance life-span, good in refining effect, and the advantage that consumption is few, but its time of response is long, and can not in chute, add, its range of application is subjected to certain restriction.
The aluminum grain refiner that the purpose of this invention is to provide a kind of practicality and high efficiency, i.e. the TiAlB grain-refining agent of the heterogeneous nucleus of nano level.
The TiAlB grain-refining agent of the heterogeneous nucleus of nano level provided by the present invention is characterized in that the heterogeneous nucleus that it provides is a nanometer scale, and is suitable with the critical nucleus size of heterogeneous forming core; TiAl in the TiAlB master alloy
3Phase and TiB
2Be distributed in the aluminum substrate to the disperse of phase uniform particles, its size is between 10-1000nm.
In order to make aluminium and aluminium alloy can reach best grain refining effect, and satisfy industrial different demands, the content of its main alloy element Ti and B should be Ti:2-10% (wt), B:0.2-1.5% (wt), and the Ti/B proportional range should be controlled between 3: 1 to 50: 1.
Aluminium alloy refinement mechanism is to exist in the al molten bath TiAl
3And TiB
2Two critical phases, these two kinds of compounds combine mutually and have constituted the topmost heterogeneous nucleus of aluminium alloy.According to heterogeneous forming core theory, should be nanometer scale as its critical size of the heterogeneous nucleus of crystalline, therefore can think traditional aluminum grain refiner all rice can give full play to the effect of its grain refining
The TiAlB grain-refining agent of the heterogeneous nucleus of nano level provided by the present invention has following advantage:
TiAl in the 1 this TiAlB master alloy
3Phase particulate size obviously diminishes, and is generally between 10-1000nm, suitable with the critical nucleus size of heterogeneous forming core.Thereby the TiAlB grain-refining agent of the heterogeneous nucleus of this nano level has Ti and the total consumption of B is low, the advantage that good in refining effect and time of response are short.
TiAl in the 2 this TiAlB master alloys
3Phase and TiB
2The phase particle is the distribution of even dispersion, advance al molten bath after, they also will form uniform distribution, avoid TiB like this
2The phase particle produces precipitation because of gathering, has promoted the homogeneity of grain refining, has prolonged the ageing resistance life-span.
3 this TiAlB grain-refining agents are nanometer scale because of the heterogeneous nucleus that it provided, and it can satisfy the requirement that resembles special aluminium industry crystal grain thinnings such as rolling ultra-thin aluminum foil.
4 product type variations of the present invention can be pulvis, shred, and band and silk tree material and bulk can be selected according to industrial different needs, and be therefore easy to use, simple and direct.
Accompanying drawing 1. traditional Al-Ti-B silk back scattering photos (a) * 175, (b) * 1000
The thin agent back scattering of accompanying drawing 2. nano level Al-2Ti-0.5B crystal grain photo * 1000
The thin agent back scattering of accompanying drawing 3. nano level Al-3Ti-1B crystal grain photo * 1000
The thin agent back scattering of accompanying drawing 4. nano level Al-5Ti-1B crystal grain photo * 1000
Example example 1
The grain-refining agent composition is Al-2Ti-0.5B (wt%), TiAl
3Phase TiB
2The phase particle size is evenly distributed in the Al matrix about 100mm as shown in Figure 2.
With muffle furnace 1.0 kilogram of 99.7% fine aluminium is melted to 740 ℃ in plumbago crucible, take out after 3 hours and skim, be pressed in al molten bath and stirring with bell jar the shred TiAlB grain-refining agent of preparation, addition is 0.5kg/T and 1kg/T, casting sample after skimming, residual Al liquid is put into 720 ℃ of insulations of stove 5 minutes, 10 minutes, 60 minutes, sampling was vertically cut the casting sample of obtaining open along medullary ray respectively, check through macrostructure, its grain fineness number all reaches 1 grade, and the grain refining effect of addition 1kg/T slightly is better than the thinning effect of addition 0.5kg/T, and different soaking times are little to the grain fineness number influence.
The grain-refining agent composition is Al-3Ti-1B (wt%), TiAl
3, TiB
2The phase particle size is more and is evenly distributed about 100nm.See figure (3)
Identical with embodiment 1 method, the block grain-refining agent of preparation is added with the addition of 0.5kg/T and 1kg/T, went bail for respectively warm 5 minutes at 720 ℃, the casting sample of 10 minutes and 60 minutes, check through macrostructure, its grain fineness number all reaches 1 grade, and the thinning effect of block fining agent slightly is better than the thinning effect of shred fining agent.
Embodiment 3
The grain-refining agent composition is Al-5Ti-1B (wt%), TiAl
3TiB
2The phase particle size is about 100nm, and it is more and be evenly distributed to measure more preceding two examples.See figure (4)
With the aluminium smelting furnace 8 ton of 99.7% fine aluminium melted,, adjust temperature, carry out the continuous casting and rolling aluminium sheet about 740 ℃ through the slag hitting refining.Powdery grain-refining agent addition with 0.5-1kg/T in chute of preparation is added continuously, cut sample respectively in the head and tail portion of every volume aluminium sheet.Through the macrostructure check, its grain fineness number all reaches 1 grade.
Claims (2)
1. aluminium and aluminium alloy aluminium Ti, B grain graining agent, it is characterized in that: the heterogeneous nucleus that it provided is a nanometer scale, and is suitable with the critical nucleus size of heterogeneous forming core; TiAl in the TiAIB master alloy
3Phase and TiB
2Be distributed in the aluminum substrate to the disperse of phase uniform particles, its size is between 10-1000nm.
2. by described aluminium of claim 1 and aluminium alloy aluminium Ti, B grain graining agent, it is characterized in that: the content of main alloy element Ti and B should be Ti:2-10% (wt), B:0.2-1.5% (wt), and the Ti/B proportional range should be controlled between 3: 1 to 50: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95111990.7A CN1145413A (en) | 1995-09-13 | 1995-09-13 | Al, Ti, B grain graining agent for Al and Al alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95111990.7A CN1145413A (en) | 1995-09-13 | 1995-09-13 | Al, Ti, B grain graining agent for Al and Al alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1145413A true CN1145413A (en) | 1997-03-19 |
Family
ID=5079218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95111990.7A Pending CN1145413A (en) | 1995-09-13 | 1995-09-13 | Al, Ti, B grain graining agent for Al and Al alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1145413A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537486A (en) * | 2009-04-30 | 2009-09-23 | 哈尔滨工业大学 | Method for preventing 5XXX aluminum alloy cast ingot from surface ruffle |
| CN1683093B (en) * | 2004-04-16 | 2010-04-14 | 住友金属工业株式会社 | Tool for thermal processing |
| CN101300367B (en) * | 2005-11-02 | 2010-09-01 | 土耳其科学技术研究理事会 | Process for producing a grain refining master alloy |
| CN101591746B (en) * | 2009-03-26 | 2011-11-30 | 广州钢铁企业集团有限公司 | Grain refinement and modification master alloy for aluminum and aluminum alloy and method for preparing same |
| CN102409200A (en) * | 2011-11-15 | 2012-04-11 | 镇江鼎胜铝业股份有限公司 | Container foil material and method for manufacturing container foil |
| CN101768708B (en) * | 2010-02-05 | 2012-05-23 | 深圳市新星轻合金材料股份有限公司 | Method for controlling variable quantity of grain refining capacity of aluminum-titanium-boron alloy by controlling compression ratio |
| CN105925854A (en) * | 2016-05-23 | 2016-09-07 | 沈阳工业大学 | High quality aluminum titanium boron refiner and preparation method thereof |
| CN110218891A (en) * | 2019-06-27 | 2019-09-10 | 北京工业大学 | A kind of environment-friendly type nano grade Al-Ti-B refiner and preparation method thereof |
| CN110340297A (en) * | 2019-07-30 | 2019-10-18 | 贵州安吉航空精密铸造有限责任公司 | A kind of casting method of metal alloy castings |
| CN110358948A (en) * | 2019-06-11 | 2019-10-22 | 上海交通大学 | A kind of aluminium-titanium diboride-phosphorus intermediate alloy and preparation method thereof |
| CN113637859A (en) * | 2021-08-11 | 2021-11-12 | 山东宏和轻量化科技有限公司 | Aluminum alloy and extrusion casting method and equipment thereof |
| CN115558821A (en) * | 2022-12-06 | 2023-01-03 | 北京航空航天大学 | Realize TiB 2 Preparation method of size-controllable Al-Ti-B refiner |
-
1995
- 1995-09-13 CN CN95111990.7A patent/CN1145413A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1683093B (en) * | 2004-04-16 | 2010-04-14 | 住友金属工业株式会社 | Tool for thermal processing |
| CN101300367B (en) * | 2005-11-02 | 2010-09-01 | 土耳其科学技术研究理事会 | Process for producing a grain refining master alloy |
| CN101591746B (en) * | 2009-03-26 | 2011-11-30 | 广州钢铁企业集团有限公司 | Grain refinement and modification master alloy for aluminum and aluminum alloy and method for preparing same |
| CN101537486B (en) * | 2009-04-30 | 2013-06-05 | 哈尔滨工业大学 | Method for preventing 5XXX aluminum alloy cast ingot from surface ruffle |
| CN101537486A (en) * | 2009-04-30 | 2009-09-23 | 哈尔滨工业大学 | Method for preventing 5XXX aluminum alloy cast ingot from surface ruffle |
| CN101768708B (en) * | 2010-02-05 | 2012-05-23 | 深圳市新星轻合金材料股份有限公司 | Method for controlling variable quantity of grain refining capacity of aluminum-titanium-boron alloy by controlling compression ratio |
| CN102409200A (en) * | 2011-11-15 | 2012-04-11 | 镇江鼎胜铝业股份有限公司 | Container foil material and method for manufacturing container foil |
| CN105925854A (en) * | 2016-05-23 | 2016-09-07 | 沈阳工业大学 | High quality aluminum titanium boron refiner and preparation method thereof |
| CN110358948A (en) * | 2019-06-11 | 2019-10-22 | 上海交通大学 | A kind of aluminium-titanium diboride-phosphorus intermediate alloy and preparation method thereof |
| CN110218891A (en) * | 2019-06-27 | 2019-09-10 | 北京工业大学 | A kind of environment-friendly type nano grade Al-Ti-B refiner and preparation method thereof |
| CN110340297A (en) * | 2019-07-30 | 2019-10-18 | 贵州安吉航空精密铸造有限责任公司 | A kind of casting method of metal alloy castings |
| CN113637859A (en) * | 2021-08-11 | 2021-11-12 | 山东宏和轻量化科技有限公司 | Aluminum alloy and extrusion casting method and equipment thereof |
| CN115558821A (en) * | 2022-12-06 | 2023-01-03 | 北京航空航天大学 | Realize TiB 2 Preparation method of size-controllable Al-Ti-B refiner |
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