CN106834769A - A kind of aluminium yttrium boron intermediate alloy and preparation method thereof - Google Patents
A kind of aluminium yttrium boron intermediate alloy and preparation method thereof Download PDFInfo
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- CN106834769A CN106834769A CN201710043476.7A CN201710043476A CN106834769A CN 106834769 A CN106834769 A CN 106834769A CN 201710043476 A CN201710043476 A CN 201710043476A CN 106834769 A CN106834769 A CN 106834769A
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- Prior art keywords
- aluminium
- yttrium
- intermediate alloy
- boron
- alloy
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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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to metal material field, it is related to a kind of aluminium yttrium boron intermediate alloy for refining aluminium and aluminium alloy and preparation method thereof.Aluminium yttrium boron intermediate alloy of the present invention, comprising aluminium, yttrium, three kinds of essential elements of boron, the mass percent of each component is respectively：Aluminium 85.00% 95.00%, yttrium 0.50% 10.00%, boron 0.50% 5.00%.The preparation method of aluminium yttrium boron intermediate alloy is：Fine aluminium is placed in resistance furnace first melts and be warming up to 780 1100 DEG C, the metallic yttrium or aluminium yttrium intermediate alloy, potassium fluoborate of certain mass are sequentially added in aluminum melt after being melted down, it is sufficiently stirred for being placed in being incubated in resistance furnace, insulation reaches after certain hour casting ingot-forming or is made wire rod.The preparation process is simple of the intermediate alloy, low cost, suitable industrialized production；Prepared aluminium yttrium boron intermediate alloy has excellent grain refining effect to aluminium and aluminium alloy.
Description
Technical field
The invention belongs to metal material field, in the middle of more particularly to a kind of aluminium-yttrium-boron for refining aluminium and aluminium alloy crystal grain
Alloy and preparation method thereof.
Background technology
With the gradually implementation continued to develop with national energy-saving emission reduction strategy of automotive light weight technology, with aluminium and its alloy as generation
The application of the alloy in lightweight of table is increasingly extensive, it is organized and the raising of performance requirement is also more and more urgent.Want to enable aluminum alloy to
Excellent performance is obtained, it is necessary to carry out micronization processes to aluminium alloy melt, appropriate micronization processes can improve the group of aluminium alloy
Knit and be greatly improved its mechanical property.At present, at home and abroad mainly carried out by adding the method for fining agent in industrial production
The refinement of crystal grain, conventional fining agent is the intermediate alloys such as Al-Ti-B.Production of the Al-Ti-B intermediate alloys in cast aluminium alloy gold
Middle application is occupied an leading position always, is also generally acknowledged a kind of effective fining agent, but due to the Ti elements in the intermediate alloy
Si reaction generations TiSi phases and TiSi in Al-Si systems casting alloy of the meeting with si content higher than 3%2Phase, have impact on Ti elements
Content, has slackened TiB in the intermediate alloy2The formation of particle, weakens its thinning effect, produces so-called poisoning effect, institute
The application field of the intermediate alloy is also limited with this.Therefore, by substantial amounts of experiment, having invented a kind of new middle conjunction
Gold, the nucleating agent refined as aluminum alloy organization is used.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided it is a kind of can effectively refine aluminium and its alloy aluminium-
Yttrium-boron intermediate alloy, while providing a kind of process is simple, low cost, being adapted to industrial preparation technology and method.
The present invention is achieved in the following ways：
A kind of aluminium-yttrium-boron intermediate alloy, comprising aluminium, yttrium, three kinds of essential elements of boron, the mass percent of each component is respectively：Aluminium
85.00%-95.00%, yttrium 0.50%-10.00%, boron 0.50%-5.00%；Aluminium ingot purity >=99.9%, disperse point in the intermediate alloy
Cloth micron-sized YB2Particle, and quantity is more, yttrium can be added with aluminium-yttrium intermediate alloy or simple metal yttrium, boron element
It is to be added in the form of potassium fluoborate.
The preparation method of above-mentioned aluminium-yttrium-boron intermediate alloy, its feature is comprised the steps of：
The preparation method of aluminium-yttrium-boron intermediate alloy is：Fine aluminium is placed in resistance furnace first melts and be warming up to 800-1100
DEG C, the metallic yttrium or aluminium of certain mass-yttrium intermediate alloy, potassium fluoborate are sequentially added in the aluminum melt of fusing, use graphite rod
It is sufficiently stirred for, is subsequently placed in insulation in resistance furnace, is stirred once with graphite rod every 10min-15min；Melt insulation to be mixed
The scheduled time is reached, blend melt is stood into 5min, press-in carbon trichloride is refined and skimmed, finally by blend melt casting ingot-forming
Or continuous casting is made wire rod.The preparation process is simple of the intermediate alloy, low cost, suitable industrialized production；Prepared aluminium-yttrium-
Boron intermediate alloy has excellent grain refining effect to aluminium and aluminium alloy.
Carbon trichloride described above dries moisture in drying baker；By mould and one layer of painting of used tool brushing of skimming
Material, prevents the pollution of Impurity Fe.Melting is carried out from graphite crucible in whole preparation process, from graphite rod stirring,
Purpose is to prevent the pollution of Si.
Specific embodiment
Two most preferred embodiments of the invention are given below.
Embodiment 1
As described above preparation technology and method prepare Al-5Y-B intermediate alloys process it is as follows：
（1）Raw material prepares：Aluminium ingot, metallic yttrium, potassium fluoborate, carbon trichloride etc., wherein aluminium ingot purity >=99.9%.
（2）The intermediate alloy of 1kg is prepared, the raw material needed for being weighed than Y/B=5 according to mass fraction, the burn out rate of aluminium is 2-
3%。
（3）Carbon trichloride is placed in drying baker, 1h is heated at 100 DEG C, to remove moisture.
（4）By required mould, the coating of Slag Tool brushing one, the pollution of the impurity elements such as Fe is prevented, prepared
Melting is carried out using graphite crucible in journey, is stirred from graphite rod, prevent the pollution of Si.
（5）Aluminium ingot is melted using well formula resistance furnace and is heated to 850 DEG C, after aluminium ingot is completely melt, will first weighed
Metallic yttrium wrapped with aluminium-foil paper, and be put into aluminum melt constantly with graphite rod stir after stand 5min；It is subsequently adding and has claimed
The potassium fluoborate of amount, is placed in resistance furnace after being stirred with graphite rod and is incubated, and temperature is set as 800 DEG C, and one is stirred every 15min
It is secondary, to ensure that reaction is carried out completely；Blend melt is incubated 1h in resistance furnace, and the carbon trichloride that addition accounts for gross mass 2-3%wt enters
Row refining degassing processing, pulls out slag, finally by melt cast ingot after standing 5min with Slag Tool.Shown in Fig. 1 is Al-
The metallographic structure of 5Y-B intermediate alloys, light block structure is YB in figure2The pattern of particle, YB2Uniform particle Dispersed precipitate is in base
In body tissue.
Embodiment 2
As described above preparation technology and method prepare Al-2Y-2B intermediate alloys process it is as follows：
（1）Raw material prepares：Aluminium ingot, metallic yttrium, potassium fluoborate, carbon trichloride etc., wherein aluminium ingot purity >=99.9%.
（2）The intermediate alloy of 1kg is prepared, required raw material is weighed than Y/B=2/2 according to mass fraction, the burn out rate of aluminium is
2-3%。
（3）Carbon trichloride is placed in drying baker, 1h is heated at 100 DEG C, to remove moisture.
（4）By required mould, the coating of Slag Tool brushing one, the pollution of the impurity elements such as Fe is prevented, prepared
Melting is carried out using graphite crucible in journey, is stirred from graphite rod, prevent the pollution of Si.
（5）Aluminium ingot is melted using well formula resistance furnace, after aluminium ingot is completely melt and add be warming up to 950 DEG C, first by
The metallic yttrium weighed is wrapped with aluminium-foil paper, and be put into aluminum melt constantly with graphite rod stir after stand 5min；It is subsequently adding
The potassium fluoborate weighed, is placed in resistance furnace after being stirred with graphite rod and is incubated, and temperature is set as 850 DEG C, every 15min stirrings
Once, carried out completely with ensureing reaction；Blend melt is incubated 30min in resistance furnace, and addition accounts for the chlordene of gross mass 2-3%wt
Ethane carries out refining degassing processing, slag is pulled out with Slag Tool after standing 5min, finally by melt cast ingot.Shown in Fig. 2
Be Al-2Y-2B intermediate alloys metallographic structure, light block structure is YB in figure2The pattern of particle, YB2Uniform particle disperse
It is distributed in matrix.
Claims (2)
1. a kind of preparation method of aluminium-yttrium-boron intermediate alloy, aluminium-yttrium-boron intermediate alloy includes aluminium, yttrium, the main unit of three kinds of boron
Element, the mass percent of each component is respectively：Aluminium 85.00%-95.00%, yttrium 0.50%-10.00%, boron 0.50%-5.00%；It is special
It is preparation method to levy, and is comprised the following steps：
Required raw material is got out according to following mass percent：0.50%-10.00% yttriums, 0.50%-5.00% boron, balance of fine aluminium；
Yttrium can be that to be added with aluminium-yttrium intermediate alloy form can also be that simple metal yttrium is added, wherein aluminium-yttrium-boron intermediate alloy
Middle boron element is added with potassium fluoborate.
2. fine aluminium is placed in resistance furnace and melts and be warming up to 780-1100 DEG C, be separately added into metallic yttrium or aluminium-yttrium intermediate alloy,
Potassium fluoborate, stirs once at regular intervals, resistance furnace is placed in 800-900 DEG C of insulation, after insulation reaches certain hour
Casting ingot-forming is made wire rod.
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| CN201710043476.7A CN106834769A (en) | 2017-01-21 | 2017-01-21 | A kind of aluminium yttrium boron intermediate alloy and preparation method thereof |
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| CN201710043476.7A CN106834769A (en) | 2017-01-21 | 2017-01-21 | A kind of aluminium yttrium boron intermediate alloy and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112458343A (en) * | 2020-11-26 | 2021-03-09 | 徐州新帝新材料有限公司 | B-containing amorphous master alloy refiner and preparation method thereof |
| CN112522531A (en) * | 2020-11-26 | 2021-03-19 | 徐州新帝新材料有限公司 | Ti-containing amorphous intermediate alloy refiner and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04218637A (en) * | 1990-12-18 | 1992-08-10 | Honda Motor Co Ltd | Manufacture of high strength and high toughness aluminum alloy |
| CN104946938A (en) * | 2015-07-08 | 2015-09-30 | 济南大学 | Preparation method of Al-Ti-B-Y intermediate alloy and application thereof |
-
2017
- 2017-01-21 CN CN201710043476.7A patent/CN106834769A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04218637A (en) * | 1990-12-18 | 1992-08-10 | Honda Motor Co Ltd | Manufacture of high strength and high toughness aluminum alloy |
| CN104946938A (en) * | 2015-07-08 | 2015-09-30 | 济南大学 | Preparation method of Al-Ti-B-Y intermediate alloy and application thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112458343A (en) * | 2020-11-26 | 2021-03-09 | 徐州新帝新材料有限公司 | B-containing amorphous master alloy refiner and preparation method thereof |
| CN112522531A (en) * | 2020-11-26 | 2021-03-19 | 徐州新帝新材料有限公司 | Ti-containing amorphous intermediate alloy refiner and preparation method thereof |
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