CN106521215A - Method for refining grain size of aluminum alloy cast ingot - Google Patents
Method for refining grain size of aluminum alloy cast ingot Download PDFInfo
- Publication number
- CN106521215A CN106521215A CN201611229182.5A CN201611229182A CN106521215A CN 106521215 A CN106521215 A CN 106521215A CN 201611229182 A CN201611229182 A CN 201611229182A CN 106521215 A CN106521215 A CN 106521215A
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- CN
- China
- Prior art keywords
- grain size
- cast ingot
- aluminum alloy
- alloy cast
- aluminium 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
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
-
- 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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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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- 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 discloses a method for refining the grain size of an aluminum alloy cast ingot. During aluminum alloy smelting, refiners Al-5Ti-1B and Al-3Ti-0.15C are added. According to the above method for refining the grain size of the aluminum alloy cast ingot, during aluminum alloy smelting, the refiners Al-5Ti-1B and Al-3Ti-0.15C are added, the grain size of the aluminum alloy cast ingot is refined, meanwhile, influences on the maximum loose size of the cast ingot are weakened, and accordingly influences on the cast ingot forming quality from grain size refining are weakened.
Description
Technical field
The present invention relates to metallurgical technology field, more particularly to a kind of method of aluminium alloy cast ingot grain size refinement.
Background technology
Preferably ingot structure is that have uniform, tiny equiax crystal in ingot casting whole cross section, this is because equiax crystal is each
Anisotropy is little, and it is good to deform uniform, excellent performance, plasticity during processing, beneficial to casting and subsequent plastic working.Obtain this group
Knit, it usually needs micronization processes are carried out to melt.Every process that can promote forming core, inhibiting grain growth, can crystal grain thinning.
At present in the thinning method of aluminium alloy cast ingot grain size, most commonly seen is by the way of fining agent is added, typically in melting
When add al-ti-b refiner to be refined, but easily there is ingot casting bottom and corner crackle after adding aluminum titanium boron, affect ingot casting
Maximum loose size, and then affect the quality of ingot casting shaping.
In sum, how to solve the problems, such as that the refinement of aluminium alloy cast ingot grain size easily affects ingot casting shaping quality, into
For those skilled in the art's technical barrier urgently to be resolved hurrily.
The content of the invention
It is an object of the invention to provide the method for aluminium alloy cast ingot grain size refinement, reduction while grain size obtains refining
Impact to ingot casting shaping quality.
To achieve these goals, the invention provides a kind of aluminium alloy cast ingot grain size refinement method, in aluminium alloy
During melting, while adding fining agent Al-5Ti-1B and Al-3Ti-0.15C.
Preferably, the additional proportion of the Al-5Ti-1B and the Al-3Ti-0.15C is 1:1.
Preferably, the addition of the addition of the Al-5Ti-1B and the Al-3Ti-0.15C is 1.2 kg/ton
～1.5 kg/ton.
Content, the method for above-mentioned aluminium alloy cast ingot grain size refinement, by molten in aluminium alloy are introduced compared to background technology
During refining, while adding fining agent Al-5Ti-1B and Al-3Ti-0.15C so that while aluminium alloy cast ingot grain size is refined, right
The impact of the maximum loose size of ingot casting is improved, and then reduces impact of the grain size refinement to ingot casting shaping quality.
Specific embodiment
The core of the present invention is to provide a kind of method of aluminium alloy cast ingot grain size refinement, while grain size obtains refinement
Reduce the impact to ingot casting shaping quality.
In order that those skilled in the art more fully understands the technical scheme of present invention offer, below in conjunction with concrete reality
The present invention is described in further detail to apply example.
It is provided in an embodiment of the present invention the invention provides a kind of method of aluminium alloy cast ingot grain size refinement, in aluminium alloy
During melting, while adding fining agent Al-5Ti-1B and Al-3Ti-0.15C.
In order to those skilled in the art are better understood from technical solution of the present invention, with reference to specifically testing
Journey is illustrated：
Crystal grain refinement experiment is carried out, Al-5Ti-1B silks and Al-3Ti-0.15C silks have been combined into (i.e. while adding) together
Control by each addition 1.2kg/t (kilogram per tonne), 1.5kg/t (kilogram per tonne).Test data such as table 1, grain size reduce to casting
The maximum loose size of ingot affects little, but after adding Al-5Ti-1B silks, bottom and corner crackle easily occurs in ingot casting, have impact on
Ingot casting shaping, when being individually added into Al-3Ti-0.15C silks, the refinement of ingot casting grain size is not again obvious.Al-5Ti-1B silks are adopted only
When combining the mode of addition together with Al-3Ti-0.15C silks, not only grain size refinement is obvious, and maximum loose size is obtained
Improve.
1 fining agent of table is affected on ingot casting grain size
Content, the method for above-mentioned aluminium alloy cast ingot grain size refinement, by molten in aluminium alloy are introduced compared to background technology
During refining, fining agent Al-5Ti-1B and Al-3Ti-0.15C are added so that while aluminium alloy cast ingot grain size is refined, to ingot casting
The impact of maximum loose size improved, and then reduce impact of the grain size refinement to ingot casting shaping quality.
In particular embodiments, the additional proportion of above-mentioned Al-5Ti-1B and Al-3Ti-0.15C is preferably 1:1.
Can be seen that according to 1 by above-mentioned experiment:1 mode for adding, grain size thinning effect and the maximum loose size of ingot casting improve effect
Fruit is preferable.But it should be recognized that above-mentioned 1:1 feed postition is only that one kind of the embodiment of the present invention is preferably illustrated,
Can also be added according to other ratios according to the actual production demand of different aluminum alloys ingot casting.
In a further preferred embodiment, the addition of the addition and Al-3Ti-0.15C of Al-5Ti-1B is
1.2 kg/ton～1.5 kg/ton.Of course, it should be understood that above-mentioned addition is only a kind of excellent of the embodiment of the present invention
The citing of choosing, can also be the addition for being arranged to other numerical value according to the actual production demand of different aluminum alloys.By experiment
Checking show that above-mentioned addition is the Production requirement that 1.2 kg/ton～1.5 kg/ton of mode is adapted to major part aluminium alloy
Addition.
Above the method for aluminium alloy cast ingot grain size provided by the present invention refinement is described in detail.Need explanation
, each embodiment in this specification described by the way of progressive, and what each embodiment was stressed is and which
The difference of his embodiment, between each embodiment identical similar part mutually referring to.
Also, it should be noted that herein, such as first and second or the like relational terms are used merely to one
Entity or operation are made a distinction with another entity or operation, and are not necessarily required or implied between these entities or operation
There is any this actual relation or order.And, term " including ", "comprising" or its any other variant are intended to contain
Lid nonexcludability is included, so that not only include those key elements including the article or equipment of a series of key elements, but also
Including other key elements being not expressly set out, or also include the key element intrinsic for this article or equipment.Do not having
In the case of more restrictions, the key element limited by sentence "including a ...", it is not excluded that in the article including above-mentioned key element
Or in equipment, also there is other identical element.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help and understand the method for the present invention and its core concept.It should be pointed out that for the ordinary skill of the art
For personnel, under the premise without departing from the principles of the invention, some improvement and modification can also be carried out to the present invention, these improvement
Also fall in the protection domain of the claims in the present invention with modification.
Claims (3)
1. a kind of method that aluminium alloy cast ingot grain size is refined, it is characterised in that in aluminium alloy smelting, while adding fining agent
Al-5Ti-1B and Al-3Ti-0.15C.
2. the method for claim 1, it is characterised in that the addition of the Al-5Ti-1B and the Al-3Ti-0.15C
Ratio is 1:1.
3. method as claimed in claim 2, it is characterised in that the addition of the Al-5Ti-1B and the Al-3Ti-
The addition of 0.15C is 1.2 kg/ton～1.5 kg/ton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229182.5A CN106521215A (en) | 2016-12-27 | 2016-12-27 | Method for refining grain size of aluminum alloy cast ingot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611229182.5A CN106521215A (en) | 2016-12-27 | 2016-12-27 | Method for refining grain size of aluminum alloy cast ingot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106521215A true CN106521215A (en) | 2017-03-22 |
Family
ID=58338845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611229182.5A Pending CN106521215A (en) | 2016-12-27 | 2016-12-27 | Method for refining grain size of aluminum alloy cast ingot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106521215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165785A (en) * | 2017-12-29 | 2018-06-15 | 西南铝业（集团）有限责任公司 | A kind of aluminum grain refinement method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239272A (en) * | 2008-10-02 | 2011-11-09 | 魁北克水电公司 | Composite materials for wettable cathodes and use thereof for aluminium production |
-
2016
- 2016-12-27 CN CN201611229182.5A patent/CN106521215A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239272A (en) * | 2008-10-02 | 2011-11-09 | 魁北克水电公司 | Composite materials for wettable cathodes and use thereof for aluminium production |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165785A (en) * | 2017-12-29 | 2018-06-15 | 西南铝业（集团）有限责任公司 | A kind of aluminum grain refinement method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |