CN108193063A - A kind of aluminium-manganese-boron intermediate alloy and preparation method thereof - Google Patents
A kind of aluminium-manganese-boron intermediate alloy and preparation method thereof Download PDFInfo
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- CN108193063A CN108193063A CN201810055341.7A CN201810055341A CN108193063A CN 108193063 A CN108193063 A CN 108193063A CN 201810055341 A CN201810055341 A CN 201810055341A CN 108193063 A CN108193063 A CN 108193063A
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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
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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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Abstract
A kind of aluminium manganese boron intermediate alloy and preparation method thereof, the intermediate alloy is by following mass percent into being grouped as：Al 60.6~95.1%, Mn 4.5~36.0%, B 0.1~3.0%, Fe≤0.15%, Si≤0.10%, remaining impurity element≤0.15%.The present invention is due to using aluminium manganese boron ternary intermediate alloy as Fe-riched phase alterant, the presence of needle-shaped Fe-riched phase and nascent iron phase can not only be completely eliminated, obtain uniform Chinese character shape Fe-riched phase, but also can substantially it is stepped combined addition Mn agent and B agent intermediate alloy total amount of adding, reduce process procedure simultaneously, be conducive to control alloying component, more suitable for industrialized production.
Description
Technical field
The present invention relates to a kind of alterants of Fe-riched phase in aluminum and aluminum alloy mateial, are specifically related in a kind of aluminium-manganese-boron
Between alloy and preparation method thereof.
Background technology
Iron is impurity element most commonly seen in aluminium alloy, due to the maxima solubility in ferro element at room temperature aluminium solid
For 0.05wt.%, the 1/100~1/34 of maxima solubility only in aluminum melt.Therefore, iron in aluminium alloy substantially all with crisp and
Hard Fe-riched phase form exists.α-Fe phases and β-Fe phases can be divided into according to the crystal structure of Fe-riched phase, wherein β-Fe are mutually monocline
Structure, form are in long and narrow gill shape, and when stress isolates aluminum substrate, and expands as formation of crack and along Fe-riched phase length direction
Exhibition greatly damages the plasticity of aluminium alloy.And α-Fe are mutually body-centered cubic structure, grown form is in Chinese character shape, and matrix is isolated
It is greatly reduced, plasticity greatly improves.Therefore, it is to slow down ferro element to endanger the most commonly used method to improve Fe-riched phase form.At present,
Two classes can be summarized as by improving the method for Fe-riched phase form, and the first kind is to change Fe-riched phase crystal structure to improve the growth of Fe-riched phase
Direction, such as Mn, Co, Cr, Be, Sc.Second class is to change the Fe-riched phase speed of growth, such as B, RE, Sr, Ca, melt treatment, casting
Technique is made, the transformation that can not only realize the opposite α-Fe of β-Fe is combined using two class methods, moreover it is possible to refine α-Fe sizes, change
Kind best results, wherein it is not only easy to operate using the method for the compound addition of two dvielements, and alloying component is easy to control, application
Prospect is preferable.
The Chinese patent of Publication No. CN106319275A discloses a kind of Fe-riched phase alterant and Modification Manners.Alterant
It is made of [Mn] agent and [B] agent, which can not only completely eliminate the presence of needle-shaped Fe-riched phase and nascent iron phase, obtain equal
Even Chinese character shape Fe-riched phase, and the mechanical property and processing performance of secondary aluminium can be significantly improved.[model surpasses document, Long Siyuan, Wu
Bright to put, Yang Huai moral cerium-rich mischmetals are to influence [J] the Rare Metals Materials and work of regeneration alusil alloy tissue and performance
Journey, 2014,43 (12):3073-3077.] it reports the compound additions of Mn/RE and can refine α-Fe phases, elongation percentage is up to 10.1%.
Above two method employs the method for two class alloying elements of stepped combined addition to improve the form of Fe-riched phase, and achieve
Good modification effect.Alterant wherein disclosed in CN106319275A is made of [Mn] agent and [B] agent, wherein [Mn] agent is
Al-Mn intermediate alloys or by one or both of Al-Mn intermediate alloys and Al-Cr intermediate alloys, Al-Co intermediate alloys group
Into, and [B] agent is Al-B intermediate alloys or KBF4.Since the intermediate alloy manufacturing cost of [Mn] agent He [B] agent is relatively high, and
Dosage is larger when being separately added into, and further increases rotten cost.Meanwhile two impurity contents in class intermediate alloy may
It has differences, this requires impurity element relatively low al alloy component control difficulty increase, multiple this further restricts substep
Close the application of addition [Mn] agent and [B] agent.Therefore, a kind of simple for process, low-cost aluminium-manganese-boron ternary Fe-riched phase of exploitation
Alterant and preparation method are very necessary.
Invention content
It is above-mentioned there are problem and shortage it is an object of the invention to be directed to, a kind of low cost, easy to operate is provided, can be improved
Fe-riched phase form, eliminate gill shape Fe-riched phase, improve the tensile strength of alloy and aluminium-manganese-boron intermediate alloy of elongation percentage and its
Preparation method.
The technical proposal of the invention is realized in this way：
Aluminium-manganese-boron intermediate alloy of the present invention, its main feature is that the intermediate alloy by following mass percent into being grouped as：
Al 60.6~95.1%, Mn 4.5~36.0%, B 0.1~3.0%, Fe≤0.15%, Si≤0.10%, remaining impurity element≤
0.15%。
Moreover, the intermediate alloy use Mn mass fractions for 5~40% Al-Mn intermediate alloys, B mass fractions be 3~
The commercial-purity aluminium that 10% Al-B intermediate alloys and purity is 99.5% is as raw material.
The preparation method of aluminium-manganese-boron intermediate alloy of the present invention, its main feature is that including the following steps：
（1）Al-Mn intermediate alloys and commercial-purity aluminium that Mn mass fractions are 5~40% are placed in intermediate frequency furnace after being heated to 500 DEG C
Heat preservation 60 minutes, then it is warming up to 800~950 DEG C；
（2）After Al-Mn intermediate alloys are completely melt, 750~900 DEG C are cooled to, it is 3~10% then to add in B mass fractions
Al-B intermediate alloys；
（3）After Al-B intermediate alloys are completely melt, refining, heat preservation stands 30~casting ingot-forming after sixty minutes, obtains aluminium-manganese-boron
Intermediate alloy.
Compared with prior art, the present invention it has the following advantages：
The present invention is based on two class alloying elements of compound addition to improve Fe-riched phase form ameliorative way, prepares Fe-riched phase alterant：Aluminium-
Manganese-boron ternary intermediate alloy.The alterant contains active ingredient：Manganese and boron element, wherein manganese element can be replaced in Fe-riched phase
Ferro element, change Fe-riched phase dominant growth orientation, so as to eliminate acicular beta-Fe phases, while boron element can reduce Fe-riched phase
Formation temperature, growth time and the growing space of primary Fe-rich phase are reduced, and a kind of surface active element can be used as, in richness
Iron phase formation initial stage is adsorbed on Fe-riched phase surface, inhibits growing up for Fe-riched phase.Therefore, made using aluminium-manganese-boron ternary intermediate alloy
For Fe-riched phase alterant, the presence of needle-shaped Fe-riched phase and nascent iron phase can be not only completely eliminated, it is rich to obtain uniform Chinese character shape
Iron phase, but also the intermediate alloy total amount of adding of stepped combined addition Mn agent and B agent can be greatly reduced, while reduce technique ring
Section is conducive to control alloying component, more suitable for industrialized production.
Specific embodiment
Embodiment 1：
（1）Raw material is weighed for 70%Al-Mn intermediate alloys, 10%Al-B intermediate alloys and 20% commercial-purity aluminium by mass fraction, wherein
The mass percentage content that the mass percentage content of Mn is B in 40%, Al-B intermediate alloys in Al-Mn intermediate alloys is 10%,
The purity of commercial-purity aluminium is 99.5%；
（2）Al-Mn intermediate alloys and commercial-purity aluminium are placed in intermediate frequency furnace after being heated to 500 DEG C and keep the temperature 60 minutes, then be warming up to
950℃；
（3）After Al-Mn intermediate alloys are completely melt, 900 DEG C are cooled to, then adds in Al-B intermediate alloys；
（4）After Al-B intermediate alloys are completely melt, refining, casting ingot-forming after heat preservation stands 30 minutes is obtained among aluminium-manganese-boron
Alloy；
（5）Test aluminium-manganese-boron master alloy chemistries.
Embodiment 2：
（1）Raw material is weighed for 70%Al-Mn intermediate alloys, 20%Al-B intermediate alloys and 10% commercial-purity aluminium by mass fraction, wherein
The mass percentage content that the mass percentage content of Mn is B in 20%, Al-B intermediate alloys in Al-Mn intermediate alloys is 8%, work
The purity of industry fine aluminium is 99.5%；
（2）Al-Mn intermediate alloys and commercial-purity aluminium are placed in intermediate frequency furnace after being heated to 500 DEG C and keep the temperature 60 minutes, then be warming up to
900℃；
（3）After Al-Mn intermediate alloys are completely melt, 850 DEG C are cooled to, then adds in Al-B intermediate alloys；
（4）After Al-B intermediate alloys are completely melt, refining, casting ingot-forming after heat preservation stands 30 minutes is obtained among aluminium-manganese-boron
Alloy；
（5）Test aluminium-manganese-boron master alloy chemistries.
Embodiment 3：
（1）Raw material is weighed for 75%Al-Mn intermediate alloys, 15%Al-B intermediate alloys and 10% commercial-purity aluminium by mass fraction, wherein
The mass percentage content that the mass percentage content of Mn is B in 10%, Al-B intermediate alloys in Al-Mn intermediate alloys is 5%, work
The purity of industry fine aluminium is 99.5%；
（2）Al-Mn intermediate alloys and commercial-purity aluminium are placed in intermediate frequency furnace after being heated to 500 DEG C and keep the temperature 60 minutes, then be warming up to
850℃；
（3）After Al-Mn intermediate alloys are completely melt, 800 DEG C are cooled to, then adds in Al-B intermediate alloys；
（4）After Al-B intermediate alloys are completely melt, refining, casting ingot-forming after heat preservation stands 30 minutes is obtained among aluminium-manganese-boron
Alloy；
（5）Test aluminium-manganese-boron master alloy chemistries.
Embodiment 4：
（1）Raw material is weighed for 90%Al-Mn intermediate alloys, 5%Al-B intermediate alloys and 5% commercial-purity aluminium by mass fraction, wherein
The mass percentage content that the mass percentage content of Mn is B in 5%, Al-B intermediate alloys in Al-Mn intermediate alloys is 3%, work
The purity of industry fine aluminium is 99.5%；
（2）Al-Mn intermediate alloys and commercial-purity aluminium are placed in intermediate frequency furnace after being heated to 500 DEG C and keep the temperature 60 minutes, then be warming up to
800℃；
（3）After Al-Mn intermediate alloys are completely melt, 750 DEG C are cooled to, then adds in Al-B intermediate alloys；
（4）After Al-B intermediate alloys are completely melt, refining, casting ingot-forming after heat preservation stands 30 minutes is obtained among aluminium-manganese-boron
Alloy；
（5）Test aluminium-manganese-boron master alloy chemistries.
The chemical composition comparison of Examples 1 to 4 aluminium-manganese-boron intermediate alloy is shown in Table 1.
The chemical composition of aluminium-manganese-boron intermediate alloy in 1 Examples 1 to 4 of table（wt.%）
The present invention is described by embodiment, but is not limited the invention, disclosed with reference to description of the invention
Embodiment other variation, such as the professional person of this field is readily apparent that, such variation should belong to this hair
Within the scope of bright claim limits.
Claims (3)
1. a kind of aluminium-manganese-boron intermediate alloy, it is characterised in that the intermediate alloy is by following mass percent into being grouped as：Al
60.6~95.1%, Mn 4.5~36.0%, B 0.1~3.0%, Fe≤0.15%, Si≤0.10%, remaining impurity element≤
0.15%。
2. aluminium-manganese-boron intermediate alloy according to claim 1, it is characterised in that the intermediate alloy uses Mn mass fractions
The industry that the Al-B intermediate alloys and purity that Al-Mn intermediate alloys, B mass fractions for 5~40% are 3~10% are 99.5%
Fine aluminium is as raw material.
3. a kind of preparation method of aluminium-manganese-boron intermediate alloy, this method are used to prepare intermediate alloy as described in claim 1,
Characterized by the following steps：
（1）Al-Mn intermediate alloys and commercial-purity aluminium that Mn mass fractions are 5~40% are placed in intermediate frequency furnace after being heated to 500 DEG C
Heat preservation 60 minutes, then it is warming up to 800~950 DEG C；
（2）After Al-Mn intermediate alloys are completely melt, 750~900 DEG C are cooled to, it is 3~10% then to add in B mass fractions
Al-B intermediate alloys；
（3）After Al-B intermediate alloys are completely melt, refining, heat preservation stands 30~casting ingot-forming after sixty minutes, obtains aluminium-manganese-boron
Intermediate alloy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810055341.7A CN108193063A (en) | 2018-01-19 | 2018-01-19 | A kind of aluminium-manganese-boron intermediate alloy and preparation method thereof |
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| CN201810055341.7A CN108193063A (en) | 2018-01-19 | 2018-01-19 | A kind of aluminium-manganese-boron intermediate alloy and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116516203A (en) * | 2023-04-06 | 2023-08-01 | 合肥工业大学 | Aluminum alloy iron remover and Al-Si alloy iron removal process |
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| CN101117670A (en) * | 2007-07-20 | 2008-02-06 | 山东山大吕美熔体技术有限公司 | Method for preparing aluminium-titanium-carbon master alloy |
| CN103572080A (en) * | 2013-11-07 | 2014-02-12 | 广州有色金属研究院 | Deironing method for secondary aluminum |
| CN106319275A (en) * | 2016-10-24 | 2017-01-11 | 广东省材料与加工研究所 | Alterant of iron-rich phase in secondary aluminum and alteration method |
| CN107385257A (en) * | 2017-06-15 | 2017-11-24 | 中北大学 | A kind of rotten method of secondary aluminium alloy Fe-riched phase |
| CN107488794A (en) * | 2017-02-17 | 2017-12-19 | 南京理工大学 | A kind of aluminium cobalt titanium carbon intermediate alloy and preparation method thereof |
-
2018
- 2018-01-19 CN CN201810055341.7A patent/CN108193063A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117670A (en) * | 2007-07-20 | 2008-02-06 | 山东山大吕美熔体技术有限公司 | Method for preparing aluminium-titanium-carbon master alloy |
| CN103572080A (en) * | 2013-11-07 | 2014-02-12 | 广州有色金属研究院 | Deironing method for secondary aluminum |
| CN106319275A (en) * | 2016-10-24 | 2017-01-11 | 广东省材料与加工研究所 | Alterant of iron-rich phase in secondary aluminum and alteration method |
| CN107488794A (en) * | 2017-02-17 | 2017-12-19 | 南京理工大学 | A kind of aluminium cobalt titanium carbon intermediate alloy and preparation method thereof |
| CN107385257A (en) * | 2017-06-15 | 2017-11-24 | 中北大学 | A kind of rotten method of secondary aluminium alloy Fe-riched phase |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116516203A (en) * | 2023-04-06 | 2023-08-01 | 合肥工业大学 | Aluminum alloy iron remover and Al-Si alloy iron removal process |
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Application publication date: 20180622 |