CN105401014B - A kind of 4032 aluminium alloy smelting methods - Google Patents
A kind of 4032 aluminium alloy smelting methods Download PDFInfo
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- CN105401014B CN105401014B CN201510957817.2A CN201510957817A CN105401014B CN 105401014 B CN105401014 B CN 105401014B CN 201510957817 A CN201510957817 A CN 201510957817A CN 105401014 B CN105401014 B CN 105401014B
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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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon 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
- 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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Abstract
The invention discloses a kind of 4032 aluminium alloy smelting method, including step：1) by metallic silicon fire box temperature be 200 DEG C~300 DEG C when spreading in furnace bottom；2) press each element mass percent in 4032 aluminium alloys and add aluminium ingot and other metals；3) heat up melting；4) stir melt and skim；5) modifying-refining is handled；6) sample, adjust composition；7) refine and stand；8) melt is filtered, degasification and micronization processes；9) cast form；As can be seen here, above-mentioned method of smelting, when burner hearth is in low-temperature condition, first in furnace bottom spreading layer of metal silicon, the melting that heated up after other elements is added, relative to prior art, smelting temperature is low, technique controlling difficulty and energy consumption can be reduced, iron loss and equipment loss are reduced, by primary silicon size and crystallite dimension control in relatively stable scope, simultaneously, because metallic silicon is relatively low relative to aluminium silicon intermediate alloy cost, production cost can be effectively reduced.
Description
Technical field
The present invention relates to aluminum alloy melt casting technical field, more particularly to a kind of 4032 aluminium alloy smelting method.
Background technology
4032 aluminium alloys are high (alreading exceed eutectic point) due to Si contents, melting and the improper very easy generation of modification process
A large amount of thick primary silicons, while with coarse grains, Eutectic Silicon in Al-Si Cast Alloys is also possible to that needle-like is presented, and above tissue signature has a strong impact on conjunction
Golden performance, especially plasticity.
In the prior art, high-silicon alloy, which introduces element silicon, mainly two ways, and one is to add metallic silicon at high temperature, and two
It is to add aluminium silicon intermediate alloy with stove, it is then corresponding to carry out Metamorphism treatment, wherein, high temperature adds the mode of metallic silicon to there is energy consumption
Height, iron loss is big, and equipment loss is big, and primary silicon size and crystallite dimension are unstable, and technology controlling and process has certain difficulty, and
The mode of aluminium silicon intermediate alloy is added with stove, because the cost of raw material is higher, smelting time is long, production efficiency can be substantially reduced,
Increase production cost.
Therefore, how a kind of 4032 aluminium alloy smelting method is provided, energy consumption can be reduced, reduce iron loss and
Equipment loss, while production cost is reduced, as those skilled in the art's important technological problems urgently to be resolved hurrily.
The content of the invention
In view of this, the invention provides a kind of 4032 aluminium alloy smelting method, energy consumption can be reduced to reach, is subtracted
Few iron loss and equipment loss, while reducing the purpose of production cost.
To achieve the above object, the present invention provides following technical scheme：
A kind of 4032 aluminium alloy smelting methods, including step：
1) by metallic silicon fire box temperature be 200 DEG C~300 DEG C when spreading in furnace bottom；
2) press each element mass percent in 4032 aluminium alloys and add aluminium ingot and simple substance or the middle conjunction of other metals
Gold；
3) heat up melting；
4) after furnace charge is completely melt, stir melt and skim；
5) alterant is added into melt, modifying-refining processing is carried out；
6) sample, and composition is adjusted according to above-mentioned mass percent according to sampling result；
7) melt is refined and stood；
8) melt is filtered, degasification and micronization processes；
9) cast form.
It is preferred that, in the step 2) in, added by following mass percents：4.0%~14.0%Si, 0.1%~
0.9%Fe, 0.05%~1.8%Cu, 0.02%~0.3%Mn, 0.3%~2.0%Mg, 0.005%~0.06%Sn,
0.02%~0.165%Cr, 0.045%~1.3%Ni, 0.03%~0.3%Zn, 0.02%~0.2%Ti, 0.01%~
0.1%Pb, 0.0015%~0.01%Na and surplus are Al.
It is preferred that, the step 3) in, melt temperature is no more than 760 DEG C.
It is preferred that, the alterant includes Al-B intermediate alloys, Al-Sr intermediate alloys and Al-Ti-B intermediate alloys.
It is preferred that, the step 7) in carry out stewing process temperature be 740 DEG C~750 DEG C.
It is preferred that, the step 7) be specially：
71) refining treatment is carried out to melt using refining agent, refining treatment claws surface scum after terminating；
72) stewing process is carried out to the melt Jing Guo refining treatment at a temperature of 740 DEG C~750 DEG C.
It is preferred that, in the step 9) Ageing Treatment is carried out to the ingot casting of shaping afterwards.
It can be seen from the above technical proposal that the invention provides a kind of 4032 aluminium alloy smelting method, including step：1)
By metallic silicon fire box temperature be 200 DEG C~300 DEG C when spreading in furnace bottom；2) each element mass percent in 4032 aluminium alloys is pressed
Add aluminium ingot and the simple substance or intermediate alloy of other metals；3) heat up melting；4) after furnace charge is completely melt, melt is stirred
And skim；5) alterant is added into melt, modifying-refining processing is carried out；6) sample, and above-mentioned matter is contrasted according to sampling result
Measure percentage adjustment composition；7) melt is refined and stood；8) melt is filtered, degasification and micronization processes；
9) cast form；As can be seen here, 4032 aluminium alloy smelting methods in this programme, when burner hearth is in low-temperature condition, exist first
Furnace bottom spreading layer of metal silicon, adds the melting that heated up after other elements, and relative to prior art, smelting temperature is low, can drop
Low technique controlling difficulty and energy consumption, reduce iron loss and equipment loss, and primary silicon size and crystallite dimension control are existed
In relatively stable scope, simultaneously as metallic silicon is relatively low relative to aluminium silicon intermediate alloy cost, production can be effectively reduced
Cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart of 4032 aluminium alloy smelting method provided in an embodiment of the present invention.
Embodiment
The invention provides a kind of 4032 aluminium alloy smelting method, energy consumption can be reduced to reach, metal is reduced and burns
Damage and equipment loss, while reducing the purpose of production cost.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is the flow chart of 4032 aluminium alloy smelting method provided in an embodiment of the present invention.
The embodiments of the invention provide a kind of 4032 aluminium alloy smelting method, including step：
S1：By metallic silicon fire box temperature be 200 DEG C~300 DEG C when spreading in furnace bottom；
S2：Aluminium ingot and simple substance or the middle conjunction of other metals are added by each metal quality percentage in 4032 aluminium alloys
Gold；
S3：Heat up melting；
S4：After furnace charge is completely melt, stirs melt and skim；
S5：Alterant is added into melt, modifying-refining processing is carried out；
S6：Sampling, and composition is adjusted according to above-mentioned mass percent according to sampling result；
S7：Melt is refined and stood；
S8：Melt is filtered, degasification and micronization processes；
S9：Cast form.
Compared with prior art, 4032 aluminium alloy smelting method provided in an embodiment of the present invention, low temperature shape is in burner hearth
During state, first in furnace bottom spreading layer of metal silicon, the melting that heated up after other elements is added, relative to prior art, melting temperature
Degree is low, can reduce technique controlling difficulty and energy consumption, iron loss and equipment loss is reduced, by primary silicon size and crystal grain
Size Control is in relatively stable scope, simultaneously as metallic silicon is relatively low relative to aluminium silicon intermediate alloy cost, can be effective
Reduction production cost.
In the step S2 of the embodiment of the present invention, added by following mass percents：4.0%~14.0%Si, 0.1%~
0.9%Fe, 0.05%~1.8%Cu, 0.02%~0.3%Mn, 0.3%~2.0%Mg, 0.005%~0.06%Sn,
0.02%~0.165%Cr, 0.045%~1.3%Ni, 0.03%~0.3%Zn, 0.02%~0.2%Ti, 0.01%~
0.1%Pb, 0.0015%~0.01%Na and surplus are Al, wherein, the metal needs such as copper, magnesium, nickel will be added by intermediate alloy
Plus, copper, nickel fusing point it is higher, directly add, fusing be difficult, and the fusing point of magnesium is relatively low, easily when other metal is also unfused
Just reach fluidized state, so be also required to add by intermediate alloy, in addition to three kinds of above-mentioned metals, other metals according to
Self property is added in the form of simple substance form or intermediate alloy.
In order to realize while alloy melting quality is ensured, reduction energy consumption is reached, iron loss is reduced and equipment is damaged
Consumption, in the step S3 of the embodiment of the present invention, melt temperature be no more than 760 DEG C, by by melt temperature control 760 DEG C with
It is interior, being normally carried out for alloy melting is ensure that, and energy consumption can be reduced, reduce iron loss and equipment loss.
Alterant be it is a kind of be used for crystal grain thinning and improve tissue to improve the material of material property, in the embodiment of the present invention
In, the alterant used includes Al-B intermediate alloys, Al-Sr intermediate alloys and Al-Ti-B intermediate alloys, wherein, in Al-B
Between alloy and Al-Ti-B intermediate alloys can crystal grain thinning, and Al-Sr intermediate alloys can refining eutectic silicon, pass through above-mentioned change
Using cooperatively for matter agent, can effectively improve the performance of 4032 aluminium alloys.
Stewing process needs to carry out below burnt temperature, therefore, in embodiments of the present invention, stewing process in step S7
Temperature be 740 DEG C~750 DEG C.
In order to further optimize above-mentioned technical proposal, in embodiments of the present invention, step S7 is specially：
S71：Refining treatment is carried out to melt using refining agent, refining treatment claws surface scum after terminating；
S72：Stewing process is carried out to the melt Jing Guo refining treatment at a temperature of 740 DEG C~750 DEG C.
Wherein, refining agent is mainly used for the hydrogen removed inside melt and the oxide slag inclusion swum, plays certain scarfing cinder
Effect.
It is preferred that, in embodiments of the present invention, Ageing Treatment is carried out to the ingot casting of shaping after step S9.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (6)
1. a kind of 4032 aluminium alloy smelting method, it is characterised in that including step：
1) by metallic silicon fire box temperature be 200 DEG C~300 DEG C when spreading in furnace bottom；
2) press each element mass percent in 4032 aluminium alloys and add aluminium ingot and the simple substance or intermediate alloy of other metals, press
Following mass percent additions：4.0%~14.0%Si, 0.1%~0.9%Fe, 0.05%~1.8%Cu, 0.02%~
0.3%Mn, 0.3%~2.0%Mg, 0.005%~0.06%Sn, 0.02%~0.165%Cr, 0.045%~1.3%Ni,
0.03%~0.3%Zn, 0.02%~0.2%Ti, 0.01%~0.1%Pb, 0.0015%~0.01%Na and surplus are Al,
Wherein, Cu, Mg, Ni are added by intermediate alloy；
3) heat up melting；
4) after furnace charge is completely melt, stir melt and skim；
5) alterant is added into melt, modifying-refining processing is carried out；
6) sample, and composition is adjusted according to above-mentioned mass percent according to sampling result；
7) melt is refined and stood；
8) melt is filtered, degasification and micronization processes；
9) cast form.
2. 4032 aluminium alloy smelting method according to claim 1, it is characterised in that the step 3) in, melt temperature
No more than 760 DEG C.
3. 4032 aluminium alloy smelting method according to claim 1, it is characterised in that the alterant is included in the middle of Al-B
Alloy, Al-Sr intermediate alloys and Al-Ti-B intermediate alloys.
4. 4032 aluminium alloy smelting method according to claim 1, it is characterised in that the step 7) in carry out at standing
The temperature of reason is 740 DEG C~750 DEG C.
5. 4032 aluminium alloy smelting method according to claim 4, it is characterised in that the step 7) be specially：
71) refining treatment is carried out to melt using refining agent, refining treatment claws surface scum after terminating；
72) stewing process is carried out to the melt Jing Guo refining treatment at a temperature of 740 DEG C~750 DEG C.
6. 4032 aluminium alloy smelting method according to claim 1, it is characterised in that in the step 9) afterwards to shaping
Ingot casting carry out Ageing Treatment.
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| CN106367638A (en) * | 2016-08-28 | 2017-02-01 | 广州华车科技有限公司 | Automotive alloy and manufacturing method thereof |
| CN107164663B (en) * | 2017-04-25 | 2019-02-01 | 浙江音诺伟森热能科技有限公司 | A kind of condensation combustion gas cast aluminium boiler heat exchanger highly corrosion resistant aluminium alloy |
| CN107460352B (en) * | 2017-08-09 | 2019-02-19 | 江苏亚太轻合金科技股份有限公司 | A kind of silumin Modification Manners |
| CN112680610A (en) * | 2020-11-25 | 2021-04-20 | 陕西大秦铝业有限责任公司 | Method for adding instant silicon in aluminum alloy smelting process and aluminum alloy smelting |
| CN114101689B (en) * | 2021-11-15 | 2023-11-03 | 河北新立中有色金属集团有限公司 | Method for controlling fluidity and purity of high-silicon aluminum alloy melt for gas atomization powder preparation |
| CN115961164A (en) * | 2022-08-30 | 2023-04-14 | 湖南中创空天新材料股份有限公司 | Preparation method of 4032 aluminum alloy |
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| JP5160930B2 (en) * | 2008-03-25 | 2013-03-13 | 株式会社神戸製鋼所 | Aluminum alloy extruded material excellent in bending crushability and corrosion resistance and method for producing the same |
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