CN106676346A - Aluminum alloy material capable of being anodized and suitable for semi-solid forming and preparing method of aluminum alloy material - Google Patents
Aluminum alloy material capable of being anodized and suitable for semi-solid forming and preparing method of aluminum alloy material Download PDFInfo
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- CN106676346A CN106676346A CN201710039484.4A CN201710039484A CN106676346A CN 106676346 A CN106676346 A CN 106676346A CN 201710039484 A CN201710039484 A CN 201710039484A CN 106676346 A CN106676346 A CN 106676346A
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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
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/007—Semi-solid pressure die casting
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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
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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Abstract
The invention provides an aluminum alloy material capable of being anodized and suitable for semi-solid forming and a preparing method of the aluminum alloy material. The aluminum alloy is composed of the following elements including Mg, Si, Zn, Sc, Zr, Mn and the balance Al and inevitable impurity elements. The preparing method includes the following steps that an aluminum alloy melt is prepared through the preparing method for the aluminum alloy material; the aluminum alloy melt is stirred under the temperature of 720 DEG C to 730 DEG C and then is subjected to standing, refining gas removing and slag removing are conducted under the temperature of 710 DEG C to 720 DEG C, then heat insulation is conducted under the temperature of 650 DEG C to 670 DEG C after standing is conducted again, and molten aluminum alloy is obtained; the molten aluminum alloy is put into a semi-solid electromagnetic stirring device to be subjected to electromagnetic stirring, and then semi-solid slurry is obtained; and the semi-solid slurry is subjected to pressure casting or extrusion casting forming, and the aluminum alloy material is obtained. The prepared aluminum alloy capable of being anodized and suitable for semi-solid forming is high in thixotropy in a semi-solid state, the processing process is easy to control, the semi-solid forming performance is good, meanwhile, no air holes or cracks or the like exist in formed thin-wall parts, and the yield is high.
Description
Technical field
The present invention relates to a kind of anodic oxidation and can be adapted to aluminum alloy materials and preparation method thereof of semi-solid-state shaping, belong to
Aluminum alloy materials technical field.
Background technology
As the electronic products such as the fast development of communications industry, computer, mobile phone apply more next in the Working Life of people
More universal, the outward appearance of metal-like is favored by many people.Aluminium alloy is due to high with specific strength, and heat conductivity and corrosion stability are excellent
Good, good and attractive in appearance etc. the advantage of formability has evolved into the most widely used metal material on electronic product casing structural member.
The research and development and industrialized development of aluminum alloy casing thin-wall part in recent years receive much concern, and liquid die casting, die forging are still main production
Mode, but the quality and processing problems of its presence do not allow avoidance.Find have aluminum alloy casing to be easily bent in use, intensity is not
Enough height, and stock utilization is low in forming process, machining cost is high, long the production cycle, and most pack alloy sun
Pole oxidation susceptibility is poor, and coloring effect is bad, and color is single.
Semi-solid-state shaping is will to be directly processed into containing the dispersed semi solid slurry in the liquid phase of spherical nascent solid phase
The method of type, semi solid slurry has thixotropy, thus good mobility is shown in high speed injection process, while molding
During solidification shrinkage it is little, be capable of achieving near-net-shape, the mechanical castings with non-dendritic structure for ultimately forming approach
Forging.Traditional pack alloy is unsuitable for semi-solid-state shaping with wrought aluminium alloy.The general Si contents of traditional pack alloy compared with
Height, good fluidity, but mechanical property is not high, and anodic oxidation poor performance.Although wrought aluminium alloy intensity is high, mold-filling capacity
It is low, hot tearing is also easy to produce during casting forming, and for semi-solid-state shaping, its major defect is that semi-solid temperature interval is narrow, temperature
Control is difficult, and profiled member easily produces defect.Therefore exploitation can anodised suitable semi-solid-state shaping aluminium alloy, be allowed to possess
High intensity, good anodic oxidation and semi-solid-state shaping performance, realize aluminium alloy further development on shell thin-wall part
Urgent approach.
Jing is retrieved, the Chinese invention patent of Publication No. 104213002A, and the invention is related to a kind of oxidable die casting containing scandium
Aluminium alloy, preparation method and structural member, wherein：" aluminium alloy have by mass 1%~2% Mn, 1%~2% Ni,
1%~3% Zn, 0.8%~2% Mg, 0.05%~0.3% Sc, 0.05%~0.2% Zr, 90%~95%
Al, Fe, Si impurity less than 0.15%." invention is characterised by：" using alloying element rather than Si elements such as Mn, Ni, Sc,
Die casting performance and can all good effect of anodic oxidation performance can be reached；It is preferred that add the Zn of a certain amount of proportioning, Mg elements, especially
It is 2%~5% and Zn by the total content of Zn and Mg：Proportionings of the Mg 1.5~2.5, can ensure preferable casting character
On the basis of, significantly improve alloy strength." invention a kind of preferred embodiment in, aluminium alloy contain by mass 1% Mn,
1% Ni, 2.5% Zn, 1.2% Mg, 0.1% Sc, 0.15% Zr, its tensile strength reaches 328Mpa, surrenders pole
251Mpa is limited to, elongation percentage is 5%, die casting performance and anodic oxidation are good.The shortcoming of the inventive technique is：It is not added with
Si elements, though anodic oxidation can be improved, fluidity of alloy melt is low, and press casting procedure is wayward；Addition Sc elements
It is on the low side, for Aluminum alloy modification acts on little, in terms of mechanical property is improved optimal contributing effect is not had；Zn elements if it exceeds
2.0wt%, hot cracking tendency is larger；Additionally, obtaining organizing not fine and close enough using liquid die casting mode, pore is also easy to produce.
Also find that the Chinese invention patent of Publication No. 105568083A the invention provides one kind and be applied in retrieval
High-strength/tenacity aluminum alloy material of semi-solid rheological die casting and preparation method thereof, wherein " alloying component is：Si：5~6%,
Cu：0.8~1.2%, Mg：0.8~1.2%, Mn：0.3~0.5%, Ce：0.2~0.3%, Ti：0.15~0.3%, Sr：
0.02~0.06%, Fe≤0.15%, other are inevitable impurity element, and impurity element summation≤0.2% is balance of
Aluminum." preparation method characteristic of alloy material is：" including through getting the raw materials ready, melting, refine, then by the temperature of molten aluminium alloy
It is down to 650~670 DEG C and is incubated, come out of the stove, semi solid slurry is prepared using the method for permanent magnetic stirring, when slurry temperature reaches 605
When~615 DEG C, the oxide skin on surface is chosen remove immediately, pouring pressure chamber into immediately after carries out die casting, finally T6 is carried out to foundry goods hot
Process." aluminum alloy materials mechanical performance obtained in the invention is higher, tensile strength is 350~400Mpa, and elongation after fracture is 8
~15%, and it is adapted for rheo-diecasting.The shortcoming of the inventive technique is：Si too high levels in alloy, in oxidizing process
Middle silicon ion Jing is often present in electrolyte with suspended state, and to anodic oxidation effect very negative impact is produced；Slurry temperature
Die casting is carried out when reaching 605~615 DEG C, belongs to high solid fraction shaping, for shaping thin shell piece, its mold-filling capacity is relatively inaccessible to will
Ask, easily defective generation.
Semi-solid state forming technique is a kind of processing method for having very much a potentiality, and the application on processing shell thin-wall part at present is also
Considerably less, a key issue is just a lack of applicable aluminum alloy materials, it is impossible to reaches in the case where high intensity is ensured, has
Good anodic oxidation and semi-solid-state shaping performance.
The content of the invention
It is contemplated that exploitation one kind can anodised suitable semi-solid-state shaping aluminium alloy, and propose its preparation method.
Designed alloying component mainly includes six kinds of alloy elements of Mg, Si, Zn, Sc, Zr and Mn, by melting, insulation and electromagnetism
Stirring technique prepares semi-solid alloy slurry, and semi solid slurry is obtained aluminum alloy thin immediately by die casting or squeeze cast form
Wall pieces, the alloy anode oxidation is good with semi-solid-state shaping performance, and tensile strength reaches 280Mpa, and yield strength is more than 200Mpa, prolongs
Rate is stretched more than 6%.
The present invention is achieved by the following technical solutions：
In a first aspect, the invention provides one kind can anodised aluminum alloy materials, it is by according to mass percentage
It is following elementary composition：
Mg：0.5~0.8%, Si：0.1~0.3%, Zn：1.2~1.5%, Sc：0.2~0.4%, Zr：0.1~
0.2%, Mn：0.5~1.0wt%, balance of Al and inevitable impurity element, the impurity content is less than
0.1%.
Preferably, the mass percent sum of the Mg and Zn is 2.0%, and the mass percent of Zn is with Mg's
The ratio of mass percent is less than 2.5:1；The mass percent of the Zr is the 1/2 of the mass percent of Sc.
The principle of the weight proportion of each element is as follows in the aluminium alloy of the present invention：
1st, the total content of Mg and Zn is controlled in 2.0wt% or so, and mass ratio Zn：During Mg≤2.5, the thixotropy of alloy is obtained
To optimization, and be conducive to forming hardening constituent MgZn2 in alloy, obvious invigoration effect is produced to alloy.If however, the content of Zn
More than 1.5wt%, one side hot cracking tendency becomes big, on the other hand reduces thixotropy, is unfavorable for semi-solid alloy casting forming.
2nd, Sc is the alloy element maximally efficient to aluminium alloy for being found so far, selects to be added in aluminum melt
The Sc elements of 0.3wt% or so, it is ensured that Sc produces strong metamorphism to aluminium alloy, contributes to semi solid slurry and prepared
The formation of spherical nascent solid phase in journey.However, if the content of Sc is less than 0.2wt%, addition is less to be changed to alloy mechanical property
Kind effect is little；If the content of Sc continues to increase on 0.4wt%, its modifying function improves little.
3rd, the compound addition of Zr and Sc elements, can form coherence second phase particles with Al, become the core of crystallization, close aluminum
After Jin Jing's grain is significantly refined, and about the Zr of the 1/2 of Sc contents is added, the Al of formation3(Sc1-XZrX) precipitated phase granularity will
Compare Al3Sc is little, that is, have more Al3(Sc1-XZrX) particle precipitation, the increase of alloy strengthening effect is significant.
4th, Mn elements are added, the recrystallization temperature that can make alloy is improved, and puies forward heavy alloyed corrosion resistance and intensity, it is ensured that
Alloy has higher stability；Another effect is energy dissolved impurity ferrum, reduces the adverse effect of ferrum.But the content of Mn elements is more
When 1.0wt%, alloy plasticity can be caused to decline；It is too little to eliminating Fe element interactions during less than 0.3wt%.
Second aspect, present invention also offers it is a kind of as the aforementioned can anodised aluminum alloy materials preparation method,
It comprises the steps：
Prepare aluminium alloy melt；
Stand after the aluminium alloy melt is stirred at 720~730 DEG C, carry out refine at 710~720 DEG C and remove
Gas, slagging-off, are incubated after standing again at 650~670 DEG C, obtain aluminium liquid；
The aluminium liquid is placed in semisolid electromagnetic mixing apparatus, after carrying out electromagnetic agitation, semi solid slurry is obtained；
The semi solid slurry is carried out into die casting or squeeze cast form, the aluminum alloy materials are obtained.
In semi-solid blank preparation technicses, 650~670 DEG C of holding temperature and the cooperation of 10~20s of electromagnetic agitation time are protected
The system alloy is demonstrate,proved before into die casting, the nodularization primary phase containing fine dispersion in its slurry, and reach 50~60%
Solid rate.If holding temperature is improved, need to extend electromagnetic agitation time lengthening, working (machining) efficiency is reduced, and Melt Stirring process
Middle temperature reducing rate is fast, wayward；If holding temperature is reduced, solidification trend is increased, and need to shorten the electromagnetic agitation time, it is impossible to
It is sufficiently formed the semi solid slurry containing spherical primary phase.
Preferably, the preparation method of the aluminium alloy melt is：
Purity is not less than after 99.9% aluminium ingot melted, pure magnesium ingot, pure zinc ingot, aluminum are added at 660~670 DEG C
Silicon intermediate alloy, scandium bearing master alloy, aluminium zirconium hardener and aluminum manganese intermediate alloy, in treating the pure magnesium ingot, pure zinc ingot, aluminum silicon
Between alloy, scandium bearing master alloy, aluminium zirconium hardener and aluminum manganese intermediate alloy fusing, obtain aluminium alloy melt.
Preferably, the time of the electromagnetic agitation is 10~20s.
Preferably, the injection speed of the die casting or extrusion casint is 1.5~4m/s.
Used as further preferred scheme, the injection speed is 2~3m/s.
Preferably, the solid phase mass fraction for carrying out die casting or the semi solid slurry before extrusion casint is 50~
60%.
Preferably, the holding temperature of the aluminum alloy melt is 655 DEG C.
Compared with prior art, the present invention has following beneficial effect：
1st, the present invention prepare can anodised suitable semi-solid-state shaping aluminium alloy, thixotropy is high under semisolid, plus
Work process is easily controllable, and semi-solid-state shaping performance is good, while the forming thin-walled part pore-free of institute, crackle etc., high yield rate；
2nd, the present invention prepare suitable semi-solid-state shaping aluminium alloy can anodic oxidation it is functional, can after anodic oxidation
Dyeing multiple color, uniform color, appearance looks elegant；
3rd, the present invention prepare can anodised suitable semi-solid-state shaping Mechanical Properties of Aluminum Alloys it is excellent, tensile strength reaches
280Mpa, yield strength is more than 200Mpa, and elongation percentage is more than 6%, realizes high intensity, good anodic oxidation and semi-solid-state shaping
The combination of performance.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some deformations and improvement can also be made.These belong to the present invention
Protection domain.
Embodiment 1
The component of the aluminum alloy materials is by mass percentage：Mg0.7wt%, Si0.2wt%, Zn1.4wt%,
Sc0.3wt%, Zr0.15wt%, Mn0.8wt%, other impurities constituent content≤0.1wt%, remaining is aluminum Al.
After being got the raw materials ready and dried by component, the aluminium ingot of purity >=99.9% is placed in smelting furnace and is melted, temperature of aluminum liquid is 660
DEG C~670 DEG C, pure Mg ingots, pure Zn ingots, Al-20%Si intermediate alloys, Al-2%Sc intermediate alloys, Al- are added in aluminum melt
5%Zr intermediate alloys, Al-10%Mn intermediate alloys, are warming up to 730 DEG C and are sufficiently stirred for after alloy melting, then stand
15min carries out refine degasification, slagging-off at 720 DEG C, after standing 20min, makes liquation be cooled to 655 DEG C, is incubated, and uses inner surface
The cylindrical shape soup ladle for brushing coating takes out required aluminium liquid, in being placed in semisolid electromagnetic mixing apparatus, after mixing time 15s, and system
Into semi solid slurry, the semi solid slurry of formation is transferred in extrusion casting machine barrel immediately after, carry out extrusion casint into
Type, makes the thin-wall part that thickness is 2mm, can pass through anodized poststaining.Its mechanical property is as shown in table 1.It can be seen that, should
The tensile strength of alloy reaches 289Mpa, and yield strength is 208Mpa, and elongation percentage is 6.2%, anodic oxidation and semi-solid-state shaping
Can be outstanding.
Embodiment 2
The component of the aluminum alloy materials is by mass percentage：Mg0.6wt%, Si0.2wt%, Zn1.2wt%,
Sc0.25wt%, Zr0.15wt%, Mn0.6wt%, other impurities constituent content≤0.1wt%, remaining is aluminum Al.
After being got the raw materials ready and dried by component, the aluminium ingot of purity >=99.9% is placed in smelting furnace and is melted, temperature of aluminum liquid is 660
DEG C~670 DEG C, pure Mg ingots, pure Zn ingots, Al-20%Si intermediate alloys, Al-2%Sc intermediate alloys, Al- are added in aluminum melt
5%Zr intermediate alloys, Al-10%Mn intermediate alloys, are warming up to 730 DEG C and are sufficiently stirred for after alloy melting, then stand
15min carries out refine degasification, slagging-off at 720 DEG C, after standing 20min, makes liquation be cooled to 655 DEG C, is incubated, and uses inner surface
The cylindrical shape soup ladle for brushing coating takes out required aluminium liquid, in being placed in semisolid electromagnetic mixing apparatus, after mixing time 15s, and system
Into semi solid slurry, the semi solid slurry of formation is transferred in extrusion casting machine barrel immediately after, carry out extrusion casint into
Type, makes the thin-wall part that thickness is 2mm, can pass through anodized poststaining.Its mechanical property is as shown in table 1.It can be seen that, should
The tensile strength of alloy reaches 283Mpa, and yield strength is 201Mpa, and elongation percentage is 7.0%, anodic oxidation and semi-solid-state shaping
Can be outstanding.
Comparative example 1
The component of the aluminum alloy materials is by mass percentage：Mg0.4wt%, Si0.2wt%, Zn1.5wt%,
Sc0.25wt%, Zr0.15wt%, Mn0.86t%, other impurities constituent content≤0.1wt%, remaining is aluminum Al.
After being got the raw materials ready and dried by component, the aluminium ingot of purity >=99.9% is placed in smelting furnace and is melted, temperature of aluminum liquid is 660
DEG C~670 DEG C, pure Mg ingots, pure Zn ingots, Al-20%Si intermediate alloys, Al-2%Sc intermediate alloys, Al- are added in aluminum melt
5%Zr intermediate alloys, Al-10%Mn intermediate alloys, are warming up to 730 DEG C and are sufficiently stirred for after alloy melting, then stand
15min carries out refine degasification, slagging-off at 720 DEG C, after standing 20min, makes liquation be cooled to 655 DEG C, is incubated, and uses inner surface
The cylindrical shape soup ladle for brushing coating takes out required aluminium liquid, in being placed in semisolid electromagnetic mixing apparatus, after mixing time 15s, and system
Into semi solid slurry, the semi solid slurry of formation is transferred in extrusion casting machine barrel immediately after, carry out extrusion casint into
Type, makes the thin-wall part that thickness is 2mm, can pass through anodized poststaining.Its mechanical property is as shown in table 1.It can be seen that, should
The tensile strength of alloy reaches 290Mpa, and yield strength is 214Mpa, and elongation percentage is 5.3%, but the alloy semi-solid forming property
It is bad.
Comparative example 2
The component of the aluminum alloy materials is by mass percentage：Mg0.7wt%, Si0.5wt%, Zn1.4wt%,
Sc0.3wt%, Zr0.15wt%, Mn0.8wt%, other impurities constituent content≤0.1wt%, remaining is aluminum Al.
After being got the raw materials ready and dried by component, the aluminium ingot of purity >=99.9% is placed in smelting furnace and is melted, temperature of aluminum liquid is 660
DEG C~670 DEG C, pure Mg ingots, pure Zn ingots, Al-20%Si intermediate alloys, Al-2%Sc intermediate alloys, Al- are added in aluminum melt
5%Zr intermediate alloys, Al-10%Mn intermediate alloys, are warming up to 730 DEG C and are sufficiently stirred for after alloy melting, then stand
15min carries out refine degasification, slagging-off at 720 DEG C, after standing 20min, makes liquation be cooled to 655 DEG C, is incubated, and uses inner surface
The cylindrical shape soup ladle for brushing coating takes out required aluminium liquid, in being placed in semisolid electromagnetic mixing apparatus, after mixing time 15s, and system
Into semi solid slurry, the semi solid slurry of formation is transferred in extrusion casting machine barrel immediately after, carry out extrusion casint into
Type, makes the thin-wall part that thickness is 2mm, can pass through anodized poststaining.Its mechanical property is as shown in table 1.It can be seen that, should
The tensile strength of alloy reaches 282Mpa, and yield strength is 205Mpa, and elongation percentage is 6.3%, but Si increases cause anodic oxidation
Can be bad.
Comparative example 3
The component of the aluminum alloy materials is by mass percentage：Mg0.7wt%, Si0.2wt%, Zn1.4wt%,
Sc0.15wt%, Zr0.1wt%, Mn0.8wt%, other impurities constituent content≤0.1wt%, remaining is aluminum Al.
After being got the raw materials ready and dried by component, the aluminium ingot of purity >=99.9% is placed in smelting furnace and is melted, temperature of aluminum liquid is 660
DEG C~670 DEG C, pure Mg ingots, pure Zn ingots, Al-20%Si intermediate alloys, Al-2%Sc intermediate alloys, Al- are added in aluminum melt
5%Zr intermediate alloys, Al-10%Mn intermediate alloys, are warming up to 730 DEG C and are sufficiently stirred for after alloy melting, then stand
15min carries out refine degasification, slagging-off at 720 DEG C, after standing 20min, makes liquation be cooled to 655 DEG C, is incubated, and uses inner surface
The cylindrical shape soup ladle for brushing coating takes out required aluminium liquid, in being placed in semisolid electromagnetic mixing apparatus, after mixing time 15s, and system
Into semi solid slurry, the semi solid slurry of formation is transferred in extrusion casting machine barrel immediately after, carry out extrusion casint into
Type, makes the thin-wall part that thickness is 2mm, can pass through anodized poststaining.Its mechanical property is as shown in table 1.It can be seen that, should
The tensile strength of alloy is 265Mpa, and yield strength is only 181Mpa, and elongation percentage is 5.6%, and its mechanical property is low by Sc contents
Impact it is larger.
Table 1
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various modifications or modification, this not shadow
Ring the flesh and blood of the present invention.
Claims (9)
1. it is a kind of can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials, it is characterised in that by according to mass percent
That what is counted is following elementary composition：
Mg：0.5~0.8%, Si：0.1~0.3%, Zn：1.2~1.5%, Sc：0.2~0.4%, Zr：0.1~0.2%, Mn：
0.5~1.0wt%, balance of Al and inevitable impurity element, the impurity content is less than 0.1%.
2. as claimed in claim 1 can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials, it is characterised in that it is described
The mass percent sum of Mg and Zn is 2.0%, and the mass percent of Zn is less than 2.5 with the ratio of the mass percent of Mg:
1；The mass percent of the Zr is the 1/2 of the mass percent of Sc.
3. it is a kind of as claimed in claim 1 or 2 can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials preparation side
Method, it is characterised in that comprise the steps：
Prepare aluminium alloy melt；
After the aluminium alloy melt is stirred at 720~730 DEG C stand, carry out at 710~720 DEG C refine degasification,
Slagging-off, is incubated after standing again at 650~670 DEG C, obtains aluminum alloy melt；
The aluminum alloy melt is placed in semisolid electromagnetic mixing apparatus, after carrying out electromagnetic agitation, semi solid slurry is obtained；
The semi solid slurry is carried out into die casting or squeeze cast form, the aluminum alloy materials are obtained.
4. as claimed in claim 3 can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials preparation method, it is special
Levy and be, the preparation method of the aluminium alloy melt is：
Purity is not less than after 99.9% aluminium ingot melted, during pure magnesium ingot, pure zinc ingot, aluminum silicon are added at 660~670 DEG C
Between alloy, scandium bearing master alloy, aluminium zirconium hardener and aluminum manganese intermediate alloy, treat the pure magnesium ingot, pure zinc ingot, close in the middle of aluminum silicon
The fusing of gold, scandium bearing master alloy, aluminium zirconium hardener and aluminum manganese intermediate alloy, obtains aluminium alloy melt.
5. as claimed in claim 3 can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials preparation method, it is special
Levy and be, the time of the electromagnetic agitation is 10~20s.
6. as claimed in claim 3 can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials preparation method, it is special
Levy and be, the injection speed of the die casting or extrusion casint is 1.5~4m/s.
7. as claimed in claim 6 can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials preparation method, it is special
Levy and be, the injection speed is 2~3m/s.
8. as claimed in claim 3 can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials preparation method, it is special
Levy and be, the solid phase mass fraction for carrying out die casting or the semi solid slurry before extrusion casint is 50~60%.
9. as claimed in claim 3 can anodic oxidation and be adapted to semi-solid-state shaping aluminum alloy materials preparation method, it is special
Levy and be, the holding temperature of the aluminum alloy melt is 655 DEG C.
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|---|---|---|---|---|
| CN107447134A (en) * | 2017-08-07 | 2017-12-08 | 苏州慧驰轻合金精密成型科技有限公司 | A kind of high intensity can anodic oxidation pack alloy and preparation method thereof |
| CN108165842A (en) * | 2017-12-25 | 2018-06-15 | 广东省材料与加工研究所 | A kind of semisolid pressure casting high heat conduction aluminium alloy and its pressure casting method |
| CN108796317A (en) * | 2018-06-25 | 2018-11-13 | 苏州慧驰轻合金精密成型科技有限公司 | Suitable for new-energy automobile can semi-solid squeeze casting aluminium alloy and preparation method |
| CN109666823A (en) * | 2019-01-14 | 2019-04-23 | 浙江飞哲工贸有限公司 | A kind of method and the used aluminium alloy of heat-generating disc preparing heat-generating disc using secondary aluminium |
| CN109735751A (en) * | 2019-03-07 | 2019-05-10 | 浙江万丰摩轮有限公司 | A kind of automobile-used high-strength and high ductility pack alloy of motor and preparation method thereof |
| CN109837436A (en) * | 2019-03-29 | 2019-06-04 | 华中科技大学 | A kind of wheel pack alloy and preparation method thereof and product |
| CN111719059A (en) * | 2020-06-11 | 2020-09-29 | 新疆众和股份有限公司 | Preparation method of fine-grain high-purity aluminum-silicon-copper alloy target blank for sputtering |
| CN112517872A (en) * | 2020-11-01 | 2021-03-19 | 广州德珐麒自动化技术有限公司 | Production device and production process of semi-solid aluminum alloy die casting based on electromagnetic stirring |
| CN114381640A (en) * | 2021-12-17 | 2022-04-22 | 深圳南科强正轻合金技术有限公司 | High-strength aluminum alloy material for rheocasting and application method thereof |
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