CN105483456A - Manganese and aluminum alloy sheet with super plasticity and preparation method thereof - Google Patents
Manganese and aluminum alloy sheet with super plasticity and preparation method thereof Download PDFInfo
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- CN105483456A CN105483456A CN201610056043.0A CN201610056043A CN105483456A CN 105483456 A CN105483456 A CN 105483456A CN 201610056043 A CN201610056043 A CN 201610056043A CN 105483456 A CN105483456 A CN 105483456A
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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
- 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
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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Abstract
The invention discloses a manganese and aluminum alloy sheet with super plasticity and a preparation method thereof. The manganese and aluminum alloy sheet is prepared from, by weight, 3.2-3.8% of manganese, 0.8-1.2% of zinc, 0.22-0.3% of titanium, 0.2-0.3% of bismuth, 0.08-0.12% of copper, 0.03-0.07% of ytterbium, 0.04-0.08% of cadmium, 0.8-1.1% of silicon and the balance aluminum. The raw materials are prepared; aluminum ingots are smelted, alloy materials are put in, heat preservation is performed, a covering agent is added in, a refining agent is added for refining when temperature is lowered to 720-730 DEG C, standing is performed, drossing is performed, and molten aluminum alloy is obtained; casting, annealing, rolling and middle-temperature coiling rolling are performed so that the manganese and aluminum alloy sheet can be obtained. The prepared manganese and aluminum alloy sheet has high-temperature superplastic performance, the transverse elongation percentage of the sheet can reach 214-228%, the longitudinal elongation percentage of the sheet can reach 236-250%, and a workpiece complicated in shape can be further formed.
Description
Technical field
The present invention relates to aluminum alloy plate materials processing technique field, specifically one has superplastic mangal sheet material and preparation method thereof.
Background technology
The energy, environmental protection, safety are the difficult problems that world today's automotive industry faces, and automotive light weight technology is the effective way reducing energy consumption, improve automobile fuel ecomomy, reduce environmental pollution.Aluminium alloy is as traditional metallic substance, and because its density is little, specific tenacity is high, corrosion-resistant, density is little, shock resistance is good, easy surface colour, good formability, and high to reclaim again, a series of good characteristic such as reproducibility, become the ideal material of automotive light weight technology.
Along with the development of modern industry and casting technology, to aluminium alloy, as having the aluminium alloy of high strength, high-ductility, excellent wear resistance and erosion resistance, demand is increasing.Through the development of decades, aldural has formed complete series, and performance tends towards stability, and production method is day by day perfect, becomes alloy system indispensable in Material Field.But at present the plasticity of aldural is lower, generally can not bear larger deflection, thus make it apply to be subject to larger restriction.Many vitals many employings wrought aluminium alloy manufactures needing high-ductility.But although wrought aluminium alloy has desirable high-ductility, its course of processing requires high to process equipment mould, and operation is many, and therefore the production cycle is long, and cost is very high.By contrast, cast aluminium alloy has cheap, cast structure isotropy, easily produces complex-shaped part, both single piece production many advantages such as also can to produce in enormous quantities.
Summary of the invention
The object of the present invention is to provide one to have superplastic mangal sheet material and preparation method thereof, obtained mangal sheet material has High-temperature Superplasticity energy, and horizontal expansion rate can reach 214 ~ 228%, and rate extending longitudinally can reach 236 ~ 250%.
For achieving the above object, the invention provides following technical scheme:
One has superplastic mangal sheet material, according to weight percent meter, be made up of following component: the aluminium of manganese 3.2 ~ 3.8%, zinc 0.8 ~ 1.2%, titanium 0.22 ~ 0.3%, bismuth 0.2 ~ 0.3%, copper 0.08 ~ 0.12%, ytterbium 0.03 ~ 0.07%, cadmium 0.04 ~ 0.08%, silicon 0.8 ~ 1.1% and surplus.
As the further scheme of the present invention: according to weight percent meter, be made up of following component: the aluminium of manganese 3.4 ~ 3.6%, zinc 0.9 ~ 1.1%, titanium 0.25 ~ 0.28%, bismuth 0.24 ~ 0.26%, copper 0.09 ~ 0.11%, ytterbium 0.04 ~ 0.06%, cadmium 0.05 ~ 0.07%, silicon 0.8 ~ 1.0% and surplus.
As the further scheme of the present invention: according to weight percent meter, be made up of following component: the aluminium of manganese 3.5%, zinc 1.0%, titanium 0.26%, bismuth 0.25%, copper 0.1%, ytterbium 0.05%, cadmium 0.06%, silicon 0.9% and surplus.
Described has superplastic mangal preparation of plates method, comprises the following steps:
(1) by above-mentioned weight percent, prepare each component raw material, each component raw material is pure ingot material or alloy material;
(2) aluminium ingot is joined in smelting furnace, melting at the temperature of 720 ~ 730 DEG C, after aluminium ingot melts completely, smelting furnace is warming up to 750 ~ 780 DEG C, then continue to drop into each alloy material in smelting furnace, insulation is until when alloy in smelting furnace is in a liquid state completely, fully stir, then insulating covering agent SY-LF1 is added according to 0.65 ~ 0.68% of aluminium alloy melt quality, when aluminium alloy melt temperature is down to 720 ~ 730 DEG C, refining agent hexachloroethane is added again according to 0.45 ~ 0.5% of aluminium alloy melt quality, refining 12 ~ 15min is carried out to aluminium alloy melt, after leaving standstill 35 ~ 40min, skim surface scum, obtain molten aluminium alloy,
(3) temperature be 720 ~ 730 DEG C, hydraulic pressure is 0.12 ~ 0.14MPa, speed is cast molten aluminium alloy under being the condition of 38 ~ 40mm/min, obtains aluminium alloy cast ingot;
(4) aluminium alloy cast ingot is put into process stove and be heated to 450 ~ 460 DEG C, soaking time is 1 ~ 1.5h, to come out of the stove water-cooled, by above-mentioned treated aluminium alloy cast ingot at the heating under pressure of 2 ~ 3GPa to 470 ~ 480 DEG C, after insulation 20 ~ 30min, power-off pressurize naturally cools to room temperature, and the circulating water flow of its cooling pressure head is 2.0 ~ 2.2L/min, obtains the aluminium alloy cast ingot after annealing;
(5) to the aluminium alloy cast ingot milling face after annealing, then put into desk stove and add and hanker being heated to 400 ~ 420 DEG C, be rolled after insulation 6 ~ 8h, obtain hot-rolled sheet;
(6) in being carried out under temperature is 170 ~ 178 DEG C of conditions by hot-rolled sheet, warm rolling rolls, and obtains having superplastic mangal sheet material.
Compared with prior art, the invention has the beneficial effects as follows:
The mangal sheet material that the present invention obtains has High-temperature Superplasticity energy, the horizontal expansion rate of sheet material can reach 214 ~ 228%, rate extending longitudinally can reach 236 ~ 250%, complex-shaped workpiece can be gone out by one step forming, and shaping does not have resilience, dimensional stabilizing, machining deviation is less than 3.9 ‰, and tolerance is close with accurate machining.In addition, this preparation method meets environmental protection processing, can meet the shaping demand that shaping deflection is larger, shape is more complicated, and can substitute import like product completely.
The mangal sheet material that the present invention obtains can be used for manufacturing the complex-shaped workpieces that in the fields such as Aeronautics and Astronautics, automobile, train, construction industry, electronics and medical treatment, aluminium alloy manufactures.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, one has superplastic mangal sheet material, according to weight percent meter, be made up of following component: the aluminium of manganese 3.2%, zinc 1.2%, titanium 0.22%, bismuth 0.3%, copper 0.08%, ytterbium 0.07%, cadmium 0.04%, silicon 1.1% and surplus.
Described has superplastic mangal preparation of plates method, comprises the following steps:
(1) by above-mentioned weight percent, prepare each component raw material, each component raw material is pure ingot material or alloy material;
(2) aluminium ingot is joined in smelting furnace, melting at the temperature of 730 DEG C, after aluminium ingot melts completely, smelting furnace is warming up to 780 DEG C, then continue to drop into each alloy material in smelting furnace, insulation is until when alloy in smelting furnace is in a liquid state completely, fully stir, then insulating covering agent SY-LF1 is added according to 0.68% of aluminium alloy melt quality, when aluminium alloy melt temperature is down to 720 DEG C, refining agent hexachloroethane is added again according to 0.45% of aluminium alloy melt quality, refining 15min is carried out to aluminium alloy melt, after leaving standstill 35min, skim surface scum, obtain molten aluminium alloy,
(3) temperature be 730 DEG C, hydraulic pressure is 0.12MPa, speed is cast molten aluminium alloy under being the condition of 40mm/min, obtains aluminium alloy cast ingot;
(4) aluminium alloy cast ingot is put into process stove and be heated to 460 DEG C, soaking time is 1.5h, to come out of the stove water-cooled, by above-mentioned treated aluminium alloy cast ingot at the heating under pressure of 3GPa to 480 DEG C, after insulation 20min, power-off pressurize naturally cools to room temperature, and the circulating water flow of its cooling pressure head is 2.0L/min, obtains the aluminium alloy cast ingot after annealing;
(5) to the aluminium alloy cast ingot milling face after annealing, then put into desk stove and add and hanker being heated to 420 DEG C, be rolled after insulation 7h, obtain hot-rolled sheet;
(6) in being carried out under temperature is 176 DEG C of conditions by hot-rolled sheet, warm rolling rolls, and obtains having superplastic mangal sheet material.
Embodiment 2
In the embodiment of the present invention, one has superplastic mangal sheet material, according to weight percent meter, be made up of following component: the aluminium of manganese 3.8%, zinc 0.8%, titanium 0.3%, bismuth 0.2%, copper 0.12%, ytterbium 0.03%, cadmium 0.08%, silicon 0.8% and surplus.
It is described that to have superplastic mangal preparation of plates method identical with embodiment 1.
Embodiment 3
In the embodiment of the present invention, one has superplastic mangal sheet material, according to weight percent meter, be made up of following component: the aluminium of manganese 3.4%, zinc 1.1%, titanium 0.25%, bismuth 0.26%, copper 0.09%, ytterbium 0.06%, cadmium 0.05%, silicon 1.0% and surplus.
It is described that to have superplastic mangal preparation of plates method identical with embodiment 1.
Embodiment 4
In the embodiment of the present invention, one has superplastic mangal sheet material, according to weight percent meter, be made up of following component: the aluminium of manganese 3.6%, zinc 0.9%, titanium 0.28%, bismuth 0.24%, copper 0.11%, ytterbium 0.04%, cadmium 0.07%, silicon 0.8% and surplus.
It is described that to have superplastic mangal preparation of plates method identical with embodiment 1.
Embodiment 5
In the embodiment of the present invention, one has superplastic mangal sheet material, according to weight percent meter, be made up of following component: the aluminium of manganese 3.5%, zinc 1.0%, titanium 0.26%, bismuth 0.25%, copper 0.1%, ytterbium 0.05%, cadmium 0.06%, silicon 0.9% and surplus.
It is described that to have superplastic mangal preparation of plates method identical with embodiment 1.
The performance of the mangal sheet material that each embodiment of table 1 obtains
| Project | Horizontal expansion rate (%) | Rate extending longitudinally (%) | Machining deviation (‰) |
| Embodiment 1 | 214 | 236 | 3.88 |
| Embodiment 2 | 217 | 237 | 3.83 |
| Embodiment 3 | 218 | 241 | 3.82 |
| Embodiment 4 | 223 | 245 | 3.79 |
| Embodiment 5 | 228 | 250 | 3.72 |
The mangal sheet material obtained to the various embodiments described above carries out performance test, test result is as shown in table 1, wherein horizontal expansion rate and rate extending longitudinally are all under the condition of 500 DEG C, with measured by the speed tensile 3.6 μ s of 2.2mm/min: the horizontal expansion rate of the mangal sheet material that the present invention obtains can reach 214 ~ 228%, rate extending longitudinally can reach 236 ~ 250%, complex-shaped workpiece can be gone out by one step forming, and shaping does not have resilience, dimensional stabilizing, machining deviation is less than 3.9 ‰, and tolerance is close with accurate machining.As from the foregoing, the mangal sheet material that the present invention obtains has High-temperature Superplasticity energy, can be used for manufacturing the complex-shaped workpieces that in the fields such as Aeronautics and Astronautics, automobile, train, construction industry, electronics and medical treatment, aluminium alloy manufactures.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (4)
1. one kind has superplastic mangal sheet material, it is characterized in that, according to weight percent meter, be made up of following component: the aluminium of manganese 3.2 ~ 3.8%, zinc 0.8 ~ 1.2%, titanium 0.22 ~ 0.3%, bismuth 0.2 ~ 0.3%, copper 0.08 ~ 0.12%, ytterbium 0.03 ~ 0.07%, cadmium 0.04 ~ 0.08%, silicon 0.8 ~ 1.1% and surplus.
2. according to claim 1 have superplastic mangal sheet material, it is characterized in that, according to weight percent meter, be made up of following component: the aluminium of manganese 3.4 ~ 3.6%, zinc 0.9 ~ 1.1%, titanium 0.25 ~ 0.28%, bismuth 0.24 ~ 0.26%, copper 0.09 ~ 0.11%, ytterbium 0.04 ~ 0.06%, cadmium 0.05 ~ 0.07%, silicon 0.8 ~ 1.0% and surplus.
3. according to claim 1 have superplastic mangal sheet material, it is characterized in that, according to weight percent meter, be made up of following component: the aluminium of manganese 3.5%, zinc 1.0%, titanium 0.26%, bismuth 0.25%, copper 0.1%, ytterbium 0.05%, cadmium 0.06%, silicon 0.9% and surplus.
4. as described in as arbitrary in claims 1 to 3, there is a superplastic mangal preparation of plates method, it is characterized in that, comprise the following steps:
(1) by above-mentioned weight percent, prepare each component raw material, each component raw material is pure ingot material or alloy material;
(2) aluminium ingot is joined in smelting furnace, melting at the temperature of 720 ~ 730 DEG C, after aluminium ingot melts completely, smelting furnace is warming up to 750 ~ 780 DEG C, then continue to drop into each alloy material in smelting furnace, insulation is until when alloy in smelting furnace is in a liquid state completely, fully stir, then insulating covering agent SY-LF1 is added according to 0.65 ~ 0.68% of aluminium alloy melt quality, when aluminium alloy melt temperature is down to 720 ~ 730 DEG C, refining agent hexachloroethane is added again according to 0.45 ~ 0.5% of aluminium alloy melt quality, refining 12 ~ 15min is carried out to aluminium alloy melt, after leaving standstill 35 ~ 40min, skim surface scum, obtain molten aluminium alloy,
(3) temperature be 720 ~ 730 DEG C, hydraulic pressure is 0.12 ~ 0.14MPa, speed is cast molten aluminium alloy under being the condition of 38 ~ 40mm/min, obtains aluminium alloy cast ingot;
(4) aluminium alloy cast ingot is put into process stove and be heated to 450 ~ 460 DEG C, soaking time is 1 ~ 1.5h, to come out of the stove water-cooled, by above-mentioned treated aluminium alloy cast ingot at the heating under pressure of 2 ~ 3GPa to 470 ~ 480 DEG C, after insulation 20 ~ 30min, power-off pressurize naturally cools to room temperature, and the circulating water flow of its cooling pressure head is 2.0 ~ 2.2L/min, obtains the aluminium alloy cast ingot after annealing;
(5) to the aluminium alloy cast ingot milling face after annealing, then put into desk stove and add and hanker being heated to 400 ~ 420 DEG C, be rolled after insulation 6 ~ 8h, obtain hot-rolled sheet;
(6) in being carried out under temperature is 170 ~ 178 DEG C of conditions by hot-rolled sheet, warm rolling rolls, and obtains having superplastic mangal sheet material.
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| CN201610056043.0A CN105483456B (en) | 2016-01-27 | 2016-01-27 | It is a kind of that there is superplastic aluflex sheet material and preparation method thereof |
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| CN201610056043.0A CN105483456B (en) | 2016-01-27 | 2016-01-27 | It is a kind of that there is superplastic aluflex sheet material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755330A (en) * | 2016-05-03 | 2016-07-13 | 贵州航天风华精密设备有限公司 | Superplasticity aluminum alloy plate and preparation method thereof |
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