CN105483468A - Production method of special aluminum alloy for forging automobile aluminum alloy hubs - Google Patents
Production method of special aluminum alloy for forging automobile aluminum alloy hubs Download PDFInfo
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- CN105483468A CN105483468A CN201610073573.6A CN201610073573A CN105483468A CN 105483468 A CN105483468 A CN 105483468A CN 201610073573 A CN201610073573 A CN 201610073573A CN 105483468 A CN105483468 A CN 105483468A
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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
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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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Abstract
The invention discloses a production method of special aluminum alloy for forging automobile aluminum alloy hubs. Compositions of the special aluminum alloy comprise, by weight, 0.15-0.35% of Mn, 5.0-6.3% of Si, 1.3-2.5% of Mg, 0.12-0.18% of Ti, 0-0.5% of Fe, 0-0.07% of Cr, 0-0.18% of Ca, 0-0.16% of Mn, 0-0.08% of P, 0-0.06% of Pb, 0-0.8% of Ni, 0-0.08% of Cu, 0-0.06% of Zn, 0-0.02% of Sn and the balance Al. The compositions are smelted to obtain Mn, Si, Ti, Fe, Cr, Ca, Mn, P, Pb, Ni, Cu, Zn and Sn which are put in a smelting furnace to be smelted and then subjected to refining, standing, shape casting, stacking and packaging to produce the special aluminum alloy. The aluminum alloy material produced through the process has high abrasion resistance and good free-cutting performance and corrosion resistance; the automobile hubs produced through the aluminum alloy material are high in corrosion resistance and long in service life.
Description
Technical field
The present invention relates to technical field of aluminum alloy technology, specifically a kind of production method of forging the dedicated aluminium alloy that aluminium alloy wheel hub of vehicle uses.
Background technology
Wheel hub is a vitals of automobile, and its quality directly has influence on performance and the aesthetic measure of automotive performance.Because aluminium alloy is lightweight, intensity is high, good toughness, many automotive hubs both domestic and external adopt aluminum alloy materials to make.The production technique of automotive hub, very strict to the performance requriements of its boss material, the wheel hub produced, not only require that there is higher intensity, erosion resistance, excellent impelling strength, fatigue resistance and good wear resisting property, but also better smooth finish must be had, to strengthen the aesthetic of automotive hub.But the problem of environment can aggravate the extent of corrosion of aluminium alloy now, infringement automotive hub, surface of aluminum alloy hub is caused to send out crow, or there is blackspot, not only can have influence on the attractive in appearance of automotive hub, also can reduce intensity and the performance of aluminium alloy wheel hub, shorten the work-ing life of automotive hub, reduce the security of running car.
Summary of the invention
The production method of the dedicated aluminium alloy that the object of the present invention is to provide a kind of higher wear resisting property, preferably the forging aluminium alloy wheel hub of vehicle of free cutting property and erosion resistance to use, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
Forge a production method for the dedicated aluminium alloy that aluminium alloy wheel hub of vehicle uses, composition and the weight percent thereof of this dedicated aluminium alloy are as follows: Mn0.15-0.35%, Si5.0-6.3%, Mg1.3-2.5%, Ti0.12-0.18%, Fe≤0.5%, Cr≤0.07%, Ca≤0.18%, Mn≤0.16%, P≤0.08%, Pb≤0.06%, Ni≤0.8%, Cu≤0.08%, Zn≤0.06%, Sn≤0.02%, surplus is Al;
Step during production is as follows:
(1) Mn, Si, Ti, Fe, Cr, Ca, Mn, P, Pb, Ni, Cu, Zn, Sn are got in melting, be placed in smelting furnace by described weight percent and carry out melting, during storing, Al is placed in the bottom of smelting furnace, Si is placed on the upper strata of Al, put into other compositions successively again, then smelting furnace is heated, when temperature reaches 780-860 DEG C, use whipping appts to be stirred by liquation, then add Mg by above-mentioned weight percent, continue stirring ten minutes, use metallurgical deslagging device to remove the gred, namely make molten aluminium alloy;
(2) refining, to leave standstill: imported in standing furnace by the molten aluminium alloy in smelting furnace, use argon gas or nitrogen to be sprayed in molten aluminium alloy by refining agent and carry out refining, the add-on of refining agent is the 1.3-1.5 ‰ of molten aluminium alloy weight; After refining process completes, metallurgical deslagging device is used to remove the gred to molten aluminium alloy; Then the molten aluminium alloy after refining is left standstill 30-50min in standing furnace, and the temperature in standing furnace is remained between 740-760 DEG C;
(3) molten aluminium alloy in standing furnace is carried out shape casting by automatic casting machine by casting, and liquid filling machine speed is 40-60Hz, and carries out piling packaging by Automatic Code ingot machine, so namely makes the dedicated aluminium alloy that forging aluminium alloy wheel hub of vehicle uses.
As the further scheme of the present invention: composition and the weight percent thereof of described dedicated aluminium alloy are as follows: Mn0.2-0.3%, Si5.4-5.9%, Mg1.6-2.2%, Ti0.14-0.16%, Fe≤0.4%, Cr≤0.06%, Ca≤0.15%, Mn≤0.14%, P≤0.06%, Pb≤0.04%, Ni≤0.6%, Cu≤0.06%, Zn≤0.05%, Sn≤0.02%, surplus is Al.
As the further scheme of the present invention: in step (1), when temperature reaches 820 DEG C, use whipping appts to be stirred by liquation, then add Mg by above-mentioned weight percent.
As the further scheme of the present invention: in step (2), the add-on of refining agent is 1.5 ‰ of molten aluminium alloy weight.
As the further scheme of the present invention: in step (2), the molten aluminium alloy after refining is left standstill 40min in standing furnace, and the temperature in standing furnace is remained between 750 DEG C.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention adopts this explained hereafter aluminum alloy materials out, and have higher wear resisting property, preferably free cutting property and erosion resistance, its tensile strength, yield strength, unit elongation, compared with A356 aluminum alloy materials, are greatly increased; The automotive hub adopting this aluminum alloy materials to produce, has stronger erosion resistance, long service life.
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, a kind of production method of forging the dedicated aluminium alloy that aluminium alloy wheel hub of vehicle uses,
Composition and the weight percent thereof of this dedicated aluminium alloy are as follows: Mn0.15%, Si5.0%, Mg1.3%, Ti0.12%, Fe0.5%, Cr0.07%, Ca0.18%, Mn0.16%, P0.08%, Pb0.06%, Ni0.8%, Cu0.08%, Zn0.06%, Sn0.02%, surplus is Al.
Step during production is as follows:
(1) Mn, Si, Ti, Fe, Cr, Ca, Mn, P, Pb, Ni, Cu, Zn, Sn are got in melting, be placed in smelting furnace by described weight percent and carry out melting, during storing, Al is placed in the bottom of smelting furnace, Si is placed on the upper strata of Al, put into other compositions successively again, then smelting furnace is heated, when temperature reaches 780 DEG C, use whipping appts to be stirred by liquation, then add Mg by above-mentioned weight percent, continue stirring ten minutes, use metallurgical deslagging device to remove the gred, namely make molten aluminium alloy.
(2) refining, to leave standstill: imported in standing furnace by the molten aluminium alloy in smelting furnace, use argon gas or nitrogen to be sprayed in molten aluminium alloy by refining agent and carry out refining, the add-on of refining agent is 1.3 ‰ of molten aluminium alloy weight; After refining process completes, metallurgical deslagging device is used to remove the gred to molten aluminium alloy; Then the molten aluminium alloy after refining is left standstill 30min in standing furnace, and the temperature in standing furnace is remained between 740 DEG C.
(3) molten aluminium alloy in standing furnace is carried out shape casting by automatic casting machine by casting, and liquid filling machine speed is 40Hz, and carries out piling packaging by Automatic Code ingot machine, so namely makes the dedicated aluminium alloy that forging aluminium alloy wheel hub of vehicle uses.
Embodiment 2
In the embodiment of the present invention, a kind of production method of forging the dedicated aluminium alloy that aluminium alloy wheel hub of vehicle uses, composition and the weight percent thereof of this dedicated aluminium alloy are as follows: Mn0.35%, Si6.3%, Mg2.5%, Ti0.18%, Fe0.45%, Cr0.06%, Ca0.17%, Mn0.15%, P0.07%, Pb0.05%, Ni0.7%, Cu0.07%, Zn0.05%, Sn0.015%, surplus is Al.
Step during production is as follows:
(1) Mn, Si, Ti, Fe, Cr, Ca, Mn, P, Pb, Ni, Cu, Zn, Sn are got in melting, be placed in smelting furnace by described weight percent and carry out melting, during storing, Al is placed in the bottom of smelting furnace, Si is placed on the upper strata of Al, put into other compositions successively again, then smelting furnace is heated, when temperature reaches 860 DEG C, use whipping appts to be stirred by liquation, then add Mg by above-mentioned weight percent, continue stirring ten minutes, use metallurgical deslagging device to remove the gred, namely make molten aluminium alloy.
(2) refining, to leave standstill: imported in standing furnace by the molten aluminium alloy in smelting furnace, use argon gas or nitrogen to be sprayed in molten aluminium alloy by refining agent and carry out refining, the add-on of refining agent is 1.5 ‰ of molten aluminium alloy weight; After refining process completes, metallurgical deslagging device is used to remove the gred to molten aluminium alloy; Then the molten aluminium alloy after refining is left standstill 50min in standing furnace, and the temperature in standing furnace is remained between 760 DEG C.
(3) molten aluminium alloy in standing furnace is carried out shape casting by automatic casting machine by casting, and liquid filling machine speed is 60Hz, and carries out piling packaging by Automatic Code ingot machine, so namely makes the dedicated aluminium alloy that forging aluminium alloy wheel hub of vehicle uses.
Embodiment 3
In the embodiment of the present invention, a kind of production method of forging the dedicated aluminium alloy that aluminium alloy wheel hub of vehicle uses, composition and the weight percent thereof of this dedicated aluminium alloy are as follows: Mn0.2%, Si5.4%, Mg1.6%, Ti0.14%, Fe0.4%, Cr0.06%, Ca0.15%, Mn0.14%, P0.06%, Pb0.04%, Ni0.6%, Cu0.06%, Zn0.05%, Sn0.02%, surplus is Al.
Step during production is as follows:
(1) Mn, Si, Ti, Fe, Cr, Ca, Mn, P, Pb, Ni, Cu, Zn, Sn are got in melting, be placed in smelting furnace by described weight percent and carry out melting, during storing, Al is placed in the bottom of smelting furnace, Si is placed on the upper strata of Al, put into other compositions successively again, then smelting furnace is heated, when temperature reaches 800 DEG C, use whipping appts to be stirred by liquation, then add Mg by above-mentioned weight percent, continue stirring ten minutes, use metallurgical deslagging device to remove the gred, namely make molten aluminium alloy.
(2) refining, to leave standstill: imported in standing furnace by the molten aluminium alloy in smelting furnace, use argon gas or nitrogen to be sprayed in molten aluminium alloy by refining agent and carry out refining, the add-on of refining agent is 1.35 ‰ of molten aluminium alloy weight; After refining process completes, metallurgical deslagging device is used to remove the gred to molten aluminium alloy; Then the molten aluminium alloy after refining is left standstill 35min in standing furnace, and the temperature in standing furnace is remained between 745 DEG C.
(3) molten aluminium alloy in standing furnace is carried out shape casting by automatic casting machine by casting, and liquid filling machine speed is 45Hz, and carries out piling packaging by Automatic Code ingot machine, so namely makes the dedicated aluminium alloy that forging aluminium alloy wheel hub of vehicle uses.
Embodiment 4
In the embodiment of the present invention, a kind of production method of forging the dedicated aluminium alloy that aluminium alloy wheel hub of vehicle uses, composition and the weight percent thereof of this dedicated aluminium alloy are as follows: Mn0.3%, Si5.9%, Mg2.2%, Ti0.16%, Fe0.3%, Cr0.05%, Ca0.13%, Mn0.12%, P0.04%, Pb0.03%, Ni0.4%, Cu0.04%, Zn0.04%, Sn0.01%, surplus is Al.
Step during production is as follows:
(1) Mn, Si, Ti, Fe, Cr, Ca, Mn, P, Pb, Ni, Cu, Zn, Sn are got in melting, be placed in smelting furnace by described weight percent and carry out melting, during storing, Al is placed in the bottom of smelting furnace, Si is placed on the upper strata of Al, put into other compositions successively again, then smelting furnace is heated, when temperature reaches 820 DEG C, use whipping appts to be stirred by liquation, then add Mg by above-mentioned weight percent, continue stirring ten minutes, use metallurgical deslagging device to remove the gred, namely make molten aluminium alloy;
(2) refining, to leave standstill: imported in standing furnace by the molten aluminium alloy in smelting furnace, use argon gas or nitrogen to be sprayed in molten aluminium alloy by refining agent and carry out refining, the add-on of refining agent is 1.5 ‰ of molten aluminium alloy weight; After refining process completes, metallurgical deslagging device is used to remove the gred to molten aluminium alloy; Then the molten aluminium alloy after refining is left standstill 40min in standing furnace, and the temperature in standing furnace is remained between 750 DEG C;
(3) molten aluminium alloy in standing furnace is carried out shape casting by automatic casting machine by casting, and liquid filling machine speed is 50Hz, and carries out piling packaging by Automatic Code ingot machine, so namely makes the dedicated aluminium alloy that forging aluminium alloy wheel hub of vehicle uses.
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 (5)
1. forge a production method for the dedicated aluminium alloy that aluminium alloy wheel hub of vehicle uses, it is characterized in that, composition and the weight percent thereof of this dedicated aluminium alloy are as follows: Mn0.15-0.35%, Si5.0-6.3%, Mg1.3-2.5%, Ti0.12-0.18%, Fe≤0.5%, Cr≤0.07%, Ca≤0.18%, Mn≤0.16%, P≤0.08%, Pb≤0.06%, Ni≤0.8%, Cu≤0.08%, Zn≤0.06%, Sn≤0.02%, surplus is Al;
Step during production is as follows:
(1) Mn, Si, Ti, Fe, Cr, Ca, Mn, P, Pb, Ni, Cu, Zn, Sn are got in melting, be placed in smelting furnace by described weight percent and carry out melting, during storing, Al is placed in the bottom of smelting furnace, Si is placed on the upper strata of Al, put into other compositions successively again, then smelting furnace is heated, when temperature reaches 780-860 DEG C, use whipping appts to be stirred by liquation, then add Mg by above-mentioned weight percent, continue stirring ten minutes, use metallurgical deslagging device to remove the gred, namely make molten aluminium alloy;
(2) refining, to leave standstill: imported in standing furnace by the molten aluminium alloy in smelting furnace, use argon gas or nitrogen to be sprayed in molten aluminium alloy by refining agent and carry out refining, the add-on of refining agent is the 1.3-1.5 ‰ of molten aluminium alloy weight; After refining process completes, metallurgical deslagging device is used to remove the gred to molten aluminium alloy; Then the molten aluminium alloy after refining is left standstill 30-50min in standing furnace, and the temperature in standing furnace is remained between 740-760 DEG C;
(3) molten aluminium alloy in standing furnace is carried out shape casting by automatic casting machine by casting, and liquid filling machine speed is 40-60Hz, and carries out piling packaging by Automatic Code ingot machine, so namely makes the dedicated aluminium alloy that forging aluminium alloy wheel hub of vehicle uses.
2. the production method of dedicated aluminium alloy that uses of forging aluminium alloy wheel hub of vehicle according to claim 1, it is characterized in that, composition and the weight percent thereof of described dedicated aluminium alloy are as follows: Mn0.2-0.3%, Si5.4-5.9%, Mg1.6-2.2%, Ti0.14-0.16%, Fe≤0.4%, Cr≤0.06%, Ca≤0.15%, Mn≤0.14%, P≤0.06%, Pb≤0.04%, Ni≤0.6%, Cu≤0.06%, Zn≤0.05%, Sn≤0.02%, surplus is Al.
3. the production method of dedicated aluminium alloy that uses of forging aluminium alloy wheel hub of vehicle according to claim 1, it is characterized in that, in step (1), when temperature reaches 820 DEG C, use whipping appts to be stirred by liquation, then add Mg by above-mentioned weight percent.
4. the production method of dedicated aluminium alloy that uses of forging aluminium alloy wheel hub of vehicle according to claim 1, it is characterized in that, in step (2), the add-on of refining agent is 1.5 ‰ of molten aluminium alloy weight.
5. the production method of dedicated aluminium alloy that uses of forging aluminium alloy wheel hub of vehicle according to claim 1, it is characterized in that, in step (2), the molten aluminium alloy after refining is left standstill 40min in standing furnace, and the temperature in standing furnace is remained between 750 DEG C.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676298A (en) * | 2016-12-26 | 2017-05-17 | 广东迪生力汽配股份有限公司 | Grain refinement method for aluminum alloy hub |
| CN112921215A (en) * | 2021-01-19 | 2021-06-08 | 江苏大学 | Automobile hub aluminum alloy capable of being processed by casting spinning and forging spinning, preparation method, automobile hub and preparation method thereof |
| CN113564431A (en) * | 2021-08-10 | 2021-10-29 | 广州立中锦山合金有限公司 | High-strength aluminum alloy for wheel hub and preparation method thereof |
| CN115821128A (en) * | 2022-11-21 | 2023-03-21 | 中钢天源股份有限公司 | High-formability aluminum alloy bipolar plate substrate and preparation method thereof |
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| JP2008025003A (en) * | 2006-07-24 | 2008-02-07 | Daiki Aluminium Industry Co Ltd | Casting aluminum alloy, and casting of the aluminum alloy |
| CN102206778A (en) * | 2010-03-30 | 2011-10-05 | 本田技研工业株式会社 | Aluminium die casting alloy used as vehicle material |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106676298A (en) * | 2016-12-26 | 2017-05-17 | 广东迪生力汽配股份有限公司 | Grain refinement method for aluminum alloy hub |
| CN112921215A (en) * | 2021-01-19 | 2021-06-08 | 江苏大学 | Automobile hub aluminum alloy capable of being processed by casting spinning and forging spinning, preparation method, automobile hub and preparation method thereof |
| CN113564431A (en) * | 2021-08-10 | 2021-10-29 | 广州立中锦山合金有限公司 | High-strength aluminum alloy for wheel hub and preparation method thereof |
| CN115821128A (en) * | 2022-11-21 | 2023-03-21 | 中钢天源股份有限公司 | High-formability aluminum alloy bipolar plate substrate and preparation method thereof |
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Application publication date: 20160413 |