CN105506412B - A kind of aluminum alloy for automobile wheel hub casting rod and preparation method thereof - Google Patents
A kind of aluminum alloy for automobile wheel hub casting rod and preparation method thereof Download PDFInfo
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- CN105506412B CN105506412B CN201510956082.1A CN201510956082A CN105506412B CN 105506412 B CN105506412 B CN 105506412B CN 201510956082 A CN201510956082 A CN 201510956082A CN 105506412 B CN105506412 B CN 105506412B
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- aluminium alloy
- wheel hub
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- molten 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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a kind of aluminum alloy for automobile wheel hub casting rod, the mass percent of each composition is respectively：Si0.8~1.3%, Mn0.03~0.09%, Mg0.9~1.6%, B0.3~0.8%, Cr0.15~0.28%, Fe0.03~0.08%, Nd0.03~0.08%, La0.09~0.16%, Yb0.04~0.08%, other metals and nonmetallic impurity element total amount are no more than 0.5%, the step of remaining is Al, and the preparation method of above-mentioned aluminium alloy cast rod includes fusing, refining, stands and cast.Aluminium alloy wheel hub is produced using the casting rod of the present invention, gained aluminium alloy wheel hub is attractive in appearance, in light weight, intensity is high, while has higher corrosion resistance and endurance life, service life length.
Description
Technical field
The present invention relates to aluminium alloy cast rod manufacture field, particularly a kind of aluminum alloy for automobile wheel hub casting rod and its preparation side
Method.
Background technology
With the fast development of auto industry, the application of aluminium alloy wheel hub is more and more common.Aluminium alloy wheel hub compares steel wheel hub
There are four big advantages：First, non-load weight is reduced, so as to improve adherence properties；Second, improve acceleration and braking；Third, increase
Rigidity, the inclination of tire or wheel hub when the high rigidity of aluminium wheels significantly reduced curved, this is for being mounted with high-performance wheel
The car of tire is particularly important；Fourth, improve the cooling effect of brakes, in the alloy of aluminium wheels, some metals are inherently
Good heat conductor, so aluminium wheels are advantageous to rapidly discharge heat caused by braking so as to reduce due to system caused by high fever
Dynamic failure, and due to aluminium alloy wheel hub can more free moulding, just more can be advantageous to air-flow importeding into braking with some
The moulding effective temperature-reducing of system.But aluminum wheel hub also has some defects, such as：Aluminium alloy is more crisp, it is easy to small split occurs
Line, and be not easy to be found, its intensity is also without steel height.To improve the mechanical property of aluminium alloy wheel hub, from aluminum alloy materials
Start with particularly critical.
The quality of aluminum alloy materials is to influence a big factors of wheel hub quality, and conventional cast wheel hub is universal at present
It is disposable casting using A356 aluminiums, and during production aluminium alloy wheel hub, is not reprocessed, the inside of metal
Institutional framework does not change, and the problem of mechanical performance is relatively low be present.
The content of the invention
The invention provides a kind of aluminum alloy for automobile wheel hub casting rod and preparation method thereof, the aluminium used to aluminium alloy wheel hub
Alloy material has carried out rotten and micronization processes, and guarantee is provided to improve the mechanical performance of aluminium alloy wheel hub.
To achieve the above object, the technical scheme is that：
A kind of aluminum alloy for automobile wheel hub casting rod, the mass percent of each composition are respectively：Si0.8~1.3%, Mn0.03
~0.09%, Mg0.9~1.6%, B0.3~0.8%, Cr0.15~0.28%, Fe0.03~0.08%, Nd0.03~
0.08%th, La0.09~0.16%, Yb0.04~0.08%, other metals and nonmetallic impurity element total amount are no more than
0.5%, remaining is Al.
Preferably, the mass percent of each composition is respectively in the aluminium alloy cast rod：Si1.1%, Mn0.06%,
Mg1.3%, B0.6%, Cr0.22%, Fe0.06%, Nd0.06%, La0.13%, Yb0.06%, other metals and nonmetallic
Impurity element total amount be no more than 0.5%, remaining is Al.
A kind of preparation method of aluminum alloy for automobile wheel hub casting rod, comprises the following steps：
(1) melt：Aluminum feedstock and magnesium, silicon composition and coverture are melted to 700~720 DEG C in smelting furnace, Ran Houjia
Enter other alloying components in addition to aluminium, magnesium, silicon, be continuously heating to 740~750 DEG C, after alloying element all fusing
Molten aluminium alloy；
(2) refine：The temperature of molten aluminium alloy is adjusted to 730~740 DEG C, refining agent is sprayed into and carries out refining treatment, so
After be warming up to 750-760 DEG C, be passed through argon gas carry out refinery by de-gassing, skimmed after refining；
(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 730~740 DEG C；
(4) cast：Shape casting, casting will be carried out by hot top formula casting machine through the molten aluminium alloy after step (3) processing
During making, casting speed control is controlled in 0.07~0.12MPa, molten aluminium alloy in 80~85mm/min, water pressure of cooling water
Temperature be maintained at 730~740 DEG C, final casting obtains aluminium alloy cast rod finished product.
The present invention aluminium alloy cast rod, Nd, La, Yb element are added during casting, and be aided with Si, Mn, Cr,
The synergy of the other elements such as Mg, B, rotten and refining effect can be played to aluminum alloy organization, so as to obtain crystal grain it is thinner and
The aluminium alloy cast rod being more evenly distributed, aluminium alloy wheel hub is produced using above-mentioned casting rod, gained aluminium alloy wheel hub is attractive in appearance, weight
Gently, intensity is high, while has higher corrosion resistance and endurance life, service life length.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described, but protection scope of the present invention and application are not
It is limited to following examples：
Embodiment 1
A kind of aluminum alloy for automobile wheel hub casting rod, the mass percent of each composition are respectively：Si1.1%, Mn0.06%,
Mg1.3%, B0.6%, Cr0.22%, Fe0.06%, Nd0.06%, La0.13%, Yb0.06%, other metals and nonmetallic
Impurity element total amount be no more than 0.5%, remaining is Al.
The preparation method of above-mentioned aluminum alloy for automobile wheel hub casting rod, comprises the following steps：
(1) melt：Aluminum feedstock and magnesium, silicon composition and coverture are melted to 700~720 DEG C in smelting furnace, Ran Houjia
Enter other alloying components in addition to aluminium, magnesium, silicon, be continuously heating to 740~750 DEG C, after alloying element all fusing
Molten aluminium alloy；
(2) refine：The temperature of molten aluminium alloy is adjusted to 730~740 DEG C, refining agent is sprayed into and carries out refining treatment, so
After be warming up to 750-760 DEG C, be passed through argon gas carry out refinery by de-gassing, skimmed after refining；
(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 730~740 DEG C；
(4) cast：Shape casting, casting will be carried out by hot top formula casting machine through the molten aluminium alloy after step (3) processing
During making, casting speed control is controlled in 0.07~0.12MPa, molten aluminium alloy in 80~85mm/min, water pressure of cooling water
Temperature be maintained at 730~740 DEG C, final casting obtains aluminium alloy cast rod finished product.
Using above-mentioned aluminium alloy cast rod, aluminium alloy wheel hub, the aluminium alloy obtained are manufactured by the low pressure casting method of routine
Wheel hub finished product, Main Mechanical at ambient temperature are：Tensile strength is 385MPa, yield strength 293MPa, is extended
Rate is 14.9%.
Embodiment 2
A kind of aluminum alloy for automobile wheel hub casting rod, the mass percent of each composition are respectively：Si0.8%, Mn0.03%,
Mg0.9%, B0.3%, Cr0.15%, Fe0.03%, Nd0.03%, La0.09%, Yb0.04%, other metals and nonmetallic
Impurity element total amount be no more than 0.5%, remaining is Al.
The preparation method of above-mentioned aluminum alloy for automobile wheel hub casting rod, comprises the following steps：
(1) melt：Aluminum feedstock and magnesium, silicon composition and coverture are melted to 700~720 DEG C in smelting furnace, Ran Houjia
Enter other alloying components in addition to aluminium, magnesium, silicon, be continuously heating to 740~750 DEG C, after alloying element all fusing
Molten aluminium alloy；
(2) refine：The temperature of molten aluminium alloy is adjusted to 730~740 DEG C, refining agent is sprayed into and carries out refining treatment, so
After be warming up to 750-760 DEG C, be passed through argon gas carry out refinery by de-gassing, skimmed after refining；
(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 730~740 DEG C；
(4) cast：Shape casting, casting will be carried out by hot top formula casting machine through the molten aluminium alloy after step (3) processing
During making, casting speed control is controlled in 0.07~0.12MPa, molten aluminium alloy in 80~85mm/min, water pressure of cooling water
Temperature be maintained at 730~740 DEG C, final casting obtains aluminium alloy cast rod finished product.
Using above-mentioned aluminium alloy cast rod, aluminium alloy wheel hub, the aluminium alloy obtained are manufactured by the low pressure casting method of routine
Wheel hub finished product, Main Mechanical at ambient temperature are：Tensile strength is 331MPa, yield strength 271MPa, is extended
Rate is 13.2%.
Embodiment 3
A kind of aluminum alloy for automobile wheel hub casting rod, the mass percent of each composition are respectively：Si1.3%, Mn0.09%,
Mg1.6%, B0.8%, Cr0.28%, Fe0.08%, Nd0.08%, La0.16%, Yb0.08%, other metals and nonmetallic
Impurity element total amount be no more than 0.5%, remaining is Al.
The preparation method of above-mentioned aluminum alloy for automobile wheel hub casting rod, comprises the following steps：
(1) melt：Aluminum feedstock and magnesium, silicon composition and coverture are melted to 700~720 DEG C in smelting furnace, Ran Houjia
Enter other alloying components in addition to aluminium, magnesium, silicon, be continuously heating to 740~750 DEG C, after alloying element all fusing
Molten aluminium alloy；
(2) refine：The temperature of molten aluminium alloy is adjusted to 730~740 DEG C, refining agent is sprayed into and carries out refining treatment, so
After be warming up to 750-760 DEG C, be passed through argon gas carry out refinery by de-gassing, skimmed after refining；
(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 730~740 DEG C；
(4) cast：Shape casting, casting will be carried out by hot top formula casting machine through the molten aluminium alloy after step (3) processing
During making, casting speed control is controlled in 0.07~0.12MPa, molten aluminium alloy in 80~85mm/min, water pressure of cooling water
Temperature be maintained at 730~740 DEG C, final casting obtains aluminium alloy cast rod finished product.
Using above-mentioned aluminium alloy cast rod, aluminium alloy wheel hub, the aluminium alloy obtained are manufactured by the low pressure casting method of routine
Wheel hub finished product, Main Mechanical at ambient temperature are：Tensile strength is 383MPa, yield strength 293MPa, is extended
Rate is 14.9%.
Claims (1)
- A kind of 1. aluminum alloy for automobile wheel hub casting rod, it is characterised in that：The mass percent of each composition is respectively in the aluminium alloy cast rod：Si1.1%, Mn0.06%, Mg1.3%, B0.6%, Cr0.22%, Fe0.06%, Nd0.06%, La0.13%, Yb0.06%, other metals and nonmetallic impurity element total amount are not More than 0.5%, remaining is Al；The preparation method of described aluminum alloy for automobile wheel hub casting rod, comprises the following steps：(1) melt：Aluminum feedstock and magnesium, silicon composition and coverture are melted to 720 DEG C in smelting furnace, then add except aluminium, Other alloying components outside magnesium, silicon, are continuously heating to 740 DEG C, and molten aluminium alloy is obtained after alloying element all fusing；(2) refine：The temperature of molten aluminium alloy is adjusted to 730 DEG C, refining agent is sprayed into and carries out refining treatment, then heat to 750 DEG C, it is passed through argon gas and carries out refinery by de-gassing, skimmed after refining；(3) stand：Molten aluminium alloy after refining is stood, treats that molten aluminium alloy temperature is down to 730 DEG C；(4) cast：Shape casting will be carried out by hot top formula casting machine through the molten aluminium alloy after step (3) processing, cast Cheng Zhong, casting speed control are maintained at 730 in 80mm/min, water pressure of cooling water control in 0.12MPa, the temperature of molten aluminium alloy DEG C, final casting obtains aluminium alloy cast rod finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956082.1A CN105506412B (en) | 2015-12-18 | 2015-12-18 | A kind of aluminum alloy for automobile wheel hub casting rod and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956082.1A CN105506412B (en) | 2015-12-18 | 2015-12-18 | A kind of aluminum alloy for automobile wheel hub casting rod and preparation method thereof |
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| Publication Number | Publication Date |
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| CN105506412A CN105506412A (en) | 2016-04-20 |
| CN105506412B true CN105506412B (en) | 2017-11-10 |
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| CN106367646B (en) * | 2016-08-30 | 2017-11-10 | 江苏亚太安信达铝业有限公司 | A kind of high-strength aluminum alloy for tank wheel hub and preparation method thereof |
| CN110527877A (en) * | 2019-09-04 | 2019-12-03 | 含山县祥瑞运输有限公司 | A kind of preparation method of automotive hub casting aluminum alloy casting rod |
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| CN102373352B (en) * | 2010-08-07 | 2013-02-27 | 秦皇岛开发区美铝合金有限公司 | Preparation method of forging aluminum alloy for wheel hub swaging |
| CN102477507B (en) * | 2010-11-29 | 2013-04-03 | 秦皇岛开发区美铝合金有限公司 | Preparation method of aluminum alloy casting rod special for hub of load truck |
| CN103060635B (en) * | 2013-01-10 | 2015-01-07 | 宁波江北奇宇特种轮毂有限公司 | Three-sheet aluminum-alloy forged hub material |
| CN103966478A (en) * | 2013-01-24 | 2014-08-06 | 秦皇岛开发区美铝合金有限公司 | Production technology for aluminium alloy casting rod special for automobile Peugeot hubs |
| CN104775061A (en) * | 2015-04-10 | 2015-07-15 | 天津那诺机械制造有限公司 | Aluminum alloy material for liquid die forging of automobile hub |
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