CN106086531B - Shock resistance aluminium alloy and preparation method thereof for automotive hub - Google Patents
Shock resistance aluminium alloy and preparation method thereof for automotive hub Download PDFInfo
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- CN106086531B CN106086531B CN201610422733.3A CN201610422733A CN106086531B CN 106086531 B CN106086531 B CN 106086531B CN 201610422733 A CN201610422733 A CN 201610422733A CN 106086531 B CN106086531 B CN 106086531B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 43
- 230000035939 shock Effects 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 36
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 26
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000002893 slag Substances 0.000 claims abstract description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004411 aluminium Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 14
- 239000011701 zinc Substances 0.000 claims abstract description 14
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 13
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 13
- 239000011651 chromium Substances 0.000 claims abstract description 13
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 13
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 13
- 239000011777 magnesium Substances 0.000 claims abstract description 13
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 13
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 13
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052718 tin Inorganic materials 0.000 claims abstract description 13
- 239000011135 tin Substances 0.000 claims abstract description 13
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 13
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052709 silver Inorganic materials 0.000 claims abstract description 12
- 239000004332 silver Substances 0.000 claims abstract description 12
- 239000011261 inert gas Substances 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 10
- 230000008018 melting Effects 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 14
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 14
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 14
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 8
- MPPQGYCZBNURDG-UHFFFAOYSA-N 2-propionyl-6-dimethylaminonaphthalene Chemical compound C1=C(N(C)C)C=CC2=CC(C(=O)CC)=CC=C21 MPPQGYCZBNURDG-UHFFFAOYSA-N 0.000 claims description 7
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 claims description 7
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052627 muscovite Inorganic materials 0.000 claims description 7
- 239000011022 opal Substances 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 7
- 239000011780 sodium chloride Substances 0.000 claims description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 7
- 235000011152 sodium sulphate Nutrition 0.000 claims description 7
- 239000011592 zinc chloride Substances 0.000 claims description 6
- 235000005074 zinc chloride Nutrition 0.000 claims description 6
- 238000005660 chlorination reaction Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 235000017550 sodium carbonate Nutrition 0.000 description 4
- 235000002639 sodium chloride Nutrition 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 229910052754 neon Inorganic materials 0.000 description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The shock resistance aluminium alloy and preparation method thereof that the invention discloses a kind of for automotive hub, this method includes：1) aluminium, magnesium, chromium, zinc, palladium and vanadium are carried out to the first heat treatment at 850 950 DEG C, inert gas is then passed through into system, system is then cooled to 660 680 DEG C of processes the first molten metal is made；2) tin, silver, iron, germanium and scandium are carried out to process of second heat treatment the second molten metal is made at 1,150 1200 DEG C；3) the second molten metal is added into the first molten metal, and the temperature of mixed system is adjusted to 960 1000 DEG C to carry out melting, then slagging agent is added into mixed system and carries out slag hitting processing, finally cool down the process the shock resistance aluminium alloy for automotive hub is made.There is excellent mechanical strength, especially shock resistance by shock resistance aluminium alloy made from this method；The preparation method raw material is easy to get simultaneously, process is simple, convenient for being widely used.
Description
Technical field
The present invention relates to aluminium alloys, and in particular, to a kind of for the shock resistance aluminium alloy of automotive hub and its preparation side
Method.
Background technology
Wheel hub, alias wheel rim, i.e., exterior feature is supporting the drum-shaped of tire, center to be assemblied in the component on axis in tire.Often
The automotive hub seen has steel wheel hub and aluminium alloy matter wheel hub.Aluminium alloy wheel hub has the following advantages：It is beautiful and generous；Light, province
Oil；Expansion and contraction is high, and elasticity is good；Heat conductivity is good；It is good to protect circle property, is unlikely to deform, is suitble to run at high speed；Elasticity is good, improves vehicle
Ride comfort in traveling, it is easier to absorb the vibration and noise in movement.But aluminium alloy matter wheel hub poor durability, once it meets
It deforms and cannot repair after being collided to hard object.
Invention content
The shock resistance aluminium alloy and preparation method thereof that the object of the present invention is to provide a kind of for automotive hub, passes through the party
Shock resistance aluminium alloy made from method has excellent mechanical strength, especially shock resistance；The preparation method raw material is easy simultaneously
, process it is simple, convenient for being widely used.
To achieve the goals above, the present invention provides a kind of preparation sides of the shock resistance aluminium alloy for automotive hub
Method, this method include：
1) aluminium, magnesium, chromium, zinc, palladium and vanadium are carried out to the first heat treatment at 850-950 DEG C, are then passed through into system lazy
Property gas, then by system be cooled to 660-680 DEG C be made the first molten metal process；
2) tin, silver, iron, germanium and scandium are carried out to the second heat treatment at 1150-1200 DEG C so that the work of the second molten metal is made
Sequence；
3) the second molten metal is added into the first molten metal, and the temperature of mixed system is adjusted to 960-1000 DEG C
To carry out melting, slagging agent is then added into mixed system and carries out slag hitting processing, finally cools down and is used for automotive hub to be made
Shock resistance aluminium alloy process.
The present invention also provides a kind of shock resistance aluminium alloy for automotive hub, which passes through above-mentioned
Method is prepared.
Through the above technical solutions, preparation method provided by the invention is specially：Be first by aluminium, magnesium, chromium, zinc, palladium and
Vanadium is heat-treated, and is then passed through inert gas and cooling, is formed gas passage in the first gradually cooling molten metal in this way；Its
It is secondary, tin, silver, iron, germanium and scandium are subjected to the second heat treatment so that the second molten metal is made；Again, the second molten metal is added to
In one molten metal, such second molten metal can effectively enter to be filled in the gas passage in the first molten metal, simultaneously
By surface chemistry the two is ideally combined；Finally, slagging agent is added into mixed system and carries out slag hitting processing, cold
But the shock resistance aluminium alloy for automotive hub is made.The high mechanical strength of this kind of aluminium alloy, especially shock resistance are excellent
More, the defect of aluminium alloy matter wheel hub poor durability in the prior art is effectively overcomed, and then improves aluminium alloy matter wheel hub
Applicability.In addition, the preparation method raw material is easy to get, process is simple, convenient for being widely used.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below.It should be understood that described herein specific
Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present invention provides a kind of preparation method of the shock resistance aluminium alloy for automotive hub, this method includes：
1) aluminium, magnesium, chromium, zinc, palladium and vanadium are carried out to the first heat treatment at 850-950 DEG C, are then passed through into system lazy
Property gas, then by system be cooled to 660-680 DEG C be made the first molten metal process；
2) tin, silver, iron, germanium and scandium are carried out to the second heat treatment at 1150-1200 DEG C so that the work of the second molten metal is made
Sequence；
3) the second molten metal is added into the first molten metal, and the temperature of mixed system is adjusted to 960-1000 DEG C
To carry out melting, slagging agent is then added into mixed system and carries out slag hitting processing, finally cools down and is used for automotive hub to be made
Shock resistance aluminium alloy process.
In the present invention, the dosage of each material can select in a wide range, but be closed to improve aluminium obtained
The mechanical strength of gold, it is preferable that relative to the aluminium of 100 parts by weight, the dosage of magnesium is 0.95-1.35 parts by weight, and the dosage of chromium is
The dosage of 0.08-0.28 parts by weight, zinc is 1.15-1.65 parts by weight, and the dosage of palladium is 0.15-0.40 parts by weight, the dosage of vanadium
Dosage for 0.06-0.12 parts by weight, tin is 5.50-6.10 parts by weight, and silver-colored dosage is 0.05-0.12 parts by weight, the use of iron
Amount is 4.00-4.85 parts by weight, and the dosage of germanium is 0.24-0.30 parts by weight, and the dosage of scandium is 0.12-0.16 parts by weight.
In the process 1 of the present invention) in, the actual conditions of the first heat treatment can select in a wide range, but in order to
Improve the mechanical strength of aluminium alloy obtained, it is preferable that the first heat treatment at least meets the following conditions：Heat treatment time is 4-
8h, vacuum degree 0.5-0.8MPa.
In the process 1 of the present invention) in, the actual conditions of inert gas can select in a wide range, but in order to carry
The mechanical strength of aluminium alloy made from height, it is preferable that inert gas at least meets the following conditions：Stream pressure is 1-
1.5MPa, pulse frequency 15-40KHz, air velocity are not more than 200m/s.
In the process 1 of the present invention) in, the actual conditions of inert gas can select in a wide range, but in order to carry
The mechanical strength of aluminium alloy made from height, it is preferable that one kind in argon gas, helium, nitrogen and neon of inert gas or
It is a variety of.
In the process 1 of the present invention) in, cooling rate can select in a wide range, but obtained in order to improve
The mechanical strength of aluminium alloy, it is preferable that during system is carried out cooling, cooling rate is 5-15 DEG C/min.
In the process 2 of the present invention) in, the actual conditions of the second heat treatment can select in a wide range, but in order to
Improve the mechanical strength of aluminium alloy obtained, it is preferable that the second heat treatment at least meets the following conditions：Heat treatment time is 7-
10h, vacuum degree 0.5-0.8MPa.
In the process 3 of the present invention) in, the time of melting can select in a wide range, but obtained in order to improve
Aluminium alloy mechanical strength, it is preferable that the time of melting be 2-4h.
In the process 3 of the present invention) in, the actual conditions of slag hitting processing can select in a wide range, but in order to carry
The mechanical strength of aluminium alloy made from height, it is preferable that slag hitting processing at least meets the following conditions：Slag hitting temperature is 1150-
1200 DEG C, the slag hitting time is 1-3h.
In the process 3 of the present invention) in, the actual conditions of cooling rate can select in a wide range, but in order to carry
The mechanical strength of aluminium alloy made from height, it is preferable that during mixed system is cooled down, cooling rate be 25-35 DEG C/
min。
In the process 3 of the present invention) in, the dosage of slagging agent can select in a wide range, but obtained in order to improve
Aluminium alloy mechanical strength, it is preferable that relative to the mixed system of 100 parts by weight, the dosage of slagging agent is 5-8 weight
Part.
In the process 3 of the present invention) in, the concrete component of slagging agent can select in a wide range, but in order to improve
The mechanical strength of aluminium alloy obtained, it is preferable that in process 3) in, slagging agent contain silica, sodium chloride, sodium sulphate,
Sodium carbonate, zinc chloride, prodan, opal and muscovite.
In above-mentioned slagging agent, the concrete content of each component can select in a wide range, but obtained in order to improve
Aluminium alloy mechanical strength, it is preferable that in process 3) in, relative to the silica of 100 parts by weight, the content of sodium chloride
Content for 5-12 parts by weight, sodium sulphate is 3-8 parts by weight, and the content of sodium carbonate is 1.5-4 parts by weight, and the content of zinc chloride is
The content of 8-13 parts by weight, prodan is 1-3 parts by weight, and the content of opal is 1.5-3.5 parts by weight, the content of muscovite
For 2.5-5 parts by weight.
The present invention also provides a kind of shock resistance aluminium alloy for automotive hub, which passes through above-mentioned
Method is prepared.
The present invention will be described in detail by way of examples below.
Preparation example 1
By silica, sodium chloride, sodium sulphate, sodium carbonate, zinc chloride, prodan, opal and muscovite according to
100：10：5：2：10：2：2.5：4 weight ratio is mixed to prepare slagging agent D1.
Preparation example 2
By silica, sodium chloride, sodium sulphate, sodium carbonate, zinc chloride, prodan, opal and muscovite according to
100：5：3：1.5：8：1：1.5：2.5 weight ratio is mixed to prepare slagging agent D2.
Preparation example 3
By silica, sodium chloride, sodium sulphate, sodium carbonate, zinc chloride, prodan, opal and muscovite according to
100：12：8：4：13：3：3.5：5 weight ratio is mixed to prepare slagging agent D3.
Embodiment 1
1) aluminium, magnesium, chromium, zinc, palladium and vanadium are heat-treated in 900 DEG C and vacuum degree to carry out first under conditions of 0.7MPa
5h, inert gas is then passed through into system, and (argon gas, stream pressure 1.3MPa, pulse frequency 30KHz, air velocity is not
More than 200m/s), system is then cooled to 670 DEG C so that the first molten metal is made according to the rate of 10 DEG C/min.
2) tin, silver, iron, germanium and scandium are carried out under conditions of 1180 DEG C and vacuum degree are 0.7MPa the second heat treatment 8h with
The second molten metal is made；Wherein, the weight ratio of aluminium, magnesium, chromium, zinc, palladium, vanadium, tin, silver, iron, germanium and scandium is 100：1.15：0.18：
1.35：0.30：0.09：5.90：0.08：4.45：0.28：0.15.
3) above-mentioned second molten metal is added into the first molten metal, and the temperature of mixed system is adjusted to 980 DEG C
To carry out melting 3h, slagging agent D1 is then added into mixed system, and (weight ratio of mixed system and slagging agent is 100：7) simultaneously
Slag hitting is carried out in 1180 DEG C and handles 2h, is finally cooled to 25 DEG C according to the rate of 30 DEG C/min to be made for the anti-of automotive hub
Impact aluminium alloy A1.
Embodiment 2
1) aluminium, magnesium, chromium, zinc, palladium and vanadium are heat-treated in 850 DEG C and vacuum degree to carry out first under conditions of 0.5MPa
4h, inert gas is then passed through into system, and (nitrogen, stream pressure 1MPa, pulse frequency 15KHz, air velocity are little
In 200m/s), system is then cooled to 660 DEG C so that the first molten metal is made according to the rate of 5 DEG C/min.
2) tin, silver, iron, germanium and scandium are carried out under conditions of 1150 DEG C and vacuum degree are 0.5MPa the second heat treatment 7h with
The second molten metal is made；Wherein, the weight ratio of aluminium, magnesium, chromium, zinc, palladium, vanadium, tin, silver, iron, germanium and scandium is 100：0.95：0.08：
1.15：0.15：0.06：5.50：0.05：4.00：0.24：0.12.
3) above-mentioned second molten metal is added into the first molten metal, and the temperature of mixed system is adjusted to 960 DEG C
To carry out melting 2h, slagging agent D2 is then added into mixed system, and (weight ratio of mixed system and slagging agent is 100：5) simultaneously
Slag hitting is carried out in 1150 DEG C and handles 1h, is finally cooled to 25 DEG C according to the rate of 25 DEG C/min to be made for the anti-of automotive hub
Impact aluminium alloy A2.
Embodiment 3
1) aluminium, magnesium, chromium, zinc, palladium and vanadium are heat-treated in 950 DEG C and vacuum degree to carry out first under conditions of 0.8MPa
8h, inert gas is then passed through into system, and (neon, stream pressure 1.5MPa, pulse frequency 40KHz, air velocity is not
More than 200m/s), system is then cooled to 680 DEG C so that the first molten metal is made according to the rate of 15 DEG C/min.
2) tin, silver, iron, germanium and scandium are heat-treated 10h in 1200 DEG C and vacuum degree to carry out second under conditions of 0.8MPa
The second molten metal is made；Wherein, the weight ratio of aluminium, magnesium, chromium, zinc, palladium, vanadium, tin, silver, iron, germanium and scandium is 100：1.35：
0.28：1.65：0.40：0.12：6.10：0.12：4.85：0.30：0.16.
3) above-mentioned second molten metal is added into the first molten metal, and the temperature of mixed system is adjusted to 1000 DEG C
To carry out melting 4h, slagging agent D3 is then added into mixed system, and (weight ratio of mixed system and slagging agent is 100：8) simultaneously
Slag hitting is carried out in 1200 DEG C and handles 3h, is finally cooled to 25 DEG C according to the rate of 35 DEG C/min to be made for the anti-of automotive hub
Impact aluminium alloy A3.
Comparative example 1
It carries out that aluminium alloy B1 is made according to the method for embodiment 1, unlike, inert gas is not filled in step 1).
Detect example 1
Above-mentioned aluminium alloy is carried out to the detection of mechanical strength, concrete outcome is shown in Table 1.
Table 1
| Tensile strength/MPa | Yield strength/MPa | Elongation percentage/% | Impact flexibility/Jcm-2 | |
| A1 | 580 | 415 | 17.7 | 95 |
| A2 | 582 | 420 | 16.9 | 93 |
| A3 | 584 | 419 | 17.5 | 92 |
| B1 | 523 | 389 | 14.8 | 65 |
By above-described embodiment, comparative example and detection example it is found that aluminium alloy provided by the invention has excellent machinery strong
Degree, especially impact strength.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above
Detail can carry out a variety of simple variants to technical scheme of the present invention within the scope of the technical concept of the present invention, this
A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (2)
1. a kind of preparation method of shock resistance aluminium alloy for automotive hub, which is characterized in that comprise the steps of：
1) aluminium, magnesium, chromium, zinc, palladium and vanadium are carried out to the first heat treatment at 850-950 DEG C, indifferent gas is then passed through into system
Then system is cooled to the 660-680 DEG C of process the first molten metal is made by body；
2) tin, silver, iron, germanium and scandium are carried out to process of second heat treatment the second molten metal is made at 1150-1200 DEG C；
3) second molten metal is added into first molten metal, and the temperature of mixed system is adjusted to 960-
1000 DEG C are added slagging agent into the mixed system to carry out melting, then and carry out slag hitting processing, finally cool down and are used with being made
In the process of the shock resistance aluminium alloy of automotive hub；
Wherein, the dosage of the aluminium relative to 100 parts by weight, the magnesium is 0.95-1.35 parts by weight, and the dosage of the chromium is
The dosage of 0.08-0.28 parts by weight, the zinc is 1.15-1.65 parts by weight, and the dosage of the palladium is 0.15-0.40 parts by weight,
The dosage of the vanadium is 0.06-0.12 parts by weight, and the dosage of the tin is 5.50-6.10 parts by weight, and the dosage of the silver is
The dosage of 0.05-0.12 parts by weight, the iron is 4.00-4.85 parts by weight, and the dosage of the germanium is 0.24-0.30 parts by weight,
The dosage of the scandium is 0.12-0.16 parts by weight；In process 1) in, first heat treatment at least meets the following conditions：At heat
The reason time is 4-8h, vacuum degree 0.5-0.8MPa；In process 2) in, second heat treatment at least meets the following conditions：Heat
Processing time is 7-10h, vacuum degree 0.5-0.8MPa；In process 3) in, relative to the mixed system of 100 parts by weight,
The dosage of the slagging agent is 5-8 parts by weight；The slagging agent contains silica, sodium chloride, sodium sulphate, sodium carbonate, chlorination
Zinc, prodan, opal and muscovite；Relative to the silica of 100 parts by weight, the content of the sodium chloride is 5-
The content of 12 parts by weight, the sodium sulphate is 3-8 parts by weight, and the content of the sodium carbonate is 1.5-4 parts by weight, the zinc chloride
Content be 8-13 parts by weight, the content of the prodan is 1-3 parts by weight, and the content of the opal is that 1.5-3.5 is weighed
Part is measured, the content of the muscovite is 2.5-5 parts by weight；In process 1) in, the inert gas at least meets the following conditions：Gas
Flowing pressure is 1-1.5MPa, and pulse frequency 15-40KHz, air velocity is no more than 200m/s；In process 1) in, will be described
During system carries out cooling, cooling rate is 5-15 DEG C/min；In process 3) in, the time of the melting is 2-4h；
Process 3) in, the slag hitting processing at least meets the following conditions：Slag hitting temperature is 1150-1200 DEG C, and the slag hitting time is 1-3h；
During the mixed system is cooled down, cooling rate is 25-35 DEG C/min.
2. a kind of shock resistance aluminium alloy for automotive hub, which is characterized in that the shock resistance aluminium alloy passes through claim 1
The method is prepared.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB605095A (en) * | 1945-12-14 | 1948-07-15 | Tennyson Fraser Bradbury | Aluminium base alloys |
| GB625515A (en) * | 1947-08-06 | 1949-06-29 | Tennyson Fraser Bradbury | An improved aluminium base alloy |
| CN101758203A (en) * | 2008-11-12 | 2010-06-30 | 郑东海 | Process for smelting and lower-pressure casting of aluminum alloy wheel hub |
| CN102978448A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Ba-RE aluminum alloy, and preparation method and power cable thereof |
| CN104818398A (en) * | 2015-03-23 | 2015-08-05 | 芜湖黄燕实业有限公司 | Aluminum alloy for wheel hub and preparation method thereof, and aluminum alloy wheel hub |
| CN104999052A (en) * | 2015-08-14 | 2015-10-28 | 芜湖黄燕实业有限公司 | Low-pressure casting method of aluminum alloy hubs |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB605095A (en) * | 1945-12-14 | 1948-07-15 | Tennyson Fraser Bradbury | Aluminium base alloys |
| GB625515A (en) * | 1947-08-06 | 1949-06-29 | Tennyson Fraser Bradbury | An improved aluminium base alloy |
| CN101758203A (en) * | 2008-11-12 | 2010-06-30 | 郑东海 | Process for smelting and lower-pressure casting of aluminum alloy wheel hub |
| CN102978448A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Ba-RE aluminum alloy, and preparation method and power cable thereof |
| CN104818398A (en) * | 2015-03-23 | 2015-08-05 | 芜湖黄燕实业有限公司 | Aluminum alloy for wheel hub and preparation method thereof, and aluminum alloy wheel hub |
| CN104999052A (en) * | 2015-08-14 | 2015-10-28 | 芜湖黄燕实业有限公司 | Low-pressure casting method of aluminum alloy hubs |
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