CN105950894A - High-strength aluminum alloy for automobile hub and preparing method of high-strength aluminum alloy - Google Patents
High-strength aluminum alloy for automobile hub and preparing method of high-strength aluminum alloy Download PDFInfo
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- CN105950894A CN105950894A CN201610423841.2A CN201610423841A CN105950894A CN 105950894 A CN105950894 A CN 105950894A CN 201610423841 A CN201610423841 A CN 201610423841A CN 105950894 A CN105950894 A CN 105950894A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims abstract description 34
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 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
- 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
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 13
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 13
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 13
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-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
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 13
- 239000011777 magnesium Substances 0.000 claims abstract description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 13
- 239000011733 molybdenum Substances 0.000 claims abstract description 13
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 13
- 229910052709 silver Inorganic materials 0.000 claims abstract description 13
- 239000004332 silver Substances 0.000 claims abstract description 13
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 13
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 13
- 239000011701 zinc Substances 0.000 claims abstract description 13
- 238000011282 treatment Methods 0.000 claims abstract 2
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 238000002360 preparation method Methods 0.000 claims description 19
- 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
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 14
- 239000002893 slag Substances 0.000 claims description 14
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 14
- 229910052756 noble gas Inorganic materials 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 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
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 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 7
- 235000005074 zinc chloride Nutrition 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 239000011022 opal Substances 0.000 claims description 5
- 235000017550 sodium carbonate Nutrition 0.000 claims description 5
- 235000002639 sodium chloride Nutrition 0.000 claims description 5
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 2
- 238000010009 beating Methods 0.000 claims 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052718 tin Inorganic materials 0.000 abstract 1
- 239000011135 tin Substances 0.000 abstract 1
- 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
- 238000001514 detection method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 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
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 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
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a high-strength aluminum alloy for an automobile hub and a preparing method of the high-strength aluminum alloy. The method comprises the steps that firstly, aluminum, magnesium, chromium, zinc, palladium and antimony are subjected to primary heat treatment at the temperature of 850 DEG C to 950 DEG C, then a system is inflated with inert gases, and then the system is cooled to the temperature of 660 DEG C to 680 DEG C, so that first molten metal is prepared; secondly, tin, silver, iron, molybdenum and yttrium are subjected to secondary heat treatment at the temperature of 1,150 DEG C to 1,200 DEG C, and second molten metal is prepared; and thirdly, the second molten metal is added into the first molten metal, the temperature of a mixed system is adjusted to 960 DEG C to 1,000 DEG C, smelting is conducted, a fluxing medium is added into the mixed system to conduct fluxing treatment, and finally, cooling is conducted to obtain the high-strength aluminum alloy for the automobile hub. The high-strength aluminum alloy prepared through the method has excellent mechanical strength, especially the anti-impact performance; and meanwhile in the preparing method, raw materials are easy to obtain, the working procedure is simple, and wide usage is facilitated.
Description
Technical field
The present invention relates to aluminium alloy, in particular it relates to a kind of high-strength aluminum alloy for automotive hub and
Its preparation method.
Background technology
Wheel hub, in another name wheel rim, i.e. tire wide in order to support the drum-shaped of tire, center is assemblied on axle
Parts.Common automotive hub has steel wheel hub and aluminium alloy matter wheel hub.Aluminium alloy wheel hub has following
Advantage: elegant in appearance；Light, fuel-efficient；Expansion and contraction is high, good springiness；Heat conductivity is good；Protect circle property good,
It is unlikely to deform, is suitable for running at high speed；Good springiness, improves the ride comfort during vehicle travels, it is easier to absorb
Vibration in motion and noise.But, aluminium alloy matter wheel hub poor durability, once run into the collision of hard thing
Rear deformation can not be repaired.
Summary of the invention
It is an object of the invention to provide a kind of high-strength aluminum alloy for automotive hub and preparation method thereof,
The high-strength aluminum alloy prepared by the method has the mechanical strength of excellence, especially shock resistance；
This preparation method raw material is easy to get simultaneously, operation is simple, be easy to be widely used.
To achieve these goals, the invention provides a kind of high-strength aluminum alloy for automotive hub
Preparation method, the method includes:
1) aluminum, magnesium, chromium, zinc, palladium and antimony are carried out at 850-950 DEG C the first heat treatment, then to
System is passed through noble gas, then system is cooled to 660-680 DEG C with the work preparing the first molten metal
Sequence；
2) stannum, silver, ferrum, molybdenum and yttrium are carried out at 1150-1200 DEG C the second heat treatment to prepare second
The operation of molten metal；
3) the second molten metal is added to the first molten metal, and the temperature of mixed system is regulated extremely
960-1000 DEG C, to carry out melting, then adds slagging agent in mixed system and carries out slag hitting process, finally
Cooling is with the operation preparing the high-strength aluminum alloy for automotive hub.
Present invention also offers a kind of high-strength aluminum alloy for automotive hub, this high-strength aluminum alloy leads to
Cross above-mentioned method to be prepared.
By technique scheme, preparation method that the present invention provides particularly as follows: be first by aluminum, magnesium,
Chromium, zinc, palladium and antimony heat treatment, be then passed through noble gas and cool down, so first gradually cooled down
Molten metal is formed gas passage；Secondly, stannum, silver, ferrum, molybdenum and yttrium are carried out the second heat treatment with system
Obtain the second molten metal；Again, the second molten metal is added to the first molten metal, such second molten metal
Can effectively enter in the gas passage in the first molten metal and be filled with, be made by surface chemistry simultaneously
Can ideally combine both；Finally, in mixed system, add slagging agent and carry out slag hitting process, cold
But to prepare the high-strength aluminum alloy for automotive hub.The mechanical strength of this kind of aluminium alloy is high, especially
Shock resistance is superior, effectively overcomes the defect of aluminium alloy matter wheel hub poor durability in prior art,
And then improve the suitability of aluminium alloy matter wheel hub.It addition, this preparation method raw material is easy to get, operation simple,
It is easy to be widely used.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Detailed description of the invention
Hereinafter the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
The invention provides the preparation method of a kind of high-strength aluminum alloy for automotive hub, the method bag
Include:
1) aluminum, magnesium, chromium, zinc, palladium and antimony are carried out at 850-950 DEG C the first heat treatment, then to
System is passed through noble gas, then system is cooled to 660-680 DEG C with the work preparing the first molten metal
Sequence；
2) stannum, silver, ferrum, molybdenum and yttrium are carried out at 1150-1200 DEG C the second heat treatment to prepare second
The operation of molten metal；
3) the second molten metal is added to the first molten metal, and the temperature of mixed system is regulated extremely
960-1000 DEG C, to carry out melting, then adds slagging agent in mixed system and carries out slag hitting process, finally
Cooling is with the operation preparing the high-strength aluminum alloy for automotive hub.
In the present invention, the consumption of each material can select in wide scope, but prepared in order to improve
The mechanical strength of aluminium alloy, it is preferable that relative to the aluminum of 100 weight portions, the consumption of magnesium is
0.95-1.35 weight portion, the consumption of chromium is 0.08-0.28 weight portion, and the consumption of zinc is 1.15-1.65 weight
Part, the consumption of palladium is 0.15-0.40 weight portion, and the consumption of antimony is 0.22-0.36 weight portion, the consumption of stannum
For 5.50-6.10 weight portion, the consumption of silver is 0.05-0.12 weight portion, and the consumption of ferrum is 4.00-4.85 weight
Amount part, the consumption of molybdenum is 0.05-0.15 weight portion, and the consumption of yttrium is 0.04-0.08 weight portion.
Operation 1 in the present invention) in, the actual conditions of the first heat treatment can select in wide scope,
But in order to improve the mechanical strength of prepared aluminium alloy, it is preferable that the first heat treatment at least meet with
Lower condition: heat treatment time is 4-8h, vacuum is 0.5-0.8MPa.
Operation 1 in the present invention) in, the actual conditions of noble gas can select in wide scope,
But in order to improve the mechanical strength of prepared aluminium alloy, it is preferable that below noble gas at least meets
Condition: stream pressure is 1-1.5MPa, pulse frequency is 15-40KHz, and air velocity is not more than 200m/s.
Operation 1 in the present invention) in, the actual conditions of noble gas can select in wide scope,
But in order to improve the mechanical strength of prepared aluminium alloy, it is preferable that noble gas is selected from argon, helium
One or more in gas, nitrogen and neon.
Operation 1 in the present invention) in, cooldown rate can select in wide scope, but in order to carry
High prepare the mechanical strength of aluminium alloy, it is preferable that during system is cooled down, cooling
Speed is 5-15 DEG C/min.
Operation 2 in the present invention) in, the actual conditions of the second heat treatment can select in wide scope,
But in order to improve the mechanical strength of prepared aluminium alloy, it is preferable that the second heat treatment at least meet with
Lower condition: heat treatment time is 7-10h, vacuum is 0.5-0.8MPa.
Operation 3 in the present invention) in, the time of melting can select in wide scope, but in order to
Improve prepare the mechanical strength of aluminium alloy, it is preferable that the time of melting is 2-4h.
Operation 3 in the present invention) in, the actual conditions that slag hitting processes can select in wide scope,
But in order to improve the mechanical strength of prepared aluminium alloy, it is preferable that below slag hitting processes and at least meets
Condition: slag hitting temperature is 1150-1200 DEG C, the slag hitting time is 1-3h.
Operation 3 in the present invention) in, the actual conditions of cooldown rate can select in wide scope,
But in order to improve the mechanical strength of prepared aluminium alloy, it is preferable that in the mistake that mixed system is cooled down
Cheng Zhong, cooldown rate is 25-35 DEG C/min.
Operation 3 in the present invention) in, the consumption of slagging agent can select in wide scope, but is
Improve prepare the mechanical strength of aluminium alloy, it is preferable that relative to the mixed system of 100 weight portions,
The consumption of slagging agent is 5-8 weight portion.
Operation 3 in the present invention) in, the concrete component of slagging agent can select in wide scope, but
It is the mechanical strength in order to improve prepared aluminium alloy, it is preferable that in operation 3) in, slagging agent contains
There are silicon dioxide, sodium chloride, sodium sulfate, sodium carbonate, zinc chloride, prodan, opal and white clouds
Female.
In above-mentioned slagging agent, the concrete content of each component can select in wide scope, but in order to
Improve prepare the mechanical strength of aluminium alloy, it is preferable that in operation 3) in, relative to 100 weight
The silicon dioxide of part, the content of sodium chloride is 5-12 weight portion, and the content of sodium sulfate is 3-8 weight portion,
The content of sodium carbonate is 1.5-4 weight portion, and the content of zinc chloride is 8-13 weight portion, containing of prodan
Amount is 1-3 weight portion, and opaline content is 1.5-3.5 weight portion, and the content of white mica is 2.5-5 weight
Amount part.
Present invention also offers a kind of high-strength aluminum alloy for automotive hub, this high-strength aluminum alloy leads to
Cross above-mentioned method to be prepared.
Hereinafter will be described the present invention by embodiment.
Preparation example 1
By silicon dioxide, sodium chloride, sodium sulfate, sodium carbonate, zinc chloride, prodan, opal and
White mica is mixed to prepare slagging agent D1 according to the weight ratio of 100:10:5:2:10:2:2.5:4.
Preparation example 2
By silicon dioxide, sodium chloride, sodium sulfate, sodium carbonate, zinc chloride, prodan, opal and
White mica is mixed to prepare slagging agent D2 according to the weight ratio of 100:5:3:1.5:8:1:1.5:2.5.
Preparation example 3
By silicon dioxide, sodium chloride, sodium sulfate, sodium carbonate, zinc chloride, prodan, opal and
White mica is mixed to prepare slagging agent D3 according to the weight ratio of 100:12:8:4:13:3:3.5:5.
Embodiment 1
1) aluminum, magnesium, chromium, zinc, palladium and antimony are entered under conditions of 900 DEG C and vacuum are 0.7MPa
Row the first heat treatment 5h, be then passed through in system noble gas (argon, stream pressure are 1.3MPa,
Pulse frequency is 30KHz, and air velocity is not more than 200m/s), then by system according to 10 DEG C/min's
Speed is cooled to 670 DEG C to prepare the first molten metal.
2) stannum, silver, ferrum, molybdenum and yttrium are carried out under conditions of 1180 DEG C and vacuum are 0.7MPa
Second heat treatment 8h is to prepare the second molten metal；Wherein, aluminum, magnesium, chromium, zinc, palladium, antimony, stannum,
The weight ratio of silver, ferrum, molybdenum and yttrium is 100:1.15:0.12:1.45:0.30:0.28:5.80:0.09:
4.35:0.08:0.07.
3) above-mentioned second molten metal is added to the first molten metal, and the temperature of mixed system is adjusted
Joint to 980 DEG C to carry out melting 3h, then in mixed system add slagging agent D1 (mixed system with
The weight ratio of slagging agent is 100:7) and carry out slag hitting process 2h, finally according to 30 DEG C/min in 1180 DEG C
Speed be cooled to 25 DEG C to prepare the high-strength aluminum alloy A1 for automotive hub.
Embodiment 2
1) aluminum, magnesium, chromium, zinc, palladium and antimony are entered under conditions of 850 DEG C and vacuum are 0.5MPa
Row the first heat treatment 4h, be then passed through in system noble gas (nitrogen, stream pressure are 1MPa,
Pulse frequency is 15KHz, and air velocity is not more than 200m/s), then by system according to 5 DEG C/min's
Speed is cooled to 660 DEG C to prepare the first molten metal.
2) stannum, silver, ferrum, molybdenum and yttrium are carried out under conditions of 1150 DEG C and vacuum are 0.5MPa
Second heat treatment 7h is to prepare the second molten metal；Wherein, aluminum, magnesium, chromium, zinc, palladium, antimony, stannum,
The weight ratio of silver, ferrum, molybdenum and yttrium is 100:0.95:0.08:1.15:0.15:0.22:5.50:0.05:
4.00:0.05:0.04.
3) above-mentioned second molten metal is added to the first molten metal, and the temperature of mixed system is adjusted
Joint to 960 DEG C to carry out melting 2h, then in mixed system add slagging agent D2 (mixed system with
The weight ratio of slagging agent is 100:5) and carry out slag hitting process 1h, finally according to 25 DEG C/min in 1150 DEG C
Speed be cooled to 25 DEG C to prepare the high-strength aluminum alloy A2 for automotive hub.
Embodiment 3
1) aluminum, magnesium, chromium, zinc, palladium and antimony are entered under conditions of 950 DEG C and vacuum are 0.8MPa
Row the first heat treatment 8h, be then passed through in system noble gas (neon, stream pressure are 1.5MPa,
Pulse frequency is 40KHz, and air velocity is not more than 200m/s), then by system according to 15 DEG C/min's
Speed is cooled to 680 DEG C to prepare the first molten metal.
2) stannum, silver, ferrum, molybdenum and yttrium are carried out under conditions of 1200 DEG C and vacuum are 0.8MPa
Second heat treatment 10h is to prepare the second molten metal；Wherein, aluminum, magnesium, chromium, zinc, palladium, antimony, stannum,
The weight ratio of silver, ferrum, molybdenum and yttrium is 100:1.35:0.28:1.65:0.40:0.36:6.10:0.12:
4.85:0.15:0.08.
3) above-mentioned second molten metal is added to the first molten metal, and the temperature of mixed system is adjusted
Joint to 1000 DEG C to carry out melting 4h, then in mixed system add slagging agent D3 (mixed system with
The weight ratio of slagging agent is 100:8) and carry out slag hitting process 3h, finally according to 35 DEG C/min in 1200 DEG C
Speed be cooled to 25 DEG C to prepare the high-strength aluminum alloy A3 for automotive hub.
Comparative example 1
Carry out preparing aluminium alloy B1, except for the difference that, step 1 according to the method for embodiment 1) in be not filled with
Noble gas.
Detection example 1
Above-mentioned aluminium alloy carries out the detection of mechanical strength, and concrete outcome is shown in Table 1.
Table 1
| Hot strength/MPa | Yield strength/MPa | Elongation percentage/% | Impact flexibility/J cm-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, the aluminium alloy that the present invention provides has excellence
Mechanical strength, especially impact strength.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, can be to the technical side of the present invention
Case carries out multiple simple variant, and these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, various possible compound modes are illustrated by the present invention the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (9)
1. the preparation method for the high-strength aluminum alloy of automotive hub, it is characterised in that including:
1) aluminum, magnesium, chromium, zinc, palladium and antimony are carried out at 850-950 DEG C the first heat treatment, then to
System is passed through noble gas, then system is cooled to 660-680 DEG C with the work preparing the first molten metal
Sequence；
2) stannum, silver, ferrum, molybdenum and yttrium are carried out at 1150-1200 DEG C the second heat treatment to prepare second
The operation of molten metal；
3) described second molten metal is added to described first molten metal, and by the temperature of mixed system
Degree regulation to carry out melting to 960-1000 DEG C, then adds slagging agent in described mixed system and carries out beating
Slag treatment, finally cools down to prepare the operation of the high-strength aluminum alloy for automotive hub.
Preparation method the most according to claim 1, wherein, relative to the aluminum of 100 weight portions,
The consumption of described magnesium is 0.95-1.35 weight portion, and the consumption of described chromium is 0.08-0.28 weight portion, described
The consumption of zinc is 1.15-1.65 weight portion, and the consumption of described palladium is 0.15-0.40 weight portion, described antimony
Consumption is 0.22-0.36 weight portion, and the consumption of described stannum is 5.50-6.10 weight portion, the consumption of described silver
For 0.05-0.12 weight portion, the consumption of described ferrum is 4.00-4.85 weight portion, and the consumption of described molybdenum is
0.05-0.15 weight portion, the consumption of described yttrium is 0.04-0.08 weight portion.
Preparation method the most according to claim 1 and 2, wherein, in operation 1) in, described
One heat treatment at least meets following condition: heat treatment time is 4-8h, and vacuum is 0.5-0.8MPa.
Preparation method the most according to claim 3, wherein, in operation 1) in, described indifferent gas
Body at least meets following condition: stream pressure is 1-1.5MPa, and pulse frequency is 15-40KHz, air-flow
Speed is not more than 200m/s.
Preparation method the most according to claim 4, wherein, in operation 1) in, by described body
During system cools down, cooldown rate is 5-15 DEG C/min.
6. according to the preparation method described in claim 4 or 5, wherein, in operation 2) in, described
Two heat treatments at least meet following condition: heat treatment time is 7-10h, and vacuum is 0.5-0.8MPa.
Preparation method the most according to claim 6, wherein, in operation 3) in, described melting
Time is 2-4h；
Preferably, in operation 3) in, described slag hitting processes and at least meets following condition: slag hitting temperature is
1150-1200 DEG C, the slag hitting time is 1-3h；
It is highly preferred that during being cooled down by described mixed system, cooldown rate is 25-35 DEG C/min.
Preparation method the most according to claim 7, wherein, in operation 3) in, relative to 100
The described mixed system of weight portion, the consumption of described slagging agent is 5-8 weight portion；
Preferably, described slagging agent contain silicon dioxide, sodium chloride, sodium sulfate, sodium carbonate, zinc chloride,
Prodan, opal and white mica；
It is highly preferred that relative to the described silicon dioxide of 100 weight portions, the content of described sodium chloride is 5-12
Weight portion, the content of described sodium sulfate is 3-8 weight portion, and the content of described sodium carbonate is 1.5-4 weight
Part, the content of described zinc chloride is 8-13 weight portion, and the content of described prodan is 1-3 weight portion,
Described opaline content is 1.5-3.5 weight portion, and the content of described white mica is 2.5-5 weight portion.
9. the high-strength aluminum alloy for automotive hub, it is characterised in that described high intensity aluminum closes
Gold is prepared by the method described in any one in claim 1-8.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913931A (en) * | 2018-06-25 | 2018-11-30 | 宁波展欣汽车科技发展有限公司 | The preparation method of aluminium alloy automobile hub |
| CN108950313A (en) * | 2018-06-20 | 2018-12-07 | 宁波展欣汽车科技发展有限公司 | The preparation method of high-strength aluminum alloy automotive hub |
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| 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 |
| JPS5698586A (en) * | 1980-01-10 | 1981-08-08 | Taiho Kogyo Co Ltd | Swash plate compressor |
| 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 |
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2016
- 2016-06-16 CN CN201610423841.2A patent/CN105950894B/en not_active Expired - Fee Related
Patent Citations (5)
| 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 |
| JPS5698586A (en) * | 1980-01-10 | 1981-08-08 | Taiho Kogyo Co Ltd | Swash plate compressor |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108950313A (en) * | 2018-06-20 | 2018-12-07 | 宁波展欣汽车科技发展有限公司 | The preparation method of high-strength aluminum alloy automotive hub |
| CN108913931A (en) * | 2018-06-25 | 2018-11-30 | 宁波展欣汽车科技发展有限公司 | The preparation method of aluminium alloy automobile hub |
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