CN106995895A - It is a kind of to be used to make novel aluminum alloy of automobile bushing and preparation method thereof - Google Patents
It is a kind of to be used to make novel aluminum alloy of automobile bushing and preparation method thereof Download PDFInfo
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- CN106995895A CN106995895A CN201710223247.3A CN201710223247A CN106995895A CN 106995895 A CN106995895 A CN 106995895A CN 201710223247 A CN201710223247 A CN 201710223247A CN 106995895 A CN106995895 A CN 106995895A
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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
- C22C21/10—Alloys based on aluminium with zinc 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
- 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
- C22F1/053—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 of alloys with zinc as the next major constituent
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- Crystallography & Structural Chemistry (AREA)
- Body Structure For Vehicles (AREA)
- Vehicle Body Suspensions (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
The invention discloses a kind of novel aluminum alloy for being used to make automobile bushing and preparation method thereof, the alloy is made up of the raw material below according to mass percent：Zn8.2 ~ 9.5%, Mg1.4 ~ 2.8%, Cu1.1 ~ 2.7%, Zr0.08 ~ 0.17%, Fe0.11 ~ 0.54%, Si0.10 ~ 0.37%, Er0.02 ~ 0.08%, surplus is Al.Raw material is put into melting in intermediate frequency furnace after dispensing, temperature control refines 2h, tapping casting ingot at 770 DEG C, ingot casting is then carried out to 450 DEG C of insulation 12h Homogenization Treatments in Muffle furnace, hot rolling is carried out to ingot casting using milling train, rolling temperature is 420 DEG C, strain rate 1s‑1, deflection 80%, to sample progress solution treatment in Muffle furnace, solid solution system is 420 DEG C of insulation 1.5h, heats up 30min to 460 DEG C, is incubated 1h, timeliness is carried out in aging furnace, timeliness is using three-step aging heat treatment.The novel aluminum alloy good mechanical performance for being used to make automobile bushing of the present invention, service life is long, and preparation technology is simple, and production cost is relatively low, suitable for industrialized production.
Description
Technical field
The present invention relates to technical field of alloy, and in particular to a kind of novel aluminum alloy and its system for being used to make automobile bushing
Preparation Method.
Background technology
In automobile manufacture technology field, the consideration with the increasingly mature of technology and to the saving energy, automobile light weight
Change a general orientation for having become automobile making.Aluminium alloy have small proportion, easy processing, heat conductivility good, specific strength and
The outstanding feature such as specific stiffness is higher, is the most alloy material of most widely used, consumption in current light-alloy.Aluminium alloy is in automobile
Proportion also more and more higher in the manufacture material of parts.
Bushing is exactly the ring set for playing pad effect, and in valve applications field, bushing wraps valve rod within bonnet,
It is general to use the corrosion materials such as polytetrafluoroethylene (PTFE) or graphite, for sealing function.It is indispensable one zero of automobile
Part, some bushings work near wheel, replace traditional material to make using aluminium alloy, because aluminium alloy possesses good heat conduction
Performance, can effectively improve the service life of bushing.Moreover it is possible to lift the mechanical performance of bushing.
The content of the invention
Present invention aims at a kind of novel aluminum alloy for being used to make automobile bushing and preparation method thereof is provided, to solve
The problem of being mentioned in above-mentioned background.
To achieve the above object, the present invention provides following technical scheme：
A kind of novel aluminum alloy for being used to make automobile bushing, is made up of the raw material below according to mass percent：Zn8.2~
9.5%, Mg1.4 ~ 2.8%, Cu1.1 ~ 2.7%, Zr0.08 ~ 0.17%, Fe0.11 ~ 0.54%, Si0.10 ~ 0.37%, Er0.02 ~
0.08%, surplus is Al.
It is used as further scheme of the invention：The novel aluminum alloy for being used to make automobile bushing, by below according to matter
Measure the raw material composition of percentage：Zn8.5 ~ 9.1%, Mg1.7 ~ 2.5%, Cu1.6 ~ 2.2%, Zr0.11 ~ 0.15%, Fe0.16 ~
0.38%, Si0.18 ~ 0.26%, Er0.03 ~ 0.06%, surplus are Al.
It is used as further scheme of the invention：The novel aluminum alloy for being used to make automobile bushing, by below according to matter
Measure the raw material composition of percentage：Zn8.8%, Mg1.9%, Cu1.8%, Zr0.12%, Fe0.25%, Si0.23%, Er0.04%, surplus
For Al.
A kind of novel aluminum alloy preparation method for being used to make automobile bushing, comprises the following steps：
1）Dispensing：Carried out according to the novel aluminum alloy raw material composition for being used to make automobile bushing and its mass percent proportioning
Dispensing；
2）Founding：Raw material is put into melting in intermediate frequency furnace, temperature control refines 2h, tapping casting ingot at 770 DEG C；
3）Homogenization：Ingot casting is carried out to 450 DEG C of insulation 12h Homogenization Treatments in Muffle furnace；
4）Thermal deformation：Hot rolling is carried out to ingot casting using milling train, rolling temperature is 420 DEG C, strain rate 1s-1, deflection 80%；
5）Solid solution：Solution treatment is carried out to sample in Muffle furnace, solid solution system is 420 DEG C of insulation 1.5h, and heating 30min is extremely
460 DEG C, it is incubated 1h；
6）Timeliness：Carried out in aging furnace, timeliness is heat-treated using three-step aging, one-level timeliness uses 100 ~ 120 DEG C, insulation 16
~ 24h, secondary time effect uses 170 ~ 220 DEG C, is incubated 1 ~ 3h, and three-step aging uses 120 DEG C, is incubated 24h.
It is used as further scheme of the invention：Step 5）In, cooled after solution treatment using oil quenching.
It is used as further scheme of the invention：Step 6）In, Ageing Treatment is carried out in aging furnace, when timeliness uses three-level
Effect heat treatment, one-level timeliness uses 120 DEG C, is incubated 18h, and secondary time effect uses 180 DEG C, is incubated 1h, and three-step aging uses 120
DEG C, it is incubated 24h.
It is used as further scheme of the invention：Step 6）In, the heating rate of one-level aging temp to secondary time effect temperature
For 5 DEG C/s, the rate of temperature fall of secondary time effect temperature to three-step aging temperature is 5 DEG C/s.
The novel aluminum alloy for being used to make automobile bushing of the present invention, by experimental test, its physical and mechanical properties is as follows：
1st, tensile strength (σb)：700~750MPa
2nd, hardness (HV)：180~250
3rd, elongation percentage (δs)：7.2%~9.6%
4th, modulus of elasticity (E)：75~86GPa
5th, electrical conductivity（MS/m）：20~28
The novel aluminum alloy for being used to make automobile bushing of the present invention has good modulus of elasticity and electrical conductivity, and mechanical performance is excellent
Good, service life is long.The preparation technology of the present invention is simple, and production cost is relatively low, suitable for industrialized production.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
Embodiment 1
In the embodiment of the present invention, a kind of novel aluminum alloy for being used to make automobile bushing, by below according to the original of mass percent
Material composition：Zn8.2%, Mg1.4%, Cu1.1%, Zr0.08%, Fe0.11%, Si0.10%, Er0.02%, surplus are Al.
During preparation, comprise the following steps：
1）Dispensing：Carried out according to the novel aluminum alloy raw material composition for being used to make automobile bushing and its mass percent proportioning
Dispensing；
2）Founding：Raw material is put into melting in intermediate frequency furnace, temperature control refines 2h, tapping casting ingot at 770 DEG C；
3）Homogenization：Ingot casting is carried out to 450 DEG C of insulation 12h Homogenization Treatments in Muffle furnace；
4）Thermal deformation：Hot rolling is carried out to ingot casting using milling train, rolling temperature is 420 DEG C, strain rate 1s-1, deflection 80%；
5）Solid solution：Solution treatment is carried out to sample in Muffle furnace, solid solution system is 420 DEG C of insulation 1.5h, and heating 30min is extremely
460 DEG C, it is incubated 1h；
6）Timeliness：Carried out in aging furnace, timeliness is heat-treated using three-step aging, one-level timeliness uses 100 DEG C, be incubated 16h, two
Level timeliness uses 170 DEG C, is incubated 1h, and three-step aging uses 120 DEG C, is incubated 24h.
Embodiment 2
In the embodiment of the present invention, a kind of novel aluminum alloy for being used to make automobile bushing, by below according to the original of mass percent
Material composition：Zn9.5%, Mg2.8%, Cu2.7%, Zr0.17%, Fe0.54%, Si0.37%, Er0.08%, surplus are Al.
During preparation, comprise the following steps：
1）Dispensing：Carried out according to the novel aluminum alloy raw material composition for being used to make automobile bushing and its mass percent proportioning
Dispensing；
2）Founding：Raw material is put into melting in intermediate frequency furnace, temperature control refines 2h, tapping casting ingot at 770 DEG C；
3）Homogenization：Ingot casting is carried out to 450 DEG C of insulation 12h Homogenization Treatments in Muffle furnace；
4）Thermal deformation：Hot rolling is carried out to ingot casting using milling train, rolling temperature is 420 DEG C, strain rate 1s-1, deflection 80%；
5）Solid solution：Solution treatment is carried out to sample in Muffle furnace, solid solution system is 420 DEG C of insulation 1.5h, and heating 30min is extremely
460 DEG C, it is incubated 1h；
6）Timeliness：Carried out in aging furnace, timeliness is heat-treated using three-step aging, one-level timeliness uses 120 DEG C, be incubated 24h, two
Level timeliness uses 220 DEG C, is incubated 3h, and three-step aging uses 120 DEG C, is incubated 24h.
Embodiment 3
In the embodiment of the present invention, a kind of novel aluminum alloy for being used to make automobile bushing, by below according to the original of mass percent
Material composition：Zn8.8%, Mg1.9%, Cu1.8%, Zr0.12%, Fe0.25%, Si0.23%, Er0.04%, surplus are Al.
During preparation, comprise the following steps：
1）Dispensing：Carried out according to the novel aluminum alloy raw material composition for being used to make automobile bushing and its mass percent proportioning
Dispensing；
2）Founding：Raw material is put into melting in intermediate frequency furnace, temperature control refines 2h, tapping casting ingot at 770 DEG C；
3）Homogenization：Ingot casting is carried out to 450 DEG C of insulation 12h Homogenization Treatments in Muffle furnace；
4）Thermal deformation：Hot rolling is carried out to ingot casting using milling train, rolling temperature is 420 DEG C, strain rate 1s-1, deflection 80%；
5）Solid solution：Solution treatment is carried out to sample in Muffle furnace, solid solution system is 420 DEG C of insulation 1.5h, and heating 30min is extremely
460 DEG C, it is incubated 1h；
6）Timeliness：Carried out in aging furnace, timeliness is heat-treated using three-step aging, one-level timeliness uses 120 DEG C, be incubated 18h, two
Level timeliness uses 180 DEG C, is incubated 1h, and three-step aging uses 120 DEG C, is incubated 24h.
Embodiment 4
In the embodiment of the present invention, a kind of novel aluminum alloy for being used to make automobile bushing, by below according to the original of mass percent
Material composition：Zn8.8%, Mg1.9%, Cu1.8%, Zr0.12%, Fe0.25%, Si0.23%, Er0.04%, surplus are Al.
During preparation, comprise the following steps：
1）Dispensing：Carried out according to the novel aluminum alloy raw material composition for being used to make automobile bushing and its mass percent proportioning
Dispensing；
2）Founding：Raw material is put into melting in intermediate frequency furnace, temperature control refines 2h, tapping casting ingot at 770 DEG C；
3）Homogenization：Ingot casting is carried out to 450 DEG C of insulation 12h Homogenization Treatments in Muffle furnace；
4）Thermal deformation：Hot rolling is carried out to ingot casting using milling train, rolling temperature is 420 DEG C, strain rate 1s-1, deflection 80%；
5）Solid solution：Solution treatment is carried out to sample in Muffle furnace, solid solution system is 420 DEG C of insulation 1.5h, and heating 30min is extremely
460 DEG C, it is incubated 1h；
6）Timeliness：Carried out in aging furnace, timeliness is heat-treated using three-step aging, one-level timeliness uses 100 DEG C, be incubated 16h, two
Level timeliness uses 170 DEG C, is incubated 1h, and three-step aging uses 120 DEG C, is incubated 24h.
Embodiment 5
In the embodiment of the present invention, a kind of novel aluminum alloy for being used to make automobile bushing, by below according to the original of mass percent
Material composition：Zn8.8%, Mg1.9%, Cu1.8%, Zr0.12%, Fe0.25%, Si0.23%, Er0.04%, surplus are Al.
During preparation, comprise the following steps：
1）Dispensing：Carried out according to the novel aluminum alloy raw material composition for being used to make automobile bushing and its mass percent proportioning
Dispensing；
2）Founding：Raw material is put into melting in intermediate frequency furnace, temperature control refines 2h, tapping casting ingot at 770 DEG C；
3）Homogenization：Ingot casting is carried out to 450 DEG C of insulation 12h Homogenization Treatments in Muffle furnace；
4）Thermal deformation：Hot rolling is carried out to ingot casting using milling train, rolling temperature is 420 DEG C, strain rate 1s-1, deflection 80%；
5）Solid solution：Solution treatment is carried out to sample in Muffle furnace, solid solution system is 420 DEG C of insulation 1.5h, and heating 30min is extremely
460 DEG C, it is incubated 1h；
6）Timeliness：Carried out in aging furnace, timeliness is heat-treated using three-step aging, one-level timeliness uses 120 DEG C, be incubated 24h, two
Level timeliness uses 220 DEG C, is incubated 3h, and three-step aging uses 120 DEG C, is incubated 24h.
Corresponding test block is made in alloy bushing material made from embodiment 1 ~ 5, is tested according to national standard, its is main
Performance is as shown in table 1.
Data understand that the corresponding aluminium alloy combination property of embodiment 3 is the most excellent in table.
In addition, carrying out load durable test, wherein axial load 9000N, frequency 1Hz to the alloy bushing of embodiment 1 ~ 5
Cycle-index 300000 times, does not find to damage.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit is required rather than described above is limited, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of novel aluminum alloy for being used to make automobile bushing, it is characterised in that by below according to the raw material of mass percent
Composition：Zn8.2 ~ 9.5%, Mg1.4 ~ 2.8%, Cu1.1 ~ 2.7%, Zr0.08 ~ 0.17%, Fe0.11 ~ 0.54%, Si0.10 ~ 0.37%,
Er0.02 ~ 0.08%, surplus is Al.
2. the novel aluminum alloy according to claim 1 for being used to make automobile bushing, it is characterised in that by below according to matter
Measure the raw material composition of percentage：Zn8.5 ~ 9.1%, Mg1.7 ~ 2.5%, Cu1.6 ~ 2.2%, Zr0.11 ~ 0.15%, Fe0.16 ~
0.38%, Si0.18 ~ 0.26%, Er0.03 ~ 0.06%, surplus are Al.
3. the novel aluminum alloy according to claim 1 for being used to make automobile bushing, it is characterised in that by below according to matter
Measure the raw material composition of percentage：Zn8.8%, Mg1.9%, Cu1.8%, Zr0.12%, Fe0.25%, Si0.23%, Er0.04%, surplus
For Al.
4. a kind of being used for as described in claim 1-3 is any makes the novel aluminum alloy preparation method of automobile bushing, its feature
It is, comprises the following steps：
1）Dispensing：Carried out according to the novel aluminum alloy raw material composition for being used to make automobile bushing and its mass percent proportioning
Dispensing；
2）Founding：Raw material is put into melting in intermediate frequency furnace, temperature control refines 2h, tapping casting ingot at 770 DEG C；
3）Homogenization：Ingot casting is carried out to 450 DEG C of insulation 12h Homogenization Treatments in Muffle furnace；
4）Thermal deformation：Hot rolling is carried out to ingot casting using milling train, rolling temperature is 420 DEG C, strain rate 1s-1, deflection 80%；
5）Solid solution：Solution treatment is carried out to sample in Muffle furnace, solid solution system is 420 DEG C of insulation 1.5h, and heating 30min is extremely
460 DEG C, it is incubated 1h；
6）Timeliness：Carried out in aging furnace, timeliness is heat-treated using three-step aging, one-level timeliness uses 100 ~ 120 DEG C, insulation 16
~ 24h, secondary time effect uses 170 ~ 220 DEG C, is incubated 1 ~ 3h, and three-step aging uses 120 DEG C, is incubated 24h.
5. the novel aluminum alloy preparation method according to claim 4 for being used to make automobile bushing, it is characterised in that step
5）In, cooled after solution treatment using oil quenching.
6. the novel aluminum alloy preparation method according to claim 4 for being used to make automobile bushing, it is characterised in that step
6）In, Ageing Treatment is carried out in aging furnace, timeliness is heat-treated using three-step aging, and one-level timeliness uses 120 DEG C, is incubated 18h,
Secondary time effect uses 180 DEG C, is incubated 1h, and three-step aging uses 120 DEG C, is incubated 24h.
7. the novel aluminum alloy preparation method according to claim 4 for being used to make automobile bushing, it is characterised in that step
6）In, the heating rate of one-level aging temp to secondary time effect temperature is 5 DEG C/s, secondary time effect temperature to three-step aging temperature
Rate of temperature fall is 5 DEG C/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710223247.3A CN106995895A (en) | 2017-04-07 | 2017-04-07 | It is a kind of to be used to make novel aluminum alloy of automobile bushing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710223247.3A CN106995895A (en) | 2017-04-07 | 2017-04-07 | It is a kind of to be used to make novel aluminum alloy of automobile bushing and preparation method thereof |
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| CN106995895A true CN106995895A (en) | 2017-08-01 |
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| CN201710223247.3A Pending CN106995895A (en) | 2017-04-07 | 2017-04-07 | It is a kind of to be used to make novel aluminum alloy of automobile bushing and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022272301A1 (en) * | 2021-06-25 | 2022-12-29 | Tenneco Inc. | Bearing formed of an aluminum alloy material and method of manufacturing |
| CN116516223A (en) * | 2023-04-03 | 2023-08-01 | 北京工业大学 | Erbium-containing high-zinc Al-Zn-Cu-Si-Er-Zr alloy and preparation method thereof |
-
2017
- 2017-04-07 CN CN201710223247.3A patent/CN106995895A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022272301A1 (en) * | 2021-06-25 | 2022-12-29 | Tenneco Inc. | Bearing formed of an aluminum alloy material and method of manufacturing |
| CN116516223A (en) * | 2023-04-03 | 2023-08-01 | 北京工业大学 | Erbium-containing high-zinc Al-Zn-Cu-Si-Er-Zr alloy and preparation method thereof |
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