CN107090568A - A kind of heat treatment method of Al Zn Mg Cu aluminium alloys - Google Patents
A kind of heat treatment method of Al Zn Mg Cu aluminium alloys Download PDFInfo
- Publication number
- CN107090568A CN107090568A CN201710434767.9A CN201710434767A CN107090568A CN 107090568 A CN107090568 A CN 107090568A CN 201710434767 A CN201710434767 A CN 201710434767A CN 107090568 A CN107090568 A CN 107090568A
- Authority
- CN
- China
- Prior art keywords
- aluminium alloys
- heat treatment
- solution
- treatment method
- stage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C22F1/043—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 silicon as the next major constituent
-
- 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
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)
- Coating With Molten Metal (AREA)
Abstract
The present invention relates to a kind of heat treatment method of Al Zn Mg Cu aluminium alloys, including grade and stage processing, in the grade and stage processing procedure, including at least three-stage solution processing procedure, and carry out solution treatment by the way of heating step by step and step by step reduction soaking time.The heat treatment method for the Al Zn Mg Cu aluminium alloys that the present invention is provided, it can cause aluminium alloy that there is the comprehensive mechanical properties such as higher intensity and hardness, the corrosion resistance of material can be effectively improved simultaneously, its Technology for Heating Processing is simple, operation is easily realized, treatment temperature is substantially reduced, is a kind of low energy consumption Technology for Heating Processing.
Description
Technical field
The present invention relates to technical field of metal heat treatment, more particularly to a kind of heat treatment side of Al-Zn-Mg-Cu aluminium alloys
Method.
Background technology
Al-Zn-Mg-Cu aluminium alloys have smaller, the easily processed into type and good thing of very high intensity, density
The characteristics such as reason, chemical property.Therefore it is widely used in the fields such as Aero-Space, communications and transportation, military project, building.Al-Zn-Mg-
The mechanical performance of Cu aluminium alloys is mainly determined by its matrix and second phase particles proportion, form and distribution
's.Wherein the second phase proportion and fractions distribution are mainly what is determined by Technology for Heating Processing.Pass through solid solution treatment method
Change pattern and the distribution of the hardening constituent of the aluminium alloy, the combination property of aluminium alloy can be lifted.
In single-stage solid solution craft, because solid solubility temperature will be under the eutectic melting point of alloy, the impurities phase of higher melt
It is unable to solid solution completely, easily remains the presence of the second larger phase, the intensity of alloy being caused relatively low and anticorrosive etc., performance is present
Many deficiencies, the increasing researcher of recent decades gets down to improve aluminium alloy by using new Technology for Heating Processing
Performance.Wherein Intensive intervention turns into a kind of newest hot handling process, is included in insulation under relatively low solid solubility temperature and dispels for a period of time
Except the stress and deformation energy that are remained in material in process, then pass through hypereutectic fusing point solid solubility temperature insulation a period of time
So that the abundant solid solution of second phase particles, and obtain preferable saturated solid solution.But the aluminium alloy obtained by this method is strong
Degree and corrosion resistance still have much room for improvement.
The content of the invention
It is an object of the invention to provide a kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys.
In order to realize foregoing invention purpose, the embodiments of the invention provide following technical scheme：
A kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys, including grade and stage processing, in grade and stage processing
During, including at least three-stage solution processing procedure, and consolidated by the way of heating up and gradually reducing soaking time step by step
Molten processing.
According to embodiments of the present invention, the grade and stage processing includes：At the one-level solid solution of 440 DEG C -470 DEG C progress
Reason, two grades of solution treatment and the three-stage solution processing in 480 DEG C -500 DEG C progress in 470 DEG C -480 DEG C progress.
Further, according to embodiments of the present invention, the one-level solution treatment includes：By Al-Zn-Mg-Cu aluminium alloys from
Room temperature is heated to after 44 DEG C -470 DEG C, is incubated 1h -3h.
Further, according to embodiments of the present invention, two grades of solution treatment include：By after one-level solution treatment
Al-Zn-Mg-Cu aluminium alloys are heated to 470 DEG C -480 DEG C, are incubated 0.5h -1h.
Further, according to embodiments of the present invention, the three-stage solution processing includes：By after two grades of solution treatment
Al-Zn-Mg-Cu aluminium alloys are heated to 480 DEG C -500 DEG C, are incubated 0.5h -1h.
According to embodiments of the present invention, methods described also includes peak value Ageing Treatment：Al-Zn- after grade and stage is handled
Mg-Cu aluminium alloys are heated to 115 DEG C -125 DEG C, isothermal holding 22h -24h in drying box.
Compared with prior art, beneficial effects of the present invention：The heat treatment for the Al-Zn-Mg-Cu aluminium alloys that the present invention is provided
Method so that low-melting impurities are preferentially dissolved in matrix when low-temperature zone is incubated in aluminum alloy organization, improves remaining alloy
The burnt temperature of impurities phase, it is ensured that alloy is organized to improve aluminium base while occurring without burn-off phenomenon in high temperature section insulating process
The saturation degree of body；And the heat treatment method can be efficiently controlled by the way of heating step by step and soaking time are successively decreased step by step
Recrystallization fraction and crystallite dimension in alloy, can cause the aluminium alloy after processing to have the resultant forces such as high intensity and toughness
Performance is learned, while the corrosion resistance of material can be effectively improved.Its Technology for Heating Processing is simple, operation is easily realized, drops significantly
Reduction process temperature, is a kind of low energy consumption Technology for Heating Processing.
Embodiment
In Al-Zn-Mg-Cu aluminium alloys described in various embodiments of the present invention, the weight percent content of each group metamember
For Zn 5.5~6.8%, Mg 2.0~3.0%, Cu 1.5~2.0%, Mn 0.4~0.45%, Fe 0.2~0.25%, Cr
0.18~0.2%, Si 0.062%, Ti 0.041%, Ni 0.005%, V 0.009%, surplus is Al.With Mg, Zn and Cu
The increase of content, the primary solid solubility temperature of heat treatment is slightly improved and holding time, and high-melting-point Fe constituent content increases can
It is corresponding to improve two grades or three-stage solution temperature.
Embodiment 1
A kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys, step is as follows：(1), by Al-Zn-Mg-Cu aluminium alloys by
Room temperature is heated to 470 DEG C, and isothermal holding 2h completes one-level solution treatment；(2) then will complete one-level solution treatment after Al-
Zn-Mg-Cu aluminium alloys carry out peak value Ageing Treatment 24h at 120 DEG C -125 DEG C；(3), by the alloy after peak value Ageing Treatment
It is immersed in Peeling Corrosion EXCO solution (NaCl, KNO3And HNO3Concentration be respectively 4.0mol/L, 0.5mol/L and 0.1mol/
L, solvent is distilled water) in 48h.
Embodiment 2
A kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys, step is as follows：(1), Al-Zn-Mg-Cu aluminium alloys are added
Heat is to 450 DEG C, and isothermal holding 1h completes one-level solution treatment；(2) the aluminium alloy temperature slow heating after step (1) will, be completed
To 470 DEG C, 40min is incubated, two grades of solution treatment are completed；(3) the Al-Zn-Mg-Cu aluminium alloys after two grades of solution treatment will be completed
Peak value Ageing Treatment 24h is carried out at 120 DEG C -125 DEG C.
Embodiment 3
A kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys, step is as follows：(1), Al-Zn-Mg-Cu aluminium alloys are added
Heat is to 460 DEG C, and isothermal holding 1h completes one-level solution treatment；(2), the aluminium alloy temperature for completing step (1) is heated slowly to
490 DEG C, 40min is incubated, two grades of solution treatment are completed；(3) aluminium alloy of two grades of solution treatment will be completed at 120 DEG C -125 DEG C
Lower progress peak value Ageing Treatment 24h.
Embodiment 4
A kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys, step is as follows：(1), Al-Zn-Mg-Cu aluminium alloys are added
Heat is to 470 DEG C, and isothermal holding 2h completes one-level solution treatment；(2), the aluminium alloy temperature for completing step (1) is heated slowly to
480 DEG C, 1h is incubated, two grades of solution treatment are completed；(3) when will complete the aluminium alloy of two grades of solution treatment at 120 DEG C -125 DEG C
Effect processing 24h.(4) alloy completed after step (3), is immersed in 48h in EXCO solution.
Embodiment 5
A kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys, step is as follows：(1), Al-Zn-Mg-Cu aluminium alloys are added
Heat is to 450 DEG C, and isothermal holding 2h completes one-level solution treatment；(2), the aluminium alloy temperature for completing step (1) is heated slowly to
480 DEG C, 1h is incubated, two grades of solution treatment are completed；(3) the aluminium alloy temperature for completing step (2), is heated slowly to 490 DEG C, guarantor
Warm 0.5h, completes three-stage solution processing；(4) the Al-Zn-Mg-Cu aluminium alloys of three-stage solution processing will be completed 120 DEG C -125
Ageing Treatment 24h at DEG C.(5) alloy after peak value Ageing Treatment, is immersed in 48h in EXCO solution.
Embodiment 6
A kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys, step is as follows：(1), Al-Zn-Mg-Cu aluminium alloys are added
Heat is to 470 DEG C, and isothermal holding 2h completes one-level solution treatment；(2), the aluminium alloy temperature for completing step (1) is heated slowly to
480 DEG C, 1h is incubated, two grades of solution treatment are completed；(3) the aluminium alloy temperature for completing step (2), is heated slowly to 490 DEG C, guarantor
Warm 0.5h, completes three-stage solution processing；(4) aluminium alloy of three-stage solution processing will, be completed at 120 DEG C -125 DEG C at timeliness
Manage 24h；(5) alloy after peak value Ageing Treatment, is immersed in 48h in EXCO solution.
Performance to the aluminium alloy after the various embodiments described above are heat-treated and evaluation is degraded as shown in table 1, table 2.
Table 1：The performance parameter table of Al-Zn-Mg-Cu aluminium alloys in each embodiment
Table 2：Al-Zn-Mg-Cu aluminium alloys degrades 48h gradings in embodiment
In table 2, N represents do not occur corrosion characteristics；P represents spot corrosion occur；EA-EB represents that denudation degree is deepened.
Three-stage solution significantly improves Al-Zn-Mg-Cu intensity of aluminum alloy, hardness and ballistic work as seen from Table 1 and Table 2, simultaneously
It can be improved using the abrasion resistance of the handling process aluminium alloy.
It is above-mentioned only to list section Example, the part value of some parameters in processing procedure is only embodied, for example,
In one-level solutionizing step, one-level solution treatment can be carried out between 440 DEG C -470 DEG C, especially with 450 DEG C -470 DEG C
It is advisable.In another example three-stage solution processing can be carried out between 480 DEG C -500 DEG C, especially it is advisable with 490 DEG C.Again for example can be with
Peak value Ageing Treatment 24h is carried out at 115 DEG C -125 DEG C, is especially advisable with 120 DEG C -125 DEG C.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.
Claims (5)
1. a kind of heat treatment method of Al-Zn-Mg-Cu aluminium alloys, it is characterised in that including grade and stage process step, in institute
State in grade and stage processing procedure, including at least three-stage solution processing procedure, and during using heating step by step with reduction insulation step by step
Between mode carry out solution treatment.
2. the heat treatment method of Al-Zn-Mg-Cu aluminium alloys according to claim 1, it is characterised in that the classification is consolidated
Molten processing includes：One-level solution treatment in 440 DEG C -470 DEG C progress, two grades of solution treatment in 470 DEG C -480 DEG C progress
And in the three-stage solution processing of 480 DEG C -500 DEG C progress.
3. the heat treatment method of Al-Zn-Mg-Cu aluminium alloys according to claim 2, it is characterised in that the one-level is consolidated
Molten processing includes：Al-Zn-Mg-Cu aluminium alloys are heated to after 440 DEG C -470 DEG C from room temperature, 1h -3h is incubated.
4. the heat treatment method of Al-Zn-Mg-Cu aluminium alloys according to claim 3, it is characterised in that described two grades are solid
Molten processing includes：Al-Zn-Mg-Cu aluminium alloys after one-level solution treatment are heated to 470 DEG C -480 DEG C, insulation 0.5h -
1h。
5. the heat treatment method of Al-Zn-Mg-Cu aluminium alloys according to claim 4, it is characterised in that the three-level is consolidated
Molten processing includes：Al-Zn-Mg-Cu aluminium alloys after two grades of solution treatment are heated to 480 DEG C -500 DEG C, insulation 0.5h -
1h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710434767.9A CN107090568A (en) | 2017-06-10 | 2017-06-10 | A kind of heat treatment method of Al Zn Mg Cu aluminium alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710434767.9A CN107090568A (en) | 2017-06-10 | 2017-06-10 | A kind of heat treatment method of Al Zn Mg Cu aluminium alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107090568A true CN107090568A (en) | 2017-08-25 |
Family
ID=59640138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710434767.9A Pending CN107090568A (en) | 2017-06-10 | 2017-06-10 | A kind of heat treatment method of Al Zn Mg Cu aluminium alloys |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107090568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055875A (en) * | 2018-10-27 | 2018-12-21 | 安徽创弘精密机械有限公司 | A kind of heat treatment process improving aluminium alloy extrusions intensity |
| CN112981196A (en) * | 2021-02-10 | 2021-06-18 | 北京科技大学 | Ultrahigh-strength and high-toughness Al-Zn-Mg-Cu aluminum alloy and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796976A (en) * | 2012-08-22 | 2012-11-28 | 北京有色金属研究总院 | Staged homogenization heat treatment method for improving microstructure and performances of Zr-containing 7xxx aluminum alloy |
| CN104962847A (en) * | 2015-07-16 | 2015-10-07 | 中南大学 | Heat treatment technique for enhancing uniformity and corrosion resistance of 7-series alloy thick plate |
| CN105331859A (en) * | 2015-10-29 | 2016-02-17 | 中国航空工业集团公司北京航空材料研究院 | Preparing method for 700-MPa-level aluminum alloy extruded section |
| CN105734466A (en) * | 2014-12-09 | 2016-07-06 | 北京有色金属研究总院 | Solid solution heat treatment method for improving structure and performance of 7xxx wrought aluminum alloy |
| CN106167884A (en) * | 2016-04-22 | 2016-11-30 | 昆山捷安特轻合金科技有限公司 | A kind of multistage Technology for Heating Processing of Al Mg Si Cu Zr Sc aluminium alloy |
-
2017
- 2017-06-10 CN CN201710434767.9A patent/CN107090568A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102796976A (en) * | 2012-08-22 | 2012-11-28 | 北京有色金属研究总院 | Staged homogenization heat treatment method for improving microstructure and performances of Zr-containing 7xxx aluminum alloy |
| CN105734466A (en) * | 2014-12-09 | 2016-07-06 | 北京有色金属研究总院 | Solid solution heat treatment method for improving structure and performance of 7xxx wrought aluminum alloy |
| CN104962847A (en) * | 2015-07-16 | 2015-10-07 | 中南大学 | Heat treatment technique for enhancing uniformity and corrosion resistance of 7-series alloy thick plate |
| CN105331859A (en) * | 2015-10-29 | 2016-02-17 | 中国航空工业集团公司北京航空材料研究院 | Preparing method for 700-MPa-level aluminum alloy extruded section |
| CN106167884A (en) * | 2016-04-22 | 2016-11-30 | 昆山捷安特轻合金科技有限公司 | A kind of multistage Technology for Heating Processing of Al Mg Si Cu Zr Sc aluminium alloy |
Non-Patent Citations (1)
| Title |
|---|
| 李念奎等编著: "《铝合金材料及其热处理技术》", 30 April 2012, 北京：冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055875A (en) * | 2018-10-27 | 2018-12-21 | 安徽创弘精密机械有限公司 | A kind of heat treatment process improving aluminium alloy extrusions intensity |
| CN112981196A (en) * | 2021-02-10 | 2021-06-18 | 北京科技大学 | Ultrahigh-strength and high-toughness Al-Zn-Mg-Cu aluminum alloy and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104694860B (en) | A kind of low-purity Al-Zn-Mg-Cu alloy ageing hot processing method | |
| CN101956151A (en) | Heat treatment technology of high strength aluminium alloy | |
| CN104178673B (en) | A kind of magnesium alloy and preparation method thereof | |
| CN108570633A (en) | Improve the preparation method of 6xxx line aluminium alloy friction and wear behaviors | |
| CN103255324A (en) | Aluminum alloy material suitable for manufacturing car body panel and preparation method | |
| CN102242325A (en) | Heat treatment technology for markedly raising comprehensive performance of aluminium alloy | |
| CN104032196B (en) | high-strength magnesium alloy material and preparation method thereof | |
| CN108796313B (en) | Al-Mg-Si series wrought aluminum alloy and strengthening and toughening treatment method thereof | |
| CN105951009B (en) | A kind of Technology for Heating Processing of aluminium alloy | |
| CN109735691A (en) | 1000MPa high-carbon high-manganese low-density steel and preparation method thereof | |
| CN105821264A (en) | High-ductility aluminum alloy material | |
| CN107090568A (en) | A kind of heat treatment method of Al Zn Mg Cu aluminium alloys | |
| CN104789849A (en) | Material for magnesium alloy doors and windows and production method of material | |
| CN103834885A (en) | Thermal treatment method for improving plasticity of aluminum alloy plate material | |
| CN103510029A (en) | Solution heat treatment method suitable for 6000 series aluminum alloy automobile body plate | |
| CN109457158A (en) | A kind of corrosion-proof rare earth magnesium alloy and preparation method thereof | |
| CN107177764A (en) | A kind of high strength and low cost cast magnesium alloy and preparation method thereof | |
| CN104928547A (en) | High-strength and high-temperature-resistant magnesium alloy | |
| CN102304687A (en) | Aluminum bronze heat treatment process | |
| CN104862605B (en) | A kind of low yield ratio weathering resistant wind-power tower steel and production method | |
| CN108866463A (en) | A kind of heat treatment process of low alloying Al-Mg-Si alloy | |
| CN103706964A (en) | Gas shielded welding solid wire for 500MPa constructional steel and manufacturing method of gas shielded welding solid wire | |
| CN105734466A (en) | Solid solution heat treatment method for improving structure and performance of 7xxx wrought aluminum alloy | |
| CN109280831A (en) | A kind of fire-retardant Tough magnesium alloy and preparation method thereof | |
| CN105296799A (en) | TC11 titanium alloy and technique for optimizing performance of TC11 titanium alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170825 |
|
| RJ01 | Rejection of invention patent application after publication |