CN104357777A - Processing method of 2A01 aluminum alloy plate - Google Patents
Processing method of 2A01 aluminum alloy plate Download PDFInfo
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- CN104357777A CN104357777A CN201410579513.2A CN201410579513A CN104357777A CN 104357777 A CN104357777 A CN 104357777A CN 201410579513 A CN201410579513 A CN 201410579513A CN 104357777 A CN104357777 A CN 104357777A
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- aluminum alloy
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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
- C22F1/057—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 copper 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
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
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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
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
Abstract
The invention provides a processing method of a 2A01 aluminum alloy plate. The processing method comprises the following steps: quenching the 2A01 aluminum alloy plate at the temperature of 490-510 DEG C, and keeping the temperature for 5-30 hours; applying 4%-6% compression deformation to the 2A01 aluminum alloy plate in the thickness direction; performing primary ageing treatment on the 2A01 aluminum alloy plate subjected to compression deformation in various external electrical and temperature fields under the electrical field intensity of 10-20 kv/cm at the temperature of 360-380 DEG C, and keeping the temperature for 2-20 hours. Compared with the prior art, the aluminum alloy plate is quenched and firstly subjected to compression deformation, so that the mechanical property of the aluminum alloy plate is improved; then, the aluminum alloy plate is subjected to ageing treatment in various external electrical and temperature fields, so that the intercrystalline and stress corrosion of 2A01 aluminum alloy is reduced and good corrosion resistance of the 2A01 aluminum alloy plate is guaranteed under the action of compression deformation, electrical field and temperature.
Description
Technical field
The present invention relates to technical field of aluminum alloy technology, particularly relate to a kind of working method of 2A01 aluminum alloy plate materials.
Background technology
Aluminium alloy take aluminium as the alloy general name of base, and main alloy element has copper, silicon, magnesium, zinc, manganese, and secondary alloying element has nickel, iron, titanium, chromium, lithium etc.Aluminium alloy density is low, but strength ratio is higher, close to or exceed high-quality steel, plasticity is good, can be processed into various section bar, has excellent electroconductibility, thermal conductivity and corrosion stability, industrially widely uses.
Aluminium alloy can be divided into Behaviors of Deformed Aluminum Alloys and the large class of cast aluminium alloy two by working method: cast aluminium alloy according to chemical composition can be divided into aluminum silicon alloy, aluminum-copper alloy, aluminum magnesium alloy, aluminium-zinc alloy and Al rare earth alloy, and cast aluminium alloy uses under as cast condition.Wrought aluminium alloy can bear press working, can be processed into the aluminium alloy material of various form, specification, mainly for the manufacture of air material, door and window for building etc.Behaviors of Deformed Aluminum Alloys is divided into again not heat-treatable strengthened type aluminium alloy and heat-treatable strengthened type aluminium alloy.Not heat-treatable strengthened type does not improve mechanical property by thermal treatment, and can only realize strengthening by cold deformation, it mainly comprises rafifinal, industrial rafifinal, commercial-purity aluminium and corrosion-resisting aluminium etc.Heat-treatable strengthened type aluminium alloy can improve mechanical property by heat treatment such as quenching and timeliness, and it can be divided into duralumin, wrought aluminium, ultralumin and particular aluminum alloy etc.
2A01 aluminium alloy is low strength duralumin, is riveted joint aluminium alloy structure primary rivet material, and its intensity after quenching and natural aging is lower, but has very high plasticity and good processing performance, machinability well, but solidity to corrosion is not high.
Application number be 200710072139.7 Chinese patent literature disclose a kind of aviation aluminum alloy pre-stretching plate and production method thereof, comprise step: quenched under the condition of 468 DEG C ~ 472 DEG C by aluminium alloy woollen, with drawing machine, according to the parameter that amount of tension is 1.5 ~ 3.0%, preliminary draft is carried out to woollen in after quenching 4 ~ 6 hours, and be 115 DEG C ~ 125 DEG C in temperature, soaking time is carry out ageing treatment for the woollen after stretching under the condition of 14 ~ 18 hours.The problem that this patent solves is sheet material in the process of cooling rapidly of quenching, and the speed of cooling of the upper layer of sheet material and the central core of sheet material is inconsistent, and makes plate surface and center produce unrelieved stress, thus the problem of generation machining deformation.But method can not improve the erosion resistance of 2A01 aluminium alloy disclosed in this patent.
Summary of the invention
The technical problem that the present invention solves is the working method providing a kind of 2A01 aluminum alloy plate materials, the method increases the erosion resistance of 2A01 aluminum alloy plate materials.
In view of this, the invention provides a kind of working method of 2A01 aluminum alloy plate materials, comprise the following steps:
Step a) by 2A01 aluminum alloy plate materials 490 ~ 510 DEG C of quenchings, be incubated 5 ~ 30 hours;
Step b) 2A01 aluminum alloy plate materials applied in a thickness direction 4% ~ 6% compression set;
Step c) the 2A01 aluminum alloy plate materials after compression set is carried out one-level ageing treatment after the match outside electric field-temperature is many, strength of electric field is 10 ~ 20kv/cm, and temperature is 360 ~ 380 DEG C, and soaking time is 2 ~ 20 hours.
Preferably, the temperature of described quenching is 495 DEG C ~ 510 DEG C.
Preferably, described step soaking time a) is 10 ~ 20 hours.
Preferably, 2A01 aluminum alloy plate materials is applied in a thickness direction to the compression set of 4% ~ 5%.
Preferably, apply compression set to described 2A01 aluminum alloy plate materials to carry out at ambient temperature.
Preferably, the strength of electric field of described one-level ageing treatment is 12 ~ 16kv/cm.
Preferably, the temperature of described one-level ageing treatment is 360 ~ 370 DEG C.
Preferably, the soaking time of described one-level ageing treatment is 5 ~ 10 hours.
Preferably, also comprise:
2A01 aluminum alloy plate materials after one-level ageing treatment is carried out secondary time effect process after the match outside electric field-temperature is many, and strength of electric field is 2 ~ 8kv/cm, and temperature is 350 ~ 370 DEG C, and soaking time is 5 ~ 20 hours.
Preferably, the strength of electric field of described secondary time effect process is 5 ~ 8kv/cm.
The invention provides a kind of working method of 2A01 aluminum alloy plate materials, comprising: by 2A01 aluminum alloy plate materials 490 ~ 510 DEG C of quenchings, be incubated 5 ~ 30 hours; 2A01 aluminum alloy plate materials is applied in a thickness direction to the compression set of 4% ~ 6%; 2A01 aluminum alloy plate materials after compression set is carried out one-level ageing treatment after the match outside electric field-temperature is many, and strength of electric field is 10 ~ 20kv/cm, and temperature is 360 ~ 380 DEG C, and soaking time is 2 ~ 20 hours.Compared with prior art, the present invention is after aluminum alloy plate materials quenching, first compression set is applied to it, improve its mechanical property, then outside electric field-temperature is many, ageing treatment is carried out after the match, thus under the multiple action of compression set, electric field and temperature, decrease intergranular corrosion and the stress corrosion of 2A01 aluminium alloy, ensure that 2A01 aluminum alloy plate materials has good corrosion resistance nature.
Embodiment
In order to understand the present invention further, below in conjunction with embodiment, the preferred embodiment of the invention is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
The embodiment of the invention discloses a kind of working method of 2A01 aluminum alloy plate materials, comprise the following steps:
Step a) by 2A01 aluminum alloy plate materials 490 ~ 510 DEG C of quenchings, be incubated 5 ~ 30 hours;
Step b) 2A01 aluminum alloy plate materials applied in a thickness direction 4% ~ 6% compression set;
Step c) the 2A01 aluminum alloy plate materials after compression set is carried out one-level ageing treatment after the match outside electric field-temperature is many, strength of electric field is 10 ~ 20kv/cm, and temperature is 360 ~ 380 DEG C, and soaking time is 2 ~ 20 hours.
The present invention is after aluminum alloy plate materials quenching, first compression set is applied to it, improve its mechanical property, then outside electric field-temperature is many, ageing treatment is carried out after the match, thus under the multiple action of compression set, electric field and temperature, decrease intergranular corrosion and the stress corrosion of 2A01 aluminium alloy, ensure that 2A01 aluminum alloy plate materials has good corrosion resistance nature.
According to the present invention, the composition of described 2A01 aluminum alloy plate materials comprises: the Cu of the Si of≤0.5wt% (weight percent), Fe, 2.2wt% of≤0.5wt% ~ 3wt% ,≤0.2wt% Mn, 0.2wt% ~ Mg of 0.5wt%, the Zn of≤0.1wt%, the Ti of≤0.15wt%, the Al of surplus.
According to the present invention, after 2A01 aluminium alloy is cast aluminium alloy cast ingot, aluminium alloy cast ingot described in rolling forms aluminum alloy plate materials, and described rolling comprises one or many hot rolling, and cold rolling after single hot-roll or in cold rolling repeatedly between hot rolling or cold rolling repeatedly after hot rolling.For hot-rolled temperature, be preferably 450 DEG C ~ 500 DEG C, be preferably 460 ~ 480 DEG C.According to the present invention, the thickness of described 2A01 aluminum alloy plate materials is preferably 10mm ~ 25mm, is more preferably 15mm ~ 23mm, most preferably is 20mm.
After rolling 2A01 aluminium alloy obtains aluminum alloy plate materials, quench treatment is carried out to aluminum alloy plate materials.For quenching temperature, be preferably 495 DEG C ~ 505 DEG C, be more preferably 500 DEG C.The soaking time of described quenching is preferably 5 ~ 20 hours, is more preferably 5 ~ 10 hours.After insulation, for the method for cooling of quenching, the present invention is not particularly limited, and can adopt method well known to those skilled in the art, such as oil cooling or water-cooled.
After quenching, in order to improve the final intensity of 2A01 aluminum alloy plate materials further and improve the corrosion resistance nature of aluminium alloy, aluminum alloy plate materials after quenching is applied in a thickness direction to the compression set of 4% ~ 6%, preferred, aluminium alloy after quenching is applied in a thickness direction to the compression set of 4% ~ 5%, most preferred, the aluminium alloy after quenching is applied in a thickness direction to the compression set of 5%.
For the temperature applying compression set, preferably at room temperature carry out.Namely keep the temperature of aluminium alloy plate in room temperature, then in a thickness direction compression set is applied to it.For the method and apparatus applying compression set, the present invention is without particular limitation, preferably carries out on milling train.
Then, further ageing treatment is carried out to the 2A01 aluminum alloy plate materials after compression set.The strength of electric field of described one-level ageing treatment is preferably 12 ~ 16kv/cm, is more preferably 13 ~ 15kv/cm; The temperature of described one-level ageing treatment is preferably 360 ~ 370 DEG C, is more preferably 360; The soaking time of described one-level ageing treatment is preferably 5 ~ 10 hours, is more preferably 5 ~ 8 hours.
2A01 aluminum alloy plate materials is carried out ageing treatment after the match by the present invention outside electric field-temperature is many, and be combined with compression set, the temperature, time, strength of electric field etc. of ageing treatment, ensure that 2A01 aluminum alloy plate materials is while having excellent mechanical performances, improve 2A01 aluminum alloy plate materials corrosion resistance nature.
Preferably, the present invention also comprises:
2A01 aluminum alloy plate materials after one-level ageing treatment is carried out secondary time effect process after the match outside electric field-temperature is many, and strength of electric field is 2 ~ 8kv/cm, and temperature is 350 ~ 370 DEG C, and soaking time is 5 ~ 20 hours.The strength of electric field of described secondary time effect process is preferably 5 ~ 8kv/cm, is more preferably 6 ~ 7kv/cm, most preferably is 6kv/cm; The temperature of described secondary time effect process is preferably 360 ~ 370 DEG C, is more preferably 370 DEG C; Soaking time is preferably 10 ~ 20 hours, is more preferably 15 hours.
Ageing treatment of the present invention refers to the operation aluminium alloy after cold deformation being heated or is cooled to certain temperature and carry out being incubated well known to those skilled in the art.
In order to understand the present invention further, be described in detail to technical scheme provided by the invention below in conjunction with embodiment, protection scope of the present invention is not limited by the following examples.
Embodiment 1
A) get the 2A01 aluminum alloy plate materials that thickness is 20mm, quenched by described aluminum alloy plate materials, temperature during quenching is 500 DEG C, and soaking time is 10 hours, and the type of cooling is water-cooled;
B) 2A01 aluminum alloy plate materials is applied in a thickness direction to the compression set of 4%;
C) the 2A01 aluminum alloy plate materials after compression set is carried out one-level ageing treatment after the match outside electric field-temperature is many, strength of electric field is 10kv/cm, and temperature is 370 DEG C, and soaking time is 2 hours.
Embodiment 2
A) get the 2A01 aluminum alloy plate materials that thickness is 20mm, quenched by described aluminum alloy plate materials, temperature during quenching is 500 DEG C, and soaking time is 10 hours, and the type of cooling is water-cooled;
B) 2A01 aluminum alloy plate materials is applied in a thickness direction to the compression set of 5%;
C) the 2A01 aluminum alloy plate materials after compression set is carried out one-level ageing treatment after the match outside electric field-temperature is many, strength of electric field is 12kv/cm, and temperature is 370 DEG C, and soaking time is 2 hours.
Embodiment 3
A) get the 2A01 aluminum alloy plate materials that thickness is 20mm, quenched by described aluminum alloy plate materials, temperature during quenching is 500 DEG C, and soaking time is 10 hours, and the type of cooling is water-cooled;
B) 2A01 aluminum alloy plate materials is applied in a thickness direction to the compression set of 6%;
C) the 2A01 aluminum alloy plate materials after compression set is carried out one-level ageing treatment after the match outside electric field-temperature is many, strength of electric field is 18kv/cm, and temperature is 370 DEG C, and soaking time is 2 hours.
Embodiment 4
A) get the 2A01 aluminum alloy plate materials that thickness is 20mm, quenched by described aluminum alloy plate materials, temperature during quenching is 510 DEG C, and soaking time is 20 hours, and the type of cooling is water-cooled;
B) 2A01 aluminum alloy plate materials is applied in a thickness direction to the compression set of 6%;
C) the 2A01 aluminum alloy plate materials after compression set is carried out one-level ageing treatment after the match outside electric field-temperature is many, strength of electric field is 19kv/cm, and temperature is 380 DEG C, and soaking time is 20 hours;
D) 2A01 aluminum alloy plate materials is carried out secondary time effect process after the match outside electric field-temperature is many, strength of electric field is 5kv/cm, and temperature is 350 DEG C, and soaking time is 10 hours.
Respectively the 2A01 aluminum alloy specimen after crude 2A01 aluminum alloy specimen and embodiment 1 ~ 4 ageing treatment is put into 10%NaOH and 5%HCl solution, corrode 100 hours in room temperature, corrosion weight loss result is as shown in table 1.
The corrosion weight loss result of the aluminum alloy plate materials of table 1 embodiment
Respectively the 2A01 aluminum alloy specimen after crude 2A01 aluminum alloy specimen and embodiment 1 ~ 4 ageing treatment is carried out stress corrosion (cracking) test.
Test method: slow strain original rate test (SSRT)
Testing installation: SCC-1 stress corrosion (cracking) test machine
Test parameter: strain rate 1 × 10
-6s
-1, test(ing) medium 50%NaOH+0.3%SiO
2+ 0.3%Na
2s
2o
5(massfraction composition) solution, normal temperature and pressure
Test-results is as shown in table 2.
The stress corrosion result of the aluminum alloy plate materials of table 2 embodiment
In table 2, δ is sample unit elongation; RA is sample section shrinking percentage; CGR is SCC crack growth rate; I is SCC sensitivity indices (stress-strain curve integral area); UTS is maximum stress.
As can be seen from Table 2, the ability of the opposing stress corrosion of 2A01 aluminium alloy of the present invention obtains significant raising.
The explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a working method for 2A01 aluminum alloy plate materials, is characterized in that, comprises the following steps:
Step a) by 2A01 aluminum alloy plate materials 490 ~ 510 DEG C of quenchings, be incubated 5 ~ 30 hours;
Step b) 2A01 aluminum alloy plate materials applied in a thickness direction 4% ~ 6% compression set;
Step c) the 2A01 aluminum alloy plate materials after compression set is carried out one-level ageing treatment after the match outside electric field-temperature is many, strength of electric field is 10 ~ 20kv/cm, and temperature is 360 ~ 380 DEG C, and soaking time is 2 ~ 20 hours.
2. working method according to claim 1, is characterized in that, the temperature of described quenching is 495 DEG C ~ 510 DEG C.
3. working method according to claim 1, is characterized in that, described step soaking time a) is 10 ~ 20 hours.
4. working method according to claim 1, is characterized in that, 2A01 aluminum alloy plate materials is applied in a thickness direction to the compression set of 4% ~ 5%.
5. working method according to claim 1, is characterized in that, applies compression set carry out at ambient temperature described 2A01 aluminum alloy plate materials.
6. working method according to claim 1, is characterized in that, the strength of electric field of described one-level ageing treatment is 12 ~ 16kv/cm.
7. working method according to claim 1, is characterized in that, the temperature of described one-level ageing treatment is 360 ~ 370 DEG C.
8. working method according to claim 1, is characterized in that, the soaking time of described one-level ageing treatment is 5 ~ 10 hours.
9. working method according to claim 1, is characterized in that, also comprises:
2A01 aluminum alloy plate materials after one-level ageing treatment is carried out secondary time effect process after the match outside electric field-temperature is many, and strength of electric field is 2 ~ 8kv/cm, and temperature is 350 ~ 370 DEG C, and soaking time is 5 ~ 20 hours.
10. working method according to claim 9, is characterized in that, the strength of electric field of described secondary time effect process is 5 ~ 8kv/cm.
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| CN201410579513.2A CN104357777A (en) | 2014-10-24 | 2014-10-24 | Processing method of 2A01 aluminum alloy plate |
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| CN201410579513.2A CN104357777A (en) | 2014-10-24 | 2014-10-24 | Processing method of 2A01 aluminum alloy plate |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570839A (en) * | 2009-04-24 | 2009-11-04 | 中南大学 | High field aging heat treatment method for aluminum alloy |
| CN102534324A (en) * | 2012-02-28 | 2012-07-04 | 北京工业大学 | High-zinc high-strength Al-Zn-Mg-Cu aluminum alloy heat treatment technique |
| CN102978452A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Sn-RE aluminum alloy, and preparation method and power cable thereof |
| CN102978450A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Mo-RE aluminum alloy, and preparation method and power cable thereof |
-
2014
- 2014-10-24 CN CN201410579513.2A patent/CN104357777A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570839A (en) * | 2009-04-24 | 2009-11-04 | 中南大学 | High field aging heat treatment method for aluminum alloy |
| CN102534324A (en) * | 2012-02-28 | 2012-07-04 | 北京工业大学 | High-zinc high-strength Al-Zn-Mg-Cu aluminum alloy heat treatment technique |
| CN102978452A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Sn-RE aluminum alloy, and preparation method and power cable thereof |
| CN102978450A (en) * | 2012-11-09 | 2013-03-20 | 安徽欣意电缆有限公司 | Al-Fe-Mo-RE aluminum alloy, and preparation method and power cable thereof |
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Application publication date: 20150218 |