CN104561681A - 6016 aluminium alloy sheet for automotive body and production method of 6016 aluminium alloy sheet - Google Patents
6016 aluminium alloy sheet for automotive body and production method of 6016 aluminium alloy sheet Download PDFInfo
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- CN104561681A CN104561681A CN201410800786.5A CN201410800786A CN104561681A CN 104561681 A CN104561681 A CN 104561681A CN 201410800786 A CN201410800786 A CN 201410800786A CN 104561681 A CN104561681 A CN 104561681A
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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
- C22C21/02—Alloys based on aluminium with silicon 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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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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
- C22F1/043—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
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Abstract
The invention relates to a 6016 aluminium alloy sheet for an automotive body and a production method of the 6016 aluminium alloy sheet. The 6016 aluminium alloy sheet for the automotive body comprises the following chemical ingredients in percentage by mass: 1.08-1.12% of Si, 0-0.2% of Fe, 0.07-0.11% of Cu, 0.03-0.07% of Mn, 0.53-0.57% of Mg, 0.1-0.15% of Cr, 0.01-0.02% of Ti and the balance of Al. The 6016 aluminium alloy sheet for the automotive body has the advantages that processing steps, namely smelting, casting, surface milling, hot rolling, cold rolling and heat treatment, are carried out, HB front elongation and HB rear yield strength of the aluminium alloy sheet are improved, yield during punching is increased, cost of an auto manufacturer is reduced, and formability and baking hardening property of the aluminium alloy sheet are improved, so that 6016 aluminium alloy sheet for the automotive body has a broad market prospect and obvious economic benefit.
Description
Technical field
The invention belongs to the processing technology field of Aluminum alloy for automotive body sheet material, relate to a kind of body of a motor car 6016 line aluminium alloy thin plate and production methods thereof.
Background technology
Before 2004, there is research 5xxx system aluminium alloys for automobile aluminium sheet both at home and abroad, also research 2xxx system and 6xxx line aluminium alloy is had, but from 2005 Nian Qi various countries material supplier author suggestion relatively unifications, the over-all properties of 6xxx line aluminium alloy is better than 2xxx system and 5xxx line aluminium alloy, 6xxx line aluminium alloy, as heat-treatable strengthened aluminum alloy, has high strength and the feature such as weldability is good, and is widely used in communications and transportation and building field after Overheating Treatment.
6016 Aluminium Alloy Plates can be used for the material manufacturing invisible parts in car door, vehicle window and body structure, the processing mode perfect adaptation of excellent formability and high performance-price ratio.
6016 Aluminium Alloy Plates are mainly in the production technique of aluminium sheet factory: batching-melting-refining-interpolation grain-refining agent-casting-sawing-milling face-homogenizing thermal treatment-hot rolling-thermal treatment-cold rolling-thermal treatment (two-stage time effect)-transport automobile factory carries out punching press and baking hardening (HB) process, and 6016 Aluminium Alloy Plates often affect final roasting hardening effect because there is natural aging in transport automobile factory process.
Summary of the invention
The object of the present invention is to provide a kind of body of a motor car 6016 Aluminium Alloy Plates, to improve before the HB of aluminum alloy plate materials yield strength after elongation and HB, improve plasticity and the baking hardenability of aluminum alloy plate materials.
Another object of the present invention is also the production method providing a kind of body of a motor car with 6016 Aluminium Alloy Plates.
For achieving the above object, the present invention adopts following technical scheme:
A kind of body of a motor car 6016 Aluminium Alloy Plates, the chemical composition of described Aluminium Alloy Plate and mass percent are: Si 1.08 ~ 1.12%, Fe 0 ~ 0.2%, Cu 0.07 ~ 0.11%, Mn 0.03 ~ 0.07%, Mg 0.53 ~ 0.57%, Cr 0.1 ~ 0.15%, Ti 0.01 ~ 0.02%, surplus is Al.
A body of a motor car production method for 6016 Aluminium Alloy Plates, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of Aluminium Alloy Plate described above, smelting aluminium alloy starting material under the condition of 720 ~ 750 DEG C, when raw material of aluminum alloy 50% ~ 60% is molten into aluminium liquid, open and stir, after raw material of aluminum alloy all melts, water under being cooled to 700 ~ 710 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 560 ~ 580 DEG C, insulation 8 ~ 10 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 355 ~ 365 DEG C;
(4) cold rolling: aluminium alloy plate step (3) obtained is at 380 ~ 390 DEG C, after 2.5 ~ 3 h process annealings, then aluminium alloy plate is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, finally be cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 560 ~ 570 DEG C of solution treatment, soaking time is 80 ~ 100 s, carry out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then Pre-aging treatment is carried out, pre-age temperature controls at 110 ~ 180 DEG C, insulation 1 ~ 2 min.
According to the production method of above-mentioned body of a motor car with 6016 Aluminium Alloy Plates, the stirring described in step (1) is that permanent magnetism blender stirs.
According to the production method of above-mentioned body of a motor car with 6016 Aluminium Alloy Plates, step (5) pre-ageing treatment temperature is 150 DEG C, is incubated 1 min.
positive beneficial effect of the present invention
1. body of a motor car of the present invention is with 6016 Aluminium Alloy Plates by after thermal treatment process of the present invention, well eliminates because natural aging causes baking hardening poor effect;
2. body of a motor car of the present invention with 6016 Aluminium Alloy Plate pretreatment technology solution times and preageing soaking time all shorter, to improve before the HB of aluminum alloy plate materials yield strength after elongation and HB, yield rate during raising punching press, reduce auto vendor's cost, improve plasticity and the baking hardenability of aluminum alloy plate materials, there is wide market outlook and significant economic benefit.
Embodiment
Below in conjunction with some specific embodiments, the present invention is further described.
A kind of body of a motor car 6016 Aluminium Alloy Plates, the chemical composition of described Aluminium Alloy Plate and mass percent are in table 1.
Table 1 the body of a motor car chemical composition of 6016 Aluminium Alloy Plates and mass percent (wt%)
。
The arbitrarily described body of a motor car of one of example 1 ~ 3 one of production method of 6016 Aluminium Alloy Plates, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of the Aluminium Alloy Plate one of embodiment 1 ~ 3 Suo Shu, smelting aluminium alloy starting material under the condition of 735 DEG C, when raw material of aluminum alloy 50% is molten into aluminium liquid, unlatching permanent magnetism blender stirs, after raw material of aluminum alloy all melts, water under being cooled to 710 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 570 DEG C, be incubated 10 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 361 DEG C;
(4) cold rolling: aluminium alloy plate, at 385 DEG C, after 2.5 h process annealings, then is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, be finally cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick by aluminium alloy plate step (3) obtained, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 560 DEG C of solution treatment, and soaking time is 100 s, carries out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then carry out Pre-aging treatment, pre-age temperature controls, at 110 DEG C, to be incubated 1 min.
The body of a motor car production method two of 6016 Aluminium Alloy Plates that one of example 1 ~ 3 is described arbitrarily, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of the Aluminium Alloy Plate one of embodiment 1 ~ 3 Suo Shu, smelting aluminium alloy starting material under the condition of 740 DEG C, when raw material of aluminum alloy 60% is molten into aluminium liquid, unlatching permanent magnetism blender stirs, after raw material of aluminum alloy all melts, water under being cooled to 700 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 570 DEG C, be incubated 9 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 364 DEG C;
(4) cold rolling: aluminium alloy plate, at 380 DEG C, after 3 h process annealings, then is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, be finally cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick by aluminium alloy plate step (3) obtained, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 560 DEG C of solution treatment, and soaking time is 90 s, carries out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then carry out Pre-aging treatment, pre-age temperature controls, at 130 DEG C, to be incubated 1 min.
The body of a motor car production method three of 6016 Aluminium Alloy Plates that one of example 1 ~ 3 is described arbitrarily, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of the Aluminium Alloy Plate one of embodiment 1 ~ 3 Suo Shu, smelting aluminium alloy starting material under the condition of 745 DEG C, when raw material of aluminum alloy 50% is molten into aluminium liquid, unlatching permanent magnetism blender stirs, after raw material of aluminum alloy all melts, water under being cooled to 700 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 570 DEG C, be incubated 9 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 365 DEG C;
(4) cold rolling: aluminium alloy plate, at 380 DEG C, after 3 h process annealings, then is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, be finally cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick by aluminium alloy plate step (3) obtained, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 560 DEG C of solution treatment, and soaking time is 100 s, carries out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then carry out Pre-aging treatment, pre-age temperature controls, at 150 DEG C, to be incubated 1 min.
The body of a motor car production method four of 6016 Aluminium Alloy Plates that one of example 1 ~ 3 is described arbitrarily, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of the Aluminium Alloy Plate one of embodiment 1 ~ 3 Suo Shu, smelting aluminium alloy starting material under the condition of 740 DEG C, when raw material of aluminum alloy 55% is molten into aluminium liquid, unlatching permanent magnetism blender stirs, after raw material of aluminum alloy all melts, water under being cooled to 710 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 570 DEG C, be incubated 9 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 355 DEG C;
(4) cold rolling: aluminium alloy plate, at 390 DEG C, after 3 h process annealings, then is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, be finally cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick by aluminium alloy plate step (3) obtained, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 570 DEG C of solution treatment, and soaking time is 80 s, carries out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then carry out Pre-aging treatment, pre-age temperature controls, at 180 DEG C, to be incubated 1 min.
The body of a motor car production method five of 6016 Aluminium Alloy Plates that one of example 1 ~ 3 is described arbitrarily, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of the Aluminium Alloy Plate one of embodiment 1 ~ 3 Suo Shu, smelting aluminium alloy starting material under the condition of 740 DEG C, when raw material of aluminum alloy 50% is molten into aluminium liquid, unlatching permanent magnetism blender stirs, after raw material of aluminum alloy all melts, water under being cooled to 710 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 570 DEG C, be incubated 9 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 360 DEG C;
(4) cold rolling: aluminium alloy plate, at 390 DEG C, after 3 h process annealings, then is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, be finally cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick by aluminium alloy plate step (3) obtained, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 560 DEG C of solution treatment, and soaking time is 100 s, carries out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then carry out Pre-aging treatment, pre-age temperature controls, at 110 DEG C, to be incubated 2 min.
The body of a motor car production method six of 6016 Aluminium Alloy Plates that one of example 1 ~ 3 is described arbitrarily, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of the Aluminium Alloy Plate one of embodiment 1 ~ 3 Suo Shu, smelting aluminium alloy starting material under the condition of 750 DEG C, when raw material of aluminum alloy 50% is molten into aluminium liquid, unlatching permanent magnetism blender stirs, after raw material of aluminum alloy all melts, water under being cooled to 700 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 580 DEG C, be incubated 8 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 365 DEG C;
(4) cold rolling: aluminium alloy plate, at 380 DEG C, after 3 h process annealings, then is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, be finally cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick by aluminium alloy plate step (3) obtained, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 570 DEG C of solution treatment, and soaking time is 80 s, carries out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then carry out Pre-aging treatment, pre-age temperature controls, at 130 DEG C, to be incubated 2 min.
The body of a motor car production method seven of 6016 Aluminium Alloy Plates that one of example 1 ~ 3 is described arbitrarily, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of the Aluminium Alloy Plate one of embodiment 1 ~ 3 Suo Shu, smelting aluminium alloy starting material under the condition of 745 DEG C, when raw material of aluminum alloy 50% is molten into aluminium liquid, unlatching permanent magnetism blender stirs, after raw material of aluminum alloy all melts, water under being cooled to 700 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 570 DEG C, be incubated 9 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 365 DEG C;
(4) cold rolling: aluminium alloy plate, at 380 DEG C, after 3 h process annealings, then is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, be finally cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick by aluminium alloy plate step (3) obtained, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 560 DEG C of solution treatment, and soaking time is 100 s, carries out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then carry out Pre-aging treatment, pre-age temperature controls, at 150 DEG C, to be incubated 2 min.
The body of a motor car production method eight of 6016 Aluminium Alloy Plates that one of example 1 ~ 3 is described arbitrarily, comprises the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of the Aluminium Alloy Plate one of embodiment 1 ~ 3 Suo Shu, smelting aluminium alloy starting material under the condition of 740 DEG C, when raw material of aluminum alloy 50% is molten into aluminium liquid, unlatching permanent magnetism blender stirs, after raw material of aluminum alloy all melts, water under being cooled to 710 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 570 DEG C, be incubated 9 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 355 DEG C;
(4) cold rolling: aluminium alloy plate, at 390 DEG C, after 3 h process annealings, then is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, be finally cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick by aluminium alloy plate step (3) obtained, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 565 DEG C of solution treatment, and soaking time is 90 s, carries out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then carry out Pre-aging treatment, pre-age temperature controls, at 180 DEG C, to be incubated 2 min.
By the Aluminium Alloy Plate described in embodiment 1 ~ 3 through one of arbitrarily production method preparation described above, natural aging 7d or 15 d under room temperature, then predeformation (2% stretches) and aging strengthening model (aging temp 170 DEG C is carried out, be incubated 30 min), to detect before the HB of Aluminium Alloy Plate yield strength (MPa) after elongation (%) and HB, the results are shown in Table 2 and 3.
Elongation (%) and rear yield strength (MPa) before the HB of table 2 natural aging 7d under different preageing condition
Elongation (%) and rear yield strength (MPa) before the HB of table 3 natural aging 15d under different preageing condition
.
Claims (4)
1. body of a motor car 6016 Aluminium Alloy Plates, it is characterized in that, the chemical composition of described Aluminium Alloy Plate and mass percent are: Si 1.08 ~ 1.12%, Fe 0 ~ 0.2%, Cu 0.07 ~ 0.11%, Mn 0.03 ~ 0.07%, Mg 0.53 ~ 0.57%, Cr 0.1 ~ 0.15%, Ti 0.01 ~ 0.02%, surplus is Al.
2. the body of a motor car according to claim 1 production method of 6016 Aluminium Alloy Plates, is characterized in that, comprise the following steps:
(1) melting and casting: by chemical composition and the mass percent preparation raw material of aluminum alloy of Aluminium Alloy Plate according to claim 1, smelting aluminium alloy starting material under the condition of 720 ~ 750 DEG C, when raw material of aluminum alloy 50% ~ 60% is molten into aluminium liquid, open and stir, after raw material of aluminum alloy all melts, water under being cooled to 700 ~ 710 DEG C of conditions and build up aluminium alloy cast ingot;
(2) milling face: by step (1) aluminium alloy cast ingot cutting head cutting tail, then milling face;
(3) heat prick: by step (2) process after aluminium alloy cast ingot be heated to 560 ~ 580 DEG C, insulation 8 ~ 10 h, then at 1+4 hot continuous rolling to thickness 4.5 mm aluminium alloy plate, finishing temperature is 355 ~ 365 DEG C;
(4) cold rolling: aluminium alloy plate step (3) obtained is at 380 ~ 390 DEG C, after 2.5 ~ 3 h process annealings, then aluminium alloy plate is cold-rolled to 2.5 mm by 4.5 mm, then is cold-rolled to 1.5 mm, finally be cold-rolled to the Aluminium Alloy Plate that 1.0 mm are thick, stretch-bending straightening cleans;
(5) thermal treatment: Aluminium Alloy Plate step (4) obtained is 560 ~ 570 DEG C of solution treatment, soaking time is 80 ~ 100 s, carry out air-cooled immediately, in 5 min, temperature is down to less than 50 DEG C, then Pre-aging treatment is carried out, pre-age temperature controls at 110 ~ 180 DEG C, insulation 1 ~ 2 min.
3. the body of a motor car according to claim 2 production method of 6016 Aluminium Alloy Plates, is characterized in that, the stirring described in step (1) is that permanent magnetism blender stirs.
4. the body of a motor car according to claim 2 production method of 6016 Aluminium Alloy Plates, is characterized in that, step (5) pre-ageing treatment temperature is 150 DEG C, is incubated 1 min.
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| CN105925858A (en) * | 2016-06-12 | 2016-09-07 | 山东南山铝业股份有限公司 | Aluminum alloy sheet and production method thereof |
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| CN113584356A (en) * | 2021-07-15 | 2021-11-02 | 江苏库纳实业有限公司 | High-strength aluminum alloy automobile body plate and preparation method thereof |
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| CN105925858A (en) * | 2016-06-12 | 2016-09-07 | 山东南山铝业股份有限公司 | Aluminum alloy sheet and production method thereof |
| CN106244958A (en) * | 2016-09-12 | 2016-12-21 | 东莞市铝美铝型材有限公司 | A kind of Technology for Heating Processing of electroconductive aluminium strip |
| CN106244958B (en) * | 2016-09-12 | 2018-06-22 | 东莞市铝美铝型材有限公司 | A kind of heat treatment process of electroconductive aluminium strip |
| CN106624653A (en) * | 2016-12-27 | 2017-05-10 | 西南铝业（集团）有限责任公司 | Production method for 6061T6 aluminum alloy plate |
| CN106591751A (en) * | 2016-12-30 | 2017-04-26 | 西南铝业（集团）有限责任公司 | 2060 alloy intermediate annealing process method |
| CN113584356A (en) * | 2021-07-15 | 2021-11-02 | 江苏库纳实业有限公司 | High-strength aluminum alloy automobile body plate and preparation method thereof |
| CN114214580A (en) * | 2021-12-22 | 2022-03-22 | 西南铝业（集团）有限责任公司 | Pre-aging method of 6016 aluminum alloy automobile body plate |
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