CN109468504A - A kind of corrosion-resistant automotive light weight technology aluminum profile - Google Patents
A kind of corrosion-resistant automotive light weight technology aluminum profile Download PDFInfo
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- CN109468504A CN109468504A CN201811390129.2A CN201811390129A CN109468504A CN 109468504 A CN109468504 A CN 109468504A CN 201811390129 A CN201811390129 A CN 201811390129A CN 109468504 A CN109468504 A CN 109468504A
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- corrosion
- light weight
- aluminum profile
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- technology aluminum
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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
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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
- C22F1/047—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 magnesium as the next major constituent
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a kind of corrosion-resistant automotive light weight technology aluminum profile, the weight percent of each component is as follows: Si:0.5-0.6%, Fe:0.03-0.05%, Cu:0.1-0.2%, Mn:0.1-0.2%, Mg:1.2-1.25%, Cr:0.1-0.2%, Zn:0.1-0.2%, Ti:0.05-0.1%, Zr:0.08-0.12%, Y:0.04-0.06%, Sc:0.02-0.04%, surplus Al.The present invention has good intensity and corrosion resistance.
Description
Technical field
The present invention relates to aluminum profile technical field more particularly to a kind of corrosion-resistant automotive light weight technology aluminum profiles.
Background technique
Automobile is provided convenience for people's lives, and at present since environmental protection and energy conservation need, automotive light weight technology has become
The trend of world car development.Aluminum alloy materials are with density is low, thermal conductivity is good, machining property is good, energy absorption capacity is good, Yi Huishou
The advantages that, the advantage that aluminium alloy has its natural in automotive light weight technology application, if loss of weight, energy-saving effect are obvious, passenger's is comfortable
Property, safety obtain improve etc..
Aluminum alloy materials are widely applied to manufacture auto body sheet, in order to meet the needs of auto body sheet, aluminium
Alloy will not only meet the requirement such as intensity, formability, also have a good corrosion resistance, but these three performances are often not
It can have both.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of corrosion-resistant automotive light weight technology aluminum profiles, originally
Invention has good intensity and corrosion resistance.
A kind of corrosion-resistant automotive light weight technology aluminum profile proposed by the present invention, the weight percent of each component are as follows: Si:
0.5-0.6%, Fe:0.03-0.05%, Cu:0.1-0.2%, Mn:0.1-0.2%, Mg:1.2-1.25%, Cr:0.1-
0.2%, Zn:0.1-0.2%, Ti:0.05-0.1%, Zr:0.08-0.12%, Y:0.04-0.06%, Sc:0.02-0.04%,
Surplus is Al.
Preferably, the weight percent of each component is as follows: Si:0.53-0.57%, Fe:0.035-0.045%, Cu:
0.12-0.18%, Mn:0.12-0.18%, Mg:1.21-1.23%, Cr:0.13-0.17%, Zn:0.13-0.17%, Ti:
0.06-0.08%, Zr:0.09-0.11%, Y:0.045-0.055%, Sc:0.025-0.035%, surplus Al.
Preferably, in the preparation process of corrosion-resistant automotive light weight technology aluminum profile, aluminium ingot is melted, remaining each raw material is added
Melting, casting obtain ingot casting;Ingot casting is taken to be dissolved, hot rolling, quenching, first cold rolling, intermediate annealing, final cold rolling, final annealing, in advance
Timeliness, punch forming, final timeliness obtain corrosion-resistant automotive light weight technology aluminum profile.
Preferably, the temperature of solid solution is 500-540 DEG C, time 1-2h.
Preferably, the program of intermediate anneal temperature are as follows: be warming up to 420-440 DEG C with the speed of 10-20 DEG C/min, heat preservation
20-40min is cooled to room temperature.
Preferably, the program of final annealing are as follows: be warming up to 260-280 DEG C with the speed of 10-20 DEG C/min, keep the temperature 10-
15min, then it is warming up to 380-400 DEG C with the speed of 1-5 DEG C/min, 30-60min is kept the temperature, is cooled to room temperature.
Preferably, the temperature of preageing is 140-160 DEG C, time 15-30min.
Preferably, the temperature of final timeliness is 160-200 DEG C, time 3-4h.
Preferably, the process of raw material melting carries out in argon atmosphere.
The present invention increases intensity of the invention by adjusting the content of Cu, and Mg, Si are adjusted on the basis of Cu content
Content improves Cu content and increases intercrystalline corrosion problem caused by the problem of bring corrosion resistance reduces, Si, three's phase interworking
It closes, so that having good corrosion resistance while the present invention is with good strength;Cr, Zr, Y, Sc are with appropriate level phase interworking
It closes, increases the quenching sensitive of aluminium alloy, to improve mechanical property of the invention, and Zr, Sc and matrix can be formed
Al3Zr、Al3Sc、Al3(Zr, Sc) particle, these particle sizes are tiny, and disperse in the base, further increases intensity of the present invention;
Cr, Mn are cooperated with proper ratio, can refine recrystal grain, improve intensity of the invention, and can increase the present invention
Corrosion resistance;Mn can also reduce the adverse effect of Fe;On the basis of above-mentioned each element proportion, suitable consolidate is selected
Molten, intermediate annealing, final annealing, preageing, final aging technique increase machining property of the invention and further increase
Corrosion resistance and intensity of the invention;Above-mentioned each element proportion and technique cooperate, so that the present invention has both good intensity
And corrosion resistance.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
Embodiment 1
A kind of corrosion-resistant automotive light weight technology aluminum profile, the weight percent of each component are as follows: Si:0.55%, Fe:
0.04%, Cu:0.15%, Mn:0.15%, Mg:1.22%, Cr:0.15%, Zn:0.15%, Ti:0.07%, Zr:0.1%,
Y:0.05%, Sc:0.03%, surplus Al.
Embodiment 2
A kind of corrosion-resistant automotive light weight technology aluminum profile, the weight percent of each component are as follows: Si:0.5%, Fe:
0.05%, Cu:0.1%, Mn:0.2%, Mg:1.2%, Cr:0.2%, Zn:0.1%, Ti:0.1%, Zr:0.08%, Y:
0.06%, Sc:0.02%, surplus Al;
In the preparation process of corrosion-resistant automotive light weight technology aluminum profile, aluminium ingot is melted, remaining each raw material melting is added, pours
Note obtains ingot casting;Ingot casting is taken to be dissolved, hot rolling, quenching, first cold rolling, intermediate annealing, final cold rolling, final annealing, preageing, punching
Molded, final timeliness obtains corrosion-resistant automotive light weight technology aluminum profile.
Embodiment 3
A kind of corrosion-resistant automotive light weight technology aluminum profile, the weight percent of each component are as follows: Si:0.6%, Fe:
0.03%, Cu:0.2%, Mn:0.1%, Mg:1.25%, Cr:0.1%, Zn:0.2%, Ti:0.05%, Zr:0.12%, Y:
0.04%, Sc:0.04%, surplus Al;
In the preparation process of corrosion-resistant automotive light weight technology aluminum profile, aluminium ingot is melted, remaining each raw material is added, in argon gas
It is melted in atmosphere, casting obtains ingot casting;Take ingot casting to be warming up to 500 DEG C, be dissolved 2h, hot rolling, quenching, first cold rolling, with 10 DEG C/
The speed of min is warming up to 440 DEG C, keeps the temperature 20min, is cooled to room temperature, final cold rolling, is warming up to 260 with the speed of 20 DEG C/min
DEG C, 15min is kept the temperature, then be warming up to 400 DEG C with the speed of 1 DEG C/min, keeps the temperature 30min, be cooled to room temperature, then heat to 160
DEG C, 15min, punch forming are kept the temperature, final timeliness obtains corrosion-resistant automotive light weight technology aluminum profile, wherein the temperature of final timeliness
It is 200 DEG C, time 3h.
Embodiment 4
A kind of corrosion-resistant automotive light weight technology aluminum profile, the weight percent of each component are as follows: Si:0.53%, Fe:
0.045%, Cu:0.12%, Mn:0.18%, Mg:1.21%, Cr:0.17%, Zn:0.13%, Ti:0.08%, Zr:
0.09%, Y:0.055%, Sc:0.025%, surplus Al;
In the preparation process of corrosion-resistant automotive light weight technology aluminum profile, aluminium ingot is melted, remaining each raw material is added, in argon gas
It is melted in atmosphere, casting obtains ingot casting;Take ingot casting to be warming up to 540 DEG C, be dissolved 1h, hot rolling, quenching, first cold rolling, with 20 DEG C/
The speed of min is warming up to 420 DEG C, keeps the temperature 40min, is cooled to room temperature, final cold rolling, is warming up to 280 with the speed of 10 DEG C/min
DEG C, 10min is kept the temperature, then be warming up to 380 DEG C with the speed of 5 DEG C/min, keeps the temperature 60min, be cooled to room temperature, then heat to 140
DEG C, 30min, punch forming are kept the temperature, final timeliness obtains corrosion-resistant automotive light weight technology aluminum profile, wherein the temperature of final timeliness
It is 160 DEG C, time 4h.
Embodiment 5
A kind of corrosion-resistant automotive light weight technology aluminum profile, the weight percent of each component are as follows: Si:0.57%, Fe:
0.035%, Cu:0.18%, Mn:0.12%, Mg:1.23%, Cr:0.13%, Zn:0.17%, Ti:0.06%, Zr:
0.11%, Y:0.045%, Sc:0.035%, surplus Al;
In the preparation process of corrosion-resistant automotive light weight technology aluminum profile, aluminium ingot is melted, remaining each raw material is added, in argon gas
It is melted in atmosphere, casting obtains ingot casting;Take ingot casting to be warming up to 520 DEG C, be dissolved 1.5h, hot rolling, quenching, first cold rolling, with 15 DEG C/
The speed of min is warming up to 430 DEG C, keeps the temperature 30min, is cooled to room temperature, final cold rolling, is warming up to 270 with the speed of 15 DEG C/min
DEG C, 12min is kept the temperature, then be warming up to 390 DEG C with the speed of 3 DEG C/min, keeps the temperature 45min, be cooled to room temperature, then heat to 150
DEG C, 22min, punch forming are kept the temperature, final timeliness obtains corrosion-resistant automotive light weight technology aluminum profile, wherein the temperature of final timeliness
It is 180 DEG C, time 3.5h.
Performance detection is carried out to embodiment 5, and using commercially available 6061 aluminum alloy plate materials as control group, as a result as follows:
The present invention has good corrosion resistance and intensity as can be seen from the above table.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of corrosion-resistant automotive light weight technology aluminum profile, which is characterized in that the weight percent of its each component is as follows: Si:0.5-
0.6%, Fe:0.03-0.05%, Cu:0.1-0.2%, Mn:0.1-0.2%, Mg:1.2-1.25%, Cr:0.1-0.2%, Zn:
0.1-0.2%, Ti:0.05-0.1%, Zr:0.08-0.12%, Y:0.04-0.06%, Sc:0.02-0.04%, surplus Al.
2. corrosion-resistant automotive light weight technology aluminum profile according to claim 1, which is characterized in that the weight percent of its each component
It is as follows: Si:0.53-0.57%, Fe:0.035-0.045%, Cu:0.12-0.18%, Mn:0.12-0.18%, Mg:1.21-
1.23%, Cr:0.13-0.17%, Zn:0.13-0.17%, Ti:0.06-0.08%, Zr:0.09-0.11%, Y:0.045-
0.055%, Sc:0.025-0.035%, surplus Al.
3. corrosion-resistant automotive light weight technology aluminum profile according to claim 1 or claim 2, which is characterized in that in corrosion-resistant automobile light weight
In the preparation process for changing aluminum profile, aluminium ingot is melted, remaining each raw material melting is added, casting obtains ingot casting;Ingot casting is taken to be dissolved, heat
It rolls, quenches, first cold rolling, intermediate annealing, final cold rolling, final annealing, preageing, punch forming, final timeliness obtains corrosion resistant
Lose automotive light weight technology aluminum profile.
4. corrosion-resistant automotive light weight technology aluminum profile according to claim 3, which is characterized in that the temperature of solid solution is 500-540
DEG C, time 1-2h.
5. according to the corrosion-resistant automotive light weight technology aluminum profile of claim 3 or 4, which is characterized in that the journey of intermediate anneal temperature
Sequence are as follows: be warming up to 420-440 DEG C with the speed of 10-20 DEG C/min, keep the temperature 20-40min, be cooled to room temperature.
6. according to any one of the claim 3-5 corrosion-resistant automotive light weight technology aluminum profile, which is characterized in that the journey of final annealing
Sequence are as follows: be warming up to 260-280 DEG C with the speed of 10-20 DEG C/min, keep the temperature 10-15min, then heat up with the speed of 1-5 DEG C/min
To 380-400 DEG C, 30-60min is kept the temperature, is cooled to room temperature.
7. according to any one of the claim 3-6 corrosion-resistant automotive light weight technology aluminum profile, which is characterized in that the temperature of preageing
It is 140-160 DEG C, time 15-30min.
8. according to any one of the claim 3-7 corrosion-resistant automotive light weight technology aluminum profile, which is characterized in that the temperature of final timeliness
Degree is 160-200 DEG C, time 3-4h.
9. according to any one of the claim 3-8 corrosion-resistant automotive light weight technology aluminum profile, which is characterized in that the mistake of raw material melting
Journey carries out in argon atmosphere.
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Cited By (1)
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CN116136004A (en) * | 2023-04-18 | 2023-05-19 | 合肥工业大学 | Aluminum-based composite material with gradient multi-layer structure |
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