CN106756285A - A kind of preparation method of 6022 aluminum alloy plate materials - Google Patents
A kind of preparation method of 6022 aluminum alloy plate materials Download PDFInfo
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- CN106756285A CN106756285A CN201611006519.6A CN201611006519A CN106756285A CN 106756285 A CN106756285 A CN 106756285A CN 201611006519 A CN201611006519 A CN 201611006519A CN 106756285 A CN106756285 A CN 106756285A
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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
- 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
Abstract
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：Prepare 6022 aluminium alloy cast ingots；400~480 DEG C are heated to, hot rolling obtains hot rolled plate after insulation；Hot rolled plate is heated to 420~440 DEG C, stove is cooled to room temperature after insulation, cold rolling to obtain cold-reduced sheet；Again through solution treatment, room temperature placement, Pre-aging treatment, and room temperature is placed again, as T4P states, and 6022 aluminum alloy plate materials are obtained.Ingot casting conventional high temperature Homogenization Treatments are the method reduce, shortens technological process, energy saving, improve production efficiency is greatly lowered cost；And can implement on existing aluminium alloy production line, it is not necessary to increase equipment and technology investment, it is simple to operate；Be obtained in 6022 aluminum alloy plate materials superfluous crystalline phase particle size is tiny, Dispersed precipitate, beneficial to 6022 aluminium sheet punching performances are improved, realize in reduces cost the performance requirement while in fully meeting punching production.
Description
Technical field：
The invention belongs to technical field of aluminum alloy technology, and in particular to a kind of preparation method of 6022 aluminum alloy plate materials.
Background technology：
Environmental pollution, energy crisis and safe three major issues are brought while auto industry high speed development.Due to Automobile
Body accounts for 30% of complete vehicle weight or so, and it is current automobile loss of weight to reduce energy to use light material to substitute traditional Body Steel Plate
One of consumption, the most direct effective approach for reducing pollution, lifting running car stationarity and security.It is wherein heat-treatable strengthened
6xxx line aluminium alloys due to specific strength and specific stiffness high, good formability and baking hardening ability, excellent subtracting
The features such as shake shock resistance, easy recovery against corrosion, has become preferable lightweight automotive car body panel material.Past attempts are used to produce
The aluminium sheet species of body of a motor car mainly has 6009-T4P, 6010-T4P, 6111-T4P, 6016-T4P, 6022-T4P etc..Wherein,
Because 6022 aluminium alloys not only have intensity higher, and there is excellent corrosion resisting property higher than 6111 aluminium alloys, it is this kind of
Car body of aluminum alloy plate is used widely in north America region, and Alcoa Chinalcos are 6022-T4E29 (being heat-treated for internal) Shen
Please patent protection, and put into industrialized production and in Ford Crow Victoria, Crand Marquis and
It is applied on the outside plate of Taurus/Sable vehicles and many inner panels.However, aluminum current alloy car body panel material cost is to pass
2~4 times of system car body panel material-steel plate, this seriously inhibits the process of body of a motor car calorize.Therefore, 6022 aluminium alloys are reduced
The production cost of car body panel is imperative.
Body of a motor car is generally all by semi-continuous casting (Direct with the conventional machining process of 6022 aluminum alloy plate materials
Chill Casting, DC casting) method prepares alloy cast ingot, Homogenization Treatments then carried out to eliminate ingot casting dendritic segregation rush
Enter elements diffusion uniformly and improve hot-working character.Typically above 540 DEG C of 6022 aluminium alloy cast ingot Homogenization Treatments temperature, protect
The warm time significantly improves production cost more than 24h, not only time-consuming power consumption, the serious production efficiency that reduces, it is notable that uniform
Comprehending at change makes mainly to contain the superfluous crystalline phase nodularization of AlFeMnSi in alloy, is roughened and is distributed along dendrite border, it is possible to
The formability of follow-up sheet material can be reduced.Therefore, the body of a motor car short streamline production technology of 6022 aluminum alloy plate materials is developed to shorten
Production streamline, energy saving, improve production efficiency reduces car body of aluminum alloy plate production cost, and ensure that its sheet material has simultaneously
The research work of good mechanical property has stronger novelty and very strong scientific meaning and actual application value.
The content of the invention：
The object of the invention is to provide a kind of preparation method of 6022 aluminum alloy plate materials, and the preparation method is without high temperature
The direct hot rolling of Homogenization Treatments, Pre-aging treatment can meet motor vehicle bodywork component after cold rolling again after annealing, solid solution water quenching
Deep drawability and baking and hardening performance requirement, the method can shorten production procedure, energy saving, be greatly lowered and be produced into
This.
To achieve the above object, the present invention uses following technical scheme：
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：Prepare 6022 aluminium alloy cast ingots；
(2) heat：By 6022 aluminium alloy cast ingots, 400~480 DEG C are heated to, are incubated 4~12h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, carry out hot rolling, be obtained hot rolled plate, hot rolling plate thickness be 3~
6mm；
(4) intermediate annealing：Hot rolled plate is heated to 420~440 DEG C, after 1~2h of insulation, stove is cooled to room temperature, is annealed
State rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, cold rolling, prepared cold-reduced sheet is carried out；Wherein, Cold Rolled Plate Thickness is 0.8~1.2mm；
(6) solution treatment：Solution treatment is carried out to cold-reduced sheet, plate is rolled after forming solution treatment；Wherein, solution treatment plus
Hot temperature is 535~550 DEG C, and soaking time is 10~15min, and the type of cooling is water quenching to room temperature；
(7) room temperature is placed：5~30min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, plate is rolled after forming Pre-aging treatment；Its
In, pre-ageing treatment temperature is 140~190 DEG C, and the Pre-aging treatment time is 5~20min, and the type of cooling is to be air cooled to room temperature；
(9) room temperature is placed：To rolling plate after Pre-aging treatment, carry out room temperature and place more than 4 weeks, as T4P states, prepared 6022
Aluminum alloy plate materials.
In described step (1), the composition and its mass percent that 6022 aluminium alloy cast ingots contain are：Si：0.80~
1.50%, Mg：0.45~0.70%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%, Zn≤0.25%, Cr≤
0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al.
In described step (1), 6022 aluminium alloy cast ingots use direct water-cooling semi-continuous casting (Direct Chill
Semi-continuous Casting, abbreviation DC cast) it is obtained.
In described step (1), 6022 aluminium alloy cast ingots are processed by crop milling face.
In described step (3), hot rolling mode is that cross rolling is combined with longitudinally rolling.
Beneficial effects of the present invention：
(1) the inventive method reduces ingot casting conventional high temperature Homogenization Treatments, shortens technological process, and energy saving is carried
High efficiency, considerably reduces the production cost of 6022 car body of aluminum alloy plates.
(2) present invention process can be implemented on existing aluminium alloy production line, without changing existing frock, it is not necessary to which increase sets
Standby and technology investment, it is simple to operate feasible.
(3) the superfluous crystalline phase particle size prepared by the inventive method in 6022 aluminum alloy plate materials of processing is tiny, more
Distribution is dissipated, is conducive to improving the deep drawability of 6022 aluminum alloy plate materials, realized and fully meet punching press while reduces cost
Performance requirement in production, the economic results in society for bringing therefrom are considerable.
Brief description of the drawings：
Fig. 1 is optical microstructure's figure that the embodiment of the present invention 1 is obtained 6022 aluminum alloy plate materials；
Fig. 2 is optical microstructure's figure that comparative example of the present invention 1 is obtained 6022 aluminum alloy plate materials.
Specific embodiment：
With reference to embodiment, the present invention is described in further detail.
Embodiment 1
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 200mm, is contained
Composition and its mass percent be：Si：1.08%, Mg：0.57%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 472 DEG C, insulation are heated in wind furnace is circulated
11h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 17 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 5mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.0mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 540 DEG C,
Soaking time is 12min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：15min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 175 DEG C,
The Pre-aging treatment time is 15min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Comparative example 1
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 200mm, is contained
Composition and its mass percent be：Si：1.08%, Mg：0.57%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) 6022 aluminium alloy cast ingots are fitted into circulation wind furnace, after 2.5 hours are warming up to 545 DEG C of insulation 24h with stove, are gone out
Stove is air cooled to room temperature；
(3) heat：After 6022 aluminium alloy cast ingot crop milling faces treatment after by cooling, 455 DEG C are heated to, are incubated 4h；
(4) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 17 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 5mm；
(5) intermediate annealing：After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(6) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.0mm；
(7) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 540 DEG C,
Soaking time is 12min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(8) room temperature is placed：15min is placed to rolling plate room temperature after solution treatment；
(9) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 175 DEG C,
The Pre-aging treatment time is 15min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(10) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022
Aluminum alloy plate materials.
6022 aluminum alloy plate materials obtained in this comparative example are stretched and AEG-process, and to obtained in this comparative example
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 2
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 120mm, is contained
Composition and its mass percent be：Si：0.80%, Mg：0.70%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 410 DEG C, insulation are heated in wind furnace is circulated
10h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 3 roads along rectangle ingot width
It is secondary, 12 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 5mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.0mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 540 DEG C,
Soaking time is 11min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：20min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 180 DEG C,
The Pre-aging treatment time is 5min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 3
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 100mm, is contained
Composition and its mass percent be：Si：0.81%, Mg：0.70%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 423 DEG C, insulation are heated in wind furnace is circulated
8h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 3 roads along rectangle ingot width
It is secondary, 12 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 3mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 440 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.8mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 550 DEG C,
Soaking time is 10min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：8min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 160 DEG C,
The Pre-aging treatment time is 10min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 4
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 140mm, is contained
Composition and its mass percent be：Si：0.81%, Mg：0.70%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 431 DEG C, insulation are heated in wind furnace is circulated
8h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 13 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 4mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 420 DEG C are heated in wind furnace is circulated, after insulation 2h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.9mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 535 DEG C,
Soaking time is 15min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：10min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 140 DEG C,
The Pre-aging treatment time is 18min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 5
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 150mm, is contained
Composition and its mass percent be：Si：0.81%, Mg：0.70%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 445 DEG C, insulation are heated in wind furnace is circulated
7h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 5 roads along rectangle ingot width
It is secondary, 12 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 6mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 420 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.2mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 545 DEG C,
Soaking time is 12min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：5min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 170 DEG C,
The Pre-aging treatment time is 12min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 6
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 170mm, is contained
Composition and its mass percent be：Si：0.81%, Mg：0.70%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 453 DEG C, insulation are heated in wind furnace is circulated
6h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 15 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 3mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, after insulation 2h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.1mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 550 DEG C,
Soaking time is 12min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：25min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 190 DEG C,
The Pre-aging treatment time is 6min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 7
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 190mm, is contained
Composition and its mass percent be：Si：1.09%, Mg：0.62%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 460 DEG C, insulation are heated in wind furnace is circulated
6h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 3 roads along rectangle ingot width
It is secondary, roll direction then along rectangle ingot length and roll 16 passages, hot rolled plate is obtained, hot rolling plate thickness is 4mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 440 DEG C are heated in wind furnace is circulated, after insulation 2h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.8mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 535 DEG C,
Soaking time is 13min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：30min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 185 DEG C,
The Pre-aging treatment time is 8min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 8
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 180mm, is contained
Composition and its mass percent be：Si：1.09%, Mg：0.62%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 480 DEG C, insulation are heated in wind furnace is circulated
4h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 3 roads along rectangle ingot width
It is secondary, 16 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 6mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 435 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.2mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 545 DEG C,
Soaking time is 11min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：12min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 165 DEG C,
The Pre-aging treatment time is 20min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 9
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 160mm, is contained
Composition and its mass percent be：Si：1.09%, Mg：0.62%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 400 DEG C, insulation are heated in wind furnace is circulated
12h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 5 roads along rectangle ingot width
It is secondary, 12 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 4mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 425 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.1mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 550 DEG C,
Soaking time is 14min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：22min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 150 DEG C,
The Pre-aging treatment time is 15min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 10
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 90mm, is contained
Composition and its mass percent be：Si：1.09%, Mg：0.62%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 425 DEG C, insulation are heated in wind furnace is circulated
11h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 9 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 5mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 420 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.9mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 535 DEG C,
Soaking time is 14min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：18min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 145 DEG C,
The Pre-aging treatment time is 16min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 11
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 80mm, is contained
Composition and its mass percent be：Si：1.18%, Mg：0.45%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 440 DEG C, insulation are heated in wind furnace is circulated
9h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 3 roads along rectangle ingot width
It is secondary, 10 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 6mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 420 DEG C are heated in wind furnace is circulated, after insulation 2h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.8mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 540 DEG C,
Soaking time is 10min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：15min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 155 DEG C,
The Pre-aging treatment time is 20min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 12
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 110mm, is contained
Composition and its mass percent be：Si：1.18%, Mg：0.47%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 466 DEG C, insulation are heated in wind furnace is circulated
5h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 5 roads along rectangle ingot width
It is secondary, 10 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 3mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, after insulation 1.5h, stove is cold
To room temperature, obtain annealed state and roll plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.8mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 550 DEG C,
Soaking time is 11min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：5min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 155 DEG C,
The Pre-aging treatment time is 20min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 13
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 100mm, is contained
Composition and its mass percent be：Si：1.18%, Mg：0.47%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 470 DEG C, insulation are heated in wind furnace is circulated
6h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 11 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 3mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 440 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.8mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 550 DEG C,
Soaking time is 11min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：30min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 155 DEG C,
The Pre-aging treatment time is 20min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 14
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 120mm, is contained
Composition and its mass percent be：Si：1.18%, Mg：0.47%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 477 DEG C, insulation are heated in wind furnace is circulated
4h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 5 roads along rectangle ingot width
It is secondary, 10 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 5mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 440 DEG C are heated in wind furnace is circulated, after insulation 2h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.1mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 535 DEG C,
Soaking time is 14min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：5min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 155 DEG C,
The Pre-aging treatment time is 20min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 15
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 150mm, is contained
Composition and its mass percent be：Si：1.18%, Mg：0.47%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 420 DEG C, insulation are heated in wind furnace is circulated
8h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 3 roads along rectangle ingot width
It is secondary, 14 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 4mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, after insulation 2h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.2mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 540 DEG C,
Soaking time is 15min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：20min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 190 DEG C,
The Pre-aging treatment time is 5min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 16
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 180mm, is contained
Composition and its mass percent be：Si：1.50%, Mg：0.46%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 435 DEG C, insulation are heated in wind furnace is circulated
6h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 15 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 6mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 420 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.9mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 550 DEG C,
Soaking time is 13min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：20min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 170 DEG C,
The Pre-aging treatment time is 14min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 17
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 180mm, is contained
Composition and its mass percent be：Si：1.49%, Mg：0.46%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 450 DEG C, insulation are heated in wind furnace is circulated
10h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 5 roads along rectangle ingot width
It is secondary, 14 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 3mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 425 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.0mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 540 DEG C,
Soaking time is 12min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：25min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 140 DEG C,
The Pre-aging treatment time is 20min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 18
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 120mm, is contained
Composition and its mass percent be：Si：1.49%, Mg：0.46%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 480 DEG C, insulation are heated in wind furnace is circulated
6h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 3 roads along rectangle ingot width
It is secondary, 12 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 4mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 435 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.8mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 535 DEG C,
Soaking time is 15min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：12min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 165 DEG C,
The Pre-aging treatment time is 10min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 19
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 80mm, is contained
Composition and its mass percent be：Si：1.49%, Mg：0.46%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 402 DEG C, insulation are heated in wind furnace is circulated
11h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 9 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 5mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 425 DEG C are heated in wind furnace is circulated, after insulation 2h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 1.2mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 545 DEG C,
Soaking time is 10min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：25min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 175 DEG C,
The Pre-aging treatment time is 12min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 20
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 160mm, is contained
Composition and its mass percent be：Si：1.49%, Mg：0.46%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 418 DEG C, insulation are heated in wind furnace is circulated
10h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 3 roads along rectangle ingot width
It is secondary, 14 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 6mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 420 DEG C are heated in wind furnace is circulated, after insulation 2h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.9mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 540 DEG C,
Soaking time is 14min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：10min is put to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 185 DEG C,
The Pre-aging treatment time is 10min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 21
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 100mm, is contained
Composition and its mass percent be：Si：1.45%, Mg：0.68%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 433 DEG C, insulation are heated in wind furnace is circulated
8h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 5 roads along rectangle ingot width
It is secondary, 10 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 6mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 420 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.9mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 550 DEG C,
Soaking time is 10min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：15min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 145 DEG C,
The Pre-aging treatment time is 15min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
Embodiment 22
A kind of preparation method of 6022 aluminum alloy plate materials, comprises the following steps：
(1) prepared by ingot casting：6022 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness is 200mm, is contained
Composition and its mass percent be：Si：1.45%, Mg：0.68%, Cu≤0.11%, Mn≤0.10%, Fe≤0.20%,
Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤0.15%, balance of Al；
(2) heat：After 6022 aluminium alloy cast ingot crop milling faces are processed, 455 DEG C, insulation are heated in wind furnace is circulated
4h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, first roll 4 roads along rectangle ingot width
It is secondary, 17 passages are rolled then along rectangle ingot length direction, hot rolled plate is rolled to obtain, hot rolling plate thickness is 3mm；
(4) intermediate annealing：After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, after insulation 1h, stove is cooled to
Room temperature, obtains annealed state and rolls plate；
(5) it is cold rolling：Annealed state is rolled into plate, it is cold rolling to carry out 4 passages, cold-reduced sheet is obtained；Wherein, Cold Rolled Plate Thickness is 0.8mm；
(6) solution treatment：Solution treatment is carried out in salt bath furnace to cold-reduced sheet, the heating-up temperature of solution treatment is 540 DEG C,
Soaking time is 15min, and the type of cooling is water quenching to room temperature, and plate is rolled after forming solution treatment；
(7) room temperature is placed：20min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, pre-ageing treatment temperature is 160 DEG C,
The Pre-aging treatment time is 20min, and the type of cooling to be formed and roll plate after Pre-aging treatment to be air cooled to room temperature；
(9) room temperature is placed：Plate is rolled after by Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, prepared 6022 aluminium
Sheet alloy.
6022 aluminum alloy plate materials obtained in the present embodiment are stretched and AEG-process, and to obtained in the present embodiment
After 6022 aluminum alloy plate materials are through 2% predeformation, then carried out in drying baker 170 DEG C × 30min simulation baking vanish heat, with
After determine its intensity；Related performance indicators data are shown in Table 1.
6022 aluminum alloy plate materials prepared by embodiment 1~22 and comparative example 1 are supplied after state performance index and paint baking
Performance indications be shown in Table 1：
The embodiment of table 1 prepares the performance after 6022 aluminum alloy plate materials supply of material state performance index and paint baking with comparative example
Index
From table 1, through be respectively provided with the 6022 aluminum alloy plate materials supply of material states that the inventive method is prepared it is good into
Shape performance, it shows obvious baking hardenability after simulating baking vanish, and 6022 aluminium conventionally produced with comparative example 1 are closed
Performance indications after golden plate material punching performance index and baking vanish are roughly the same or even slightly improve, and this fully embodies this hair
Bright value.
Claims (5)
1. a kind of preparation method of 6022 aluminum alloy plate materials, it is characterised in that comprise the following steps：
(1) prepared by ingot casting：Prepare 6022 aluminium alloy cast ingots；
(2) heat：By 6022 aluminium alloy cast ingots, 400~480 DEG C are heated to, are incubated 4~12h；
(3) hot rolling：To 6022 aluminium alloy cast ingots after insulation, hot rolling is carried out, hot rolled plate is obtained；Wherein, hot rolling plate thickness be 3~
6mm；
(4) intermediate annealing：Hot rolled plate is heated to 420~440 DEG C, after 1~2h of insulation, stove is cooled to room temperature, is rolled after acquisition stove is cold
Plate；
(5) it is cold rolling：By stove it is cold after roll plate, carry out it is cold rolling, be obtained cold-reduced sheet；Wherein, Cold Rolled Plate Thickness is 0.8~1.2mm；
(6) solution treatment：Solution treatment is carried out to cold-reduced sheet, plate is rolled after forming solution treatment；Wherein, the heating temperature of solution treatment
It is 535~550 DEG C to spend, and soaking time is 10~15min, and the type of cooling is water quenching to room temperature；
(7) room temperature is placed：5~30min is placed to rolling plate room temperature after solution treatment；
(8) Pre-aging treatment：Plate is rolled after being placed to room temperature, Pre-aging treatment is carried out, plate is rolled after forming Pre-aging treatment；Wherein,
Pre-ageing treatment temperature is 140~190 DEG C, and the Pre-aging treatment time is 5~20min, and the type of cooling is to be air cooled to room temperature；
(9) room temperature is placed：To rolling plate after Pre-aging treatment, carry out room temperature and place more than 4 weeks, as T4P states, prepared 6022 aluminium conjunction
Golden plate material.
2. the preparation method of 6022 aluminum alloy plate materials according to claim 1, it is characterised in that in described step (1),
The composition and its mass percent that 6022 aluminium alloy cast ingots contain be：Si：0.80~1.50%, Mg：0.45~0.70%, Cu≤
0.11%, Mn≤0.10%, Fe≤0.20%, Zn≤0.25%, Cr≤0.10%, Ti≤0.15%, impurity element≤
0.15%, balance of Al.
3. the preparation method of 6022 aluminum alloy plate materials according to claim 1, it is characterised in that in described step (1),
6022 aluminium alloy cast ingots are obtained using direct water-cooling semi-continuous casting.
4. the preparation method of 6022 aluminum alloy plate materials according to claim 1, it is characterised in that in described step (2),
Before the heating of 6022 aluminium alloy cast ingots, processed by crop milling face.
5. the preparation method of 6022 aluminum alloy plate materials according to claim 1, it is characterised in that in described step (3),
Hot rolling mode is that cross rolling is combined with longitudinally rolling.
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| CN110952052A (en) * | 2020-01-02 | 2020-04-03 | 北京科技大学 | Method for improving anisotropy of aluminum alloy plate for automobile body |
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