CN106756284B - A kind of preparation method of 6111 aluminum alloy plate materials - Google Patents

A kind of preparation method of 6111 aluminum alloy plate materials Download PDF

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CN106756284B
CN106756284B CN201611006515.8A CN201611006515A CN106756284B CN 106756284 B CN106756284 B CN 106756284B CN 201611006515 A CN201611006515 A CN 201611006515A CN 106756284 B CN106756284 B CN 106756284B
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plate
room temperature
cold
aluminum alloy
rolled
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CN106756284A (en
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田妮
张泽宇
王光东
许圆
贾存发
赵刚
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东北大学
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08Alloys based on aluminium with magnesium as the next major constituent with silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/12Alloys based on aluminium with copper as the next major constituent
    • C22C21/14Alloys based on aluminium with copper as the next major constituent with silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/12Alloys based on aluminium with copper as the next major constituent
    • C22C21/16Alloys based on aluminium with copper as the next major constituent with magnesium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/12Alloys based on aluminium with copper as the next major constituent
    • C22C21/18Alloys based on aluminium with copper as the next major constituent with zinc
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/043Changing 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
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047Changing 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
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/057Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent

Abstract

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:Prepare 6111 aluminium alloy cast ingots;330~430 DEG C are heated to, 440~480 DEG C is warming up to after insulation again, is incubated again, hot rolling obtains hot rolled plate;Hot rolled plate is heated to 420~440 DEG C, room temperature is furnace-cooled to after insulation, cold rolling obtains cold-reduced sheet;Placed again through solution treatment, room temperature, Pre-aging treatment, and room temperature placement, as T4P states again, 6111 aluminum alloy plate materials are made.Ingot casting conventional high temperature Homogenization Treatments are the method reduce, shorten technological process, save the energy, production efficiency is improved, cost is greatly lowered;And it can implement on existing aluminium alloy production line, it is not necessary to increase equipment and technology investment, it is simple to operate;Be made in 6111 aluminum alloy plate materials superfluous crystalline phase particle size is tiny, Dispersed precipitate, beneficial to 6111 aluminium sheet punching performances are improved, realize the performance requirement in reducing cost while fully meeting punching production.

Description

A kind of preparation method of 6111 aluminum alloy plate materials

Technical field

The invention belongs to technical field of aluminum alloy technology, and in particular to a kind of preparation method of 6111 aluminum alloy plate materials.

Background technology

Heat-treatable strengthened 6xxx aluminum alloy plate materials are due to high specific strength, good formability and baking hardening The features such as ability, easily recovery against corrosion, has become the lightweight automotive car body panel material of first choice.Wherein, because 6111 aluminium alloys have Good deep drawability, and the intensity after paint baking more than 320MPa, greatly improves the white body gone out by its punching again The dent resistance energy of automobile component, 6111 aluminium alloys are the main flows of north America region car body of aluminum alloy plate material.At present, vapour is caused The slow key issue of car vehicle body calorize process is due to that car body of aluminum alloy plate material cost is higher than traditional car body panel material-steel Plate.Short streamline production technology can reduce investment outlay, shorten the construction period, floor space is small, the high and low cost of production efficiency, low energy consumption, Many advantages, such as low in the pollution of the environment, good product quality, the great attention of various countries researcher is enjoyed in recent years.However, traditional vapour Car vehicle body generally all first uses semi-continuous casting (Direct Chill Casting, DC with the processing of 6xxx line aluminium alloy sheet materials Casting) method prepares alloy cast ingot, homogenizing cast ingot is then carried out to eliminate dendritic segregation and control disperse phase particle Separate out.Typically above 545 DEG C of 6xxx line aluminium alloy cast ingot Homogenization Treatments temperature, soaking time is more than 12h, not only much time Can, the serious production efficiency that reduces significantly improves production cost, it is notable that Homogenization Treatments can make mainly to contain in alloy AlFeMnSi superfluous crystalline phase nodularization, it is roughened and is distributed along dendrite border, it is possible to the formability of follow-up sheet material can be reduced. Therefore, body of a motor car is developed with the short streamline production technology of 6111 aluminum alloy plate materials to shorten production streamline, is saved the energy, is reduced aluminium Alloy car body panel production cost, and ensure research work of its sheet material with good mechanical property with stronger innovation simultaneously Property and very strong actual application value.

The content of the invention

It is an object of the invention to provide a kind of preparation method of 6111 aluminum alloy plate materials, the preparation method are uniform without high temperature Change and handle direct hot rolling, can meet body of a motor car deep drawability and baking after cold rolling again of then annealing, solid solution Pre-aging treatment Hardening capacity requirement, this method can shorten production procedure, save the energy, production cost is greatly lowered.

To achieve the above object, the present invention uses following technical scheme:

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:Prepare 6111 aluminium alloy cast ingots;

(2) heat:By 6111 aluminium alloy cast ingots, 330 ~ 430 DEG C are heated to, is incubated 3 ~ 7h, then is warming up to 440 ~ 480 DEG C, It is incubated 2h ~ 4h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, hot rolled plate is made;Wherein, hot rolling plate thickness is 3 ~6mm;

(4) intermediate annealing:By hot rolled plate at 420 ~ 440 DEG C, after being incubated 1 ~ 2h, room temperature is cooled to, annealed state is obtained and rolls plate;

(5) cold rolling:Annealed state is rolled into plate, carries out cold rolling, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness is 0.8 ~ 1.2mm;

(6) solution treatment:Solution treatment is carried out to cold-reduced sheet, rolls plate 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, carries out Pre-aging treatment, rolls plate after forming Pre-aging treatment;Its In, pre-ageing treatment temperature is 160 ~ 190 DEG C, and the Pre-aging treatment time is 5 ~ 10min, 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, be made 6111 Aluminum alloy plate materials.

In described step (1), composition and its mass percent that 6111 aluminium alloy cast ingot compositions contain are:Si:0.70~ 1.10%, Mg:0.50 ~ 1.00%, Cu:0.50 ~ 0.90%, Mn:0.15 ~ 0.45%, Fe≤0.40%, Zn≤0.15%, Cr≤ 0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al.

In described step (1), 6111 aluminium alloy cast ingots use direct water-cooling semi-continuous casting (Direct Chill Semi-continuous Casting, abbreviation DC are cast) it is made.

In described step (2), 6111 aluminium alloy cast ingots, by the processing of crop milling face before heating.

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, saves the energy, carries High efficiency, considerably reduce the production cost of 6111 aluminum alloy plate materials.

(2) present invention process can be implemented on existing aluminium alloy production line, without changing existing frock, it is not necessary to which increase is set Standby and technology investment, it is simple to operate feasible.

(3) the superfluous crystalline phase particle size prepared by the inventive method in 6111 aluminum alloy plate materials of processing is tiny, more Distribution is dissipated, is advantageous to improve the punching performance of 6111 aluminum alloy plate materials, realizes and fully meet punching press while cost is reduced The requirement of production performance, the economic results in society brought therefrom are considerable.

Brief description of the drawings:

Fig. 1 is that the optical microstructure of 6111 aluminum alloy plate materials made from the embodiment of the present invention 1 schemes;

Fig. 2 is that the optical microstructure of 6111 aluminum alloy plate materials made from comparative example 1 of the present invention schemes.

Embodiment:

With reference to embodiment, the present invention is described in further detail.

Embodiment 1

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 100mm, contained Composition and its mass percent be:Si:1.08%, Mg:0.66%, Cu:0.81%, Mn:0.26%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 415 DEG C are heated in wind furnace is circulated, is incubated 3h Afterwards, 460 DEG C are again heated to, is incubated 2h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 5 along rectangle ingot width It is secondary, 8 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 3.5mm;

(4) intermediate annealing:After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, it is cold with stove after being incubated 2h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 170 DEG C, The Pre-aging treatment time is 9min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Comparative example 1

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 100mm, contained Composition and its mass percent be:Si:1.08%, Mg:0.66%, Cu:0.81%, Mn:0.26%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) 6111 aluminium alloy cast ingots are fitted into circulation wind furnace, after being warming up to 550 DEG C of insulation 24h with stove, come out of the stove and be air-cooled to Room temperature;

(3) heat:After the 6111 aluminium alloy cast ingot crop milling faces processing after cooling, 440 DEG C are heated to, is incubated 3h;

(4) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 5 along rectangle ingot width It is secondary, 8 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 3.5mm;

(5) intermediate annealing:After hot rolled plate is cut into scale, 430 DEG C are heated in wind furnace is circulated, it is cold with stove after being incubated 2h But to room temperature, obtain annealed state and roll plate;

(6) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 0.8mm;

(7) 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, rolls plate after forming solution treatment;

(8) room temperature is placed:20min is placed to rolling plate room temperature after solution treatment;

(9) Pre-aging treatment:Plate is rolled after being placed to room temperature, carries out Pre-aging treatment, pre-ageing treatment temperature is 170 DEG C, The Pre-aging treatment time is 9min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(10) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, is made 6111 Aluminum alloy plate materials.

6111 aluminum alloy plate materials made from this comparative example are stretched and AEG-process, and to made from this comparative example 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 2

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 80mm, contained Composition and its mass percent be:Si:0.70%, Mg:1.00%, Cu:0.52%, Mn:0.45%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 350 DEG C are heated in wind furnace is circulated, is incubated 6h Afterwards, 480 DEG C are again heated to, is incubated 2h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 10 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 2h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 15min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 160 DEG C, The Pre-aging treatment time is 10min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 3

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 100mm, contained Composition and its mass percent be:Si:0.73%, Mg:0.98%, Cu:0.50%, Mn:0.45%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 400 DEG C are heated in wind furnace is circulated, is incubated 4h Afterwards, 465 DEG C are again heated to, is incubated 3h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 5 along rectangle ingot width It is secondary, 10 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 190 DEG C, The Pre-aging treatment time is 5min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 4

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 120mm, contained Composition and its mass percent be:Si:0.73%, Mg:0.98%, Cu:0.52%, Mn:0.45%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 380 DEG C are heated in wind furnace is circulated, is incubated 5h Afterwards, 440 DEG C are again heated to, is incubated 4h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 14 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 180 DEG C, The Pre-aging treatment time is 8min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 5

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 140mm, contained Composition and its mass percent be:Si:0.73%, Mg:0.98%, Cu:0.52%, Mn:0.45%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 330 DEG C are heated in wind furnace is circulated, is incubated 7h Afterwards, 470 DEG C are again heated to, is incubated 2h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 14 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 3mm;

(4) intermediate annealing:After hot rolled plate is cut into scale, 420 DEG C are heated in wind furnace is circulated, it is cold with stove after being incubated 2h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 545 DEG C, Soaking time is 11min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 170 DEG C, The Pre-aging treatment time is 8min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 6

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 150mm, contained Composition and its mass percent be:Si:0.73%, Mg:0.98%, Cu:0.52%, Mn:0.45%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 430 DEG C are heated in wind furnace is circulated, is incubated 3h Afterwards, 455 DEG C are again heated to, is incubated 3h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 5 along rectangle ingot width It is secondary, 12 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 5mm;

(4) intermediate annealing:After hot rolled plate is cut into scale, 435 DEG C are heated in wind furnace is circulated, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 165 DEG C, The Pre-aging treatment time is 9min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 7

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 160mm, contained Composition and its mass percent be:Si:1.00%, Mg:0.81%, Cu:0.69%, Mn:0.31%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 420 DEG C are heated in wind furnace is circulated, insulation 4.5h after, 480 DEG C are again heated to, is incubated 3h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 5 along rectangle ingot width It is secondary, 10 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 13min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 180 DEG C, The Pre-aging treatment time is 6min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 8

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 180mm, contained Composition and its mass percent be:Si:Si:0.97%, Mg:0.81%, Cu:0.69%, Mn:0.31%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 395 DEG C are heated in wind furnace is circulated, is incubated 5h Afterwards, 450 DEG C are again heated to, is incubated 3h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 5 along rectangle ingot width It is secondary, 14 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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 being incubated 1.5h, with stove Room temperature is cooled to, annealed state is obtained and rolls plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 11min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 165 DEG C, The Pre-aging treatment time is 10min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 9

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 200mm, contained Composition and its mass percent be:Si:0.97%, Mg:0.81%, Cu:0.69%, Mn:0.31%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 340 DEG C are heated in wind furnace is circulated, is incubated 6h Afterwards, 460 DEG C are again heated to, is incubated 4h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 4 along rectangle ingot width It is secondary, 17 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 13min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 190 DEG C, The Pre-aging treatment time is 7min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 10

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 90mm, contained Composition and its mass percent be:Si:0.97%, Mg:0.81%, Cu:0.69%, Mn:0.31%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 365 DEG C are heated in wind furnace is circulated, is incubated 5h Afterwards, 440 DEG C are again heated to, is incubated 3.5h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 4 along rectangle ingot width It is secondary, 9 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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 being incubated 1.5h, with stove Room temperature is cooled to, annealed state is obtained and rolls plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 535 DEG C, Soaking time is 14min, and the type of cooling is water quenching to room temperature, rolls plate after forming solution treatment;

(7) room temperature is placed:7min is placed to rolling plate room temperature after solution treatment;

(8) Pre-aging treatment:Plate is rolled after being placed to room temperature, carries out Pre-aging treatment, pre-ageing treatment temperature is 180 DEG C, The Pre-aging treatment time is 7min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 11

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 110mm, contained Composition and its mass percent be:Si:0.97%, Mg:0.81%, Cu:0.69%, Mn:0.31%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 415 DEG C are heated in wind furnace is circulated, is incubated 4h Afterwards, 475 DEG C are again heated to, is incubated 2h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 4 along rectangle ingot width It is secondary, 9 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 2h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 545 DEG C, Soaking time is 13min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 190 DEG C, The Pre-aging treatment time is 10min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 12

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 130mm, contained Composition and its mass percent be:Si:1.06%, Mg:0.50%, Cu:0.52%, Mn:0.44%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 350 DEG C are heated in wind furnace is circulated, insulation After 5.5h, 445 DEG C are again heated to, is incubated 4h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 5 along rectangle ingot width It is secondary, 10 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 12min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 175 DEG C, The Pre-aging treatment time is 6min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 13

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 150mm, contained Composition and its mass percent be:Si:1.06%, Mg:0.57%, Cu:0.52%, Mn:0.44%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 335 DEG C are heated in wind furnace is circulated, is incubated 7h Afterwards, 475 DEG C are again heated to, is incubated 2h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 14 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 2h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 10min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 165 DEG C, The Pre-aging treatment time is 7min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Implement 14

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 170mm, contained Composition and its mass percent be:Si:1.06%, Mg:0.57%, Cu:0.52%, Mn:0.44%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 330 DEG C are heated in wind furnace is circulated, insulation After 6.5h, 455 DEG C are again heated to, is incubated 3h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 4 along rectangle ingot width It is secondary, 15 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 6mm;

(4) intermediate annealing:After hot rolled plate is cut into scale, 425 DEG C are heated in wind furnace is circulated, after being incubated 1.5h, with stove Room temperature is cooled to, annealed state is obtained and rolls plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 540 DEG C, Soaking time is 15min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 175 DEG C, The Pre-aging treatment time is 9min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 15

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 190mm, contained Composition and its mass percent be:Si:Si:1.06%, Mg:0.57%, Cu:0.52%, Mn:0.44%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 410 DEG C are heated in wind furnace is circulated, is incubated 4h Afterwards, 450 DEG C are again heated to, is incubated 3.5h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 18 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 545 DEG C, Soaking time is 12min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 180 DEG C, The Pre-aging treatment time is 6min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 16

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 120mm, contained Composition and its mass percent be:Si:1.09%, Mg:0.53%, Cu:0.88%, Mn:0.15%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 360 DEG C are heated in wind furnace is circulated, is incubated 6h Afterwards, 440 DEG C are again heated to, is incubated 3h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 12 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 545 DEG C, Soaking time is 10min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 190 DEG C, The Pre-aging treatment time is 5min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 17

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 140mm, contained Composition and its mass percent be:Si:1.09%, Mg:0.53%, Cu:0.90%, Mn:0.17%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 426 DEG C are heated in wind furnace is circulated, is incubated 3h Afterwards, 470 DEG C are again heated to, is incubated 2h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 14 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 4mm;

(4) intermediate annealing:After hot rolled plate is cut into scale, 400 DEG C are heated in wind furnace is circulated, after being incubated 1.5h, with stove Room temperature is cooled to, annealed state is obtained and rolls plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 10min, and the type of cooling is water quenching to room temperature, rolls plate after forming solution treatment;

(7) room temperature is placed:9min is placed to rolling plate room temperature after solution treatment;

(8) Pre-aging treatment:Plate is rolled after being placed to room temperature, carries out Pre-aging treatment, pre-ageing treatment temperature is 185 DEG C, The Pre-aging treatment time is 6min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 18

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 150mm, contained Composition and its mass percent be:Si:1.09%, Mg:0.53%, Cu:0.88%, Mn:0.17%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 370 DEG C are heated in wind furnace is circulated, is incubated 5h Afterwards, 460 DEG C are again heated to, is incubated 3h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 4 along rectangle ingot width It is secondary, 13 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 4.5mm;

(4) intermediate annealing:After hot rolled plate is cut into scale, 425 DEG C are heated in wind furnace is circulated, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 14min, and the type of cooling is water quenching to room temperature, rolls plate 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, carries out Pre-aging treatment, pre-ageing treatment temperature is 185 DEG C, The Pre-aging treatment time is 8min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 19

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 170mm, contained Composition and its mass percent be:Si:1.09%, Mg:0.53%, Cu:0.88%, Mn:0.17%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 410 DEG C are heated in wind furnace is circulated, is incubated 4h Afterwards, 480 DEG C are again heated to, is incubated 2h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 16 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, 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 being incubated 1.5h, with stove Room temperature is cooled to, annealed state is obtained and rolls plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 13min, and the type of cooling is water quenching to room temperature, rolls plate after forming solution treatment;

(7) room temperature is placed:13min is placed to rolling plate room temperature after solution treatment;

(8) Pre-aging treatment:Plate is rolled after being placed to room temperature, carries out Pre-aging treatment, pre-ageing treatment temperature is 170 DEG C, The Pre-aging treatment time is 10min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 20

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 200mm, contained Composition and its mass percent be:Si:1.09%, Mg:0.53%, Cu:0.88%, Mn:0.17%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 400 DEG C are heated in wind furnace is circulated, is incubated 7h Afterwards, 450 DEG C are again heated to, is incubated 3h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 3 along rectangle ingot width It is secondary, 20 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 3.5mm;

(4) intermediate annealing:After hot rolled plate is cut into scale, 425 DEG C are heated in wind furnace is circulated, it is cold with stove after being incubated 1h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 550 DEG C, Soaking time is 10min, and the type of cooling is water quenching to room temperature, rolls plate after forming solution treatment;

(7) room temperature is placed:25min is put to rolling plate room temperature after solution treatment;

(8) Pre-aging treatment:Plate is rolled after being placed to room temperature, carries out Pre-aging treatment, pre-ageing treatment temperature is 170 DEG C, The Pre-aging treatment time is 8min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

Embodiment 21

A kind of preparation method of 6111 aluminum alloy plate materials, comprises the following steps:

(1) prepared by ingot casting:6111 aluminium alloy cast ingots are prepared using direct water-cooling semi-continuous casting, thickness 80mm, contained Composition and its mass percent be:Si:1.09%, Mg:0.53%, Cu:0.88%, Mn:0.17%, Fe≤0.40%, Zn≤ 0.15%, Cr≤0.10%, Ti≤0.10%, impurity element≤0.15%, surplus Al;

(2) heat:After 6111 aluminium alloy cast ingot crop milling faces are handled, 365 DEG C are heated in wind furnace is circulated, insulation After 6.5h, 475 DEG C are again heated to, is incubated 2h;

(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, first rolls 5 along rectangle ingot width It is secondary, 8 passages are rolled then along rectangle ingot length direction, roll to obtain hot rolled plate;Wherein, hot rolling plate thickness is 3.5mm;

(4) intermediate annealing:After hot rolled plate is cut into scale, 425 DEG C are heated in wind furnace is circulated, it is cold with stove after being incubated 2h But to room temperature, obtain annealed state and roll plate;

(5) cold rolling:Annealed state is rolled into plate, carries out 4 passage cold rollings, cold-reduced sheet is made;Wherein, Cold Rolled Plate Thickness 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 12min, and the type of cooling is water quenching to room temperature, rolls plate after forming solution treatment;

(7) room temperature is placed:21min is placed to rolling plate room temperature after solution treatment;

(8) Pre-aging treatment:Plate is rolled after being placed to room temperature, carries out Pre-aging treatment, pre-ageing treatment temperature is 165 DEG C, The Pre-aging treatment time is 10min, and the type of cooling forms after Pre-aging treatment to be air-cooled to room temperature and rolls plate;

(9) room temperature is placed:By the plate that rolls after Pre-aging treatment, room temperature places more than 4 weeks, as T4P states, and 6111 aluminium are made Sheet alloy.

6111 aluminum alloy plate materials made from the present embodiment are stretched and AEG-process, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then 170 DEG C × 30min of progress simulation baking vanish heats in drying baker, with After determine its intensity;Related performance indicators data are shown in Table 1.

After 6111 aluminum alloy plate materials supply of material state performance index and paint baking prepared by embodiment 1 ~ 21 and comparative example 1 Performance indications are shown in Table 1:

The embodiment of table 1 and comparative example prepare the property after 6111 aluminum alloy plate materials supply of material state performance index and paint baking Can index

From table 1, forming property and contrast under the 6111 aluminum alloy plate materials supply of material states prepared through inventive method Performance indications after the punching performance index and baking vanish of 6111 conventionally produced aluminum alloy plate materials of example 1 it is roughly the same even Slightly improve, this fully embodies the value of the present invention.

Claims (5)

1. a kind of preparation method of 6111 aluminum alloy plate materials, it is characterised in that comprise the following steps:
(1) prepared by ingot casting:Prepare 6111 aluminium alloy cast ingots;
(2) heat:By 6111 aluminium alloy cast ingots, 330~430 DEG C are heated to, is incubated 3~7h, then is warming up to 440~480 DEG C, is protected Warm 2h~4h;
(3) hot rolling:To 6111 aluminium alloy cast ingots after insulation, hot rolling is carried out, hot rolled plate is made;Wherein, hot rolling plate thickness be 3~ 6mm;
(4) intermediate annealing:By hot rolled plate at 420~440 DEG C, after being incubated 1~2h, room temperature is furnace-cooled to, rolls plate after acquisition stove is cold;
(5) cold rolling:By stove it is cold after roll plate, carry out cold rolling, cold-reduced sheet be made;Wherein, Cold Rolled Plate Thickness is 0.8~1.2mm;
(6) solution treatment:Solution treatment is carried out to cold-reduced sheet, rolls plate after forming solution treatment;Wherein, the heating temperature of solution treatment Spend for 535~550 DEG C, 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, carries out Pre-aging treatment, rolls plate after forming Pre-aging treatment;Wherein, Pre-ageing treatment temperature is 160~190 DEG C, and the Pre-aging treatment time is 5~10min, 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, 6111 aluminium are made and close Golden plate material.
2. the preparation method of 6111 aluminum alloy plate materials according to claim 1, it is characterised in that in described step (1), The composition and its mass percent that 6111 aluminium alloy cast ingots contain be:Si:0.70~1.10%, Mg:0.50~1.00%, Cu: 0.50~0.90%, Mn:0.15~0.45%, Fe≤0.40%, Zn≤0.15%, Cr≤0.10%, Ti≤0.10%, impurity Element≤0.15%, surplus Al.
3. the preparation method of 6111 aluminum alloy plate materials according to claim 1, it is characterised in that in described step (1), 6111 aluminium alloy cast ingots are made using direct water-cooling semi-continuous casting.
4. the preparation method of 6111 aluminum alloy plate materials according to claim 1, it is characterised in that in described step (2), Before the heating of 6111 aluminium alloy cast ingots, handled by crop milling face.
5. the preparation method of 6111 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.
CN201611006515.8A 2016-11-16 2016-11-16 A kind of preparation method of 6111 aluminum alloy plate materials CN106756284B (en)

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