CN108251712A - A kind of preparation method of 6111 aluminum alloy plate materials of body of a motor car - Google Patents

A kind of preparation method of 6111 aluminum alloy plate materials of body of a motor car Download PDF

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Publication number
CN108251712A
CN108251712A CN201810182837.0A CN201810182837A CN108251712A CN 108251712 A CN108251712 A CN 108251712A CN 201810182837 A CN201810182837 A CN 201810182837A CN 108251712 A CN108251712 A CN 108251712A
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room temperature
aluminum alloy
temperature
cold
plank
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田妮
赵紫研
王光东
王河
刘启隆
赵刚
左良
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Northeastern University China
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Northeastern University China
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
    • 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
    • C22F1/05—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 of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)

Abstract

A kind of body of a motor car preparation method of 6111 aluminum alloy plate materials, includes the following steps：(1) DC casting methods prepare 6111 aluminium alloy cast ingots；(2) ingot casting is heated to 200~400 DEG C of 2~6h of heat preservation；It is warming up to 460~500 DEG C of 2~4h of heat preservation, hot rolling of coming out of the stove；(3) hot rolled plate is heated to 480~550 DEG C of 2~6h of heat preservation, furnace cooling；(4) cold rolling；(5) solution treatment is carried out to cold-reduced sheet；(6) it is placed at room temperature for 5~15min；(7) Pre-aging treatment is carried out；(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 4 weeks or more.The present invention method can not only shorten 6111 car body of aluminum alloy plate production procedures, it is energy saving, the production cost of 6111 car body of aluminum alloy plates is greatly lowered, and the press formability of 6111 car body of aluminum alloy plates and baking vanish hardenability can be significantly improved.

Description

A kind of preparation method of 6111 aluminum alloy plate materials of body of a motor car
Technical field：
The invention belongs to Aluminum alloy for automotive body board technology fields, and in particular to a kind of body of a motor car is closed with 6111 aluminium The preparation method of golden plate material.
Background technology：
Automobile brings facility, but the output with automobile and guarantor as the main vehicles to the life of the mankind The amount of having sharply increases, and energy consumption is excessive and disposal of pollutants problem is increasingly severe.For this problem, best solution It is automotive light weight technology.Mainly there are two directions for automotive light weight technology development：First, using light material；Second is that optimization structure.It adopts Feasible mode is presently the most with light material.Wherein Automobile Plate contribution light-weighted to vehicle is maximum, is light-weight design Key.Automobile Plate lighting material first choice is 6xxx line aluminium alloys.
Currently using and the 6xxx owner of exploitation to have several aluminium alloys such as 6016,6022 and 6111, and in North America, The outer vehicle body very thin thickness of its automobile is even less than 1mm, therefore focuses on very much intensity, because vehicle body in addition is mainly with preferable 6111 aluminium of intensity Alloy；This alloy is respectively provided with excellent yield behavior after T4P is handled and after baking, greatly improves the anti-of the outer vehicle body of automobile Be recessed performance, and current 6111 aluminum alloy plate materials have been applied to the positions such as the outer vehicle body of automobile；However, prepared using traditional handicraft Vehicle body is significantly larger than conventional automobile bodies steel plate with the production cost of 6111 aluminum alloy plate materials, and its deep drawability is compared with mild steel Plate also has certain gap, this is the bottleneck problem that 6111 aluminium sheets is hindered to substitute steel plate on a large scale；Therefore, how further to improve The deep drawability of 6111 aluminum alloy plate materials, while it is imperative to significantly reduce car body of aluminum alloy sheet fabrication cost.
Invention content：
Present invention aims at a kind of preparation method of 6111 aluminum alloy plate materials of body of a motor car is provided, in traditional processing side Homogenization Treatments technique is omitted on the basis of method, improves intermediate annealing system, through cold rolling, solid solution water quenching, Pre-aging treatment, production after The deep drawability and baking and hardening performance of product are superior to the plank of traditional handicraft preparation, reduce being produced into while energy saving This.
The method of the present invention includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting method；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 200~400 DEG C are heated to, keeps the temperature 2~6h；Then heating To 460~500 DEG C, hot rolling of coming out of the stove after 2~4h of heat preservation obtains hot rolled plate；
(3) intermediate annealing：Hot rolled plate is heated to 480~550 DEG C, 2~6h is kept the temperature, cools to room temperature with the furnace, moved back Fiery state rolls plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein solid solution temperature 535~550 DEG C, 10~20min of time, the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：Cold-reduced sheet after solution treatment is being placed at room temperature for 5~15min；
(7) Pre-aging treatment：Pre-aging treatment is carried out to the plank after being placed at room temperature for, rolls plate after forming Pre-aging treatment； Wherein pre-ageing treatment temperature is 160~190 DEG C, and the time is 5~15min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 4 weeks or more, i.e. T4P states, automobile is made 6111 aluminum alloy plate materials of vehicle body.
In the step (1), 6111 aluminium alloy cast ingot ingredients contain Si by mass percentage：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.
6111 above-mentioned aluminium alloy cast ingot thickness 180mm, hot rolling 4~7mm of plate thickness, 0.9~1.2mm of Cold Rolled Plate Thickness.
In the step (1), 6111 aluminium alloy cast ingots are made using direct water-cooling semi-continuous casting (DC castings).
In the step (2), 6111 aluminium alloy cast ingots before heating, through cropping milling surface treatment.
Above-mentioned body of a motor car is with the performance indicator of 6111 aluminum alloy plate materials：σ0.2=160.0~173.8MPa, σb= 291.3~320.9MPa, r15=0.65~0.76, n (strain hardening exponent)=0.26~0.31, δ=25.3~27.5%, IE =7.81~8.15mm.
Above-mentioned body of a motor car is with the performance indicator after the paint baking of 6111 aluminum alloy plate materials：σ0.2=263.8~ 278.8MPa, σb=358.6~375.7MPa, δ=12.3~14.6%.
Above-mentioned hot rolling mode is combined for cross rolling with longitudinally rolling, and course of hot rolling is first along rectangle ingot width direction 3~5 passages are rolled, 8~15 passages is rolled then along rectangle ingot length direction, obtains hot rolled plate.
Body of a motor car is usually with 6111 aluminum alloy plate materials conventional preparation techniques：Semi-continuous casting ingot casting → homogenization (540 DEG C/for 24 hours) → hot rolling → intermediate annealing → cold rolling → solution treatment/preageing → supply of material parks, homogenization temperature is generally above 540 DEG C, soaking time is more than for 24 hours, not only to take cost, but also seriously reduce production efficiency and improve production cost, is hindered The process of automobile calorize is hindered；It is worth noting that, Homogenization Treatments can make the mainly superfluous crystallization containing AlFeMnSi in alloy Phase nodularization, roughening are simultaneously distributed along dendrite boundary, it is possible to can reduce the forming property of follow-up plank；If using no homogenization Handle direct hot rolling, crystalline phase is broken under big deformation condition and tiny, disperse be distributed in matrix；It is intermediate by improving Annealing process so that solvable phased soln, broken crystalline phase nodularization are conducive to improve the plasticity and forming property of plank；Therefore Cost, energy saving, shortening production can be significantly reduced by changing the technique of intermediate annealing using the direct hot rolling of no Homogenization Treatments Period, while the research work for optimizing sheet material forming performance has stronger innovative and very strong scientific meaning and practical application Value；The study found that by slab of 6111 aluminium alloy cast ingot of semi-continuous casting without the direct hot rolling of uniform treatment, then through 420 DEG C of left sides The conventional intermediate annealing process on the right side, the plank that then cold rolling, solid solution, Pre-aging treatment are prepared again have good baking hardening Property but formability is still not fully up to expectations；Deep study and analysis is found, although can obtain superfluous knot without the direct hot rolling of uniform treatment 6111 aluminium sheets of crystalline phase particle fine uniform Dispersed precipitate, but since intermediate anneal temperature is relatively low, annealing soaking time is shorter, Solvable phase is caused to be difficult in follow-up conventional solid solution processing procedure during complete back dissolving enters matrix, more important is insoluble superfluous knots Crystalline phase particle still has obvious wedge angle after the processing of conventional intermediate annealing process, fails to apparent nodularization, this is to cause The key for failing to obtain excellent deep drawability without 6111 car body of aluminum alloy plates prepared by Homogenization Treatments technique used at present is asked Topic；The long-term unremitting effort innovation experiment of seminar, continuous analysis and summary experimental result update experimental program, and the present invention proposes prominent Broken conventional intermediate anneal temperature combines the inventive concept that annealing soaking time is appropriately extended, and develops novel low-cost and prepares height 6111 aluminium sheet fabricating technologies of deep drawing quality and high baking hardenability.
The method of the present invention omits Homogenization Treatments technique, and improve intermediate annealing system on the basis of traditional diamond-making technique Degree；Alloy cast ingot by Homogenization Treatments, is not directly over low-temperature short-time pretreatment to regulate and control the analysis containing Mn, Cr disperse phase particle Go out, then carry out hot rolling, crystalline phase is distributed in the base to small and dispersed by after grating；In conventional intermediate annealing process (420- 440 DEG C, 1-2h) on the basis of further improve intermediate anneal temperature intermediate annealing soaking time be appropriately extended simultaneously, make solvable The dissolving of crystalline phase is more abundant, and nodularization occurs for the crystalline phase of tiny fragmentation, can improve the stamping of 6111 aluminum alloy plate materials Property；The 6111 vehicle body plate deep drawabilities and baking and hardening performance prepared after through cold rolling, solid solution water quenching, Pre-aging treatment are equal The plank prepared better than traditional handicraft；This method can shorten the production procedure, energy saving, significantly of 6111 aluminum alloy plate materials Production cost is reduced, and the press formability of sheet alloy can be significantly improved.
Compared with prior art, the advantage of the invention is that：Plank is prepared using no Homogenization Treatments, it is energy saving, it carries High efficiency reduces production cost；It can implement on existing aluminium alloy production line, without changing existing tooling, it is not necessary to increase Equipment and technology investment, it is simple to operate feasible；By improving intermediate anneal temperature and extending annealing soaking time, make solvable Crystallize phased soln, superfluous crystalline phase particle edges nodularization, so as to improve the deep drawability of 6111 aluminium alloys and baking vanish hardenability Can, it realizes and improves plank deep drawability and baking and hardening performance while cost is reduced, the society's warp brought therefrom Benefit of helping is considerable.
Description of the drawings
Fig. 1 is that the optical microstructure of 6111 aluminum alloy plate materials of body of a motor car made from the embodiment of the present invention 1 schemes；
Fig. 2 is that the optical microstructure of 6111 aluminum alloy plate materials of body of a motor car made from comparative example 1 of the present invention schemes.
Specific embodiment：
With reference to embodiment, the present invention is described in further detail.
At 6111 aluminum alloy plate materials performance indicators of the embodiment of the present invention and comparative example 1 (stretching and cupping test) and baking vanish Performance indicator after reason is shown in Table 1.
The performance after 6111 aluminum alloy plate materials supply of material state performance index and paint baking is made in 1 embodiment and comparative example of table Index
There is good forming property by 6111 aluminum alloy plate materials that the 1 visible present invention of table prepares, through simulating baking vanish Show good baking hardenability afterwards, hence it is evident that better than comparative example 1 by 6111 conventionally produced aluminum alloy plate materials into Shape index and baking vanish hardenability index.
It is GB/T228-2002 that the embodiment of the present invention and comparative example 1, which carry out tension test accepted standard,《Metal material room Warm stretching test method》.
It is GB/T4156-2007 that the embodiment of the present invention and comparative example 1, which carry out cupping test accepted standard,《Metal cupping is real Proved recipe method》.
Paint baking in the embodiment of the present invention and comparative example 1 is after 2% predeformation, then is carried out in drying box The simulation baking vanish heat treatment of 185 DEG C × 20min, then measures its intensity.
6111 aluminium alloy cast ingots are made using direct water-cooling semi-continuous casting (DC castings) in the embodiment of the present invention and comparative example 1 .
In the embodiment of the present invention and comparative example 1 6111 aluminium alloy cast ingots before heating, through cropping milling surface treatment.
Hot rolling mode in the embodiment of the present invention and comparative example 1 is combined for cross rolling with longitudinally rolling, course of hot rolling 3~5 passages first are rolled along rectangle ingot width direction, 8~15 passages is rolled then along slab ingot length direction, obtains hot rolled plate Material.
The equipment that solution treatment and Pre-aging treatment use in the embodiment of the present invention and comparative example 1 is resistance furnace.
Embodiment 1
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 200 DEG C are heated to, keeps the temperature 4h；460 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate after cycle cyclone furnace is heated to 480 DEG C and keeps the temperature 6h, the type of cooling is air-cooled To room temperature, obtain annealed state and roll plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；The finish to gauge thickness of cold-reduced sheet is 0.9mm；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein, the heating temperature of solid solution It is 550 DEG C, soaking time 12min to spend, and the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：After solution treatment, cold-reduced sheet is 7min in the standing time of room temperature；
(7) Pre-aging treatment：Pre-aging treatment is carried out to being placed at room temperature for rear plank, rolls plate after forming Pre-aging treatment；Its In, the temperature of preageing is 170 DEG C, and the Pre-aging treatment time is 8min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 33 days, i.e. T4P states, 6111-T4P is made Aluminum alloy plate materials；Optical microstructure is as shown in Figure 1；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure 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, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots, thickness 180mm are prepared using direct water-cooling semi-continuous casting；
(2) Homogenization Treatments：6111 aluminium alloy cast ingots are fitted into cycle wind furnace, 550 DEG C of heat preservations are warming up to for 24 hours with stove Afterwards, it comes out of the stove and is air-cooled to room temperature；
(3) it heats：After 6111 aluminium alloy cast ingot after cooling is cut off milling surface treatment, 440 DEG C are heated to, keeps the temperature 3h；
(4) hot rolling：To 6111 aluminium alloy cast ingots after heat preservation, hot rolling is carried out, first rolls 5 along rectangle ingot width direction 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 scale, 430 DEG C are heated in wind furnace is recycled, after keeping the temperature 2h, with furnace cooling But it to room temperature, obtains annealed state and rolls 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 to cold-reduced sheet, the heating temperature of solution treatment is 550 DEG C, and soaking time is 11min, the type of cooling are water quenching to room temperature, roll plate after forming solution treatment；
(8) it is placed at room temperature for：20min is placed at room temperature for rolling plate after solution treatment；
(9) Pre-aging treatment：To rolling plate, progress Pre-aging treatment after being placed at room temperature for, 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；
(10) it is placed at room temperature for：Plate will be rolled after Pre-aging treatment, be placed at room temperature for 33 days, as T4P states, 6111 aluminium are made and close Golden plate material；Optical microstructure is as shown in Figure 2；
6111 aluminum alloy plate materials made from this comparative example are stretched and cupping test, and to made from this comparative example 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 2
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 260 DEG C are heated to, keeps the temperature 5h；470 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 5mm；
(3) intermediate annealing：By hot rolled plate at 495 DEG C, after keeping the temperature 5h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；The finish to gauge thickness of cold-reduced sheet is 0.9mm；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein, the heating temperature of solid solution It is 540 DEG C, soaking time 14min to spend, and the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：After solution treatment, cold-reduced sheet is 15min in the standing time of room temperature；
(7) Pre-aging treatment：Pre-aging treatment is carried out to being placed at room temperature for rear plank, rolls plate after forming Pre-aging treatment；Its In, the temperature of preageing is 180 DEG C, and the Pre-aging treatment time is 15min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 38 days, i.e. T4P states, 6111-T4P is made Aluminum alloy plate materials；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 3
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 390 DEG C are heated to, keeps the temperature 6h；475 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 495 DEG C, after keeping the temperature 5h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；The finish to gauge thickness of cold-reduced sheet is 0.9mm；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein, the heating temperature of solid solution It is 540 DEG C, soaking time 14min to spend, and the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：After solution treatment, cold-reduced sheet is 15min in the standing time of room temperature；
(7) Pre-aging treatment：Pre-aging treatment is carried out to being placed at room temperature for rear plank, rolls plate after forming Pre-aging treatment；Its In, the temperature of preageing is 180 DEG C, and the Pre-aging treatment time is 15min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 45 days, i.e. T4P states, 6111-T4P is made Aluminum alloy plate materials；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 4
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 400 DEG C are heated to, keeps the temperature 4h；490 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 2h, obtains hot rolled plate, hot rolling plate thickness is 6mm；
(3) intermediate annealing：By hot rolled plate at 480 DEG C, after keeping the temperature 2h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；The finish to gauge thickness of cold-reduced sheet is 0.9mm；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein, the heating temperature of solid solution It is 540 DEG C, soaking time 18min to spend, and the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：After solution treatment, cold-reduced sheet is 12min in the standing time of room temperature；
(7) Pre-aging treatment：Pre-aging treatment is carried out to being placed at room temperature for rear plank, rolls plate after forming Pre-aging treatment；Its In, the temperature of preageing is 169 DEG C, and the Pre-aging treatment time is 7min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 29 days, i.e. T4P states, 6111-T4P is made Aluminum alloy plate materials；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 5
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 215 DEG C are heated to, keeps the temperature 5h；480 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 530 DEG C, after keeping the temperature 2h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；The finish to gauge thickness of cold-reduced sheet is 0.9mm；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein, the heating temperature of solid solution It is 538 DEG C, soaking time 11min to spend, and the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：After solution treatment, cold-reduced sheet is 6min in the standing time of room temperature；
(7) Pre-aging treatment：Pre-aging treatment is carried out to being placed at room temperature for rear plank, rolls plate after forming Pre-aging treatment；Its In, the temperature of preageing is 188 DEG C, and the Pre-aging treatment time is 15min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 29 days, i.e. T4P states, 6111-T4P is made Aluminum alloy plate materials；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 6
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 305 DEG C are heated to, keeps the temperature 4h；460 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 490 DEG C, after keeping the temperature 6h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；The finish to gauge thickness of cold-reduced sheet is 1.1mm；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein, the heating temperature of solid solution It is 540 DEG C, soaking time 15min to spend, and the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：After solution treatment, cold-reduced sheet is 12min in the standing time of room temperature；
(7) Pre-aging treatment：Pre-aging treatment is carried out to being placed at room temperature for rear plank, rolls plate after forming Pre-aging treatment；Its In, the temperature of preageing is 179 DEG C, and the Pre-aging treatment time is 10min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 35 days, i.e. T4P states, 6111-T4P is made Aluminum alloy plate materials；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 7
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 230 DEG C are heated to, keeps the temperature 5h；470 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 2h, obtains hot rolled plate, hot rolling plate thickness is 5mm；
(3) intermediate annealing：By hot rolled plate at 485 DEG C, after keeping the temperature 6h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；The finish to gauge thickness of cold-reduced sheet is 1.2mm；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein, the heating temperature of solid solution It is 540 DEG C, soaking time 15min to spend, and the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：After solution treatment, cold-reduced sheet is 12min in the standing time of room temperature；
(7) Pre-aging treatment：Pre-aging treatment is carried out to being placed at room temperature for rear plank, rolls plate after forming Pre-aging treatment；Its In, the temperature of preageing is 170 DEG C, and the Pre-aging treatment time is 13min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 49 days, i.e. T4P states, 6111-T4P is made Aluminum alloy plate materials；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 8
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 410 DEG C are heated to, keeps the temperature 6h；480 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4.2mm；
(3) intermediate annealing：By hot rolled plate at 510 DEG C, after keeping the temperature 4h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 0.9mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 535 DEG C, keeps the temperature 12min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 14min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 190 DEG C, the time For 15min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 41 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 9
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 287 DEG C are heated to, keeps the temperature 4h；480 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 2h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 520 DEG C, after keeping the temperature 2h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 540 DEG C, keeps the temperature 16min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 13min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 180 DEG C, the time For 11min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 42 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 10
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 385 DEG C are heated to, keeps the temperature 5h；460 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 2h, obtains hot rolled plate, hot rolling plate thickness is 5mm；
(3) intermediate annealing：By hot rolled plate at 515 DEG C, after keeping the temperature 4h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 540 DEG C, keeps the temperature 16min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 11min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 185 DEG C, the time For 7min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 48 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 11
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 380 DEG C are heated to, keeps the temperature 4h；475 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 2h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 535 DEG C, after keeping the temperature 2h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 550 DEG C, keeps the temperature 20min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 10min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 170 DEG C, the time For 8min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 51 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 12
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 380 DEG C are heated to, keeps the temperature 5h；490 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 525 DEG C, after keeping the temperature 5h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 541 DEG C, keeps the temperature 10min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 13min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 164 DEG C, the time For 10min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 42 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 13
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 380 DEG C are heated to, keeps the temperature 6h；500 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 6mm；
(3) intermediate annealing：By hot rolled plate at 540 DEG C, after keeping the temperature 3h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.2m；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 540 DEG C, keeps the temperature 18min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 9min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 176 DEG C, the time For 10min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 28 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 14
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 245 DEG C are heated to, keeps the temperature 4h；455 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 2h, obtains hot rolled plate, hot rolling plate thickness is 7mm；
(3) intermediate annealing：By hot rolled plate at 510 DEG C, after keeping the temperature 5h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 545 DEG C, keeps the temperature 19min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 13min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 190 DEG C, the time For 5min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 34 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 15
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 385 DEG C are heated to, keeps the temperature 4h；480 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 520 DEG C, after keeping the temperature 4h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.2mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 542 DEG C, keeps the temperature 15min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 12min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 190 DEG C, the time For 15min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 35 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 16
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 256 DEG C are heated to, keeps the temperature 5h；485 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 2h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 510 DEG C, after keeping the temperature 2h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 540 DEG C, keeps the temperature 11min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 15min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 160 DEG C, the time For 10min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 33 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 17
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 360 DEG C are heated to, keeps the temperature 6h；480 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 4h, obtains hot rolled plate, hot rolling plate thickness is 5mm；
(3) intermediate annealing：By hot rolled plate at 500 DEG C, after keeping the temperature 6h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.0mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 547 DEG C, keeps the temperature 11min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 6min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 190 DEG C, the time For 10min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 39 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 18
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 392 DEG C are heated to, keeps the temperature 2h；490 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 535 DEG C, after keeping the temperature 4h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.2mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 541 DEG C, keeps the temperature 10min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 5min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 180 DEG C, the time For 9min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 37 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 19
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 390 DEG C are heated to, keeps the temperature 4h；495 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 540 DEG C, after keeping the temperature 4h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 540 DEG C, keeps the temperature 14min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 14min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 190 DEG C, the time For 10min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 31 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 20
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 390 DEG C are heated to, keeps the temperature 4h；485 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 515 DEG C, after keeping the temperature 2h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 540 DEG C, keeps the temperature 15min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 8min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 188 DEG C, the time For 6min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 30 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 21
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 395 DEG C are heated to, keeps the temperature 5h；495 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 4h, obtains hot rolled plate, hot rolling plate thickness is 5mm；
(3) intermediate annealing：By hot rolled plate at 525 DEG C, after keeping the temperature 4h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 0.9mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 540 DEG C, keeps the temperature 11min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 14min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 190 DEG C, the time For 12min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 32 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 22
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 277 DEG C are heated to, keeps the temperature 6h；500 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 4h, obtains hot rolled plate, hot rolling plate thickness is 5mm；
(3) intermediate annealing：By hot rolled plate at 510 DEG C, after keeping the temperature 3h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 539 DEG C, keeps the temperature 13min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 7min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 185 DEG C, the time For 7min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 41 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 23
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 365 DEG C are heated to, keeps the temperature 6h；500 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 3h, obtains hot rolled plate, hot rolling plate thickness is 6mm；
(3) intermediate annealing：By hot rolled plate at 520 DEG C, after keeping the temperature 3h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 535 DEG C, keeps the temperature 20min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 7min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 180 DEG C, the time For 7min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 32 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 24
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 237 DEG C are heated to, keeps the temperature 4h；500 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 2h, obtains hot rolled plate, hot rolling plate thickness is 5mm；
(3) intermediate annealing：By hot rolled plate at 535 DEG C, after keeping the temperature 6h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 535 DEG C, keeps the temperature 12min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 14min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 190 DEG C, the time For 15min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 29 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 25
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 375 DEG C are heated to, keeps the temperature 4h；495 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 4h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 500 DEG C, after keeping the temperature 2h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1.1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 537 DEG C, keeps the temperature 15min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 10min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 160 DEG C, the time For 10min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 28 days, i.e. T4P states, 6111-T4P is made Plank；
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.
Embodiment 26
A kind of preparation method of 6111 aluminum alloy plate materials, includes the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 345 DEG C are heated to, keeps the temperature 5h；475 DEG C are then raised temperature to, It comes out of the stove hot rolling after heat preservation 4h, obtains hot rolled plate, hot rolling plate thickness is 4mm；
(3) intermediate annealing：By hot rolled plate at 490 DEG C, after keeping the temperature 3h, the type of cooling obtains annealed state to be air-cooled to room temperature Roll plate；
(4) cold rolling：By annealed state plank by cold rolling, cold-reduced sheet is made, the finish to gauge thickness of cold-reduced sheet is 1mm；
(5) solution treatment：Cold-reduced sheet obtained is dissolved in resistance furnace, the temperature of solid solution is 539 DEG C, keeps the temperature 13min, The type of cooling is water cooling to room temperature；
(6) it is placed at room temperature for：After being dissolved cooling, cold-reduced sheet is 14min in the residence time of room temperature；
(7) Pre-aging treatment：The plank being dissolved is subjected to Pre-aging treatment again, the temperature of preageing is 176 DEG C, the time For 12min；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 40 days, i.e. T4P states, 6111-T4P is made Plank.
6111 aluminum alloy plate materials made from the present embodiment are stretched and cupping test, and to made from the present embodiment 6111 aluminum alloy plate materials are after 2% predeformation, then the simulation baking vanish of 185 DEG C × 20min of progress heats in drying box, with After measure its intensity；Related performance indicators data are shown in Table 1.

Claims (7)

1. a kind of body of a motor car preparation method of 6111 aluminum alloy plate materials, it is characterised in that include the following steps：
(1) prepared by ingot casting：6111 aluminium alloy cast ingots are prepared using semi-continuous casting method；
(2) pretreatment and hot rolling：By 6111 aluminium alloy cast ingots, 200~400 DEG C are heated to, keeps the temperature 2~6h；Then raise temperature to 460 It~500 DEG C, comes out of the stove hot rolling after keeping the temperature 2~4h, obtains hot rolled plate；
(3) intermediate annealing：Hot rolled plate is heated to 480~550 DEG C, keeps the temperature 2~6h, cools to room temperature with the furnace, obtains annealed state Roll plate；
(4) cold rolling：Annealed state plank is subjected to cold rolling, cold-reduced sheet is made；
(5) solution treatment：Solution treatment is carried out to cold-reduced sheet, obtains solution treatment state plank；Wherein solid solution temperature 535~ 550 DEG C, 10~20min of time, the type of cooling is water quenching to room temperature；
(6) it is placed at room temperature for：Cold-reduced sheet after solution treatment is being placed at room temperature for 5~15min；
(7) Pre-aging treatment：Pre-aging treatment is carried out to the plank after being placed at room temperature for, rolls plate after forming Pre-aging treatment；Wherein Pre-ageing treatment temperature is 160~190 DEG C, and the time is 5~15min, and the type of cooling is is air-cooled to room temperature；
(8) it is placed at room temperature for：Plank after Pre-aging treatment is carried out to be placed at room temperature for 4 weeks or more, i.e. T4P states, body of a motor car is made With 6111 aluminum alloy plate materials.
A kind of 2. preparation method of 6111 aluminum alloy plate materials of body of a motor car according to claim 1, it is characterised in that institute The 6111 aluminium alloy cast ingot ingredients stated contain Si by mass percentage：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.
A kind of 3. preparation method of 6111 aluminum alloy plate materials of body of a motor car according to claim 1, it is characterised in that institute 6111 aluminium alloy cast ingots stated are made using direct water-cooling semi-continuous casting.
A kind of 4. preparation method of 6111 aluminum alloy plate materials of body of a motor car according to claim 1, it is characterised in that institute 6111 aluminium alloy cast ingots stated are before hot rolling heating, and by cutting off milling surface treatment, hot rolling mode is rolled for cross rolling and longitudinal direction Be combined, course of hot rolling first along rectangle ingot width direction roll 3~5 passages, then along rectangle ingot length direction rolling 8~ 15 passages obtain hot rolled plate.
A kind of 5. preparation method of 6111 aluminum alloy plate materials of body of a motor car according to claim 1, it is characterised in that institute The 6111 aluminium alloy cast ingot thickness 180mm stated, hot rolling 4~7mm of plate thickness, 0.9~1.2mm of Cold Rolled Plate Thickness.
6. a kind of body of a motor car according to claim 1 preparation method of 6111 car body of aluminum alloy plates, it is characterised in that The body of a motor car is with the performance indicator of 6111 aluminum alloy plate materials：σ0.2=136~161MPa, σb=294~321MPa, r15=0.65~0.77, n=0.26~0.31, δ=23.2~26.6%, IE=7.90~8.34mm.
A kind of 7. preparation method of 6111 aluminum alloy plate materials of body of a motor car according to claim 1, it is characterised in that institute The body of a motor car stated is with the performance indicator after 6111 aluminum alloy plate materials paint bakings：σ0.2=263~279MPa, σb=358~ 376MPa, δ=14.4~16.4%.
CN201810182837.0A 2018-03-06 2018-03-06 A kind of preparation method of 6111 aluminum alloy plate materials of body of a motor car Pending CN108251712A (en)

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CN109022930A (en) * 2018-07-23 2018-12-18 武汉理工大学 A kind of magnetic treatment and modification aluminium alloy automobile wagon sheet and preparation method thereof
CN109207812A (en) * 2018-11-29 2019-01-15 天津忠旺铝业有限公司 A kind of curtain wall 6060 aluminum alloy plate materials and preparation method thereof
CN114737070A (en) * 2022-04-02 2022-07-12 天津忠旺铝业有限公司 Preparation method of 6111-T7-state aluminum alloy plate
CN115874122A (en) * 2021-09-28 2023-03-31 宝山钢铁股份有限公司 Low-temperature pre-aging treatment method for improving hardening increment of 6451 aluminum alloy baking varnish

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109022930A (en) * 2018-07-23 2018-12-18 武汉理工大学 A kind of magnetic treatment and modification aluminium alloy automobile wagon sheet and preparation method thereof
CN109207812A (en) * 2018-11-29 2019-01-15 天津忠旺铝业有限公司 A kind of curtain wall 6060 aluminum alloy plate materials and preparation method thereof
CN115874122A (en) * 2021-09-28 2023-03-31 宝山钢铁股份有限公司 Low-temperature pre-aging treatment method for improving hardening increment of 6451 aluminum alloy baking varnish
CN115874122B (en) * 2021-09-28 2024-04-05 宝山钢铁股份有限公司 Low-temperature pre-ageing treatment method for improving baking varnish hardening increment of 6451 aluminum alloy
CN114737070A (en) * 2022-04-02 2022-07-12 天津忠旺铝业有限公司 Preparation method of 6111-T7-state aluminum alloy plate

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