CN106834826B - A kind of aluminium alloy strips and its manufacturing method - Google Patents
A kind of aluminium alloy strips and its manufacturing method Download PDFInfo
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- CN106834826B CN106834826B CN201611199315.9A CN201611199315A CN106834826B CN 106834826 B CN106834826 B CN 106834826B CN 201611199315 A CN201611199315 A CN 201611199315A CN 106834826 B CN106834826 B CN 106834826B
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 119
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 56
- 238000005097 cold rolling Methods 0.000 claims abstract description 178
- 238000000137 annealing Methods 0.000 claims abstract description 136
- 238000005266 casting Methods 0.000 claims abstract description 115
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 39
- 239000012535 impurity Substances 0.000 claims abstract description 37
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 238000005098 hot rolling Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 72
- 238000005096 rolling process Methods 0.000 claims description 11
- 239000000956 alloy Substances 0.000 description 53
- 229910052751 metal Inorganic materials 0.000 description 50
- 239000002184 metal Substances 0.000 description 50
- 239000011777 magnesium Substances 0.000 description 49
- 229910045601 alloy Inorganic materials 0.000 description 46
- 238000003801 milling Methods 0.000 description 45
- 229910052782 aluminium Inorganic materials 0.000 description 40
- 238000002791 soaking Methods 0.000 description 31
- 239000004411 aluminium Substances 0.000 description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 30
- 239000011572 manganese Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 27
- 238000009966 trimming Methods 0.000 description 27
- 238000012545 processing Methods 0.000 description 16
- 238000010438 heat treatment Methods 0.000 description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 12
- 238000011056 performance test Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 10
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 10
- -1 aluminium manganese Chemical compound 0.000 description 10
- 238000007872 degassing Methods 0.000 description 10
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 238000000746 purification Methods 0.000 description 10
- 238000007670 refining Methods 0.000 description 10
- 238000010079 rubber tapping Methods 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000010998 test method Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000007547 defect Effects 0.000 description 9
- 238000007689 inspection Methods 0.000 description 9
- 238000004886 process control Methods 0.000 description 9
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Continuous Casting (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Conductive Materials (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides a kind of aluminium alloy strips and its manufacturing method.The manufacturing method of the aluminium alloy strips of the present invention, includes the following steps：1) all heat-treated is carried out to ingot casting；2) hot rolling is carried out to the ingot casting through all heat-treated；3) cold rolling and annealing are carried out to hot rolled ingot casting；Wherein, the composition of the ingot casting is：Si：≤ 0.10wt%, Fe：≤ 0.2wt%, Mn：0.18 0.25wt%, Mg：5.0 6.5wt%, surplus are Al and inevitable impurity.High, the excellent combination property using the aluminium alloy strips tensile strength and yield strength of manufacturing method of the present invention manufacture.
Description
Technical field
The present invention relates to a kind of aluminium alloys, and in particular to a kind of aluminium alloy strips and its manufacturing method.
Background technology
Aluminium alloy is most widely used one kind non-ferrous metal structural material in industry, in Aeronautics and Astronautics, automobile, machinery
It has been widely applied in manufacture, ship and chemical industry.The main alloy element of 5 line aluminium alloys is Mg, with the increase of Mg contents,
The intensity of aluminum alloy materials improves, but plasticity decreases, and process industrial art performance is deteriorated therewith, so that following process phase
To difficulty.Therefore, 5 line aluminium alloys usually control Mg contents below 5.0%.
5182 alloys are a kind of 5 representative line aluminium alloys, consisting of：Si：0.10wt%, Fe：0.2wt%,
Mn：0.3wt%, Mg：4.8wt%, surplus are Al and inevitable impurity.The manufacturing method of 5182H32 alloys is usually：It presses
After set component carries out aluminium alloy melt processing, it is cast as alloy cast ingot；Ingot casting is subjected to soaking, heating, hot rolling successively, is made
The coils of hot rolled of 6.5mm left and right thicknesses；After coils of hot rolled is cold-rolled to 2.0mm or so, annealing, and it is cold-rolled to 0.6mm；It is above-mentioned
The tensile strength of 5182H32 alloys be 317MPa, yield strength 234MPa, elongation percentage 9%.
In existing aluminium alloy Mg contents be usually 5% hereinafter, although processing is relatively easy, under identical elongation percentage,
Tensile strength and yield strength are relatively low, can not meet high intensity and use needs.It would therefore be highly desirable to it is good to develop a kind of comprehensive performance
Good aluminum alloy materials.
Invention content
The present invention provides a kind of aluminium alloy strips and its manufacturing method, and the aluminium alloy strips prepared using the manufacturing method are resisted
Tensile strength and yield strength are high, excellent combination property.
The present invention provides a kind of manufacturing method of aluminium alloy strips, includes the following steps：
1) all heat-treated is carried out to ingot casting；
2) hot rolling is carried out to the ingot casting through all heat-treated；
3) cold rolling and annealing are carried out to hot rolled ingot casting；
Wherein, the composition of the ingot casting is：
Si：≤ 0.10wt%, Fe：≤ 0.2wt%, Mn：0.18-0.25wt%, Mg：5.0-6.5wt%, surplus for Al and
Inevitable impurity.
In the present invention, more than 5.0%, while Mn contents are arranged on for manufacturing the Mg contents of the ingot casting of aluminium alloy strips
It controls in 0.18-0.25wt%, can be overcome in aluminum alloy materials as Mg contents increase using ingot casting manufacture aluminium alloy strips
The problems such as plasticity for adding and bringing reduces and process industrial art performance is deteriorated, the processing of aluminum alloy materials when improving high content of magnesium
Performance.
In the present invention, aluminium alloy strips refer to the bigger band-like aluminum alloy materials supplied in rolls of length and width；To aluminium
The width and thickness of alloy strip steel rolled stock do not limit strictly, can be the stock size of this field.
In the ingot casting of the present invention, total content≤0.15wt% of the impurity；In addition, each impurity in the impurity
Content≤0.05wt%.The present invention does not limit the specific ingredient of the impurity strictly, such as can be Cu, Cr, Zn etc..
In the present invention, Mg is the main intensified element of aluminium alloy strips, and content range is：5.0wt% ＜ Mg≤
6.5wt%；It is further 5.2-5.9wt%；Further it is 5.4-5.8wt%；Preferably 5.6-5.7wt%.
In the present invention, Mn contents are controlled in 0.18-0.25wt%, can overcome because Mg contents are in more than 5.0wt%
When the plasticity and processability problems brought；Further, the content range of Mn can be 0.20-0.25%.
Further, the content range of Si can be 0.08-0.1wt%；The content range of Fe can be 0.1-
0.15wt%.
Preferably, the composition of ingot casting of the invention is：Si：0.08-0.1wt%, Fe：0.1-0.15wt%, Mn：0.20-
0.25wt%, Mg：5.4-5.8wt%, surplus are Al and inevitable impurity.The compositing range is conducive to make the aluminium of manufacture to close
Gold ribbon material comprehensive performance is more excellent.
In the present invention, conventional method may be used and manufacture the ingot casting；For example, after can technical pure aluminium ingot be melted,
Pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy, aluminium silicon intermediate alloy are added in, founding system is carried out after melting purification, degasification
.Wherein, the condition of founding can be：Cast ingot dimension：560mm*1420mm*5200mm；Ingredient Composition Control dispensing as required；
735-750 DEG C of refining temperature；Casting speed 40-50mm/min, water flow 200-220m3/ h, 665-690 DEG C of casting temperature.It is special
It is not that should control grain size when manufacturing ingot casting；Specifically, grain size≤2 grade can be controlled.
In the present invention, each element that all heat-treated is used to enable aluminum alloy in band is fully dissolved, is spread, so as to be distributed
It is even；Specifically, the condition of soaking can be：440-500 DEG C of soaking temperature, soaking time 56-64h.The equal heat condition is conducive to β
Mutually uniformly it is precipitated.In one embodiment, equal thermal system is specifically as follows：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes constant temperature
480 DEG C, keep the temperature 60h.
Further, ingot casting is heated before hot rolling.Heating condition can be：430-490 DEG C of heating temperature, adds
Hot time 5-7h.Specifically, it can be heated under the following conditions：500 DEG C of furnace gas constant temperature surveys metal temperature and reaches 460 DEG C, stove
Gas changes 480 DEG C of constant temperature, keeps the temperature 6h, 450-480 DEG C of metal tapping temperature.
In the present invention, the condition of hot rolling can be：450-480 DEG C of start rolling temperature, 300 DEG C of finishing temperature ＞；It is in addition, hot
Rolling finished product thickness can control in 6.0 ± 0.3mm.Above-mentioned hot-rolled condition is conducive to improve the processability of above-mentioned aluminium alloy strips
Energy.
Further, step 3) includes：Hot rolled ingot casting is carried out successively the first cold rolling, the first annealing, the second cold rolling,
Second annealing, third cold rolling.The manufacturing method of the present invention manufactures aluminium alloy strips using twice annealing process, so as to improve closing
Processing performance of the golden material under cold state, and reduce the probability of crackle and broken belt.
Further, third annealing (i.e. finished product additional heat-treatment) is further included after the third cold rolling；Third annealing can
Think process annealing.Third make annealing treatment so that aluminium alloy strips intensity, it is moulding obtain matched well, can improve and stablize
The performance of aluminium alloy strips, while improve the resistance to corrosion of aluminium alloy strips, eliminate aluminium alloy strips institute in cold-rolled process
The internal stress of generation.
Specifically, the coils of hot rolled formed through above-mentioned hot rolling can be cold-rolled to 3.0mm or so by the first cold rolling.First annealing can
For insulation annealing, condition can be：300-360 DEG C of annealing temperature, annealing time 1.5-2.5h；Specifically, the first annealing schedule
Can be：220 DEG C of constant temperature keeps 4h, changes 450 DEG C of constant temperature, and 310 DEG C of metal temperature changes 350 DEG C of constant temperature, 330 DEG C of holdings of metal
2h.First annealing is conducive to improve the processing performance of material.
The cold rolling coiled material formed through the above-mentioned first annealing can be cold-rolled to 0.65-0.80mm by the second cold rolling.Second moves back
Fire condition can be：300-360 DEG C of annealing temperature, annealing time 1.5-2.5h.Second annealing is conducive to control the property of finished product
Energy.
The cold rolling coiled material formed through the above-mentioned second annealing can be cold-rolled to target thickness, such as 0.5- by third cold rolling
0.6mm.Third annealing condition can be：120-180 DEG C of annealing temperature, annealing time 7.5-8.5h.
The present invention also provides a kind of aluminium alloy strips, are made according to any of the above-described manufacturing method.
Specifically, the composition of aluminium alloy strips is：Si：≤ 0.10wt%, Fe：≤ 0.2wt%, Mn：0.18-
0.25wt%, Mg：5.0-6.5wt%, surplus are Al and inevitable impurity.
Further, in aluminium alloy strips impurity total content≤0.15wt%；In addition, each impurity in the impurity
Content≤0.05wt%.The specific ingredient of the impurity is not limited strictly, such as can be Cu, Cr, Zn etc..
In above-mentioned aluminium alloy strips, the content range of Mg is：5.0wt% ＜ Mg≤6.5wt%；It is further 5.2-
5.9wt%；Further it is 5.4-5.8wt%；Preferably 5.6-5.7wt%.The content range of Mn can be 0.20-
0.25%；The content range of Si can be 0.08-0.1wt%；The content range of Fe can be 0.1-0.15wt%.
Preferably, the composition of aluminium alloy strips is：Si：0.08-0.1wt%, Fe：0.1-0.15wt%, Mn：0.20-
0.25wt%, Mg：5.4-5.8wt%, surplus are Al and inevitable impurity.The aluminium alloy strips of the compositing range are comprehensive
It can be more excellent.
In addition, tensile strength >=360MPa of above-mentioned aluminium alloy strips；Yield strength >=280MPa；Elongation percentage >=8%；Firmly
Degree >=110.
The implementation of the present invention, at least has the advantage that：
1st, the manufacturing method of the present invention by the Mn contents control in ingot casting in optimum range, so as to overcome aluminum alloy materials
It is the problems such as caused plasticity of more than 5.0wt% reduces and process industrial art performance is deteriorated in Mg contents, improves high magnesium and contain
The processing performance of aluminum alloy materials during amount.
2nd, the manufacturing method of the present invention manufactures aluminium alloy strips under specific finishing temperature, so as to make aluminium alloy obtained
The processing performance of band is improved significantly and improves.
3rd, the manufacturing method of the present invention manufactures aluminium alloy strips using twice annealing process, enables aluminum alloy to band in cold state
Under processing performance improved, Plastic Forming performance meets cold working process needs, and the probability of crackle and broken belt substantially reduces.
4th, the manufacturing method of the present invention is further using finished product additional heat-treatment, so as to enable aluminum alloy to the comprehensive performance of band
Intensity, it is moulding optimized, while eliminate the internal stress of cold-strip, improve the corrosion resistance of aluminium alloy strips.
Description of the drawings
Fig. 1 is the metallograph of aluminium alloy strips prepared by the embodiment of the present invention 1；
Fig. 2 is the metallograph of aluminium alloy strips prepared by reference examples 1 of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the embodiment of the present invention, to this
Technical solution in inventive embodiments is clearly and completely described, it is clear that described embodiment is that a part of the invention is real
Example is applied, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creation
Property labour under the premise of all other embodiments obtained, shall fall within the protection scope of the present invention.
Embodiment 1
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560mm*1420mm*5200mm specifications is made；Wherein,
The composition of ingot casting is：Si：0.02wt%, Fe：0.2wt%, Mn：0.25wt%, Mg：5.2wt%, surplus is for Al and unavoidably
Impurity.
When manufacturing ingot casting, process control condition is：740 DEG C of refining temperature；Casting speed 45mm/min, water flow 210m3/
H, 680 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
460 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：450 DEG C of constant temperature, 310 DEG C of metal temperature,
Change 350 DEG C of constant temperature, 330 DEG C of holding 2h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 330 DEG C of metal temperature
Hold 2h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：150℃
Anneal 8h.
The composition of aluminium alloy strips manufactured by the above method is：Si：0.02wt%, Fe：0.2wt%, Mn：
0.25wt%, Mg：5.2wt%, surplus are Al and inevitable impurity.
Fig. 1 is the metallograph of the aluminium alloy strips of above-mentioned preparation.Metallograph the result shows that：Its crystal grain is oval along longitudinal direction
(i.e. crystal grain is oval, is elongated along longitudinal direction) without the apparent high textured fibre tissue in longitudinal direction, has the aluminum alloy strip of the structure
Material has preferable moulding under conditions of high intensity is kept.
In addition, using GB/T 228-2010 (metal material stretching test room temperature test method) method to aluminium alloy strips
Tensile strength (Rm), yield strength (Rp0.2) and elongation percentage (A50) be detected；Using GB/T 4340.1-2009 to aluminium
The hardness (HV0.5) of alloy strip steel rolled stock is detected, and the results are shown in Table 1.
Embodiment 2
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560mm*1420mm*5200mm specifications is made；Wherein,
The composition of ingot casting is：Si：0.10wt%, Fe：0.15wt%, Mn：0.23wt%, Mg：5.3wt%, surplus is Al and can not keep away
The impurity exempted from.
When manufacturing ingot casting, process control condition is：735 DEG C of refining temperature；Casting speed 40mm/min, water flow 200m3/
H, 665 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
480 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：450 DEG C of constant temperature, 310 DEG C of metal temperature,
Change 350 DEG C of constant temperature, 320 DEG C of holding 2.5h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 320 DEG C of metal temperature
Hold 2.5h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：180℃
Anneal 7.5h.
The composition of aluminium alloy strips manufactured by the above method is：Si：0.10wt%, Fe：0.15wt%, Mn：
0.23wt%, Mg：5.3wt%, surplus are Al and inevitable impurity.
The internal structure of aluminium alloy strips is observed, the results showed that：The aluminium alloy strips have the aluminium with embodiment 1
The similar metallograph of alloy strip steel rolled stock.
In addition, the performance test results of aluminium alloy strips are shown in Table 1.
Embodiment 3
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560mm*1420mm*5200mm specifications is made；Wherein,
The composition of ingot casting is：Si：0.08wt%, Fe：0.1wt%, Mn：0.18wt%, Mg：5.4wt%, surplus is for Al and unavoidably
Impurity.
When manufacturing ingot casting, process control condition is：750 DEG C of refining temperature；Casting speed 50mm/min, water flow 220m3/
H, 690 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
460 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：450 DEG C of constant temperature, 310 DEG C of metal temperature,
Change 380 DEG C of constant temperature, 360 DEG C of holding 1.5h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 360 DEG C of metal temperature
Hold 1.5h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：165℃
Anneal 8h.
The composition of aluminium alloy strips manufactured by the above method is：Si：0.08wt%, Fe：0.1wt%, Mn：
0.18wt%, Mg：5.4wt%, surplus are Al and inevitable impurity.
The internal structure of aluminium alloy strips is observed, the results showed that：The aluminium alloy strips have the aluminium with embodiment 1
The similar metallograph of alloy strip steel rolled stock.
In addition, the performance test results of aluminium alloy strips are shown in Table 1.
Embodiment 4
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560*1420 specifications is made；Wherein, the composition of ingot casting
For：Si：0.10wt%, Fe：0.15wt%, Mn：0.2 5wt%, Mg：5.5wt%, surplus are Al and inevitable impurity.
When manufacturing ingot casting, process control condition is：745 DEG C of refining temperature；Casting speed 40mm/min, water flow 215m3/
H, 670 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
470 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：450 DEG C of constant temperature, 310 DEG C of metal temperature,
Change 340 DEG C of constant temperature, 320 DEG C of holding 2h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 320 DEG C of metal temperature
Hold 2h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：120℃
Anneal 8.5h.
The composition of aluminium alloy strips manufactured by the above method is：Si：0.10wt%, Fe：0.15wt%, Mn：0.2
5wt%, Mg：5.5wt%, surplus are Al and inevitable impurity.
The internal structure of aluminium alloy strips is observed, the results showed that：The aluminium alloy strips have the aluminium with embodiment 1
The similar metallograph of alloy strip steel rolled stock.
In addition, the performance test results of aluminium alloy strips are shown in Table 1.
Embodiment 5
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560*1420 specifications is made；Wherein, the composition of ingot casting
For：Si：0.10wt%, Fe：0.15wt%, Mn：0.2wt%, Mg：5.6wt%, surplus are Al and inevitable impurity.
When manufacturing ingot casting, process control condition is：740 DEG C of refining temperature；Casting speed 45mm/min, water flow 210m3/
H, 680 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
465 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：Constant temperature 450,310 DEG C of metal temperature, changes
350 DEG C of constant temperature, 330 DEG C of holding 2h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 330 DEG C of metal temperature
Hold 2h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：150℃
Anneal 8h.
The composition of aluminium alloy strips manufactured by the above method is：Si：0.10wt%, Fe：0.15wt%, Mn：
0.2wt%, Mg：5.6wt%, surplus are Al and inevitable impurity.
The internal structure of aluminium alloy strips is observed, the results showed that：The aluminium alloy strips have the aluminium with embodiment 1
The similar metallograph of alloy strip steel rolled stock.
In addition, the performance test results of aluminium alloy strips are shown in Table 1.
Embodiment 6
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560*1420 specifications is made；Wherein, the composition of ingot casting
For：Si：0.08wt%, Fe：0.1wt%, Mn：0.23wt%, Mg：5.7wt%, surplus are Al and inevitable impurity.
When manufacturing ingot casting, process control condition is：740 DEG C of refining temperature；Casting speed 40mm/min, water flow 200m3/
H, 675 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
470 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：450 DEG C of constant temperature, 310 DEG C of metal temperature,
Change 350 DEG C of constant temperature, 320 DEG C of holding 2.5h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 320 DEG C of metal temperature
Hold 2.5h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：180℃
Anneal 7.5h.
The composition of aluminium alloy strips manufactured by the above method is：Si：0.08wt%, Fe：0.1wt%, Mn：
0.23wt%, Mg：5.7wt%, surplus are Al and inevitable impurity.
The internal structure of aluminium alloy strips is observed, the results showed that：The aluminium alloy strips have the aluminium with embodiment 1
The similar metallograph of alloy strip steel rolled stock.
In addition, the performance test results of aluminium alloy strips are shown in Table 1.
Embodiment 7
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560*1420 specifications is made；Wherein, the composition of ingot casting
For：Si：0.10wt%, Fe：0.2wt%, Mn：0.18wt%, Mg：5.8wt%, surplus are Al and inevitable impurity.
When manufacturing ingot casting, process control condition is：740 DEG C of refining temperature；Casting speed 45mm/min, water flow 210m3/
H, 680 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
460 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：Constant temperature 450,310 DEG C of metal temperature, changes
350 DEG C of constant temperature, 330 DEG C of holding 2h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 330 DEG C of metal temperature
Hold 2h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：150℃
Anneal 8h.
The composition of aluminium alloy strips manufactured by the above method is：Si：0.10wt%, Fe：0.2wt%, Mn：
0.18wt%, Mg：5.8wt%, surplus are Al and inevitable impurity.
The internal structure of aluminium alloy strips is observed, the results showed that：The aluminium alloy strips have the aluminium with embodiment 1
The similar metallograph of alloy strip steel rolled stock.
In addition, the performance test results of aluminium alloy strips are shown in Table 1.
Embodiment 8
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560*1420 specifications is made；Wherein, the composition of ingot casting
For：Si：0.10wt%, Fe：0.2wt%, Mn：0.25wt%, Mg：5.9wt%, surplus are Al and inevitable impurity.
When manufacturing ingot casting, process control condition is：750 DEG C of refining temperature；Casting speed 50mm/min, water flow 220m3/
H, 690 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
460 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：450 DEG C of constant temperature, 310 DEG C of metal temperature,
Change 380 DEG C of constant temperature, 360 DEG C of holding 1.5h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 360 DEG C of metal temperature
Hold 1.5h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：165℃
Anneal 8h.
The composition of aluminium alloy strips manufactured by the above method is：Si：0.10wt%, Fe：0.2wt%, Mn：
0.25wt%, Mg：5.9wt%, surplus are Al and inevitable impurity.
The internal structure of aluminium alloy strips is observed, the results showed that：The aluminium alloy strips have the aluminium with embodiment 1
The similar metallograph of alloy strip steel rolled stock.
In addition, the performance test results of aluminium alloy strips are shown in Table 1.
Embodiment 9
The manufacturing method of the aluminium alloy strips of the present embodiment, step are：
1st, ingot casting is manufactured
According to set component, after technical pure aluminium ingot is melted, add in pure magnesium ingot, aluminium manganese intermediate alloy, ferro-aluminum intermediate alloy,
Aluminium silicon intermediate alloy carries out founding after melting purification, degasification, the ingot casting of 560mm*1420mm*5200mm specifications is made；Wherein,
The composition of ingot casting is：Si：0.02wt%, Fe：0.2wt%, Mn：0.25wt%, Mg：5.2wt%, surplus is for Al and unavoidably
Impurity.
When manufacturing ingot casting, process control condition is：740 DEG C of refining temperature；Casting speed 45mm/min, water flow 210m3/
H, 680 DEG C of casting temperature；In addition, in manufacture ingot casting time control combinations granularity≤2 grade, GB/T 3246.2-2012 deformation aluminium can refer to
And the macrostructure method of inspection of part 2 is controlled in Al-alloy products histological test method.
2nd, soaking
Soaking is carried out to above-mentioned ingot casting；Equal thermal system is：500 DEG C of furnace gas constant temperature during 470 DEG C of material temperature, changes 480 DEG C of constant temperature,
Keep the temperature 60h.
After soaking by ingot casting sawing be size 560mm*1420mm*4900mm；Then carry out milling face, milling face mode：QX56:
530mm*1420mm*4900mm, wherein big face each milling 15mm above and below, the facet difference milling 10mm of side 3, make surface without cold shut,
The defects of being mingled with.
3rd, heat is pricked
Ingot casting behind above-mentioned milling face is heated, heating condition is：500 DEG C of furnace gas constant temperature measures metal temperature and reaches
460 DEG C, furnace gas changes 480 DEG C of constant temperature, keeps the temperature 6h, and metal tapping temperature is 450-480 DEG C.
Then, the coils of hot rolled that thickness is 6.0 ± 0.3mm is made in slab hot-rolling；Hot bundle condition is：Hot roughing open rolling temperature
460 DEG C of degree, 300 DEG C of finishing temperature ＞.
4th, the first cold rolling, the first annealing
Coils of hot rolled after being pricked to heat carries out the first cold rolling, and cold rolling coiled material of the thickness for 3.0mm or so is made；First cold rolling
Condition：Blooming pass；6.0-4.8-3.8-3.0；Band sleeve batches.
Then, the first annealing is carried out to above-mentioned cold rolling coiled material；First annealing conditions：450 DEG C of constant temperature, 310 DEG C of metal temperature,
Change 350 DEG C of constant temperature, 330 DEG C of holding 2h of metal.
5th, the second cold rolling, the second annealing
Second cold rolling, the second cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned first annealing：3.0-2.1-1.52；With
Afterwards, re-reeler trimming, 1.52 ± 0.030*1380 ± 2；Band sleeve batches；Face is examined during trimming；Cold rolling again, cold rolling condition：
1.52-1.05-0.76±0.01。
Second annealing is carried out to the cold rolling coiled material formed through above-mentioned cold rolling；Second annealing conditions：It is protected during 330 DEG C of metal temperature
Hold 2h.
6th, third cold rolling, third annealing
Third cold rolling, third cold rolling condition are carried out to the cold rolling coiled material after the above-mentioned second annealing：0.76-0.5 ± 0.01 is rolled
Roller roughness Ra 0.3 (0.27-0.32)；Then, trimming is to 1310 ± 1mm of width.
Third annealing is carried out to the cold rolling coiled material through above-mentioned processing, aluminium alloy strips are made；Third annealing conditions：150℃
Anneal 8h.
The chemical composition of aluminium alloy strips is analyzed using ICP OES, chemical composition is：Si：0.02wt%,
Fe：0.2wt%, Mn：0.25wt%, Mg：6.17wt%, Cu：0.02wt%, Cr：0.02wt%, Zn：0.04wt%, Ti：
0.03wt%, surplus are Al and other inevitable impurity.
The internal structure of aluminium alloy strips is observed, the results showed that：The aluminium alloy strips have the aluminium with embodiment 1
The similar metallograph of alloy strip steel rolled stock.
In addition, the performance test results of aluminium alloy strips are shown in Table 1.
Reference examples 1
5182 alloys that this reference examples manufactures in conventional manner are used as control, consisting of：Si：0.10wt%, Fe：
0.2wt%, Mn：0.3wt%, Mg：4.8wt%, surplus are Al and inevitable impurity.
Fig. 2 is the metallograph of 5182 alloys.Metallograph the result shows that：Its crystal grain is in strip, and there is apparent longitudinal direction to become
Shape bacillar structure, the working hardening of high deflection.
In addition, the performance test results of the aluminium alloy strips of this reference examples are shown in Table 1.
Reference examples 2
The manufacturing method of the aluminium alloy strips of this reference examples, except the Mn contents in ingot casting are 0.3wt%, Mg contents are
5.0wt%, remaining is same as Example 1.The performance test results of the aluminium alloy strips of manufacture are shown in Table 1.
The performance test results of 1 each aluminium alloy strips of table
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. a kind of manufacturing method of aluminium alloy strips, which is characterized in that include the following steps：
1) all heat-treated is carried out to ingot casting；
2) hot rolling is carried out to the ingot casting through all heat-treated, start rolling temperature is 450-480 DEG C, and 300 DEG C of finishing temperature ＞ is rolled into
Product thickness control is in 6.0 ± 0.3mm；
3) the first cold rolling, the first annealing, the second cold rolling, the second annealing, third cold rolling and the are carried out successively to hot rolled ingot casting
Three annealing, the thickness of cold rolling coiled material wherein formed after third cold rolling are 0.5-0.6mm；
Wherein, the composition of the ingot casting is：Si：≤ 0.10wt%, Fe：≤ 0.2wt%, Mn：0.18-0.25wt%, Mg：5.0-
6.5wt%, surplus are Al and inevitable impurity；
It is described first annealing condition be：300-360 DEG C of annealing temperature, annealing time 1.5-2.5h；
It is described second annealing condition be：300-360 DEG C of annealing temperature, annealing time 1.5-2.5h；
The condition of third annealing is：120-180 DEG C of annealing temperature, annealing time 7.5-8.5h.
2. manufacturing method according to claim 1, which is characterized in that total content≤0.15wt% of the impurity.
3. manufacturing method according to claim 1 or 2, which is characterized in that the content of each impurity in the impurity≤
0.05wt%.
4. a kind of aluminium alloy strips, which is characterized in that be made according to any manufacturing method of claims 1 to 3.
5. aluminium alloy strips according to claim 4, which is characterized in that its tensile strength >=360MPa；Yield strength >=
280MPa；Elongation percentage >=8%.
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| CN109022954B (en) * | 2018-09-14 | 2021-05-04 | 东北轻合金有限责任公司 | Aluminum alloy strip for spiral welded pipe and manufacturing method thereof |
| CN114480928A (en) * | 2022-01-28 | 2022-05-13 | 全良金属(苏州)有限公司 | High-strength aluminum plate for electronic product and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102994A (en) * | 1987-04-25 | 1988-11-09 | 中国原子能科学研究院 | Processing technology of hard aluminum alloy strip for deep drawing processing |
| CN101631882A (en) * | 2007-02-12 | 2010-01-20 | 阿勒里斯铝业科布伦茨有限公司 | Al-Mg alloy products suitable for armor plate applications |
| CN103674649A (en) * | 2013-12-13 | 2014-03-26 | 西南铝业（集团）有限责任公司 | Preparation method of spectrum standard sample for 1420 aluminum lithium alloy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5386610A (en) * | 1977-01-10 | 1978-07-31 | Kubota Ltd | Aluminum alloy for casting |
| JPH0347938A (en) * | 1989-07-13 | 1991-02-28 | Sky Alum Co Ltd | Non-heat treated type high strength aluminum alloy for machining |
| FR2752244B1 (en) * | 1996-08-06 | 1998-09-18 | Pechiney Rhenalu | PRODUCT FOR WELDED CONSTRUCTION IN ALMGMN ALLOY WITH IMPROVED CORROSION RESISTANCE |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102994A (en) * | 1987-04-25 | 1988-11-09 | 中国原子能科学研究院 | Processing technology of hard aluminum alloy strip for deep drawing processing |
| CN101631882A (en) * | 2007-02-12 | 2010-01-20 | 阿勒里斯铝业科布伦茨有限公司 | Al-Mg alloy products suitable for armor plate applications |
| CN103674649A (en) * | 2013-12-13 | 2014-03-26 | 西南铝业（集团）有限责任公司 | Preparation method of spectrum standard sample for 1420 aluminum lithium alloy |
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