CN106756671B - Tank body aluminum alloy coiled materials preparation method - Google Patents
Tank body aluminum alloy coiled materials preparation method Download PDFInfo
- Publication number
- CN106756671B CN106756671B CN201611064439.6A CN201611064439A CN106756671B CN 106756671 B CN106756671 B CN 106756671B CN 201611064439 A CN201611064439 A CN 201611064439A CN 106756671 B CN106756671 B CN 106756671B
- Authority
- CN
- China
- Prior art keywords
- rolling
- aluminium alloy
- aluminum alloy
- tank body
- coiled materials
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/02—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working in inert or controlled atmosphere or vacuum
Landscapes
- 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)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Metal Rolling (AREA)
Abstract
The invention discloses a kind of tank body aluminum alloy coiled materials preparation method, include casting ingot casting, hot rolling, cold rolling, rewinding cleaning, finished products and bright rolling, pass through this new technique preparation process and rational parameter setting, under the premise of tank car manufactory design requirement can be met meeting Mechanical Properties of Aluminum Alloys, improve product surface brightness, reduce the lateral surfaces aberration such as wide volume/plate, reduce the surface chromatic aberration of different batches volume/plate.The present invention can remove the processes such as subsequent chemistry polishing from, save later stage surface treatment cost.Compared with traditional aluminum alloy coiled materials production decision, present invention process can produce the tank car tank body with glossy surface and roll up/plate with aluminium alloy, meet that tank car manufactory further mitigates tank weight and tank car client to tank car cosmetic requirements.
Description
Technical field
The present invention relates to technical field of aluminium alloy preparation, more particularly to a kind of tank body aluminum alloy coiled materials preparation method.
Background technology
Important means of the aluminum alloy materials as automotive light weight technology, has obtained extensive in traffic transport industry such as tank car industry
Using.There are japanning processing, development trend of the paint film weight up to 120kg, now aluminium alloy tank car in traditional tank car tank body surface
After aluminum alloy plate materials are made tank body, retain the original rolled surface of plate, tank body is no longer painted further to be subtracted to reach
The purpose of light tank weight.Under this trend, tank car client is higher and higher to tank surface quality requirement.
Aluminum alloy sheet material surface influencing factors of quality mainly includes ingot casting degree of purity, the micro- geometry of rolled surface, table
Face oxide microstructure etc..Ingot casting degree of purity refer to hydrogen in ingot casting, alkali metal and other impurities for example oxide, carbide,
The content of the materials such as boride, chloride, intermetallic compound, the thorough purification of melt can be by hydrogen, alkali metal and other impurities
Content is down to extremely low level.For low degree of purity ingot casting after machining, being heat-treated, surface may show the matter such as bubble, slag inclusion
Defect is measured, hydrogen content or impurity content height will also result in the deterioration of aluminum alloy materials mechanical performance.Aluminum alloy sheets and strips surface is thick
Rugosity value is one of important parameter for evaluating surface quality, significant to plate face glossiness, exterior appearance etc..Roll is to plate
Material surface has photocopying effect, and the micro- geometry of plate surface is determined by the micro- geometry of roller surface after rolling, plate
Surface roughness increases with the increase of roll surface roughness.Aluminum alloy material surface is in natural environment or heat treatment condition
It is lower to react with oxygen, form layer oxide film or MULTILAYER COMPOSITE oxide-film.Fine aluminium can form one layer 1 in natural environment lower surface
The alundum (Al2O3) of ~ 3nm thickness.Aluminium alloy forms complex oxide film in hot forming or heat treatment process, is added in aluminium alloy
Alloying element make its surface oxidation characteristic otherwise varied.Magnalium aluminium alloy heats in atmosphere can form answering rich in magnesia
Close oxide-film, thickness of oxidation film and crisp, its thickness and form are determined by alloying component and oxidizing condition, different-thickness form it is oxygen-enriched
Change magnesium complex oxide film and show different degrees of dark dull colour.
Surface color dimness often occurs, with batch material in the aluminum alloy materials of its preparation process production of the prior art
Expect the shortcomings of surface color uniformity is unstable, different batches material surface colour consistency is unstable.
The content of the invention
The present invention provides a kind of tank body aluminum alloy coiled materials preparation method, can meet tank meeting Mechanical Properties of Aluminum Alloys
Under the premise of car manufactory design requirement, product surface brightness is improved, reduces the lateral surfaces aberration such as wide volume/plate, is reduced
The surface chromatic aberration of different batches volume/plate.
To reach above-mentioned purpose, of the invention adopts the following technical scheme that：
Tank body aluminum alloy coiled materials preparation method, it is characterised in that include following steps：
（One）Cast ingot casting：Cast aluminium alloy gold ingot casting, the component of the aluminium alloy melt for casting the aluminium alloy cast ingot
And percentage by weight is：Mg：2.5 ~ 3.5%, Mn：0.2 ~ 0.8%, Si：≤ 0.3%, Cr：≤ 0.2%, Cu：≤ 0.2%, Fe：≤
0.3%, Zn：≤ 0.2%, Ti：≤ 0.1%, remaining is Al and inevitable impurity element；Two are carried out to the aluminium alloy melt
After level degasification, the processing of three-level slag removal and purification, the aluminium alloy cast ingot, the aluminium alloy are cast using heat top semicontinuous casting technique
1500 ~ 2650mm of ingot casting width；
（Two）Hot rolling：The aluminium alloy cast ingot is preheated, the coiled base of hot rolling after the aluminium alloy cast ingot preheating, hot rolling
Working roll roughness is 0.8 ~ 1.4 μm, and the thickness of the volume base is reserved with the reserved thickness of 5 ~ 30% cold processing ratio；
（Three）Cold rolling：The volume base is subjected to cold rolling, using multi- pass rolling technique, blooming pass working roll roughness is
0.2 ~ 0.6 μm, cold rolling coil is obtained after cold rolling；
（Four）Rewinding cleans：The cold-rolled lubricating oil of the cold rolling coil surface attachment is cleaned up, cleaning removes cold-rolled lubricating oil at the same time
The aluminium skimmings of surface attachment are washed from into strip surface, after cleaning oil volatilization totally, strip surface free from admixture residual；
（Five）Finished products：The cold rolling coil is subjected to finished products, annealing makees protection atmosphere using inert gas, anneals
Temperature is 90 ~ 360 DEG C, and soaking time is 3 ~ 10h, and annealing volume is obtained after annealing；
（Six）Light rolling：The annealing volume is subjected to bright rolling process, first carries out the bright processing of wet type, working modulus is
0.5 ~ 2%, working roll roughness is 0.05 ~ 0.2 μm, then carries out the bright processing of dry type, and working modulus is 0.1 ~ 0.5%, and working roll is thick
Rugosity is 0.03 ~ 0.10 μm, and aluminum alloy coiled materials are obtained after light rolling.
Further, step（Two）After hot rolling, the step of volume base is subjected to intermediate annealing is further included, wherein described
The annealing temperature of intermediate annealing is 300 ~ 380 DEG C, and soaking time is 3 ~ 8h.
Further, step（One）Cast in ingot casting, the component of the aluminium alloy melt for casting the aluminium alloy cast ingot
And percentage by weight is：Mg：2.5 ~ 3%, Mn：0.3 ~ 0.6%, Si：≤ 0.3%, Cr：≤ 0.2%, Cu：≤ 0.2%, Fe：≤ 0.3%,
Zn：≤ 0.2%, Ti：≤ 0.1%, remaining is Al.
Further, step（Two）In hot rolling, Heat Working Rolls roughness is 1 ~ 1.2 μm.
Further, step（Three）In cold rolling, the working roll roughness of the final passes of the multi- pass rolling is
0.2~0.4μm。
Further, step（Five）In finished products, annealing temperature is 90 ~ 180 DEG C, and soaking time is 3 ~ 6h.
Further, step（Six）In light rolling, the working roll roughness of the bright processing of the wet type is 0.1 ~ 0.18 μ
M, the working roll roughness of the bright processing of dry type is 0.03 ~ 0.08 μm.
Further, step（Two）In hot rolling, finishing temperature is 260 ~ 350 DEG C.
Further, step（Three）In cold rolling, the working roll roughness of the final passes of the multi- pass rolling is
0.22~0.30μm。
Further, step（Six）In light rolling, the working roll roughness of the bright processing of the wet type is 0.12 ~ 0.16
μm, the working roll roughness of the bright processing of dry type is 0.03 ~ 0.06 μm.
If Mg constituent contents are more than 3.5% in aluminium alloy, which forms thicker on finished products, cooling procedure surface
Oxygen enrichment magnesium complex oxide film, light roll when, complex oxide film cannot completely be destroyed by roll and peeled off with ROLLING OIL
Go out strip surface, therefore Mg constituent contents are less than 3.5% in aluminium alloy disclosed by the invention.
Rolled in cold rolling using 0.2 ~ 0.6 μm of roughness, coiled material surface can be made equably to obtain work roll surface
Micro-geometrical structure, high-quality base material is provided for light rolling.
As coiled material surface remains more impurity, residual impurity can form covalent bond with aluminum substrate in annealing process, in light
During rolling, covalent bond cannot be destroyed completely by working roll, and residual impurity will continue to be attached to strip surface, reduce finished surface light
Damp degree, therefore need to carry out rewinding cleaning after cold rolling.
During finished products, protected using inert gas, if nitrogen is as protective atmosphere, Control for Oxygen Content exists in furnace gas
Extremely low level（＜ 0.1%）, the production of strip surface oxide can be suppressed, the thickness of oxygen enrichment magnesium complex oxide film can be controlled.
Using wet type bright treatment method, the mill effect of rolling of working roll can be utilized to destroy coiled material surface complex oxide film,
The oxide-film impurity crushed using oil flushing coiled material surface is rolled, corresponding microcosmic geometry knot is obtained using working roll photocopying principle
Structure surface.Using dry type bright treatment method, the photocopying principle of working roll can be further played, is dramatically obtained corresponding
The corresponding geometry surface of working roll.
Compared with prior art, the beneficial effects of the invention are as follows：Tank body provided by the invention aluminum alloy coiled materials preparation side
Method, includes casting ingot casting, hot rolling, cold rolling, rewinding cleaning, finished products and bright rolling, passes through this new work
Skill preparation process and rational parameter setting, before tank car manufactory design requirement can be met meeting Mechanical Properties of Aluminum Alloys
Put, improve product surface brightness, reduce the lateral surfaces aberration such as wide volume/plate, reduce the table of different batches volume/plate
Complexion is poor.The present invention can remove the processes such as subsequent chemistry polishing from, save later stage surface treatment cost.Given birth to traditional aluminum alloy coiled materials
Production scheme is compared, and present invention process can produce the tank car tank body aluminum alloy coiled materials with glossy surface, meet tank car manufactory
Further mitigate tank weight and tank car client to tank car cosmetic requirements.
Embodiment
The technical solution in the embodiment of the present invention will be clearly and completely described below.Obviously, described implementation
Example is only part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without creative efforts, belong to the model that the present invention protects
Enclose.
Embodiment 1
Embodiment 1 provides a kind of method by conventionally produced almag coiled material.
Step（One）：By conventional aluminum magnesium alloy component melting, after deaerated, filtering, semi-continuous casting is carried out, casts out width
For the slab ingot of 2650mm.
Step（Two）：Slab ingot is subjected to crop end and milling surface treatment.
Step（Three）：Slab ingot is subjected to the coiled base of hot rolling, hot rolling finishing temperature is 260 DEG C, and volume base thickness is 6mm.
Step（Four）：Volume base is made annealing treatment, annealing temperature is 180 DEG C, soaking time 10h.Obtained after annealing
Final coiled material.
Embodiment 2
Embodiment 2 provides a kind of tank body aluminum alloy coiled materials preparation method disclosed by the invention, includes following steps：
（One）Cast ingot casting：Cast aluminium alloy gold ingot casting, the component and again for the aluminium alloy melt of cast aluminium alloy gold ingot casting
Measuring percentage is：Mg：3%, Mn：0.5%, Si：0.2%, Cr：0.2%, Cu：0.1%, Fe：0.2%, Zn：0.2%, Ti：0.1%, remaining
For Al and inevitable impurity element；After two level degasification, the processing of three-level slag removal and purification are carried out to aluminium alloy melt, pushed up using heat
Semicontinuous casting technique cast aluminium alloy gold ingot casting, aluminium alloy cast ingot width 2650mm, ingot casting type are slab ingot.
（Two）Hot rolling：Aluminium alloy cast ingot is preheated, the coiled base of hot rolling after aluminium alloy cast ingot preheating, Heat Working Rolls are thick
Rugosity be 1.0 μm, roll up base thickness be reserved with 13% cold processing ratio reserved thickness；Hot rolling finishing temperature is 280 DEG C, heat
It is 7mm that base thickness is rolled up after rolling；After hot rolling, volume base is subjected to intermediate annealing, the annealing temperature of intermediate annealing is 340 DEG C, insulation
Time is 8h.
（Three）Cold rolling：Volume base is subjected to cold rolling, using two passage rolling mill practices, blooming pass working roll roughness is 0.4 μ
M, the second passage（Final pass）Working roll roughness is 0.22 μm, and cold rolling coil is obtained after cold rolling.
（Four）Rewinding cleans：The cold-rolled lubricating oil of cold rolling coil surface attachment is cleaned up, cleaning removes cold-rolled lubricating oil at the same time by table
The aluminium skimmings of face attachment wash from strip surface, after cleaning oil volatilization totally, strip surface free from admixture residual.
（Five）Finished products：Cold rolling coil is subjected to finished products, annealing is made protection atmosphere using inert gas, made with nitrogen
For protective atmosphere, Control for Oxygen Content is in the level of ＜ 0.1% in furnace gas, and annealing temperature is 120 DEG C, soaking time 5h, after annealing
Obtain annealing volume.
（Six）Light rolling：Annealing is rolled up and carries out bright rolling process, first carries out the bright processing of wet type, working modulus is
0.8%, working roll roughness is 0.12 μm, then carries out the bright processing of dry type, and working modulus 0.3%, working roll roughness is 0.07 μ
M, aluminum alloy coiled materials are obtained after light rolling.
Embodiment 3
Embodiment 3 provides a kind of tank body aluminum alloy coiled materials preparation method disclosed by the invention, includes following steps：
（One）Cast ingot casting：Cast aluminium alloy gold ingot casting, the component and again for the aluminium alloy melt of cast aluminium alloy gold ingot casting
Measuring percentage is：Mg：2.5%, Mn：0.2%, Si：0.1%, Cr：0.1%, Cu：0.1%, Fe：0.2%, Zn：0.2%, Ti：0.1%, its
Remaining is Al and inevitable impurity element；After two level degasification, the processing of three-level slag removal and purification are carried out to aluminium alloy melt, using heat
Semicontinuous casting technique cast aluminium alloy gold ingot casting is pushed up, aluminium alloy cast ingot width 1500mm, ingot casting type is slab ingot.
（Two）Hot rolling：Aluminium alloy cast ingot is preheated, the coiled base of hot rolling after aluminium alloy cast ingot preheating, Heat Working Rolls are thick
Rugosity be 1.0 μm, roll up base thickness be reserved with 5% cold processing ratio reserved thickness；Hot rolling finishing temperature is 280 DEG C, hot rolling
It is 7mm to roll up base thickness afterwards.
（Three）Cold rolling：Volume base is subjected to cold rolling, using two passage rolling mill practices, blooming pass working roll roughness is 0.3 μ
M, the second passage（Final pass）Working roll roughness is 0.25 μm, and cold rolling coil is obtained after cold rolling.
（Four）Rewinding cleans：The cold-rolled lubricating oil of cold rolling coil surface attachment is cleaned up, cleaning removes cold-rolled lubricating oil at the same time by table
The aluminium skimmings of face attachment wash from strip surface, after cleaning oil volatilization totally, strip surface free from admixture residual.
（Five）Finished products：Cold rolling coil is subjected to finished products, annealing is made protection atmosphere using inert gas, made with nitrogen
For protective atmosphere, Control for Oxygen Content is in the level of ＜ 0.1% in furnace gas, and annealing temperature is 90 DEG C, soaking time 6h, after annealing
Obtain annealing volume.
（Six）Light rolling：Annealing is rolled up and carries out bright rolling process, first carries out the bright processing of wet type, working modulus is
0.5%, working roll roughness is 0.05 μm, then carries out the bright processing of dry type, and working modulus 0.1%, working roll roughness is 0.03 μ
M, aluminum alloy coiled materials are obtained after light rolling.
Embodiment 4
Embodiment 4 provides a kind of tank body aluminum alloy coiled materials preparation method disclosed by the invention, includes following steps：
（One）Cast ingot casting：Cast aluminium alloy gold ingot casting, the component and again for the aluminium alloy melt of cast aluminium alloy gold ingot casting
Measuring percentage is：Mg：3.5%, Mn：0.8%, Si：0.3%, Cr：0.2%, Cu：0.2%, Fe：0.3%, Zn：0.2%, Ti：0.1%, its
Remaining is Al and inevitable impurity element；After two level degasification, the processing of three-level slag removal and purification are carried out to aluminium alloy melt, using heat
Semicontinuous casting technique cast aluminium alloy gold ingot casting is pushed up, aluminium alloy cast ingot width 2650mm, ingot casting type is slab ingot.
（Two）Hot rolling：Aluminium alloy cast ingot is preheated, the coiled base of hot rolling after aluminium alloy cast ingot preheating, Heat Working Rolls are thick
Rugosity be 1.4 μm, roll up base thickness be reserved with 30% cold processing ratio reserved thickness；Hot rolling finishing temperature is 280 DEG C, heat
It is 7mm that base thickness is rolled up after rolling.
（Three）Cold rolling：Volume base is subjected to cold rolling, using two passage rolling mill practices, blooming pass working roll roughness is 0.6 μ
M, the second passage（Final pass）Working roll roughness is 0.3 μm, and cold rolling coil is obtained after cold rolling.
（Four）Rewinding cleans：The cold-rolled lubricating oil of cold rolling coil surface attachment is cleaned up, cleaning removes cold-rolled lubricating oil at the same time by table
The aluminium skimmings of face attachment wash from strip surface, after cleaning oil volatilization totally, strip surface free from admixture residual.
（Five）Finished products：Cold rolling coil is subjected to finished products, annealing is made protection atmosphere using inert gas, made with nitrogen
For protective atmosphere, Control for Oxygen Content is in the level of ＜ 0.1% in furnace gas, and annealing temperature is 250 DEG C, soaking time 5h, after annealing
Obtain annealing volume.
（Six）Light rolling：Annealing is rolled up and carries out bright rolling process, first the bright processing of progress wet type, working modulus 2%,
Working roll roughness is 0.2 μm, then carries out the bright processing of dry type, and working modulus 0.5%, working roll roughness is 0.08 μm, bright
Aluminum alloy coiled materials are obtained after rolling.
Embodiment 5
Embodiment 5 provides a kind of tank body aluminum alloy coiled materials preparation method disclosed by the invention, includes following steps：
（One）Cast ingot casting：Cast aluminium alloy gold ingot casting, the component and again for the aluminium alloy melt of cast aluminium alloy gold ingot casting
Measuring percentage is：Mg：2.5%, Mn：0.3%, Si：0.2%, Cr：0.2%, Cu：0.1%, Fe：0.2%, Zn：0.2%, Ti：0.1%, its
Remaining is Al and inevitable impurity element；After two level degasification, the processing of three-level slag removal and purification are carried out to aluminium alloy melt, using heat
Semicontinuous casting technique cast aluminium alloy gold ingot casting is pushed up, aluminium alloy cast ingot width 2650mm, ingot casting type is slab ingot.
（Two）Hot rolling：Aluminium alloy cast ingot is preheated, the coiled base of hot rolling after aluminium alloy cast ingot preheating, Heat Working Rolls are thick
Rugosity be 0.8 μm, roll up base thickness be reserved with 13% cold processing ratio reserved thickness；Hot rolling finishing temperature is 260 DEG C, heat
It is 7mm that base thickness is rolled up after rolling；After hot rolling, volume base is subjected to intermediate annealing, the annealing temperature of intermediate annealing is 330 DEG C, insulation
Time is 8h.
（Three）Cold rolling：Volume base is subjected to cold rolling, using two passage rolling mill practices, blooming pass working roll roughness is 0.2 μ
M, the second passage（Final pass）Working roll roughness is 0.22 μm, and cold rolling coil is obtained after cold rolling.
（Four）Rewinding cleans：The cold-rolled lubricating oil of cold rolling coil surface attachment is cleaned up, cleaning removes cold-rolled lubricating oil at the same time by table
The aluminium skimmings of face attachment wash from strip surface, after cleaning oil volatilization totally, strip surface free from admixture residual.
（Five）Finished products：Cold rolling coil is subjected to finished products, annealing is made protection atmosphere using inert gas, made with nitrogen
For protective atmosphere, Control for Oxygen Content is in the level of ＜ 0.1% in furnace gas, and annealing temperature is 360 DEG C, soaking time 3h, after annealing
Obtain annealing volume.
（Six）Light rolling：Annealing is rolled up and carries out bright rolling process, first carries out the bright processing of wet type, working modulus is
0.8%, working roll roughness is 0.1 μm, then carries out the bright processing of dry type, and working modulus 0.3%, working roll roughness is 0.06 μ
M, aluminum alloy coiled materials are obtained after light rolling.
Embodiment 6
Embodiment 6 provides a kind of tank body aluminum alloy coiled materials preparation method disclosed by the invention, includes following steps：
（One）Cast ingot casting：Cast aluminium alloy gold ingot casting, the component and again for the aluminium alloy melt of cast aluminium alloy gold ingot casting
Measuring percentage is：Mg：3%, Mn：0.6%, Si：0.3%, Cr：0.2%, Cu：0.2%, Fe：0.3%, Zn：0.2%, Ti：0.1%, remaining
For Al and inevitable impurity element；After two level degasification, the processing of three-level slag removal and purification are carried out to aluminium alloy melt, pushed up using heat
Semicontinuous casting technique cast aluminium alloy gold ingot casting, aluminium alloy cast ingot width 2650mm, ingot casting type are slab ingot.
（Two）Hot rolling：Aluminium alloy cast ingot is preheated, the coiled base of hot rolling after aluminium alloy cast ingot preheating, Heat Working Rolls are thick
Rugosity be 1.2 μm, roll up base thickness be reserved with 13% cold processing ratio reserved thickness；Hot rolling finishing temperature is 280 DEG C, heat
It is 7mm that base thickness is rolled up after rolling；After hot rolling, volume base is subjected to intermediate annealing, the annealing temperature of intermediate annealing is 380 DEG C, insulation
Time is 6h.
（Three）Cold rolling：Volume base is subjected to cold rolling, using two passage rolling mill practices, blooming pass working roll roughness is 0.2 μ
M, the second passage（Final pass）Working roll roughness is 0.3 μm, and cold rolling coil is obtained after cold rolling.
（Four）Rewinding cleans：The cold-rolled lubricating oil of cold rolling coil surface attachment is cleaned up, cleaning removes cold-rolled lubricating oil at the same time by table
The aluminium skimmings of face attachment wash from strip surface, after cleaning oil volatilization totally, strip surface free from admixture residual.
（Five）Finished products：Cold rolling coil is subjected to finished products, annealing is made protection atmosphere using inert gas, made with nitrogen
For protective atmosphere, Control for Oxygen Content is in the level of ＜ 0.1% in furnace gas, and annealing temperature is 180 DEG C, soaking time 10h, annealing
Annealing volume is obtained afterwards.
（Six）Light rolling：Annealing is rolled up and carries out bright rolling process, first carries out the bright processing of wet type, working modulus is
0.8%, working roll roughness is 0.12 μm, then carries out the bright processing of dry type, and working modulus 0.3%, working roll roughness is 0.1 μ
M, aluminum alloy coiled materials are obtained after light rolling.
It will be contrasted below by product of the present invention and each mechanical property parameters of existing product（As shown in table 1）, furtherly
The beneficial effect of bright product of the present invention.
1 product of the present invention of table and each mechanical property parameters contrast table of existing product
In upper table, Sample A is obtained by the method using embodiment 1, and sample B is ASTM obtained by the method using embodiment 2
B209 represents American Society Testing and Materials（American Society for Testing and Materials, ASTM）System
Fixed aluminium and aluminium alloy sheet and cut deal technical specification.From table 1 it follows that Sample A and sample B have reached ASTM
B209 technical specification standards, using the mechanical property of sample B made from the method for embodiment 2 than the method using embodiment 1
The mechanical property of obtained Sample A is on close level, the tensile strength of sample B（Rm）It is slightly less than the tensile strength of Sample A, and is marking
Disproportional elongation away from part reaches stress during original gauge length 0.2%（Rp0.2）And elongation after fracture（A）Aspect, sample B are equal
Slightly better than Sample A；In surface brightness index, sample B is better than Sample A.As can be known from Table 1, tank provided by the invention
Aluminium alloy prepared by body aluminum alloy coiled materials preparation method is meeting that Mechanical Properties of Aluminum Alloys meets tank car manufactory design requirement
Under the premise of, it is possible to increase product surface brightness, reduces the lateral surfaces aberration such as wide volume/plate, reduces different batches volume/plate
The surface chromatic aberration of material.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should using the scope of the claims as
It is accurate.
Claims (9)
1. tank body aluminum alloy coiled materials preparation method, it is characterised in that include following steps：
（One）Cast ingot casting：Cast aluminium alloy gold ingot casting, the component and again for the aluminium alloy melt that casts the aluminium alloy cast ingot
Measuring percentage is：Mg：2.5 ~ 3.5%, Mn：0.2 ~ 0.8%, Si：≤ 0.3%, Cr：≤ 0.2%, Cu：≤ 0.2%, Fe：≤ 0.3%,
Zn：≤ 0.2%, Ti：≤ 0.1%, remaining is Al and inevitable impurity element；Two level is carried out to the aluminium alloy melt to remove
After gas, the processing of three-level slag removal and purification, the aluminium alloy cast ingot, the aluminium alloy cast ingot are cast using heat top semicontinuous casting technique
1500 ~ 2650mm of width；
（Two）Hot rolling：The aluminium alloy cast ingot is preheated, the coiled base of hot rolling after the aluminium alloy cast ingot preheating, hot rolling work
Roller roughness is 0.8 ~ 1.4 μm, and the thickness of the volume base is reserved with the reserved thickness of 5 ~ 30% cold processing ratio；
（Three）Cold rolling：The volume base is subjected to cold rolling, using multi- pass rolling technique, blooming pass working roll roughness for 0.2 ~
0.6 μm, the working roll roughness of final passes is 0.2 ~ 0.4 μm, and cold rolling coil is obtained after cold rolling；
（Four）Rewinding cleans：The cold-rolled lubricating oil of the cold rolling coil surface attachment is cleaned up, cleaning removes cold-rolled lubricating oil at the same time by table
The aluminium skimmings of face attachment wash from strip surface, after cleaning oil volatilization totally, strip surface free from admixture residual；
（Five）Finished products：The cold rolling coil is subjected to finished products, annealing makees protection atmosphere, annealing temperature using inert gas
For 90 ~ 360 DEG C, soaking time is 3 ~ 10h, and annealing volume is obtained after annealing；
（Six）Light rolling：The annealing volume is subjected to bright rolling process, first carries out the bright processing of wet type, working modulus for 0.5 ~
2%, working roll roughness is 0.05 ~ 0.2 μm, then carries out the bright processing of dry type, and working modulus is 0.1 ~ 0.5%, working roll roughness
For 0.03 ~ 0.10 μm, aluminum alloy coiled materials are obtained after light rolling.
2. tank body according to claim 1 aluminum alloy coiled materials preparation method, it is characterised in that：Step（Two）Hot rolling it
Afterwards, the step of volume base is subjected to intermediate annealing is further included, wherein the annealing temperature of the intermediate annealing is 300 ~ 380 DEG C,
Soaking time is 3 ~ 8h.
3. tank body according to claim 1 aluminum alloy coiled materials preparation method, it is characterised in that：Step（One）Cast ingot casting
In, component and percentage by weight for the aluminium alloy melt that casts the aluminium alloy cast ingot are：Mg：2.5 ~ 3%, Mn：0.3~
0.6%, Si：≤ 0.3%, Cr：≤ 0.2%, Cu：≤ 0.2%, Fe：≤ 0.3%, Zn：≤ 0.2%, Ti：≤ 0.1%, remaining is Al.
4. tank body according to claim 1 aluminum alloy coiled materials preparation method, it is characterised in that：Step（Two）In hot rolling,
Heat Working Rolls roughness is 1 ~ 1.2 μm.
5. tank body according to claim 1 aluminum alloy coiled materials preparation method, it is characterised in that：Step（Five）Finished products
In, annealing temperature is 90 ~ 180 DEG C, and soaking time is 3 ~ 6h.
6. tank body according to claim 1 aluminum alloy coiled materials preparation method, it is characterised in that：Step（Six）Light rolling
In, the working roll roughness of the bright processing of the wet type is 0.1 ~ 0.18 μm, and the working roll roughness of the bright processing of dry type is
0.03~0.08μm。
7. tank body according to claim 1 aluminum alloy coiled materials preparation method, it is characterised in that：Step（Two）In hot rolling,
Finishing temperature is 260 ~ 350 DEG C.
8. tank body according to claim 1 aluminum alloy coiled materials preparation method, it is characterised in that：Step（Three）In cold rolling,
The working roll roughness of the final passes of the multi- pass rolling is 0.22 ~ 0.30 μm.
9. tank body according to claim 6 aluminum alloy coiled materials preparation method, it is characterised in that：Step（Six）Light rolling
In, the working roll roughness of the bright processing of the wet type is 0.12 ~ 0.16 μm, and the working roll roughness of the bright processing of dry type is
0.03~0.06μm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064439.6A CN106756671B (en) | 2016-11-28 | 2016-11-28 | Tank body aluminum alloy coiled materials preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611064439.6A CN106756671B (en) | 2016-11-28 | 2016-11-28 | Tank body aluminum alloy coiled materials preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106756671A CN106756671A (en) | 2017-05-31 |
| CN106756671B true CN106756671B (en) | 2018-05-01 |
Family
ID=58901856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611064439.6A Active CN106756671B (en) | 2016-11-28 | 2016-11-28 | Tank body aluminum alloy coiled materials preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106756671B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739924B (en) * | 2017-11-14 | 2019-07-12 | 中铝东南材料院（福建）科技有限公司 | A kind of new-energy automobile vacuum booster shell aluminium alloy strips and preparation method |
| CN108642344B (en) * | 2018-05-30 | 2020-03-31 | 乳源东阳光优艾希杰精箔有限公司 | Preparation method of aluminum alloy for aerosol bottle cap |
| CN109055788A (en) * | 2018-09-18 | 2018-12-21 | 天津忠旺铝业有限公司 | A kind of preparation process eliminating 5 line aluminium alloy plate surface bands |
| CN109468554B (en) * | 2018-11-19 | 2020-12-01 | 广西柳州银海铝业股份有限公司 | Method for eliminating white spot of cold-rolled aluminum coil edge annealing |
| CN109554559A (en) * | 2018-12-05 | 2019-04-02 | 天津忠旺铝业有限公司 | A kind of preparation method of 5754 aluminum alloy plate materials of automobile |
| CN111141772A (en) * | 2019-09-17 | 2020-05-12 | 闽南理工学院 | Preparation method of pure aluminum alloy EBSD sample |
| CN113957304B (en) * | 2021-09-29 | 2022-10-28 | 河南泰鸿新材料有限公司 | Preparation method of 5052 aluminum alloy sheet |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05271836A (en) * | 1992-03-30 | 1993-10-19 | Furukawa Alum Co Ltd | Aluminum alloy material excellent in strength and ductility and its production |
| JPH05271835A (en) * | 1992-03-30 | 1993-10-19 | Furukawa Alum Co Ltd | Aluminum alloy material excellent in strength and ductility and its production |
| EP0599696B1 (en) * | 1992-11-17 | 1996-07-03 | The Furukawa Electric Co., Ltd. | Process for manufacturing aluminum alloy sheets excellent in strength and deep drawing formability |
| JPH09165639A (en) * | 1995-12-15 | 1997-06-24 | Nippon Steel Corp | Aluminum alloy sheet for fuel tank and its production |
| JP2012092431A (en) * | 2010-09-30 | 2012-05-17 | Kobe Steel Ltd | Aluminum alloy cold-rolled sheet for bottle can |
| JP5848694B2 (en) * | 2012-12-27 | 2016-01-27 | 株式会社神戸製鋼所 | Aluminum alloy plate for DI can body |
| CN103014445B (en) * | 2012-12-27 | 2014-11-26 | 亚洲铝业（中国）有限公司 | 5052 aluminum alloy end stock substrate and production method thereof |
-
2016
- 2016-11-28 CN CN201611064439.6A patent/CN106756671B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106756671A (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106756671B (en) | Tank body aluminum alloy coiled materials preparation method | |
| KR101624116B1 (en) | High-strength aluminum alloy and method for producing same | |
| JP5728580B2 (en) | Aluminum alloy plate and method for producing aluminum alloy plate | |
| JP5158675B2 (en) | Magnesium alloy sheet material excellent in corrosion resistance and surface treatment and method for producing the same | |
| JP2010156007A (en) | Magnesium-alloy sheet excellent in corrosion resistance and surface treatability, and method for producing the same | |
| JP5920723B2 (en) | Aluminum-magnesium alloy and its alloy plate | |
| JP6176393B2 (en) | High-strength aluminum alloy plate with excellent bending workability and shape freezing property | |
| WO2018117521A1 (en) | Magnesium alloy sheet and manufacturing method thereof | |
| JP2008156710A (en) | Aluminum alloy sheet for cap, and its manufacturing method | |
| KR20150047246A (en) | Method for manufacturing of Al-Zn-Mg-Cu alloy sheet with refined crystal grains | |
| JP6249435B2 (en) | Aluminum-zinc alloy extruded material and method for producing the same | |
| JP7414453B2 (en) | Aluminum alloy material and its manufacturing method | |
| JPS61110744A (en) | Al alloy plate for packing and its manufacture | |
| JP6857535B2 (en) | High-strength aluminum alloy plate with excellent formability, bendability and dent resistance and its manufacturing method | |
| KR101757733B1 (en) | Method for manufacturing of Al-Zn-Mg-Cu alloy sheet with refined crystal grains | |
| JP4846457B2 (en) | Manufacturing method of aluminum alloy plate for caps with excellent bending workability | |
| TW201814088A (en) | Aluminum alloy sheet and anodized aluminum alloy sheet capable of suppressing a decrease in glossiness after performing an anodizing treatment, and exerting an excellent workability | |
| WO2014175228A1 (en) | Aluminum alloy plate and method for manufacturing same | |
| JP7432352B2 (en) | Aluminum alloy plate for cap material and its manufacturing method | |
| KR20150042099A (en) | Method for manufacturing of Al-Zn-Cu-Mg alloy sheet and Al-Zn-Cu-Mg alloy sheet thereby | |
| JP3808276B2 (en) | Aluminum alloy foil and method for producing the same | |
| JP2858068B2 (en) | Light-colored thick aluminum alloy rolled sheet for building materials with stable color tone after anodizing and method for producing the same | |
| JP5080150B2 (en) | Manufacturing method of aluminum alloy plate for high-strength cap with excellent openability and ear rate | |
| KR20160091863A (en) | Method for manufacturing of Al-Zn-Cu-Mg alloy sheet and Al-Zn-Cu-Mg alloy sheet thereby | |
| JPH11277104A (en) | Manufacture of copper-containing austenitic stainless steel strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Chengyi Inventor after: Deng Songyun Inventor after: Zhao Qisong Inventor after: Ren Yuelu Inventor after: Hu Chuanbin Inventor after: Wang Huachun Inventor after: Deng Guiying Inventor after: Qin Shan Inventor after: Cao Shengqiang Inventor before: Huang Chengyi Inventor before: Cao Shengqiang Inventor before: Deng Songyun Inventor before: Zhao Qisong Inventor before: Ren Yuelu Inventor before: Hu Chuanbin Inventor before: Wang Huachun |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |