CN108384998A - 3003 alloy half-hard state Strip processing technologys - Google Patents
3003 alloy half-hard state Strip processing technologys Download PDFInfo
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- CN108384998A CN108384998A CN201810413508.2A CN201810413508A CN108384998A CN 108384998 A CN108384998 A CN 108384998A CN 201810413508 A CN201810413508 A CN 201810413508A CN 108384998 A CN108384998 A CN 108384998A
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 46
- 239000000956 alloy Substances 0.000 title claims abstract description 46
- 238000012545 processing Methods 0.000 title claims abstract description 44
- 238000005516 engineering process Methods 0.000 title claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- 238000005097 cold rolling Methods 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 238000000137 annealing Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000009749 continuous casting Methods 0.000 claims abstract description 9
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 238000005275 alloying Methods 0.000 claims description 22
- 239000004411 aluminium Substances 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 15
- 238000007670 refining Methods 0.000 claims description 15
- 238000003723 Smelting Methods 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000011777 magnesium Substances 0.000 claims description 12
- 229910052749 magnesium Inorganic materials 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 9
- 241000220317 Rosa Species 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 239000011572 manganese Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical group [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000036316 preload Effects 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 3
- 239000010731 rolling oil Substances 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 238000007872 degassing Methods 0.000 claims description 2
- 238000007499 fusion processing Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000010008 shearing Methods 0.000 claims description 2
- 238000009966 trimming Methods 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 3
- 238000003672 processing method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 229910001334 3003 aluminium alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- 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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B2003/001—Aluminium or its alloys
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Continuous Casting (AREA)
- Metal Rolling (AREA)
Abstract
The present invention provides 3003 alloy half-hard state Strip processing technologys, is related to cold rolling processing technique field.It is related to 3003 alloy half-hard state Strip processing technologys, includes the processing method for using melting, continuous casting and rolling, cold rolling, annealing, carry out the melting and cold rolling of aluminium alloy, entire production procedure is short, and processing cost is low；The blank being processed into, tensile strength and elongation percentage etc. are functional, tensile strength >=160Mpa, elongation percentage >=7%, and product vertical, horizontal bending flawless can meet aluminum luggage, cabinet and part stamping products demand.
Description
Technical field
The present invention relates to cold rolling processing technique fields, more particularly, to 3003 alloy half-hard state Strip processing technologys.
Background technology
Aluminium is the metallic element that content is most abundant in the earth's crust, and content accounts for about the 8.8% of earth's crust gross mass.Nature
Aluminium is all that compound form exists, and 70% or so of the aluminium in the earth's crust is to be present in nature in the form of AL2O3.AL2O3 is passed through
Metallic aluminium can be produced after electrolysis.
The density of aluminium is small, about the 1/3 of iron, has very high plasticity, easy to process, can be made into various proximate matters and plate
Material, corrosion resistance are good.The intensity of simple aluminium is low, only by adding certain alloying element and unique processing technology and heat
The methods of processing is strengthened.
Aluminium and aluminium alloy are most widely used one kind non-ferrous metal structural materials in industry, Aeronautics and Astronautics, automobile,
It has been widely applied in machine-building, ship and chemical engineering industry, daily necessities.Product is widely used in packing business, traffic fortune
Defeated industry, construction industry.
3003 aluminium alloys, which can be used for processing, needs the good Components of good forming property, high corrosion stability solderability
Part, or not only required these performances but also needed the work higher than 1XXX systems alloy strength, at kitchen tools, food and chemical products
Reason and storage facility, transport slot, the tank of fluid product, with the various pressure vessel and pipings of thin plate processing, proximate matter.
But with the further promotion required properties of product, 3003 alloy plate strip conventional machining modes cannot be satisfied
Social demand.
In consideration of it, to obtain 3003 alloy half-hard state Strips of high intensity, high ductibility, there is an urgent need for a kind of novel processing works
Skill.
The information for being disclosed in the background technology part is merely intended to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Invention content
The first object of the present invention is to provide a kind of 3003 alloy half-hard state Strip processing technologys, by the alloy
Mg elements are added, to improve its tensile strength；By increasing the additive amount of Al-5Ti-B crystal grain refinement line bars, improve casting
The internal organizational structure of product improves its mechanical performance；By improve cold-rolling process, cancel conventional intermediate annealing, using at
Product are annealed, and by accurately controlling annealing temperature, achieve the purpose that control finished product mechanical performance.
A kind of 3003 alloy half-hard state Strip processing technology provided by the invention, includes the following steps：
Step A：Raw material is chosen, is put into smelting furnace；
Preferably, raw material is aluminium ingot and waste material, wherein amount of waste is no more than the 30% of raw material total amount；
Step B：It heats up to smelting furnace, above-mentioned raw materials is carried out to melting, alloying, refining and stove successively, are obtained
Alloy melt；
Step C：The collocation that alloying element is carried out to the alloy melt that above-mentioned steps B is obtained, to obtain required performance；
Step D：It heats up again to smelting furnace, the processed alloy melt that step C is obtained is stirred and is refined, together
When refining agent is added, skim after refining；
Step E：Magnesium ingot is added after the completion in skimming for above-mentioned steps D,
Preferably, the alloy melt with magnesium ingot is detected, after detection is qualified, it is quiet that furnace charge is gone into standing furnace progress
It sets, surface scum is only taken off in standing furnace；
Step F：The preparation before continuous casting and rolling is carried out, corresponding device parameter and process are set；
Preferably, device parameter and process include charge-temperature, baking Rose Box, connection holding furnace weif orifice to Rose Box
Between chute, making and bast mouth, Casting Roller grinding are installed, roll gap is adjusted, carries out roller surface processing, connection Rose Box to preceding case section
Chute, setting release riser and technological parameter and the normal production casting and rolling machine run parameter of setting；
Step G：Continuous casting and rolling is carried out to the alloy melt that step E is obtained, casting, rolling deformation are realized in roll casting zone,
By through the aluminium alloy melt casting after line crystal grain refinement, degasification, filtering and removing slag at (6.8~7.2) × (1260~1460)
Strip, using shearing, batch as cast-rolling stock；
Step H：Use the cast-rolling stock that cold-rolling mill obtains above-mentioned steps G through multiple processing passes for 1.2mm thickness
After processing passage, low temperature partial annealing is carried out to cold rolling blank for the cold rolling blank of degree.
In any of the above-described technical solution, further, in above-mentioned steps B, it is anti-that aluminium ingot and waste material are added to flame
It penetrates in stove and is melted, repeatedly stirring to bottom material in stove is carried out in fusion process and is stirred evenly, 720 are risen in temperature of smelting furnace~
After 730 DEG C, alloy melt is taken out, carries out constituent analysis.
In any of the above-described technical solution, further, in above-mentioned steps C, alloy is carried out referring in particular to following formula
The collocation of element：
Alloying element/kg=(M- detection levels) * charging weights (ton) * N；
Wherein, M and N is quantitative values；
When alloying element is chalybeate, M=0.5, N=14；When alloying element is copper agent, M=0.1, N=14；Work as conjunction
When gold element is manganese agent, M=1.1, N=14；When alloying element is instant silicon, M=0.25, N=10；When alloying element is
When magnesium ingot, M=0.1, N=10.
In any of the above-described technical solution, further, in above-mentioned steps D, smelting furnace need to be warming up to 740~755 DEG C,
Refining time is 30 minutes, and required refining agent dosage is 30Kg, and argon pressure control is in 0.45Mpa when refining.
In any of the above-described technical solution, further, in above-mentioned steps F, the clearance control of bast mouth and roll exists
Within 0.5mm.
In any of the above-described technical solution, further, in above-mentioned steps F, releases riser and technological parameter includes：It is vertical
Plate preloads：800T/800T, preceding box temperature degree：720~740 DEG C, riser race slag speed：1.6m/min or more, roll casting zone 50~
55mm, operating status bast mouth are away from up/down roller gap-ratio 4: 6.
In any of the above-described technical solution, further, in above-mentioned steps H, cast-rolling stock is successively by following processing
Passage carry out thickness processing, i.e., after 7mm, 4.7mm, 3.1mm, 2.1mm carry out rewinding trimming, then pass through 1.6mm, 1.2mm with
Finished product needed for obtaining, then carries out finished products, i.e. low temperature partial annealing.
In any of the above-described technical solution, further, cold rolling rollcogging-roll is provided in above-mentioned steps H, in cold-rolling mill
And working roll, the roughness of cold rolling rollcogging-roll is Ra0.8 μm；The convexity of working roll is 0.03mm.
In any of the above-described technical solution, further, in above-mentioned steps H, need that rolling is added in cold-rolling mill work
The content of oil additive, rolling oil additives is 7~8%.
In any of the above-described technical solution, further, in above-mentioned steps H, progress finished product is low after processing passage
Warm partial annealing；Preferably, before annealing, temperature measuring equipment need to be installed in aluminium is rolled up；After aluminium is involved in stove, 360 DEG C of stoves of annealing furnace
Gas is kept the temperature, and after metal thermometric reaches 320 DEG C, changes 330 DEG C of heat preservation 4h of furnace gas.
Beneficial effects of the present invention are as follows：
3003 alloy half-hard state Strip processing technology using the present invention, includes the following steps：Step A：Raw material is chosen,
It is put into smelting furnace；Preferably, raw material is aluminium ingot and waste material, wherein amount of waste is no more than the 30% of raw material total amount；Step B：It is right
Smelting furnace heats up, and above-mentioned raw materials are carried out to melting, alloying, refining and stove successively, obtain alloy melt；Step C：
The collocation that alloying element is carried out to the alloy melt that above-mentioned steps B is obtained, to obtain required performance；Step D：Again to smelting furnace
Heating, the processed alloy melt that step C is obtained is stirred and is refined, while refining agent is added, skim after refining；Step
Rapid E：Magnesium ingot is added after the completion in skimming for above-mentioned steps D；Preferably, the alloy melt with magnesium ingot is detected, is detected
After qualification, furnace charge is gone into standing furnace and is stood, surface scum is only taken off in standing furnace；Step F：Before carrying out continuous casting and rolling
Preparation sets corresponding device parameter and process；Preferably, device parameter and process include charge-temperature, baking filtering
Case, connection holding furnace weif orifice to chute, making between Rose Box and install bast mouth, Casting Roller grinding, tune roll gap, progress roll
Surface treatment, connection Rose Box to preceding case section chute, setting release riser and technological parameter and the normal production casting and rolling machine of setting
Run parameter；Step G：Continuous casting and rolling is carried out to the alloy melt that step E is obtained, casting, rolling are realized in roll casting zone
Deformation, by through the aluminium alloy melt casting after line crystal grain refinement, degasification, filtering and removing slag at (6.8~7.2) × (1260~
1460) strip, using shearing, batch as cast-rolling stock；Step H：The casting for being obtained above-mentioned steps G using cold-rolling mill
After processing passage, low temperature is carried out to cold rolling blank through the cold rolling blank that multiple processing passes are 1.2mm thickness for blank
Partial annealing；To sum up, 3003 alloy half-hard state Strip processing technologys of the invention mainly use melting, continuous casting continuous casting, cold
The processing method roll, annealed, entire production procedure is short, and processing cost is low；The property such as the blank being processed into, tensile strength and elongation percentage
Energy is good, tensile strength >=160Mpa, elongation percentage >=7%, and product vertical, horizontal bending flawless can meet aluminum luggage, machine
Cabinet and part stamping products demand.
Specific implementation mode
Technical scheme of the present invention will be clearly and completely described below, it is clear that described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making creative work, shall fall within the protection scope of the present invention.
The description of embodiment is carried out to the technical solution of the 3003 alloy half-hard state Strip processing technologys of the present invention below.
Embodiment
The specific implementation mode of the present embodiment is as follows：
A kind of 3003 alloy half-hard state Strip processing technology provided in this embodiment, includes the following steps：
Step A：It chooses raw material and is put into smelting furnace, is i.e. aluminium ingot and waste material, wherein amount of waste is no more than raw material total amount
30%.
Step B：It heats up to smelting furnace, above-mentioned raw materials is carried out to melting, alloying, refining and stove successively.
Step C：The collocation that alloying element is carried out to the alloy melt that above-mentioned steps B is obtained, to obtain required performance.
It should be noted that in order to obtain the alloy melt of required performance, aluminium ingot and waste material are added to flame reverberatory furnace
In melted, 3~4 stirrings are needed during material；Stirring stirs evenly bottom material in stove, stirs 4~6 minutes,
After smelting furnace temperature rises to 720~730 DEG C, take alloy sample, carry out constituent analysis, and gold conjugate, cooperation gold element include Fe, Cu,
Mn, Si and Mg, it is specific to carry out in fusion process, it needs to be separately added into chalybeate, copper agent, manganese agent, instant silicon and magnesium ingot, it is specific to calculate
Formula is as follows：
Chalybeate/kg=(0.50- detection levels) × charging weight (ton) × 14；
Copper agent/kg=(0.10- detection levels) × charging weight (ton) × 14；
Manganese agent/kg=(1.10- detection levels) × charging weight (ton) × 14；
Instant silicon/kg=(0.25- detection levels) × charging weight (ton) × 10；
Magnesium ingot/kg=(0.10- detection levels) × charging weight (ton) × 10；
It should be noted that：Magnesium ingot, using specific purpose tool, need to be pressed directly into inside molten aluminum after refining is skimmed
Fusing, to avoid burning or exploding.
Step D：It heats up again to smelting furnace, the processed alloy melt that step C is obtained is stirred and is refined, together
When refining agent is added, skim after refining.
It should be noted that needing smelting furnace being warming up to 740~755 DEG C in this step D, stirring, refining：Refining time
30 minutes, required refining agent dosage 30Kg, are added using powder blower, and argon pressure control is in 0.45Mpa when refining, and wants refinement
Refining nozzle is uniformly dragged in furnace bottom.
Step E：Magnesium ingot is added after the completion in skimming for above-mentioned steps D, after taking the detection of alloy sample qualified again, furnace charge is turned
It is stood to standing furnace, in standing furnace without any operation, only takes surface scum off.
Step F：The preparation before continuous casting and rolling is carried out, setting charge-temperature, baking Rose Box, connection holding furnace release
Mouthful to chute between Rose Box, making and bast mouth, Casting Roller grinding are installed, adjust roll gap, carries out roller surface processing, connection filtering
Case to preceding case section chute, setting releases riser and technological parameter and the normal production casting and rolling machine run parameter of setting.
It should be noted that the preparation in this step F before continuous casting and rolling is specially：
One, before riser standing furnace material temperature be set as 780 DEG C, fire box temperature be set as 880 DEG C.
Two, Rose Box is produced using foamed ceramic filter plate filtering production, using 40 mesh and 30 mesh foamed ceramic filter plates；
It is fully toasted 1 hour or so after the 30 mesh dress first order, the 40 mesh second level, filter plate installation.
Three, holding furnace weif orifice is connected to chute between Rose Box.
Four, it makes and bast mouth is installed：Brush does not glue aluminium paint, forward position 15mm ranges, bast mouth opening at mouth piece lip
10mm。
Five, Casting Roller is ground：Roll pre-grinding convexity 0.26mm, gloss level of roll 0.8um.
Six, roll gap is adjusted：When roll gap is adjusted and is checked, it is desirable that roll surface temperature is room temperature.Measure roll gap use 300mm with
The complete straight Al-Ti-B wire rod of upper length measures, and both sides are carried out at the same time, and passes through rolling zone simultaneously with miking
The line bar thickness value in domain be gap values between rollers, roll gap size be 5.2mm.
Seven, after roll gap has adjusted, roller surface processing is carried out：Detergent cleaning roller surface antirust oil is first used, then uses liquid
Change gas and toasts roller surface.
Eight, bast mouth, roll seam control are in 0.5mm.
Nine, Rose Box is connected to preceding case section chute.
Ten, riser and technological parameter are released：Riser preloads：800T/800T, preceding box temperature degree：720~740 DEG C, riser race
Slag speed：1.6m/min or more, 50~55mm of roll casting zone, operating status bast mouth are away from up/down roller gap-ratio 4: 6.
11, casting and rolling machine run parameter is normally produced：Holding furnace material temperature：750 DEG C, preceding box temperature degree：705~710 DEG C；
The speed of rolls：0.80m/min；6kg/ tons of the Al-5Ti-B line bar amount of feeding；Coiling tension：9.0T；Board form data：Camber≤
0.3~1%, longitudinal tolerance≤0.10mm, both sides thickness difference≤0.04mm.
Step G：Continuous casting and rolling is carried out to the alloy melt that step E is obtained, casting, rolling deformation are realized in roll casting zone,
By through the aluminium alloy melt casting after line crystal grain refinement, degasification, filtering and removing slag at (6.8~7.2) × (1260~1460)
Strip, using shearing, batch as cast-rolling stock.
Step H：Use the cast-rolling stock that cold-rolling mill obtains above-mentioned steps G through multiple processing passes for 1.2mm thickness
After processing passage, low temperature partial annealing is carried out to cold rolling blank for the cold rolling blank of degree.
It should be noted that in this step H, cast-rolling stock carries out thickness processing by following processing passage successively, i.e.,
Rewinding trimming is carried out after 7mm, 4.7mm, 3.1mm, 2.1mm, then passes through 1.6mm, 1.2mm to obtain required finished product, and it is laggard
Row finished products, i.e. low temperature partial annealing；To 0.8 μm of cold rolling rollcogging-roll roughness Ra；Rolling oil additives content 7~
8%；Work roll crown 0.03mm；Finished product low temperature partial annealing is carried out after cold rolling to final pass, it, need to be before annealing
Temperature measuring equipment is installed in aluminium volume；After aluminium is involved in stove, 360 DEG C of furnace gas heat preservations of annealing furnace after metal thermometric reaches 320 DEG C, change stove
330 DEG C of heat preservation 4h of gas.
Using the 3003 alloy half-hard state Strip processing technologys of the present embodiment, using melting, continuous casting continuous casting, cold rolling, move back
The processing method of fire, entire production procedure is short, and processing cost is low；The performances such as the blank being processed into, tensile strength and elongation percentage are good
It is good, tensile strength >=160Mpa, elongation percentage >=7%, product vertical, horizontal bending flawless, can meet aluminum luggage, cabinet and
Part stamping products demand；Specifically, by adding Mg elements in the alloy, to improve its tensile strength；By increasing Al-
The additive amount of 5Ti-B crystal grain refinement line bars improves the internal organizational structure of casting product, improves its mechanical performance.
By improving cold-rolling process, cancel conventional intermediate annealing, using finished products, by accurately controlling annealing temperature
Degree achievees the purpose that control finished product mechanical performance, the alloying component obtained are as shown in table 1 below：
1. alloying component 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
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of 3003 alloy half-hard state Strip processing technologys, which is characterized in that include the following steps：
Step A：Raw material is chosen, is put into smelting furnace；
Preferably, raw material is aluminium ingot and waste material, wherein amount of waste is no more than the 30% of raw material total amount；
Step B：It heats up to smelting furnace, above-mentioned raw materials is carried out to melting, alloying, refining and stove successively, obtain alloy
Melt；
Step C：The collocation that alloying element is carried out to the alloy melt that above-mentioned steps B is obtained, to obtain required performance；
Step D：It heats up again to smelting furnace, the processed alloy melt that step C is obtained is stirred and is refined, add simultaneously
Enter refining agent, skims after refining；
Step E：Magnesium ingot is added after the completion in skimming for above-mentioned steps D；
Preferably, the alloy melt with magnesium ingot is detected, after detection is qualified, furnace charge is gone into standing furnace and is stood,
Surface scum is only taken off in standing furnace；
Step F：The preparation before continuous casting and rolling is carried out, corresponding device parameter and process are set；
Preferably, device parameter and process include charge-temperature, baking Rose Box, connection holding furnace weif orifice between Rose Box
Chute, making simultaneously install bast mouth, Casting Roller grinding, adjust roll gap, carry out roller surface processing, connection Rose Box to preceding case section stream
Slot, setting release riser and technological parameter and the normal production casting and rolling machine run parameter of setting；
Step G：Continuous casting and rolling is carried out to the alloy melt that step E is obtained, casting, rolling deformation are realized in roll casting zone, it will be through
Aluminium alloy melt casting after line crystal grain refinement, degasification, filtering and removing slag at (6.8~7.2) × (1260~1460) strip,
Using shearing, batch as cast-rolling stock；
Step H：Use the cast-rolling stock that cold-rolling mill obtains above-mentioned steps G through multiple processing passes for 1.2mm thickness
After processing passage, low temperature partial annealing is carried out to cold rolling blank for cold rolling blank.
2. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps B
In, aluminium ingot and waste material are added in flame reverberatory furnace and melted, repeatedly stirring to bottom in stove is carried out in fusion process and is expected
It stirs evenly, after temperature of smelting furnace rises to 720~730 DEG C, takes out alloy melt, carry out constituent analysis.
3. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps C
In, the collocation of alloying element is carried out referring in particular to following formula：
Alloying element/kg=(M- detection levels) * charging weights (ton) * N；
Wherein, M and N is quantitative values；
When alloying element is chalybeate, M=0.5, N=14；When alloying element is copper agent, M=0.1, N=14；When alloy member
When element is manganese agent, M=1.1, N=14；When alloying element is instant silicon, M=0.25, N=10；When alloying element is magnesium ingot
When, M=0.1, N=10.
4. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps D
In, smelting furnace need to be warming up to 740~755 DEG C, and refining time is 30 minutes, and required refining agent dosage is 30Kg, argon gas when refining
Pressure is controlled in 0.45Mpa.
5. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps F
In, the clearance control of bast mouth and roll is within 0.5mm.
6. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps F
In, it releases riser and technological parameter includes：Riser preloads：800T/800T, preceding box temperature degree：720~740 DEG C, riser race slag speed
Degree：1.6m/min or more, 50~55mm of roll casting zone, operating status bast mouth are away from up/down roller gap-ratio 4: 6.
7. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps H
In, cast-rolling stock carries out thickness processing by following processing passage successively, i.e., rewinding is carried out after 7mm, 4.7mm, 3.1mm, 2.1mm
Trimming then passes through 1.6mm, 1.2mm to obtain required finished product, then carries out finished products, i.e. low temperature partial annealing.
8. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps H
In, cold rolling rollcogging-roll and working roll are provided in cold-rolling mill, the roughness of cold rolling rollcogging-roll is Ra0.8 μm；The convexity of working roll
For 0.03mm.
9. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps H
In, it needs that rolling oil additives are added in cold-rolling mill work, the content of rolling oil additives is 7~8%.
10. 3003 alloy half-hard state Strip processing technology according to claim 1, which is characterized in that in above-mentioned steps H
In, carry out finished product low temperature partial annealing after processing passage；
Preferably, before annealing, temperature measuring equipment need to be installed in aluminium is rolled up；After aluminium is involved in stove, 360 DEG C of furnace gas heat preservations of annealing furnace, when
After metal thermometric reaches 320 DEG C, change 330 DEG C of heat preservation 4h of furnace gas.
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