CN101921939A - Method for preparing 5182 big flat ingot with high performance by short flow process - Google Patents
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Abstract
The invention relates to a method for preparing a 5182 big flat ingot with high performance by a short flow process. The big flat ingot is prepared from a part of electrolytic aluminum liquid which replaces an electrolytic re-melting aluminum ingot, wherein the electrolytic aluminum liquid accounts for 40-70% of the raw material, and the balance is solid materials, such as secondary waste materials of the electrolytic re-melting aluminum ingot, an intermediate alloy or related alloy. is the method comprises the steps of: raw material charging sequence: firstly adding the solid materials; fused mass refining: pre-treating the aluminum fused mass by using a deslagging agent without Na powder and then spray-refining for 15-45 min by using N2-C12 mixed gas and a small amount of powder refining agent in the aluminum liquid; and online fused mass treatment: degassing by using Ar gas on a rotating degassing device, such as a DDF or a Mint and the like, tubular filtering and ceramic plate double filtering, and continuously online feeding Al-Ti-B or Al-Ti-C wire. The flat ingot is a cuboid or a similar cuboid with the length not less than 2,000 mm, the width not less than 1,000 mm and the thickness not less than 300 mm. The method has the advantages of shorter process flow, lower production cost, environmental protection and energy saving, and the like.
Description
Technical field
The present invention relates to nonferrous metal new material melting and casting field, is at adopting the electrolytic aluminium liquid directly technical process and the preparation method of the big slab ingot of casting 5182 aluminium alloy high-performance.
Background technology
5182 to belong to Al-Mg be alloy, and this alloy is owing to have good intensity, elongation and deep drawability, and special cover of pop can is higher with the requirement of 5182 alloy flat blooms.The traditional processing technology flow process of this alloy flat bloom is as follows: 1 electrolytic aluminium liquid---2 refinings---3 are cast as remelted aluminum ingot---4 secondary fusion---5 refinings---6 online treatment---7 are cast as slab ingot---, 8 following process and processing.This technical process comparative maturity, its advantage are that quality product is more stable; Its shortcoming is that operation is many, and the production cycle is long, the cost height.In the technical process 2 to 4 procedures if can be removed, directly adopt electrolytic aluminium liquid just to be cast as aluminium slab ingot (being called for short " ingot casting " down) through refining and online treatment, not only can reduce operation, reduce metal loss in the secondary fusion process, cut down the consumption of energy and save cost, and can reduce CO
2, SO
2Deng waste gas and Al
2O
3, waste sludge discharges such as KCl, NaCl.
Yet compare with conventional process techniques, electrolytic aluminium liquid has following born shortcoming:
1. aluminium liquid melt temperature height, effectively nucleation rate is low, easily causes slab ingot crystal grain thick;
2. its non-metallic inclusion mainly contains the nonmetal slag inclusion of various complexity such as aluminum oxide, fluoride salt, carbon dust carbon granules, aluminium nitride, and these slag inclusions are easy to be wrapped in aluminium slab ingot inside in castingprocesses, forms to be mingled with and hole;
3. contain CO, CO in the electrolytic aluminium liquid inevitably
2, SO
2, H
2, CH
4, N
2Etc. multiple gases, wherein with the H of hazardness maximum
2Be main, account for 70～90% of gas gross;
4. add Na in the electrolytic process
3AlF
6With contain a large amount of Na in the medium such as NaF, and the specific activity Al+ height of Na+ causes Na content in the aluminium liquid up to 0.002～0.006%, exceeds about 10 times of normal requirement, this gives and removes Na and brought very big technical difficulty.
Therefore, adopt electrolytic aluminium liquid directly to cast the technical indicator that the big specification 5182 aluminium slab ingots of high-performance will reach traditional technology, must take exclusive technical measures to make great efforts to capture technology barrier noted earlier.
Summary of the invention
The object of the present invention is to provide the short-flow production method that a kind of technical process is shorter, production cost is lower, the cover of pop can of environmental protection and energy saving is used the big slab ingot of high-performance 5182 alloys.
It is characterized in that, the electrolysis remelted aluminum ingot directly prepares the cover of pop can big slab ingot of high-performance 5182 alloys to adopt electrolytic aluminium liquid to substitute partly, and described abbreviated system comprises the ratio of determining, adding electrolytic aluminium liquid, shove charge order, melt refining and the technological process and the preparation methods such as on-line processing method, slab ingot size of fusion process batching Chemical Composition.
The present invention includes following processing step:
(1) electrolytic aluminium liquid: the part by weight 40～70% of described electrolytic aluminium liquid, surplus are solid materials such as electrolysis remelted aluminum ingot, master alloy or associated alloys one secondary waste material.In solid material, secondary waste material adding proportion≤30% solid material, master alloy is essential to be added, and addition is decided according to Chemical Composition, and the electrolysis remelted aluminum ingot is a surplus;
(2) melt refining;
(3) online treatment;
(4) be cast as slab ingot;
(5) following process and processing:
The main chemical of the big slab ingot of resulting 5182 alloys satisfies GB/T3190-2008, composition range: Mg 4.35 ~ 4.65 %; Mn0.30 ~ 0.38 %; Fe0.20 ~ 0.33 %; Cu0.03 ~ 0.07 %; Si0.05 ~ 0.20 %; Cr0.03 ~ 0.06 %; Ti≤0.10 %; Zn≤0.10 %; Na≤0.0003 %; Surplus is Al.
The dimensions of big slab ingot 5182 alloys of described high-performance is meant: length is not less than 2000mm, width and is not less than rectangular parallelepiped or the class rectangular parallelepiped that 1000mm, thickness are not less than 300mm, and described class rectangular parallelepiped is meant in the small cross-section limit of slab ingot length direction portion and has certain arc.
Among the present invention, the concrete adding proportion of electrolytic aluminium liquid is decided on electrolytic aluminium liquid charging temperature and envrionment temperature, and electrolytic aluminium liquid temperature height, envrionment temperature height then take off limit, on the contrary capping then.The ratio of associated alloys waste material≤30% solid material.When electrolytic aluminium liquid ratio＜40%, be difficult to give full play to the present invention and adopt directly energy-conservation, the purpose and the effect that reduce discharging, fall cost of casting 5182 big slab ingots of electrolytic aluminium liquid; And when electrolytic aluminium liquid＞70%, increase the scaling loss amount of aluminium, produced simultaneously oxide slag inclusion possibility increases, increase the difficulty of operating process, reduce production efficiency, and product quality defect increases, some defective could be found below will and being cold rolled to 1.3mm through hot rolling, and under scanning electron microscope, just can observe, as shown in Figure 1.
The trade mark of the alloy of described associated alloys waste material comprises 1000 line aluminium alloys, 5052,5082 and 5182 of aluminium content 〉=99.5%.One secondary waste material mainly refers to the technology waste product material that produces in the above-mentioned alloy production process, the waste material of normal cut edge material and cutting head cutting tail generation, do not comprise the waste product material that digs limit waste product and the generation of other situation, aforementioned waste material can not with other alloy batch mixing, can not be contaminated.
The reinforced of the big slab ingot melting of described 5182 alloys adds associated alloys one secondary waste material, remelted aluminum ingot, master alloy solid material such as (adding half earlier) earlier along pressing, add electrolytic aluminium liquid then, treat refining again after the solid material fusing, the residue master alloy adds when adjusting composition after on-the-spot sample analysis.The solid material is owing to the heat absorption fusing is lowered the temperature, the degree of cooling is with what, situation and ambient air temperature degree and different of solid material, should suitably start to burn according to the temperature of aluminum liquid situation in melting process and chew, to quicken fusing, like this can be energy-conservation and reduce metal loss, raise the efficiency.
The refining process of the big slab ingot of described 5182 alloys: need to adopt no Na powdery deslagging agent that molten aluminium is carried out pre-treatment, stir, take off aluminium liquid surface scum, adopt N then
2-Cl
2Mixed gas (Cl
2Content 5～10%) add the refining of in aluminium liquid, spraying of few part powder refining agent.Refining process notes controlling the furnace wall dross, refining time 15～45 minutes, and the electrolytic aluminium liquid ratio is high more, and refining time is long more, helps reducing the Na content in the electrolytic aluminium liquid.
The melt online treatment of the big slab ingot of described 5182 alloys with Ar gas in DDF(two rotors degasification melt treatment system) or Mint (U.S.'s molten aluminium Online Processing System) device on degasification; Described melt filtration mode is tubular filter+ceramic plate double filtration or double filtration of Ceramic Balls filtration+ceramic plate or two cover ceramic plate double filtrations; Online grain refining mode before the described melt casting is that Al-Ti-B or Al-Ti-C silk on-line continuous are fed silk.
So-called batching Chemical Composition is meant the target chemical ingredients of determining according to standard GB/T3190-2008, the steps of raw and auxiliary material proportioning composition that the influence factors such as decrement that the alloying element increment that instrument produces in existing alloying element content and the fusion process in the consideration raw material and some element oxidation bring are determined.Fe: behind the weighting content, absolute content floats downward 0.02% again in deduction electrolytic aluminium liquid and the electrolysis remelted aluminum ingot; Weighting content in Si deduction electrolytic aluminium liquid and the electrolysis remelted aluminum ingot; Mg: relative content increases by 10%; Other element does not have increase and decrease.
Other technology of the big slab ingot of described 5182 alloys is with to adopt remelted aluminum ingot to prepare 5182 alloy flat blooms identical, but to note controlling big slab ingot organize crystal grain tiny, grain fineness number reaches one-level, defectives such as flawless, pore, bright crystal grain, nonmetal inclusion exist.
Adopt processing method of the present invention to compare with the traditional technology method, one ton of big slab ingot of high-performance 5182 alloys of every preparation can save needed a whole set of equipment of remelted aluminum ingot castingprocesses, raw and auxiliary material, relevant manpower and energy consumption; At least can save 0.7% metallic aluminium scaling loss, reduce 25 degree power consumptions, 8 tons of water of productive use and 25kg fuel oil, save 25 yuan of raw and auxiliary materials.Calculate by current market price is conservative, product per ton is cost-saved about more than 280 yuan.Reduced a large amount of CO simultaneously
2And SO
2Discharging in waste gas, waste water, dust and waste residue.
Description of drawings
Fig. 1 (a) and Fig. 1 (b) are respectively the 5182 big slab ingots that use the preparation of 80% electrolytic aluminium liquid in process of the test, through milling face, heating, be cold-rolled to 1.3mm and find that there is impression on the surface, after this impression cleaning, carry out metallograph and stereoscan photograph that metallographicobservation and scanning electron microscopic observation obtain.
Fig. 2 (a) and Fig. 2 (b) are the grain structure photos of big slab ingot among the embodiment 1.
Fig. 3 (a) and Fig. 3 (b) are the photos of second phase constitution among the embodiment 1.
Embodiment
Embodiment 1: the weighting content of Fe and Si element is respectively in electrolytic aluminium liquid and the electrolysis remelted aluminum ingot: 0.12% and 0.07%.The batching Chemical Composition is: Mg4.9 %; Mn0.36 %; Fe0.17 %; Cu0.05 %; Si0.03 %; Cr0.04 %; Ti is online with the online adding of Al5Ti1B form, and add-on is controlled Zn0.02 % about by the 1.5Kg/ ton; Electrolytic aluminium liquid ratio 40%, 5052 one-level waste material 15%, Fe, Si, Mn and Cu add with the master alloy form, and add-on is decided according to the batching Chemical Composition, and surplus is the electrolysis remelted aluminum ingot.Order of addition(of ingredients): add earlier the one-level waste material, be that electrolysis remelted aluminum ingot, Al-Cu master alloy, Al-Mn master alloy, Al-Si(add half earlier then) and Al-Fe(add half earlier) master alloy, electrolytic aluminium liquid; Remaining partly master alloy adds after the chemistry on-line analysis of refining process stokehold, adds in the Mg refine on line process.Because the electrolytic aluminium liquid ratio is low, the heat absorption of solid material fusing and lowering the temperature should suitably be started to burn in melting process and be chewed, to quicken fusing, like this can be energy-conservation and reduce metal loss, and raise the efficiency.
In refining process, need to adopt no Na powdery deslagging agent that molten aluminium is carried out pre-treatment, stir, take off aluminium liquid surface scum, adopt N then
2-10%Cl
2Mixed gas adds the refining of spraying of few part powder refining agent in aluminium liquid.Refining process notes controlling the furnace wall dross, and refining time 20～30 minutes helps reducing the Na content in the electrolytic aluminium liquid.The melt online treatment with Ar gas in the degasification of DDF rotary degassing device, the dual filter of tubular filter+ceramic plate, Al-Ti-B silk on-line continuous is fed.
Ingot casting casting specification: 510 * 1280 * 5000mm.
The final Chemical Composition of these big specification 5182 aluminium slab ingots is Mg4.42 %; Mn0.36 %; Fe0.31 %; Cu0.05 %; Si0.11 %; Cr0.04 %; Ti0.01 %; Zn≤0.10 %; Na0.0002 %; Surplus is Al.
Gas content ([H]) 0.147ml/100g is better than target value ([H])≤0.18ml/100g; In the slab ingot bottom (200～300mm) locate to cut the low power test piece analysis of 2 thick about 15～20mm, defectives such as the inner flawless of ingot casting, pore, bright crystal grain, nonmetal inclusion, and grain fineness number is one-level.
Surface quality is good, does not have tangible cold shut and segregation knurl.The sinuousness of the rolling surface of slab ingot, crooked less than 4mm in 5m length, the camber＜3mm of rolling surface.
Microstructure as shown in Figure 2, Fig. 2 (a) is the metallograph that adopts 5182 alloy flat blooms of electrolytic aluminium liquid direct production, Fig. 2 (b) is the metallograph that adopts 5182 alloy flat blooms that remelted aluminum ingot produces, and this shows that both crystal grain is approaching.
For cover of pop can, the size of second phase in the aluminium slab ingot, distribution and pattern are very big to its performance impact.
Fig. 3 (a) adopts pop can cover plate that electrolytic aluminium liquid directly casts out with 5182 alloy flat blooms, the second phase microstructure picture, and therefrom visible second compares disperse, distribution uniform.Fig. 3 (b) is the second phase photo situation that adopts 5182 slab ingots of traditional technology production, and both are close substantially.
Compare with traditional technology, adopt one ton of 5182 aluminium slab ingot of the every preparation of the present embodiment, can save 0.7% metallic aluminium scaling loss, reduce 25 degree power consumptions, 8 tons of water of productive use and 25kg fuel oil, save 25 yuan of raw and auxiliary materials.Calculate by current market price is conservative, product per ton is cost-saved about more than 280 yuan.Reduced a large amount of CO simultaneously
2And SO
2The discharging of waste gas, waste water, dust and waste residue.
Embodiment 2: the weighting content of Fe and Si element is respectively in electrolytic aluminium liquid and the electrolysis remelted aluminum ingot: 0.11% and 0.08%.The batching Chemical Composition is: Mg5.0 %; Mn0.35 %; Fe0.19 %; Cu0.05 %; Si0.05 %; Cr0.04 %; Ti is online with the online adding of Al5Ti1B form, and add-on is controlled Zn0.02 % about by the 1.5Kg/ ton; Electrolytic aluminium liquid ratio 68%, 5052 one-level waste material 8%, Fe, Si, Mn and Cu add with the master alloy form, and add-on is decided according to the batching Chemical Composition, and surplus is the electrolysis remelted aluminum ingot.Order of addition(of ingredients): add earlier the one-level waste material, be that electrolysis remelted aluminum ingot, Al-Cu master alloy, Al-Mn master alloy, Al-Si(add half earlier then) and Al-Fe(add half earlier) master alloy, electrolytic aluminium liquid; Remaining partly master alloy adds middle electrolytic aluminium liquid after the chemistry on-line analysis of refining process stokehold; Add in the Mg refine on line process.Refining time 35～45 minutes should start to burn in the refining process and chew insulation.Other technology is with implementation example 1.
Ingot casting casting specification: 510 * 1580 * 3500mm.
The final Chemical Composition of these big specification 5182 aluminium slab ingots is Mg4.46 %; Mn0.35%; Fe0.31 %; Cu0.06 %; Si0.14 %; Cr0.04 %; Ti≤0.011 %; Zn≤0.10 %; Na0.0003 %; Surplus is Al.
Gas content ([H]) 0.153ml/100g is better than target value ([H])≤0.18ml/100g; In the slab ingot bottom (200～300mm) locate to cut the low power test piece analysis of 2 thick about 15～20mm, defectives such as the inner flawless of ingot casting, pore, bright crystal grain, nonmetal inclusion, and grain fineness number is one-level.
Surface quality and visual appearance, microstructure are all close with embodiment 1 with second mutually size, distribution and the pattern.
Compare with traditional technology, adopt one ton of 5182 aluminium slab ingot of the every preparation of the present embodiment, can save 1.2% metallic aluminium scaling loss, reduce 38 degree power consumptions, 12 tons of water of productive use and 35kg fuel oil, save 42 yuan of raw and auxiliary materials.Calculate by current market price is conservative, product per ton is cost-saved about more than 390 yuan.Reduced a large amount of CO simultaneously
2And SO
2The discharging of waste gas, waste water, dust and waste residue.
Embodiment 3: the weighting content of Fe and Si element is respectively in electrolytic aluminium liquid and the electrolysis remelted aluminum ingot: 0.12% and 0.09%.The batching Chemical Composition is: Mg4.8 %; Mn0.34 %; Fe0.19 %; Cu0.05 %; Si0.03 %; Cr0.04 %; Ti is online with the online adding of Al5Ti1B form, and add-on is controlled Zn0.02 % about by the 1.5Kg/ ton; Electrolytic aluminium liquid ratio 49.5%, 5052 one-level waste material 12%, Fe, Si, Mn and Cu add with the master alloy form, and add-on is decided according to the batching Chemical Composition, and surplus is the electrolysis remelted aluminum ingot.Order of addition(of ingredients): add earlier the one-level waste material, be that electrolysis remelted aluminum ingot, Al-Cu master alloy, Al-Mn master alloy, Al-Si(add half earlier then) and Al-Fe(add half earlier) master alloy, electrolytic aluminium liquid; Remaining partly master alloy adds middle electrolytic aluminium liquid after the chemistry on-line analysis of refining process stokehold; Add in the Mg refine on line process.Refining time 25～40 minutes should start to burn in the refining process and chew insulation.Other technology is with embodiment 1.
Ingot casting casting specification: 510 * 1070 * 5500mm
The final Chemical Composition of these big specification 5182 aluminium slab ingots is Mg4.35 %; Mn0.34%; Fe0.33 %; Cu0.06 %; Si0.12 %; Cr0.04 %; Ti≤0.011 %; Zn≤0.10 %; Na0.0002 %; Surplus is Al.
Gas content ([H]) 0.145ml/100g is better than target value ([H])≤0.18ml/100g; In the slab ingot bottom (200～300mm) locate to cut the low power test piece analysis of 2 thick about 15～20mm, defectives such as the inner flawless of ingot casting, pore, bright crystal grain, nonmetal inclusion, and grain fineness number is one-level.
Surface quality and visual appearance, microstructure are all close with implementation example 1 with second mutually size, distribution and the pattern.
Compare with traditional technology, adopt one ton of 5182 aluminium slab ingot of the every preparation of the present embodiment, can save 0.9% metallic aluminium scaling loss, reduce 33 degree power consumptions, 10 tons of water of productive use and 31kg fuel oil, save 37 yuan of raw and auxiliary materials.Calculate by current market price is conservative, product per ton is cost-saved about more than 350 yuan.Reduced a large amount of CO simultaneously
2And SO
2The discharging of waste gas, waste water, dust and waste residue.
Embodiment 4: the weighting content of Fe and Si element is respectively in electrolytic aluminium liquid and the electrolysis remelted aluminum ingot: 0.12% and 0.07%.The batching Chemical Composition is: Mg4.9 %; Mn0.35 %; Fe0.18 %; Cu0.05 %; Si0.06 %; Cr0.04 %; Ti is online with the online adding of Al5Ti1B form, and add-on is controlled Zn0.02 % about by the 1.5Kg/ ton; Electrolytic aluminium liquid ratio 61% does not add waste material, and Fe, Si, Mn and Cu add with the master alloy form, and add-on is decided according to the batching Chemical Composition, and surplus is the electrolysis remelted aluminum ingot.Order of addition(of ingredients): add earlier the one-level waste material, be that electrolysis remelted aluminum ingot, Al-Cu master alloy, Al-Mn master alloy, Al-Si(add half earlier then) and Al-Fe(add half earlier) master alloy, electrolytic aluminium liquid; Remaining partly master alloy adds middle electrolytic aluminium liquid after the chemistry on-line analysis of refining process stokehold; Add in the Mg refine on line process.Refining time 30～45 minutes should start to burn in the refining process and chew insulation.Other technology is with embodiment 1.
Ingot casting casting specification: 510 * 1280 * 5500mm
The final Chemical Composition of these big specification 5182 aluminium slab ingots is Mg4.51 %; Mn0.35%; Fe0.31 %; Cu0.06 %; Si0.13 %; Cr0.04 %; Ti≤0.011 %; Zn≤0.10 %; Na0.0003 %; Surplus is Al.
Gas content ([H]) 0.151ml/100g is better than target value ([H])≤0.18ml/100g; In the slab ingot bottom (200～300mm) locate to cut the low power test piece analysis of 2 thick about 15～20mm, defectives such as the inner flawless of ingot casting, pore, bright crystal grain, nonmetal inclusion, and grain fineness number is one-level.
Surface quality and visual appearance, microstructure are all close with implementation example 1 with second mutually size, distribution and the pattern.
Compare with traditional technology, adopt one ton of 5182 aluminium slab ingot of the every preparation of the present embodiment, can save 1.03% metallic aluminium scaling loss, reduce 36 degree power consumptions, 11 tons of water of productive use and 33kg fuel oil, save 39 yuan of raw and auxiliary materials.Calculate by current market price is conservative, product per ton is cost-saved about more than 370 yuan.Reduced a large amount of CO simultaneously
2And SO
2The discharging of waste gas, waste water, dust and waste residue.
Claims (5)
1. an abbreviated system prepares the method for the big slab ingot of 5182 high-performance, it is characterized in that described method comprises following processing step:
(1) electrolytic aluminium liquid: the part by weight 40～70% of described electrolytic aluminium liquid, surplus is as electrolysis remelted aluminum ingot, master alloy or the associated alloys one secondary waste material of solid material; In solid material, secondary waste material adding proportion≤30% solid material, master alloy is essential to be added, and addition is decided according to the batching Chemical Composition, and the electrolysis remelted aluminum ingot is a surplus; The raw material shove charge by the master alloy that adds earlier a secondary waste material, remelted aluminum ingot, half amount, adds electrolytic aluminium liquid in proper order then, treats refining again after the solid material fusing, and the residue master alloy adds when being used for adjusting composition after the on-the-spot sample analysis;
(2) melt refining: adopt no Na powdery deslagging agent that the molten aluminium of step (1) gained is carried out pre-treatment, stir, take off aluminium liquid surface scum, adopt N then
2-Cl
2Mixed gas adds the refining of spraying of powder refining agent in aluminium liquid, refining process notes controlling the furnace wall dross, refining time 15～45 minutes, and the electrolytic aluminium liquid ratio is high more, and refining time is long more;
(3) online treatment: with Ar gas in DDF(two rotors degasification melt treatment system) or Mint (U.S.'s molten aluminium Online Processing System) device on degasification; To the melt double-stage filtering, and the mode that adopts Al-Ti-B or Al-Ti-C silk on-line continuous to feed silk is carried out online grain refining;
(4) be cast as the slab ingot of pre-set dimension;
(5) following process and processing:
The main chemical of the big slab ingot of resulting 5182 alloys satisfies GB/T3190-2008, composition range: Mg 4.35 ~ 4.65 %; Mn0.30 ~ 0.38 %; Fe0.20 ~ 0.33 %; Cu0.03 ~ 0.07 %; Si0.05 ~ 0.20 %; Cr0.03 ~ 0.06 %; Ti≤0.10 %; Zn≤0.10 %; Na≤0.0003 %; Surplus is Al.
2. abbreviated system according to claim 1 prepares the method for the big slab ingot of 5182 high-performance, it is characterized in that, the big slab ingot of described 5182 alloys is of a size of, length is not less than 2000mm, width and is not less than rectangular parallelepiped or the class rectangular parallelepiped that 1000mm, thickness are not less than 300mm, and described class rectangular parallelepiped is meant in the small cross-section limit of slab ingot length direction portion and has certain arc.
3. abbreviated system according to claim 1 prepares the method for the big slab ingot of 5182 high-performance, it is characterized in that, the alloy designations of described associated alloys waste material comprises 1000 line aluminium alloys, 5052,5082 and 5182 of aluminium content 〉=99.5%; One secondary waste material is meant the technology waste product material that produces in the above-mentioned alloy production process, the waste material of normal cut edge material and cutting head cutting tail generation, does not comprise the waste product material that plane limit waste product and other situation produce; Described waste material can not with other alloy batch mixing, can not be contaminated.
4. abbreviated system according to claim 1 prepares the method for the big slab ingot of 5182 high-performance, it is characterized in that described melt filtration mode is tubular filter+ceramic plate double filtration or double filtration of Ceramic Balls filtration+ceramic plate or two cover ceramic plate double filtrations.
5. abbreviated system according to claim 1 prepares the method for the big slab ingot of 5182 high-performance, it is characterized in that, described batching Chemical Composition is meant the target chemical ingredients of determining according to standard GB/T3190-2008, the steps of raw and auxiliary material proportioning composition that the decrement influence factor that the alloying element increment that instrument produces in existing alloying element content and the fusion process in the consideration raw material and some element oxidation bring is determined; Wherein, behind the weighting content, absolute content floats downward 0.02% again in Fe deduction electrolytic aluminium liquid and the electrolysis remelted aluminum ingot; Weighting content in Si deduction electrolytic aluminium liquid and the electrolysis remelted aluminum ingot; The Mg relative content increases by 10%, and other element does not have increase and decrease.
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| CN115233000A (en) * | 2022-07-27 | 2022-10-25 | 山东南山铝业股份有限公司 | Production method for recycling tank body material for automobile plate |
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| CN102251135A (en) * | 2011-08-05 | 2011-11-23 | 中信戴卡轮毂制造股份有限公司 | Improved aluminum liquid refining process |
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| CN102899540B (en) * | 2012-08-10 | 2015-01-14 | 广西南南铝加工有限公司 | Super large specification aluminum alloy slab ingot and casting method |
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| CN107955887A (en) * | 2017-10-13 | 2018-04-24 | 新疆众和股份有限公司 | A kind of high-magnesium aluminum alloy cleaning molten treatment process |
| CN111004938A (en) * | 2019-12-12 | 2020-04-14 | 云南云铝润鑫铝业有限公司 | Method for refining grains in aluminum alloy smelting process |
| CN111763857A (en) * | 2020-07-08 | 2020-10-13 | 甘肃东兴铝业有限公司 | Method for preparing 5182 aluminum alloy strip blank |
| CN112430760A (en) * | 2020-11-19 | 2021-03-02 | 福耀汽车铝件(福建)有限公司 | Manufacturing method of luggage rack |
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| CN115233000A (en) * | 2022-07-27 | 2022-10-25 | 山东南山铝业股份有限公司 | Production method for recycling tank body material for automobile plate |
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