CN104357722A - Solar heat collecting and storing aluminum foil and manufacturing method thereof - Google Patents
Solar heat collecting and storing aluminum foil and manufacturing method thereof Download PDFInfo
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- CN104357722A CN104357722A CN201410549317.0A CN201410549317A CN104357722A CN 104357722 A CN104357722 A CN 104357722A CN 201410549317 A CN201410549317 A CN 201410549317A CN 104357722 A CN104357722 A CN 104357722A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/18—Alloys based on aluminium with copper as the next major constituent with zinc
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/14—Alloys based on aluminium with copper as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/12—Alloys based on aluminium with copper as the next major constituent
- C22C21/16—Alloys based on aluminium with copper as the next major constituent with magnesium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/10—Details of absorbing elements characterised by the absorbing material
- F24S70/12—Details of absorbing elements characterised by the absorbing material made of metallic material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention relates to a solar heat collecting and storing aluminum foil and a manufacturing method thereof. The solar heat collecting and storing aluminum foil comprises the following chemical components in percentage by mass: 0.01-0.07% of Si, 0.01-0.12% of Fe, 0.08-0.12% of Cu, smaller than or equal to 0.005% of Mn, smaller than or equal to 0.005% of Zn, smaller than or equal to 0.005% of Mg, 0.01-0.03% of Ti and the balance of Al and inevitable impurities. The aluminum foil has a thickness ranging from 0.043 to 0.045mm, the tensile strength of 250-280MPa, the yield strength of 235-265MPa, the elongation greater than or equal to 1%, and the thermal conductivity greater than or equal to 225W / (m.K) at 25 DEG C. Through reasonable setting of contents of copper and other alloy elements in the aluminum foil, a black copper oxide film layer with a strong surface colorizing capability is formed during surface chemical etching of the aluminum foil, so that the aluminum foil increases the solar energy absorbing rate and decreases the reflection coefficient.
Description
Technical field
The invention belongs to aluminium foil and method field of manufacturing thereof, be specifically related to the strong and good mechanical performance of a kind of chemically blackening tinting strength and be convenient to process the aluminium foil and manufacture method thereof moulded.
Background technology
At present, plate solar collector heat-absorbing plate core structure is mainly plane aluminium foil and adds heat absorbing coating, and its dependence increase aluminium foil specific surface area improves the sticking power between aluminium foil and heat absorbing coating, reaches heat absorption object by heat absorbing coating.This clad aluminum foil manufacturing condition requires harsh, and lumber recovery is lower, and heat absorbing coating is expensive, is thus difficult to apply.From improving the endothermic effect of solar energy collecting heat-absorbing plate core and heat storage capacity and reduce costs, those skilled in the art have made improvement from following two aspects: transform plate solar collector heat-absorbing plate core slab construction as flats laminated aluminium foil honeycomb body structure, make accumulation of heat effect obtain obvious lifting; Meanwhile, carry out chemically blackening process to aluminium foil surface and make aluminium foil surface form one deck black rete, this black rete has high solar far-infrared absorption rate and low reflection coefficient, has obvious endothermic effect, thus the heat absorbing coating that alternative cost is higher.
Above-mentioned aluminium foil honeycomb body structure by aluminium foil through cutting, the series of processes manufacture such as superimposed, stretching forms, this has certain requirement to the mechanical property of used aluminium foil, as required that aluminium foil self has high yield strength, tensile strength and yield tensile ratio etc. for adapting to machine-shaping.Meanwhile, in order to ensure heat absorption, the heat storage capacity of aluminium foil, not only require aluminium foil self but also there is excellent heat-resisting, thermal conductivity and stronger chemically blackening tinting strength.In order to meet aforementioned terms and conditions, being further improved existing aluminium foil alloying constituent and content and its complete processing is the technical problems of those skilled in the art in the urgent need to probing into.
Summary of the invention
Technical problem to be solved by this invention provides a kind of aluminium foil for above-mentioned prior art, its chemically blackening tinting strength is strong, heat-resisting, heat conductivility is excellent and excellent in mechanical performance, can be suitable for the flats laminated aluminium foil honeycomb manufacturing solar energy collecting heat-absorbing plate core.
Another technical problem to be solved by this invention is to provide a kind of manufacture method of above-mentioned aluminium foil.
The present invention's adopted technical scheme that solves the problem is, a kind of solar energy collecting accumulation of heat aluminium foil, the chemical composition of this aluminium foil is by mass percentage: Si:0.01 ~ 0.07%, Fe:0.01 ~ 0.12%, Cu:0.08 ~ 0.12%, Mn :≤0.005%, Zn :≤0.005%, Mg :≤0.005%, Ti:0.01 ~ 0.03%, surplus is Al and inevitable impurity.
Further, the thickness of described aluminium foil is 0.044 ± 0.001mm, and tensile strength is 250 ~ 280MPa, yield strength 235 ~ 265MPa, unit elongation >=1%, thermal conductivity >=225W/ (mK) when 25 DEG C.
Under room temperature, the solubleness of Mg in aluminium is less than 2%, and the Mg of low levels is solid-solubilized in aluminum substrate substantially, and the electropotential of aluminum substrate is influenced hardly.The MnAl that Mn is formed in aluminium
6equal with the electropotential of fine aluminium.The membership that adds of Zn makes the current potential of aluminum substrate raise.Cu is the element that the current potential of aluminum substrate is declined.Oxidizing reaction is easily there is in what current potential was low in galvanic interaction for negative pole; the CuO rete of aluminium foil through chemical corrosion process rear surface formation black is conducive to by the content increasing Cu in aluminium foil; as aluminium foil surface protective layer and improve the solidity to corrosion of aluminium foil; meet as the strong technology service requirements of solar energy collecting accumulation of heat aluminium foil chemically blackening tinting strength simultaneously; and through being oxidized the black CuO rete obtained, there is higher sun power far-infrared absorption rate and low reflection coefficient, contributing to the heat absorption, the accumulation of heat effect that significantly improve aluminium foil.
The installation warrants of Cu content of the present invention is, under room temperature, the solubleness of Cu in aluminium is about 0.1%, and in chemical corrosion process, Cu too high levels aluminium foil surface oxidizing reaction is violent, the heat of release is large, aluminium foil surface easily forms corrosion failure, the too low oxidation filming thickness that can affect again aluminium foil surface of Cu content, therefore, in the present invention, the proportioning of Cu content is 0.08 ~ 0.12%, and under this condition, the chemically blackening treatment effect of aluminium foil is best.In addition, the appropriate Cu content that increases has certain solid solution strengthening effect, can improve the hot strength of aluminium alloy, make aluminium foil have excellent thermotolerance; FeAl in aluminium foil
3can a small amount of Cu be dissolved, generate (FeCu) Al
6compound, thermal conductivity can have increased slightly with the rising of temperature, makes up the loss because viscous deformation makes the thermal conductivity of aluminium decline, and is conducive to the superior thermal conductivity that aluminium foil alloy keeps fine aluminium intrinsic.
Ti is Addition ofelements conventional in aluminium alloy, with AlTi
5b filamentous form adds Al melt, forms Al
3ti and B
2ti phase compound, becomes non-spontaneous nucleation during crystallization, plays the effect of refinement Microstructure of roll casting, is conducive to the raising of alloy plasticity.
The electropotential of the trace compound that the trace element such as Fe, Si, Mn, Zn, Mg is formed in aluminium foil is higher than aluminum substrate electropotential, at aluminium foil surface after chemical corrosion process, spot corrosion preferentially occurs at the position that black oxide film surface imperfection combines with trace compound, the content of the trace element such as Fe, Si, Mn, Zn, Mg therefore in aluminium foil must strictly control, to improve the surface quality of black oxidation copper film, guarantee the heat absorption of black oxidation copper film, heat storage capacity.
The technical scheme that the present invention solves another technical problem is, provide a kind of method manufacturing above-mentioned solar energy collecting accumulation of heat aluminium foil, concrete steps are as follows:
(1) strand: the raw material good by proportioning, except Ti raw material, heating is smelted into aluminium alloy melt, then casting, and in melt, adds AlTi with the speed of 330 ~ 400mm/min in casting operation
5b B alloy wire, casting goes out the thick cast-rolling stock of 6.5 ± 0.2mm;
(2) cold rolling: to adopt multi-pass cold rolling process that cast-rolling stock thick for 6.5 ± 0.2mm is rolled into the thick cold-reduced sheet of 0.32 ~ 0.38mm;
(3) paper tinsel rolls: adopting multi-pass paper tinsel to roll operation, cold-reduced sheet thick for 0.32 ~ 0.38mm is rolled into thickness is the aluminium foil that 0.044 ± 0.001mm is thick, obtains aluminum foil finished product.
Preferably, adopt double-stage filtering case to carry out melt filtration in casting operation described in step (1), screen plate number is upper strata 40ppi, lower floor 60 ppi, to guarantee the purity of cast-rolling stock.
Be more reasonably, described multi-pass cold rolling process is specially, cast-rolling stock thick for 6.5 ± 0.2mm is rolled into the thick cold-reduced sheet of 3.2 ~ 3.6mm by the first passage cold rolling process, the thick cold-reduced sheet of 1.6 ~ 1.9mm is rolled into again by the second passage cold rolling process, the thick cold-reduced sheet of 0.9 ~ 1.1mm is rolled into again by the 3rd passage cold rolling process, the thick cold-reduced sheet of 0.55 ~ 0.65mm is rolled into again by four-pass cold rolling process, after parking 24 ~ 48 hours, be rolled into the thick cold-reduced sheet of 0.32 ~ 0.38mm by the 5th passage cold rolling process again, and then park 24 ~ 48 hours.
Be more reasonably, described multi-pass paper tinsel rolls operation and is specially, cold-reduced sheet thick for 0.32 ~ 0.38mm is rolled operation by the first passage paper tinsel and is rolled into the thick aluminium foil of 0.18 ~ 0.21mm, roll operation by the second passage paper tinsel again and be rolled into the thick aluminium foil of 0.1 ~ 0.12mm, after parking 24 ~ 48 hours, roll operation by the 3rd passage paper tinsel again and be rolled into the thick aluminium foil of 0.062 ~ 0.068mm, then park 24 ~ 48 hours, finally roll operation by four-pass paper tinsel and be rolled into the thick aluminium foil of 0.044 ± 0.001mm.
The multi-pass knobble mode that this manufacture method adopts, its object is to, and along with the increase gradually of rolling total deformation, crystal grain and second phase particles size reduce, and dislocation desity increases; Meanwhile, utilize the deformation heat of each passes that the curling material volume of rolling is heated up evenly, impel second phase particles to separate out and increase, disperse is compared in distribution, is conducive to aluminium foil after chemical corrosion process, the oxidation film layer thickness uniformity that aluminium foil surface is formed.
This manufacture method adopt without the processing mode of process annealing Direct Rolling to finished product thickness, the yield tensile ratio of the yield strength of aluminium foil, tensile strength, unit elongation and aluminium foil can be significantly improved, be conducive to the cutting of postorder aluminium foil, superimposed and draw in the net shaping, obtain the aluminium foil honeycomb body structure that structural strength is higher.In addition, owing to eliminating annealing steps, technique is more simple, reduces the tooling cost that aluminium foil is produced.
Compared with prior art, the invention has the advantages that: by rationally arranging the content of copper in aluminium foil, make aluminium foil form the strong black oxidation copper film layer of surface colour power when carrying out surface chemistry corrosion treatment, thus achieve the raising of aluminium foil to sun power far-infrared absorption rate and the reduction of reflection coefficient.Simultaneously, in strict control aluminium foil, the composition of other alloying elements and content make again the surface quality of the black oxidation copper film layer of formation more excellent, and make the mechanical property of aluminium foil entirety, corrosion resisting property and heat-resisting, heat conductivility be obtained for guarantee, make it to meet the index request as solar energy collecting accumulation of heat aluminium foil.In addition, the corresponding manufacturing process of this aluminium foil also has advantage reasonable in design, that flow process is simple, with low cost.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
A kind of solar energy collecting accumulation of heat aluminium foil, its thickness is 0.044mm, and the chemical composition of this aluminium foil is by mass percentage: Fe:0. 08%, Si:0.02%, Cu:0.1%, Mn :≤0.005%, Mg :≤0.005%, Zn :≤0.005%, Ti:0.03%, surplus is Al and inevitable impurity.
The manufacturing technology steps of above-mentioned solar energy collecting accumulation of heat aluminium foil is as follows:
The first step, batching: according to chemical composition proportioning configuration raw material, wherein Ti is with AlTi
5the form configuration of B B alloy wire;
Second step, melting: by the raw material configured, AlTi
5except B B alloy wire, join melting in smelting furnace, melting operation comprises:
A, intensification fusing: setting fire box temperature is 950 ~ 1000 DEG C, adjust flame size and start intensification, changes flat rear stirring, thermometric in time, control melt temperature and be no more than 750 DEG C;
B, stirring are skimmed: in furnace charge temperature-rise period, according to load melting situation, can take the circumstances into consideration to carry out being bulldozed or stirring, and improve burn-off rate, skim after stirring;
C, input metal additive: after furnace chargeization is flat, molten aluminium temperature is evenly thrown into metal additive after reaching the temperature that desired additives working instructions require, when temperature of aluminum liquid rises to 720 ~ 750 DEG C, stirs 4 ~ 5 minutes, impels uniform composition in stove;
D, sampling: after being sprinkled into metal additive, sample after the time of repose that additive working instructions to be achieved require, melt temperature during sampling is 720 ~ 750 DEG C, thoroughly will stir before sampling to melt, to ensure uniform composition;
E, injection refining are skimmed: injection refining starting temperature 730 ~ 750 DEG C, and refining process controls molten aluminium temperature at 720 ~ 750 DEG C, 15 ~ 20 minutes consuming time of refining, and refining agent molten aluminium per ton uses 1.7 ~ 2.2kg, leaves standstill more than 15min, skim after refining;
F, composition adjustment: when the substandard chemical composition lower limit of analytical results just needs feed supplement, when analytical results higher than in the chemical composition of standard in limited time needs water down, carry out again after composition adjustment stirring, composition sampling;
G, CCl
4refining is skimmed: CCl
4refining starting temperature 730 ~ 750 DEG C, refining process controls molten aluminium temperature at 720 ~ 750 DEG C, CCl in smelting furnace
4refining time: 15 ~ 20 minutes, leaves standstill more than 15min after refining, skims;
H, secondary component adjust: composition adjustment scope, more than 0.03%, needs to carry out CCl
4refining, resampling confirms.
I, lead stokehold sampling: at composition adjustment, to stir and temperature samples after reaching requirement again, determine that leading stokehold alloying constituent controls in preset range.
J, smelting furnace prepurging: carry out after leading stove scraping end operation, ensure the raw capacity of smelting furnace, enters prepurging in smelting furnace after blowing out cooling;
K, holding furnace process: after leading stove, in 10min, carry out CCl
4refining, refining time 15 ~ 20 minutes, sampling confirms that composition meets the requirements, and melt is parked to be needed to carry out argon gas refining for more than 4 hours, and argon gas refining cycle is 3 ~ 5 hours, and the complete need of each refining are skimmed;
3rd step, casting: adopt double roller continuous casting casting and rolling installation to carry out continuous casting and rolling to molten aluminium, direct casting goes out to be suitable for 6.5 cold rolling ± 0.2mm, width is the cast-rolled block of 1090 ± 10mm, in casting operation, start the wire rod feeding machine matched with degasification tank, in melt, add the AlTi for online grain refining
5b B alloy wire, delivery rate is 330 ~ 400mm/min, meanwhile, in casting operation, starts melt filtration, and adopt double-stage filtering case to carry out melt filtration, screen plate order number is: upper strata 40ppi, lower floor 60ppi;
4th step, cold rolling: cast-rolling stock thick for 6.5mm is rolled into the thick cold-reduced sheet of 3.4mm by the first passage cold rolling process, the thick cold-reduced sheet of 1.8mm is rolled into again by the second passage cold rolling process, the thick cold-reduced sheet of 1.0mm is rolled into again by the 3rd passage cold rolling process, the thick cold-reduced sheet of 0.63mm is rolled into again by four-pass cold rolling process, after parking 24 hours, then be rolled into the thick cold-reduced sheet of 0.35mm by the 5th passage cold rolling process, and then park 24 hours;
5th step, paper tinsel rolls: cold-reduced sheet thick for 0.35mm is rolled operation by the first passage paper tinsel and is rolled into the thick aluminium foil of 0.195mm, roll operation by the second passage paper tinsel again and be rolled into the thick aluminium foil of 0.11mm, after parking 24 hours, roll operation by the 3rd passage paper tinsel again and be rolled into the thick aluminium foil of 0.065mm, park 24 hours again, finally roll operation by four-pass paper tinsel and be rolled into the thick aluminum foil finished product of 0.044mm.
In the present embodiment, performance is satisfied after testing for made aluminium foil: ratio capacitance >=520 μ f, grain fineness number≤1 grade, tensile strength 280MPa, yield strength 260MPa, unit elongation >=1%, and when 25 DEG C, thermal conductivity is 230W/(m.k).After chemically blackening process, aluminium foil surface oxidation film layer tinting strength is strong, thickness is homogeneous, excellent surface quality, meets the technical requirement as solar energy collecting accumulation of heat aluminium foil.
Embodiment 2
A kind of solar energy collecting accumulation of heat aluminium foil, its thickness is 0.043mm, the chemical composition of this aluminium foil is by mass percentage: Fe:0. 02%, Si:0.05%, Cu:0.12%, Mn :≤0.005%, Mg :≤0.005%, Zn :≤0.005%, Ti:0.02%, surplus is Al and inevitable impurity.
Manufacturing process being distinguished as on embodiment 1 basis of above-mentioned solar energy collecting accumulation of heat aluminium foil:
4th step, cold rolling: cast-rolling stock thick for 6.5 ± 0.2mm is rolled into the thick cold-reduced sheet of 3.2mm by the first passage cold rolling process, the thick cold-reduced sheet of 1.6mm is rolled into again by the second passage cold rolling process, the thick cold-reduced sheet of 0.9mm is rolled into again by the 3rd passage cold rolling process, the thick cold-reduced sheet of 0.55mm is rolled into again by four-pass cold rolling process, after parking 24 hours, then be rolled into the thick cold-reduced sheet of 0.32mm by the 5th passage cold rolling process, and then park 24 hours;
5th step, paper tinsel rolls: cold-reduced sheet thick for 0.32mm is rolled operation by the first passage paper tinsel and is rolled into the thick aluminium foil of 0.18mm, roll operation by the second passage paper tinsel again and be rolled into the thick aluminium foil of 0.1mm, after parking 24 hours, roll operation by the 3rd passage paper tinsel again and be rolled into the thick aluminium foil of 0.062mm, park 24 hours again, finally roll operation by four-pass paper tinsel and be rolled into the thick aluminum foil finished product of 0.043mm.
In the present embodiment, performance is satisfied after testing for made aluminium foil: ratio capacitance >=520 μ f, grain fineness number≤1 grade, tensile strength 265MPa, yield strength 255MPa, unit elongation >=1%, and when 25 DEG C, thermal conductivity is 225W/(m.k).After chemically blackening process, aluminium foil surface oxidation film layer tinting strength is strong, thickness is homogeneous, excellent surface quality, meets the technical requirement as solar energy collecting accumulation of heat aluminium foil.
Embodiment 3
A kind of solar energy collecting accumulation of heat aluminium foil, its thickness is 0.045mm, and the chemical composition of this aluminium foil is by mass percentage: Fe:0. 1%, Si:0.07%, Cu:0.08%, Mn :≤0.005%, Mg :≤0.005%, Zn :≤0.005%, Ti:0.01%, surplus is Al and inevitable impurity.
Manufacturing process being distinguished as on embodiment 1 basis of above-mentioned solar energy collecting accumulation of heat aluminium foil:
4th step, cold rolling: cast-rolling stock thick for 6.5 ± 0.2mm is rolled into the thick cold-reduced sheet of 3.6mm by the first passage cold rolling process, the thick cold-reduced sheet of 1.9mm is rolled into again by the second passage cold rolling process, the thick cold-reduced sheet of 1.1mm is rolled into again by the 3rd passage cold rolling process, the thick cold-reduced sheet of 0.65mm is rolled into again by four-pass cold rolling process, after parking 24 hours, then be rolled into the thick cold-reduced sheet of 0.36mm by the 5th passage cold rolling process, and then park 24 hours;
5th step, paper tinsel rolls: cold-reduced sheet thick for 0.36mm is rolled operation by the first passage paper tinsel and is rolled into the thick aluminium foil of 0.2mm, roll operation by the second passage paper tinsel again and be rolled into the thick aluminium foil of 0.12mm, after parking 24 hours, roll operation by the 3rd passage paper tinsel again and be rolled into the thick aluminium foil of 0.066mm, park 24 hours again, finally roll operation by four-pass paper tinsel and be rolled into the thick aluminum foil finished product of 0.045mm.
In the present embodiment, performance is satisfied after testing for made aluminium foil: ratio capacitance >=520 μ f, grain fineness number≤1 grade, tensile strength 250MPa, yield strength 240MPa, unit elongation >=1%, and when 25 DEG C, thermal conductivity is 240W/(m.k).After chemically blackening process, aluminium foil surface oxidation film layer tinting strength is strong, thickness is homogeneous, excellent surface quality, meets the technical requirement as solar energy collecting accumulation of heat aluminium foil.
Claims (6)
1. a solar energy collecting accumulation of heat aluminium foil, it is characterized in that: the chemical composition of this aluminium foil is by mass percentage: Si:0.01 ~ 0.07%, Fe:0.01 ~ 0.12%, Cu:0.08 ~ 0.12%, Mn :≤0.005%, Zn :≤0.005%, Mg :≤0.005%, Ti:0.01 ~ 0.03%, surplus is Al and inevitable impurity.
2. solar energy collecting accumulation of heat aluminium foil according to claim 1, it is characterized in that: the thickness of described aluminium foil is 0.044 ± 0.001mm, and tensile strength is 250 ~ 280MPa, yield strength 235 ~ 265MPa, unit elongation >=1%, thermal conductivity >=225W/ (mK) when 25 DEG C.
3. manufacture a method for solar energy collecting accumulation of heat aluminium foil as claimed in claim 1, it is characterized in that: step is as follows:
(1) strand: the raw material good by proportioning, except Ti raw material, heating is smelted into aluminium alloy melt, then casting, and in melt, adds AlTi with the speed of 330 ~ 400mm/min in casting operation
5b B alloy wire, casting goes out the thick cast-rolling stock of 6.5 ± 0.2mm;
(2) cold rolling: to adopt multi-pass cold rolling process that cast-rolling stock thick for 6.5 ± 0.2mm is rolled into the thick cold-reduced sheet of 0.32 ~ 0.38mm;
(3) paper tinsel rolls: adopting multi-pass paper tinsel to roll operation, cold-reduced sheet thick for 0.32 ~ 0.38mm is rolled into thickness is the aluminium foil that 0.044 ± 0.001mm is thick, obtains aluminum foil finished product.
4. the manufacture method of solar energy collecting accumulation of heat aluminium foil according to claim 3, is characterized in that: adopt double-stage filtering case to carry out melt filtration in casting operation described in step (1), and screen plate number is upper strata 40ppi, lower floor 60 ppi.
5. the manufacture method of solar energy collecting accumulation of heat aluminium foil according to claim 3, it is characterized in that: described multi-pass cold rolling process is specially, cast-rolling stock thick for 6.5 ± 0.2mm is rolled into the thick cold-reduced sheet of 3.2 ~ 3.6mm by the first passage cold rolling process, the thick cold-reduced sheet of 1.6 ~ 1.9mm is rolled into again by the second passage cold rolling process, the thick cold-reduced sheet of 0.9 ~ 1.1mm is rolled into again by the 3rd passage cold rolling process, the thick cold-reduced sheet of 0.55 ~ 0.65mm is rolled into again by four-pass cold rolling process, after parking 24 ~ 48 hours, the thick cold-reduced sheet of 0.32 ~ 0.38mm is rolled into again by the 5th passage cold rolling process, and then park 24 ~ 48 hours.
6. the manufacture method of solar energy collecting accumulation of heat aluminium foil according to claim 3, it is characterized in that: described multi-pass paper tinsel rolls operation and is specially, cold-reduced sheet thick for 0.32 ~ 0.38mm is rolled operation by the first passage paper tinsel and is rolled into the thick aluminium foil of 0.18 ~ 0.21mm, roll operation by the second passage paper tinsel again and be rolled into the thick aluminium foil of 0.1 ~ 0.12mm, after parking 24 ~ 48 hours, roll operation by the 3rd passage paper tinsel again and be rolled into the thick aluminium foil of 0.062 ~ 0.068mm, park 24 ~ 48 hours again, finally roll operation by four-pass paper tinsel and be rolled into the thick aluminium foil of 0.044 ± 0.001mm.
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Cited By (6)
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| CN106282704A (en) * | 2016-08-09 | 2017-01-04 | 江阴新仁科技有限公司 | A kind of 1120 alloy flexibility bonded ceramic welding lining pad aluminium foils and preparation method thereof |
| CN106929713A (en) * | 2017-04-14 | 2017-07-07 | 邹平德利科技板材有限公司 | The aluminum foil for lithium battery production technology of 1070A alloys superhigh intensity and high-elongation |
| CN108611531A (en) * | 2018-05-02 | 2018-10-02 | 重庆京宏源实业有限公司 | High intensity, high ductibility Aluminum Plate and Strip processing technology |
| CN109266913A (en) * | 2018-12-03 | 2019-01-25 | 江苏大亚铝业有限公司 | Lithium battery 9 μm of double-face optical aluminum foils of 1100D alloy and preparation method thereof |
| CN111601905A (en) * | 2017-11-21 | 2020-08-28 | 海德鲁铝业钢材有限公司 | High-strength battery electrode foil for manufacturing lithium ion secondary battery |
| CN112077145A (en) * | 2020-07-13 | 2020-12-15 | 乳源东阳光优艾希杰精箔有限公司 | Aluminum alloy foil rolling process |
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| JPH02240245A (en) * | 1989-03-13 | 1990-09-25 | Nippon Foil Mfg Co Ltd | Production of aluminum alloy foil for electrolytic capacitor cathode |
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