CN100529132C - Aluminum alloy band for jalousie and manufacturing method thereof - Google Patents
Aluminum alloy band for jalousie and manufacturing method thereof Download PDFInfo
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- CN100529132C CN100529132C CNB2007101344586A CN200710134458A CN100529132C CN 100529132 C CN100529132 C CN 100529132C CN B2007101344586 A CNB2007101344586 A CN B2007101344586A CN 200710134458 A CN200710134458 A CN 200710134458A CN 100529132 C CN100529132 C CN 100529132C
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Abstract
The present invention discloses an aluminum alloy strip steel rolled stock used for a window blind and the production method thereof. The present invention is characterized in that the strip steel rolled stock includes the components and the weight mixing proportions of the material that iron is 0.26-0.34 percent, silicon is 0.05-0.15 percent, copper is 0.005-0.04 percent, manganese is 0.005-0.04 percent, chromium is 0.21-0.28 percent, magnesium is 2.20-2.48 percent, titanium is 0.025-0.045 percent, rare earth metal is 0.10-0.20 percent, and the residual is aluminum; the production method of the aluminum alloy strip used for the window blind comprises smelting, casting, head cutting and surface milling, homogenization annealing, hot rolling, intermediate annealing, cold rolling, intermediate annealing, cold rolling, draw bending and straightening, stabilizing treatment, and vertical cutting and strip separating. Compared with the prior art, the present invention has the remarkable advantages that the surface quality is good, the size accuracy is high, the shape of strip steel rolled stock is smooth, and the tensile strength, the product forming performance, and the arc stability better conform to the demand to the window blind.
Description
Technical field
The present invention relates to a kind of aluminum alloy band for jalousie, the present invention also provides the manufacture method of this aluminium alloy strips.
Background technology
Window shutter not only effectively prevented interference and infringement that solar ultraviolet brings for people's routine work and life, and its unique appearance also can be beautified indoor environment as a kind of modern handle official bussiness, family's sun-proof device commonly used.Aluminum alloy beancurd leaf window wherein at present commonly used have especially good looking appearance, durable in use, regeneration rate is high, advantage such as recyclable, it more and more is subjected to people's favor in office, home decoration as finishing material.But along with people's improving constantly to the house decorative material requirement, shortcomings such as existing aluminum alloy band for jalousie exists that dimensional precision is low, strip shape quality is bad, forming property and camber poor stability, and made the aluminium alloy strips method in the past and can make aluminium alloy cast ingot tissue odds, crystal grain thick, thereby make finished product have abnormal structures such as segregation, dendritic crystalline substance, in the operation of rolling subsequently, can cause the surface surface quality problems such as cavity, secret note, sticking wound to occur, thereby influence the use of aluminum alloy beancurd leaf window.
Summary of the invention
1, goal of the invention: the objective of the invention is at the deficiencies in the prior art, a kind of aluminum alloy band for jalousie is proposed, and provide that a kind of method that adopts hot rolling technology to make this material, this method have solved that organizing of existing aluminium alloy strips is bad, surface quality is poor, plate shape badly, in uneven thickness, unidirectional is curled, the problem of rebound resilience difference.
2, technical scheme: for achieving the above object, aluminum alloy band for jalousie of the present invention, the component and the weight proportion that it is characterized in that this material are: iron 0.26-0.34%, silicon 0.05-0.15%, copper 0.005-0.04%, manganese 0.005-0.04%, chromium 0.21-0.28%, magnesium 2.20-2.48%, thereby be used to improve microstructure and the distributional pattern of the second phase particle and the titanium 0.025-0.045% of the surface quality that structure has improved described aluminium alloy strips of described aluminium alloy strips, rare earth metal 0.10-0.20%, all the other are aluminium, so that the tensile strength 〉=300MPa of described aluminium alloy strips, unit elongation 〉=1%.
The manufacture method of aluminum alloy band for jalousie of the present invention is characterized in that this method may further comprise the steps:
1) additives (except the titanium) such as each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot, rare earth metal ingot bar or the chalybeate that will get ready by above-mentioned weight proportion, silicea, copper agent, manganese agent, chromium agent join in the smelting furnace, melting under 720-780 ℃ the temperature, the aluminium liquid that forms put into after the refining, slagging-off, stirring and leave standstill stove;
2) under 690-750 ℃ temperature, enable external refining device and fining agent (aluminium titanium boron) adding set, in aluminium liquid, add the titanium elements of aforementioned proportion, pour into the hot rolling ingot blank then;
3) ingot blank jagsaw head, carry out homogenizing anneal after milling face, annealing temperature is 420-500 ℃, soaking time is 10-18 hour;
4) ingot blank is rolled into the thick sheet material of 5.0-5.5mm;
5) to be placed on temperature be that sheet material is cooled to normal temperature to taking out after warm 2-4 hour in 340-400 ℃ the annealing furnace for sheet material that 5.0-5.5mm is thick;
6) plate rolling that 5.0-5.5mm is thick becomes the thick sheet material of 1.0-1.3mm on cold-rolling mill;
7) sheet material that 1.0-1.3mm is thick is placed on and carries out process annealing in the annealing furnace, and annealing temperature is 300-380 ℃, and sheet material keeps taking out after 2-5 hour to temperature, is cooled to normal temperature;
8) sheet material that 1.0-1.3mm is thick rolls into the band of 0.13-0.18mm on cold-rolling mill;
9) band with 0.13-0.18mm carries out straightening on stretch bending-straightening machine, makes the requirement up to specification of its template;
10) band with 0.13-0.18mm is placed in the heat treatment furnace, under 90-150 ℃ of temperature, is incubated 4-8 hour, makes material structure obtain certain answer, removes the material internal stress;
11) slitting: the aluminum strip slitting itemize of the 0.13-0.18mm that will cross through stabilization treatment becomes required specification, makes aluminum alloy band for jalousie of the present invention.
In order to guarantee casting quality and efficient, in step 2) casting process in, casting speed is 40-60mm/min.
For quality and the efficient that guarantees course of hot rolling, in the course of hot rolling of step 4), start rolling temperature is controlled at 440-490 ℃, and finishing temperature is controlled at 250-300 ℃, and hot rolling emulsion concentration is controlled at 3.0-5.0%, and pH value is controlled at 7.5-8.5.
3, beneficial effect: the present invention compared with prior art, its remarkable advantage:
1) the present invention is by to the optimizing and revising of alloying elements such as iron, silicon, chromium, magnesium, titanium, and in conjunction with the manufacture method of above-mentioned uniqueness, its final performance index can reach: tensile strength 〉=300MPa (prior art only is 220-250MPa), unit elongation 〉=1%.
2) the present invention adds the rare earth alloy element when melting, and has added the aluminium titanium boron wire fining agent when cast, has improved the microstructure of aluminium strip and the distributional pattern and the structure of the second phase particle, thereby has improved the surface quality of aluminium alloy strips.
3) the present invention is by founding Working Procedure Controlling alloying constituent, tissue, pass through hot rolling, the cold rolling and intermediate annealing process of optimization then, make good, keep that grain structure is tiny, production board shape is smooth defectives such as () no bend in one direction, the thickness uniform-dimension precision height of aluminium strip surface quality, forming property and camber stability more meet the requirement of window shutter product.
Embodiment
Embodiment 1: the Chemical Composition proportioning of material is:
| Component | Iron | Silicon | Copper | Manganese | Chromium | Magnesium | Titanium | Rare earth metal | Aluminium |
| Weight proportion | 0.26 | 0.05 | 0.015 | 0.005 | 0.28 | 2.20 | 0.025 | 0.10 | All the other |
The making method of aluminum alloy band for jalousie is:
1) additives such as each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot, rare earth metal ingot bar or the chalybeate that will get ready by above-mentioned weight proportion, silicea, copper agent, manganese agent, chromium agent calculate and get ready (except the titanium) behind the material by above-mentioned composition, join in the smelting furnace, under 720 ℃ temperature, melt, refining, slagging-off, stirring are laggard goes into to leave standstill stove;
2) under 700 ℃ temperature, enable external refining device and aluminium titanium boron wire fining agent adding set, the titanium elements that in aluminium liquid, adds the regulation ratio, mainly be for the microstructure of having improved aluminium strip and the distributional pattern and the structure of the second phase particle, thereby improved the surface quality of aluminium alloy strips, pour into the hot rolling ingot blank then, for guaranteeing the efficient of cast, casting speed is 40mm/min;
3) in order to improve the atomic diffusion ability, the non-equilibrium phase dissolving is precipitated mutually with oversaturated transition element, and the concentration homogenizing of promotion solute, effectively eliminate grain segregation, regional segregation, thereby improve the plasticity of aluminum substrate, improve processing characteristics, carry out homogenizing anneal with ingot blank jagsaw head, after milling face, annealing temperature is 450 ℃, and soaking time is 12 hours;
4) ingot blank is rolled into the thick sheet material of 5.0mm, for the surface quality, efficient and the inherent tissue that guarantee course of hot rolling, start rolling temperature is controlled at 460 ℃, and finishing temperature is controlled at 280 ℃, and hot rolling emulsion concentration is controlled at 3.0%, and pH value is controlled at 7.6;
5) the blank performance difference in order to reduce to cause owing to hot rolling finishing temperature, hot rolling speed, amount of cooling water and blank speed of cooling difference, annealing back homogeneous microstructure, tensile strength suitably reduces, thereby reduced cold rolling power, help switchboard shape, make the cold rolling process more stable, it is in 344 ℃ the annealing furnace that the sheet material that 5.0mm is thick is placed on temperature, sheet material takes out after 2 hours to temperature, is cooled to normal temperature;
6) plate rolling that 5.0mm is thick becomes the thick sheet material of 1.1mm on cold-rolling mill;
7) size, homogeneity and the directivity in order to guarantee the material grains size, satisfy next step cold-rolling process demand, and further guarantee the final performance index of finished product, the sheet material that 1.1mm is thick is placed on and carries out process annealing in the annealing furnace, annealing temperature is 320 ℃, sheet material takes out after 2 hours to the temperature maintenance, is cooled to normal temperature;
8) sheet material that 1.1mm is thick rolls into the band of 0.145mm on cold-rolling mill;
9) band with 0.145mm carries out straightening on stretch bending-straightening machine, makes the requirement up to specification of its template;
10) band with 0.145mm is placed in the heat treatment furnace, under 90 ℃ of temperature, is incubated 5 hours, makes material structure obtain certain answer, removes the material internal stress;
11) slitting: the aluminum strip slitting itemize of the 0.145mm that will cross through stabilization treatment becomes required specification, makes aluminum alloy band for jalousie of the present invention.
Embodiment 2: the Chemical Composition proportioning of material is:
| Component | Iron | Silicon | Copper | Manganese | Chromium | Magnesium | Titanium | Rare earth metal | Aluminium |
| Weight proportion | 0.28 | 0.08 | 0.03 | 0.02 | 0.25 | 2.30 | 0.040 | 0.12 | All the other |
The making method of aluminum alloy band for jalousie is:
1) additives such as each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot, rare earth metal ingot bar or the chalybeate that will get ready by above-mentioned weight proportion, silicea, copper agent, manganese agent, chromium agent calculate and get ready (except the titanium) behind the material by above-mentioned composition, join in the smelting furnace, under 740 ℃ temperature, melt, refining, slagging-off, stirring are laggard goes into to leave standstill stove;
2) under 690 ℃ temperature, enable external refining device and aluminium titanium boron wire fining agent adding set, the titanium elements that in aluminium liquid, adds the regulation ratio, mainly be for the microstructure of having improved aluminium strip and the distributional pattern and the structure of the second phase particle, thereby improved the surface quality of aluminium alloy strips, pour into the hot rolling ingot blank then, for guaranteeing the cast inherent efficiency, casting speed is 45mm/min;
3) in order to improve the atomic diffusion ability, the non-equilibrium phase dissolving is precipitated mutually with oversaturated transition element, and the concentration homogenizing of promotion solute, effectively eliminate grain segregation, regional segregation, thereby improve the plasticity of aluminum substrate, improve processing characteristics, carry out homogenizing anneal with ingot blank jagsaw head, after milling face, annealing temperature is 500 ℃, and soaking time is 10 hours;
4) ingot blank is rolled into the thick sheet material of 5.2mm, for the surface quality, efficient and the inherent tissue that guarantee course of hot rolling, start rolling temperature is controlled at 490 ℃, and finishing temperature is controlled at 300 ℃, and hot rolling emulsion concentration is controlled at 4.0%, and pH value is controlled at 8.0;
5) the blank performance difference in order to reduce to cause owing to hot rolling finishing temperature, hot rolling speed, amount of cooling water and blank speed of cooling difference, annealing back homogeneous microstructure, tensile strength suitably reduces, thereby reduced cold rolling power, help switchboard shape, make the cold rolling process more stable, it is in 360 ℃ the annealing furnace that the sheet material that 5.2mm is thick is placed on temperature, sheet material takes out after 2 hours to temperature, is cooled to normal temperature;
6) plate rolling that 5.2mm is thick becomes the thick sheet material of 1.0mm on cold-rolling mill;
7) size, homogeneity and the directivity in order to guarantee the material grains size, satisfy next step cold-rolling process demand, and further guarantee the final performance index of finished product, the sheet material that 1.0mm is thick is placed on and carries out process annealing in the annealing furnace, annealing temperature is 350 ℃, sheet material takes out after 4 hours to the temperature maintenance, is cooled to normal temperature;
8) sheet material that 1.0mm is thick rolls into the band of 0.13mm on cold-rolling mill;
9) band with 0.13mm carries out straightening on stretch bending-straightening machine, makes the requirement up to specification of its template;
10) band with 0.13mm is placed in the heat treatment furnace, under 150 ℃ of temperature, is incubated 4 hours, makes material structure obtain certain answer, removes the material internal stress;
11) slitting: the aluminum strip slitting itemize of the 0.13mm that will cross through stabilization treatment becomes required specification, makes aluminum alloy band for jalousie of the present invention.
Embodiment 3: the Chemical Composition proportioning of material is:
| Component | Iron | Silicon | Copper | Manganese | Chromium | Magnesium | Titanium | Rare earth metal | Aluminium |
| Weight proportion | 0.34 | 0.09 | 0.04 | 0.03 | 0.23 | 2.48 | 0.030 | 0.16 | All the other |
The making method of aluminum alloy band for jalousie is:
1) additives such as each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot, rare earth metal ingot bar or the chalybeate that will get ready by above-mentioned weight proportion, silicea, copper agent, manganese agent, chromium agent calculate and get ready (except the titanium) behind the material by above-mentioned composition, join in the smelting furnace, under 780 ℃ temperature, melt, refining, slagging-off, stirring are laggard goes into to leave standstill stove;
2) under 750 ℃ temperature, enable external refining device and aluminium titanium boron wire fining agent adding set, in aluminium liquid, add the titanium elements of regulation ratio, mainly be the microstructure and the second phase particle in order to have improved aluminium strip
Distributional pattern and structure, thereby improved the surface quality of aluminium alloy strips, pour into the hot rolling ingot blank then, be to guarantee the cast inner quality, casting speed is 60mm/min;
3) in order to improve the atomic diffusion ability, the non-equilibrium phase dissolving is precipitated mutually with oversaturated transition element, and the concentration homogenizing of promotion solute, effectively eliminate grain segregation, regional segregation, thereby improve the plasticity of aluminum substrate, improve processing characteristics, carry out homogenizing anneal with ingot blank jagsaw head, after milling face, annealing temperature is 420 ℃, and soaking time is 18 hours;
4) ingot blank is rolled into the thick sheet material of 5.5mm, for the surface quality, efficient and the inherent tissue that guarantee course of hot rolling, start rolling temperature is controlled at 480 ℃, and finishing temperature is controlled at 250 ℃, and hot rolling emulsion concentration is controlled at 5.0%, and pH value is controlled at 8.5;
5) the blank performance difference in order to reduce to cause owing to hot rolling finishing temperature, hot rolling speed, amount of cooling water and blank speed of cooling difference, annealing back homogeneous microstructure, tensile strength suitably reduces, thereby reduced cold rolling power, help switchboard shape, make the cold rolling process more stable, it is in 380 ℃ the annealing furnace that the sheet material that 5.5mm is thick is placed on temperature, sheet material takes out after 4 hours to temperature, is cooled to normal temperature;
6) plate rolling that 5.5mm is thick becomes the thick sheet material of 1.2mm on cold-rolling mill;
7) size, homogeneity and the directivity in order to guarantee the material grains size, satisfy next step cold-rolling process demand, and further guarantee the final performance index of finished product, the sheet material that 1.2mm is thick is placed on and carries out process annealing in the annealing furnace, annealing temperature is 380 ℃, sheet material takes out after 3 hours to the temperature maintenance, is cooled to normal temperature;
8) sheet material that 1.2mm is thick rolls into the band of 0.18mm on cold-rolling mill;
9) band with 0.18mm carries out straightening on stretch bending-straightening machine, makes the requirement up to specification of its template;
10) band with 0.18mm is placed in the heat treatment furnace, under 150 ℃ of temperature, is incubated 6 hours, makes material structure obtain certain answer, removes the material internal stress;
11) slitting: the aluminum strip slitting itemize of the 0.18mm that will cross through stabilization treatment becomes required specification, makes aluminum alloy band for jalousie of the present invention.
Embodiment 4: the Chemical Composition proportioning of material is:
| Component | Iron | Silicon | Copper | Manganese | Chromium | Magnesium | Titanium | Rare earth metal | Aluminium |
| Weight proportion | 0.32 | 0.15 | 0.005 | 0.04 | 0.21 | 2.40 | 0.045 | 0.20 | All the other |
The making method of aluminum alloy band for jalousie is:
1) additives such as each raw material fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot, rare earth metal ingot bar or the chalybeate that will get ready by above-mentioned weight proportion, silicea, copper agent, manganese agent, chromium agent calculate and get ready (except the titanium) behind the material by above-mentioned composition, join in the smelting furnace, under 760 ℃ temperature, melt, refining, slagging-off, stirring are laggard goes into to leave standstill stove;
2) under 730 ℃ temperature, enable external refining device and aluminium titanium boron wire fining agent adding set, the titanium elements that in aluminium liquid, adds the regulation ratio, mainly be for the microstructure of having improved aluminium strip and the distributional pattern and the structure of the second phase particle, thereby improved the surface quality of aluminium alloy strips, pour into the hot rolling ingot blank then, for guaranteeing cast inner quality and efficient, casting speed is 52mm/min;
3) in order to improve the atomic diffusion ability, the non-equilibrium phase dissolving is precipitated mutually with oversaturated transition element, and the concentration homogenizing of promotion solute, effectively eliminate grain segregation, regional segregation, thereby improve the plasticity of aluminum substrate, improve processing characteristics, carry out homogenizing anneal with ingot blank jagsaw head, after milling face, annealing temperature is 480 ℃, and soaking time is 15 hours;
4) ingot blank is rolled into the thick sheet material of 5.3mm, for the surface quality, efficient and the inherent tissue that guarantee course of hot rolling, start rolling temperature is controlled at 440 ℃, and finishing temperature is controlled at 260 ℃, and hot rolling emulsion concentration is controlled at 3.5%, and pH value is controlled at 7.5;
5) the blank performance difference in order to reduce to cause owing to hot rolling finishing temperature, hot rolling speed, amount of cooling water and blank speed of cooling difference, annealing back homogeneous microstructure, tensile strength suitably reduces, thereby reduced cold rolling power, help switchboard shape, make the cold rolling process more stable, it is in 400 ℃ the annealing furnace that the sheet material that 5.3mm is thick is placed on temperature, sheet material takes out after 3 hours to temperature, is cooled to normal temperature;
6) plate rolling that 5.3mm is thick becomes the thick sheet material of 1.3mm on cold-rolling mill;
7) size, homogeneity and the directivity in order to guarantee the material grains size, satisfy next step cold-rolling process demand, and further guarantee the final performance index of finished product, the sheet material that 1.3mm is thick is placed on and carries out process annealing in the annealing furnace, annealing temperature is 300 ℃, sheet material takes out after 5 hours to the temperature maintenance, is cooled to normal temperature;
8) sheet material that 1.3mm is thick rolls into the band of 0.16mm on cold-rolling mill;
9) band with 0.16mm carries out straightening on stretch bending-straightening machine, makes the requirement up to specification of its template;
10) band with 0.16mm is placed in the heat treatment furnace, under 130 ℃ of temperature, is incubated 8 hours, makes material structure obtain certain answer, removes the material internal stress;
11) slitting: the aluminum strip slitting itemize of the 0.16mm that will cross through stabilization treatment becomes required specification, makes aluminum alloy band for jalousie of the present invention.
Claims (6)
1, a kind of aluminum alloy band for jalousie, the component and the weight proportion that it is characterized in that this material are: iron 0.26-0.34%, silicon 0.05-0.15%, copper 0.005-0.04%, manganese 0.005-0.04%, chromium 0.21-0.28%, magnesium 2.20-2.48%, thereby be used to improve microstructure and the distributional pattern of the second phase particle and the titanium 0.025-0.045% of the surface quality that structure has improved described aluminium alloy strips of described aluminium alloy strips, rare earth metal 0.10-0.20%, all the other are aluminium, so that the tensile strength 〉=300MPa of described aluminium alloy strips, unit elongation 〉=1%.
2, a kind of manufacture method of aluminum alloy band for jalousie is characterized in that this method may further comprise the steps:
1) each raw material that weight proportion as claimed in claim 1 is got ready: iron, silicon, copper, manganese, chromium, magnesium, rare earth metal and aluminium join in the smelting furnace, melting under 720-780 ℃ the temperature, the aluminium liquid that forms are being put into after the refining, slagging-off, stirring and leave standstill stove;
2) under 690-750 ℃ temperature, enable external refining device and fining agent adding set, in aluminium liquid, add the titanium elements of weight proportion according to claim 1, pour into the hot rolling ingot blank then;
3) ingot blank jagsaw head, carry out homogenizing anneal after milling face, annealing temperature is 420-500 ℃, soaking time is 10-18 hour;
4) ingot blank is rolled into the thick sheet material of 5.0-5.5mm;
5) to be placed on temperature be that sheet material is cooled to normal temperature to taking out after warm 2-4 hour in 340-400 ℃ the annealing furnace for sheet material that 5.0-5.5mm is thick;
6) plate rolling that 5.0-5.5mm is thick becomes the thick sheet material of 1.0-1.3mm on cold-rolling mill;
7) sheet material that 1.0-1.3mm is thick is placed on and carries out process annealing in the annealing furnace, and annealing temperature is 300-380 ℃, and sheet material keeps taking out after 2-5 hour to temperature, is cooled to normal temperature;
8) sheet material that 1.0-1.3mm is thick rolls into the aluminum strip of 0.13-0.18mm on cold-rolling mill;
9) aluminum strip of 0.13-0.18mm is carried out straightening on stretch bending-straightening machine, make the requirement up to specification of its template;
10) aluminum strip with 0.13-0.18mm is placed in the heat treatment furnace, under 90-150 ℃ of temperature, is incubated 4-8 hour, removes the material internal stress;
11) slitting: the aluminum strip slitting itemize of the 0.13-0.18mm that will cross through stabilization treatment becomes required specification, makes aluminum alloy band for jalousie.
3, the manufacture method of aluminum alloy band for jalousie according to claim 2, it is characterized in that: in step 1), the remelting industrial raw material is fine aluminium ingot, ferro-aluminum intermediate alloy ingot, aluminium silicon intermediate alloy ingot, aluminum bronze intermediate alloy ingot, aluminium manganese intermediate alloy ingot, aluminium chromium hardener ingot, magnesium ingot, rare earth metal ingot bar.
4, the manufacture method of aluminum alloy band for jalousie according to claim 3 is characterized in that: described remelting industrial raw material is fine aluminium ingot, chalybeate, silicea, copper agent, manganese agent, chromium agent, magnesium ingot, rare earth metal ingot bar.
5, the manufacture method of aluminum alloy band for jalousie according to claim 2 is characterized in that: in step 2) casting process in, be to guarantee the cast inner quality, casting speed is 40-60mm/min.
6, the manufacture method of aluminum alloy band for jalousie according to claim 2, it is characterized in that: in the course of hot rolling of step 4), for surface quality and the inherent tissue that guarantees course of hot rolling, start rolling temperature is controlled at 440-490 ℃, finishing temperature is controlled at 250-300 ℃, hot rolling emulsion concentration is controlled at 3.0-5.0%, and the pH value is controlled at 7.5-8.5.
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