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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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 71
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 54
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000000137 annealing Methods 0.000 claims abstract description 38
- 238000005098 hot rolling Methods 0.000 claims abstract description 31
- 238000005097 cold rolling Methods 0.000 claims abstract description 27
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 16
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 16
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010936 titanium Substances 0.000 claims abstract description 15
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 15
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011777 magnesium Substances 0.000 claims abstract description 12
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000011651 chromium Substances 0.000 claims abstract description 11
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011572 manganese Substances 0.000 claims abstract description 9
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 9
- 238000003723 Smelting Methods 0.000 claims abstract description 7
- 238000003801 milling Methods 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 34
- 239000004411 aluminium Substances 0.000 claims description 28
- 229910045601 alloy Inorganic materials 0.000 claims description 25
- 239000000956 alloy Substances 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- -1 aluminium manganese Chemical compound 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 13
- 238000007670 refining Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 239000006025 fining agent Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 229910000906 Bronze Inorganic materials 0.000 claims description 6
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 claims description 6
- QRRWWGNBSQSBAM-UHFFFAOYSA-N alumane;chromium Chemical compound [AlH3].[Cr] QRRWWGNBSQSBAM-UHFFFAOYSA-N 0.000 claims description 6
- 239000010974 bronze Substances 0.000 claims description 6
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000839 emulsion Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000004848 polyfunctional curative Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 238000002791 soaking Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 238000005520 cutting process Methods 0.000 abstract 2
- 238000005452 bending Methods 0.000 abstract 1
- 238000000265 homogenisation Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000005204 segregation Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 239000000654 additive Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000005275 alloying Methods 0.000 description 2
- 235000013527 bean curd Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
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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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| CN107974593A (en) * | 2017-11-23 | 2018-05-01 | 莫祖勇 | A kind of used in blinds albronze band and its manufacture method |
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Address after: 215500 Baimaixi, Guli Town, Changshu City, Jiangsu Province Patentee after: Jiangsu Changaluminium Group Co., Ltd. Address before: 2132 West Baimi Town, Changshu City, Jiangsu Province Patentee before: Jiangsu Alcha Aluminium Co., Ltd. |