CN103409671A - Aluminium alloy profile for building template, and preparation method thereof - Google Patents
Aluminium alloy profile for building template, and preparation method thereof Download PDFInfo
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- CN103409671A CN103409671A CN2013103195187A CN201310319518A CN103409671A CN 103409671 A CN103409671 A CN 103409671A CN 2013103195187 A CN2013103195187 A CN 2013103195187A CN 201310319518 A CN201310319518 A CN 201310319518A CN 103409671 A CN103409671 A CN 103409671A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 114
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 52
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 45
- 238000001816 cooling Methods 0.000 claims abstract description 45
- 239000004411 aluminium Substances 0.000 claims abstract description 44
- 238000001125 extrusion Methods 0.000 claims abstract description 40
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 27
- 239000011777 magnesium Substances 0.000 claims abstract description 27
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 239000010936 titanium Substances 0.000 claims abstract description 26
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 25
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 25
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 25
- 239000011701 zinc Substances 0.000 claims abstract description 25
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 25
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 25
- 239000011651 chromium Substances 0.000 claims abstract description 24
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000005266 casting Methods 0.000 claims description 32
- 239000000203 mixture Substances 0.000 claims description 29
- 229910052710 silicon Inorganic materials 0.000 claims description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000011572 manganese Substances 0.000 claims description 25
- 239000010703 silicon Substances 0.000 claims description 25
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 24
- 229910052748 manganese Inorganic materials 0.000 claims description 24
- 230000032683 aging Effects 0.000 claims description 22
- 239000000779 smoke Substances 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 20
- 238000000265 homogenisation Methods 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 10
- 239000000956 alloy Substances 0.000 abstract description 14
- 229910045601 alloy Inorganic materials 0.000 abstract description 10
- 238000010791 quenching Methods 0.000 abstract description 10
- 239000003595 mist Substances 0.000 abstract description 7
- 230000000171 quenching effect Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 2
- 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 abstract 1
- 229920001296 polysiloxane Polymers 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 description 14
- 238000004458 analytical method Methods 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 229910000553 6063 aluminium alloy Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910019752 Mg2Si Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Extrusion Of Metal (AREA)
Abstract
The invention discloses an aluminium alloy profile for a building template, and a preparation method thereof. The aluminium alloy profile comprises the following components in percentage by weight: 0.85-0.95 percent of magnesium, 0.06-0.65 percent of silicone, 0.15-0.20 percent of copper, 0.05-0.08 percent of manganese, 0.03-0.05 percent of zirconium, 0.04-0.06 percent of chromium, 0.008-0.012 percent of titanium, 0-0.2 percent of iron, 0-0.10 percent of zinc and the balance of aluminium. The aluminium alloy profile provided by the invention has the advantages that the tensile strength is more than 300 MPa, the yield strength is more than 260 MPa, the breakage elongation percentage is more than 12 percent, the tenacity, the weldability and the corrosion resistance are obviously improved compared with that of an original 6061 alloy, the pendulum impact value is more than 20 J/cm<2>, the welding coefficient is not less than 0.6, smaller quench sensitivity is provided, and critical quenching speed is dropped from 10 DEG C/S of the original alloy to 7 DEG C/S; during the processing of the aluminium alloy profile, air cooling is adopted to process an extrusion outlet with the temperature of 450 DEG C in a high-temperature segment as well as an extrusion outlet with the temperature of being smaller than or equal to 25 DEG C in a low-temperature segment, while a moderate-temperature segment, namely a quench sensitive area with the temperature of 450-250 DEG C utilizes water mist to replace direct water-cooling, so that the difficulty for controlling cross section deformation of the profile in the production field is greatly reduced.
Description
Technical field
The invention belongs to formula and the preparing technical field of aluminum alloy materials, the present invention is specifically related to a kind of building template aluminium alloy extrusions and preparation method thereof.
Background technology
The template of aluminum current form work engineering system and external corner material all adopt 6063 and 6061 aluminium alloy extruded making, and the main component of two kinds of aluminium alloys is aluminium, magnesium, silicon, wherein, in 6061 aluminium alloys, also are added with two kinds of auxiliary elements of copper and chromium.6063 aluminium alloys have superior press workability and Extrusion-quenched performance, can produce at a high speed complex-shaped section bar, low production cost in enormous quantities; But this Mechanical Properties of Aluminum Alloys is not high; The good over-all properties such as strong during 6061 aluminium alloys have, anti-corrosion, as can to weld, become the main raw in light structures application recent decades; But its extrusion processing performance and Extrusion-quenched poor performance, in order to obtain its stable static tensile property and notch toughness, usually require the water quenching of adopting best extrusion machine front, thereby cause that squeeze wood distorts, causes the reduction of production efficiency and yield rate and the raising of corresponding production cost.And two kinds of aluminium alloys, by traditional technology production, all produce without separating out band at intergranular, cause aluminium alloy toughness, anticorrosion stress-resistant decline, limited the performance performance of material.
Summary of the invention
One of purpose of the present invention is that toughness is better in order to overcome degradation deficiency under existing aluminium alloy toughness, anticorrosion stress-resistant, to provide a kind of strength property high, and solidity to corrosion is stronger, and quenching sensitive is lower, and the higher building template aluminium alloy extrusions of cost performance.
Two of purpose of the present invention is to provide the preparation method of a kind of building template with aluminium alloy extrusions, and the method is simple, can produce the quality that improves product.
One of purpose of the present invention is achieved through the following technical solutions:
A kind of building template aluminium alloy extrusions is characterized in that: magnesium 0.85～0.95%, silicon 0.60～0.65%, copper 0.15～0.20%, manganese 0.05～0.08%, zirconium 0.03～0.08%, chromium 0～0.06%, titanium 0.007～0.012%, iron 0～0.2%, zinc 0～0.10%, surplus is aluminium.
One of purpose of the present invention can also be achieved through the following technical solutions:
Further: the composition of aluminium alloy and weight percent thereof are: magnesium 0.85%, and silicon 0.60%, copper 0.15%, manganese 0.05%, zirconium 0.03%, chromium 0.04%, titanium 0.008%, iron 0.01%, zinc 0.01%, surplus is aluminium.
Further: the composition of aluminium alloy and weight percent thereof are: magnesium 0.90%, and silicon 0.62%, copper 0.18%, manganese 0.06%, zirconium 0.04%, chromium 0.05%, titanium 0.01%, iron 0.1%, zinc 0.08%, surplus is aluminium.
Further: the composition of aluminium alloy and weight percent thereof are: magnesium 0.95%, and silicon 0.65%, copper 0.20%, manganese 0.08%, zirconium 0.05%, chromium 0.06%, titanium 0.012%, iron 0.2%, zinc 0.10%, surplus is aluminium.
Further: the composition of aluminium alloy and weight percent thereof are: magnesium 0.92%, and silicon 0.63%, copper 0.19%, manganese 0.05%, zirconium 0.05%, chromium 0.04%, titanium 0.008%%, iron 0.19%, zinc 0.09%, surplus is aluminium.
Further: the composition of aluminium alloy and weight percent thereof are: magnesium 0.87%, and silicon 0.60%, copper 0.17%, manganese 0.05%, zirconium 0.04%, chromium 0.05%, titanium 0.007%%, iron 0.17%, zinc 0.05%, surplus is aluminium.
Further: the composition of aluminium alloy and weight percent thereof are: magnesium 0.90%, and silicon 0.62%, copper 0.16%, manganese 0.05%, zirconium 0.08%, titanium 0.008%, iron 0.02%, zinc 0.03%, surplus is aluminium.
Two of purpose of the present invention is achieved through the following technical solutions:
A kind of building template preparation method of aluminium alloy extrusions is characterized in that:
1) by weight percent, be: magnesium 0.85～0.95%, silicon 0.60～0.65%, copper 0.15～0.20%, manganese 0.05～0.08%, zirconium 0.03～0.08%, chromium 0～0.06%, titanium 0.007～0.012%, iron 0～0.2%, zinc 0～0.10%, surplus are that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 565 ± 5 ℃, heated 5～10 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃,
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into section bar by 10～15m/min velocity of discharge, the section bar mold temperature out is at 535～540 ℃, within 40 seconds of section bar passes through beginning, employing speed is that 1.5～2.5 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by water smoke, then adopt air cooling to room temperature;
4) by the deflection tension leveling of 1%-1.5%, be cut into product, frame up and repair mouth;
5) 8-12 to be stopped hour laggard aging oven processed, and 175 ± 5 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
Further: by weight percent, be 1): magnesium 0.87%, silicon 0.60%, copper 0.177%, manganese 0.05%, zirconium 0.04%, chromium 0.05%, titanium 0.007%, iron 0.17%, zinc 0.05%, surplus are that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot, and described ingot casting is the casting rod that diameter is Φ 260mm;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 560 ℃, heated 9 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into section bar by the 10m/min velocity of discharge, the section bar mold temperature out is at 535～540 ℃, within 40 seconds of section bar passes through beginning, employing speed is that 2 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by water smoke, then adopt air cooling to room temperature, described section bar is solid shape;
4) by 1.5% deflection tension leveling, be cut into product, frame up and repair mouth;
5) wait to stop 9 hours laggard aging ovens and process, 175 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
1, the present invention, by the content of principal element Mg and Si in the optimization aluminium alloy, in 1.40% ± 0.05% scope, has guaranteed that aluminum alloy materials meets the requirements of mechanical property by the overall control of Mg2Si in alloy.Simultaneously, in aluminium alloy, add and be not more than 0.2% copper, the loss of strength caused because parking effect aborning to make up aluminium alloy by its extra solution strengthening effect.
2, the present invention controls the Cr element in aluminium alloy, quenching sensitive had the greatest impact extremely minimum as far as possible or fully phases out, and to suppress the recrystallize ability the most by force but on the minimum Zr element replacement of quenching sensitive impact, to reduce the quenching sensitive of aluminium alloy.
3, the present invention is usingd by aluminium alloy Central Plains the Mn element that the impurity form exists and is controlled in the 0.05-0.08% scope as a kind of auxiliary element, purpose is in aluminium alloy, to form the disperse phase below size 0.1 micron order, effect gang with Zr, reduce or eliminate without separating out district, the recrystallize and the grain growth that suppress aluminium alloy, slip band is evenly expanded, reduced the stress concentration of grain boundaries, improved unit elongation and the toughness of aluminium alloy; Simultaneously, accelerate aluminium alloy β (AlFeSi) conversion of α (AlFeSi) phase in opposite directions in Homogenization Process, be conducive to improve extrusion performance and the surface quality of aluminium alloy.
4, the present invention is by the free silica basically eliminate in aluminium alloy, simultaneously impurity iron is controlled to 0.2% the level (more low better) that is not more than, and grain-refining agent is changed to Al-Ti-C by traditional Al-Ti-B, and the content of Ti is controlled to 0.01% ± 0.002% scope, on the whole, reduce the foreign matter content of aluminium alloy, material more " is cleaned ", thereby put forward heavy alloyed weldability and anti-spot corrosion, intergranular corrosion resistance, shock proof ability comprehensively.
5, aluminium alloy of the present invention, when being processed into section bar, adopts high-temperature homogenization to process and relatively low aging temp, and wherein, homogenization temperature is brought up to 565 ± 5 ℃; Aging temp is reduced to 175 ± 5 ℃, and supersaturation precipitation particle and timeliness are separated out, the size of particle and be uniformly distributed and obtain good control, and the overall control of the intermetallic compound in its final aluminum alloy organization is in the 1.8-2.0% left and right.
Beneficial effect of the present invention:
1, aluminum alloy materials of the present invention is non-recrystallize fibrous tissue state (recrystallized structure is less than 50%) substantially; toughness, weldability and solidity to corrosion are significantly improved than former 6061 alloys; more than the pendulum-type impact value can reach 20J/cm2; than former alloy, improve approximately 30%; and when adopting 4043 alloy electrodes to carry out Shielding gas, the welding coefficient ratio of T6 state matrix strength (the welded heat affecting zone intensity with) is not less than 0.6.
2, aluminum alloy materials of the present invention has less quenching sensitive, and the critical hardening speed of cooling is down to about 7 ℃/S from 10 ℃/s of former alloy.Under the large working condition of aluminium alloy sections, high temperature section extruding temperature out～450 ℃ and low-temperature zone≤250 ℃ employing are air-cooled, and the cooling replacement direct water-cooling of water smoke is adopted in namely quench 450 ℃～250 ℃ of sensitive areas of middle-temperature section, greatly reduce the control difficulty of production scene section bar section deformation.
3, aluminium alloy extrusions of the present invention, its tensile strength can improve 15%, more than reaching 300MPa; Yield strength can improve 8%, more than reaching 260MPa; Tension set can improve 50%, reaches more than 12%.
Embodiment
Below in conjunction with the present invention is further illustrated.
Specific embodiment 1:
A kind of building template preparation method of aluminium alloy extrusions:
1) according to ordinary method preparation aluminium alloy of the present invention, the weight percent summation of each component is 100%, by weight percent, be (sampling analysis chemical composition in the casting flow table): magnesium 0.92%, silicon 0.63%, copper 0.19%, manganese 0.05%, zirconium 0.05%, chromium 0.04%, titanium 0.008%%, iron 0.19%, zinc 0.09%, surplus are that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot, and described surplus is that the aluminium in aluminium contains 0.15% impurity, and same with the impurity phase contained in existing aluminium, ingot casting is the casting rod that diameter is Φ 260mm;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 560 ℃, heated 7 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into solid shape by the 15m/min velocity of discharge, solid shape mould outlet temperature is at 535～540 ℃, within 40 seconds of solid shape passes through beginning (the about 10m of profile length), employing speed is that 1.5 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by mist cold house (length is about 8m) water smoke, then adopt air cooling to room temperature;
4) by 1% deflection tension leveling, be cut into product, frame up and repair mouth;
5) wait to stop 9 hours laggard aging ovens and process, 173 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
Check that aluminium alloy extrusions properties of the present invention is as shown in the table:
Specific embodiment 2:
A kind of building template preparation method of aluminium alloy extrusions:
1) according to ordinary method preparation aluminium alloy of the present invention, the weight percent summation of each component is 100%, by weight percent, be (sampling analysis chemical composition in the casting flow table): magnesium 0.87%, silicon 0.60%, copper 0.17%, manganese 0.05%, zirconium 0.04%, chromium 0.05%, titanium 0.007%%, iron 0.17%, zinc 0.05%, surplus are that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot, and described surplus is that the aluminium in aluminium contains 0.1% impurity, and same with the impurity phase contained in existing aluminium, ingot casting is the casting rod that diameter is Φ 260mm;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 560 ℃, heated 9 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into solid shape by the 10m/min velocity of discharge, solid shape mould outlet temperature is at 535～540 ℃, within 40 seconds of solid shape passes through beginning (the about 6.5m of profile length), employing speed is that 2 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by mist cold house (length is about 8m) water smoke, then adopt air cooling to room temperature;
4) by 1.5% deflection tension leveling, be cut into product, frame up and repair mouth;
5) wait to stop 9 hours laggard aging ovens and process, 175 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
Check that aluminium alloy extrusions properties of the present invention is as shown in the table:
Specific embodiment 3:
A kind of building template preparation method of aluminium alloy extrusions:
1) according to ordinary method preparation aluminium alloy of the present invention, the weight percent summation of each component is 100%, by weight percent, be (sampling analysis chemical composition in the casting flow table): magnesium 0.90%, silicon 0.62%, copper 0.16%, manganese 0.05%, zirconium 0.08%, titanium 0.008%, iron 0.02%, zinc 0.03%, surplus is that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot, described surplus is that the aluminium in aluminium contains 0.08% impurity, and with existing aluminium in the impurity phase that contains with, ingot casting is the casting rod that diameter is Φ 260mm;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 560 ℃, heated 9 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into solid shape by the 15m/min velocity of discharge, solid shape mould outlet temperature is at 535～540 ℃, within 40 seconds of solid shape passes through beginning (the about 10m of profile length), employing speed is that 2 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by mist cold house (length is about 8m) water smoke, then adopt air cooling to room temperature;
4) by 1.5% deflection tension leveling, be cut into product, frame up and repair mouth;
5) wait to stop 10 hours laggard aging ovens and process, 175 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
Check that aluminium alloy extrusions properties of the present invention is as shown in the table:
Specific embodiment 4:
A kind of building template preparation method of aluminium alloy extrusions:
1) according to ordinary method preparation aluminium alloy of the present invention, the weight percent summation of each component is 100%, by weight percent, be (sampling analysis chemical composition in the casting flow table): magnesium 0.85%, silicon 0.60%, copper 0.15%, manganese 0.05%, zirconium 0.03%, chromium 0.04%, titanium 0.008%, iron 0.01%, zinc 0.01%, surplus are that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot, and described surplus is that the aluminium in aluminium contains 0.05% impurity, and same with the impurity phase contained in existing aluminium, ingot casting is the casting rod that diameter is Φ 260mm;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 565 ℃, heated 5 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into solid shape by the 15m/min velocity of discharge, solid shape mould outlet temperature is at 535～540 ℃, within 40 seconds of solid shape passes through beginning (the about 10m of profile length), employing speed is that 2 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by mist cold house (length is about 8m) water smoke, then adopt air cooling to room temperature;
4) by 1% deflection tension leveling, be cut into product, frame up and repair mouth;
5) wait to stop 8 hours laggard aging ovens and process, 170 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
Specific embodiment 5:
A kind of building template preparation method of aluminium alloy extrusions:
1) according to ordinary method preparation aluminium alloy of the present invention, the weight percent summation of each component is 100%, by weight percent, be (sampling analysis chemical composition in the casting flow table): magnesium 0.90%, silicon 0.62%, copper 0.18%, manganese 0.06%, zirconium 0.04%, chromium 0.05%, titanium 0.01%, iron 0.1%, zinc 0.08%, surplus are that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot, and described surplus is that the aluminium in aluminium contains 0.01% impurity, and same with the impurity phase contained in existing aluminium, ingot casting is the casting rod that diameter is Φ 260mm;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 565 ℃, heated 8 hours, continue air cooling in the dislocation atmosphere after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into solid shape by the 10m/min velocity of discharge, solid shape mould outlet temperature is at 535～540 ℃, within 40 seconds of solid shape passes through beginning (the about 6.5m of profile length), employing speed is that 1.5 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by mist cold house (length is about 8m) water smoke, then adopt air cooling to room temperature;
4) by 1.3% deflection tension leveling, be cut into product, frame up and repair mouth;
5) wait to stop 9 hours laggard aging ovens and process, 175 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
Specific embodiment 6:
A kind of building template preparation method of aluminium alloy extrusions:
1) according to ordinary method preparation aluminium alloy of the present invention, the weight percent summation of each component is 100%, by weight percent, be (sampling analysis chemical composition in the casting flow table): magnesium 0.95%, silicon 0.65%, copper 0.20%, manganese 0.08%, zirconium 0.05%, chromium 0.06%, titanium 0.012%, iron 0.2%, zinc 0.10%, surplus are that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot, and described surplus is that the aluminium in aluminium contains 0.07% impurity, and same with the impurity phase contained in existing aluminium, ingot casting is the casting rod that diameter is Φ 260mm;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 570 ℃, heated 10 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into solid shape by the 15m/min velocity of discharge, solid shape mould outlet temperature is at 535～540 ℃, within 40 seconds of solid shape passes through beginning (the about 10m of profile length), employing speed is that 2.5 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by mist cold house (length is about 8m) water smoke, then adopt air cooling to room temperature;
4) by 1.5% deflection tension leveling, be cut into product, frame up and repair mouth;
5) wait to stop 12 hours laggard aging ovens and process, 180 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
Claims (9)
1. building template aluminium alloy extrusions, it is characterized in that: the composition of aluminium alloy and weight percent thereof are: magnesium 0.85～0.95%, silicon 0.60～0.65%, copper 0.15～0.20%, manganese 0.05～0.08%, zirconium 0.03～0.08%, chromium 0～0.06%, titanium 0.007～0.012%, iron 0～0.2%, zinc 0～0.10%, surplus are aluminium.
2. a kind of building template aluminium alloy extrusions according to claim 1, it is characterized in that: the composition of aluminium alloy and weight percent thereof are: magnesium 0.85%, silicon 0.60%, copper 0.15%, manganese 0.05%, zirconium 0.03%, chromium 0.04%, titanium 0.008%, iron 0.01%, zinc 0.01%, surplus is aluminium.
3. a kind of building template aluminium alloy extrusions according to claim 1, it is characterized in that: the composition of aluminium alloy and weight percent thereof are: magnesium 0.90%, silicon 0.62%, copper 0.18%, manganese 0.06%, zirconium 0.04%, chromium 0.05%, titanium 0.01%, iron 0.1%, zinc 0.08%, surplus is aluminium.
4. a kind of building template aluminium alloy extrusions according to claim 1, it is characterized in that: the composition of aluminium alloy and weight percent thereof are: magnesium 0.95%, silicon 0.65%, copper 0.20%, manganese 0.08%, zirconium 0.05%, chromium 0.06%, titanium 0.012%, iron 0.2%, zinc 0.10%, surplus is aluminium.
5. a kind of building template aluminium alloy extrusions according to claim 1, it is characterized in that: the composition of aluminium alloy and weight percent thereof are: magnesium 0.92%, silicon 0.63%, copper 0.19%, manganese 0.05%, zirconium 0.05%, chromium 0.04%, titanium 0.008%%, iron 0.19%, zinc 0.09%, surplus are aluminium.
6. a kind of building template aluminium alloy extrusions according to claim 1, it is characterized in that: the composition of aluminium alloy and weight percent thereof are: magnesium 0.87%%, silicon 0.60%, copper 0.17%, manganese 0.05%, zirconium 0.04%, chromium 0.05%, titanium 0.007%%, iron 0.17%, zinc 0.05%, surplus are aluminium.
7. a kind of building template aluminium alloy extrusions according to claim 1, it is characterized in that: the composition of aluminium alloy and weight percent thereof are: magnesium 0.9%, silicon 0.62%, copper 0.16%, manganese 0.05%, zirconium 0.08%, titanium 0.008%, iron 0.02%, zinc 0.03%, surplus is aluminium.
8. a building template by the preparation method of aluminium alloy extrusions, is characterized in that:
1) by weight percent, be: magnesium 0.85～0.95%, silicon 0.60～0.65%, copper 0.15～0.20%, manganese 0.05～0.08%, zirconium 0.03～0.08%, chromium 0～0.06%, titanium 0.007～0.012%, iron 0～0.2%, zinc 0～0.10%, surplus is that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 565 ± 5 ℃, heated 5～10 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into section bar by 10～15m/min velocity of discharge, the section bar mold temperature out is at 535～540 ℃, within 40 seconds of section bar passes through beginning, employing speed is that 1.5～2.5 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by water smoke, then adopt air cooling to room temperature;
4) by the deflection tension leveling of 1%-1.5%, be cut into product, frame up and repair mouth;
5) 8-12 to be stopped hour laggard aging oven processed, and 175 ± 5 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
9. a kind of building template according to claim 8 is by the preparation method of aluminium alloy extrusions, it is characterized in that: by weight percent, be 1): magnesium 0.87%, silicon 0.60%, copper 0.177%, manganese 0.05%, zirconium 0.04%, chromium 0.05%, titanium 0.007%, iron 0.17%, zinc 0.05%, surplus are that the aluminum alloy composition of aluminium is cast as aluminium alloy cast ingot, and described ingot casting is the casting rod that diameter is Φ 260mm;
2) aluminium alloy cast ingot is carried out to the high-temperature homogenization processing under 560 ℃, heated 9 hours, continue air cooling in the dislocation atmosphere to room temperature after then adopting strong wind cooling or water smoke to be cooled to 150 ℃;
3) by ingot casting on request length cut into the extruding ingot blank, send into after induction furnace quickly heats up to 480 ℃ and be squeezed into section bar by the 10m/min velocity of discharge, the section bar mold temperature out is at 535～540 ℃, within 40 seconds of section bar passes through beginning, employing speed is that 2 ℃/s strong wind cooling is cooled to 450 ℃ by section bar, within 28 seconds of following, be cooled to approximately 250 ℃ by water smoke, then adopt air cooling to room temperature, described section bar is solid shape;
4) by 1.5% deflection tension leveling, be cut into product, frame up and repair mouth;
5) wait to stop 9 hours laggard aging ovens and process, 175 ℃ of aging temps, be incubated 10 hours, makes aluminium alloy extrusions of the present invention.
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