CN104046861A - High-strength corrosion-resistant aluminum alloy extruded material and manufacturing method thereof - Google Patents
High-strength corrosion-resistant aluminum alloy extruded material and manufacturing method thereof Download PDFInfo
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- CN104046861A CN104046861A CN201410336159.0A CN201410336159A CN104046861A CN 104046861 A CN104046861 A CN 104046861A CN 201410336159 A CN201410336159 A CN 201410336159A CN 104046861 A CN104046861 A CN 104046861A
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- 239000000463 material Substances 0.000 title claims abstract description 24
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000005260 corrosion Methods 0.000 title abstract 3
- 230000007797 corrosion Effects 0.000 title abstract 3
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 8
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 8
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 239000004411 aluminium Substances 0.000 claims description 29
- 229910052782 aluminium Inorganic materials 0.000 claims description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 26
- 239000000956 alloy Substances 0.000 claims description 20
- 229910045601 alloy Inorganic materials 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 18
- 235000012438 extruded product Nutrition 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000007670 refining Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 8
- 229910018134 Al-Mg Inorganic materials 0.000 claims description 6
- 229910018125 Al-Si Inorganic materials 0.000 claims description 6
- 229910018467 Al—Mg Inorganic materials 0.000 claims description 6
- 229910018520 Al—Si Inorganic materials 0.000 claims description 6
- -1 aluminium titanium boron Chemical compound 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 5
- 229910018580 Al—Zr Inorganic materials 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 229910052748 manganese Inorganic materials 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000005482 strain hardening Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 description 5
- 229910001344 5052 aluminium alloy Inorganic materials 0.000 description 3
- 150000001398 aluminium Chemical class 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- GANNOFFDYMSBSZ-UHFFFAOYSA-N [AlH3].[Mg] Chemical class [AlH3].[Mg] GANNOFFDYMSBSZ-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Landscapes
- Extrusion Of Metal (AREA)
- Powder Metallurgy (AREA)
- Conductive Materials (AREA)
Abstract
The invention provides a high-strength corrosion-resistant aluminum alloy extruded material which comprises the following components in percentage by weight: 0.12-0.16% of Si, 0.18-0.23% of Fe, 2.5-2.55% of Mg, 0.01-0.03% of Ti, 0.12-0.16% of RE material, no more than 0.08% of Cu, no more than 0.08% of Mn, no more than 0.08% of Cr, no more than 0.08% of Zn and the balance of Al. According to the invention, a small quantity of elements La, Sc and Zr are added, the aluminum alloy extruded material is excellent in weldability, formability, cold workability, corrosion resistance, oxidation resistance, fatigue resistance and toughness, has high work hardening rate and can be polished, thereby greatly prolonging the service life of the material, saving the maintenance cost and widening the application range of the invention to some extent.
Description
Technical field
The present invention relates to the manufacture method of aluminum alloy materials, be specifically related to a kind of high-strength corrosion-resisting aluminium alloy extruded product and manufacture method thereof.
Background technology
Alleviating transport facility sole mass is the main flow of current transport facility design, particularly for aviation.5052 aluminium alloys are aluminum-magnesium series row alloys, there is medium tenacity and good forming technology, the section bar thin-wall part form that is sheet metal component and complicated shape on processing structure, is widely used in the industrial circles such as aviation, automobile, boats and ships, electric car, point building and furniture at present.But in the demand for development of modern ships, the sea water resistance of 5052 aluminium alloys and intensity aspect more and more show the requirement that can not meet development.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of high-strength corrosion-resisting aluminium alloy extruded product and manufacture method thereof, thereby effectively solves the requirement to material structure intensity and erosion resistance in modern ships production.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A high-strength corrosion-resisting aluminium alloy extruded product, this material is comprised of each component of following weight percentage: Si:0.12 ~ 0.16%; Fe:0.18 ~ 0.23%; Mg:2.5 ~ 2.55%; Ti:0.01 ~ 0.03%; RE material: 0.12 ~ 0.16%; Cu≤0.08%; Mn≤0.08%; Cr≤0.08%; Zn≤0.08%; Surplus is Al.
Wherein, above-mentioned RE material is comprised of La, Sc, Zr, and three's weight percent is controlled at 2:1:1.
The manufacture method of above-mentioned high-strength corrosion-resisting aluminium alloy extruded product, comprises the following steps:
(1) prepare: by formula, get aluminium ingot, Al-Si master alloy, Al-Mg master alloy, iron powder, aluminium titanium boron wire and RE material, and aluminium ingot is dried;
(2) melting: the aluminium ingot of oven dry is dropped into heat fused in smelting furnace and become aluminium liquid, heated and stirred, temperature is controlled at 710 ~ 740 ℃, insulation 40 ~ 50min, and sprinkle 1/1500 ~ 1/2500 in the slagging agent of aluminium liquid total amount, skim;
(3) batching: Al-Si master alloy, Al-Mg master alloy and iron powder are added successively in the aluminium liquid after skimming and melted, and temperature is controlled at 730 ~ 750 ℃, insulation 25 ~ 35min;
(4) refining: add refining agent refining in the mixed molten liquid obtaining in step (3), temperature is controlled at 730 ~ 750 ℃, insulation 0.5 ~ 3h;
(5) rotten: in the mixed molten liquid after refining, add RE material, it adds the mode that adopts Al-La, Al-Sc and Al-Zr master alloy, and stirs, and temperature is controlled at 730 ~ 750 ℃, insulation 25 ~ 35min, skims;
(6) standing: by the standing 20 ~ 30min of mixed molten liquid after rotten;
(7) casting: put into tank cooling, add aluminium titanium boron wire to be cast as aluminium bar simultaneously;
(8) extruding: send into two moving horizontal forward extrusion machines after aluminium bar is preheated to 480 ~ 500 ℃ and push, the preheating temperature of container is controlled at 400-430 ℃, and extruder outlet is in line quench treatment;
(9) aftertreatment: sawing, packing, warehouse-in.
Advantage of the present invention is: in aluminium alloy extruded product of the present invention, added micro-La, Sc, Zr element, there is good weldability, formability, cold-workability, erosion resistance, oxygen-proof property, fatigue resistance and toughness, work hardening rate is high, can polishing, greatly extended the work-ing life of material, save maintenance cost, also expanded to a certain extent the scope of application of the present invention.
Embodiment:
Below in conjunction with each embodiment, the invention will be further described, but be not limitation of the present invention:
A high-strength corrosion-resisting aluminium alloy extruded product, this material is comprised of each component of following weight percentage: Si:0.12 ~ 0.16%; Fe:0.18 ~ 0.23%; Mg:2.5 ~ 2.55%; Ti:0.01 ~ 0.03%; RE material: 0.12 ~ 0.16%; Cu≤0.08%; Mn≤0.08%; Cr≤0.08%; Zn≤0.08%; Surplus is Al.
The manufacture method of above-mentioned high-strength corrosion-resisting aluminium alloy extruded product, comprises the following steps:
(1) prepare: by formula, get aluminium ingot, Al-Si master alloy, Al-Mg master alloy, iron powder, aluminium titanium boron wire and RE material, and aluminium ingot is dried;
(2) melting: the aluminium ingot of oven dry is dropped into heat fused in smelting furnace and become aluminium liquid, heated and stirred, temperature is controlled at 710 ~ 740 ℃, insulation 40 ~ 50min, and sprinkle 1/1500 ~ 1/2500 in the slagging agent of aluminium liquid total amount, skim;
(3) batching: Al-Si master alloy, Al-Mg master alloy and iron powder are added successively in the aluminium liquid after skimming and melted, and temperature is controlled at 730 ~ 750 ℃, insulation 25 ~ 35min;
(4) refining: add refining agent refining in the mixed molten liquid obtaining in step (3), temperature is controlled at 730 ~ 750 ℃, insulation 0.5 ~ 3h;
(5) rotten: in the mixed molten liquid after refining, add RE material, it adds the mode that adopts Al-La, Al-Sc and Al-Zr master alloy, and stirs, and temperature is controlled at 730 ~ 750 ℃, insulation 25 ~ 35min, skims;
(6) standing: by the standing 20 ~ 30min of mixed molten liquid after rotten;
(7) casting: put into tank cooling, add aluminium titanium boron wire to be cast as aluminium bar simultaneously.
Embodiment 1
Adopt above-mentioned manufacture method to cast out each component weight percentage to be: Si:0.12%; Fe:0.18%; Mg:2.5%; Ti:0.01%; RE material: 0.12%; Impurity Cu, Mn, Cr and Zn are all below 0.08%; Surplus is the aluminium bar of Al; Then after this aluminium bar being preheated to 480 ℃, send into two moving horizontal forward extrusion machines and push, the preheating temperature of container is controlled at 400 ℃, and extrusion speed is controlled at 7m/min, and extruder outlet is in line quench treatment; Get unit sample and carry out sample, as shown in the table.
Embodiment 2
Adopt above-mentioned manufacture method to cast out each component weight percentage to be: Si:0.14%; Fe:0.21%; Mg:2.55%; Ti:0.02%; RE material: 0.14%; Impurity Cu, Mn, Cr and Zn are all below 0.08%; Surplus is the aluminium bar of Al; Then after this aluminium bar being preheated to 490 ℃, send into two moving horizontal forward extrusion machines and push, the preheating temperature of container is controlled at 420 ℃, and extrusion speed is controlled at 7m/min, and extruder outlet is in line quench treatment; Get unit sample and carry out sample, as shown in the table.
Embodiment 3
Adopt above-mentioned manufacture method to cast out each component weight percentage to be: Si:0.16%; Fe:0.23%; Mg:2.55%; Ti:0.03%; RE material: 0.16%; Impurity Cu, Mn, Cr and Zn are all below 0.08%; Surplus is the aluminium bar of Al; Then after this aluminium bar being preheated to 500 ℃, send into two moving horizontal forward extrusion machines and push, the preheating temperature of container is controlled at 430 ℃, and extrusion speed is controlled at 7m/min, and extruder outlet is in line quench treatment; Get unit sample and carry out sample, as shown in the table.
As can be seen from the above-described embodiment, add the aluminium alloy extruded product after La, Sc, Zr element, its ultimate compression strength, Non-proportional extension degree, elongation after fracture and erosion resistance all than 5052 aluminium alloys of stipulating in GBT3880.2-2006 when the supply status H112 170,70,15,24h/9 is high.
Claims (3)
1. a high-strength corrosion-resisting aluminium alloy extruded product, is characterized in that, this material is comprised of each component of following weight percentage: Si:0.12 ~ 0.16%; Fe:0.18 ~ 0.23%; Mg:2.5 ~ 2.55%; Ti:0.01 ~ 0.03%; RE material: 0.12 ~ 0.16%; Cu≤0.08%; Mn≤0.08%; Cr≤0.08%; Zn≤0.08%; Surplus is Al.
2. high-strength corrosion-resisting aluminium alloy extruded product according to claim 1, is characterized in that, described RE material is comprised of La, Sc, Zr, and three's weight percent is controlled at 2:1:1.
3. a manufacture method for high-strength corrosion-resisting aluminium alloy extruded product as claimed in claim 1 or 2, is characterized in that, comprises the following steps:
(1) prepare: by formula, get aluminium ingot, Al-Si master alloy, Al-Mg master alloy, iron powder, aluminium titanium boron wire and RE material, and aluminium ingot is dried;
(2) melting: the aluminium ingot of oven dry is dropped into heat fused in smelting furnace and become aluminium liquid, heated and stirred, temperature is controlled at 710 ~ 740 ℃, insulation 40 ~ 50min, and sprinkle 1/1500 ~ 1/2500 in the slagging agent of aluminium liquid total amount, skim;
(3) batching: Al-Si master alloy, Al-Mg master alloy and iron powder are added successively in the aluminium liquid after skimming and melted, and temperature is controlled at 730 ~ 750 ℃, insulation 25 ~ 35min;
(4) refining: add refining agent refining in the mixed molten liquid obtaining in step (3), temperature is controlled at 730 ~ 750 ℃, insulation 0.5 ~ 3h;
(5) rotten: in the mixed molten liquid after refining, add RE material, it adds the mode that adopts Al-La, Al-Sc and Al-Zr master alloy, and stirs, and temperature is controlled at 730 ~ 750 ℃, insulation 25 ~ 35min, skims;
(6) standing: by the standing 20 ~ 30min of mixed molten liquid after rotten;
(7) casting: put into tank cooling, add aluminium titanium boron wire to be cast as aluminium bar simultaneously;
(8) extruding: send into two moving horizontal forward extrusion machines after aluminium bar is preheated to 480 ~ 500 ℃ and push, the preheating temperature of container is controlled at 400-430 ℃, and extruder outlet is in line quench treatment;
(9) aftertreatment: sawing, packing, warehouse-in.
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| CN201410336159.0A CN104046861B (en) | 2014-07-16 | 2014-07-16 | A kind of high-strength corrosion-resisting aluminium alloy extruded product and manufacture method thereof |
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| CN201410336159.0A CN104046861B (en) | 2014-07-16 | 2014-07-16 | A kind of high-strength corrosion-resisting aluminium alloy extruded product and manufacture method thereof |
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| CN104046861B CN104046861B (en) | 2016-06-08 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104561699A (en) * | 2015-01-27 | 2015-04-29 | 芜湖新泰联轮模具有限公司 | High-strength aluminum-magnesium alloy material for tire molds |
| CN104726753A (en) * | 2015-03-23 | 2015-06-24 | 苏州市神龙门窗有限公司 | Preparation method of aluminum alloy section for doors/windows |
| CN106399762A (en) * | 2016-11-28 | 2017-02-15 | 安徽省煜灿新型材料科技有限公司 | High-strength corrosion-resistant aluminum alloy profile and preparation method thereof |
| CN106399779A (en) * | 2016-11-28 | 2017-02-15 | 安徽省煜灿新型材料科技有限公司 | High-strength and corrosion-resistant aluminum alloy profile and preparation method thereof |
| CN106399773A (en) * | 2016-11-28 | 2017-02-15 | 安徽省煜灿新型材料科技有限公司 | High-strength and high-toughness aluminum alloy profile |
| CN106435287A (en) * | 2016-11-28 | 2017-02-22 | 安徽省煜灿新型材料科技有限公司 | Plated anti-corrosion aluminum alloy profile and preparation method thereof |
| CN106435302A (en) * | 2016-11-28 | 2017-02-22 | 安徽省煜灿新型材料科技有限公司 | Corrosion-resistant high-temperature-resistant aluminum alloy sectional material and preparing method thereof |
| CN115948683A (en) * | 2022-12-21 | 2023-04-11 | 广东兴发铝业有限公司 | A kind of high strength and high plasticity extruded aluminum alloy and preparation method thereof |
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| CN104561699A (en) * | 2015-01-27 | 2015-04-29 | 芜湖新泰联轮模具有限公司 | High-strength aluminum-magnesium alloy material for tire molds |
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| CN106435287A (en) * | 2016-11-28 | 2017-02-22 | 安徽省煜灿新型材料科技有限公司 | Plated anti-corrosion aluminum alloy profile and preparation method thereof |
| CN106435302A (en) * | 2016-11-28 | 2017-02-22 | 安徽省煜灿新型材料科技有限公司 | Corrosion-resistant high-temperature-resistant aluminum alloy sectional material and preparing method thereof |
| CN106399762B (en) * | 2016-11-28 | 2018-10-09 | 安徽省煜灿新型材料科技有限公司 | A kind of high-strength corrosion-resisting aluminium alloy extrusions and preparation method thereof |
| CN115948683A (en) * | 2022-12-21 | 2023-04-11 | 广东兴发铝业有限公司 | A kind of high strength and high plasticity extruded aluminum alloy and preparation method thereof |
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| CN104046861B (en) | 2016-06-08 |
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Effective date of registration: 20221101 Address after: Room 6, No. 1766, Hong Kong Road, Binjiang Street, Haimen District, Nantong, Jiangsu 226,100 Patentee after: Nantong Jiakun New Material Technology Co.,Ltd. Address before: 226100 room 1, No. 1766, Hong Kong Road, Binjiang street, Haimen City, Nantong City, Jiangsu Province Patentee before: JIANGSU JIALV INDUSTRIAL CO.,LTD. |