CN104561695B - Marine aluminium alloy slab and production method thereof - Google Patents
Marine aluminium alloy slab and production method thereof Download PDFInfo
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- CN104561695B CN104561695B CN201410801807.5A CN201410801807A CN104561695B CN 104561695 B CN104561695 B CN 104561695B CN 201410801807 A CN201410801807 A CN 201410801807A CN 104561695 B CN104561695 B CN 104561695B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
Abstract
The invention discloses a kind of marine aluminium alloy slab and production method thereof.Representing with weight percentage, described marine aluminium alloy slab is by raw material Si 0.15～0.25%, Fe 0.2～0.35%, Cu 0.03～0.07%, Mn 0.45～0.6%, Mg 4.5～4.9%, Cr 0.1～0.2%, Zn 0.1%, Ti 0.015～0.03% and surplus are that Al makes.Its production method include the preparation of raw material, melting, cast, wash one's face, soaking, hot fine rolling, annealing, cold rolling, Stabilizing Heat Treatment and subsequent heat treatment, finally obtain product marine aluminium alloy slab.Through experiment test, the product aluminum alloy plate materials intercrystalline corrosion degree of depth of the present invention is below 40 μm, it is possible to meet the requirement of the highly corrosion resistant of aluminium alloy thick plate peculiar to vessel under adverse circumstances.
Description
Technical field
The present invention relates to the production method of a kind of Aluminum alloy thick plate, particularly relate to a kind of marine aluminium alloy slab and production method thereof.
Background technology
Aluminium alloy is a most widely used class non-ferrous metal structural material in industry, because its density is low, strength ratio is higher, good near or above high-quality steel, plasticity, and there is the performances such as excellent electric conductivity, heat conductivity and corrosion stability, various section bar can be processed into, be widely used in the aspects such as machine-building, Transport Machinery, dynamic power machine and aircraft industry.
In recent years, the development advanced by leaps and bounds along with domestic and international shipbuilding industry, alleviate hull mass, improve ship's speed, seek to replace the aluminum alloy materials of iron and steel parts, it has also become the vital task that aluminum processing industry and shipbuilding industry face.
In order to alleviate weight, improve antiseptic property and improve ship's speed, passenger steamer and the consumption of ships aluminium alloy thick plate in shipping industry are gradually increased.But marine environment very severe, this just requires that structural material possesses the performances such as certain tensile strength, yield strength, percentage elongation and shock resistance, additionally in view of structure and the use environment of hull, in addition it is also necessary to hull material has preferable welding performance and decay resistance.At present, the sheet material produced can't fully meet the requirement of the ship highly corrosion resistant of some work under bad environment.Therefore, the decay resistance of marine aluminium alloy slab needs to improve further.
Also part document is had to report currently, with respect to marine aluminum alloy plate aspect.Such as: 1, Application No. 201310688384.6, the patent of invention of entitled " preparation method of a kind of marine aluminium alloy section ", each elementary composition mass percent of this patent aluminium alloy extrusions is Si 1.2-1.9, Mg 0.7-1.3, Mn
0.5-1.0、Fe 3.6-4.8、Cr
0.3-0.5、Zn 0.2-0.3、Ti
0.05-0.1、Cu0.04-0.07、Sn0.4-0.8、V0.2-0.5、Co0.1-0.3、Ta 0.03-0.06、Rh 0.02-0.04、Eu
0.02-0.03, Tm 0.01-0.02, surplus is Al.2, Application No. 201110418732.9, the application for a patent for invention of entitled " production method of marine aluminum alloy plate ", the production method of marine aluminum alloy plate disclosed in this patent, including: founding aluminium alloy, in fusion-casting process, control the proportion shared by alloying element, select the mass content of magnesium between 4.0-4.5%.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of marine aluminium alloy slab and production method thereof.Utilize technical solution of the present invention to produce marine aluminium alloy slab, can effectively solve existing sheet material and can not fully meet the problem of ship highly corrosion resistant requirement under some harsh environments.
In order to solve the problems referred to above, the present invention adopts the technical scheme that:
The present invention provides a kind of marine aluminium alloy slab, represents with weight percentage, and described marine aluminium alloy slab is by raw material Si
0.15～0.25%, Fe
0.2～0.35%, Cu
0.03～0.07%, Mn
0.45～0.6%, Mg
4.5～4.9%, Cr
0.1～0.2%, Zn
0.1%, Ti 0.015～0.03% and surplus be that Al makes.
A kind of production method of above-mentioned marine aluminium alloy slab, including preparation, melting, casting, milling face, soaking, hot fine rolling, annealing, cold rolling, Stabilizing Heat Treatment and the subsequent heat treatment of raw material, wherein:
In a, casting process, casting temperature is 705～715 DEG C, and casting water temperature is 23～27 DEG C, and casting speed is 30～40mm/min；
When b, milling face, big unilateral milling face amount is 25～40mm, and little unilateral milling face amount is 15～25mm；
Using heating furnace that aluminium alloy cast ingot is carried out heat treatment when c, soaking, ingot casting heating cycle in heating furnace is: first stage ingot casting temperature is 500～520 DEG C, temperature retention time 20 hours；Second stage ingot casting temperature is 450～480 DEG C, and temperature retention time is 12 hours；
D, described annealing process are 450 DEG C and are incubated 5 hours, and then 400 DEG C are incubated 3 hours；
When e, described Stabilizing Heat Treatment, temperature is 80～120 DEG C, temperature retention time 4 hours；
F, described subsequent heat treatment are 330 DEG C and are incubated 5 hours, and 180 DEG C are incubated 100 hours.
According to the production method of above-mentioned marine aluminium alloy slab, fluid origin aluminium alloy cast ingot specification is: long * width * thickness is 4000*1650*500mm.
According to the production method of above-mentioned marine aluminium alloy slab, the process of described hot fine rolling is: the ingot casting after soaking first carries out roughing, and through the rolling of 17～21 passages, it is 30mm that aluminium alloy cast ingot is rolling to thickness, and rolling rear temperature is 420～450 DEG C.
According to the production method of above-mentioned marine aluminium alloy slab, in described cold-rolled process, cold processing ratio is 30%, and speed is 200m/min；The thickness of cold rolling rear aluminum alloy plate materials is 20mm.
The positive beneficial effect of the present invention:
Utilize marine aluminum alloy plate (its tensile strength >=290MPa that technical solution of the present invention produces, yield strength >=125MPa, elongation percentage >=10%), the mechanical property requirements of marine board can not only be met, and the decay resistance of aluminum alloy plate materials can be greatly improved.Through experiment test, the product aluminum alloy plate materials intercrystalline corrosion degree of depth of the present invention is below 40 μm, it is possible to meet the requirement of the highly corrosion resistant of aluminium alloy thick plate peculiar to vessel under adverse circumstances.
Four, detailed description of the invention:
The present invention is expanded on further below in conjunction with embodiment, but is not limiting as present disclosure.
Embodiment 1:
Marine aluminium alloy slab of the present invention, represents with weight percentage, and described marine aluminium alloy slab is that Al makes by raw material Si 0.2%, Fe 0.3%, Cu 0.05%, Mn 0.55%, Mg 4.8%, Cr 0.15%, Zn 0.1%, Ti 0.022% and surplus.
Embodiment 2:
Marine aluminium alloy slab of the present invention, represents with weight percentage, and described marine aluminium alloy slab is that Al makes by raw material Si 0.15%, Fe 0.35%, Cu 0.03%, Mn 0.45%, Mg 4.5%, Cr 0.2%, Zn 0.1%, Ti 0.015% and surplus.
Embodiment 3:
Marine aluminium alloy slab of the present invention, represents with weight percentage, and described marine aluminium alloy slab is that Al makes by raw material Si 0.25%, Fe 0.2%, Cu 0.06%, Mn 0.6%, Mg 4.9%, Cr 0.10%, Zn 0.1%, Ti 0.018% and surplus.
Embodiment 4:
Marine aluminium alloy slab of the present invention, represents with weight percentage, and described marine aluminium alloy slab is that Al makes by raw material Si 0.18%, Fe 0.25%, Cu 0.04%, Mn 0.50%, Mg 4.6%, Cr 0.18%, Zn 0.1%, Ti 0.020% and surplus.
Embodiment 5:
Marine aluminium alloy slab of the present invention, represents with weight percentage, and described marine aluminium alloy slab is that Al makes by Si 0.22%, Fe 0.28%, Cu 0.07%, Mn 0.50%, Mg 4.7%, Cr 0.20%, Zn 0.1%, Ti 0.03% and surplus.
Embodiment 6:
Marine aluminium alloy slab of the present invention, represents with weight percentage, and described marine aluminium alloy slab is that Al makes by raw material Si 0.2%, Fe 0.25%, Cu 0.05%, Mn 0.52%, Mg 4.6%, Cr 0.16%, Zn 0.1%, Ti 0.02% and surplus.
Embodiment 7:
The production method of the embodiment of the present invention 1～6 marine aluminium alloy slab, detailed step is as follows:
A, preparation of raw material: according to the various alloying component of proportioning raw materials proportions of the arbitrary described marine aluminium alloy slab of embodiment 1～6；
B, melting: carrying out melting in various alloying components addition smelting furnace step a prepared, smelting temperature is 750 DEG C, obtains aluminium alloy solution after melting；
C, casting: the aluminium alloy solution that step b is obtained casting temperature be 705～715 DEG C, casting water temperature 23～27 DEG C, be cast as under conditions of casting speed 30～40mm/min thickness be 500mm, width be 1650mm and the aluminium alloy cast ingot of a length of 4000mm；
D, milling face: aluminium alloy cast ingot saw head, milling face step c obtained, saw head length 200mm, milling face, one side, big face amount 25～40mm, little unilateral milling face amount 15～25mm；
E, soaking: the ingot casting behind milling face is carried out homogenization heat treatment and heats, ingot casting heating cycle in heating furnace be first stage ingot casting temperature be 500～520 DEG C, temperature retention time 20 hours；Second stage ingot casting temperature is 450～480 DEG C, and temperature retention time is 12 hours；
F, hot fine rolling: the ingot casting after soaking first carries out roughing, through the rolling of 18 passages, it is 30mm that aluminium alloy cast ingot is rolling to thickness, and rolling rear temperature is 420 DEG C.
G, annealing: the aluminum alloy plate materials after hot fine rolling is carried out intermediate annealing, annealing process is 450 DEG C and is incubated 5 hours, and then 400 DEG C are incubated 3 hours；
H, cold rolling: carrying out cold rolling to the aluminum alloy plate materials after annealing, cold processing ratio is 30%, and speed is 200m/min；The thickness of cold rolling rear aluminum alloy plate materials is 20mm；
I, Stabilizing Heat Treatment: the aluminum alloy plate materials after cold rolling is carried out Stabilizing Heat Treatment, heat treatment temperature is 100 DEG C, and the process time is 4 hours；
J, subsequent heat treatment: the aluminum alloy plate materials after stabilizing treatment is carried out heat treatment again, heat treatment process is 330 DEG C and is incubated 5 hours, and 180 DEG C are incubated 100 hours, finally obtain the aluminium alloy thick plate product that thickness is 20mm.
Embodiment 8:
The production method of the embodiment of the present invention 1～6 marine aluminium alloy slab, detailed step is as follows:
A, preparation of raw material: according to the various alloying component of proportioning raw materials proportions of the arbitrary described marine aluminium alloy slab of embodiment 1～6；
B, melting: carrying out melting in various alloying components addition smelting furnace step a prepared, smelting temperature is 720 DEG C, obtains aluminium alloy solution after melting；
C, casting: the aluminium alloy solution that step b is obtained casting temperature be 705～715 DEG C, casting water temperature 23～27 DEG C, be cast as under conditions of casting speed 30～40mm/min thickness be 500mm, width be 1650mm, the aluminium alloy cast ingot of a length of 4000mm；
D, milling face: aluminium alloy cast ingot saw head, milling face step c obtained, saw head length 200mm, milling face, one side, big face amount 25～40mm, little unilateral milling face amount 15～25mm；
E, soaking: the ingot casting behind milling face is carried out homogenization heat treatment and heats, ingot casting heating cycle in heating furnace be first stage ingot casting temperature be 500～520 DEG C, temperature retention time 20 hours；Second stage ingot casting temperature is 450～480 DEG C, and temperature retention time is 12 hours；
F, hot fine rolling: the ingot casting after soaking first carries out roughing, through the rolling of 21 passages, it is 30mm that aluminium alloy cast ingot is rolling to thickness, and rolling rear temperature is 450 DEG C；
G, annealing: the aluminum alloy plate materials after hot fine rolling is carried out intermediate annealing, annealing process is 450 DEG C and is incubated 5 hours, and then 400 DEG C are incubated 3 hours；
H, cold rolling: carrying out cold rolling to the aluminum alloy plate materials after annealing, cold processing ratio is 30%, and speed is 200m/min；The thickness 20mm of cold rolling rear aluminum alloy plate materials；
I, Stabilizing Heat Treatment: the aluminum alloy plate materials after cold rolling is carried out Stabilizing Heat Treatment, heat treatment temperature is 80 DEG C, and the process time is 4 hours；
J, subsequent heat treatment: the aluminum alloy plate materials after stabilizing treatment is carried out heat treatment again, heat treatment process is 330 DEG C and is incubated 5 hours, and 180 DEG C are incubated 100 hours, finally obtain the aluminium alloy thick plate product that thickness is 20mm.
Embodiment 9:
The production method of the embodiment of the present invention 1～6 marine aluminium alloy slab, detailed step is as follows:
A, preparation of raw material: according to the various alloying component of proportioning raw materials proportions of the arbitrary described marine aluminium alloy slab of embodiment 1～6；
B, melting: carrying out melting in various alloying components addition smelting furnace step a prepared, smelting temperature is 760 DEG C, obtains aluminium alloy solution after melting；
C, casting: the aluminium alloy solution that step b is obtained casting temperature be 705～715 DEG C, casting water temperature 23～27 DEG C, be cast as under conditions of casting speed 30～40mm/min thickness be 500mm, width be 1650mm, the aluminium alloy cast ingot of a length of 4000mm；
D, milling face: aluminium alloy cast ingot saw head, milling face step c obtained, saw head length 200mm, milling face, one side, big face amount 25～40mm, little unilateral milling face amount 15～25mm；
E, soaking: the ingot casting behind milling face is carried out homogenization heat treatment and heats, ingot casting heating cycle in heating furnace be first stage ingot casting temperature be 500～520 DEG C, temperature retention time 20 hours；Second stage ingot casting temperature is 450～480 DEG C, and temperature retention time is 12 hours；
F, hot fine rolling: the ingot casting after soaking first carries out roughing, through the rolling of 171 passages, it is 30mm that aluminium alloy cast ingot is rolling to thickness, and rolling rear temperature is 430 DEG C；
G, annealing: the aluminum alloy plate materials after hot fine rolling is carried out intermediate annealing, annealing process is 450 DEG C and is incubated 5 hours, and then 400 DEG C are incubated 3 hours；
H, cold rolling: carrying out cold rolling to the aluminum alloy plate materials after annealing, cold processing ratio is 30%, and speed is 200m/min；The thickness 20mm of cold rolling rear aluminum alloy plate materials；
I, Stabilizing Heat Treatment: the aluminum alloy plate materials after cold rolling is carried out Stabilizing Heat Treatment, heat treatment temperature is 120 DEG C, and the process time is 4 hours；
J, subsequent heat treatment: the aluminum alloy plate materials after stabilizing treatment is carried out heat treatment again, heat treatment process is 330 DEG C and is incubated 5 hours, and 180 DEG C are incubated 100 hours, finally obtain the aluminium alloy thick plate product that thickness is 20mm.
Claims (4)
1. a marine aluminium alloy slab, it is characterized in that: represent with weight percentage, described marine aluminium alloy slab is by raw material Si 0.15～0.25%, Fe 0.2～0.35%, Cu 0.03～0.07%, Mn 0.45～0.6%, Mg 4.5～4.9%, Cr 0.1～0.2%, Zn 0.1%, Ti 0.015～0.03% and surplus are that Al makes；
The production method of described marine aluminium alloy slab: include the preparation of raw material, melting, casting, milling face, soaking, hot fine rolling, annealing, cold rolling, Stabilizing Heat Treatment and subsequent heat treatment, wherein:
In a, casting process, casting temperature is 705～715 DEG C, and casting water temperature is 23～27 DEG C, and casting speed is 30～40mm/min；
When b, milling face, big unilateral milling face amount is 25～40mm, and little unilateral milling face amount is 15～25mm；
Using heating furnace that aluminium alloy cast ingot is carried out heat treatment when c, soaking, ingot casting heating cycle in heating furnace is: first stage ingot casting temperature is 500～520 DEG C, temperature retention time 20 hours；Second stage ingot casting temperature is 450～480 DEG C, and temperature retention time is 12 hours；
D, described annealing process are 450 DEG C and are incubated 5 hours, and then 400 DEG C are incubated 3 hours；
When e, described Stabilizing Heat Treatment, temperature is 80～120 DEG C, temperature retention time 4 hours；
F, described subsequent heat treatment are 330 DEG C and are incubated 5 hours, and 180 DEG C are incubated 100 hours.
Marine aluminium alloy slab the most according to claim 1, it is characterised in that in feature a, fluid origin aluminium alloy cast ingot specification is: long * width * thickness is 4000*1650*500mm.
Marine aluminium alloy slab the most according to claim 1, it is characterized in that, the process of described hot fine rolling is: the ingot casting after soaking first carries out roughing, through the rolling of 17～21 passages, it is 30mm that aluminium alloy cast ingot is rolling to thickness, and rolling rear temperature is 420～450 DEG C.
Marine aluminium alloy slab the most according to claim 1, it is characterised in that in described cold-rolled process, cold processing ratio is 30%, speed is 200m/min；The thickness of cold rolling rear aluminum alloy plate materials is 20mm.
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| JP6689291B2 (en) * | 2015-06-05 | 2020-04-28 | ノベリス・インコーポレイテッドＮｏｖｅｌｉｓ Ｉｎｃ． | High strength 5xxx aluminum alloy and method of making same |
| CN106834829B (en) * | 2017-02-27 | 2018-10-16 | 东莞市铝美铝型材有限公司 | A kind of ship anticorodal and preparation method thereof |
| CN107937770A (en) * | 2017-11-23 | 2018-04-20 | 湖州亨达铝业有限公司 | A kind of preparation method of highly corrosion resistant marine aluminium alloy |
| CN110343920A (en) * | 2019-05-29 | 2019-10-18 | 山东垚坤模具有限公司 | Semi-steel radial tire activating mold aluminium spends block alloy material |
| CN112853158A (en) * | 2020-12-29 | 2021-05-28 | 河南中多铝镁新材有限公司 | Marine aluminum alloy thick plate and production method thereof |
| CN113862498B (en) * | 2021-08-19 | 2022-08-02 | 河南泰鸿新材料有限公司 | High-strength aluminum plate for cargo vehicle oil tank and production method thereof |
| CN114438381B (en) * | 2022-01-13 | 2023-03-24 | 河南泰鸿新材料有限公司 | High-strength, high-toughness and corrosion-resistant aluminum alloy plate and preparation method thereof |
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| CN87102994A (en) * | 1987-04-25 | 1988-11-09 | 中国原子能科学研究院 | Process for producing ribbons of hard aluminium alloy for deep stamping processing |
| CN101481764B (en) * | 2009-02-12 | 2010-09-15 | 郑州明泰实业有限公司 | Aluminum alloy rolled plate and producing method thereof |
| CN101538668A (en) * | 2009-04-28 | 2009-09-23 | 中铝河南铝业有限公司 | Production process of aluminum alloy hot rolling medium plate |
| CN102634701B (en) * | 2012-03-13 | 2014-01-01 | 浙江永杰铝业有限公司 | Production method of high-magnesium aluminum alloy sheet for ship |
| CN102876939B (en) * | 2012-10-29 | 2013-12-25 | 东北轻合金有限责任公司 | Manufacturing method of aluminum magnesium alloy |
| CN102876940B (en) * | 2012-10-29 | 2013-12-25 | 东北轻合金有限责任公司 | Manufacturing method of aluminum alloy thin plate with stable performance |
| CN102974726B (en) * | 2012-11-30 | 2015-01-21 | 河南明泰铝业股份有限公司 | Rolling method of pop-top can pull-tab material |
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Effective date of registration: 20220121 Address after: 451200 No.8 G310 National Road, Huiguo Town, Gongyi City, Zhengzhou City, Henan Province Patentee after: Henan Taihong New Material Co.,Ltd. Address before: 451283 Renren Road, Huiguo Town, Gongyi City, Zhengzhou City, Henan Province Patentee before: HENAN MINGTAI AL. INDUSTRIAL CO.,LTD. |