CN104561696B - High ferro 5083 aluminum alloy plate materials and production method thereof - Google Patents

High ferro 5083 aluminum alloy plate materials and production method thereof Download PDF

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CN104561696B
CN104561696B CN201410815173.9A CN201410815173A CN104561696B CN 104561696 B CN104561696 B CN 104561696B CN 201410815173 A CN201410815173 A CN 201410815173A CN 104561696 B CN104561696 B CN 104561696B
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ferro
aluminum alloy
plate materials
casting
alloy plate
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CN201410815173.9A
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CN104561696A (en
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邵继鹏
李占国
李国锋
王延彦
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河南明泰铝业股份有限公司
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08Alloys based on aluminium with magnesium as the next major constituent with silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047Changing 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 high ferro 5083 aluminum alloy plate materials and production method thereof.Representing with weight percentage, high ferro 5083 aluminum alloy plate materials are by raw material Si 0.20~0.30%, Fe 0.20~0.30%, Cu 0.03~0.07%, Mn 0.45~0.60%, Mg 5.0~5.3%, Cr 0.10~0.20%, Ti 0.015~0.03%, Zn 0~0.10% and balance of Al makes.Production method includes that raw material preparation, melting, casting, saw head are washed one's face, soaking, hot roughing, hot finishing, cold rolling, stretch bending is corrected, annealing and slice packaging.Utilize the inventive method to improve the performances such as the fatigue strength of high ferro 5083 aluminum alloy plate materials, tensile strength and elongation percentage, be fully able to meet high ferro and require with the use of 5083 aluminum alloy plate materials.

Description

High ferro 5083 aluminum alloy plate materials and production method thereof

Technical field

The invention belongs to aluminum alloy materials processing technique field, be specifically related to a kind of high ferro aluminum alloy plate materials and production method thereof.

Background technology

In recent years, with the development of China's high ferro technology, also " going abroad " while high ferro train is popularized at home.Owing to the density of aluminium alloy is relatively low, and having higher intensity, therefore, aluminium alloy is that high ferro realizes the best material of lightweight, the deadweight of the mitigation high ferro train that use aluminium alloy can be very big.Wherein, 5083 aluminum alloy plate materials are exactly the important composition in high ferro aluminum alloy materials family.Though high ferro wide market, domestic really be able to manufacture meet the producer of high ferro 5083 plate property requirements and can be counted on one's fingers.High ferro has higher requirement with 5083 aluminium plates to the tensile strength of material, fatigue strength, elongation percentage, corrosion resistance and welding performance etc..It and 5083 aluminium alloys belong to wrought aluminium alloy, is not heat-treatable strengthened aluminum alloy, it is impossible to strengthened by heat-treating methods, the problems such as fatigue strength is low, tensile strength is uneven, elongation percentage is low often occur.The high ferro that existing production technology produces can't fully meet the performance requirement of high ferro sheet material with 5083 aluminium plates.Thus, how a kind of high ferro production method of 5083 aluminum alloy plate materials is provided, requires to meet the high ferro use of 5083 aluminum alloy plate materials, be current this area problem demanding prompt solution.

Content of the invention

The technical problem to be solved in the present invention is: provide a kind of high ferro 5083 aluminum alloy plate materials and production method thereof.Utilize the inventive method to improve the performances such as the fatigue strength of high ferro 5083 aluminum alloy plate materials, tensile strength and elongation percentage, be fully able to meet high ferro and require with the use of 5083 aluminum alloy plate materials.

In order to solve the problems referred to above, the technical solution used in the present invention is:

The present invention provides a kind of high ferro 5083 aluminum alloy plate materials, represent with weight percentage, described high ferro 5083 aluminum alloy plate materials are by raw material Si 0.20~0.30%, Fe 0.20~0.30%, Cu 0.03~0.07%, Mn 0.45~0.60%, Mg 5.0~5.3%, Cr 0.10~0.20%, Ti 0.015~0.03%, Zn 0~0.10% and balance of Al makes.

Additionally, it is provided that a kind of above-mentioned high ferro production method of 5083 aluminum alloy plate materials, including raw material preparation, melting, casting, saw head milling face, soaking, hot roughing, hot finishing, cold rolling, stretch bending is corrected, annealing and slice packaging, wherein:

A, control in casting process casting temperature be 690~720 DEG C, casting water temperature be 25~35 DEG C, casting hydraulic pressure be 0.2~0.6kg/cm2, casting speed be 35~50mm/min, casting discharge be 90~230m3/h;

B, saw head milling face during: sawing machine fluid origin aluminium alloy cast ingot is carried out saw head, a length of 150 ± 2mm of the head of ingot;Carry out milling face, Liang Wei little face, milling face one side 15 ± 1mm, big face one side 15 ± 1mm with milling machine again;

C, using during soaking heating furnace to carry out heating aluminium alloy cast ingot, its heating cycle is: first stage ingot casting temperature is 480~500 DEG C, temperature retention time 12~14 hours;Second stage ingot casting temperature is 520~530 DEG C, and temperature retention time is 4 hours, and tapping temperature is 480~500 DEG C;

D, hot roughing aluminium alloy cast ingot are the rolling through 19~23 passages for the 470~490mm by thickness, are rolled to the blank material that thickness is 20~25mm;In hot rough rolling process, emulsion pressure is 0.1~0.3MPa, and mass concentration is 3~8%, and after roughing, temperature is 390~450 DEG C;

E, during hot finishing: mill speed is 2.0~2.6m/s, and being rolling to thickness through continuous 4 times is 7.5 ± 0.5mm;During hot finishing, emulsion pressure is 0.2~0.45MPa, and mass concentration is 3~8%, and compressed air pressure is 0.2~0.5 MPa;

F, cold rolling be to be 7.5 ± 0.5mm through 3 rollings by thickness, 3 passages are assigned as 7.5 → 6.0 → 5.3 → 4.0mm, and the thickness after rolling is 4.0mm;Mill speed is 1.6~2.6m/s;

In g, annealing process, in annealing furnace, metal temperature is 340~350 DEG C, and temperature retention time is 4h.

According to the above-mentioned high ferro production method of 5083 aluminum alloy plate materials, casting detects hydrogen content≤0.15ml/100gAl.

According to the above-mentioned high ferro production method of 5083 aluminum alloy plate materials, after casting, the thickness of gained aluminium alloy cast ingot is 500~520mm, and width is 1300~1350mm.

According to the above-mentioned high ferro production method of 5083 aluminum alloy plate materials, behind aluminium alloy cast ingot milling face, thickness is by 500~520mm milling to 470~490mm.

According to the above-mentioned high ferro production method of 5083 aluminum alloy plate materials, the parameter in stretch bending correcting process is: elongation percentage 0.3~0.8%, speed 45~50m/min, and water temperature is 80~85 DEG C.

According to the above-mentioned high ferro production method of 5083 aluminum alloy plate materials, controlling thickness deviation in the operation of rolling is ± 0.05mm, and width tolerance is 0~3mm.

According to the above-mentioned high ferro production method of 5083 aluminum alloy plate materials, after annealing, the performance of product is detected as: tensile strength 275~350MPa, elongation percentage 20~26%, yield strength 125~200MPa, fatigue strength 160~170MPa.

The positive beneficial effect of the present invention:

1st, strict control magnesium elements mass content in technical solution of the present invention, restriction by each rational technology and specification, improve tensile strength, fatigue strength and the elongation percentage of 5083 aluminum alloy plate materials, the tensile strength of gained 5083 aluminum alloy plate materials is 275~350MPa, elongation percentage 20~26%, yield strength 125~200MPa and fatigue strength 160~170MPa, products obtained therefrom is fully able to meet high ferro and requires with the use of 5083 aluminum alloy plate materials higher-strengths, elongation percentage and welding performance etc., compensate for the market vacancy with 5083 aluminum alloy plate materials for China's high ferro.Table 1 is the present invention 5083 aluminum alloy plate materials mechanical experimental results.

2nd, technical solution of the present invention, obtains 5083 aluminium alloy cast ingots through founding, the strict mass content controlling magnesium in fusion-casting process so that it is between 5.0~5.3%;Carry out homogenization heat treatment to 5083 aluminium ingots, soaking temperature is implemented between 480~530 DEG C in two stages;First pass around the hot roughing of aximal deformation value to 5083 ingot castings through homogenization heat treatment, at a temperature of 390~450 DEG C, then carry out hot finishing, be rolled to thickness 7.5 ± 0.5mm;The cold rolling of small deformation amount is carried out to 5083 aluminium coiled materials after hot rolling, and carries out stretch-bending straightening and cleaning treatment, obtain 5083 aluminium coiled material semi-finished product;Process through stabilizing annealing, cut into slices, obtain 5083 aluminum alloy plate materials finished products.The high ferro of the present invention production method of 5083 aluminum alloy plate materials, the strict content controlling alloying element magnesium, matched by operations such as homogenization heat treatment, hot rolling (hot roughing and hot finishing), cold rolling, Stabilizing Heat Treatment, the final high ferro fatigue strength of 5083 aluminum alloy plate materials, tensile strength and the elongation percentage of improving, and then meet high ferro and require with the use of 5083 aluminum alloy plate materials.

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:

High ferro of the present invention 5083 aluminum alloy plate materials, represent with weight percentage, by raw material Si 0.27%, Fe 0.29%, Cu 0.047%, Mn 0.455%, Mg 5.15%, Cr 0.13%, Ti 0.016%, Zn 0.007% and balance of Al makes.

Embodiment 2:

High ferro of the present invention 5083 aluminum alloy plate materials, represent with weight percentage, by raw material Si 0.25%, Fe 0.25%, Cu 0.05%, Mn 0.55%, Mg 5.05%, Cr 0.18%, Ti 0.025% and balance of Al makes.

Embodiment 3:

High ferro of the present invention 5083 aluminum alloy plate materials, represent with weight percentage, by raw material Si 0.26%, Fe 0.30%, Cu 0.06%, Mn 0.5%, Mg 5.25%, Cr 0.14%, Ti 0.025% and balance of Al makes.

Embodiment 4:

High ferro of the present invention 5083 aluminum alloy plate materials, represent with weight percentage, by raw material Si 0.2%, Fe 0.22%, Cu 0.07%, Mn 0.45%, Mg 5.0%, Cr 0.10%, Ti 0.03%, Zn 0.005% and balance of Al makes.

Embodiment 5:

High ferro of the present invention 5083 aluminum alloy plate materials, represent with weight percentage, by raw material Si 0.30%, Fe 0.20%, Cu 0.03%, Mn 0.6%, Mg 5.3%, Cr 0.20%, Ti 0.015%, Zn 0.008% and balance of Al makes.

Embodiment 6:

High ferro of the present invention 5083 aluminum alloy plate materials, represent with weight percentage, by raw material Si 0.24%, Fe 0.27%, Cu 0.055%, Mn 0.5%, Mg 5.1%, Cr 0.16%, Ti 0.02% and balance of Al makes.

Embodiment 7:

The embodiment of the present invention 1 high ferro production method of 5083 aluminum alloy plate materials, detailed step is as follows:

A, raw material preparation: according to the various alloying component of raw material ratio preparation of 5083 aluminum alloy plate materials of high ferro described in embodiment 1;

B, melting: adding the various alloying component of step a preparation in smelting furnace and carrying out melting, smelting temperature is 750 DEG C, obtains aluminium alloy solution after melting;Then using static stove to refine, refining temperature is 730 DEG C, refining time 60min;

C, casting: by gained aluminium alloy solution casting temperature be 700 DEG C, casting water temperature be 30 DEG C, casting hydraulic pressure be 0.4kg/cm2, casting speed be 40mm/min, casting discharge be 160m3It is cast as the aluminium alloy cast ingot that thickness is that 510mm, width are 1320mm under/h;Casting detects hydrogen content≤0.15ml/100gAl;

D, saw head milling face: by the aluminium alloy cast ingot saw head obtaining, milling face, saw head length 150 ± 2mm, unilateral milling face, little face amount 15 ± 1mm, unilateral milling face, big face amount 15 ± 1mm;Behind milling face, the thickness of aluminium alloy cast ingot is 480mm;

E, soaking: put into the ingot casting behind milling face in heating furnace and heat, its heating cycle is: first stage ingot casting temperature is 490 DEG C, temperature retention time 13 hours;Second stage ingot casting temperature is 525 DEG C, and temperature retention time is 4 hours, and tapping temperature is 490 DEG C;

F, hot rolling: first carry out roughing to the ingot casting after soaking, be the rolling through 20 passages for the 480mm by thickness, be rolled to the blank material that thickness is 22mm;In hot rough rolling process, emulsion pressure is 0.2MPa, and mass concentration is 5%, and after roughing, temperature is 420 DEG C;

G, hot finishing: mill speed is 2.2m/s, being rolling to thickness through continuous 4 times is 7.5 ± 0.5mm;During hot finishing, emulsion pressure is 0.3MPa, and mass concentration is 5%, and compressed air pressure is 0.35MPa;

H, cold rolling and finished machined: cold rolling is to be 7.5 ± 0.5mm through 3 rollings by thickness, and 3 passages are assigned as 7.5 → 6.0 → 5.3 → 4.0mm, and the thickness after rolling is 4.0mm;Mill speed is 2.0m/s;Then carry out stretch-bending straightening and clean (water temperature is 82 DEG C for the parameter of stretch-bending straightening: elongation percentage 0.5%, speed 48m/min);

I, annealing: the coiled material semi-finished product obtaining step h are put in annealing furnace, control metal temperature 345 DEG C, is incubated 4h, then carries out cutting, packs, get product;Finally carry out mechanical property and structure property detection (referring to table 1).

Embodiment 8:

The embodiment of the present invention 2 high ferro production method of 5083 aluminum alloy plate materials, detailed step is as follows:

A, raw material preparation: according to the various alloying component of raw material ratio preparation of 5083 aluminum alloy plate materials of high ferro described in embodiment 2;

B, melting: adding the various alloying component of step a preparation in smelting furnace and carrying out melting, smelting temperature is 720 DEG C, obtains aluminium alloy solution after melting;Then using static stove to refine, refining temperature is 720 DEG C, refining time 60min;

C, casting: by gained aluminium alloy solution casting temperature be 690 DEG C, casting water temperature be 25 DEG C, casting hydraulic pressure be 0.2kg/cm2, casting speed be 35mm/min, casting discharge be 90m3It is cast as the aluminium alloy cast ingot that thickness is that 500mm, width are 1300mm under/h;Casting detects hydrogen content≤0.15ml/100gAl;

D, saw head milling face: by the aluminium alloy cast ingot saw head obtaining, milling face, saw head length 150 ± 2mm, unilateral milling face, little face amount 15 ± 1mm, unilateral milling face, big face amount 15 ± 1mm;Behind milling face, the thickness of aluminium alloy cast ingot is 470mm;

E, soaking: put into the ingot casting behind milling face in heating furnace and heat, its heating cycle is: first stage ingot casting temperature is 480 DEG C, temperature retention time 14 hours;Second stage ingot casting temperature is 530 DEG C, and temperature retention time is 4 hours, and tapping temperature is 480 DEG C;

F, hot rolling: first carry out roughing to the ingot casting after soaking, be the rolling through 19 passages for the 470mm by thickness, be rolled to the blank material that thickness is 20mm;In hot rough rolling process, emulsion pressure is 0.1MPa, and mass concentration is 3%, and after roughing, temperature is 390 DEG C;

G, hot finishing: mill speed is 2.0m/s, being rolling to thickness through continuous 4 times is 7.5 ± 0.5mm;During hot finishing, emulsion pressure is 0.2MPa, and mass concentration is 3%, and compressed air pressure is 0.2MPa;

H, cold rolling and finished machined: cold rolling is to be 7.5 ± 0.5mm through 3 rollings by thickness, and 3 passages are assigned as 7.5 → 6.0 → 5.3 → 4.0mm, and the thickness after rolling is 4.0mm;Mill speed is 1.6m/s;Then carry out stretch-bending straightening and clean (water temperature is 80 DEG C for the parameter of stretch-bending straightening: elongation percentage 0.3%, speed 45m/min);

I, annealing: the coiled material semi-finished product obtaining step h are put in annealing furnace, control metal temperature 340 DEG C, is incubated 4h, then carries out cutting, packs, get product;Finally carry out mechanical property and structure property detection (referring to table 1).

Embodiment 9:

The embodiment of the present invention 3 high ferro production method of 5083 aluminum alloy plate materials, detailed step is as follows:

A, raw material preparation: according to the various alloying component of raw material ratio preparation of 5083 aluminum alloy plate materials of high ferro described in embodiment 3;

B, melting: adding the various alloying component of step a preparation in smelting furnace and carrying out melting, smelting temperature is 760 DEG C, obtains aluminium alloy solution after melting;Then using static stove to refine, refining temperature is 750 DEG C, refining time 60min;

C, casting: by gained aluminium alloy solution casting temperature be 720 DEG C, casting water temperature be 35 DEG C, casting hydraulic pressure be 0.6kg/cm2, casting speed be 50mm/min, casting discharge be 230m3It is cast as the aluminium alloy cast ingot that thickness is that 520mm, width are 1350mm under/h;Casting detects hydrogen content≤0.15ml/100gAl;

D, saw head milling face: by the aluminium alloy cast ingot saw head obtaining, milling face, saw head length 150 ± 2mm, unilateral milling face, little face amount 15 ± 1mm, unilateral milling face, big face amount 15 ± 1mm;Behind milling face, the thickness of aluminium alloy cast ingot is 490mm;

E, soaking: put into the ingot casting behind milling face in heating furnace and heat, its heating cycle is: first stage ingot casting temperature is 500 DEG C, temperature retention time 12 hours;Second stage ingot casting temperature is 530 DEG C, and temperature retention time is 4 hours, and tapping temperature is 500 DEG C;

F, hot rolling: first carry out roughing to the ingot casting after soaking, be the rolling through 23 passages for the 490mm by thickness, be rolled to the blank material that thickness is 25mm;In hot rough rolling process, emulsion pressure is 0.3MPa, and mass concentration is 8%, and after roughing, temperature is 450 DEG C;

G, hot finishing: mill speed is 2.6m/s, being rolling to thickness through continuous 4 times is 7.5 ± 0.5mm;During hot finishing, emulsion pressure is 0.45MPa, and mass concentration is 8%, and compressed air pressure is 0.5MPa;

H, cold rolling and finished machined: cold rolling is to be 7.5 ± 0.5mm through 3 rollings by thickness, and 3 passages are assigned as 7.5 → 6.0 → 5.3 → 4.0mm, and the thickness after rolling is 4.0mm;Mill speed is 2.6m/s;Then carry out stretch-bending straightening and clean (water temperature is 85 DEG C for the parameter of stretch-bending straightening: elongation percentage 0.8%, speed 50m/min);

I, annealing: the coiled material semi-finished product obtaining step h are put in annealing furnace, control metal temperature 350 DEG C, is incubated 4h, then carries out cutting, packs, get product;Finally carry out mechanical property and structure property detection (referring to table 1).

Embodiment 10:

The embodiment of the present invention 4 high ferro production method of 5083 aluminum alloy plate materials is with embodiment 7.

Embodiment 11:

The embodiment of the present invention 5 high ferro production method of 5083 aluminum alloy plate materials is with embodiment 7.

Embodiment 12:

The embodiment of the present invention 6 high ferro production method of 5083 aluminum alloy plate materials is with embodiment 7.

Claims (6)

1. high ferro 5083 aluminum alloy plate materials, it is characterized in that: represent with weight percentage, described high ferro 5083 aluminum alloy plate materials are by raw material Si 0.20~0.30%, Fe 0.20~0.30%, Cu 0.03~0.07%, Mn 0.45~0.60%, Mg 5.0~5.3%, Cr 0.10~0.20%, Ti 0.015~0.03%, Zn 0~0.10% and balance of Al makes;
The described high ferro production method of 5083 aluminum alloy plate materials, including raw material preparation, melting, casting, saw head milling face, soaking, hot roughing, hot finishing, cold rolling, stretch bending are corrected, annealing and slice packaging, wherein:
A, control in casting process casting temperature be 690~720 DEG C, casting water temperature be 25~35 DEG C, casting hydraulic pressure be 0.2~0.6kg/cm2, casting speed be 35~50mm/min, casting discharge be 90~230m3/h;
B, saw head milling face during: sawing machine fluid origin aluminium alloy cast ingot is carried out saw head, a length of 150 ± 2mm of the head of ingot;Carry out milling face, Liang Wei little face, milling face one side 15 ± 1mm, big face one side 15 ± 1mm with milling machine again;
C, using during soaking heating furnace to carry out heating aluminium alloy cast ingot, its heating cycle is: first stage ingot casting temperature is 480~500 DEG C, temperature retention time 12~14 hours;Second stage ingot casting temperature is 520~530 DEG C, and temperature retention time is 4 hours, and tapping temperature is 480~500 DEG C;
D, hot roughing aluminium alloy cast ingot are the rolling through 19~23 passages for the 470~490mm by thickness, are rolled to the blank material that thickness is 20~25mm;In hot rough rolling process, emulsion pressure is 0.1~0.3MPa, and mass concentration is 3~8%, and after roughing, temperature is 390~450 DEG C;
E, during hot finishing: mill speed is 2.0~2.6m/s, and being rolling to thickness through continuous 4 times is 7.5 ± 0.5mm;During hot finishing, emulsion pressure is 0.2~0.45MPa, and mass concentration is 3~8%, and compressed air pressure is 0.2~0.5 MPa;
F, cold rolling be to be 7.5 ± 0.5mm through 3 rollings by thickness, 3 passages are assigned as 7.5 → 6.0 → 5.3 → 4.0mm, and the thickness after rolling is 4.0mm;Mill speed is 1.6~2.6m/s;
In g, annealing process, in annealing furnace, metal temperature is 340~350 DEG C, and temperature retention time is 4h.
2. high ferro according to claim 1 5083 aluminum alloy plate materials, it is characterised in that: casting detects hydrogen content≤0.15ml/100gAl.
3. high ferro according to claim 1 5083 aluminum alloy plate materials, it is characterised in that: after casting, the thickness of gained aluminium alloy cast ingot is 500~520mm, and width is 1300~1350mm.
4. high ferro according to claim 1 5083 aluminum alloy plate materials, it is characterised in that the parameter in stretch bending correcting process is: elongation percentage 0.3~0.8%, speed 45~50m/min, water temperature is 80~85 DEG C.
5. high ferro according to claim 1 5083 aluminum alloy plate materials, it is characterised in that controlling thickness deviation in the operation of rolling is ± 0.05mm, and width tolerance is 0~3mm.
6. high ferro according to claim 1 5083 aluminum alloy plate materials, it is characterised in that after annealing, the performance of product is detected as: tensile strength 275~350MPa, elongation percentage 20~26%, yield strength 125~200MPa, fatigue strength 160~170MPa.
CN201410815173.9A 2014-12-22 2014-12-22 High ferro 5083 aluminum alloy plate materials and production method thereof CN104561696B (en)

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CN104894442A (en) * 2015-05-05 2015-09-09 山东南山铝业股份有限公司 Aluminum alloy sheet material for vehicles and preparation method thereof
RU2684800C1 (en) * 2015-06-05 2019-04-15 Новелис Инк. High-strength aluminium alloys 5xxx and methods for manufacture thereof
CN105714155B (en) * 2015-12-21 2017-11-10 河南明泰铝业股份有限公司 A kind of electrokinetic cell shell aluminium sheet, aluminium strip and its production method
CN105839036B (en) * 2016-04-27 2017-10-27 贵州航天风华精密设备有限公司 A kind of heat treatment method of almag
CN106086550A (en) * 2016-07-21 2016-11-09 辽宁忠旺集团有限公司 The production technology of 6061 aluminium alloy stretch bending section bars
CN106756315A (en) * 2016-11-28 2017-05-31 广西南南铝加工有限公司 A kind of aluminum alloy plate materials preparation method
CN107287478A (en) * 2017-05-26 2017-10-24 温州兴锐成科技有限公司 A kind of aluminium Y-tooth line and preparation method thereof
CN107338376B (en) * 2017-07-11 2019-02-22 中铝瑞闽股份有限公司 A kind of preparation method of aluminium alloy compartment plate
CN109266881A (en) * 2018-11-29 2019-01-25 天津忠旺铝业有限公司 A kind of preparation process of 5083 aluminium alloy of high buckling performance

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