CN105648289A - High-strength aluminum alloy material - Google Patents

High-strength aluminum alloy material Download PDF

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Publication number
CN105648289A
CN105648289A CN201610202603.9A CN201610202603A CN105648289A CN 105648289 A CN105648289 A CN 105648289A CN 201610202603 A CN201610202603 A CN 201610202603A CN 105648289 A CN105648289 A CN 105648289A
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Prior art keywords
aluminum alloy
alloy material
strength aluminum
weight
percentage
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CN201610202603.9A
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CN105648289B (en
Inventor
周峰
王匀
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JIANGSU DUKE NEW ENERGY AUTOMOBILE Co Ltd
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JIANGSU DUKE NEW ENERGY AUTOMOBILE Co Ltd
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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
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/06Making alloys with the use of special agents for refining or deoxidising
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/02Alloys based on aluminium with silicon as the next major constituent

Abstract

The invention relates to high-strength aluminum alloy material. The high-strength aluminum alloy material comprises, by weight percentage, 0.5-0.55% of Si, not more than 0.16% of Fe, not more than 0.02% of Cu, 0.65-0.7% of Mg, 0.015-0.025% of Mn, not more than 0.01% of Cr, not more than 0.012% of Zn, 0.017-0.025% of Ti and the balance of Al. The aluminum alloy material with high strength, high hardness and high performance is prepared by a special formula and is lightweight, wear resistant, good in plasticity, excellent in radiating performance, capable of being used for manufacturing car frames, capable of reducing the self-weight of cars and widely applicable to the field of new-energy cars.

Description

A kind of high-strength aluminum alloy material
Technical field
The invention belongs to alloy field, in particular to a kind of high-strength aluminum alloy material.
Background technology
Aluminium alloy is a most widely used class non-ferrous metal structural material in industry, widely applies in Aeronautics and Astronautics, automobile, machine-building, boats and ships and chemical industry. Along with science and technology and the developing rapidly of industrial economy, the demand of aluminium alloy is increasing, the research enabled aluminum alloy to is also therewith deeply. Aluminium section bar is better than steel at a lot of aspect of performances, is mainly manifested in: corrosion resistance, easy heat conductivity, nonferromagnetic, machinability, formability and recuperability.
Add the alloy that certain element formed and can also have higher hardness, intensity while keeping the advantage such as fine aluminium light weight, become desirable structural material, it is widely used in the aspects such as machine-building, Transport Machinery, dynamic power machine and aircraft industry, the fuselage of aircraft, eyelid covering, compressor etc. are often with aluminium alloy manufacture, to alleviate deadweight. Adopting aluminium alloy to replace the welding of steel plate materials, construction weight can alleviate more than 50%.
Current automobile frame manufactures field, is nearly all adopt ferrous materials to manufacture, and iron and steel vehicle frame weight is big, is unfavorable for energy-conserving and environment-protective. A kind of high hardness aluminium alloy material involved in the present invention, it is possible to for automobile frame, it is simply that by the various excellent specific properties of aluminium, improved by composition of raw materials, it is achieved it is in the excellent value of automobile frame manufacture view. But, conventional aluminum alloy yet suffers from weak point, it is mainly composed of aluminum, magnesium and silicon, due to the restriction by materials microstructure, the material property processed is poor, easily occurring the defects such as fracture, wrinkle, fatigue in the course of processing, yield rate is relatively low, poor thermal conductivity, result in the waste of material. Meanwhile, production efficiency is relatively low, adds labor intensity, adds production cost.
Summary of the invention
The present invention prepares a kind of high performance aluminium materials with higher-strength, hardness by selecting specific formula, there is excellent heat radiation simultaneously, can be used in the manufacture of automobile frame, it is possible to alleviate the deadweight of automobile, it is possible to be widely used in new-energy automobile field.
Specifically, the present invention provides a kind of high-strength aluminum alloy material, it is characterised in that include Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti.
In one specific embodiment of the present invention, described a kind of high-strength aluminum alloy material includes Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5-0.55%, Fe��0.16%, Cu��0.02%, Mg0.65-0.7%, Mn0.015-0.025%, Cr��0.01%, Zn��0.012%, Ti0.017-0.025%, surplus is Al.
In one specific embodiment of the present invention, described a kind of high-strength aluminum alloy material includes Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5%, Fe0.12%, Cu0.01%, Mg0.65%, Mn0.015%, Cr0.005%, Zn0.01%, Ti0.017%, and surplus is Al.
In one specific embodiment of the present invention, described a kind of high-strength aluminum alloy material includes Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.55%, Fe0.06%, Cu0.015%, Mg0.7%, Mn0.025%, Cr0.008%, Zn0.011%, Ti0.025%, and surplus is Al.
In one specific embodiment of the present invention, described a kind of high-strength aluminum alloy material includes Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.53%, Fe0.15%, Cu0.012%, Mg0.67%, Mn0.02%, Cr0.006%, Zn0.005%, Ti0.021%, and surplus is Al.
Another aspect of the present invention is in that the preparation method providing described high-strength aluminum alloy material, including
(1) preparation of raw material: alloyage total amount as required, gets the raw materials ready according to the proportioning of alloy, is put into by ready raw material in constant temperature preheating and drying stove dry;
(2) preparation of refine slag-cleaning agent: prepare refine slag-cleaning agent by the 0.55��1.15% of raw material gross mass each in step (1), puts in constant temperature preheating and drying stove dry by ready refine slag-cleaning agent;
(3) melt: dried aluminum in step (1) is put in thawing furnace, igniting, control furnace temperature 700��750 DEG C, stand after Al all melts and be incubated 15��20min, add other raw materials dried, be continuously heating to 760��800 DEG C of insulation 15��20min and promote melt alloying;
(4) refine: spray into the refine slag-cleaning agent obtained in step (2), refine degasification in step (3), stand insulation 15��18min, slagging-off in 750 DEG C;
(5) forging molding: by the aluminium alloy melt insulation obtained in step (4) die casting, it is thus achieved that Al alloy product.
In one specific embodiment of the present invention, wherein said refine slag-cleaning agent is silicate or villaumite.
In one specific embodiment of the present invention, wherein said refine slag-cleaning agent is without sodium.
Third aspect present invention provides the purposes of described high hardness aluminium alloy material, for automobile frame.
The present invention prepares a kind of high performance aluminium materials with higher-strength, hardness by selecting specific formula, there is excellent heat radiation simultaneously, can be used in the manufacture of automobile frame, it is possible to alleviate the deadweight of automobile, it is possible to be widely used in new-energy automobile field.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the invention will be further described.
Embodiment 1:
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5%, Fe0.12%, Cu0.01%, Mg0.65%, Mn0.015%, Cr0.005%, Zn0.01%, Ti0.017%, and surplus is Al.
Embodiment 2:
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.55%, Fe0.06%, Cu0.015%, Mg0.7%, Mn0.025%, Cr0.008%, Zn0.011%, Ti0.025%, and surplus is Al.
Embodiment 3:
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.53%, Fe0.15%, Cu0.012%, Mg0.67%, Mn0.02%, Cr0.006%, Zn0.005%, Ti0.021%, and surplus is Al.
Comparative example 1:
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.65%, Fe0.12%, Cu0.01%, Mg0.65%, Mn0.015%, Cr0.005%, Zn0.01%, Ti0.017%, and surplus is Al.
Comparative example 2:
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5%, Fe0.2%, Cu0.01%, Mg0.65%, Mn0.015%, Cr0.005%, Zn0.01%, Ti0.017%, and surplus is Al.
Comparative example 3:
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5%, Fe0.12%, Cu0.01%, Mg0.65%, Mn0.03%, Cr0.005%, Zn0.01%, Ti0.017%, and surplus is Al.
Comparative example 4:
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5%, Fe0.12%, Cu0.01%, Mg0.65%, Mn0.015%, Cr0.02%, Zn0.01%, Ti0.017%, and surplus is Al.
Comparative example 5
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.45%, Fe0.12%, Cu0.01%, Mg0.65%, Mn0.015%, Cr0.005%, Zn0.01%, Ti0.017%, and surplus is Al.
Comparative example 6
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5%, Fe0.12%, Cu0.01%, Mg0.6%, Mn0.015%, Cr0.005%, Zn0.01%, Ti0.017%, and surplus is Al.
Comparative example 7
A kind of high-strength aluminum alloy material, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5%, Fe0.12%, Cu0.01%, Mg0.65%, Mn0.015%, Cr0.005%, Zn0.01%, Ti0.01%, and surplus is Al.
Embodiment 4: the performance detection of high-strength aluminum alloy material of the present invention
The various performances of the aluminum alloy materials of test embodiment of the present invention 1-3 and reference examples 1-7, testing result lists table 1 in.
The performance of table 1 aluminum alloy materials of the present invention
Yield strength (MPa) Tensile strength (MPa) Elongation percentage (%) Hardness (HBS)
Embodiment 1 503.6 589.2 8.4 113
Embodiment 2 503.4 589.9 8.6 114
Embodiment 3 503.8 589.3 8.3 113
Comparative example 1 470.5 548.3 6.9 100
Comparative example 2 474.1 549.2 7.2 103
Comparative example 3 468.6 547.6 7.4 100
Comparative example 4 462.5 553.5 7.6 104
Comparative example 5 467.5 551.4 6.7 106
Comparative example 6 462.7 544.0 7.3 112
Comparative example 7 460.7 540.3 7.8 100
The data of table 1 show, aluminium alloy of the present invention has higher yield strength and tensile strength, have higher hardness and elongation percentage, it is possible to meet the performance requirement manufacturing automobile frame. Meanwhile, the data of table 1 also show that in formula, Si, Fe, Mn, Cr excess can cause the hydraulic performance decline of aluminium alloy, and the consumption deficiency of Si, Mg, Ti also results in the hydraulic performance decline of aluminium alloy.

Claims (8)

1. a high-strength aluminum alloy material, it is characterised in that include Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti.
2. a kind of high-strength aluminum alloy material according to claim 1, it is characterized in that, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5-0.55%, Fe��0.16%, Cu��0.02%, Mg0.65-0.7%, Mn0.015-0.025%, Cr��0.01%, Zn��0.012%, Ti0.017-0.025%, surplus is Al.
3. a kind of high-strength aluminum alloy material according to claim 1, it is characterized in that, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.5%, Fe0.12%, Cu0.01%, Mg0.65%, Mn0.015%, Cr0.005%, Zn0.01%, Ti0.017%, and surplus is Al.
4. a kind of high-strength aluminum alloy material according to claim 1, it is characterized in that, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.55%, Fe0.06%, Cu0.015%, Mg0.7%, Mn0.025%, Cr0.008%, Zn0.011%, Ti0.025%, and surplus is Al.
5. a kind of high-strength aluminum alloy material according to claim 1, it is characterized in that, including Al, Si, Fe, Cu, Mg, Mn, Cr, Zn, Ti, the percentage by weight of each component is: Si0.53%, Fe0.15%, Cu0.012%, Mg0.67%, Mn0.02%, Cr0.006%, Zn0.005%, Ti0.021%, and surplus is Al.
6. the preparation method of a kind of high-strength aluminum alloy material according to any one of claim 1-5, including
(1) preparation of raw material: get the raw materials ready according to the percentage by weight of each component of alloy, puts in constant temperature preheating and drying stove dry by ready raw material;
(2) preparation of refine slag-cleaning agent: prepare refine slag-cleaning agent by the 0.55��1.15% of raw material gross mass each in step (1), puts in constant temperature preheating and drying stove dry by ready refine slag-cleaning agent;
(3) melt: dried aluminum in step (1) is put in thawing furnace, igniting, control furnace temperature 700��750 DEG C, stand after Al all melts and be incubated 15��20min, add other raw materials dried, be continuously heating to 780��800 DEG C of insulation 15��20min and promote melt alloying;
(4) refine: spray into the refine slag-cleaning agent obtained in step (2), refine degasification in step (3), stand insulation 15��18min, slagging-off in 780 DEG C;
(5) forging molding: by the aluminium alloy melt insulation obtained in step (4) die casting, it is thus achieved that Al alloy product.
7. preparation method according to claim 6, wherein said refine slag-cleaning agent is silicate or villaumite.
8. the purposes of the high-strength aluminum alloy material according to any one of claim 1-5, it is characterised in that for automobile frame.
CN201610202603.9A 2016-03-30 2016-03-30 A kind of high-strength aluminum alloy material Active CN105648289B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107312957A (en) * 2017-06-06 2017-11-03 合肥饰界金属制品有限公司 High-strength aluminum alloy material and preparation method thereof
CN109140747A (en) * 2017-06-28 2019-01-04 宜兴市韦德同机械科技有限公司 A kind of accurate filter separator material

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CN102418008A (en) * 2011-12-15 2012-04-18 贵州华科铝材料工程技术研究有限公司 High-strength aluminum alloy obtained by removing inclusion through HfC and preparation method of aluminum alloy
CN102418009A (en) * 2011-12-15 2012-04-18 贵州华科铝材料工程技术研究有限公司 Aluminum alloy capable of digesting high-hardness compounds and smelting method of aluminum alloy
CN102443725A (en) * 2011-12-15 2012-05-09 贵州华科铝材料工程技术研究有限公司 High-strength aluminum alloy treated by AlH3 and preparation method of high-strength aluminum alloy
CN104046852A (en) * 2014-06-26 2014-09-17 龙口市丛林铝材有限公司 Aluminum profile for motor train unit running in high and cold regions and preparation method thereof
CN104073698A (en) * 2014-06-26 2014-10-01 龙口市丛林铝材有限公司 6-series railway vehicle suspension arm aluminum profile and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102418008A (en) * 2011-12-15 2012-04-18 贵州华科铝材料工程技术研究有限公司 High-strength aluminum alloy obtained by removing inclusion through HfC and preparation method of aluminum alloy
CN102418009A (en) * 2011-12-15 2012-04-18 贵州华科铝材料工程技术研究有限公司 Aluminum alloy capable of digesting high-hardness compounds and smelting method of aluminum alloy
CN102443725A (en) * 2011-12-15 2012-05-09 贵州华科铝材料工程技术研究有限公司 High-strength aluminum alloy treated by AlH3 and preparation method of high-strength aluminum alloy
CN104046852A (en) * 2014-06-26 2014-09-17 龙口市丛林铝材有限公司 Aluminum profile for motor train unit running in high and cold regions and preparation method thereof
CN104073698A (en) * 2014-06-26 2014-10-01 龙口市丛林铝材有限公司 6-series railway vehicle suspension arm aluminum profile and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107312957A (en) * 2017-06-06 2017-11-03 合肥饰界金属制品有限公司 High-strength aluminum alloy material and preparation method thereof
CN109140747A (en) * 2017-06-28 2019-01-04 宜兴市韦德同机械科技有限公司 A kind of accurate filter separator material

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