CN102286682A - High-strength hard aluminum alloy - Google Patents
High-strength hard aluminum alloy Download PDFInfo
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- CN102286682A CN102286682A CN201110243443XA CN201110243443A CN102286682A CN 102286682 A CN102286682 A CN 102286682A CN 201110243443X A CN201110243443X A CN 201110243443XA CN 201110243443 A CN201110243443 A CN 201110243443A CN 102286682 A CN102286682 A CN 102286682A
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Abstract
The high-strength hard aluminum alloy which contains the following metal elements: 0.5-1.5% of silicon, 0.5-1.0% of iron, 2.5-6.5% of copper, 0.5-1.0% of manganese, 2-4% of magnesium, 0.03-0.1% of nickel, 0.1-0.5% of zinc, 0.25-0.55% of titanium, 0.005-0.01% of beryllium, 0.22-0.52% of niobium, 0.35-0.75% of chromium and the balance of aluminum. The alloy obtained in the invention can be strengthened by high heat treatment and has good plasticity in annealing and just quenching states, can be subjected to quenching and aging treatment and has serving stability, and can be used for manufacturing high-complex parts and components, such as frame parts on aircrafts and welded components of rivets, compressor blades, disks, containers and the like.
Description
Technical field
The present invention relates to a kind of high-strength rigid aluminium alloy.
Background technology
Aluminium alloy can be divided into sex change aluminium alloy and cast aluminium alloy according to working method, wrought aluminium alloy is divided into not heat-treatable strengthened type aluminium alloy and heat-treatable strengthened type aluminium alloy again, the latter can improve mechanical property by thermal treatment means such as quenching and timeliness, can be divided into duralumin, wrought aluminium (the LD+ numeral trade mark), ultralumin and particular aluminum alloy etc.The Al-Zn-Mg-Cu that with 7*** is code name is the deformation ultra-high-strength aluminum alloy, has high specific tenacity and rigidity, easily processing, corrosion resistance nature and higher fracture toughness property preferably, wherein the 7A04 aluminium alloy is ripe relatively in the ultrahigh-strength aluminum alloy, the more of a specified duration and wider a kind of Deformed Aluminum alloy of use, the shortcoming of this alloy is that structure stability is bad, and low cycle fatigue intensity is low, and the stress corrosion crack tendency is arranged.
Summary of the invention
In order to overcome the deficiencies in the prior art, technical problem to be solved by this invention provides a kind of high-strength rigid aluminium alloy.
For solving the problems of the technologies described above, the present invention realizes like this
A kind of high-strength rigid aluminium alloy, contain following metallic element: silicon 0.5-1.5%, iron 0.5-1.0%, copper 2.5-6.5%, manganese 0.5-1.0%, magnesium 2-4%, nickel 0.03-0.1%, zinc 0.1-0.5%, titanium 0.25-0.55%, the aluminium of niobium 0.22-0.52%, chromium 0.35-0.75%, beryllium 0.005-0.01% and surplus.
The preparation method of high-strength rigid aluminium alloy may further comprise the steps:
(1), body of heater is heated to 730～800 ℃, in proportion each raw material is carried out melting, after stirring, through refining, slagging-off, degasification, 700～750 ℃ leave standstill the insulation 20-50min after, do stokehold sampling analysis, adjustment,, in casting machine, carry out cast bar to guarantee each constituent content within allowed band, cast bar is imported milling train, the temperature that imports milling train is 500～550 ℃, and deriving temperature is 300～400 ℃, heats in the course of hot rolling;
(2), with the different big or small aluminum alloy strips of cold rolling one-tenth on the aluminum alloy bar milling train;
(3), with aluminium alloy at 500～550 ℃, the solution heat treatment of 2-10h.
Iron can increase DIMENTIONAL STABILITY and support performance, makes it at high temperature have high strength, hardness, but excessive iron and copper form the Cu2FeA7 component and reduces the required copper amount of annealing effect;
Silicon combines with iron, prevents that iron from combining the tensile property that reduces alloy with copper;
Copper can improve intensity, the hardness of aluminium alloy, but can reduce extensibility;
Magnesium can improve the molten admittedly thermal treatment of X alloy and the intensity of the back alloy that quenches, and makes aluminium alloy at room temperature have higher intensity and extension performance, but can reduce tensile strength.Addition element magnesium can improve the intensity of alloy system in zinciferous aluminium alloy, because of magnesium and zinc formation MgZn.But can reduce the overall corrosion resistance of aluminium, can overcome this shortcoming by adding copper or chromium.
Manganese can increase the recrystallize humidity of aluminium alloy, improves processibility, opourability and the welding property of aluminium alloy;
Nickel, the solid solubility in aluminium is no more than 0.04%, if greater than 0.04%, nickel is insoluble intermediate metal, and many and iron combines, and can improve the intensity of fine aluminium, but reduce its ductility.
Titanium, niobium element can crystal grain thinnings, and the processing of control casting original state is with grain fineness number and shape in the ingot casting,
Manganese, chromium, beryllium can be controlled the grain fineness number that the thermal machine mechanism of product causes and change and alteration of form, and boron can be in order to precipitation vanadium, titanium, chromium, molybdenum simultaneously, thereby improve the specific conductivity of alloy.
The alloy that the present invention obtains is a kind of high strength duralumin, can carry out high heat treatment reinforcement, good in annealing and firm as-quenched condition plasticity, can quench and ageing treatment, dress ornament has good stability, can be used to make high compound part and member, as the skeleton part on the aircraft, rivet, compressor blade, disk, as the weldment of container etc.The aluminium alloy that obtains is 430-600MPa in the tensile strength of T6 state, and elongation is 7-11%, and yield strength is 400-600MPa.
Embodiment
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1
A kind of high-strength rigid aluminium alloy contains following metallic element: silicon 0.5%, iron 0.5%, copper 2.5%, manganese 0.5%, magnesium 2%, nickel 0.03%, zinc 0.1%, titanium 0.25%, the aluminium of niobium 0.22%, chromium 0.35%, beryllium 0.005% and surplus.
The preparation method of high-strength rigid aluminium alloy may further comprise the steps: (1), body of heater is heated to 730-750 ℃, in proportion each raw material is carried out melting, after stirring, through refining, slagging-off, degasification, 700～700 ℃ leave standstill the insulation 20min after, do stokehold sampling analysis, adjustment, to guarantee that each constituent content is within allowed band, carry out cast bar in casting machine, cast bar is imported milling train, the temperature that imports milling train is 500-520 ℃, deriving temperature is 300-320 ℃, heats in the course of hot rolling; (2), with the different big or small aluminum alloy strips of cold rolling one-tenth on the aluminum alloy bar milling train; (3), with aluminium alloy at 500～520 ℃, the solution heat treatment of 2-5h.
The aluminium alloy that obtains is 580MPa in the tensile strength of T6 state, and elongation is 11%, and yield strength is 550MPa.
Embodiment 2
A kind of high-strength rigid aluminium alloy contains following metallic element: silicon 1.5%, iron 1.0%, copper 6.5%, manganese 1.0%, magnesium 4%, nickel 0.1%, zinc 0.5%, titanium 0.55%, the aluminium of niobium 0.52%, chromium 0.75%, beryllium 0.01% and surplus.The preparation method is with the method for embodiment 1.
The aluminium alloy that obtains is 530MPa in the tensile strength of T6 state, and elongation is 9%, and yield strength is 510MPa.
Embodiment 3
A kind of high-strength rigid aluminium alloy contains following metallic element: silicon 1.0%, iron 0.8%, copper 4.3%, manganese 0.7%, magnesium 2.5%, nickel 0.08%, zinc 0.35%, titanium 0.38%, the aluminium of niobium 0.43%, chromium 0.45%, beryllium 0.007% and surplus.The preparation method is with the method for embodiment 1.
The aluminium alloy that obtains is 498MPa in the tensile strength of T6 state, and elongation is 7.9%, and yield strength is 500MPa.
Above-mentioned embodiment does not limit technical scheme of the present invention in any form, and the technical scheme that mode obtained that every employing is equal to replacement or equivalent transformation all drops on protection scope of the present invention.
Claims (1)
1. high-strength rigid aluminium alloy, it is characterized in that containing the metallic element of following weight percent: silicon 0.5-1.5%, iron 0.5-1.0%, copper 2.5-6.5%, manganese 0.5-1.0%, magnesium 2-4%, nickel 0.03-0.1%, zinc 0.1-0.5%, titanium 0.25-0.55%, the aluminium of niobium 0.22-0.52%, chromium 0.35-0.75, beryllium 0.005-0.01% and surplus.
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| CN201110243443XA CN102286682A (en) | 2011-08-24 | 2011-08-24 | High-strength hard aluminum alloy |
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| CN201110243443XA CN102286682A (en) | 2011-08-24 | 2011-08-24 | High-strength hard aluminum alloy |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469036A (en) * | 2013-09-30 | 2013-12-25 | 东北轻合金有限责任公司 | Aluminum alloy round cast ingot for high-quality welding wires and manufacturing method thereof |
| CN103556089A (en) * | 2013-10-28 | 2014-02-05 | 哈尔滨电机厂有限责任公司 | Process for heat treatment of collecting ring aluminum fan blades of turbine generator |
| CN103660443A (en) * | 2013-11-20 | 2014-03-26 | 茹林宝 | Aluminum plastic plate |
| CN104046856A (en) * | 2014-07-01 | 2014-09-17 | 张家港市佳晟机械有限公司 | Aluminum-copper-magnesium-based hard aluminum alloy |
| CN104791256A (en) * | 2015-04-24 | 2015-07-22 | 陈思 | Oil conveying pump |
| CN104975213A (en) * | 2015-06-12 | 2015-10-14 | 浙江米皇铝业股份有限公司 | Environment-friendly high-toughness hard aluminum alloy profile production process |
| CN105385907A (en) * | 2015-12-23 | 2016-03-09 | 常熟市虹桥铸钢有限公司 | Thermal treatment process for alloy automobile hub casting |
| CN105506423A (en) * | 2015-08-25 | 2016-04-20 | 国网山东省电力公司临沂供电公司 | Electronic safety belt clamp |
| CN106319301A (en) * | 2016-09-23 | 2017-01-11 | 安徽丰磊制冷工程有限公司 | Production method of fan blade applied to air filters |
| CN107964611A (en) * | 2017-10-30 | 2018-04-27 | 芜湖辉灿电子科技有限公司 | A kind of highly thermally conductive low shielding phone housing and its manufacture method |
| CN111560546A (en) * | 2020-04-29 | 2020-08-21 | 广东凤铝铝业有限公司 | Aluminum alloy with high crushing performance and preparation method of section bar of aluminum alloy |
| CN111674120A (en) * | 2020-05-13 | 2020-09-18 | 宁波华源精特金属制品有限公司 | Connecting rod |
| CN115786785A (en) * | 2022-11-17 | 2023-03-14 | 大连科天新材料有限公司 | High-strength and high-toughness heat-treatment-free die-casting aluminum-magnesium alloy, and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3798676B2 (en) * | 2001-11-01 | 2006-07-19 | 九州三井アルミニウム工業株式会社 | Method for producing semi-melt molded billet of aluminum alloy for transportation equipment |
-
2011
- 2011-08-24 CN CN201110243443XA patent/CN102286682A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3798676B2 (en) * | 2001-11-01 | 2006-07-19 | 九州三井アルミニウム工業株式会社 | Method for producing semi-melt molded billet of aluminum alloy for transportation equipment |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103469036A (en) * | 2013-09-30 | 2013-12-25 | 东北轻合金有限责任公司 | Aluminum alloy round cast ingot for high-quality welding wires and manufacturing method thereof |
| CN103556089A (en) * | 2013-10-28 | 2014-02-05 | 哈尔滨电机厂有限责任公司 | Process for heat treatment of collecting ring aluminum fan blades of turbine generator |
| CN103556089B (en) * | 2013-10-28 | 2015-08-19 | 哈尔滨电机厂有限责任公司 | Ring collector of steam turbine electric generator aluminium fan leaf thermal treatment process |
| CN103660443A (en) * | 2013-11-20 | 2014-03-26 | 茹林宝 | Aluminum plastic plate |
| CN104046856B (en) * | 2014-07-01 | 2016-04-27 | 张家港市佳晟机械有限公司 | A kind of aluminum bronze magnesium system duralumin |
| CN104046856A (en) * | 2014-07-01 | 2014-09-17 | 张家港市佳晟机械有限公司 | Aluminum-copper-magnesium-based hard aluminum alloy |
| CN104791256A (en) * | 2015-04-24 | 2015-07-22 | 陈思 | Oil conveying pump |
| CN104975213A (en) * | 2015-06-12 | 2015-10-14 | 浙江米皇铝业股份有限公司 | Environment-friendly high-toughness hard aluminum alloy profile production process |
| CN104975213B (en) * | 2015-06-12 | 2017-04-12 | 浙江米皇铝业股份有限公司 | Environment-friendly high-toughness hard aluminum alloy profile production process |
| CN105506423A (en) * | 2015-08-25 | 2016-04-20 | 国网山东省电力公司临沂供电公司 | Electronic safety belt clamp |
| CN105385907A (en) * | 2015-12-23 | 2016-03-09 | 常熟市虹桥铸钢有限公司 | Thermal treatment process for alloy automobile hub casting |
| CN106319301A (en) * | 2016-09-23 | 2017-01-11 | 安徽丰磊制冷工程有限公司 | Production method of fan blade applied to air filters |
| CN107964611A (en) * | 2017-10-30 | 2018-04-27 | 芜湖辉灿电子科技有限公司 | A kind of highly thermally conductive low shielding phone housing and its manufacture method |
| CN111560546A (en) * | 2020-04-29 | 2020-08-21 | 广东凤铝铝业有限公司 | Aluminum alloy with high crushing performance and preparation method of section bar of aluminum alloy |
| CN111674120A (en) * | 2020-05-13 | 2020-09-18 | 宁波华源精特金属制品有限公司 | Connecting rod |
| CN115786785A (en) * | 2022-11-17 | 2023-03-14 | 大连科天新材料有限公司 | High-strength and high-toughness heat-treatment-free die-casting aluminum-magnesium alloy, and preparation method and application thereof |
| CN115786785B (en) * | 2022-11-17 | 2024-04-02 | 大连科天新材料有限公司 | High-strength and high-toughness heat-treatment-free die-casting aluminum magnesium alloy, and preparation method and application thereof |
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Application publication date: 20111221 |