CN104404317A - High-strength air conditioner radiator aluminium alloy piece and preparation method thereof - Google Patents
High-strength air conditioner radiator aluminium alloy piece and preparation method thereof Download PDFInfo
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- CN104404317A CN104404317A CN201410684019.2A CN201410684019A CN104404317A CN 104404317 A CN104404317 A CN 104404317A CN 201410684019 A CN201410684019 A CN 201410684019A CN 104404317 A CN104404317 A CN 104404317A
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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
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/06—Making non-ferrous alloys with the use of special agents for refining or deoxidising
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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
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Abstract
The invention discloses a high-strength air conditioner radiator aluminium alloy piece which comprises the following chemical elements in mass percent: 0.55-0.67 of Si, 0.05-0.10 of In, 0.67-0.87 of Mg, 0.21-0.63 of Bi, 0.25-0.51 of Mn, 0.14-0.42 of Fe and the balance of Al. The high-strength air condition radiator aluminium alloy piece is reasonable in formula, so that the strength, the castability and the corrosion stability of the aluminium alloy piece are improved; with adoption of the production method disclosed by the invention, the phenomena that aluminium alloy delaminates, peels, bubbles and cracks are reduced, and the yield is increased; the refining effect of a refining agent is excellent, so that the air hole and slag inclusion phenomena are remarkably reduced.
Description
Technical field
The present invention relates to aluminium alloy heat sink material field, particularly relate to a kind of high strength air conditioner heat radiator aluminum alloy sheet and preparation method thereof.
Background technology
Air conditioner heat radiator is the key part of air-conditioning, is related to working efficiency and the work-ing life of air-conditioning.And along with domestic air conditioning miniaturization and the requirement reducing manufacturing cost, the thickness of air-conditioner foil fin is more and more thinner, towards future development that is thinning, that become hard, high-precision, requires new alloy, new processing technology and new quality height.The requirement on machining accuracy of air-conditioner foil fin is high, requires that aluminium foil has good plasticity and higher intensity.Mainly there is bad mechanical property in current air conditioner heat radiator aluminium foil, as tensile strength (140Rm/MPa), yield strength (100R
0.2/ MPa), hardness (9-12 degree) is more weak, poor electric conductivity, poor thermal conductivity, the shortcomings such as poor plasticity.
Often there are the quality problems of stratification, peeling, bubble, crackle in aluminum alloy heat sink, depends on the complete processings such as founding, extrusion temperature, extrusion speed, therefore needs the production technique improving radiator element, improve the performance of radiator element.
Summary of the invention
The object of the present invention is to provide a kind of high strength air conditioner heat radiator aluminum alloy sheet and preparation method thereof, the intensity of this aluminium alloy be high, castability and corrosion stability good, the phenomenon of stratification, peeling, bubble, crackle is few, pore and slag inclusion phenomenon few.
Technical scheme of the present invention is as follows:
A kind of high strength air conditioner heat radiator aluminum alloy sheet, is characterized in that: the chemical element composition that it contains and mass percent thereof are: Si0.55-0.67, In 0.05-0.10, Mg0.67-0.87, Bi0.21-0.63, Mn0.25-0.51, Fe0.14-0.42, remaining as Al.
The production method of described high strength air conditioner heat radiator aluminum alloy sheet, is characterized in that:
(1) prepare burden, melting, temperature is 740-755 DEG C, smelting time 3.5-4 hour;
(2) refining, temperature is 740-755 DEG C, and refining agent consumption is 1.6% of aluminum alloy melt weight, and refining time is 26-30 minute, leaves standstill 15-20 minute;
(3) cast, adopt 50 height of eye temperature ceramic filter plate aluminum filtration liquid, then cast, temperature of aluminum liquid is 700-710 DEG C, and the water cooling with 20-25 DEG C after casting is consistent with water temperature, sends in homogenizing stove, processes 6-7 hour at 575-585 DEG C;
(4) extrusion molding, extrusion speed is 2.0-2.6m/min, and casting rod temperature is 490-515 DEG C, and die temperature is 490-515 DEG C, and container temperature is 440-460 DEG C;
(5) the laggard sector-style cold quenching of extrusion molding, speed of cooling controls at 4-6 DEG C/S;
(6) tension leveling, extensibility remains on 0.8-1.4%;
(7) ageing treatment, aging temp is 160-168 DEG C, and the time is 8-9 hour, to obtain final product.
The production method of described high strength air conditioner heat radiator aluminum alloy sheet, is characterized in that: described refining agent is made up of the raw material of following weight part: potassium fluoborate 1-1.3, potassium fluoroaluminate 20-25, KCl22-27, SiCl4 1.5-3, CaF2 2-3, Na3AlF6 3.5-5.5, gac 1-2, CCl4 0.5-1.3, CaO0.3-0.6, MgO0.6-0.8, nanometer aluminium powder 0.3-0.6, rare earth 0.2-0.3, ethanol 15-20; Preparation method is: CaO, MgO, rare earth, gac are pulverized, cross 100 mesh sieves, mix with potassium fluoborate, potassium fluoroaluminate, KCl, CaF2, Na3AlF6, ethanol, grinding 20-30 minute, dry at 150-170 DEG C to over dry, spraying dry, then mix with other remaining components, grinding distribution is even, to obtain final product.
Beneficial effect of the present invention
Aluminum alloy sheet formula of the present invention is reasonable, adds the intensity of alloy slice, castability and corrosion stability; Production method of the present invention decreases the phenomenon of aluminium alloy stratification, peeling, bubble, crackle, improves yield rate; Refining agent refining effect of the present invention is good, significantly reduces pore and slag inclusion phenomenon.
Embodiment
A kind of high strength air conditioner heat radiator aluminum alloy sheet, the chemical element composition that it contains and mass percent thereof are: Si0.55-0.67, In 0.05-0.10, Mg0.67-0.87, Bi0.21-0.63, Mn0.25-0.51, Fe0.14-0.42, remaining as Al.
The production method of described high strength air conditioner heat radiator aluminum alloy sheet:
(1) prepare burden, melting, temperature is 750 DEG C, smelting time 3.8 hours;
(2) refining, temperature is 750 DEG C, and refining agent consumption is 1.6% of aluminum alloy melt weight, and refining time is 28 minutes, leaves standstill 18 minutes;
(3) cast, adopt 50 height of eye temperature ceramic filter plate aluminum filtration liquid, then cast, temperature of aluminum liquid is 705 DEG C, consistent with water temperature with the water cooling of 25 DEG C after casting, sends in homogenizing stove, at 580 DEG C, processes 6.5 hours;
(4) extrusion molding, extrusion speed is 2.3m/min, and casting rod temperature is 500 DEG C, and die temperature is 500 DEG C, and container temperature is 450 DEG C;
(5) the laggard sector-style cold quenching of extrusion molding, speed of cooling controls at 5 DEG C/S;
(6) tension leveling, extensibility remains on 1.2%;
(7) ageing treatment, aging temp is 164 DEG C, and the time is 8.5 hours, to obtain final product.
Described refining agent is made up of the raw material of following weight part (kilogram): potassium fluoborate 1.1, potassium fluoroaluminate 23, KCl23, SiCl4 2.3, CaF2 2.5, Na3AlF6 4.5, gac 1.5, CCl4 2, CaO0.5, MgO0.7, nanometer aluminium powder 0.4, rare earth 0.2, ethanol 18; Preparation method is: CaO, MgO, rare earth, gac are pulverized, cross 100 mesh sieves, mix with potassium fluoborate, potassium fluoroaluminate, KCl, CaF2, Na3AlF6, ethanol, grind 25 minutes, dry at 160 DEG C to over dry, spraying dry, then mix with other remaining components, grinding distribution is even, to obtain final product.
Experimental data
According to YS/T95.1 standard, the tensile strength of 1122 state aluminium foils is 130MPa, elongation 19%, Erichsen number 6.2mm.
Claims (3)
1. a high strength air conditioner heat radiator aluminum alloy sheet, is characterized in that: the chemical element composition that it contains and mass percent thereof are: Si0.55-0.67, In 0.05-0.10, Mg0.67-0.87, Bi0.21-0.63, Mn0.25-0.51, Fe0.14-0.42, remaining as Al.
2. the production method of high strength air conditioner heat radiator aluminum alloy sheet according to claim 1, is characterized in that:
(1) prepare burden, melting, temperature is 740-755 DEG C, smelting time 3.5-4 hour;
(2) refining, temperature is 740-755 DEG C, and refining agent consumption is 1.6% of aluminum alloy melt weight, and refining time is 26-30 minute, leaves standstill 15-20 minute;
(3) cast, adopt 50 height of eye temperature ceramic filter plate aluminum filtration liquid, then cast, temperature of aluminum liquid is 700-710 DEG C, and the water cooling with 20-25 DEG C after casting is consistent with water temperature, sends in homogenizing stove, processes 6-7 hour at 575-585 DEG C;
(4) extrusion molding, extrusion speed is 2.0-2.6m/min, and casting rod temperature is 490-515 DEG C, and die temperature is 490-515 DEG C, and container temperature is 440-460 DEG C;
(5) the laggard sector-style cold quenching of extrusion molding, speed of cooling controls at 4-6 DEG C/S;
(6) tension leveling, extensibility remains on 0.8-1.4%;
(7) ageing treatment, aging temp is 160-168 DEG C, and the time is 8-9 hour, to obtain final product.
3. the production method of high strength air conditioner heat radiator aluminum alloy sheet according to claim 2, is characterized in that: described refining agent is made up of the raw material of following weight part: potassium fluoborate 1-1.3, potassium fluoroaluminate 20-25, KCl22-27, SiCl4 1.5-3, CaF2 2-3, Na3AlF6 3.5-5.5, gac 1-2, CCl4 0.5-1.3, CaO0.3-0.6, MgO0.6-0.8, nanometer aluminium powder 0.3-0.6, rare earth 0.2-0.3, ethanol 15-20; Preparation method is: CaO, MgO, rare earth, gac are pulverized, cross 100 mesh sieves, mix with potassium fluoborate, potassium fluoroaluminate, KCl, CaF2, Na3AlF6, ethanol, grinding 20-30 minute, dry at 150-170 DEG C to over dry, spraying dry, then mix with other remaining components, grinding distribution is even, to obtain final product.
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| CN201410684019.2A CN104404317A (en) | 2014-11-25 | 2014-11-25 | High-strength air conditioner radiator aluminium alloy piece and preparation method thereof |
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| CN201410684019.2A CN104404317A (en) | 2014-11-25 | 2014-11-25 | High-strength air conditioner radiator aluminium alloy piece and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863813A (en) * | 2016-06-17 | 2016-08-17 | 安徽天祥空调科技有限公司 | Multilayer stacked modular radiator and preparation method thereof |
| CN106086554A (en) * | 2016-06-17 | 2016-11-09 | 安徽天祥空调科技有限公司 | Air conditioner heat radiator aluminum alloy sheet that a kind of high intensity is anti-fracture and moulding process thereof |
| CN109576523A (en) * | 2018-12-29 | 2019-04-05 | 安徽鑫铂铝业股份有限公司 | A kind of purification method of heat transmission aluminium alloy |
| CN110343915A (en) * | 2019-06-25 | 2019-10-18 | 广东伟业铝厂集团有限公司 | A kind of aluminum alloy materials and preparation method thereof, the radiator of high intensity high thermal conductivity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390266A (en) * | 1999-11-17 | 2003-01-08 | 克里斯铝轧制品有限公司 | Aluminium brazing alloy |
| CN1918310A (en) * | 2004-01-12 | 2007-02-21 | 美铝公司 | High-conductivity finstock alloy, method of manufacture and resultant product |
| CN101205577A (en) * | 2006-12-18 | 2008-06-25 | 广东凤铝铝业有限公司 | Leadless easy-cutting aluminium alloy and manufacturing technology thereof |
| CN103710598A (en) * | 2013-12-17 | 2014-04-09 | 芜湖万润机械有限责任公司 | Preparation method of corrosion-resistant aluminum alloy profile for radiators |
-
2014
- 2014-11-25 CN CN201410684019.2A patent/CN104404317A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390266A (en) * | 1999-11-17 | 2003-01-08 | 克里斯铝轧制品有限公司 | Aluminium brazing alloy |
| CN1918310A (en) * | 2004-01-12 | 2007-02-21 | 美铝公司 | High-conductivity finstock alloy, method of manufacture and resultant product |
| CN101205577A (en) * | 2006-12-18 | 2008-06-25 | 广东凤铝铝业有限公司 | Leadless easy-cutting aluminium alloy and manufacturing technology thereof |
| CN103710598A (en) * | 2013-12-17 | 2014-04-09 | 芜湖万润机械有限责任公司 | Preparation method of corrosion-resistant aluminum alloy profile for radiators |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863813A (en) * | 2016-06-17 | 2016-08-17 | 安徽天祥空调科技有限公司 | Multilayer stacked modular radiator and preparation method thereof |
| CN106086554A (en) * | 2016-06-17 | 2016-11-09 | 安徽天祥空调科技有限公司 | Air conditioner heat radiator aluminum alloy sheet that a kind of high intensity is anti-fracture and moulding process thereof |
| CN109576523A (en) * | 2018-12-29 | 2019-04-05 | 安徽鑫铂铝业股份有限公司 | A kind of purification method of heat transmission aluminium alloy |
| CN110343915A (en) * | 2019-06-25 | 2019-10-18 | 广东伟业铝厂集团有限公司 | A kind of aluminum alloy materials and preparation method thereof, the radiator of high intensity high thermal conductivity |
| CN110343915B (en) * | 2019-06-25 | 2020-12-11 | 广东伟业铝厂集团有限公司 | High-strength high-thermal-conductivity aluminum alloy material, preparation method thereof and radiator |
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Application publication date: 20150311 |
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