CN103352146A - Aluminum alloy - Google Patents
Aluminum alloy Download PDFInfo
- Publication number
- CN103352146A CN103352146A CN2013103328738A CN201310332873A CN103352146A CN 103352146 A CN103352146 A CN 103352146A CN 2013103328738 A CN2013103328738 A CN 2013103328738A CN 201310332873 A CN201310332873 A CN 201310332873A CN 103352146 A CN103352146 A CN 103352146A
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- aluminium
- flat tube
- aluminium alloy
- casting
- alloy
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 39
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 20
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 239000004411 aluminium Substances 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 17
- 238000001125 extrusion Methods 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000007670 refining Methods 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000009749 continuous casting Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052752 metalloid Inorganic materials 0.000 description 3
- 150000002738 metalloids Chemical class 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 229910052706 scandium Inorganic materials 0.000 description 2
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
Abstract
The present invention relates to an aluminum alloy and a preparation method thereof, wherein components of the aluminum alloy comprise: 0.05-0.09 wt% of Sc, 0.006-0.01 wt% of As, 0.35-0.4 wt% of Si, 0.45-0.5 wt% of Fe, 0.65-0.7 wt% of Mn, 0.09-0.1 wt% of Ti, and the balance of aluminum and inevitable impurities.
Description
Technical field
The present invention relates to a kind of aluminium alloy, more specifically, the invention still further relates to a kind of flat tube that utilizes this aluminium alloy to make, and the aluminium micro-channel heat exchanger that comprises this flat tube.
Background technology
Aluminium is the second largest metalloid material that output is only second to iron and steel, because performance is good, purposes is wide, and requirement is large, and cost recovery is low, is described as " omnipotent metal ".Statistics shows: have 113 industries to use aluminum products in existing 124 industries of China, interrelationship between industries is up to 91%, thereby the aluminium industry is one of mainstay starting material industry of national sustained economic development.Aluminium Thermal Performance of Micro Channels organ pipe is a kind of air-conditioning system novel environment-friendly refrigerant carrying conduit component (material) that is applied to, (European Union is defined as 1996 at first to obtain to force use at automotive air-conditioning system, China is defined as 2002), along with the rejuvenation and development of national automobile industry, driven the demand rapid growth to high-quality tide of motorism exchanging tube (air-conditioning aluminium flat conduit).
The exchange of aluminium micro channel heat is too thin owing to wall thickness with flat tube, the hole is little and many, production difficulty is very large, domestic interior-capital-enterprise does not have ability production at all, the producer that has the ability in the world at present to produce this product is few, and its production technology basically the external minority producer such as is entered by Norway's Hydro, Mitsubishi, Furukawa Electronic, Korea S one and monopolized.
Along with developing by leaps and bounds of Domestic Automotive Industry, the auto-parts degree domestic improves constantly, be badly in need of radiator of automobile air conditioner (comprising condenser and vaporizer) high-accuracy aluminum alloy porous flat pipe and circular pipe, add up according to relevant industries: 4-5kg/ of high-accuracy aluminum alloy porous flat pipe material of radiator of automobile air conditioner, wherein, corrugated tube type and cocurrent flow type condenser are 2-3kg/ with the aluminum alloy porous flat pipe material, and corrugated tube type and pipe type vaporizer are 2-2.5kg/ with aluminum alloy porous flat pipe and circular pipe.China has become the world the seventh-largest automobile making state and the big country of automobile market.Automobile factory's radiator of automobile air conditioner is the 13600-17000 ton with high-accuracy aluminum alloy tubing year total requiremants; In addition, a large amount of air conditioner heat radiator component markets (be about depot's dosage 3 times), amounting to a year total requiremants is the 54400-68000 ton.Along with the parallel-flow radiator of automobile air conditioner adopts environment-friendly type R134a refrigeration agent, radiator of automobile air conditioner will have very big increase with the demand of high-accuracy aluminum alloy porous flat pipe material, but these product technology contents are high, production difficulty is very big, domestic interior-capital-enterprise not yet can carry out scale production, and product relies on basically from external import of day.Full aluminium Thermal Performance of Micro Channels pipe is the critical material of making new type high efficient heat exchanger, is just becoming one of emphasis of at present field of air conditioning research both at home and abroad.
Micro channel heat exchanging tube (being commonly called as parallel-flow evaporator and condenser) is one of most important key components and parts material that is suitable for the New air conditioner in environment protecting mode system, is just becoming the at present emphasis of field of air conditioning research both at home and abroad.Find out as far back as two professors by Stanford Univ USA in 1981, the mandatory automotive air-conditioning system (automobile industry is called " parallel-flow ", and on January 1st, 2002 was played mandatory use in by China) that is applied to take environmental protection refrigerant R134a as refrigeration agent of beginning in 1996.The parallel-flow aluminium flat conduit is a kind of thin-walled porous flat tubulose material Tu.
Therefore, research obtains a kind of lightweight, good heat conductivity, and can break the material of external monopolization, become the technical barrier that China this area is needed solution badly.
That the flat tube of being made by aluminium alloy of the present invention has is lightweight, heat conductivility is high, and pull and stretch intensity is high, and the withstand voltage properties of circular hole Micro Channel Architecture is better, the advantage that waits.
Summary of the invention
The present invention relates to a kind of aluminium alloy, its composition comprises (wt%): Sc:0.05-0.09, As:0.006-0.01, S1:0.35-0.4, Fe:0.45-0.5, Mn:0.65-0.7, Ti:0.09-0.1, the aluminium of surplus and inevitable impurity.
The above-mentioned aluminium alloy of a kind of aluminium microchannel heat radiating flat tube, its composition comprises (wt%): Sc:0.07, As:0.008, Si:0.36, Fe:0.46, Mn:0.67, Ti:0.09, the aluminium of surplus and inevitable impurity.
The flat tube that a kind of above-mentioned aluminium alloy is made.
A kind of method of making aluminium alloy microchannel heat radiating flat tube, it comprises:
1) according to above-mentioned alloying constituent batching, then carry out aluminium alloy casting, in order to eliminate gas and nonmetallic impurity, carry out refining and modifying, after the refining alloy is injected mold, carry out Continuous casting process, casting rate is 2.6-3 rice per hour, and then casting is coiled,
2) cast-rolling stock is pushed, flat tube of the present invention adopts on the 400t extrusion machine with the extruding of diameter 65mm cylinder, extrusion process parameters: 360-380 ℃ of container temperature, 400-420 ℃ of ingot casting Heating temperature, 390-400 ℃ of mold heated temperature, extrusion speed 12-14m/min.
A kind of aluminium micro-channel heat exchanger, it comprises above-mentioned flat tube.
The invention still further relates to a kind of method of making aluminum alloy flat tube, it comprises:
1, according to above-mentioned alloying constituent batching, then carry out aluminium alloy casting, in order to eliminate gas and nonmetallic impurity, carry out refining and modifying, after the refining alloy is injected mold, carry out Continuous casting process, casting rate is per hour 3 meters, and then casting is coiled.
2, cast-rolling stock is pushed, flat tube of the present invention adopts on the 400t extrusion machine and pushes with diameter 65 cylinders, and tests repeatedly pushing trial-production and processing parameter, and extrusion temperature is too high, and mould is blocked up in the too thin easy appearance of flat tube wall thickness; Temperature is too low, and squeeze increases too many, and stifled mould phenomenon greatly also can appear in Die Elastic Deformation; Extrusion speed can not be too fast, otherwise in the middle of the flat tube phenomenons such as misrun, cavity can appear, the present invention is by testing many times the extrusion process parameters of having determined suitable aluminium alloy of the present invention, 360-380 ℃ of container temperature, 400-420 ℃ of ingot casting Heating temperature, 390-400 ℃ of mold heated temperature, extrusion speed 12-14m/min.
The below sketches the effect of alloying constituent of the present invention.
Alloy strength increases and improves along with Mn content, but its too high levels can produce frangible compounds MnA16, produces cracking follow-up when rolling, and Mn element of the present invention rationally not only guarantees intensity of aluminum alloy but also preferably plasticity is arranged.
Fe, Si also are aluminium alloy main component elements of the present invention, and constituent content is reasonable, can reduce casting crack proneness and resistance to deformation when rolling.
Thereby scandium significantly refinement cast alloy crystal grain, raising recrystallization temperature improves intensity and the toughness of aluminium alloy, and can significantly improve weldability, thermotolerance, corrosion stability and the thermostability of aluminium alloy.The density of scandium (Sc) is low, the effect that in aluminium and aluminium alloy, has simultaneously magnesium-yttrium-transition metal and this two metalloid of rare earth metal, but effect is large on the impact of aluminium alloy more than this two metalloid, contain that the Sc intensity of aluminum alloy is high, Heat stability is good, strong aging hardening effect is arranged, and preferred amounts of the present invention is Sc:0.05-0.09.
Applicant's discovery, As arsenic an amount of interpolation in aluminium alloy can improve intensity and the thermal conductivity of aluminum alloy flat tube, can cause that too much metal becomes fragile yet work as arsenic content, bad processing, and therefore, preferred amounts of the present invention is As:0.006-0.01.
Aluminum alloy flat tube of the present invention, tensile strength reaches 95-100MPa, and thermal conductivity reaches, 1.35-1.40w/ (m ℃)
The present invention is by the optimization of composition and technique, obtained lightweight, heat conductivility is high, tensile strength is high; The better flat tube of the withstand voltage properties of circular hole Micro Channel Architecture.
Embodiment:
The specific embodiment of the present invention is as described below, those skilled in the art are to be understood that, this technique is only for schematically illustrating, those skilled in the art can further clearly understand the present invention by the specific embodiment of the present invention given below, but they are not limitation of the invention.
Embodiment: according to the alloying constituent batching, al alloy component is (wt%): Sc:0.08, As:0.007, Si:0.38, Fe:0.46, Mn:0.65, Ti:0.09, then the aluminium of surplus and inevitable impurity carry out aluminium alloy casting, in order to eliminate gas and nonmetallic impurity, carry out refining and modifying, after the refining alloy is injected mold, carry out Continuous casting process, casting rate is per hour 3 meters, and then casting is coiled.
Cast-rolling stock is pushed, and flat tube of the present invention adopts on the 400t extrusion machine and pushes with diameter 65 cylinders, and tests repeatedly pushing trial-production and processing parameter, and extrusion temperature is too high, and mould is blocked up in the too thin easy appearance of flat tube wall thickness; Temperature is too low, and squeeze increases too many, and stifled mould phenomenon greatly also can appear in Die Elastic Deformation; Extrusion speed can not be too fast, otherwise the phenomenons such as misrun, cavity can occur in the middle of the flat tube, and the present invention is by testing many times the extrusion process parameters determined suitable aluminium alloy of the present invention, 370 ℃ of container temperature, and 410 ℃ of ingot casting Heating temperatures,
39 ℃ of mold heated temperature, extrusion speed 123m/min.
After tested, the present invention obtains flat tube tensile strength 96MPa, and thermal conductivity 1.36w/ (m ℃) has obtained needed performance.
Claims (5)
1. aluminium alloy, its composition comprises (wt%): Sc:0.05-0.09, As:0.006-0.01, Si:0.35-0.4, Fe:0.45-0.5, Mn:0.65-0.7, Ti:0.09-0.1, the aluminium of surplus and inevitable impurity.
2. aluminium microchannel heat radiating flat tube aluminium alloy, its composition comprises (wt%): Sc:0.07, As:0.008, Si:0.36, Fe:0.46, Mn:0.67, Ti:0.09, the aluminium of surplus and inevitable impurity.
3. flat tube of being made by the described aluminium alloy of claim 1-2.
4. method of making aluminium alloy microchannel heat radiating flat tube, it comprises:
1) then each described alloying constituent batching carries out aluminium alloy casting according to claim 1-2, in order to eliminate gas and nonmetallic impurity, carries out refining and modifying, after the refining alloy is injected mold, carry out Continuous casting process, casting rate is 2.6-3 rice per hour, then casting is coiled
2) cast-rolling stock is pushed, flat tube of the present invention adopts on the 400t extrusion machine with the extruding of diameter 65mm cylinder, extrusion process parameters: 360-380 ℃ of container temperature, 400-420 ℃ of ingot casting Heating temperature, 390-400 ℃ of mold heated temperature, extrusion speed 12-14m/min.
5. aluminium micro-channel heat exchanger, it comprises the described flat tube of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310332873.8A CN103352146B (en) | 2013-08-02 | 2013-08-02 | Aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310332873.8A CN103352146B (en) | 2013-08-02 | 2013-08-02 | Aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103352146A true CN103352146A (en) | 2013-10-16 |
| CN103352146B CN103352146B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310332873.8A Expired - Fee Related CN103352146B (en) | 2013-08-02 | 2013-08-02 | Aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103352146B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525117A (en) * | 2016-02-01 | 2016-04-27 | 安徽乾通教育制造有限公司 | Aluminum alloy material capable of being used for manufacturing cylinder cover and preparation method for aluminum alloy material |
| WO2021196482A1 (en) * | 2020-03-31 | 2021-10-07 | 江苏亨通电力特种导线有限公司 | High-performance aluminum material for air conditioner connecting pipe and preparation method therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1136581A1 (en) * | 2000-03-23 | 2001-09-26 | The Furukawa Electric Co., Ltd. | Method of manufacturing a fin material for brazing |
| CN101250649A (en) * | 2008-01-21 | 2008-08-27 | 浙江康盛股份有限公司 | Aluminum alloy for air conditioner tube and method for manufacturing same |
| CN103266246A (en) * | 2007-09-21 | 2013-08-28 | 阿勒里斯铝业科布伦茨有限公司 | Al-Cu-Li alloy product suitable for aerospace application |
-
2013
- 2013-08-02 CN CN201310332873.8A patent/CN103352146B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1136581A1 (en) * | 2000-03-23 | 2001-09-26 | The Furukawa Electric Co., Ltd. | Method of manufacturing a fin material for brazing |
| CN103266246A (en) * | 2007-09-21 | 2013-08-28 | 阿勒里斯铝业科布伦茨有限公司 | Al-Cu-Li alloy product suitable for aerospace application |
| CN101250649A (en) * | 2008-01-21 | 2008-08-27 | 浙江康盛股份有限公司 | Aluminum alloy for air conditioner tube and method for manufacturing same |
Non-Patent Citations (1)
| Title |
|---|
| 尤伟任等: "高质量铝合金系列杆材制造工艺探讨", 《电线电缆》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525117A (en) * | 2016-02-01 | 2016-04-27 | 安徽乾通教育制造有限公司 | Aluminum alloy material capable of being used for manufacturing cylinder cover and preparation method for aluminum alloy material |
| WO2021196482A1 (en) * | 2020-03-31 | 2021-10-07 | 江苏亨通电力特种导线有限公司 | High-performance aluminum material for air conditioner connecting pipe and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103352146B (en) | 2015-04-08 |
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| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Pengcheng Inventor after: Xia Zhisheng Inventor after: Fang Sanshui Inventor after: Sun Shujun Inventor before: Fang Zhijun Inventor before: Xia Zhisheng Inventor before: Fang Sanshui Inventor before: Sun Shujun |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: FANG ZHIJUN XIA ZHISHENG FANG SANSHUI SUN SHUJUN TO: WANG PENGCHENG XIA ZHISHENG FANG SANSHUI SUN SHUJUN |
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