EP1505163A2 - Alliage d'aluminium avec une haute tenacité pour un echangeur de chaleur - Google Patents

Alliage d'aluminium avec une haute tenacité pour un echangeur de chaleur Download PDF

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Publication number
EP1505163A2
EP1505163A2 EP03029964A EP03029964A EP1505163A2 EP 1505163 A2 EP1505163 A2 EP 1505163A2 EP 03029964 A EP03029964 A EP 03029964A EP 03029964 A EP03029964 A EP 03029964A EP 1505163 A2 EP1505163 A2 EP 1505163A2
Authority
EP
European Patent Office
Prior art keywords
aluminum alloy
aluminum
cold
strip
rolling
Prior art date
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.)
Withdrawn
Application number
EP03029964A
Other languages
German (de)
English (en)
Other versions
EP1505163A3 (fr
Inventor
Lothar Dr Löchte
Wolf-Dieter Finkelnburg
Pascal Dr. Wagner
Raimund Sicking
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hydro Aluminium Deutschland GmbH
Original Assignee
Hydro Aluminium Deutschland GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hydro Aluminium Deutschland GmbH filed Critical Hydro Aluminium Deutschland GmbH
Priority to EP03029964A priority Critical patent/EP1505163A3/fr
Priority to JP2006521503A priority patent/JP2007500784A/ja
Priority to PCT/EP2004/008359 priority patent/WO2005010223A1/fr
Priority to EP04763503A priority patent/EP1649070A1/fr
Priority to AU2004259849A priority patent/AU2004259849A1/en
Priority to EA200600211A priority patent/EA200600211A1/ru
Priority to KR1020067001679A priority patent/KR20060030910A/ko
Priority to CA002533428A priority patent/CA2533428A1/fr
Priority to BRPI0412907-5A priority patent/BRPI0412907A/pt
Publication of EP1505163A2 publication Critical patent/EP1505163A2/fr
Publication of EP1505163A3 publication Critical patent/EP1505163A3/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • C22C1/02—Making non-ferrous alloys by melting
    • 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
    • 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
    • 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
    • C22F1/05—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 of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions

Definitions

  • the invention relates to a cold-curing Aluminum alloy for heat exchangers, a process for Production of a cold-hardenable aluminum strip as well an aluminum band or sheet.
  • Heat exchangers consisting of aluminum or aluminum alloys used. It has the use of aluminum Location of the previously used non-ferrous metal heat exchanger at comparable size and performance the weight of Heat exchanger almost halved.
  • Heat exchanger made of aluminum or an aluminum alloy are used today in the Motor vehicle usually for cooling the cooling water, oil and used in air conditioners.
  • Heat exchanger for Motor vehicles are usually made of aluminum bands or sheets produced by the individual prefabricated components of the heat exchanger, such as For example, fins, pipes and manifolds, by soldering be connected to each other.
  • the burdens in the practical use on such manufactured, in Automobiles built-in components due to jerky vibrations, longer lasting Vibrations, corrosive attack and the like act, are significant.
  • the present invention thus has the object based, a cold-hardenable aluminum alloy for Heat exchanger, a process for producing a Aluminum strip for heat exchangers and a corresponding To provide aluminum strip or sheet, which or which the economic use of the Inert gas soldering for the production of heat exchangers allows and at the same time high strength values after has a cold aging after soldering.
  • the above-mentioned and pointed out object for an aluminum alloy is achieved in that the aluminum alloy has the following alloy constituents in% by weight: Si ⁇ 0.7%, 0.1% ⁇ Mg ⁇ 0.3%, Fe ⁇ 0.3%, Cu ⁇ 0.2%, Ti ⁇ 0.2%, Mn ⁇ 0.1%, Cr ⁇ 0.1%, Zn ⁇ 0.1%, unavoidable accompanying elements individually max. 0.1%, in total max. 0.15% and balance aluminum.
  • the aluminum alloy according to the invention is readily suitable for inert gas soldering with non-corrosive fluxes, since reaction with the fluxes is only possible in small extent and can be dispensed with the use of expensive cesium-containing flux.
  • a Ti content of a maximum of 0.2% by weight has a positive effect on the Resistance of the invention Aluminum alloy against corrosion as the Alloying element Ti for grain refining of the microstructure Aluminum alloy contributes and thus one Corrosion attack evened.
  • the Zn content be limited to a maximum of 0.1 wt .-%.
  • the strength of the aluminum alloy according to the invention can, according to a first advantageous embodiment, by cold aging after soldering further characterized be increased that the aluminum alloy Si, Mg and Contains Cu as the main alloying elements.
  • Forming the method according to the invention produced tape in prefabricated components for the Heat exchangers, such as fins, pipes or Distributor, to facilitate this, by cold rolling on a final thickness of a maximum of 2 mm cold rolled strip one final annealing at a minimum of 300 ° C, preferably 350 ° C, subjected.
  • the alloy composition of the aluminum alloy in conjunction with the method features described above, it is possible on the basis of conventional alloying elements (Mg, Si, Cu) to produce heat exchangers which, after inert gas soldering and cold aging of about 30 days at room temperature, have yield strengths of RP 0.2 ⁇ 65MPa and are therefore particularly well suited for the enormous loads in the motor vehicle.
  • the inert gas soldering can be used without cesium-containing flux, so that an economical production is made possible.
  • a particularly high process reliability when soldering the Heat exchanger can be achieved by the Rolling bars after homogenizing with an aluminum solder is plated. That made from this rolling ingot Aluminum strip has a uniform layer of one Aluminum solder on which during soldering too special homogeneous and uniform solder joints, for example, between the fins, pipes and Distributors of the heat exchanger, leads. Will only one page the aluminum strip according to the invention with a Aluminum solder clad, may be the other side for example, with a serving as corrosion protection Alloy plated or coated.
  • aluminum solder is an aluminum alloy having a silicon content of 6 to 13% by weight, especially an AlSi7 or AlSi10 alloy, used, which is particularly good for inert gas soldering Wetting ability with respect to the wetting of in non-oxidizing atmosphere of remaining oxide layers on the components to be soldered with the heat exchanger Aluminum solder have.
  • the aluminum strip according to the invention or sheet metal has a maximum thickness of 2 mm, in particular 1 mm, on. Due to the higher strength compared to conventional Materials can in the use of the invention Aluminumbandes the strip thickness can be further reduced and thus material in the production of heat exchangers saved and a further reduction in the weight of Heat exchangers are achieved. The operational safety of Heat exchanger, even at higher operating pressures, due to the higher strength of the aluminum alloy not affected.
  • the single figure shows schematically a Production path for the realization of a Embodiment of a method for production a cold-hardenable aluminum strip for heat exchangers according to the second teaching of the invention.
  • the production path shown in the single figure comprises in a first step the ingot casting 1 made of an aluminum alloy.
  • the aluminum alloy of the exemplary embodiment in this case has the following alloy constituents in% by weight 0.60% ⁇ Si ⁇ 0.70%, 0.12% ⁇ Fe ⁇ 0.30%, 0.08% ⁇ Cu ⁇ 0.20%, 0.04% ⁇ Mn ⁇ 0.08%, 0.12% ⁇ Mg ⁇ 0.30%, Cr ⁇ 0.05%, Zn ⁇ 0.05%, 0.08% ⁇ Ti ⁇ 0.20%, B ⁇ 50 ppm, unavoidable accompanying elements max. 0.03%, in total max. 0.1% and the balance aluminum.
  • the low boron content of a maximum of 50 ppm improves the Recyclability of the aluminum alloy.
  • the from the just described aluminum alloy in the DC process cast ingots are then placed in a Homogenization stage 2 homogenized. Especially good Results regarding the homogenisation of the Roll ingots were used at a temperature of 575 ° C for more than 6 hours, in particular 12 hours. Afterwards the homogenization will be the rolling ingots on one Tandem framework 3a to a thickness of for example 7 mm hot rolled, in particular the final temperature at Hot rolling more than 300 ° C, preferably 330 ° C, amount must, in order to optimize the structure education during the To ensure hot rolling.
  • the Hot rolling but also on a Reversiergerüst 3 be carried out and on a not shown Reel wound and on the hot rolling in tandem framework 3a be waived.
  • the ensuing Cold rolling to a final thickness of about 1 mm is done on single or multi-stand rollers 4.
  • Like hot rolling may also be alternative to cold rolling done reversing on a Reversiergerüst.
  • the ingot after being homogenized in the homogenization stage 2, the ingot may be clad with an aluminum braze, for example of an AlSi7 or ALSi10 alloy, to subsequently apply an aluminum braze prior to brazing to avoid the heat exchangers produced from the strip according to the invention.
  • the ingot must be heated to a tempering temperature of at least 400 ° C, preferably 450 ° C before hot rolling.
  • soldering produced from the aluminum strip or sheet heat exchanger according to the invention could in particular in inert gas soldering waiving cesium-containing flux with temperatures up to 600 ° C and typical cooling rates of 30 ° C / min from 600 ° C to 200 ° C and a cold aging of approx. 30 days at room temperature after soldering particularly high strength values of the heat exchanger, in particular values for the elastic limit of RP 0.2 ⁇ 65 Mpa, can be achieved.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metal Rolling (AREA)
  • Conductive Materials (AREA)
  • Laminated Bodies (AREA)
EP03029964A 2003-07-25 2003-12-30 Alliage d'aluminium avec une haute tenacité pour un echangeur de chaleur Withdrawn EP1505163A3 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
EP03029964A EP1505163A3 (fr) 2003-07-25 2003-12-30 Alliage d'aluminium avec une haute tenacité pour un echangeur de chaleur
JP2006521503A JP2007500784A (ja) 2003-07-25 2004-07-26 熱交換器用の高強度合金
PCT/EP2004/008359 WO2005010223A1 (fr) 2003-07-25 2004-07-26 Alliage de grande resistance pour echangeur thermique
EP04763503A EP1649070A1 (fr) 2003-07-25 2004-07-26 Alliage de grande resistance pour echangeur thermique
AU2004259849A AU2004259849A1 (en) 2003-07-25 2004-07-26 Resistant alloy for heat exchangers
EA200600211A EA200600211A1 (ru) 2003-07-25 2004-07-26 Высокопрочный сплав для теплообменников
KR1020067001679A KR20060030910A (ko) 2003-07-25 2004-07-26 열교환기용 내열 합금
CA002533428A CA2533428A1 (fr) 2003-07-25 2004-07-26 Alliage de grande resistance pour echangeur thermique
BRPI0412907-5A BRPI0412907A (pt) 2003-07-25 2004-07-26 liga com elevada resistência para permutadores térmicos

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03016970 2003-07-25
EP03016970 2003-07-25
EP03029964A EP1505163A3 (fr) 2003-07-25 2003-12-30 Alliage d'aluminium avec une haute tenacité pour un echangeur de chaleur

Publications (2)

Publication Number Publication Date
EP1505163A2 true EP1505163A2 (fr) 2005-02-09
EP1505163A3 EP1505163A3 (fr) 2005-02-16

Family

ID=33553812

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03029964A Withdrawn EP1505163A3 (fr) 2003-07-25 2003-12-30 Alliage d'aluminium avec une haute tenacité pour un echangeur de chaleur
EP04763503A Withdrawn EP1649070A1 (fr) 2003-07-25 2004-07-26 Alliage de grande resistance pour echangeur thermique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP04763503A Withdrawn EP1649070A1 (fr) 2003-07-25 2004-07-26 Alliage de grande resistance pour echangeur thermique

Country Status (8)

Country Link
EP (2) EP1505163A3 (fr)
JP (1) JP2007500784A (fr)
KR (1) KR20060030910A (fr)
AU (1) AU2004259849A1 (fr)
BR (1) BRPI0412907A (fr)
CA (1) CA2533428A1 (fr)
EA (1) EA200600211A1 (fr)
WO (1) WO2005010223A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059450A1 (de) * 2008-11-28 2010-06-02 Behr Gmbh & Co. Kg Aluminiumband, Lötbauteil, Herstellungsverfahren und Wärmetauscher und Verwendung
CN101660883B (zh) * 2009-09-04 2011-10-26 东莞市奥达铝业有限公司 一种汽车铝合金散热片的生产方法
WO2021204929A1 (fr) * 2020-04-08 2021-10-14 Hydro Aluminium Rolled Products Gmbh Matériau d'aluminium al-mg-si plaqué par brasure à haute résistance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101453427B1 (ko) * 2012-04-20 2014-10-23 한국생산기술연구원 열교환기용 내측 라이너 및 핀 재료

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852873A (en) * 1972-05-23 1974-12-10 Chausson Usines Sa Method for manufacturing and brazing various apparatuses and particularly heat exchangers
GB1413719A (en) * 1972-05-23 1975-11-12 Cegedur Aluminium/magnesium/silicon alloys
JPH05263172A (ja) * 1992-03-17 1993-10-12 Furukawa Alum Co Ltd 熱交換器フィン材用アルミニウム合金
EP1158063A1 (fr) * 2000-05-22 2001-11-28 Norsk Hydro A/S Alliage d'aluminium présentant une grande résistance à la corrosion
US20020174923A1 (en) * 1998-09-16 2002-11-28 Showa Aluminum Corporation Method of manufacturing A1-Mg-Si series alloy plate excellent in thermal conductivity and intensity

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1335309A (en) * 1970-12-21 1973-10-24 Olin Corp Heat exchanger
JPS5461015A (en) * 1977-10-25 1979-05-17 Kobe Steel Ltd Manufacture of aluminum-soldered fin heat exchanger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852873A (en) * 1972-05-23 1974-12-10 Chausson Usines Sa Method for manufacturing and brazing various apparatuses and particularly heat exchangers
GB1413719A (en) * 1972-05-23 1975-11-12 Cegedur Aluminium/magnesium/silicon alloys
JPH05263172A (ja) * 1992-03-17 1993-10-12 Furukawa Alum Co Ltd 熱交換器フィン材用アルミニウム合金
US20020174923A1 (en) * 1998-09-16 2002-11-28 Showa Aluminum Corporation Method of manufacturing A1-Mg-Si series alloy plate excellent in thermal conductivity and intensity
EP1158063A1 (fr) * 2000-05-22 2001-11-28 Norsk Hydro A/S Alliage d'aluminium présentant une grande résistance à la corrosion

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
J.R.DAVIS: "ASM Speciality Handbook" M{rz 1996 (1996-03) , ASM INTERNATIONAL , USA XP002308401 ISBN: 0-87170-496-X *Legierung AA 8077* * Seite 20UND24 * *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 040 (C-1155), 21. Januar 1994 (1994-01-21) & JP 05 263172 A (FURUKAWA ALUM CO LTD), 12. Oktober 1993 (1993-10-12) *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008059450A1 (de) * 2008-11-28 2010-06-02 Behr Gmbh & Co. Kg Aluminiumband, Lötbauteil, Herstellungsverfahren und Wärmetauscher und Verwendung
US10926361B2 (en) 2008-11-28 2021-02-23 Mahle International Gmbh Multi-layered aluminum strip for brazing, brazing component, manufacturing method and heat exchanger and use
CN101660883B (zh) * 2009-09-04 2011-10-26 东莞市奥达铝业有限公司 一种汽车铝合金散热片的生产方法
WO2021204929A1 (fr) * 2020-04-08 2021-10-14 Hydro Aluminium Rolled Products Gmbh Matériau d'aluminium al-mg-si plaqué par brasure à haute résistance
CN115427188A (zh) * 2020-04-08 2022-12-02 斯佩拉有限公司 高强度焊料包层AlMgSi铝材
CN115427188B (zh) * 2020-04-08 2023-12-19 斯佩拉有限公司 铝材、热接合部件的方法、铝材在其中的应用及焊接部件
EP4309839A3 (fr) * 2020-04-08 2024-05-08 Speira GmbH Matériau d'aluminium al-mg-si plaqué par brasage à haute résistance

Also Published As

Publication number Publication date
AU2004259849A1 (en) 2005-02-03
JP2007500784A (ja) 2007-01-18
KR20060030910A (ko) 2006-04-11
EA200600211A1 (ru) 2006-08-25
WO2005010223A1 (fr) 2005-02-03
EP1505163A3 (fr) 2005-02-16
EP1649070A1 (fr) 2006-04-26
CA2533428A1 (fr) 2005-02-03
BRPI0412907A (pt) 2006-09-26

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