BR112015020909A2 - material de alumínio, processos para preparar o material de alumínio e para unir duas ou mais formas de alumínio por brasagem, objeto, e, uso do material de alumínio - Google Patents

material de alumínio, processos para preparar o material de alumínio e para unir duas ou mais formas de alumínio por brasagem, objeto, e, uso do material de alumínio

Info

Publication number
BR112015020909A2
BR112015020909A2 BR112015020909A BR112015020909A BR112015020909A2 BR 112015020909 A2 BR112015020909 A2 BR 112015020909A2 BR 112015020909 A BR112015020909 A BR 112015020909A BR 112015020909 A BR112015020909 A BR 112015020909A BR 112015020909 A2 BR112015020909 A2 BR 112015020909A2
Authority
BR
Brazil
Prior art keywords
aluminum
aluminum material
brazing
forms
joining
Prior art date
Application number
BR112015020909A
Other languages
English (en)
Other versions
BR112015020909B1 (pt
Inventor
Henri Marois Pierre
Original Assignee
Novelis Inc
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 Novelis Inc filed Critical Novelis Inc
Publication of BR112015020909A2 publication Critical patent/BR112015020909A2/pt
Publication of BR112015020909B1 publication Critical patent/BR112015020909B1/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B23K35/0233—Sheets, foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/0012—Brazing heat exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/19—Soldering, e.g. brazing, or unsoldering taking account of the properties of the materials to be soldered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B23K35/0233—Sheets, foils
    • B23K35/0238—Sheets, foils layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
    • B23K35/286—Al as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
    • B23K35/286—Al as the principal constituent
    • B23K35/288—Al as the principal constituent with Sn or Zn
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B32B15/016—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of aluminium or aluminium alloys
    • 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
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/089—Coatings, claddings or bonding layers made from metals or metal alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12736—Al-base component
    • Y10T428/12764—Next to Al-base component

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Continuous Casting (AREA)

Abstract

1 / 321 1 / 1 resumo “material de alumã�nio, processos para preparar o material de alumã�nio e para unir duas ou mais formas de alumã�nio por brasagem, objeto, e, uso do material de alumã�nioâ€� este pedido divulga um material de alumã­nio de mãºltiplas camadas que tem um nãºcleo de liga de alumã­nio e revestimento de liga de alumã­nio, em que o revestimento de liga de alumã­nio contã©m 0,1 a 1,0% em peso de cu, 0,1 a 0,5% em peso de fe, 0,1 a 1,0% em peso de mn, 3 a 15% em peso de si, 0,005 a 0,15% em peso de ti e 0,1 a 7% em peso de zn, al restante. o revestimento de liga de alumã­nio tambã©m pode conter opcionalmente um ou mais de 0,001 a 0,3% em peso de mg, 0,001 a 0,01% em peso de ni ou 0,001 a 0,05% em peso de pelo menos um dentre sr, ca ou na. um processo para produzir o material tambã©m ã© descrito. o material pode ser produzido na forma de folha e ã© adequado para aplicaã§ã£o de brasagem. as formas de metal fabricadas a partir do material de alumã­nio de mãºltiplas camadas que compreendem etapas de brasagem tambã©m sã£o descritas.
BR112015020909-2A 2013-03-15 2014-03-14 Material de alumínio, processos para preparar o material de alumínio e para unir duas oumais formas de alumínio por brasagem, e uso do material de alumínio BR112015020909B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361789215P 2013-03-15 2013-03-15
US61/789215 2013-03-15
PCT/US2014/027921 WO2014143800A1 (en) 2013-03-15 2014-03-14 Clad sheet alloys for brazing applications

Publications (2)

Publication Number Publication Date
BR112015020909A2 true BR112015020909A2 (pt) 2017-07-18
BR112015020909B1 BR112015020909B1 (pt) 2020-03-17

Family

ID=50473806

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015020909-2A BR112015020909B1 (pt) 2013-03-15 2014-03-14 Material de alumínio, processos para preparar o material de alumínio e para unir duas oumais formas de alumínio por brasagem, e uso do material de alumínio

Country Status (9)

Country Link
US (2) US20140272463A1 (pt)
EP (1) EP2969376B1 (pt)
JP (1) JP6267317B2 (pt)
KR (1) KR101831505B1 (pt)
BR (1) BR112015020909B1 (pt)
CA (1) CA2901347C (pt)
ES (1) ES2677645T3 (pt)
MX (1) MX2015010848A (pt)
WO (1) WO2014143800A1 (pt)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2479296B1 (de) 2011-01-21 2017-06-21 Hydro Aluminium Rolled Products GmbH Verfahren zur Herstellung von einer Si-Primärpartikel freien Aluminiumlegierung
KR101831505B1 (ko) * 2013-03-15 2018-02-22 노벨리스 인크. 브레이징 용도를 위한 클래드 시트 합금
PT2015104760B (pt) * 2014-01-07 2019-12-12 Uacj Corp Material revestido de liga de alumínio e método para produção do mesmo, e permutador de calor utilizando o referido material revestido de liga de alumínio e método para produção do mesmo
EP3093356B1 (en) * 2014-01-10 2018-03-21 UACJ Corporation Cladded aluminium-alloy material and production method therefor, and heat exchanger using said cladded aluminium-alloy material and production method therefor
JP6498911B2 (ja) * 2014-11-10 2019-04-10 三菱アルミニウム株式会社 高強度・高耐食性・素材高伸びを有するアルミニウム合金ブレージングシート
CZ2015521A3 (cs) * 2015-07-28 2016-12-14 Univerzita J. E. Purkyně V Ústí Nad Labem Hliníková slitina, zejména pro výrobu odlitků segmentů forem pro lisování pneumatik, a způsob tepelného zpracování odlitků segmentů forem
CN108602317B (zh) * 2016-02-09 2021-05-25 爱励轧制产品德国有限责任公司 铝多层钎焊板制品和无钎剂钎焊方法
CN107234363A (zh) * 2017-06-21 2017-10-10 广东美的制冷设备有限公司 铝合金钎料及其制备方法
EP4037868A4 (en) * 2019-09-30 2023-04-19 Arconic Technologies LLC IMPROVED ALUMINUM ALLOY BRAZING SHEET FOR FLUXLESS BRAZING
CN118338984A (zh) * 2021-12-23 2024-07-12 奥科宁克技术有限责任公司 钎焊片材、由钎焊片材形成的制品以及形成制品的方法
CN116145058A (zh) * 2023-03-17 2023-05-23 北京工业大学 一种提高铝合金叠层复合板抗冲击性能的时效工艺

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843333A (en) * 1973-08-31 1974-10-22 Kaiser Aluminium Chem Corp Aluminum brazing sheet
US3970327A (en) 1975-06-04 1976-07-20 Caterpillar Tractor Co. Suspension and load leveling for an urban hauler
US4649087A (en) * 1985-06-10 1987-03-10 Reynolds Metals Company Corrosion resistant aluminum brazing sheet
JPH0199794A (ja) 1987-10-09 1989-04-18 Kobe Steel Ltd フラックスろう付用高耐食性高強度アルミニウムブレージングシート材料及びフラックスろう付方法
CA1309322C (en) 1988-01-29 1992-10-27 Paul Emile Fortin Process for improving the corrosion resistance of brazing sheet
CA1307175C (en) 1988-02-03 1992-09-08 Paul Emile Fortin Aluminum products having improved corrosion resistance
US5356725A (en) 1993-09-09 1994-10-18 Kaiser Aluminum & Chemical Corporation Corrosion-resistant aluminum alloy brazing composite
JPH0947892A (ja) 1995-08-07 1997-02-18 Furukawa Electric Co Ltd:The 熱交換器用アルミニウム合金ろう材ワイヤーとその製造方法およびこれを用いたアルミニウム合金製熱交換器の製造方法
JPH09302432A (ja) 1996-05-15 1997-11-25 Furukawa Electric Co Ltd:The 熱交換器のフイン用ブレージングシート
GB2321869B (en) * 1997-02-10 2001-05-30 Furukawa Electric Co Ltd Aluminum alloy brazing sheet
JP2000135588A (ja) * 1998-10-29 2000-05-16 Sumitomo Light Metal Ind Ltd 耐食性に優れた熱交換器用高強度アルミニウム合金クラッド材
JP2000297339A (ja) * 1999-04-09 2000-10-24 Mitsubishi Alum Co Ltd アルカリ環境下および酸性環境下での耐食性に優れた熱交換器用アルミニウム合金クラッド材
US6923876B2 (en) 2000-11-16 2005-08-02 Pechiney Rhenalu Aluminum alloy strip manufacturing process for the manufacture of brazed heat exchangers
NO20012206D0 (no) 2001-05-03 2001-05-03 Norsk Hydro As Aluminiumsplate
NO20016355D0 (no) 2001-12-21 2001-12-21 Norsk Hydro As Aluminium kjöleribbe med forbedret styrke og bestandighet
US7255932B1 (en) 2002-04-18 2007-08-14 Alcoa Inc. Ultra-longlife, high formability brazing sheet
JP4166613B2 (ja) 2002-06-24 2008-10-15 株式会社デンソー 熱交換器用アルミニウム合金フィン材および該フィン材を組付けてなる熱交換器
PL378708A1 (pl) 2003-06-24 2006-05-15 Novelis Inc. Sposób odlewania wlewka dwuwarstwowego
JP2008006480A (ja) * 2006-06-30 2008-01-17 Sumitomo Light Metal Ind Ltd 熱交換器用ブレージングフィン材並びに熱交換器及びその製造方法
CN102209629A (zh) * 2008-11-10 2011-10-05 阿勒里斯铝业科布伦茨有限公司 对铝进行无钎剂钎焊的方法以及用于该方法的钎焊板
US20110204124A1 (en) 2008-11-10 2011-08-25 Aleris Aluminum Koblenz Gmbh Process for fluxless brazing of aluminium and brazing filler alloy for use therein
BRPI0923615A2 (pt) 2008-12-23 2016-01-12 Novelis Inc chapa de metal, tubo feito de chapa de metal revestida, e, coletor de radiador
JP5466409B2 (ja) 2009-01-22 2014-04-09 株式会社神戸製鋼所 熱交換器用アルミニウム合金クラッド材
JP5302751B2 (ja) * 2009-04-21 2013-10-02 株式会社デンソー 熱交換器用アルミニウム合金クラッド材
CN103917328B (zh) 2011-11-11 2016-08-31 爱励轧制产品德国有限责任公司 用于无钎焊剂钎焊的铝合金板制品或挤压制品
KR101831505B1 (ko) 2013-03-15 2018-02-22 노벨리스 인크. 브레이징 용도를 위한 클래드 시트 합금

Also Published As

Publication number Publication date
EP2969376A1 (en) 2016-01-20
ES2677645T3 (es) 2018-08-06
JP6267317B2 (ja) 2018-01-24
US9908202B2 (en) 2018-03-06
JP2016518986A (ja) 2016-06-30
BR112015020909B1 (pt) 2020-03-17
KR101831505B1 (ko) 2018-02-22
MX2015010848A (es) 2016-06-16
EP2969376B1 (en) 2018-06-13
US20140272463A1 (en) 2014-09-18
WO2014143800A1 (en) 2014-09-18
CA2901347A1 (en) 2014-09-18
US20140272462A1 (en) 2014-09-18
CA2901347C (en) 2017-08-29
KR20150129858A (ko) 2015-11-20

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Legal Events

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B06F Objections, documents and/or translations needed after an examination request according art. 34 industrial property law
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
B07A Technical examination (opinion): publication of technical examination (opinion)
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

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