EP3719181A3 - Oxide layer and method of forming a thermally relaxed oxide layer - Google Patents

Oxide layer and method of forming a thermally relaxed oxide layer Download PDF

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Publication number
EP3719181A3
EP3719181A3 EP20168188.9A EP20168188A EP3719181A3 EP 3719181 A3 EP3719181 A3 EP 3719181A3 EP 20168188 A EP20168188 A EP 20168188A EP 3719181 A3 EP3719181 A3 EP 3719181A3
Authority
EP
European Patent Office
Prior art keywords
oxide layer
forming
thermally relaxed
phase
oxidation process
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.)
Pending
Application number
EP20168188.9A
Other languages
German (de)
French (fr)
Other versions
EP3719181A2 (en
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.)
LIZ LIGHTWEIGHT ENGINEERING ZERRER
Original Assignee
ELB Eloxalwerk Ludwigsburg Helmut Zerrer 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 ELB Eloxalwerk Ludwigsburg Helmut Zerrer GmbH filed Critical ELB Eloxalwerk Ludwigsburg Helmut Zerrer GmbH
Publication of EP3719181A2 publication Critical patent/EP3719181A2/en
Publication of EP3719181A3 publication Critical patent/EP3719181A3/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/026—Anodisation with spark discharge
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/024—Anodisation under pulsed or modulated current or potential
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/30—Anodisation of magnesium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/12—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
    • C25D11/08—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used containing inorganic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Formation Of Insulating Films (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)

Abstract

Es wird ein Verfahren zur Erzeugung einer thermisch relaxierten Oxidschicht auf einer Oberfläche eines Materials mittels eines elektrolytischen Oxidationsprozesses, wobei die Energie, die für den Oxidationsprozess benötigt wird, pulsweise zugeführt wird, und eine mittels dieses Verfahrens hergestellte Oxidschicht vorgeschlagen, wobei ein Energiepuls aus drei Phasen, nämlich Anfangsphase, Mittelphase und Endphase, besteht und die Energiezuführung zumindest in der Mittelphase entladungsfrei erfolgt.A method for producing a thermally relaxed oxide layer on a surface of a material by means of an electrolytic oxidation process, the energy required for the oxidation process being supplied in pulses, and an oxide layer produced by means of this method, with an energy pulse consisting of three phases , namely the initial phase, middle phase and end phase, and the energy supply takes place without discharge at least in the middle phase.

EP20168188.9A 2019-04-05 2020-04-06 Oxide layer and method of forming a thermally relaxed oxide layer Pending EP3719181A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019108982 2019-04-05

Publications (2)

Publication Number Publication Date
EP3719181A2 EP3719181A2 (en) 2020-10-07
EP3719181A3 true EP3719181A3 (en) 2020-11-18

Family

ID=70189847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20168188.9A Pending EP3719181A3 (en) 2019-04-05 2020-04-06 Oxide layer and method of forming a thermally relaxed oxide layer

Country Status (1)

Country Link
EP (1) EP3719181A3 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0950728A2 (en) * 1998-03-23 1999-10-20 Pioneer Metal Finishing Method and apparatus for anodizing objects
EP1774067A1 (en) * 2004-07-23 2007-04-18 Chemetall GmbH Method for producing a hard coating with high corrosion resistance on articles made of anodizable metals or alloys
WO2008120046A1 (en) * 2007-04-02 2008-10-09 Gostevs, Vladimirs Method of forming a protective ceramic coating on the surface of metal products
WO2010101390A2 (en) * 2009-03-04 2010-09-10 Kost Corporation Power supply for anodizing, anodizing method, and anodized film
WO2012107754A2 (en) * 2011-02-08 2012-08-16 Cambridge Nanolitic Limited Non-metallic coating and method of its production
US20170016134A1 (en) * 2014-02-25 2017-01-19 Safran Aircraft Engines Protective edge for a blade and method of manufacturing said edge
DE102016201951A1 (en) * 2016-02-10 2017-08-10 Automoteam Gmbh Hybrid component and method for producing a hybrid component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101275263B (en) 2007-12-18 2010-08-11 华南理工大学 Voltage step micro-arc oxidation method
GB2469115B (en) 2009-04-03 2013-08-21 Keronite Internat Ltd Process for the enhanced corrosion protection of valve metals
DE102011007424B8 (en) 2011-04-14 2014-04-10 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH A method of forming a coating on the surface of a light metal based substrate by plasma electrolytic oxidation and coated substrate

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0950728A2 (en) * 1998-03-23 1999-10-20 Pioneer Metal Finishing Method and apparatus for anodizing objects
EP1774067A1 (en) * 2004-07-23 2007-04-18 Chemetall GmbH Method for producing a hard coating with high corrosion resistance on articles made of anodizable metals or alloys
WO2008120046A1 (en) * 2007-04-02 2008-10-09 Gostevs, Vladimirs Method of forming a protective ceramic coating on the surface of metal products
WO2010101390A2 (en) * 2009-03-04 2010-09-10 Kost Corporation Power supply for anodizing, anodizing method, and anodized film
WO2012107754A2 (en) * 2011-02-08 2012-08-16 Cambridge Nanolitic Limited Non-metallic coating and method of its production
US20170016134A1 (en) * 2014-02-25 2017-01-19 Safran Aircraft Engines Protective edge for a blade and method of manufacturing said edge
DE102016201951A1 (en) * 2016-02-10 2017-08-10 Automoteam Gmbh Hybrid component and method for producing a hybrid component

Also Published As

Publication number Publication date
EP3719181A2 (en) 2020-10-07

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Owner name: LIZ LIGHTWEIGHT ENGINEERING ZERRER