EP4063540A3 - Method of producing porous oxide layers on aluminum containing polymeric corrosion inhibitors - Google Patents

Method of producing porous oxide layers on aluminum containing polymeric corrosion inhibitors Download PDF

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Publication number
EP4063540A3
EP4063540A3 EP22000151.5A EP22000151A EP4063540A3 EP 4063540 A3 EP4063540 A3 EP 4063540A3 EP 22000151 A EP22000151 A EP 22000151A EP 4063540 A3 EP4063540 A3 EP 4063540A3
Authority
EP
European Patent Office
Prior art keywords
concentration
sodium
potassium
oxide layers
corrosion inhibitors
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Withdrawn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
EP22000151.5A
Other languages
German (de)
French (fr)
Other versions
EP4063540A2 (en
Inventor
Maciej Sowa
Wojciech Simka
Aleksander Olesinski
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.)
Politechnika Slaska im Wincentego Pstrowskiego
Original Assignee
Politechnika Slaska im Wincentego Pstrowskiego
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 Politechnika Slaska im Wincentego Pstrowskiego filed Critical Politechnika Slaska im Wincentego Pstrowskiego
Publication of EP4063540A2 publication Critical patent/EP4063540A2/en
Publication of EP4063540A3 publication Critical patent/EP4063540A3/en
Withdrawn legal-status Critical Current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
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/06—Anodisation of aluminium or alloys based thereon characterised by the electrolytes used
    • 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
    • C25D11/026—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
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/12—Anodising more than once, e.g. in different baths
    • 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
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

A method of forming oxide layers where an element of aluminum or its alloy is subjected to anodic polarization in a silicate, borate, hexametaphosphate bath or their mixture, preferably containing sodium or potassium silicate with a concentration from 1 to 120 g/dm3, sodium or potassium tetraborate with a concentration from 1 up to 120 g/dm3 sodium or potassium hexametaphosphate with a concentration from 1 to 240 g/dm3 sodium or potassium hydroxide with a concentration of 0.3 to 30 g/dm3 conducted under direct current or pulsed current regimes, while maintaining a current density of 0.1 A/dm2 up to 50 A/dm2, positive voltage from 250 to 800 V and negative voltage from 0 to -150 V, for 5 to 120 minutes, preferably rinsed in distilled water and dried, characterized by immersing the oxidised element in the liquid polymer monomer of aluminum corrosion inhibitor, and after its extraction and drying, it is subjected to the anodic polarization process again, which results in increasing the corrosion resistance of the metal substrate.
EP22000151.5A 2021-12-30 2022-06-08 Method of producing porous oxide layers on aluminum containing polymeric corrosion inhibitors Withdrawn EP4063540A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL440044A PL440044A1 (en) 2021-12-30 2021-12-30 Method of producing porous oxide layers on aluminum containing polymeric corrosion inhibitors

Publications (2)

Publication Number Publication Date
EP4063540A2 EP4063540A2 (en) 2022-09-28
EP4063540A3 true EP4063540A3 (en) 2022-11-09

Family

ID=81710183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22000151.5A Withdrawn EP4063540A3 (en) 2021-12-30 2022-06-08 Method of producing porous oxide layers on aluminum containing polymeric corrosion inhibitors

Country Status (2)

Country Link
EP (1) EP4063540A3 (en)
PL (1) PL440044A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210180203A1 (en) * 2019-12-11 2021-06-17 GM Global Technology Operations LLC Vacuum impregnation of anodic oxidation coating (aoc) treated surfaces on valve metal substrates

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1820882A1 (en) 2006-02-21 2007-08-22 Technische Universiteit Delft Self-healing layer on non-ferrous metals using polyoxometalates
CN101469425A (en) 2007-12-25 2009-07-01 中国科学院兰州化学物理研究所 Method for fabricating magnesium alloy super-hydrophobic surface
GB2469115B (en) 2009-04-03 2013-08-21 Keronite Internat Ltd Process for the enhanced corrosion protection of valve metals
GB2513575B (en) 2013-04-29 2017-05-31 Keronite Int Ltd Corrosion and erosion-resistant mixed oxide coatings for the protection of chemical and plasma process chamber components
RU2528285C1 (en) 2013-06-10 2014-09-10 Федеральное государственное бюджетное учреждение науки Институт химии Дальневосточного отделения Российской академии наук Method of anticorrosion processing of aluminium alloys
CN107190302B (en) 2017-05-19 2019-02-26 中国科学院金属研究所 A kind of compound protective coating and preparation method thereof for realizing the dual selfreparing of magnesium alloy
CN108330472A (en) 2018-02-05 2018-07-27 西华师范大学 A method of the double hydroxy metal oxide coating corrosion resistances of enhancing Mg alloy surface

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210180203A1 (en) * 2019-12-11 2021-06-17 GM Global Technology Operations LLC Vacuum impregnation of anodic oxidation coating (aoc) treated surfaces on valve metal substrates

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOWA MACIEJ ET AL: "Corrosion Inhibitor-Modified Plasma Electrolytic Oxidation Coatings on 6061 Aluminum Alloy", MATERIALS, vol. 14, no. 3, 29 January 2021 (2021-01-29), pages 619, XP055963075, DOI: 10.3390/ma14030619 *

Also Published As

Publication number Publication date
EP4063540A2 (en) 2022-09-28
PL440044A1 (en) 2022-05-23

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