FR3087208B1 - Procede de traitement de surface de pieces en aluminium - Google Patents

Procede de traitement de surface de pieces en aluminium Download PDF

Info

Publication number
FR3087208B1
FR3087208B1 FR1859550A FR1859550A FR3087208B1 FR 3087208 B1 FR3087208 B1 FR 3087208B1 FR 1859550 A FR1859550 A FR 1859550A FR 1859550 A FR1859550 A FR 1859550A FR 3087208 B1 FR3087208 B1 FR 3087208B1
Authority
FR
France
Prior art keywords
salt
surface treatment
corrosion
equal
composition containing
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.)
Active
Application number
FR1859550A
Other languages
English (en)
Other versions
FR3087208A1 (fr
Inventor
Helene Cerda
Alex Jacoboni
Cedric Gagnepain
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.)
IRT Saint Exupery
Original Assignee
IRT Saint Exupery
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 IRT Saint Exupery filed Critical IRT Saint Exupery
Priority to FR1859550A priority Critical patent/FR3087208B1/fr
Priority to PCT/FR2019/052433 priority patent/WO2020079358A1/fr
Publication of FR3087208A1 publication Critical patent/FR3087208A1/fr
Application granted granted Critical
Publication of FR3087208B1 publication Critical patent/FR3087208B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/82—After-treatment
    • C23C22/83—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
    • C25D11/024—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
    • 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
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/246—Chemical after-treatment for sealing layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

L'invention concerne un procédé de traitement de surface d'une pièce en alliage d'aluminium, qui comprend une première étape de traitement de la pièce par oxydation micro-arcs, la pièce étant immergée dans un milieu électrolytique aqueux contenant un sel de silicate à une concentration supérieure ou égale à 2 g/l et un sel d'aluminate à une concentration supérieure ou égale à 1 g/l, et étant traversée par un courant électrique ; puis une deuxième étape de traitement de la pièce par mise en contact de la pièce successivement avec une première composition aqueuse contenant un sel métallique inhibiteur de corrosion, à l'exclusion d'un sel de chrome hexavalent, et un composé oxydant, puis une deuxième composition aqueuse contenant un sel de terre rare inhibiteur de corrosion et un composé oxydant. La pièce ainsi traitée présente une résistance élevée à la corrosion.
FR1859550A 2018-10-16 2018-10-16 Procede de traitement de surface de pieces en aluminium Active FR3087208B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1859550A FR3087208B1 (fr) 2018-10-16 2018-10-16 Procede de traitement de surface de pieces en aluminium
PCT/FR2019/052433 WO2020079358A1 (fr) 2018-10-16 2019-10-15 Procédé de traitement de surface de pièces en aluminium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1859550A FR3087208B1 (fr) 2018-10-16 2018-10-16 Procede de traitement de surface de pieces en aluminium

Publications (2)

Publication Number Publication Date
FR3087208A1 FR3087208A1 (fr) 2020-04-17
FR3087208B1 true FR3087208B1 (fr) 2020-10-30

Family

ID=65244298

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1859550A Active FR3087208B1 (fr) 2018-10-16 2018-10-16 Procede de traitement de surface de pieces en aluminium

Country Status (2)

Country Link
FR (1) FR3087208B1 (fr)
WO (1) WO2020079358A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3140382A1 (fr) * 2022-10-04 2024-04-05 Safran Landing Systems Procede de colmatage post-anodisation de l’aluminium et des alliages d’aluminium sans utiliser de chrome

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2808291B1 (fr) 2000-04-26 2003-05-23 Mofratech Procede electrolytique d'oxydation pour l'obtention d'un revetement ceramique a la surface d'un metal
US20060016690A1 (en) * 2004-07-23 2006-01-26 Ilya Ostrovsky Method for producing a hard coating with high corrosion resistance on articles made anodizable metals or alloys
GB2469115B (en) * 2009-04-03 2013-08-21 Keronite Internat Ltd Process for the enhanced corrosion protection of valve metals
FR2986806B1 (fr) 2012-02-10 2015-03-20 Mecaprotec Ind Procede de traitement de surface de pieces en alliage d'aluminium ou de magnesium
FR3017884B1 (fr) * 2014-02-25 2017-09-22 Snecma Bord de protection d'aube et son procede de fabrication
FR3059680B1 (fr) * 2016-12-07 2018-12-07 Figeac Aero Dispositif de fabrication par un procede d’oxydation micro-arcs

Also Published As

Publication number Publication date
FR3087208A1 (fr) 2020-04-17
WO2020079358A1 (fr) 2020-04-23

Similar Documents

Publication Publication Date Title
JP5299887B2 (ja) ３価クロムめっき皮膜用電解処理液
JP5527860B2 (ja) ステンレスの不動態化方法
GB784091A (en) Process for the production of copper coatings on base metals
MX2019005540A (es) Metodo para electrochapado de una tira de acero no recubierta con una capa de chapado.
MX2018003246A (es) Pretratamiento de superficies de aluminio con composiciones que contienen zirconio y molibdeno.
Loto et al. Performance evaluation of zinc anodes for cathodic protection of mild steel corrosion in HCL
FR3087208B1 (fr) Procede de traitement de surface de pieces en aluminium
CN104674319A (zh) 铝制品表面处理方法
CN103572360A (zh) 电解退镀液及应用该电解退镀液进行退镀的方法
ATE509146T1 (de) Verfahren zur elektrochemischen abtragung von refraktärmetallen oder -legierungen und verwendung einer lösung zur durchführung dieses verfahrens
Ajeel et al. Effects of H2SO4 and HCL concentration on the corrosion resistance of protected low carbon steel
GB1051665A (fr)
US9845547B2 (en) Electrolytic solution and method for surface treatment of aluminum alloys for casting
Aoyama et al. Introduction of Cu2+ to the inside of the crevice by chelation and its effect on crevice corrosion of Type 316L stainless steel
Volkova et al. Comparison of pitting corrosion tendency for castings made of Al6Ca, Al1Fe, Al6Ca1Fe experimental alloys and AK12M2 industrial alloy
Kadowaki et al. Corrosion behavior of pure Al under Fe rust deposition: Decrease in the corrosion resistance of Al caused by γ-FeOOH
Gouda et al. Corrosion inhibition of steel by hydrazine
RU2783432C1 (ru) Способ пассивации контактной поверхности оборудования из аустенитной никельсодержащей стали для защиты от воздействия агрессивных сред
JP2010121177A (ja) 耐食性に優れた表面処理鋼材
JP2007321219A (ja) 電解リン酸塩化成処理を用いた潤滑処理方法
Mainier et al. Evaluation of corrosion inhibitors in acid medium
RU2790853C2 (ru) Способ электролитно-плазменной сварки изделий из алюминия или его сплавов со сталью
JP5755508B2 (ja) ステンレス鋼用の電解研磨液およびステンレス鋼
Groshart Pickling and acid dipping
Pertile et al. Corrosion resistance of investment casting samples of CF 8 stainless steel in different passivation conditions

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20200417

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

PLFP Fee payment

Year of fee payment: 5

PLFP Fee payment

Year of fee payment: 6