CA2861302C - Controlled trivalent chromium pretreatment - Google Patents

Controlled trivalent chromium pretreatment Download PDF

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Publication number
CA2861302C
CA2861302C CA2861302A CA2861302A CA2861302C CA 2861302 C CA2861302 C CA 2861302C CA 2861302 A CA2861302 A CA 2861302A CA 2861302 A CA2861302 A CA 2861302A CA 2861302 C CA2861302 C CA 2861302C
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CA
Canada
Prior art keywords
chromium
substrate
coating
electrical potential
containing solution
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
CA2861302A
Other languages
English (en)
French (fr)
Other versions
CA2861302A1 (en
Inventor
Sameh DARDONA
Mark R. Jaworowski
Sergei F. Burlatsky
Dmitri Novikov
Lei Chen
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.)
Hamilton Sundstrand Corp
Original Assignee
Hamilton Sundstrand Corp
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 Hamilton Sundstrand Corp filed Critical Hamilton Sundstrand Corp
Publication of CA2861302A1 publication Critical patent/CA2861302A1/en
Application granted granted Critical
Publication of CA2861302C publication Critical patent/CA2861302C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium
    • C25D3/06—Electroplating: Baths therefor from solutions of chromium from solutions of trivalent chromium
    • 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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/18—Electroplating using modulated, pulsed or reversing current
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D9/00—Electrolytic coating other than with metals
    • C25D9/04—Electrolytic coating other than with metals with inorganic materials
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D9/00—Electrolytic coating other than with metals
    • C25D9/04—Electrolytic coating other than with metals with inorganic materials
    • C25D9/06—Electrolytic coating other than with metals with inorganic materials by anodic processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Electroplating Methods And Accessories (AREA)
CA2861302A 2013-10-12 2014-08-26 Controlled trivalent chromium pretreatment Active CA2861302C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/052,719 US9695523B2 (en) 2013-10-12 2013-10-12 Controlled trivalent chromium pretreatment
US14/052,719 2013-10-12

Publications (2)

Publication Number Publication Date
CA2861302A1 CA2861302A1 (en) 2015-04-12
CA2861302C true CA2861302C (en) 2022-06-21

Family

ID=52774773

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2861302A Active CA2861302C (en) 2013-10-12 2014-08-26 Controlled trivalent chromium pretreatment

Country Status (4)

Country Link
US (1) US9695523B2 (enExample)
BR (1) BR102014020006B1 (enExample)
CA (1) CA2861302C (enExample)
FR (1) FR3011853B1 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3043939B1 (fr) * 2015-11-19 2019-12-20 Safran Piece de moteur d'aeronef comportant un revetement de protection contre l'erosion et procede de fabrication d'une telle piece
EP3382062A1 (en) * 2017-03-31 2018-10-03 COVENTYA S.p.A. Method for increasing the corrosion resistance of a chrome-plated substrate
WO2019152556A1 (en) 2018-01-30 2019-08-08 Prc-Desoto International, Inc. Systems and methods for treating a metal substrate
US20220403540A1 (en) * 2019-11-22 2022-12-22 Ppg Industries Ohio, Inc. Methods for electrolytically depositing pretreatment compositions
CN111500962B (zh) * 2020-04-28 2022-04-29 中国石油大学(华东) 调控热浸镀锌铝合金镀层表面三价铬化学转化膜性能的成膜方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1531056A (en) * 1976-06-01 1978-11-01 Bnf Metals Tech Centre Electrolytic production of chromium conversion coatings
JPH0688370B2 (ja) 1989-03-31 1994-11-09 川崎製鉄株式会社 加工後耐食性に優れた有機被覆鋼板
US6004448A (en) * 1995-06-06 1999-12-21 Atotech Usa, Inc. Deposition of chromium oxides from a trivalent chromium solution containing a complexing agent for a buffer
US5820741A (en) * 1995-12-05 1998-10-13 Sanchem, Inc. Passification of zinc surfaces
US7101469B2 (en) 2004-11-10 2006-09-05 Atotech Deutschland Gmbh Metal pieces and articles having improved corrosion resistance

Also Published As

Publication number Publication date
US9695523B2 (en) 2017-07-04
FR3011853A1 (enExample) 2015-04-17
BR102014020006B1 (pt) 2021-10-26
US20150101934A1 (en) 2015-04-16
CA2861302A1 (en) 2015-04-12
BR102014020006A2 (pt) 2015-11-10
FR3011853B1 (fr) 2021-01-15

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