CA2959264C - Formulations de placage de chrome trivalent et procedes - Google Patents

Formulations de placage de chrome trivalent et procedes Download PDF

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Publication number
CA2959264C
CA2959264C CA2959264A CA2959264A CA2959264C CA 2959264 C CA2959264 C CA 2959264C CA 2959264 A CA2959264 A CA 2959264A CA 2959264 A CA2959264 A CA 2959264A CA 2959264 C CA2959264 C CA 2959264C
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CA
Canada
Prior art keywords
electrolyte solution
mol
dissolving
per liter
alkali metal
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
CA2959264A
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English (en)
Other versions
CA2959264A1 (fr
Inventor
Vijaykumar S. Ijeri
Om Prakash
Stephen P. Gaydos
Subramanian Mohan
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.)
Boeing Co
Original Assignee
Boeing Co
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 Boeing Co filed Critical Boeing Co
Publication of CA2959264A1 publication Critical patent/CA2959264A1/fr
Application granted granted Critical
Publication of CA2959264C publication Critical patent/CA2959264C/fr
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
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/10—Electrodes, e.g. composition, counter electrode
    • 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
    • C25D21/14—Controlled addition of electrolyte components
    • 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
    • C25D21/16—Regeneration of process solutions
    • C25D21/18—Regeneration of process solutions of electrolytes
    • 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
    • C25D3/10—Electroplating: Baths therefor from solutions of chromium characterised by the organic bath constituents used
    • 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
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/615—Microstructure of the layers, e.g. mixed structure
    • C25D5/619—Amorphous layers
    • 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
    • C25D5/60—Electroplating characterised by the structure or texture of the layers
    • C25D5/623—Porosity of the layers
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Electroplating And Plating Baths Therefor (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

Une solution délectrolyte pour le chromage à partir du chrome trivalent est préparée en dissolvant un sel de chrome trivalent dans un liquide véhiculé aqueux (chrome [III], chlore ou sulfate de chrome [III]), en dissolvant un composé doxalate (oxalate de sodium/potassium ou acide oxalique),en dissolvant un sel métallique (sulfate ou chlorure daluminium), en dissolvant un sulfate de métal alcalin (sulfate de sodium ou de potassium) et en dissolvant un halogénure de métal alcalin (fluorure de sodium ou de potassium). Un substrat est chromé à partir du chrome trivalent, à laide de la solution délectrolyte en faisant passer un courant entre une cathode et une anode, au moyen de la solution délectrolyte, afin de déposer du chrome sur le substrat.
CA2959264A 2016-05-02 2017-02-24 Formulations de placage de chrome trivalent et procedes Active CA2959264C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/144,688 2016-05-02
US15/144,688 US20170314153A1 (en) 2016-05-02 2016-05-02 Trivalent chromium plating formulations and processes

Publications (2)

Publication Number Publication Date
CA2959264A1 CA2959264A1 (fr) 2017-11-02
CA2959264C true CA2959264C (fr) 2023-06-27

Family

ID=58632908

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2959264A Active CA2959264C (fr) 2016-05-02 2017-02-24 Formulations de placage de chrome trivalent et procedes

Country Status (3)

Country Link
US (1) US20170314153A1 (fr)
EP (1) EP3241928B1 (fr)
CA (1) CA2959264C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210017659A1 (en) * 2019-07-18 2021-01-21 The Boeing Company Functional chromium alloy plating from trivalent chromium electrolytes
US11661666B2 (en) 2019-10-10 2023-05-30 The Boeing Company Electrodeposited zinc and iron coatings for corrosion resistance
FR3110606A1 (fr) * 2020-05-20 2021-11-26 Institut De Recherche Technologique Matériaux, Métallurgie, Procédés Procédé de chromage dur à partir de chrome trivalent

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706636A (en) * 1971-02-19 1972-12-19 Du Pont Preparing plating bath containing chromic compound
US4543167A (en) * 1982-03-05 1985-09-24 M&T Chemicals Inc. Control of anode gas evolution in trivalent chromium plating bath
US7052592B2 (en) * 2004-06-24 2006-05-30 Gueguine Yedigarian Chromium plating method
US20080169199A1 (en) * 2007-01-17 2008-07-17 Chang Gung University Trivalent chromium electroplating solution and an electroplating process with the solution
CN101792917A (zh) * 2010-03-31 2010-08-04 哈尔滨工业大学 常温环保型硫酸盐三价铬电镀液的制备方法和电镀方法
KR101198353B1 (ko) * 2010-07-29 2012-11-09 한국기계연구원 3가크롬도금액 및 이를 이용한 도금방법
US8512541B2 (en) * 2010-11-16 2013-08-20 Trevor Pearson Electrolytic dissolution of chromium from chromium electrodes
CN105386089B (zh) * 2015-12-25 2018-04-24 武汉迪赛环保新材料股份有限公司 一种三价铬硬铬电镀溶液及其在硬铬电镀中的应用

Also Published As

Publication number Publication date
BR102017008137A2 (pt) 2017-11-07
EP3241928A3 (fr) 2018-01-10
US20170314153A1 (en) 2017-11-02
CA2959264A1 (fr) 2017-11-02
EP3241928B1 (fr) 2021-11-10
EP3241928A2 (fr) 2017-11-08

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