CA2054201A1 - Protection of lead-containing anodes during chromium electroplating - Google Patents

Protection of lead-containing anodes during chromium electroplating

Info

Publication number
CA2054201A1
CA2054201A1 CA2054201A CA2054201A CA2054201A1 CA 2054201 A1 CA2054201 A1 CA 2054201A1 CA 2054201 A CA2054201 A CA 2054201A CA 2054201 A CA2054201 A CA 2054201A CA 2054201 A1 CA2054201 A1 CA 2054201A1
Authority
CA
Canada
Prior art keywords
lead
acid
protection
chromium
chromium electroplating
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.)
Granted
Application number
CA2054201A
Other languages
French (fr)
Other versions
CA2054201C (en
Inventor
Kenneth Russ Newby
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.)
Atotech Deutschland GmbH and Co KG
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23714188&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2054201(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of CA2054201A1 publication Critical patent/CA2054201A1/en
Application granted granted Critical
Publication of CA2054201C publication Critical patent/CA2054201C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/04—Electroplating: Baths therefor from solutions of chromium

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)
  • Electroplating And Plating Baths Therefor (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Paints Or Removers (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Abstract

The present invention provides a process for electroplating chromium using lead anodes while achieving the advantages of using methanesulfonic acid without suffering the excessive anode-corrosion characteristics associated with that acid. Accordingly, chromium is electrodeposited from a bath containing chromic acid, sulfate and an alkylpolysulfonic acid containing from one to about three carbon atoms. The invention also provides a plating process for chromium electrodeposition, a plating bath for use in the inventive process, and a replenishment composition for existing plating baths.
CA002054201A 1989-11-06 1990-11-06 Protection of lead-containing anodes during chromium electroplating Expired - Lifetime CA2054201C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US43196389A 1989-11-06 1989-11-06
US431,963 1989-11-06
PCT/US1990/006422 WO1991006693A1 (en) 1989-11-06 1990-11-06 Protection of lead-containing anodes during chromium electroplating

Publications (2)

Publication Number Publication Date
CA2054201A1 true CA2054201A1 (en) 1991-05-07
CA2054201C CA2054201C (en) 2000-04-11

Family

ID=23714188

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002054201A Expired - Lifetime CA2054201C (en) 1989-11-06 1990-11-06 Protection of lead-containing anodes during chromium electroplating

Country Status (9)

Country Link
EP (1) EP0452471B1 (en)
JP (1) JPH04502786A (en)
AT (1) ATE150100T1 (en)
AU (1) AU638512B2 (en)
BR (1) BR9006995A (en)
CA (1) CA2054201C (en)
DE (1) DE69030176T2 (en)
SG (1) SG52702A1 (en)
WO (1) WO1991006693A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5192515A (en) * 1990-09-20 1993-03-09 Molecular Technology Corporation Reduction of nitrogen oxide and carbon monoxide in effluent gases
DE102006042076A1 (en) * 2006-09-05 2008-03-20 Goldschmidt Tib Gmbh A new additive for chromium electrolytes
EP2792770B1 (en) * 2013-04-17 2015-06-24 ATOTECH Deutschland GmbH Functional chromium layer with improved corrosion resistance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3402554A1 (en) * 1984-01-26 1985-08-08 LPW-Chemie GmbH, 4040 Neuss DEPOSITION OF HARD CHROME ON A METAL ALLOY FROM AN AQUEOUS ELECTROLYTE CONTAINING CHROME ACID AND SULFURIC ACID
US4588481A (en) * 1985-03-26 1986-05-13 M&T Chemicals Inc. Chromium plating bath for producing non-iridescent, adherent, bright chromium deposits at high efficiencies and substantially free of cathodic low current density etching
US4786378A (en) * 1987-09-01 1988-11-22 M&T Chemicals Inc. Chromium electroplating baths having reduced weight loss of lead and lead alloy anodes
US4810337A (en) * 1988-04-12 1989-03-07 M&T Chemicals Inc. Method of treating a chromium electroplating bath which contains an alkyl sulfonic acid to prevent heavy lead dioxide scale build-up on lead or lead alloy anodes used therein

Also Published As

Publication number Publication date
AU6756990A (en) 1991-05-31
EP0452471A1 (en) 1991-10-23
AU638512B2 (en) 1993-07-01
EP0452471B1 (en) 1997-03-12
WO1991006693A1 (en) 1991-05-16
CA2054201C (en) 2000-04-11
JPH04502786A (en) 1992-05-21
DE69030176D1 (en) 1997-04-17
ATE150100T1 (en) 1997-03-15
DE69030176T2 (en) 1997-07-10
EP0452471A4 (en) 1993-11-18
SG52702A1 (en) 1998-09-28
BR9006995A (en) 1991-10-22

Similar Documents

Publication Publication Date Title
US4889602B1 (en) Electroplating bath and method for forming zinc-nickel alloy coating
US3000800A (en) Copper-electroplating baths
US3901771A (en) One-side electrocoating
US3691027A (en) Method of producing corrosion resistant chromium plated articles
GB2101162A (en) Composition and process for electro-depositing composite nickel layers
CA1162505A (en) Process for high speed nickel and gold electroplate system
DE3568594D1 (en) Method for plating from an electroless plating bath
CA2054201A1 (en) Protection of lead-containing anodes during chromium electroplating
GB2189259B (en) Electroplating bath for forming zinc-nickel alloy coating
US3139393A (en) Electrodeposition
US4435254A (en) Bright nickel electroplating
SE8205087L (en) PROCEDURE TO INCREASE THE CORROSION RESISTANCE OF A GALVANIC SEPARATED PALLADIUM / NICKEL ALLOY
SE8201298L (en) BATH FOR GALVANIC DEPOSIT OF A PALLADIUM / NICKEL ALLOY
ES8407118A1 (en) Palladium electrolytic bath and method of making and using same.
DE3262272D1 (en) Process for the galvanic deposit of a zinc-nickel-alloy layer on a metal object, in particular on steel strip
SE8201297L (en) BATH FOR GALVANIC DEPOSIT OF A PALLADIUM / NICKEL ALLOY
US4764262A (en) High quality, bright nickel plating
JPS6479393A (en) Production of zinc-chromium electroplated steel sheet
JPS5770286A (en) Plating bath composition and plating method
US2976225A (en) Electrodeposition of nickel
Matsuda Manufacture of Zn--Fe Alloy Electroplated Steel Sheets at High Current Densities by Radial Cell.(Synopsis)
US2961386A (en) Electro-deposition of nickel
Hall Nickel-- Zinc Alloy Deposition From a Sulfamate Bath
Strube DIFFERENTIATION OF METHODS FOR ELECTRODEPOSITION OF ZINC AND ZINC ALLOYS
Akiyama et al. Electrodeposition of Zn--Cd Alloys From Sulfate Baths

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry