DE50200704D1 - Process for cleaning and passivating zinc and zinc alloy surfaces - Google Patents

Process for cleaning and passivating zinc and zinc alloy surfaces

Info

Publication number
DE50200704D1
DE50200704D1 DE50200704T DE50200704T DE50200704D1 DE 50200704 D1 DE50200704 D1 DE 50200704D1 DE 50200704 T DE50200704 T DE 50200704T DE 50200704 T DE50200704 T DE 50200704T DE 50200704 D1 DE50200704 D1 DE 50200704D1
Authority
DE
Germany
Prior art keywords
zinc
cleaning
passivating
alloy surfaces
zinc alloy
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.)
Expired - Fee Related
Application number
DE50200704T
Other languages
German (de)
Inventor
Wolf-Dieter Franz
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.)
Individual
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE50200704D1 publication Critical patent/DE50200704D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
    • 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
    • C25D11/34—Anodisation of metals or alloys not provided for in groups C25D11/04 - C25D11/32
    • 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
    • C25D11/36—Phosphatising
    • 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
    • C25D5/34—Pretreatment of metallic surfaces to be electroplated

Abstract

Cleaning zinc or zinc alloy surfaces comprises passivating the surface, and treating with a solution containing phosphoric acid and an alcohol when the surface is connected to an anode. An Independent claim is also included for a process for coating a zinc or zinc alloy surface.
DE50200704T 2002-04-12 2002-04-12 Process for cleaning and passivating zinc and zinc alloy surfaces Expired - Fee Related DE50200704D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02008422A EP1361297B1 (en) 2002-04-12 2002-04-12 Method for cleaning and passivation of the surfaces of zinc or zincalloys

Publications (1)

Publication Number Publication Date
DE50200704D1 true DE50200704D1 (en) 2004-09-02

Family

ID=29225588

Family Applications (1)

Application Number Title Priority Date Filing Date
DE50200704T Expired - Fee Related DE50200704D1 (en) 2002-04-12 2002-04-12 Process for cleaning and passivating zinc and zinc alloy surfaces

Country Status (5)

Country Link
EP (1) EP1361297B1 (en)
AT (1) ATE272133T1 (en)
AU (1) AU2002329277A1 (en)
DE (1) DE50200704D1 (en)
WO (1) WO2003087438A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3716462A (en) * 1970-10-05 1973-02-13 D Jensen Copper plating on zinc and its alloys
US3663386A (en) * 1971-02-08 1972-05-16 Basf Wyandotte Corp Electrocleaner composition and process
GB1536177A (en) * 1976-12-07 1978-12-20 Nat Res Dev Anodising a compound semiconductor
JPS60248898A (en) * 1983-06-30 1985-12-09 Chobe Taguchi Derusting solution for electrolysis

Also Published As

Publication number Publication date
AU2002329277A1 (en) 2003-10-27
ATE272133T1 (en) 2004-08-15
EP1361297B1 (en) 2004-07-28
EP1361297A1 (en) 2003-11-12
WO2003087438A1 (en) 2003-10-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee