EP0685574B1 - Verfahren zur Vorbereitung des Beschichtungsprozesses von reaktivierbaren Elektroden für elektrolytische Zwecke - Google Patents

Verfahren zur Vorbereitung des Beschichtungsprozesses von reaktivierbaren Elektroden für elektrolytische Zwecke Download PDF

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Publication number
EP0685574B1
EP0685574B1 EP95106891A EP95106891A EP0685574B1 EP 0685574 B1 EP0685574 B1 EP 0685574B1 EP 95106891 A EP95106891 A EP 95106891A EP 95106891 A EP95106891 A EP 95106891A EP 0685574 B1 EP0685574 B1 EP 0685574B1
Authority
EP
European Patent Office
Prior art keywords
electrodes
electrode
coating
nozzle
high pressure
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 - Lifetime
Application number
EP95106891A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0685574A2 (de
EP0685574A3 (enExample
Inventor
Gerhard Dehm
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.)
De Nora Deutschland GmbH
Original Assignee
Heraeus Elektrochemie GmbH
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 Heraeus Elektrochemie GmbH filed Critical Heraeus Elektrochemie GmbH
Publication of EP0685574A2 publication Critical patent/EP0685574A2/de
Publication of EP0685574A3 publication Critical patent/EP0685574A3/xx
Application granted granted Critical
Publication of EP0685574B1 publication Critical patent/EP0685574B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for

Definitions

  • DE 40 32 862 A1 describes a method for pretreating metallic surfaces known for thermal spray coatings, in which a constant on a component surface Water drop jet with a pressure of 2500 to 3500 bar hits as controlled erosion; To increase the erosive effect, solid particles can be added to the water as additives will.
  • the object of the invention is to use a method for pretreatment Specify metallic surfaces for reactivable electrodes, in which an enlarged Surface can be created and possibly firmly adhering local contaminants, or Remove residual coatings and passive layers and, if necessary, the surface roughen for the coating process.
  • the electrode substrate as well as inside already existing micro-structures or roughness of the substrate are unfavorable Case remain.
  • a major advantage is the fact that minimal changes in pressure and Nozzle system, the possibility exists of cutting already coated anodes without heat input, which leads to a deactivation and deterioration of the quality of the electrode in the Edge area could result.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Paints Or Removers (AREA)
EP95106891A 1994-06-01 1995-05-06 Verfahren zur Vorbereitung des Beschichtungsprozesses von reaktivierbaren Elektroden für elektrolytische Zwecke Expired - Lifetime EP0685574B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4419276 1994-06-01
DE4419276A DE4419276A1 (de) 1994-06-01 1994-06-01 Verfahren zur Vorbereitung des Beschichtungsprozesses von aktivierbaren oder reaktivierbaren Elektroden für elektrolytische Zwecke

Publications (3)

Publication Number Publication Date
EP0685574A2 EP0685574A2 (de) 1995-12-06
EP0685574A3 EP0685574A3 (enExample) 1996-01-03
EP0685574B1 true EP0685574B1 (de) 1998-07-01

Family

ID=6519606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95106891A Expired - Lifetime EP0685574B1 (de) 1994-06-01 1995-05-06 Verfahren zur Vorbereitung des Beschichtungsprozesses von reaktivierbaren Elektroden für elektrolytische Zwecke

Country Status (5)

Country Link
EP (1) EP0685574B1 (enExample)
JP (1) JPH07331477A (enExample)
AT (1) ATE167901T1 (enExample)
DE (2) DE4419276A1 (enExample)
ES (1) ES2120103T3 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634637A1 (de) * 1996-08-27 1997-11-20 Siemens Ag Verfahren zur Reinigung von Bauteilen von Elektronenröhren
IT1317969B1 (it) * 2000-06-09 2003-07-21 Nora Elettrodi De Elettrodo caratterizzato da elevata adesione di uno strato cataliticosuperficiale.
EP1304395A1 (de) * 2001-10-19 2003-04-23 Sulzer Markets and Technology AG Verfahren zum Herstellen einer thermischen Spritzschicht
US7611588B2 (en) 2004-11-30 2009-11-03 Ecolab Inc. Methods and compositions for removing metal oxides
JP4451471B2 (ja) * 2006-11-20 2010-04-14 ペルメレック電極株式会社 電解用電極の再活性化方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032862A1 (de) * 1990-10-12 1992-04-16 Bergmann Borsig Gmbh Verfahren zur vorbehandlung metallischer oberflaechen fuer thermische spritzbeschichtungen

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5118937A (en) * 1974-08-07 1976-02-14 Kobe Steel Ltd Chitanzaino hyomenshorihoho
JPS5584957A (en) * 1978-12-13 1980-06-26 Konishiroku Photo Ind Co Ltd Electrophotographic copier which permit combined copying with electric signal image
DE2949495C2 (de) * 1979-12-08 1983-05-11 Heraeus-Elektroden Gmbh, 6450 Hanau Elektrode für Elektrolysezellen
EP0063540B1 (en) * 1981-04-06 1986-04-02 Eltech Systems Corporation Recoating of electrodes
JPS5950195A (ja) * 1982-09-14 1984-03-23 Toagosei Chem Ind Co Ltd 陰極の再生法
JPS6257710A (ja) * 1985-09-06 1987-03-13 Sumitomo Metal Ind Ltd 形鋼の表面手入れ方法
JPH02182315A (ja) * 1989-01-09 1990-07-17 Sumitomo Metal Ind Ltd 熱間圧延鋼板のスケール除去方法および装置
US5314601A (en) * 1989-06-30 1994-05-24 Eltech Systems Corporation Electrodes of improved service life
JPH05169130A (ja) * 1991-12-24 1993-07-09 Nippon Steel Corp 金属材のスケール除去方法および装置
JP2586986B2 (ja) * 1992-04-28 1997-03-05 プログレツシイヴ ブラ−ステイング システムズ インコ−ポレイテツド 金属表面にブラストする装置と方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032862A1 (de) * 1990-10-12 1992-04-16 Bergmann Borsig Gmbh Verfahren zur vorbehandlung metallischer oberflaechen fuer thermische spritzbeschichtungen

Also Published As

Publication number Publication date
DE4419276A1 (de) 1995-12-07
ES2120103T3 (es) 1998-10-16
DE59502673D1 (de) 1998-08-06
ATE167901T1 (de) 1998-07-15
EP0685574A2 (de) 1995-12-06
JPH07331477A (ja) 1995-12-19
EP0685574A3 (enExample) 1996-01-03

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