EP0685574A3 - - Google Patents

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Publication number
EP0685574A3
EP0685574A3 EP95106891A EP95106891A EP0685574A3 EP 0685574 A3 EP0685574 A3 EP 0685574A3 EP 95106891 A EP95106891 A EP 95106891A EP 95106891 A EP95106891 A EP 95106891A EP 0685574 A3 EP0685574 A3 EP 0685574A3
Authority
EP
European Patent Office
Prior art keywords
high pressure
metal
coating
jet
clinging
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
EP95106891A
Other versions
EP0685574B1 (en
EP0685574A2 (en
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/en
Publication of EP0685574A3 publication Critical patent/EP0685574A3/xx
Application granted granted Critical
Publication of EP0685574B1 publication Critical patent/EP0685574B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

Abstract

A metal surface is prepared by erosion, being blasted by means of a high pressure fluid jet. The metal, after coating with a further metal layer, will become an electrode of high dimensional stability, to be used in electrolytic processes. The outer surface is reactive, or can be activated. The impact of the jet removes foreign matter and any clinging remains of a previous coating, thanks to its high pressure, 1000 to 4000 bar, directed from a nozzle and impinging on the surface at an angle between 10 to 90 degrees .
EP95106891A 1994-06-01 1995-05-06 Process for the preparation of the coating process of reactivatable electrodes for electrolytic applications Expired - Lifetime EP0685574B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4419276 1994-06-01
DE4419276A DE4419276A1 (en) 1994-06-01 1994-06-01 Process for preparing the coating process of activatable or reactivatable electrodes for electrolytic purposes

Publications (3)

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

Family

ID=6519606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95106891A Expired - Lifetime EP0685574B1 (en) 1994-06-01 1995-05-06 Process for the preparation of the coating process of reactivatable electrodes for electrolytic applications

Country Status (5)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634637A1 (en) * 1996-08-27 1997-11-20 Siemens Ag Cleaning components of electron tubes esp. tubes with metallic vacuum housing, e.g. X=ray tubes
IT1317969B1 (en) * 2000-06-09 2003-07-21 Nora Elettrodi De ELECTRODE CHARACTERIZED BY A HIGH ADHESION OF A SURFACE CATALYTIC LAYER.
EP1304395A1 (en) * 2001-10-19 2003-04-23 Sulzer Markets and Technology AG Process for producing a thermally sprayed layer
JP4451471B2 (en) * 2006-11-20 2010-04-14 ペルメレック電極株式会社 Method for reactivating electrode for electrolysis

Citations (3)

* 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
EP0568315A1 (en) * 1992-04-28 1993-11-03 Progressive Technologies, Inc. Apparatus and method for blasting metallic surfaces
EP0576402A1 (en) * 1992-06-25 1993-12-29 Eltech Systems Corporation Electrodes of improved service life

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5584957A (en) * 1978-12-13 1980-06-26 Konishiroku Photo Ind Co Ltd Electrophotographic copier which permit combined copying with electric signal image
DE2949495C2 (en) * 1979-12-08 1983-05-11 Heraeus-Elektroden Gmbh, 6450 Hanau Electrode for electrolytic cells
DE3270207D1 (en) * 1981-04-06 1986-05-07 Eltech Systems Corp Recoating of electrodes
JPS5950195A (en) * 1982-09-14 1984-03-23 Toagosei Chem Ind Co Ltd Regenerating method of cathode
JPS6257710A (en) * 1985-09-06 1987-03-13 Sumitomo Metal Ind Ltd Surface conditioning method for shape steel
JPH02182315A (en) * 1989-01-09 1990-07-17 Sumitomo Metal Ind Ltd Removing method and device for scale of hot rolled steel sheet
DE4032862A1 (en) * 1990-10-12 1992-04-16 Bergmann Borsig Gmbh Surface treatment of turbine blades prior to flame spray coating - with high speed water jet to increase coating adhesion
JPH05169130A (en) * 1991-12-24 1993-07-09 Nippon Steel Corp Method and device for eliminating scale of metallic stock

Patent Citations (3)

* 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
EP0568315A1 (en) * 1992-04-28 1993-11-03 Progressive Technologies, Inc. Apparatus and method for blasting metallic surfaces
EP0576402A1 (en) * 1992-06-25 1993-12-29 Eltech Systems Corporation Electrodes of improved service life

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 7613, Derwent World Patents Index; AN 76-23653X *

Also Published As

Publication number Publication date
EP0685574B1 (en) 1998-07-01
EP0685574A2 (en) 1995-12-06
DE4419276A1 (en) 1995-12-07
DE59502673D1 (en) 1998-08-06
ATE167901T1 (en) 1998-07-15
JPH07331477A (en) 1995-12-19
ES2120103T3 (en) 1998-10-16

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