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DK0401483T3 - Method of electrically connecting non-corrosible anodes to the corrosible core of a supply cable insulated with a standard insulation material - Google Patents

Method of electrically connecting non-corrosible anodes to the corrosible core of a supply cable insulated with a standard insulation material

Info

Publication number
DK0401483T3
DK0401483T3 DK90105585.5T DK90105585T DK0401483T3 DK 0401483 T3 DK0401483 T3 DK 0401483T3 DK 90105585 T DK90105585 T DK 90105585T DK 0401483 T3 DK0401483 T3 DK 0401483T3
Authority
DK
Denmark
Prior art keywords
anode
cable
bushings
corrosible
tubing
Prior art date
Application number
DK90105585.5T
Other languages
Danish (da)
Inventor
Gian Luigi Mussinelli
John Thomas Reding
Original Assignee
Oronzio De Nora Sa
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 Oronzio De Nora Sa filed Critical Oronzio De Nora Sa
Application granted granted Critical
Publication of DK0401483T3 publication Critical patent/DK0401483T3/en

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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/20—Conducting electric current to electrodes
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/10—Electrodes characterised by the structure
    • 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F2213/00—Aspects of inhibiting corrosion of metals by anodic or cathodic protection
    • C23F2213/30—Anodic or cathodic protection specially adapted for a specific object
    • C23F2213/31—Immersed structures, e.g. submarine structures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Prevention Of Electric Corrosion (AREA)
  • Cable Accessories (AREA)

Abstract

An improved method of connecting one or more non-corrodible valve metal anodes, the surfaces of which have been activated by a deposit of a non-passivatable material, to the corrodible core of an insulated power supply in order to produce a flexible anode assembly to be used for the cathodic protection of metallic structures. In the inventive method, a plurality of ductile metal bushings (7, 8, 9) are disposed over a tubular valve metal anode (6) provided with a corrosion resistant outer surface. The power supply cable (2) is passed through at least one piece of an elastomeric tubing (5a, 5b) having an inner diameter slightly larger than the cable insulation and an outer diameter slightly smaller than the inner diameter of the anode. The cable and tubing is passed through the anode until a segment of the cable, previously stripped of its insulating sheath, and supplied with a highly conductive split collar (4a, 4b) having a thickness substantially similar to the combined thickness of the cable insulation and elastomeric tubing, is underneath one of the bushings, and at least one piece of the tubing is located on at least one side of the stripped cable segment and underneath at least one of the bushings. After the anode is in place, the circumference thereof is reduced at positions corresponding to the bushings by cold-heading. The inventive method can be used to form a seal between the anode and cables insulated with low cost and chemically resistant non-elastomeric insulating materials.
DK90105585.5T 1989-05-26 1990-03-23 Method of electrically connecting non-corrosible anodes to the corrosible core of a supply cable insulated with a standard insulation material DK0401483T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US35871789A 1989-05-26 1989-05-26

Publications (1)

Publication Number Publication Date
DK0401483T3 true DK0401483T3 (en) 1995-04-03

Family

ID=23410744

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90105585.5T DK0401483T3 (en) 1989-05-26 1990-03-23 Method of electrically connecting non-corrosible anodes to the corrosible core of a supply cable insulated with a standard insulation material

Country Status (5)

Country Link
EP (1) EP0401483B1 (en)
AT (1) ATE116010T1 (en)
DE (1) DE69015260T2 (en)
DK (1) DK0401483T3 (en)
ES (1) ES2066028T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2042415B1 (en) * 1992-05-07 1997-02-01 W W I Proytec S L PRINTED CURRENT CATHODIC PROTECTION SYSTEM FOR METAL PARTS OF VESSELS.
GB9221706D0 (en) * 1992-10-15 1992-12-02 Raychem Sa Nv Repair of damaged electrode in impressed current corrosion protection system
DE19732172B4 (en) * 1997-07-25 2007-08-02 Norddeutsche Seekabelwerke Gmbh & Co. Kg Method for eliminating defects in the production of pipes for cables
EP3751020A1 (en) * 2019-06-10 2020-12-16 Investigación y desarrollo naval S.L.U. Method and system for generating one or more compounds comprising chlorine on a portion of a surface submerged in salt water
CN112195473B (en) * 2020-09-12 2022-07-12 青岛赢海防腐防污技术有限公司 Power-on protection device for inner wall of pipeline, construction method and machining method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1163581B (en) * 1983-06-23 1987-04-08 Oronzio De Nora Sa PROCEDURE FOR CARRYING OUT THE ELECTRICAL CONNECTION OF NON-CORRODIBLE ANODES TO THE CORRODIBLE SOUL OF THE POWER CORD

Also Published As

Publication number Publication date
DE69015260D1 (en) 1995-02-02
EP0401483B1 (en) 1994-12-21
ES2066028T3 (en) 1995-03-01
EP0401483A1 (en) 1990-12-12
ATE116010T1 (en) 1995-01-15
DE69015260T2 (en) 1995-05-18

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