FR2364274A1 - Protection cathodique d'une structure en mer par anodes sacrificielles - Google Patents
Protection cathodique d'une structure en mer par anodes sacrificiellesInfo
- Publication number
- FR2364274A1 FR2364274A1 FR7627443A FR7627443A FR2364274A1 FR 2364274 A1 FR2364274 A1 FR 2364274A1 FR 7627443 A FR7627443 A FR 7627443A FR 7627443 A FR7627443 A FR 7627443A FR 2364274 A1 FR2364274 A1 FR 2364274A1
- Authority
- FR
- France
- Prior art keywords
- sea
- cathodic protection
- type
- sacrificial anodes
- anodes
- 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
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
- C23F13/12—Electrodes characterised by the material
- C23F13/14—Material for sacrificial anodes
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
- E02B17/0017—Means for protecting offshore constructions
- E02B17/0026—Means for protecting offshore constructions against corrosion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
- B63B59/04—Preventing hull fouling
-
- 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)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Prevention Of Electric Corrosion (AREA)
- Revetment (AREA)
Abstract
L'invention a trait à un dispositif de protection cathodique d'une structure métallique en mer par anodes sacrificielles. Un tel dispositif comporte au moins une anode d'un premier type pour lequel le débit de courant est supérieur à 10 ampères/mètre carré, à des potentiels de l'ordre de - 900 mV/ECS et au moins une anode d'un second type pour lequel le débit de courant est inférieur à 6 ampères/mètre carré, à des potentiels de l'ordre de - 900 mV/ECS, les valeurs absolues du potentiel de dissolution en charge des anodes du premier et du second type étant supérieures à la valeur absolue du potentiel de la structure protégée. Un tel dispositif peut assurer la protection d'une structure métallique en mer pendant plusieurs dizaines d'années.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7627443A FR2364274A1 (fr) | 1976-09-13 | 1976-09-13 | Protection cathodique d'une structure en mer par anodes sacrificielles |
IE1879/77A IE45682B1 (en) | 1976-09-13 | 1977-09-12 | Cathodic protection of structures |
CA286,557A CA1074255A (fr) | 1976-09-13 | 1977-09-12 | Protection cathodique d'une structure en mer par anodes sacrificielles |
GB37909/77A GB1531679A (en) | 1976-09-13 | 1977-09-12 | Apparatus for cathodic protection of a metal structure in the sea |
DE19772741015 DE2741015A1 (de) | 1976-09-13 | 1977-09-12 | Kathodenschutzvorrichtung fuer eine im meer installierte konstruktion mittels selbstverbrauchender anoden |
JP11042877A JPS5362746A (en) | 1976-09-13 | 1977-09-12 | Anode anticorrosive system of underwater metallic structure |
BR7706074A BR7706074A (pt) | 1976-09-13 | 1977-09-12 | Dispositivo para protecao catodica de uma estrutura metalica no mar por meio de anodos sacrificaveis |
NL7710005A NL7710005A (nl) | 1976-09-13 | 1977-09-12 | Inrichting voor de kathodische bescherming van een konstruktie op zee door verbruikbare anoden. |
US05/832,472 US4173523A (en) | 1976-09-13 | 1977-09-12 | Cathodic protection of a structure in the sea by sacrificial anodes |
NO773137A NO773137L (no) | 1976-09-13 | 1977-09-12 | Katodisk beskyttelse av en konstruksjon i sjoeen ved hjelp av offeranoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7627443A FR2364274A1 (fr) | 1976-09-13 | 1976-09-13 | Protection cathodique d'une structure en mer par anodes sacrificielles |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2364274A1 true FR2364274A1 (fr) | 1978-04-07 |
FR2364274B1 FR2364274B1 (fr) | 1980-09-12 |
Family
ID=9177610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7627443A Granted FR2364274A1 (fr) | 1976-09-13 | 1976-09-13 | Protection cathodique d'une structure en mer par anodes sacrificielles |
Country Status (10)
Country | Link |
---|---|
US (1) | US4173523A (fr) |
JP (1) | JPS5362746A (fr) |
BR (1) | BR7706074A (fr) |
CA (1) | CA1074255A (fr) |
DE (1) | DE2741015A1 (fr) |
FR (1) | FR2364274A1 (fr) |
GB (1) | GB1531679A (fr) |
IE (1) | IE45682B1 (fr) |
NL (1) | NL7710005A (fr) |
NO (1) | NO773137L (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1272001B (it) * | 1993-03-10 | 1997-06-10 | Agip Spa | Anodo sacrifiziale perfezionato per la protezione anticorrosiva di strutture offshore e procedimento per la sua realizzazione. |
US7147768B2 (en) * | 2002-08-15 | 2006-12-12 | Alcan International Limited | Electrochemical scale inhibition |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2490978A (en) * | 1944-03-20 | 1949-12-13 | Mcgraw Electric Co | Corrosion prevention |
US2571062A (en) * | 1949-06-15 | 1951-10-09 | Dow Chemical Co | Sacrificial anode system for protecting metals in sea water |
NL135189C (fr) * | 1964-07-23 | |||
US3537963A (en) * | 1969-04-10 | 1970-11-03 | Dow Chemical Co | Cathodic protection method |
US3953311A (en) * | 1972-10-17 | 1976-04-27 | A. O. Smith Corporation | Cathodic protection system |
-
1976
- 1976-09-13 FR FR7627443A patent/FR2364274A1/fr active Granted
-
1977
- 1977-09-12 BR BR7706074A patent/BR7706074A/pt unknown
- 1977-09-12 GB GB37909/77A patent/GB1531679A/en not_active Expired
- 1977-09-12 NO NO773137A patent/NO773137L/no unknown
- 1977-09-12 US US05/832,472 patent/US4173523A/en not_active Expired - Lifetime
- 1977-09-12 DE DE19772741015 patent/DE2741015A1/de not_active Withdrawn
- 1977-09-12 IE IE1879/77A patent/IE45682B1/en unknown
- 1977-09-12 JP JP11042877A patent/JPS5362746A/ja active Granted
- 1977-09-12 NL NL7710005A patent/NL7710005A/xx not_active Application Discontinuation
- 1977-09-12 CA CA286,557A patent/CA1074255A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2741015A1 (de) | 1978-03-16 |
FR2364274B1 (fr) | 1980-09-12 |
IE45682L (en) | 1979-03-12 |
NO773137L (no) | 1978-03-14 |
IE45682B1 (en) | 1982-10-20 |
CA1074255A (fr) | 1980-03-25 |
JPS5754552B2 (fr) | 1982-11-18 |
BR7706074A (pt) | 1978-06-06 |
JPS5362746A (en) | 1978-06-05 |
GB1531679A (en) | 1978-11-08 |
NL7710005A (nl) | 1978-03-15 |
US4173523A (en) | 1979-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2903405A (en) | Corrosion prevention system | |
FR2360687A1 (fr) | Electrode et cellule d'electrolyse monopolaire comportant cette electrode | |
FR2364274A1 (fr) | Protection cathodique d'une structure en mer par anodes sacrificielles | |
Ogura et al. | Cathodic dissolution of the passive film on iron—I. Kinetics and mechanism | |
Diggle et al. | Effect of anodic oxide films on the polarization characteristics of Al | |
US3674662A (en) | Cathodic protection of closely spaced oil well casings | |
GB876127A (en) | Anodic treatment of zinc and zinc-base alloys | |
NO172352C (no) | Fremgangsmaate og innretning for opprettholdelse av en katodisk korrosjonsbeskyttelse av metalliske flater | |
Watanabe et al. | Effect of iron content on the breakdown potential for pitting of titanium in NaCl solutions | |
Schwalm et al. | Stray current--the major cause of underground plant corrosion | |
DK38981A (da) | Metode til forbinding af reaktionssintrede emner af siliciumkkarbid med emner af jern eller metal samt ionisationselektrode fremstillet ifoelge motoden | |
US3635813A (en) | Anode system for cathodic protection of stretched chain | |
Gouda et al. | Corrosion inhibition of steel by hydrazine | |
US3376209A (en) | Anode formed of lead base and duriron | |
FR2356741A1 (fr) | Procede pour l'affaiblissement de l'interference de structures metalliques ainsi que montage et capteurs pour la mise en oeuvre de ce procede | |
GB1232334A (fr) | ||
GB1453254A (en) | Apparatus for continuous electro-coating | |
RU1067U1 (ru) | Устройство катодной защиты от атмосферной коррозии | |
Hawkridge et al. | Polarographic maxima of the first kind: characteristics in absence of resistance-controlled currents | |
Gnanasekaran et al. | Stress measurements in electrodeposited lead dioxide | |
ES8302801A1 (es) | "procedimiento para el refinado electrolitico bipolar de plomo". | |
Gaur et al. | Voltammetric behaviour of lead chloride in molten magnesium chloride-potassium chloride eutectic | |
Ross et al. | The nature of the contact in cathodic protection by means of dispersed anodes | |
BE904188A (fr) | Perfectionnement aux installations a cellules verticales pour l'electrodeposition continue de metaux a une densite de courant elevee. | |
DK0508537T3 (da) | Elektrisk leder, framgangsmåde til fremstilling af en elektrisk leder samt elektrode til elektrolysecelle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |