FR2359413A1 - Procede d'evaluation du degre de protection cathodique d'une piece metallique enterree, notamment une canalisation, et dispositifs pour la mise en oeuvre de ce procede - Google Patents
Procede d'evaluation du degre de protection cathodique d'une piece metallique enterree, notamment une canalisation, et dispositifs pour la mise en oeuvre de ce procedeInfo
- Publication number
- FR2359413A1 FR2359413A1 FR7622207A FR7622207A FR2359413A1 FR 2359413 A1 FR2359413 A1 FR 2359413A1 FR 7622207 A FR7622207 A FR 7622207A FR 7622207 A FR7622207 A FR 7622207A FR 2359413 A1 FR2359413 A1 FR 2359413A1
- Authority
- FR
- France
- Prior art keywords
- interruption
- potential
- time interval
- evaluation
- short time
- 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
- C23F13/04—Controlling or regulating desired parameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/02—Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ecology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Abstract
Procédé et dispositif de détection du degré de protection cathodique d'une pièce métallique enterrée. On interrompt brusquement la protection cathodique et on effectue à l'intérieur d'un court intervalle de temps suivant le début de cette rupture, une mesure du potentiel continu existant entre le point désiré de la canalisation et la terre environnante. L'invention est applicable à la surveillance des canalisations enterrées.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7622207A FR2359413A1 (fr) | 1976-07-21 | 1976-07-21 | Procede d'evaluation du degre de protection cathodique d'une piece metallique enterree, notamment une canalisation, et dispositifs pour la mise en oeuvre de ce procede |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7622207A FR2359413A1 (fr) | 1976-07-21 | 1976-07-21 | Procede d'evaluation du degre de protection cathodique d'une piece metallique enterree, notamment une canalisation, et dispositifs pour la mise en oeuvre de ce procede |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2359413A1 true FR2359413A1 (fr) | 1978-02-17 |
FR2359413B1 FR2359413B1 (fr) | 1978-12-15 |
Family
ID=9175959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7622207A Granted FR2359413A1 (fr) | 1976-07-21 | 1976-07-21 | Procede d'evaluation du degre de protection cathodique d'une piece metallique enterree, notamment une canalisation, et dispositifs pour la mise en oeuvre de ce procede |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2359413A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0241440A2 (fr) * | 1986-02-19 | 1987-10-14 | BAC Bergsöe Anti Corrosion AB | Système de surveillance de la protection électrochimique de structures métalliques submersibles |
US5144247A (en) * | 1991-02-14 | 1992-09-01 | Westinghouse Electric Corp. | Method and apparatus for reducing IR error in cathodic protection measurements |
US5216370A (en) * | 1991-10-24 | 1993-06-01 | Corrpro Companies, Inc. | Method and system for measuring the polarized potential of a cathodically protected structures substantially IR drop free |
EP0580856A1 (fr) * | 1991-04-15 | 1994-02-02 | N.V. Raychem S.A. | Procede de protection electrique d'objet en metal, electrode de mise a la terre utilisee pour mettre en uvre le procede et composition d'electrode de mise a la terre |
-
1976
- 1976-07-21 FR FR7622207A patent/FR2359413A1/fr active Granted
Non-Patent Citations (1)
Title |
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NEANT * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0241440A2 (fr) * | 1986-02-19 | 1987-10-14 | BAC Bergsöe Anti Corrosion AB | Système de surveillance de la protection électrochimique de structures métalliques submersibles |
EP0241440A3 (en) * | 1986-02-19 | 1989-07-19 | Gosta Lange | Control system for electrochemical protection on submersible metal structures |
US5144247A (en) * | 1991-02-14 | 1992-09-01 | Westinghouse Electric Corp. | Method and apparatus for reducing IR error in cathodic protection measurements |
EP0580856A1 (fr) * | 1991-04-15 | 1994-02-02 | N.V. Raychem S.A. | Procede de protection electrique d'objet en metal, electrode de mise a la terre utilisee pour mettre en uvre le procede et composition d'electrode de mise a la terre |
EP0580856A4 (fr) * | 1991-04-15 | 1994-03-23 | N.V. Raychem S.A. | |
US5216370A (en) * | 1991-10-24 | 1993-06-01 | Corrpro Companies, Inc. | Method and system for measuring the polarized potential of a cathodically protected structures substantially IR drop free |
Also Published As
Publication number | Publication date |
---|---|
FR2359413B1 (fr) | 1978-12-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |