GB859096A - Means for the cathodic protection of ships and the like - Google Patents

Means for the cathodic protection of ships and the like

Info

Publication number
GB859096A
GB859096A GB792258A GB792258A GB859096A GB 859096 A GB859096 A GB 859096A GB 792258 A GB792258 A GB 792258A GB 792258 A GB792258 A GB 792258A GB 859096 A GB859096 A GB 859096A
Authority
GB
United Kingdom
Prior art keywords
anode
current
potential
hull
relay
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
Application number
GB792258A
Inventor
Wilhelm Nowak
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.)
VOLKSWERFT STRALSUND VEB
Original Assignee
VOLKSWERFT STRALSUND VEB
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 VOLKSWERFT STRALSUND VEB filed Critical VOLKSWERFT STRALSUND VEB
Priority to GB792258A priority Critical patent/GB859096A/en
Publication of GB859096A publication Critical patent/GB859096A/en
Expired 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
    • 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

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)

Abstract

859,096. Preventing corrosion. VOLKSWERFT STRALSUND VEB. March 12, 1958, No. 7922/58. Class 123(1) In an impressed current cathodic protection system especially for ships' hulls, the protective current is automatically switched on when the potential between the anode and the hull falls to a preset minimum and is switched off when it rises to a preset maximum. The anode 1 which is of a material such as iron, lead alloy, carbon or platinum and a coppercopper sulphate measuring electrode 2 are mounted in a streamlined body 3 of synthetic plastic material mounted on the hull 4. A voltmeter 6 constantly measures the potential between the electrode 2 and the hull. If the potential falls the voltmeter pointer 5 contacts a terminal 7 and a circuit including a relay 8 and a battery 12 is closed. The relay closes a switch 9 and a flow of protective current is established, an ammeter 10 measuring the current then being applied through the anode 1. As the measured potential rises the pointer 5 eventually contacts a terminal 13 whereupon the relay 8 is again energised to open the switch 9 and stop the current flow. In a modification, a single electrode is used alternately as a measuring electrode and as a protective anode.
GB792258A 1958-03-12 1958-03-12 Means for the cathodic protection of ships and the like Expired GB859096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB792258A GB859096A (en) 1958-03-12 1958-03-12 Means for the cathodic protection of ships and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB792258A GB859096A (en) 1958-03-12 1958-03-12 Means for the cathodic protection of ships and the like

Publications (1)

Publication Number Publication Date
GB859096A true GB859096A (en) 1961-01-18

Family

ID=9842367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB792258A Expired GB859096A (en) 1958-03-12 1958-03-12 Means for the cathodic protection of ships and the like

Country Status (1)

Country Link
GB (1) GB859096A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1521957B1 (en) * 1962-12-22 1969-12-11 Contre La Corrosion S E C C O Device for uninterrupted, operator-free monitoring of the quality of the cathodic protection of systems
GB2132226A (en) * 1982-12-21 1984-07-04 Nippon Light Metal Co Cathodic protection of aluminium articles
EP0472057A2 (en) * 1990-08-08 1992-02-26 VAW Aluminium AG Arrangement and process to obtain a cathodic protection

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1521957B1 (en) * 1962-12-22 1969-12-11 Contre La Corrosion S E C C O Device for uninterrupted, operator-free monitoring of the quality of the cathodic protection of systems
GB2132226A (en) * 1982-12-21 1984-07-04 Nippon Light Metal Co Cathodic protection of aluminium articles
EP0472057A2 (en) * 1990-08-08 1992-02-26 VAW Aluminium AG Arrangement and process to obtain a cathodic protection
EP0472057A3 (en) * 1990-08-08 1992-09-02 Vereinigte Aluminium-Werke Aktiengesellschaft Cathodic protection of aluminium-containing substrate
US5338417A (en) * 1990-08-08 1994-08-16 Vereinigte Aluminium-Werke Aktiengesellschaft Cathodic corrosion protection for an aluminum-containing substrate

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