GB803864A - Improvements in sacrificial anodes for use in cathode protection systems - Google Patents

Improvements in sacrificial anodes for use in cathode protection systems

Info

Publication number
GB803864A
GB803864A GB1295/56A GB129556A GB803864A GB 803864 A GB803864 A GB 803864A GB 1295/56 A GB1295/56 A GB 1295/56A GB 129556 A GB129556 A GB 129556A GB 803864 A GB803864 A GB 803864A
Authority
GB
United Kingdom
Prior art keywords
anode
cable
cover
perforations
closely
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
GB1295/56A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB803864A publication Critical patent/GB803864A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/481—Treatment of water, waste water, or sewage with magnetic or electric fields using permanent magnets
    • 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
    • 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
    • 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
    • C23F13/18—Means for supporting 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
    • 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

Abstract

803,864. Preventing corrosion. DOW CHEMICAL CO. Jan. 13, 1956 [Feb. 1, 1955], No. 1295/56. Class 123(1) Sacrificial anodes for the cathodic protection of metallic structures are provided with closely-fitting electrically-insulating, liquid impervious coatings provided with perforations of such size, number and distribution that the total current flow to the cathodic structure and especially the flow to the parts thereof adjacent the anode are limited, whereby the anode life is extended and the area protected is increased. In one form, Figs. 1 and 4, the anode assembly 20 consists of a magnesium block 22 having two metal core straps 24 extending therefrom as mounting lugs 24a. The anode is encased in a closely-fitting cover 26, for example, of neoprene or polyvinyl chloride resin which also extends along part of the length of the lugs 24a, the cover being applied by dipping, spraying and painting. The top of the cover has holes 28 therethrough of a number and size to give the required current output from the anode. When the anode is to be used in sea water it may be provided with an anti-fouling coating, e.g. a copper salt of polyacrylic acid. Slowly soluble coatings such as polyacrylic acid or polyvinyl alcohol may also be used to provide a delayed action anode which will come into operation when an immediately operative anode has been consumed. In another form, Fig. 7, the anode assembly consists of an anode 42 in which is embedded the end of a cable 44, the anode having a plastic covering 46 provided with perforations 48. As shown in Fig. 8, the cable 64 extends right through the anode body 66, the perforated plastic covering 62 being extended along the cable to prevent strong local current flow. Specification 803,863 is referred to.
GB1295/56A 1955-02-01 1956-01-13 Improvements in sacrificial anodes for use in cathode protection systems Expired GB803864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US485373A US2855358A (en) 1955-02-01 1955-02-01 Galvanic anode

Publications (1)

Publication Number Publication Date
GB803864A true GB803864A (en) 1958-11-05

Family

ID=23927900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1295/56A Expired GB803864A (en) 1955-02-01 1956-01-13 Improvements in sacrificial anodes for use in cathode protection systems

Country Status (4)

Country Link
US (1) US2855358A (en)
DE (1) DE1258704B (en)
FR (1) FR1146077A (en)
GB (1) GB803864A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012958A (en) * 1958-04-17 1961-12-12 Patrol Valve Co Vitreous lined water tanks with sacrificial anodes
US3022242A (en) * 1959-01-23 1962-02-20 Engelhard Ind Inc Anode for cathodic protection systems
DE1223658B (en) * 1962-05-19 1966-08-25 Siemens Ag Rod-shaped electrode composed of pieces, especially for cathodic protection
US4171254A (en) * 1976-12-30 1979-10-16 Exxon Research & Engineering Co. Shielded anodes
US4175021A (en) * 1978-03-06 1979-11-20 C. E. Equipment Co., Inc. Apparatus for preventing end effect in anodes
US4401540A (en) * 1980-10-29 1983-08-30 C.E. Equipment Co., Inc. Apparatus for reducing end effect in anodes
DE3574769D1 (en) * 1984-03-09 1990-01-18 Czepek & Fentross Gmbh WATER HEATER.
US6214203B1 (en) 1999-12-06 2001-04-10 United States Pipe Foundry Anodic encasement corrosion protection system for pipe and appurtenances, and metallic components thereof
US6331242B1 (en) 1999-12-06 2001-12-18 United States Pipe And Foundry Company, Inc. Anodic encasement corrosion protection system for underground storage tanks, and metallic components thereof
US8012616B2 (en) * 2010-12-15 2011-09-06 The United States Of America As Represented By The Secretary Of The Navy Advanced apparatus for generating electrical power from aquatic sediment/water interfaces
US20210230752A1 (en) * 2020-01-24 2021-07-29 Richard L. Klopp Corrosion Inhibitor Apparatus for Land Vehicles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US915846A (en) * 1907-03-26 1909-03-23 Ernest Friedheim Electrodeposition of metal on hollow articles.
US2435973A (en) * 1941-08-19 1948-02-17 Rusta Restor Corp Method of and means for providing cathodic protection of metallic structures
US2645612A (en) * 1950-06-15 1953-07-14 American Smelting Refining Sacrificial anode
NL74768C (en) * 1950-07-12
FR1081845A (en) * 1953-05-06 1954-12-23 Soc Gen Magnesium Cathodic protection against corrosion

Also Published As

Publication number Publication date
DE1258704B (en) 1968-01-11
US2855358A (en) 1958-10-07
FR1146077A (en) 1957-11-06

Similar Documents

Publication Publication Date Title
GB803864A (en) Improvements in sacrificial anodes for use in cathode protection systems
KR930008997B1 (en) Anti-fouling device for afloaters
US2863819A (en) Insoluble trailing anode for cathodic protection of ships
US3497434A (en) Method for preventing fouling of metal in a marine environment
ES425465A1 (en) Method of corrosion protection
US3012958A (en) Vitreous lined water tanks with sacrificial anodes
Feliu et al. Deterioration of cathodic protection action of zinc-rich paint coatings in atmospheric exposure
EP0102380B1 (en) Oxide anode for use in impressed current cathodic corrosion protection
ES2052328T3 (en) DEVICE AND METHOD FOR REAL-TIME MONITORING OF ACCIDENTAL DAMAGE TO THE PROTECTIVE COATING OF UNDERGROUND OR SUBMERGED METAL STRUCTURES OR PIPES.
US2721172A (en) Consumable metal anodes
US3421990A (en) Sacrificial anode
US3689395A (en) Cathodic protection system and delay-activation anode
GB927232A (en) Improvements in devices for cathodic protection of metallic parts
GB803863A (en) Cathodic protection anode assembly
US2583545A (en) Antifouling marine paint
GB777816A (en) Improvements in or relating to consumable galvanic anodes for use in the cathodic protection of metal structures
GB719427A (en) Improvements in or relating to the cathodic protection of metallic structures against corrosion in sea-water
Frantsevich et al. Preparation of rhodium coatings by potentiostatic electrolysis.
PL89908B1 (en)
US9428301B1 (en) Use of cathodic coatings to cause selective, rapid decay of substrate metals
GB984477A (en) Improvements in or relating to electrodes for the electrolytic protection of metal parts
JPS59182973A (en) Electrolytic protection method
JPH10185079A (en) External surface corrosion-proof method for ductile cast iron pipe
GB880519A (en) Improvements relating to anodes for use in electrolytic protection systems
GB852154A (en) Improvements in or relating to electrodes for use in electrical systems for prevention of corrosion of metal structures