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SE9002368L - DEVICE FOR Cathode protection of a liquid electrolyte, seawater entry, submerged metal surface, entryway propeller shaft seal on a vessel - Google Patents

DEVICE FOR Cathode protection of a liquid electrolyte, seawater entry, submerged metal surface, entryway propeller shaft seal on a vessel

Info

Publication number
SE9002368L
SE9002368L SE9002368A SE9002368A SE9002368L SE 9002368 L SE9002368 L SE 9002368L SE 9002368 A SE9002368 A SE 9002368A SE 9002368 A SE9002368 A SE 9002368A SE 9002368 L SE9002368 L SE 9002368L
Authority
SE
Sweden
Prior art keywords
sacrificial anode
electrolyte
housing
propeller shaft
liquid electrolyte
Prior art date
Application number
SE9002368A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9002368D0 (en
Inventor
G Pietsch
Original Assignee
Blohm Voss Ag
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 Blohm Voss Ag filed Critical Blohm Voss Ag
Publication of SE9002368D0 publication Critical patent/SE9002368D0/en
Publication of SE9002368L publication Critical patent/SE9002368L/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
    • 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

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)
  • Sealing Devices (AREA)

Abstract

An apparatus for the cathodic corrosion protection of metal surfaces immersed in a liquid electrolyte, preferably seawater, the metal surfaces preferably being provided at the stern tube seal of a ship, by means of at least one sacrificial anode 7 which is secured to a component which is moved relatively fast relative to the electrolyte, preferably at the propeller shaft 1 of a ship, is characterised by the use of a housing 8 which surrounds the sacrificial anode and is preferably electrically insulated relative thereto, with the wall of the housing being spaced from the sacrificial anode at least in the region of one of the side surfaces thereof and being provided there with apertures for the passage of the electrolyte, with the spacing of the passage openings from the sacrificial anode and/or the clear area of the passage openings being so selected that during the operational movement, preferably rotation, of the housing together with the sacrificial anode, the speed of flow of the electrolyte in the interior of the housing does not amount to more than 0.3 m/sec. <IMAGE>
SE9002368A 1989-07-21 1990-07-05 DEVICE FOR Cathode protection of a liquid electrolyte, seawater entry, submerged metal surface, entryway propeller shaft seal on a vessel SE9002368L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3924158A DE3924158A1 (en) 1989-07-21 1989-07-21 DEVICE FOR CATHODICAL CORROSION PROTECTION OF IN A LIQUID ELECTROLYTE, PREFERABLY SEAWATER, SUBMERSIBLE METAL AREAS, PREFERABLY ON THE STEVEN PIPE SEAL OF A SHIP

Publications (2)

Publication Number Publication Date
SE9002368D0 SE9002368D0 (en) 1990-07-05
SE9002368L true SE9002368L (en) 1991-01-22

Family

ID=6385540

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002368A SE9002368L (en) 1989-07-21 1990-07-05 DEVICE FOR Cathode protection of a liquid electrolyte, seawater entry, submerged metal surface, entryway propeller shaft seal on a vessel

Country Status (7)

Country Link
JP (1) JPH03104890A (en)
KR (1) KR910003153A (en)
CN (1) CN1049533A (en)
DE (1) DE3924158A1 (en)
GB (1) GB2233981B (en)
NL (1) NL9001663A (en)
SE (1) SE9002368L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100460044B1 (en) * 2002-09-09 2004-12-04 윌로펌프 주식회사 Water supplying pump for seawater
CN101905913A (en) * 2010-07-29 2010-12-08 中国船舶重工集团公司第七二五研究所 Seawater antifouling system and method based on propeller shore-based electrolysis
DE102013213853A1 (en) * 2013-07-16 2015-01-22 Aktiebolaget Skf Corrosion protected bearing component and bearing arrangement
US12291315B2 (en) 2019-10-18 2025-05-06 Volvo Penta Corporation Cathodic protection and anti-fouling arrangement and method
CN114131126A (en) * 2021-11-14 2022-03-04 中国航发沈阳黎明航空发动机有限责任公司 Flow field protection device for large-allowance electrolytic machining

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146448A (en) * 1974-07-31 1979-03-27 Kobe Steel, Limited Protection of a stern tube shaft liner
US4133737A (en) * 1977-06-27 1979-01-09 Exxon Research & Engineering Co. Shielded anodes

Also Published As

Publication number Publication date
GB2233981B (en) 1993-09-01
NL9001663A (en) 1991-02-18
CN1049533A (en) 1991-02-27
GB2233981A (en) 1991-01-23
JPH03104890A (en) 1991-05-01
KR910003153A (en) 1991-02-27
DE3924158A1 (en) 1991-01-24
GB9015716D0 (en) 1990-09-05
SE9002368D0 (en) 1990-07-05

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