WO2000026426A1 - Alliage a base de zinc, son utilisation comme anode soluble, anode soluble et procede de protection cathodique de constructions menacees par la corrosion dans un environnement agressif - Google Patents

Alliage a base de zinc, son utilisation comme anode soluble, anode soluble et procede de protection cathodique de constructions menacees par la corrosion dans un environnement agressif Download PDF

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Publication number
WO2000026426A1
WO2000026426A1 PCT/DK1999/000586 DK9900586W WO0026426A1 WO 2000026426 A1 WO2000026426 A1 WO 2000026426A1 DK 9900586 W DK9900586 W DK 9900586W WO 0026426 A1 WO0026426 A1 WO 0026426A1
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WO
WIPO (PCT)
Prior art keywords
per cent
weight
zinc
max
sacrificial anode
Prior art date
Application number
PCT/DK1999/000586
Other languages
English (en)
Inventor
Jan Søren Brøgger ARENTOFT
Per Schantz
Original Assignee
Bac Corrosion Control A/S
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 Bac Corrosion Control A/S filed Critical Bac Corrosion Control A/S
Priority to AU63269/99A priority Critical patent/AU6326999A/en
Publication of WO2000026426A1 publication Critical patent/WO2000026426A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • C22C18/02—Alloys based on zinc with copper as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • C22C18/04—Alloys based on zinc with aluminium as the next major constituent
    • 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

Definitions

  • This invention relates to a new zinc-based alloy; the said alloy for use as the active part of a sacrificial anode; the use of the alloy as the active part of such an anode; a sacrificial anode the active part of which is an alloy according to the invention; as well as a method for cathodic protection of corrosion-threatened constructions in ag- gressive environment.
  • the majority of the sacrificial anodes presently being produced and used for the cathodic protection of constructions in aggressive environment comprises zinc- based or aluminum-based alloys as the active part.
  • the presently used zinc-based alloys meet the requirements of US Military Standard (U.S.-Mill-A-1800 1 K) which ir> ter alia prescribes the addition of cadmium;
  • U.S.-Mill-A-1800 1 K comprises the following data:
  • this invention relates to a zinc-based alloy which is characterized in that it consists substantially of 0J - 1.0 per cent by weight of aluminum,
  • An alloy according to the invention which is preferred on account of its particularly advantageous potential, capacity and effectivity, cf. the following test results, consists substantially of 0J - 1.0 per cent by weight of aluminum,
  • a preferred indium-free alloy or alloy having a very low indium content is according to the invention characterized in that it consists substantially of 0.1 - 0.2 per cent by weight of aluminum, 0.05 - 0J 0 per cent by weight of tin, 0 - 50 ppm of indium, max. 0.0030 per cent by weight of lead, iron and/or copper, and max.
  • 2,982,705 there is also known a zinc alloy for cathodic protection contai- ning at least one element selected from indium, thallium, cadmium and tin in an amount of 0.01 - 3%; this alloy may consist of zinc and indium, only, or of zinc and tin, only.
  • This invention also relates to a zinc-based alloy as defined above for use as the active part of a sacrificial anode, and the invention also relates to the use of an alloy of the present type as the active part of a sacrificial anode.
  • the invention relates to a sacrificial anode the active part of which is a zinc-based alloy of the present type, as well as a method for the cathodic protection of corrosion-threatened constructions in aggressive environment, in particular offshore constructions, hulls, tanks, cooling containers, pipes and the like, and this method is characterized in that the constructions are protected by using a sacrificial anode according to the invention.
  • the invention is further illustrated by means of the following test results obtained with alloys according to the invention, the tests having been carried out according to the directions in Det Norske Veritas' Offshore-standard RP.B.401; the potentials have been measured vs. Cu/CuSO 4 . Zn-based alloys (Zn-purity 99.995%)
  • test alloys according to the invention substantially meet the requirements according to U.S.-MHI-A-1800 K 1 and for a substantial part show even more advantageous values.

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

L'invention concerne un alliage à base de zinc exempt de cadmium servant d'anode soluble constitué essentiellement de 0,1 à 1,0 % en poids d'aluminium, de 0,005 à 1,0 % en poids d'étain, de 0 à 0,5 % en poids d'indium, de 0,003 % en poids max. de plomb, de fer et/ou de cuivre et de 0,005 % en poids max. de plomb, de fer et/ou de cuivre ainsi que d'autres métaux, notamment le nickel, le thallium et le cadmium et du zinc d'équilibrage dont la pureté atteint environ 99,995 %. L'alliage fait preuve de propriétés avantageuses en termes de potentiel, capacité et efficacité et peut être utilisé dans la protection cathodique des constructions menacées par la corrosion dans un environnement agressif, notamment les constructions marines, les coques, les réservoirs, les conteneurs frigorifiques, les conduites et autres constructions analogues.
PCT/DK1999/000586 1998-11-03 1999-10-28 Alliage a base de zinc, son utilisation comme anode soluble, anode soluble et procede de protection cathodique de constructions menacees par la corrosion dans un environnement agressif WO2000026426A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63269/99A AU6326999A (en) 1998-11-03 1999-10-28 Zinc-based alloy, its use as a sacrificial anode, a sacrificial anode, and a method for cathodic protection of corrosion-threatened constructions in aggressive environment

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA199801415 1998-11-03
DK199801415A DK173514B1 (da) 1998-11-03 1998-11-03 Zinkbaseret legering, dens anvendelse som offeranode, offeranode samt fremgangsmåde til katodisk beskyttelse af korrosionst

Publications (1)

Publication Number Publication Date
WO2000026426A1 true WO2000026426A1 (fr) 2000-05-11

Family

ID=8104586

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1999/000586 WO2000026426A1 (fr) 1998-11-03 1999-10-28 Alliage a base de zinc, son utilisation comme anode soluble, anode soluble et procede de protection cathodique de constructions menacees par la corrosion dans un environnement agressif

Country Status (3)

Country Link
AU (1) AU6326999A (fr)
DK (1) DK173514B1 (fr)
WO (1) WO2000026426A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009118693A1 (fr) * 2008-03-28 2009-10-01 Bac Corrosion Control A/S Alliage à base de zinc sans cadmium, son utilisation en tant qu’anode réactive, anode réactive, et procédé pour la protection cathodique de constructions présentant un risque de corrosion dans un environnement agressif
CN101928944A (zh) * 2010-03-12 2010-12-29 邹积强 防止发生应力腐蚀开裂的合金化牺牲阳极膜及其制法
CN103243238A (zh) * 2013-05-23 2013-08-14 南通鑫祥锌业有限公司 一种用于合金锌带的锌复合材料
EP3647465A1 (fr) 2018-11-05 2020-05-06 BAC Corrosion Control A/S Alliage d'anode sacrificielle à base de zinc, utilisation d'un alliage à base de zinc et anode sacrificielle
CN113046755A (zh) * 2021-03-10 2021-06-29 青岛双瑞海洋环境工程股份有限公司 一种耐高温锌合金牺牲阳极及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1730319A1 (fr) * 2004-03-12 2006-12-13 ZAB Danmark A/S Alliage metallique et utilisation d'alliages metalliques comme poids

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4967820A (fr) * 1972-11-06 1974-07-01
DE2411608A1 (de) * 1973-03-19 1974-10-31 Metallurgie Hoboken Zink-indium-legierung zum kathodischen schuetzen der innenwaende von tanks gegen korrosion und verfahren zu ihrer herstellung
JPS53100125A (en) * 1977-02-14 1978-09-01 Nippon Boshoku Kogyo Kk Zinc alloy for galvanic anode
JPH02247011A (ja) * 1989-03-17 1990-10-02 Hitachi Cable Ltd 耐食性亜鉛合金被覆鋼線の製造方法
RU1788064C (ru) * 1991-04-22 1993-01-15 Государственный научно-исследовательский, проектный и конструкторский институт сплавов и обработки цветных металлов "Гипроцветметобработка" Сплав на основе цинка дл анодов и способ его обработки
JPH06207260A (ja) * 1993-01-08 1994-07-26 Furukawa Electric Co Ltd:The 複合アルミニウム条およびその製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4967820A (fr) * 1972-11-06 1974-07-01
DE2411608A1 (de) * 1973-03-19 1974-10-31 Metallurgie Hoboken Zink-indium-legierung zum kathodischen schuetzen der innenwaende von tanks gegen korrosion und verfahren zu ihrer herstellung
JPS53100125A (en) * 1977-02-14 1978-09-01 Nippon Boshoku Kogyo Kk Zinc alloy for galvanic anode
JPH02247011A (ja) * 1989-03-17 1990-10-02 Hitachi Cable Ltd 耐食性亜鉛合金被覆鋼線の製造方法
RU1788064C (ru) * 1991-04-22 1993-01-15 Государственный научно-исследовательский, проектный и конструкторский институт сплавов и обработки цветных металлов "Гипроцветметобработка" Сплав на основе цинка дл анодов и способ его обработки
JPH06207260A (ja) * 1993-01-08 1994-07-26 Furukawa Electric Co Ltd:The 複合アルミニウム条およびその製造方法

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 197509, Derwent World Patents Index; Class M, Page 14-G, AN 1975-14947W [09], XP002129987 *
DATABASE WPI Section Ch Week 197841, Derwent World Patents Index; Class M, Page 14, AN 1978-73328A [41], XP002129988 *
DATABASE WPI Section Ch Week 9408, Derwent World Patents Index; Class M, Page 26, AN 1994-063195 [08], XP002129986 *
H.J. JOHNEN: "Zink-Taschenbuch", 1981, METALL-VERLAG GMBH, DÜSSELDORF,DE, XP002129985 *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 572 (M - 1061) 19 December 1990 (1990-12-19) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 568 (C - 1266) 31 October 1994 (1994-10-31) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009118693A1 (fr) * 2008-03-28 2009-10-01 Bac Corrosion Control A/S Alliage à base de zinc sans cadmium, son utilisation en tant qu’anode réactive, anode réactive, et procédé pour la protection cathodique de constructions présentant un risque de corrosion dans un environnement agressif
CN101928944A (zh) * 2010-03-12 2010-12-29 邹积强 防止发生应力腐蚀开裂的合金化牺牲阳极膜及其制法
CN103243238A (zh) * 2013-05-23 2013-08-14 南通鑫祥锌业有限公司 一种用于合金锌带的锌复合材料
EP3647465A1 (fr) 2018-11-05 2020-05-06 BAC Corrosion Control A/S Alliage d'anode sacrificielle à base de zinc, utilisation d'un alliage à base de zinc et anode sacrificielle
CN113046755A (zh) * 2021-03-10 2021-06-29 青岛双瑞海洋环境工程股份有限公司 一种耐高温锌合金牺牲阳极及其制备方法

Also Published As

Publication number Publication date
DK173514B1 (da) 2001-01-22
AU6326999A (en) 2000-05-22
DK199801415A (da) 2000-05-04

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