DE1284631B - Galvanic sacrificial anode made from an Al-Zn-Sn alloy - Google Patents
Galvanic sacrificial anode made from an Al-Zn-Sn alloyInfo
- Publication number
- DE1284631B DE1284631B DEB86415A DEB0086415A DE1284631B DE 1284631 B DE1284631 B DE 1284631B DE B86415 A DEB86415 A DE B86415A DE B0086415 A DEB0086415 A DE B0086415A DE 1284631 B DE1284631 B DE 1284631B
- Authority
- DE
- Germany
- Prior art keywords
- alloy
- sacrificial anode
- tin
- aluminum
- anode made
- 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.)
- Pending
Links
- 229910045601 alloy Inorganic materials 0.000 title claims description 9
- 239000000956 alloy Substances 0.000 title claims description 9
- 229910007610 Zn—Sn Inorganic materials 0.000 title 1
- 229910052718 tin Inorganic materials 0.000 claims description 10
- 239000010936 titanium Substances 0.000 claims description 10
- 229910052719 titanium Inorganic materials 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 5
- 239000011777 magnesium Substances 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- -1 aluminum-zinc-tin Chemical compound 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C23F13/06—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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/46—Alloys based on magnesium or aluminium
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Prevention Of Electric Corrosion (AREA)
Description
Die Erfindung bezieht sich auf eine aus einer Aluminium-Zink-Zinn-Legierung bestehende Opferanode.The invention relates to an aluminum-zinc-tin alloy existing sacrificial anode.
Es sind verschiedene Aluminiumlegierungen vorgeschlagen worden, die als Opferanoden für den kathodischen Schutz von Metallkonstruktionen verwendet werden, die in Berührung mit Seewasser und ähnlichen Elektrolyten sind. Eine dieser Legierungen besteht aus 0,01 bis 2°/a Zinn, 0,5 bis 10°/a Zink, 0 bis 0,015 °/o Kupfer, 0 bis 0,05 °/o Magnesium, 0 bis 0,25 °/o Silizium, 0 bis 0,350/0 Eisen, 0 bis 0,010/, Titan und 0 bis 0,10/, Mangan, Rest Aluminium und übliche Verunreinigungen. Das Zinn ist im Gefüge gleichmäßig verteilt. Als Basis einer derartigen Legierung wird Aluminium eines Reinheitsgrades von 99,8 °/o verwendet, in dem Gallium normalerweise als übliche Verunreinigung in einer Menge bis höchstens 0,020/() vorhanden ist. Die gleichmäßige Verteilung des Zinns im Legierungsgefüge erfolgt durch eine geeignete Wärmebehandlung, damit ein ungleichmäßiger Korrosionsangriff, ein daraus resultierender geringer Wirkungsgrad und eine unerwünschte Veränderung des Anodenpotentials im Gebrauch vermieden werden.Various aluminum alloys have been proposed which used as sacrificial anodes for cathodic protection of metal structures, that are in contact with sea water and similar electrolytes. One of those alloys consists of 0.01 to 2 per cent tin, 0.5 to 10 per cent zinc, 0 to 0.015 per cent copper, 0 to 0.05% magnesium, 0 to 0.25% silicon, 0 to 0.350 / 0 iron, 0 to 0.010 /, Titanium and 0 to 0.10 /, manganese, the balance aluminum and common impurities. That Tin is evenly distributed in the structure. As the basis of such an alloy Aluminum of a purity of 99.8% is used, in which gallium is normally used is present as a common impurity in an amount up to a maximum of 0.020 / (). The tin is evenly distributed in the alloy structure by means of a suitable one Heat treatment, thus an uneven corrosion attack, a resultant low efficiency and an undesirable change in the anode potential in the Avoid use.
In der bekannten, obenerwähnten Zusammensetzung einer Anode ist die bevorzugte obere Grenze für den Titangehalt 0,005 °/o. Es wurde nun überraschend und im Gegensatz zur bekannten Praxis gefunden, daß die bekannte obere Gehaltsgrenze von 0,01 °% für Titan ohne schädliche Wirkung sogar überschritten werden kann und sich daraus außerdem erhebliche Vorteile ergeben. So ist das Gußgefüge bei erhöhtem Titangehalt bis 0,10/0 wesentlich gleichmäßiger, was sowohl für gegossene als auch-stranggepreßte Anoden von Vorteil ist; auch ist der Kontakt der gegossenen Anoden mit dem Stahlkern besser, und außerdem werden die Stellen ohne leitende Verbindung mit dem Stahlkern auf ein Minimum verringert.In the known, above-mentioned composition of an anode is preferred upper limit for the titanium content 0.005%. It was now surprising and found contrary to known practice that the known upper limit of content of 0.01 °% for titanium can even be exceeded without any harmful effect and there are also considerable advantages. So is the cast structure with increased Titanium content up to 0.10 / 0 is much more even, which is true for both cast and extruded Anodes is beneficial; there is also the contact of the cast anodes with the steel core better, and moreover the places become without a conductive connection with the steel core reduced to a minimum.
Erfindungsgemäß wird daher eine Legierung für Opferanoden aus 0,5 bis 10°/o Zink, 0,01 bis 2°/o Zinn, 0 bis 0,015 °/o Kupfer, 0 bis 0,05 °/o Magnesium, 0 bis 0,25 °/o Silizium, 0 bis 0,35 °/o Eisen, 0 bis 0,10/0 Mangan und mehr als 0,01 bis höchstens 0,10/0 Titan, Rest Reinaluminium (Al 99,8) mit den üblichen Verunreinigungen vorgeschlagen, in der das Zinn gleichmäßig im Gefüge verteilt ist. Vorzugsweise liegt der Titangehalt der Legierung im Bereiche von 0,02 bis 0,06 °/o. Eine Aluminiumlegierung gemäß der Erfindung, die sich als besonders geeignet erwiesen hat, hat die folgende Zusammensetzung: 5,5 °/o Zn, 0,10 % Sn, 0,10 % Fe, 0,10 °/o Si, 0,04 °/o Ti, 0,005 °/o Cu, 0,005 °/o Mn, 0,005 % Mg, Rest Aluminium mit den üblichen Verunreinigungen.According to the invention, therefore, an alloy for sacrificial anodes made of 0.5 to 10% zinc, 0.01 to 2% tin, 0 to 0.015% copper, 0 to 0.05% magnesium, 0 to 0, 25% silicon, 0 to 0.35% iron, 0 to 0.10 / 0 manganese and more than 0.01 to at most 0.10 / 0 titanium, the remainder pure aluminum (Al 99.8) with the usual Suggested impurities in which the tin is evenly distributed in the structure. Preferably the titanium content of the alloy is in the range from 0.02 to 0.06%. An aluminum alloy according to the invention which has been found to be particularly suitable has the following composition: 5.5% Zn, 0.10% Sn, 0.10 % Fe, 0.10% Si, 0.04 % Ti, 0.005% Cu, 0.005% Mn, 0.005% Mg, the remainder aluminum with the usual impurities.
Die gleichmäßige Verteilung des Zinns im Gefüge erfolgt durch ein Lösungsglühen während 8 Stunden bei 470°C und ein Abschrecken in Wasser, dem keine Warmauslagerung folgt. Die Legierung besitzt einen Wirkungsgrad von 75. bis 85 °/a und ein Potential von -1,110 V, gemessen gegen eine gesättigte Calomel-Elektrode. Der hier erwähnte Wirkungsgrad der Legierung ist das Verhältnis des bei der Stromerzeugung gelösten Metalls zum Gesamtgewicht des gelösten Metalls.The even distribution of the tin in the structure takes place through a Solution heat treatment for 8 hours at 470 ° C and quenching in water without any Artificial aging follows. The alloy has an efficiency of 75 to 85 ° / a and a potential of -1.110 V, measured against a saturated calomel electrode. The efficiency of the alloy mentioned here is the ratio of the power generation dissolved metal to the total weight of the dissolved metal.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB86415A DE1284631B (en) | 1966-03-30 | 1966-03-30 | Galvanic sacrificial anode made from an Al-Zn-Sn alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB86415A DE1284631B (en) | 1966-03-30 | 1966-03-30 | Galvanic sacrificial anode made from an Al-Zn-Sn alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1284631B true DE1284631B (en) | 1968-12-05 |
Family
ID=6983353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB86415A Pending DE1284631B (en) | 1966-03-30 | 1966-03-30 | Galvanic sacrificial anode made from an Al-Zn-Sn alloy |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1284631B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2483133C2 (en) * | 2010-05-26 | 2013-05-27 | Российская Федерация в лице Министерства промышленности и торговли Российской Федерации (Минпромторг России) | Aluminium-based protective alloy |
-
1966
- 1966-03-30 DE DEB86415A patent/DE1284631B/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2483133C2 (en) * | 2010-05-26 | 2013-05-27 | Российская Федерация в лице Министерства промышленности и торговли Российской Федерации (Минпромторг России) | Aluminium-based protective alloy |
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