DE1931054U - DEVICE FOR CONNECTING AN ELECTRICAL CONNECTION CABLE TO AN ANODE BODY MADE OF CAST SILICON IRON. - Google Patents
DEVICE FOR CONNECTING AN ELECTRICAL CONNECTION CABLE TO AN ANODE BODY MADE OF CAST SILICON IRON.Info
- Publication number
- DE1931054U DE1931054U DEST15533U DEST015533U DE1931054U DE 1931054 U DE1931054 U DE 1931054U DE ST15533 U DEST15533 U DE ST15533U DE ST015533 U DEST015533 U DE ST015533U DE 1931054 U DE1931054 U DE 1931054U
- Authority
- DE
- Germany
- Prior art keywords
- steel part
- anode body
- anode
- recess
- electrical connection
- 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
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
- C23F13/06—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
- C23F13/20—Conducting electric current to 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
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/16—Electric current supply devices, e.g. bus bars
-
- 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
- C23F2201/00—Type of materials to be protected by cathodic protection
- C23F2201/02—Concrete, e.g. reinforced
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Prevention Of Electric Corrosion (AREA)
Description
Dr.-Ing. Heinrich Stein.
5231 Eiehelhardt/Westerwald,
Nr. 18Dr.-Ing. Heinrich Stein.
5231 Eiehelhardt / Westerwald,
No. 18
Vorrichtung zum Verbinden einer elektrischen
Anschlußleitung mit einem Anodenkörper aus
Siliziumgußeisen Device for connecting an electrical
Connection line with an anode body
Silicon cast iron
Bekanntlich, kann man metallische Konstruktionen, die
sich in elektrisch leitenden Medien "befinden, elektromchemiseh
gegen Korrosion schützen. Das Prinzip
dieses Schutzes besteht darin, einen Gleichstrom
von einer Anode durch den Elektrolyt, z.B. den Erdboden, in Richtung auf die zu schützende Konstruktion
fließen lassen. Dieser aufgedrückte Schutzstrom muß dem an der Oberfläche der metallischen Konstruktion
entstehenden Korrosionsstrom entgegengerichtet und
größer sein, lach dem Kirehhoffsehen Gesetz der
Blektrizitätslehre wird dadurch der Korrosionsstrom kompensiert, so daß jede Korrosion unterbleibt.It is well known that metallic structures that are in electrically conductive media can be protected electrochemically against corrosion. The principle
this protection consists in a direct current
from an anode through the electrolyte, e.g. the soil, to flow towards the structure to be protected. This impressed protective current must be directed in the opposite direction to the corrosion current arising on the surface of the metallic construction
be bigger, laughs at the Kirehhoff's law
According to the theory of lead, the corrosion current is compensated so that any corrosion does not occur.
Der für den Schutz erfoderliche Strom kann durchThe current required for protection can pass through
elektrochemische Zersetzung einen unedleren Metalles oder von einem aus dem Netz gespeisten Gleichrichter dem zu schützenden Objekt zugeführt werden. Bei letzterer Methode, dem Fremdstromschutz, wird der Gleichstrom über Fremdstromanoden der Konstruktion zugeführt. Diese Fremdstromanoden unterliegen auch einem ständigen Abtragungsverlust, der von der Stärke des eingespeisten Gleichstromes und von dem Anodenwerkstoff abhängig ist. So haben beispielsweise nachstehende Werkstoffe etwa folgende Abtragungsverlust: Stahlschrott 10kg/Amp./JahrElectrochemical decomposition of a less noble metal or of a rectifier fed from the mains are fed to the object to be protected. With the latter method, external current protection, the Direct current supplied to the construction via external current anodes. These impressed current anodes are also subject a constant erosion loss, which depends on the strength of the direct current fed in and on the anode material is dependent. For example, the following materials have the following abrasion loss: Steel scrap 10kg / amp. / Year
Graphit o,9 "Graphite o.9 "
15 i° iges Siliziumgußeisen 0,1 " Es ist selbstverständlich, daß man aus wirtschaftlichem Gründen möglichst beständige Anoden wählt.15 i ° iges silicon cast iron 0.1 "It goes without saying that one should choose anodes that are as durable as possible for economic reasons.
In der Praxis haben sich Siliziumanoden bestehend aus etwa:In practice, silicon anodes consisting of about:
14,35 - 15,5 Io Si 0, 8 - 0,85 0 0,6 - 0,8 Mn14.35 - 15.5 Io Si 0.8 - 0.85 0 0.6 - 0.8 Mn
Rest FeRemainder Fe
am besten bewährt. Für die Terwendung in'chlorhaltigen Medien, sowie in Seewasser, werden außerdem noch ca. 3 fo Mo hinzulegiert.best proven. For use in media containing chlorine, as well as in sea water, about 3 fo Mo are also added.
Leider lassen sich diese Werkstoffe sehr schwer bearbeiten weil ihre Eigenschaft eher dem Glas als einem Metall entsprechen,Unfortunately, these materials are very difficult to work with because their properties are more like glass than glass Metal match,
Da Löten, Schwießen und eine mechanische Bearbeitung außer dem Schleif ep nicht möglich ist·, ist naturgemäß das Anbringen von Anschlußleitungen äußerst schwierig. Dabei ist noch zu beachten, daß die Verbindungsstelle zwischen Anode und Kabel anodisch ist und sich beim Eindringen von Feuchtigkeit sogleich auflöst. Bislang hat man an derartigen Werkstoffen das Kabel dadurch befestigt, daß man in den Anodenstab einen Hohlraum eingoß und darin die Anschlußleitung durch Verstemmen oder Vergießen mit einem geeigneten Metall festklemmte. Diese Verbindungsart hat jedoch den Nachteil, daß sich an der Übergangsstelle von dem weichen Material zur Anode durch Metalloxsyde ein Übergangswiderstand bilden kann. Bei der Einspeisung gon 20, 40 oder gar 100 Amp. je Anodenstab macht sich dieser Übergangswiderstand durch Spannungsabfall an der Leitung unangenehm bemerkbar.There is soldering, welding and mechanical processing except the grinding ep is not possible · is natural attaching connecting cables extremely difficult. It should also be noted that the connection point between the anode and the cable is anodic and is immediately removed when moisture penetrates dissolves. Up to now, the cable has been attached to such materials by inserting it into the anode rod Poured a cavity and in it the connection line by caulking or potting with a suitable Metal stuck. However, this type of connection has the disadvantage that at the transition point from the soft material to the anode can form a contact resistance through metal oxide. When feeding gon 20, 40 or even 100 Amp. per anode rod this contact resistance becomes unpleasantly noticeable through a voltage drop on the line.
Am einfachsten und am zweckmäßigsten wä,re nun das Eingießen eines Schraubenbolzens in den Anodenstab und ein Befestigen der Anschlußleitung an den Schraubenbolzen. Da jedoch Stahl und 15 fo iges Siliziumgußeisen sehr verschiedene Ausdehnungskoeffizienten haben ist die Übergangsstelle voller Grußspannungen, die bei einem Stoß, Schlag oder einer Erwärmung die Anode zerspringen lassen wurden. Außerdem vnirde sich um den Schraubenbolzen herum,, soweit wie dessen Abschreckwirkung auf das flüssige Siliziumeisen Einfluß hat, eine Schalenbildung zeigen, die auch zumThe simplest and most practical would now be to pour a screw bolt into the anode rod and attach the connecting cable to the screw bolt. Since, however, have steel and 15 fo sodium Siliziumgußeisen very different coefficients of expansion, the crossing point full greeting voltages were shatter the anode upon impact, shock or heating. In addition, a shell formation would appear around the screw bolt, as far as its deterrent effect has an influence on the liquid silicon iron, which also leads to the
- 4 Zerspringen des Anschlußkopfes beiträgt.- 4 shattering of the connection head contributes.
Erfindungsgemäß wird nun der Wärmeinhalt, d.h. die spez. Wärme χ Masse des einzugießenden Eisenteiles der umfließenden Masse des 15 ί° igen Siliziumgußeisens angepaßt. Dies kann beispielsweise durch Verringerung der Masse durch das Anbringen von Längs- und Querbohrungen im einzugießenden Stahlteil geschehen. Hierdurch wird außerdem noch die Stromübergangsfläche herauf und somit der übergangswiderstand herabgesetzt. Zum Ausgleich der verschiedenen Ausdehnungskoeffitienten der Werkstoffe kann der vom 15 f° igem Siliziumgußeisen umflossene Stahlteil mit einem oder mehreren dünnen Längsschlitzen versehen werden. Da erfahrungsgemäß die einzugießenden Stahlteile in der betrieblichen Atmosphäre leicht rosten, werden dieselben mit einem Überzug aus einem leicht verdampfenden Stoff, z.B. Zink, Zinn oder gar Kunststoff versehen. Beim Eingießen verdampft dieser Überzug und das blanke einzugießende Stahlteil erhält mit der Anode aus 15 i° igem Siliziumgußeisen eine praktisch widerstandslose Verbindung.According to the invention, the heat content, ie the spec. Heat χ mass of the iron part to be poured into the surrounding mass of 15 ί ° silicon cast iron. This can be done, for example, by reducing the mass by making longitudinal and transverse bores in the steel part to be cast. As a result, the current transfer area is also increased and thus the transfer resistance is reduced. To compensate for the different materials of the Ausdehnungskoeffitienten umflossene of 15 ° f Siliziumgußeisen strength steel part can more thin longitudinal slots are provided with one or. Since experience has shown that the steel parts to be cast rust easily in the operational atmosphere, they are provided with a coating made of an easily evaporating substance, for example zinc, tin or even plastic. When pouring in, this coating evaporates and the bare steel part to be poured in receives a practically resistance-free connection with the anode made of 15 ° silicon cast iron.
An dem auf diese Weise eingegossenem Stahlteil wird nun die Anschlußleitung in bekannter und erprobter Yfeise durch Hartlöten angeschlossen. Die "Übergangsstelle von der Anschlußleitung zur Anode, die ga anodisch ist, wird mit Kunstharz oder mit einer sonstigen, geeigneten Vergußmasse gut dichtend vergössen. Damit die -Übergangsstelle von-dem Anoden-On the steel part cast in this way, the connection line is now known and tested Yfeise connected by brazing. The "transition point from the connection line to the anode, which is ga anodic, is made with synthetic resin or with a cast other, suitable potting compound with a good seal. So that the transition point from the anode
körper zur Vergußmasse besser abgedichtet werden
kann und eine größere mechanische Festigkeit aufweist^,
wird im Kopf des Anodenkörpers eine nach
außen sich verjüngende Bohrung eingegossen.body to be sealed better to the potting compound
can and has a greater mechanical strength ^, in the head of the anode body one after
Cast in tapered hole on the outside.
Zur besseren Erläuterung der Erfindung diene eine Zeichnung. Der im Schnitt dargestellte Kopf eines
Anodenkörpers 1 zeigt beispielsweise ein wie oben beschriebenes Stahlteil 2. An diesem Stahlteil 2·
wird das Ansfhlußkabel 3 mittels ^artlötung 4 befestigt.
Damit diese Kabelverbindungsstelle 4 zugentlastet ist, wird das Anschlußkabel 3 mit einer
Schelle 5 in bekannter Weise befestigt. Über die
Anode 1 wird dann noch ein schlauchförmiger Körper 6 gestreift, der die Vergußmasse 7 zum Abdichten der
Verbindungsstelle aufnehmen kann. Es wäre zwar
durchaus möglich an Stelle des schlauchförmigen Körpers
6 die Außenwände der Anode zu-verlängern, aber diese
hindern bei der Befestigung des Kabels und sind
auch zu zerbrechlich.A drawing serves to better explain the invention. The head of an anode body 1 shown in section shows, for example, a steel part 2 as described above. The connecting cable 3 is attached to this steel part 2 by means of soldering 4. So that this cable connection point 4 is relieved of tension, the connection cable 3 is fastened with a clamp 5 in a known manner. About the
Anode 1, a tubular body 6 is then touched, which can accommodate the potting compound 7 to seal the connection point. It would be
It is entirely possible to lengthen the outer walls of the anode instead of the tubular body 6, but these prevent the cable from being fastened and are
too fragile.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST15533U DE1931054U (en) | 1963-01-19 | 1963-01-19 | DEVICE FOR CONNECTING AN ELECTRICAL CONNECTION CABLE TO AN ANODE BODY MADE OF CAST SILICON IRON. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEST15533U DE1931054U (en) | 1963-01-19 | 1963-01-19 | DEVICE FOR CONNECTING AN ELECTRICAL CONNECTION CABLE TO AN ANODE BODY MADE OF CAST SILICON IRON. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1931054U true DE1931054U (en) | 1966-01-13 |
Family
ID=33376385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEST15533U Expired DE1931054U (en) | 1963-01-19 | 1963-01-19 | DEVICE FOR CONNECTING AN ELECTRICAL CONNECTION CABLE TO AN ANODE BODY MADE OF CAST SILICON IRON. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1931054U (en) |
-
1963
- 1963-01-19 DE DEST15533U patent/DE1931054U/en not_active Expired
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