DE1033295B - Soft iron protective strips or wires for electrical cables - Google Patents
Soft iron protective strips or wires for electrical cablesInfo
- Publication number
- DE1033295B DE1033295B DER21547A DER0021547A DE1033295B DE 1033295 B DE1033295 B DE 1033295B DE R21547 A DER21547 A DE R21547A DE R0021547 A DER0021547 A DE R0021547A DE 1033295 B DE1033295 B DE 1033295B
- Authority
- DE
- Germany
- Prior art keywords
- iron
- wires
- soft iron
- soft
- electrical cables
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/12—Aluminium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Description
Schutzbänder oder -drähte aus weichem Eisen für elektrische Kabel In der Luft, in der Erde oder im Wasser zu verlegende elektrische Kabel werden zum Schutz gegen elektromagnetische Einflüsse gewöhnlich mit Eisenbändern und Eisendrähten umwickelt, die durch Verbleien gegen Korrosion geschützt sind. Es ist auch bekannt, den Bleimantel durch Aluminiumband oder -draht zu ersetzen, weil Aluminium gegenüber Blei einen wesentlich geringeren spezifischen Widerstand aufweist. Schließlich ist es bekannt, das Aluminium auf Bandeisen oder Draht in flüssigem Zustand aufzubringen.Soft iron protective tapes or wires for electrical cables Electrical cables to be laid in the air, in the ground or in water are used for the Protection against electromagnetic influences usually with iron bands and iron wires wrapped, which are protected against corrosion by lead. It is also known replace the lead sheath with aluminum tape or wire, because aluminum is opposite Lead has a much lower specific resistance. Finally is it is known to apply the aluminum to band iron or wire in a liquid state.
Die Erfindung beruht auf der Erkenntnis, daß bei flüssiger Aluminierung von Bandeisen oder Eisendraht die magnetischen Eigenschaften des weichen Eisens gewahrt bleiben und gleichzeitig ein guter Korrosionsschutz erreicht wird, der einen geringeren spezifischen Widerstand besitzt als Blei. Demgemäß besteht die Erfindung in der Anwendung dies an sich bekannten Flüssig- oder Tauchaluminierens auf Band oder Draht aus weichem Eisen zum Zweck des Schutzes elektrischer Kabel. Diese Maßnahme ermöglicht ein langzeitiges magnetisches Weichglühen .der Bänder und Drähte bei etwa 800° C unter Vermeidung der bisher bekannten Schwierigkeiten des Backens der weichgeglühten Drähte und Bänder.The invention is based on the knowledge that with liquid aluminizing the magnetic properties of soft iron from band iron or iron wire are preserved and at the same time a good corrosion protection is achieved, the one has a lower specific resistance than lead. Accordingly, the invention exists in the application of this known liquid or dip aluminizing on tape or soft iron wire for the purpose of protecting electrical cables. This measure enables long-term magnetic soft annealing of the strips and wires about 800 ° C while avoiding the previously known difficulties of baking the annealed wires and strips.
Gegenüber der Umspulung und Bewehrung der Eisenbänder und Eisendrähte mit Aluminiumband oder -draht sowie der Verwendung aluminiumplattierten Bandes oder Drahtes hat dieAnwendung der flüssigen Aluminierung den Vorteil größerer Haftfähigkeit des Aluminiums. Es kann in sehr dünnen Schichten aufgetragen werden, womit eine größere Schmiegsamkeit des Kabels erzielt wird. Zweckmäßig wird das magnetische Weichglühen sowie die Behandlung des Eisenbandes oder -drahtes im Zusammenhang mit der Tauchaluminierung in entkohlend:er Atmosphäre durchgeführt, um das Eisenband oder den Eisendraht gegen elektromagnetische Einflüsse zu schützen. Beide Behandlungen unterstützen sich in dieser Richtung gegenseitig.Opposite the winding and reinforcement of the iron bands and iron wires with aluminum tape or wire as well as the use of aluminum-clad tape or For wire, the use of liquid aluminizing has the advantage of greater adhesiveness of aluminum. It can be applied in very thin layers, making a greater flexibility of the cable is achieved. The magnetic one becomes useful Soft annealing as well as the treatment of the iron strip or wire in connection with the dip aluminizing in decarburizing: he carried out to the iron strip atmosphere or to protect the iron wire against electromagnetic influences. Both treatments support each other in this direction.
Eine aus Mischkristallen von Aluminium und Eisen bestehende dünne Zwischenschicht kann als Schutzschicht zwischen dem Eisen und der Aluminiumschicht gebildet werden, um das Haften der Aluminiumschicht auf dem Eisen zu verbessern.A thin one consisting of mixed crystals of aluminum and iron Intermediate layer can act as a protective layer between the iron and the aluminum layer can be formed to improve the adhesion of the aluminum layer to the iron.
Das aus Weicheisen bestehende Band oder der Draht wird einem magnetischen und entkohlenden Weichglühen bei einer Temperatur von etwa. 800° C unterworfen und während dieser Behandlung, oder auch unmittelbar davor wie auch unmittelbar danach, durch Flüssig- oder Tauchaluminierung mit einem Aluminiumüberzug versehen. Dem Aluminiumbad können Legierungszusätze, beispielsweise Silizium, beigefügt werden, um bestimmte Eigenschaften des Überzuges, wie z. B. seine Korrosionsbeständigkeit und die Stärke der Aluminiumschicht, zu verändern. Es empfiehlt sich auch eine Aufrauhung der Oberfläche des Bandes zur Erhöhung der Haftfähigkeit weiterer Schutzschichten.The band or wire made of soft iron becomes a magnetic one and decarburizing soft annealing at a temperature of about. Subject to 800 ° C and during this treatment, or immediately before and immediately after, provided with an aluminum coating by liquid or immersion aluminizing. The aluminum bath Alloy additives, for example silicon, can be added to achieve certain Properties of the coating, such as B. its corrosion resistance and strength the aluminum layer. It is also advisable to roughen the surface of the tape to increase the adhesion of further protective layers.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER21547A DE1033295B (en) | 1957-07-24 | 1957-07-24 | Soft iron protective strips or wires for electrical cables |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER21547A DE1033295B (en) | 1957-07-24 | 1957-07-24 | Soft iron protective strips or wires for electrical cables |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1033295B true DE1033295B (en) | 1958-07-03 |
Family
ID=7400928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER21547A Pending DE1033295B (en) | 1957-07-24 | 1957-07-24 | Soft iron protective strips or wires for electrical cables |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1033295B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599545A1 (en) * | 1986-05-27 | 1987-12-04 | Lacroix Kress Gmbh Co Ohg | Electrical conductor, especially for windings of electromagnet coils |
-
1957
- 1957-07-24 DE DER21547A patent/DE1033295B/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599545A1 (en) * | 1986-05-27 | 1987-12-04 | Lacroix Kress Gmbh Co Ohg | Electrical conductor, especially for windings of electromagnet coils |
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