DE942690C - Use of heat-treated iron-silicon and iron-aluminum alloys for cable armouring - Google Patents

Use of heat-treated iron-silicon and iron-aluminum alloys for cable armouring

Info

Publication number
DE942690C
DE942690C DEK2915D DEK0002915D DE942690C DE 942690 C DE942690 C DE 942690C DE K2915 D DEK2915 D DE K2915D DE K0002915 D DEK0002915 D DE K0002915D DE 942690 C DE942690 C DE 942690C
Authority
DE
Germany
Prior art keywords
iron
alloys
heat
silicon
treated
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
Application number
DEK2915D
Other languages
German (de)
Inventor
Dr Phil Hermann Fahlenbrach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
Original Assignee
Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
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
Priority claimed from DEK2790D external-priority patent/DE932618C/en
Application filed by Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie filed Critical Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
Priority to DEK2915D priority Critical patent/DE942690C/en
Application granted granted Critical
Publication of DE942690C publication Critical patent/DE942690C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Soft Magnetic Materials (AREA)

Description

Verwendung wärmebehandelter Eisen-Silizium-und Eisen-Aluminium-Legierungen für Kabelbewehrungen Es ist bekannt, kritisch verformte und geglühte Eisen-Silizium-Legierungen mit bis zu 6 % Silizium und weniger als 0,o6 °/o Kohlenstoff als Bandarmierung für Schwachstromkabel zu verwenden. Ferner ist es bekannt, bei Eisen-Silizium-Legierungen die Rekristallisation nach kritischer Verformung durch eine Glühurig bei 65o bis 90o° C zu bewirken.Use of heat-treated iron-silicon and iron-aluminum alloys for cable armor It is known to be critically deformed and annealed iron-silicon alloys with up to 6% silicon and less than 0.06% carbon as tape reinforcement for Use low-voltage cables. It is also known for iron-silicon alloys the recrystallization after critical deformation by an annealing furnace at 65o to 90o ° C to cause.

Den Gegenstand des Hauptpatents bildet die Verwendung von magnetischen Fe-Si-Legierungen, die nach ihrer Verarbeitung einer Glühurig bei 350 bis 80o° C unterworfen worden sind, als Werkstoff für Gegenstände, von denen hohe Anfangspermeabilität und gegebenenfalls geringe magnetische Nachwirkung verlangt werden. Die Glühurig bei 35o bis 80o° C soll zum mindesten in ihrem letzten Teil in sauerstoffhaltiger Atmosphäre, z. B. in Luft, erfolgen. Dieser Glühurig kann eine Glühurig bei mehr als 100o° C, vorzugsweise im Schutzgas, z. B. Wasserstoff, vorangehen.The subject of the main patent is the use of magnetic Fe-Si alloys, which have been subjected to annealing at 350 to 80 ° C after processing, as a material for objects of which high initial permeability and possibly low magnetic aftereffects are required. The glowing furnace at 35o to 80o ° C should at least in its last part in an oxygen-containing atmosphere, z. B. in air. This glow furnace can be a glow furnace at more than 100o ° C, preferably in a protective gas, e.g. B. hydrogen, go ahead.

Es hat sich nun gezeigt, daß die so behandelten Fe-Si-Legierungen wegen ihrer hohen Permeabilität als Werkstoff für Kabelbewehrungen besonders geeignet sind. Die Verwendung der Legierungen für diesen Zweck erfolgt, nachdem der band- oder drahtförmige Werkstoff vor dem Aufwickeln auf die -Kabelseele zunächst oberhalb iooo° C im Schutzgas geglüht, danach in an sich bekannter Weise vorgeformt und dann zwischen 5oo und 8oo° C in sauerstoffhaltiger Atmosphäre erneut geglüht wurde, um erst dann aufgewickelt zu werden. Dieses Verfahren hat den Vorteil, daß das Aufwickeln die Permeabilität nicht mehr nennenswert beeinträchtigt, so daß praktisch die gleichen hohen Permeabilitäten wie nach dem Hauptpatent erhalten werden.It has now been shown that the Fe-Si alloys treated in this way particularly suitable as a material for cable armouring because of its high permeability are. The alloys are used for this purpose after the band- or wire-like material before winding the cable core initially annealed above 100 ° C in protective gas, then in a manner known per se preformed and then again between 500 and 800 ° C in an oxygen-containing atmosphere was annealed, only to be wound up afterwards. This procedure has the advantage that the winding the permeability no longer significantly impaired, so that practically the same high permeabilities can be obtained as in the main patent.

Die vorhergehende Glühung bei Temperaturen oberhalb iooo° C erfolgt zweckmäßig in gereinigtem Wasserstoff mit geringenFeuchtigkeitsgehalten und geringen anderen sauerstoffhailtigen Verunreinigungen. Diese Glühung wird vorteilhaft im Durchlaufofen durchgeführt.The previous annealing takes place at temperatures above 100 ° C expediently in purified hydrogen with low and low moisture contents other oxygen-containing impurities. This annealing is advantageous in Continuous furnace carried out.

Es hat sich ergeben, daß in den erfindungsgemäß verwendeten Fe-Si-Legierungen das Silizium auch ganz oder teilweise durch Aluminium ersetzt werden kann. Der Aluminiumgehalt kann bis zu io °/o betragen.It has been found that in the Fe-Si alloys used according to the invention the silicon can also be completely or partially replaced by aluminum. The aluminum content can be up to 10 ° / o.

Claims (3)

PATENTANSPRÜCHE: z. Die Verwendung von magnetischen Fe-Si-Legierungen, die nach einer Glühung bei Temperaturen oberhalb iooo° C, vorzugsweise im Schutzgas; z. B. Wasserstoff, einer Glühung bei Temperaturen von 5oo bis 8oo° C in sauerstoffhaltiger Atmosphäre, z. B. an Luft, unterworfen worden sind nach Patent 932 618, als Werkstoff für Kabelbewehrungen. PATENT CLAIMS: e.g. The use of magnetic Fe-Si alloys, after annealing at temperatures above 100 ° C., preferably in a protective gas; z. B. hydrogen, an annealing at temperatures of 500 to 800 ° C in oxygen-containing Atmosphere, e.g. B. in air, have been subjected to patent 932 618, as a material for cable armouring. 2. Die Verwendung der nach Anspruch i wärmebehandelten Legierungen mit der Maßgabe,- daß der Siliziumgehalt ganz oder teilweise durch einen bis zu io o/o betragenden Aluminiumgehalt ersetzt ist, für den Zweck nach Anspruch i. 2. The use of the alloys heat-treated according to claim i with the proviso - that the silicon content is wholly or partially by one up to io o / o amount of aluminum content is replaced, for the purpose according to claim i. 3. Die. Verwendung der nach Anspruch i und 2 wärmebehandelten Legierungen mit der Maßgabe,, daß vor der Glühung bei 5oo bis 8oo° C die droht- oder bandfärniigen Legie rungen vorgeformt werden, für den Zweck nach-Anspruch i. q.. Die Verwendung der nach Anspruch i wärmebehandelten Legierungen mit der Maßgabe, daß die bei Temperaturen oberhalb iooo° C erfolgende Glühung in gereinigtem Wasserstoff mit nur geringem Feuchtigkeitsgehalt vorgenommen wird, für den Zweck nach Anspruch i.3. The. Use of the alloys heat-treated according to claims i and 2 with the proviso that that before annealing at 500 to 800 ° C the threatened or ribbon-colored alloys ments are preformed for the purpose according to claim i. q .. The use of the according to claim i heat-treated alloys with the proviso that those at temperatures above 10000 ° C annealing in purified hydrogen with only a low moisture content is made for the purpose according to claim i.
DEK2915D 1941-07-23 1942-05-06 Use of heat-treated iron-silicon and iron-aluminum alloys for cable armouring Expired DE942690C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK2915D DE942690C (en) 1941-07-23 1942-05-06 Use of heat-treated iron-silicon and iron-aluminum alloys for cable armouring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK2790D DE932618C (en) 1941-07-23 1941-07-23 The use of iron-silicon alloys as a material for magnetically stressed objects
DEK2915D DE942690C (en) 1941-07-23 1942-05-06 Use of heat-treated iron-silicon and iron-aluminum alloys for cable armouring

Publications (1)

Publication Number Publication Date
DE942690C true DE942690C (en) 1956-05-03

Family

ID=7209651

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK2915D Expired DE942690C (en) 1941-07-23 1942-05-06 Use of heat-treated iron-silicon and iron-aluminum alloys for cable armouring

Country Status (1)

Country Link
DE (1) DE942690C (en)

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