DE942691C - Process to increase the permeability of magnetically soft materials - Google Patents

Process to increase the permeability of magnetically soft materials

Info

Publication number
DE942691C
DE942691C DEK2921D DEK0002921D DE942691C DE 942691 C DE942691 C DE 942691C DE K2921 D DEK2921 D DE K2921D DE K0002921 D DEK0002921 D DE K0002921D DE 942691 C DE942691 C DE 942691C
Authority
DE
Germany
Prior art keywords
alloys
iron
permeability
magnetically soft
increase
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
DEK2921D
Other languages
German (de)
Inventor
Dr Phil Hermann Fahlenbrach
Dr Walter Koch
Hermann Woelk
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
Application filed by Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie filed Critical Aktiengesellschaft fuer Unternehmungen der Eisen und Stahlindustrie
Priority to DEK2921D priority Critical patent/DE942691C/en
Application granted granted Critical
Publication of DE942691C publication Critical patent/DE942691C/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere

Landscapes

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

Description

Verfahren zur Erhöhung der Permeabilität von magnetisch weichen Werkstoffen Den Gegenstand des Patents 93:2618 bildet die Verwendung von magnetischen Eisen-Silizium-Legierungen, die nach ihrer Verarbeitung einer Glühung bei Temperaturen zwischen 350 und 8oo° C, und zwar mindestens während des letzten Teiles der Glühung in sauerstoffhaltiger Atmosphäre, unterworfen werden.Method for increasing the permeability of magnetically soft materials The subject of the patent 93: 2618 is the use of magnetic iron-silicon alloys, which after their processing an annealing at temperatures between 350 and 800 ° C, at least during the last part of the Annealing in an oxygen-containing atmosphere.

Es hat sich nun gezeigt, daß besonders günstige Permeabilitätswerte erzielt werden, wenn anschließend an die Glühbehandlung in sauerstoffhaltiger Atmosphäre eine Behandlung im Vakuum bei Drücken, die kleiner als i Torr sind, im gleichen Temperaturbereich erfolgt.It has now been shown that particularly favorable permeability values can be achieved if subsequent to the annealing treatment in an oxygen-containing atmosphere treatment in vacuum at pressures less than i torr, in the same way Temperature range takes place.

Das Verfahren nach der Erfindung ist nicht nur bei Eisen-Silizium-Legierungen, sondern auch bei anderen magnetisch weichen Werkstoffen anwendbar. Beispielsweise kann es zur Erhöhung der Permeabilität bei Eisen-Aluminium-Legierungen mit bis zu ioo/o Aluminium oder bei Eisen-Chrom-Legierungen mit bis zu 30°/o Chrom sowie bei Eisen-Nickel-Legierungen mit bis zu 80% Nickel angewandt werden.The method according to the invention is not only applicable to iron-silicon alloys, but also applicable to other magnetically soft materials. For example it can increase the permeability of iron-aluminum alloys with up to ioo / o aluminum or, in the case of iron-chromium alloys, with up to 30% chromium as well as with Iron-nickel alloys with up to 80% nickel can be used.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Erhöhung der Permeabilität von Eisen-Silizium-Legierungen durch Glühen der Legierungen in sauerstoffhaltiger Atmosphäre bei Temperaturen zwischen 350 und 8oo° C nach Patent 932 618, dadurch gekennzeichnet, dafi nach der Glühung in sauerstoffhaltiger Atmosphäre im gleichen Temperaturbereich eine Behandlung im Vakuum bei Drücken unter r Torr erfolgt. PATENT CLAIMS: i. Process for increasing the permeability of iron-silicon alloys by annealing the alloys in an oxygen-containing atmosphere at temperatures between 350 and 800 ° C according to patent 932 618, characterized in that after annealing a treatment in an oxygen-containing atmosphere in the same temperature range Vacuum takes place at pressures below r Torr. 2. Anwendung des Verfahrens nach Anspruch i auf andere magnetisch weiche Legierungen als Eisen-Silizium-Legierungen, z. B. auf Eisen-Aluminium-Legierungen mit bis zu io % Aluminium, auf Eisen-Chrom-Legierungen mit bis zu 30°/o Chrom sowie auf Eisen-Nickel-Legierungen mit bis zu So% Nickel.2. Application of the method according to claim i on magnetically soft alloys other than iron-silicon alloys, e.g. B. on iron-aluminum alloys with up to 10% aluminum, on iron-chromium alloys with up to 30% chromium and on iron-nickel alloys with up to 50% nickel.
DEK2921D 1943-05-25 1943-05-25 Process to increase the permeability of magnetically soft materials Expired DE942691C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK2921D DE942691C (en) 1943-05-25 1943-05-25 Process to increase the permeability of magnetically soft materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK2921D DE942691C (en) 1943-05-25 1943-05-25 Process to increase the permeability of magnetically soft materials

Publications (1)

Publication Number Publication Date
DE942691C true DE942691C (en) 1956-05-03

Family

ID=7209653

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK2921D Expired DE942691C (en) 1943-05-25 1943-05-25 Process to increase the permeability of magnetically soft materials

Country Status (1)

Country Link
DE (1) DE942691C (en)

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