DE911139C - Iron alloy with a low and adjustable temperature coefficient of permeability - Google Patents
Iron alloy with a low and adjustable temperature coefficient of permeabilityInfo
- Publication number
- DE911139C DE911139C DES3145D DES0003145D DE911139C DE 911139 C DE911139 C DE 911139C DE S3145 D DES3145 D DE S3145D DE S0003145 D DES0003145 D DE S0003145D DE 911139 C DE911139 C DE 911139C
- Authority
- DE
- Germany
- Prior art keywords
- temperature coefficient
- permeability
- low
- adjustable temperature
- iron alloy
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
Description
Es ist bekannt, daß Spulen mit Massekernen aus Eisen-Silizium-Aluminium-Legierungen, deren Zusammensetzung beispielsweise etwa 9,5% Silizium, 5,5% Aluminium, Rest Eisen beträgt, einen unerwünscht hohen Temperaturkoeffizienten der Permeabilität besitzen. Dieser Temperaturkoeffizient a liegt etwa zwischen -0,5 und -i, io-3 pro Grad. Ein solcher Temperaturgang ist aber für viele Anwendungszwecke, z. B. für konstante Schwingkreise und Filter, hinderlich.It is known that coils with mass cores made of iron-silicon-aluminum alloys, their composition, for example, about 9.5% silicon, 5.5% aluminum, the remainder iron have an undesirably high temperature coefficient of permeability. This temperature coefficient a is approximately between -0.5 and -i, io-3 per degree. A However, such a temperature response is useful for many purposes, e.g. B. for constant Resonant circuits and filters, a hindrance.
Es ist bereits bekannt, solchen Legierungen zur Verbesserung der Bearbeitbarkeit, der Walzbarkeit und der magnetischen Eigenschaften Zusätze von Nickel, Molybdän; Mangan oder anderen Metallen hinzuzufügen. Durch solche Zusätze wird aber meist der Temperaturkoeffizient überhaupt nicht beeinflußt oder erst wenn zu große Mengen zugesetzt werden, so daß wieder die magnetischen und mechanischen Eigenschaften fühlbar verschlechtert werden.It is already known to use such alloys to improve the machinability, rollability and magnetic properties additions of nickel, molybdenum; Add manganese or other metals. Such additions will mostly the temperature coefficient is not influenced at all or only if the amounts are too large be added, so that again the magnetic and mechanical properties noticeably worsen.
Es hat sich nun überraschenderweise herausgestellt, daß sehr geringe Molybdänzusätze von o,2 bis etwa i % den Temperaturkoeffizienten von Eisen-Silizium-Aluminium-Legierungen in durchaus reproduzierbarer Weise beeinflussen, ohne die mechanischen oder magnetischen Eigenschaften irgendwie zu schädigen.It has now been found, surprisingly, that very little Molybdenum additions from 0.2 to about i% the temperature coefficient of iron-silicon-aluminum alloys affect in a completely reproducible way, without the mechanical or magnetic Somehow damaging properties.
Erfindungsgemäß sollen daher in allen jenen Fällen, in denen es auf einen geringen und einstellbaren Temperaturkoeffizienten der Permeabilität ankommt, wie bei konstanten Schwingkreisen und Filtern, Eisen-Silizium-Aluminium-Legierungen mit etwa 9 bis ro% Silizium, 5 bis 6% Aluminium, o,2 bis etwa i % Molybdän, Rest Eisen, verwendet werden.According to the invention should therefore in all those cases in which there is a low and adjustable temperature coefficient of permeability arrives, as with constant oscillating circuits and filters, iron-silicon-aluminum alloys with about 9 to ro% silicon, 5 to 6% aluminum, 0.2 to about 1% molybdenum, the remainder Iron, can be used.
Die Figur zeigt, in welcher Weise der Temperaturkoeffizient sich in Abhängigkeit vom Molvbdängehalt von o bis i % ändert. 'Ulan kann aus der Figur entnehmen, welche Zusätze von Molybdän erforderlich sind, um einen gewünschten Temperaturkoeffizienten zu erreichen.The figure shows the way in which the temperature coefficient turns into Depending on the Molvbdängehalt changes from o to i%. 'Ulan can see from the figure, what additions of molybdenum are required to achieve a desired temperature coefficient to reach.
Ein bestimmter einstellbarer Temperaturkoeffizient ist deshalb bei Schwingkreisen und anderen Einrichtungen erforderlich, da diese im allgemeinen aus Kondensatoren und Spulen bestehen. Der Temperaturkoeffizient des Kondensators läßt sich in den meisten Fällen nicht beeinflussen, so daß man gezwungen ist, die erwünschte Kompensation des Temperaturkoeffizienten der Gesamtanordnung durch entsprechende Auswahl des Temperaturkoeffizienten der Massekernspule zu erreichen. Dafür betritt die Erfindung einen einfachen und sicher zum Ziel führenden Weg.A certain adjustable temperature coefficient is therefore at Resonant circuits and other facilities are required as these are generally made up Capacitors and coils exist. The temperature coefficient of the capacitor leaves In most cases they do not influence each other, so that one is forced to choose the one that is desired Compensation of the temperature coefficient of the overall arrangement by appropriate To achieve selection of the temperature coefficient of the ground core coil. For that enters the invention a simple and safe way leading to the goal.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES3145D DE911139C (en) | 1943-01-17 | 1943-01-17 | Iron alloy with a low and adjustable temperature coefficient of permeability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES3145D DE911139C (en) | 1943-01-17 | 1943-01-17 | Iron alloy with a low and adjustable temperature coefficient of permeability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE911139C true DE911139C (en) | 1954-05-10 |
Family
ID=7469983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES3145D Expired DE911139C (en) | 1943-01-17 | 1943-01-17 | Iron alloy with a low and adjustable temperature coefficient of permeability |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE911139C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1240672B (en) * | 1959-02-21 | 1967-05-18 | Deutsche Edelstahlwerke Ag | Use of an iron-chromium alloy for the production of objects with temperature-independent magnetic permeability |
-
1943
- 1943-01-17 DE DES3145D patent/DE911139C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1240672B (en) * | 1959-02-21 | 1967-05-18 | Deutsche Edelstahlwerke Ag | Use of an iron-chromium alloy for the production of objects with temperature-independent magnetic permeability |
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