DE830661C - Creation of a linear relationship between induction, in particular saturation induction, and temperature in magnetic materials - Google Patents
Creation of a linear relationship between induction, in particular saturation induction, and temperature in magnetic materialsInfo
- Publication number
- DE830661C DE830661C DEV757A DEV0000757A DE830661C DE 830661 C DE830661 C DE 830661C DE V757 A DEV757 A DE V757A DE V0000757 A DEV0000757 A DE V0000757A DE 830661 C DE830661 C DE 830661C
- Authority
- DE
- Germany
- Prior art keywords
- induction
- temperature
- magnetic materials
- linear relationship
- nickel
- 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
- 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
- C21D1/78—Combined heat-treatments not provided for above
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Hard Magnetic Materials (AREA)
- Heat Treatment Of Articles (AREA)
- Soft Magnetic Materials (AREA)
Description
Erzeugung eines linearen Zusammenhangs von Induktion, insbesondere Sättigungsinduktion, und Temperatur in magnetischen Werkstoffen Es ist bekannt, daß in der Technik magnetische Werkstoffe verlangt werden, die innerhalb eines bestimmten Temperaturbereiches eine in Abhängigkeit von der Temperatur annähernd linear verlaufende Induktion aufweisen, wobei sich zugleich die Induktion mit der Temperatur innerhalb dieses Bereiches möglichst stark ändern soll. Derartige Werkstoffe werden z. B. gebraucht zur Temperaturkompensation von Dauermagnetsystemen, beispielsweise in Elektrizitätszählern.Creation of a linear relationship between induction, in particular Saturation induction and temperature in magnetic materials It is known that magnetic materials are required in the art that are within a certain Temperature range is an approximately linear depending on the temperature Have induction, at the same time the induction with the temperature within should change this area as much as possible. Such materials are z. B. used for temperature compensation of permanent magnet systems, for example in Electricity meters.
Man hat für diesen Zweck einerseits Nickel-Eisen-Legierungen mit etwa 30°/o Nickel, sowie gegebenenfalls Zusätzen von z. B. Chrom, vorgeschlagen, andererseits Kupfer-Nickel-Legierungen mit etwa 6o bis 70°/o Kupfer. Die gestellten Anforderungen werden, soweit man aus Veröffentlichungen entnehmen kann, bisher am besten von etwa 3o o/oigern Nickelstahl erfüllt, der bei einer Meßfeldstärke von ioo örstedt in einem Temperaturbereich von etwa 50° C eine nahezu geradlinige Abhängigkeit der Sättigungsinduktion von der Temperatur aufweist mit einer Steilheit von etwa 55 bis 6o Gauß/' C.For this purpose, on the one hand, nickel-iron alloys with about 30% nickel, and optionally additions of z. B. Chromium, proposed on the other hand Copper-nickel alloys with about 6o to 70% copper. The demands made as far as one can see from publications, so far best of about 3o o / oigern nickel steel, which with a measuring field strength of 100 örstedt in a temperature range of about 50 ° C an almost straight line dependence of the Has saturation induction from temperature with a slope of about 55 up to 6o Gauss / 'C.
Erfindungsgemäß wird an Nickelstählen etwa dieser Zusammensetzung durch eine Wärmebehandlung eine besonders steile und praktisch vollständig gerade Induktionstemperaturkurve erreicht. Insbesondere die Sättigungsinduktion fällt mit der Temperatur über einen Bereich von etwa 5o ° C praktisch vollständig gerade ab mit einer Steilheit von etwa 65 bis 9o Gauß/' C. Die erfindungsgemäße Behandlung besteht darin, daß die Werkstoffe einer Glühung in feuchtem Wasserstoff unterworfen werden.According to the invention, about this composition is used on nickel steels a particularly steep and practically completely straight one through heat treatment Induction temperature curve reached. In particular, the saturation induction also falls the temperature almost completely straight down over a range of about 50 ° C with a steepness of about 65 to 9o Gauss / 'C. The invention Treatment consists in giving the materials an annealing in moist hydrogen be subjected.
Die zu behandelnden Stähle enthalten etwa 30% Nickel. Sie können noch Zusätze weiterer Bestandteile, z. B. Chrom, Molybdän, Vanadin, Kupfer in Mengen bis zu etwa 5 %, enthalten. Die Höhe des notwendigen Nickelgehaltes hängt von Art und Menge der Zusätze ab und ist so zu wählen, daß die Curietemperatur jeweils etwas oberhalb der höchsten Arbeitstemperatur liegt. Glühtemperatur, Glühdauer und Feuchtigkeitsgehalt des Wasserstoffes müssen je nach den Abmessungen und der Zusammensetzung des zu behandelnden Werkstückes von Fall zu Fall gewählt werden. Bei einer reinen Nickel-Eisen-Legierung mit etwa 30% Nickel hat sich zur Erreichung einer steilen und geradlinigen Abhängigkeit der Sättigungsinduktion von der Temperatur eine Glühtemperatur von 6oo bis 8oo° C, vorzugsweise 65o° C, bewährt. Die Glühdauer betrug beispielsweise bei einem 2 mm dicken Band 15 Stunden. Als Wasserstoff wurde ein solcher verwendet, der bei Raumtemperatur mit Wasserdampf gesättigt war. Der Wasserdampf-Behalt muß unter Umständen je nach den sonstigen Bedingungen, z. B. Glühtemperatur, Glühdauer, Zusammensetzung und Form der zu behandelnden Werkstücke, abgewandelt \%-erden.The steels to be treated contain around 30% nickel. You still can Additions of other ingredients, e.g. B. Chromium, molybdenum, vanadium, copper in quantities up to about 5%. The level of the necessary nickel content depends on Art and amount of additives and is to be chosen so that the Curie temperature is slightly is above the highest working temperature. Annealing temperature, annealing time and moisture content of hydrogen must depend on the dimensions and the composition of the to treated workpiece can be selected on a case-by-case basis. With a pure nickel-iron alloy with about 30% nickel has become to achieve a steep and straight line dependency the saturation induction from the temperature an annealing temperature of 600 to 8oo ° C, preferably 65o ° C, proven. The annealing duration was, for example, in the case of a 2nd mm thick tape 15 hours. The hydrogen used was that of Room temperature was saturated with water vapor. The water vapor tank may have to be depending on the other conditions, e.g. B. annealing temperature, annealing time, composition and shape of the workpieces to be treated, modified \% - earth.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV757A DE830661C (en) | 1950-03-24 | 1950-03-24 | Creation of a linear relationship between induction, in particular saturation induction, and temperature in magnetic materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEV757A DE830661C (en) | 1950-03-24 | 1950-03-24 | Creation of a linear relationship between induction, in particular saturation induction, and temperature in magnetic materials |
Publications (1)
Publication Number | Publication Date |
---|---|
DE830661C true DE830661C (en) | 1952-02-07 |
Family
ID=7569277
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEV757A Expired DE830661C (en) | 1950-03-24 | 1950-03-24 | Creation of a linear relationship between induction, in particular saturation induction, and temperature in magnetic materials |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE830661C (en) |
-
1950
- 1950-03-24 DE DEV757A patent/DE830661C/en not_active Expired
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