DE1074611B - The use of an aluminum-cobalt copper nickel iron permanent magnet alloy - Google Patents
The use of an aluminum-cobalt copper nickel iron permanent magnet alloyInfo
- Publication number
- DE1074611B DE1074611B DENDAT1074611D DE1074611DA DE1074611B DE 1074611 B DE1074611 B DE 1074611B DE NDAT1074611 D DENDAT1074611 D DE NDAT1074611D DE 1074611D A DE1074611D A DE 1074611DA DE 1074611 B DE1074611 B DE 1074611B
- Authority
- DE
- Germany
- Prior art keywords
- permanent magnet
- aluminum
- magnet alloy
- örsted
- gauss
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims description 6
- 239000000956 alloy Substances 0.000 title claims description 6
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 title claims description 6
- -1 aluminum-cobalt copper nickel iron Chemical compound 0.000 title description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000005347 demagnetization Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 230000002441 reversible Effects 0.000 claims description 6
- 230000035699 permeability Effects 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052803 cobalt Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000002775 capsule Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 206010048865 Hypoacusis Diseases 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Description
Die Verwendung einer Aluminium-Kobalt-Kupfer-Nickel-Eisen-Dauermagnetlegierung Eine Vormagnetisierung von magnetisch weichen Teilen geschieht oftmals dort, wo weichmagnetische Teile mit Wechselfeldern beansprucht werden, z. B. bei Hörkapseln für Telefone oder Schwerhörigengeräte. Dabei ist wesentlich, daß der für die Vormagnetisierung verwendete Dauermagnet eine hohe reversible P-ermeabilität aufweist.The use of an aluminum-cobalt-copper-nickel-iron permanent magnet alloy A premagnetization of magnetically soft parts often happens where soft magnetic parts are stressed with alternating fields, z. B. with earphones for telephones or devices for the hard of hearing. It is essential that the one for the premagnetization The permanent magnet used has a high reversible P-ermeability.
Eine hohe reversible Permeabilität hat ein Werkstoff, wenn seine Entmagnetisierungskurve vom Remanenzpunkt ab sehr steil abfällt, die Form der Entmagnetisierungskurve also sehr gestreckt ist. Die bisher für solche Zwecke verwendeten Dauermagnetwerkstoffe befriedigten nicht immer. Die Erfindung gibt einen Dauermagnetwerkstoff an die Hand, der eine für den Verwendungszweck wesentlich verbesserte Kurvenform aufweist.A material has a high reversible permeability if its demagnetization curve drops very steeply from the remanence point, i.e. the shape of the demagnetization curve is very stretched. The permanent magnet materials previously used for such purposes did not always satisfy. The invention provides a permanent magnet material which has a significantly improved curve shape for the intended use.
Die Erfindung betrifft die Verwendung einer bekannten Dauermagnetlegierung mit 7 bis 100/0, vorzugsweise 84/o Aluminium, 20 bis 300/0, vorzugsweise 220% Kobalt, 2 bis 160/0, vorzugsweise 34/o Kupfer, 12 bis 17%, vorzugsweise 164/o Nickel, Rest Eisen, als Werkstoff für solche Dauermagnete, die ohne Einwirken eines Magnetfeldes von oberhalb 1200° C mit einer Geschwindigkeit von 5 Minuten auf 500° C, danach mit beliebiger Geschwindigkeit auf Raumtemperatur abgekühlt, schließlich auf 550 bis 650° C angelassen werden und nach dieser Behandlung eine Remanenz von 7000 bis 8000 Gauß, eine Koerzitivkraft von 300 bis 500 Örsted, eine sehr gestreckte Entmagnetisierungskurve und hohe reversible Permeabilität, vorzugsweise 10 Gauß/Örsted, aufweisen müssen, insbesondere für die Vormagnetisierung von magnetisch weichen Teilen wie bei Hörkapseln von Telefonen.The invention relates to the use of a known permanent magnet alloy with 7 to 100/0, preferably 84 / o aluminum, 20 to 300/0, preferably 220% cobalt, 2 to 160/0, preferably 34 / o copper, 12 to 17%, preferably 164 / o nickel, remainder Iron, as a material for such permanent magnets, which are made without the action of a magnetic field from above 1200 ° C at a rate of 5 minutes to 500 ° C, then cooled to room temperature at any rate, finally to 550 to 650 ° C and after this treatment a remanence of 7000 to 8000 Gauss, a coercive force of 300 to 500 Örsted, a very elongated demagnetization curve and high reversible permeability, preferably 10 Gauss / Örsted, must have, especially for the pre-magnetization of magnetically soft parts such as earphones of telephones.
In der Zeichnung sind Entmagnetisierungskurven von zwei Werkstoffen fast gleicher Zusammensetzung, aber verschiedener Vorbehandlung dargestellt. Kurve 1 zeigt eine Entmagnetisierungskurve einer Legierung mit 24% Co, 811/o Al, 14% Ni, 3% Cu, Rest Eisen, die aus der Literatur vorbekannt ist. Man erhält die Kurvenform der Kurve 1, wenn man mit einer Geschwindigkeit von etwa 0,1 bis 1° C pro Sekunde abkühlt. Bei diesem Werkstoff wurde eine reversible Permeabilität #L,. = 9,5 Gauß/Örsted gemessen.In the drawing there are demagnetization curves of two materials shown almost the same composition, but different pretreatment. Curve 1 shows a demagnetization curve of an alloy with 24% Co, 811 / o Al, 14% Ni, 3% Cu, remainder iron, which is already known from the literature. The curve shape is obtained of curve 1 when looking at a speed of about 0.1 to 1 ° C per second cools down. A reversible permeability #L ,. = 9.5 Gauss / Örsted measured.
Im Vergleich dazu ist in der gestrichelten Kurve 2 die Entmagnetisierungskurve einer nach der Erfindung behandelten Legierung mit 220/a Co, 8,5'o/11 Al, 16,7 % Ni, 3 % Cu, Rest Eisen, dargestellt, die gegenüber der Kurve 1 einen, fast geradlinigen Verlauf zeigt.In comparison, the dashed curve 2 shows the demagnetization curve an alloy treated according to the invention with 220 / a Co, 8.5'o / 11 Al, 16.7% Ni, 3% Cu, remainder iron, which is almost straight compared to curve 1 Course shows.
Die Abkühlung erfolgte von 1300 auf 500° C in 5 Minuten in Luft, während die Anlaßbehandlung bei 600° C durchgeführt wurde. Die reversible Permeabilität wurde an diesem nach der Erfindung behandelten Werkstoff zu 14 Gauß/Örsted bestimmt.The cooling took place from 1300 to 500 ° C in 5 minutes in air while the tempering treatment was carried out at 600 ° C. The reversible permeability was determined to be 14 Gauss / Örsted on this material treated according to the invention.
Bei Versuchen mit Hörkapseln von Schwerhörigengeräten, die mit Dauermagneten zur Vormagnetisierung nach der Erfindung ausgestattet waren, ergab sich eine Erhöhung der Lautstärke von etwa 20% gegenüber den gleichere Hörkapseln, die mit handelsüblichen Aluminium-Nickel- oder Aluminium-Nickel-KobaIt-Dauermagneten ausgerüstet waren.When trying to use hearing capsules from hearing aids that use permanent magnets were equipped for bias according to the invention, there was an increase the volume of about 20% compared to the same earphones that come with commercially available Aluminum-nickel or aluminum-nickel-cobalt permanent magnets were equipped.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1074611B true DE1074611B (en) | 1960-02-04 |
Family
ID=598630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1074611D Pending DE1074611B (en) | The use of an aluminum-cobalt copper nickel iron permanent magnet alloy |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1074611B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943787C (en) * | 1956-05-09 | N V Philips' Gloeilampenfabrieken Emdho ven (Niederlande) | Magnetic anisotropic permanent magnet based on iron containing nickel, aluminum and cobalt and a process for the production of such magnets |
-
0
- DE DENDAT1074611D patent/DE1074611B/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943787C (en) * | 1956-05-09 | N V Philips' Gloeilampenfabrieken Emdho ven (Niederlande) | Magnetic anisotropic permanent magnet based on iron containing nickel, aluminum and cobalt and a process for the production of such magnets |
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