DE673877C - Manufacture of permanent magnets - Google Patents
Manufacture of permanent magnetsInfo
- Publication number
- DE673877C DE673877C DEA67263D DEA0067263D DE673877C DE 673877 C DE673877 C DE 673877C DE A67263 D DEA67263 D DE A67263D DE A0067263 D DEA0067263 D DE A0067263D DE 673877 C DE673877 C DE 673877C
- Authority
- DE
- Germany
- Prior art keywords
- manufacture
- permanent magnets
- alloys
- cobalt
- tungsten
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Description
Herstellung von Dauermagneten Die Erfindung betrifft die Verwendung von Eisen-Kobalt-Wolfram/Molybdän-Sinterlegierungen für die Herstellung von Dauermagneten.Manufacture of Permanent Magnets The invention relates to the use of iron-cobalt-tungsten / molybdenum sintered alloys for the production of permanent magnets.
Eisen-Kobalt-Molybdän und Wolfram enthaltende Legierungen sind bereits bekannt, und zwar auch in den später beschriebenen Zusammnensetzungen. Für die Legierungszusammensetzung selbst wird daher kein Schutz beansprucht.Iron-cobalt-molybdenum and tungsten containing alloys are already there known, also in the compositions described later. For the alloy composition therefore no protection is claimed.
Derartige Legierungen, z. B. mit der Zusammensetzung 7 5 bis 8 o % Eisen, Io % Kobalt und I o bis i 5 % Wolfram oder Molybdän, hat mann bisher zu Stromeinführungsdrähten für Glasgefäße verwendet. Auch hat man schon erkannt, daß diese Legierungen ausscheidungshärtefähig sind und sich für die Herstellung von harten Schneidwerkzeugen oder verschleißfesten Werkzeugen eignen. Um die besten Gütewerte zu erzielen, hat man schließlich schon vorgeschlagen, die 2 bis 40 0/0 Wolfram und 2 bis 40% Kobalt, Nickel oder Mangan enthaltenden Eisenlegierungen auf Temperaturen über 9oo° C zu erhitzen, rasch abzukühlen und bei 4oo bis 8oo° C anzulassen. Auch für diese Wärmebehandlung wird daher kein Schutz beansprucht.Such alloys, e.g. B. with the composition 7 5 to 8 o% Iron, Io% cobalt and I o to I 5% tungsten or molybdenum have been used to make current feed wires used for glass vessels. It has also already been recognized that these alloys are precipitation hardenable are and are dedicated to the manufacture of hard cutting tools or wear-resistant Tools. After all, in order to achieve the best quality values, one already has suggested the 2 to 40 0/0 tungsten and 2 to 40% cobalt, nickel or manganese to heat containing iron alloys to temperatures above 900 ° C, to cool quickly and to be tempered at 4oo to 8oo ° C. There is therefore no for this heat treatment either Protection claimed.
Es wurde nun gefunden, daß die bekannten Legierungen, vorzugsweise
solche der folgenden Zusammensetzungen
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US673877XA | 1931-09-30 | 1931-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE673877C true DE673877C (en) | 1939-03-30 |
Family
ID=22075671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA67263D Expired DE673877C (en) | 1931-09-30 | 1932-09-28 | Manufacture of permanent magnets |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE673877C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764858C (en) * | 1939-09-06 | 1953-03-16 | Hartmetallwerkzeugfabrik Meuts | Process for the production of permanent magnets from iron-aluminum-nickel alloys |
-
1932
- 1932-09-28 DE DEA67263D patent/DE673877C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE764858C (en) * | 1939-09-06 | 1953-03-16 | Hartmetallwerkzeugfabrik Meuts | Process for the production of permanent magnets from iron-aluminum-nickel alloys |
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