DE902732C - Process for the production of ferrites suitable for magnetic purposes - Google Patents
Process for the production of ferrites suitable for magnetic purposesInfo
- Publication number
- DE902732C DE902732C DEB17552A DEB0017552A DE902732C DE 902732 C DE902732 C DE 902732C DE B17552 A DEB17552 A DE B17552A DE B0017552 A DEB0017552 A DE B0017552A DE 902732 C DE902732 C DE 902732C
- Authority
- DE
- Germany
- Prior art keywords
- melt
- ferrite
- heat
- ferrites
- production
- 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
- 229910000859 α-Fe Inorganic materials 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 7
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000155 melt Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 150000002739 metals Chemical class 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000000843 powder Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 1
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 1
- JBMRMLLHFBHFDV-UHFFFAOYSA-N [Ni].[Mn].[Zn] Chemical compound [Ni].[Mn].[Zn] JBMRMLLHFBHFDV-UHFFFAOYSA-N 0.000 description 1
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Iron (AREA)
Description
Verfahren zur Herstellung von für magnetische Zwecke geeigneten Ferriten Gegenstand des Patents 872 203 ist ein Verfahren zur Herstellung von insbesondere für magnetische Zwecke geeigneten Ferriten, nach dem man Ferrite in technisch einfacher Weise herstellen kann, indem man die Metalle, deren Oxyde den Ferrit bilden, in dem für die Bildung des gewünschten Ferrits erforderlichen Mengenverhältnis durch Einwirkung von Sauerstoff bei Schmelztemperatur in die Oxyde überführt. Man kann dabei entweder alle Metalle, deren Oxyde den Ferrit bilden, oxydierend einschmelzen oder auch nur einen Teil von ihnen, wobei man dann die anderen Bestandteile des Ferrits als Oxyde oder als Oxyd liefernde Verbindungen beim oxydierenden Schmelzen der Metalle zusetzt.Process for the production of ferrites suitable for magnetic purposes The subject of patent 872 203 is a process for the production of ferrites suitable in particular for magnetic purposes, according to which ferrites can be produced in a technically simple manner by converting the metals whose oxides form the ferrite into The ratio of quantities required for the formation of the desired ferrite is converted into the oxides by the action of oxygen at the melting temperature. You can either oxidize all the metals whose oxides form the ferrite, or only some of them, in which case the other constituents of the ferrite are added as oxides or as oxide-providing compounds during the oxidizing melting of the metals.
Es wurde nun gefunden, daß man Ferrite mit höherer Permeabilität als nach dem Verfahren gemäß dem Hauptpatent erhalten kann, wenn man die Überführung der entsprechenden Metalle in die Oxyde unter Wärmezufuhr von außen vornimmt. Diese Wärmezufuhr von außen kann z. B. durch einen elektrischen Lichtbogen bewirkt werden, wobei man den Lichtbogen gegen die Oberfläche des Tiegelinhalts brennen läßt, oder durch elektrische Widerstandsheizung, wobei man zweckmäßig den Tiegelinhalt als Widerstand benutzt und die beim Stromdurchgang entstehende Stromwärme ausnutzt. Beispiel Zur Herstellung eines Nickel-Zink-Mangan-Ferrits wird in einen wassergekühlten Eisentiegel ein pulveriges Gemisch aus 10,5 Teilen (Gewichtsteilen) Eisenpulver, o,1 Teil Nickelpulver, 0,2 Teilen Zinkpulver und o,25 Teilen Braunstein eingefüllt. Auf die Oberfläche dieser Füllung läßt man, erforderlicherweise aus mehreren Rohren, Sauerstoff aufströmen und zündet den Tiegelinhalt durch kurzes Berühren mit einer offenen Flamme an. Der Tiegelinhält schmilzt nun unter der ständigen Einwirkung des Sauerstoffstromes zusammen.It has now been found that ferrites with a higher permeability than can be obtained according to the method according to the main patent, if the transfer of the corresponding metals in the oxides with the supply of heat from the outside. These Heat supply from the outside can, for. B. caused by an electric arc, allowing the arc to burn against the surface of the contents of the crucible, or by electrical resistance heating, where it is expedient to use the crucible content as Resistance used and the heat generated by the passage of electricity exploits. Example To manufacture a nickel-zinc-manganese ferrite, a water-cooled iron crucible a powdery mixture of 10.5 parts (parts by weight) Iron powder, 0.1 part nickel powder, 0.2 part zinc powder and 0.25 parts manganese dioxide filled. If necessary, the surface of this filling is left out several tubes, oxygen flows up and ignites the contents of the crucible by briefly Touching it with an open flame. The contents of the crucible now melt under the constant Effect of the oxygen flow together.
Vor Beginn der Reaktion hat man über dem Tiegel eine in vertikaler Richtung verschiebbare Kohleelektrode angebracht, ,an die man den einen Pol einer elektrischen Spannungsquelle angeschlossen hat, während der Wandere Pol an dem Tiegel liegt. Wenn zufolge der Oxydation der Metalle der Tiegelinhalt zum Schmelzen gebracht ist, zündet man durch Senken der Kohleelektrode auf de Oberfläche der Schmelze undanschließendes Hochziehen der Kohleelektrode den Lichtbogen ..wischen Kohleelektrode und Oberfläche der Schmelze. Der Lichtbogen wird unter ständiger Einwirkung des Sauerstoffstromes so lange aufrechterhalten, bis die Schmelze restlos oxydiert ist. Man kann die Schmelze dann im Tiegel erstarren lassen oder ,auch ausgießen und dann pulverisieren.Before the start of the reaction, one has a vertical one above the crucible Direction of sliding carbon electrode attached, to which one pole of a has connected electrical voltage source, while the wandere pole on the crucible lies. When the contents of the crucible melt as a result of the oxidation of the metals is ignited by lowering the carbon electrode on the surface of the melt and then Pull up the carbon electrode to wipe the arc ... between the carbon electrode and the surface the melt. The arc is under constant influence of the oxygen flow Maintain this until the melt is completely oxidized. You can melt the then let solidify in the crucible or, also pour out and then pulverize.
In dieser Weise hergestelltes Ferritpulver ergibt sowohl als Pulver wie ,als zu einem Stab gepreßter Kern eine wesentlich höhere Permeabilität als das nach dem Verfahren des Hauptpatents hergestellte Ferritpulver.Ferrite powder produced in this way yields both powder like, as a core pressed into a rod, a much higher permeability than that Ferrite powder produced according to the process of the main patent.
Man kann der SchFnelze auch in der Weise Wärme von außen zuführen, daß man an Stelle der Kohleelektrode eine wassergekühlte Metallelektrode, z. B. eine solche aus Eisen, verwendet und diese in die Schmelze hineintaucht und durch die beim Stromdurchgang von der Metallelektrode über die Schmelze zur Tiegelwand erzeugte Stromwärme die Schmelze zusätzlich erhitzt.You can also add heat to the melt from outside that instead of the carbon electrode, a water-cooled metal electrode, e.g. B. one made of iron, used and immersed in the melt and through that when the current passes from the metal electrode via the melt to the crucible wall The heat generated by electricity additionally heats the melt.
In ähnlicher Weise lassen sich auch andere Ferrite, z. B. Bleikupfer-Ferrit, Manganzink-Ferrit, Nickelzink-Ferrit, Kixpferzink-Ferrit, Magnesiumzink-Ferrit und Kobalt-Ferrit, herstellen.In a similar way, other ferrites, e.g. B. lead copper ferrite, Manganese zinc ferrite, nickel zinc ferrite, Kixpferzink ferrite, magnesium zinc ferrite and Cobalt ferrite.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB17552A DE902732C (en) | 1951-11-11 | 1951-11-11 | Process for the production of ferrites suitable for magnetic purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB17552A DE902732C (en) | 1951-11-11 | 1951-11-11 | Process for the production of ferrites suitable for magnetic purposes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE902732C true DE902732C (en) | 1954-01-28 |
Family
ID=6959383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB17552A Expired DE902732C (en) | 1951-11-11 | 1951-11-11 | Process for the production of ferrites suitable for magnetic purposes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE902732C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1075034B (en) * | 1956-11-16 | 1960-02-04 | Badische Anilin- S. Soda Fabrik Aktiengesellschaft, Ludwigshafen/Rhem | Process for the production of ferrites |
| DE1229437B (en) * | 1965-03-23 | 1966-11-24 | Hermsdorf Keramik Veb | Process for the production of sintering materials |
-
1951
- 1951-11-11 DE DEB17552A patent/DE902732C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1075034B (en) * | 1956-11-16 | 1960-02-04 | Badische Anilin- S. Soda Fabrik Aktiengesellschaft, Ludwigshafen/Rhem | Process for the production of ferrites |
| DE1229437B (en) * | 1965-03-23 | 1966-11-24 | Hermsdorf Keramik Veb | Process for the production of sintering materials |
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