AT131085B - Process for the oxidizing treatment of magnetic material in plate form. - Google Patents
Process for the oxidizing treatment of magnetic material in plate form.Info
- Publication number
- AT131085B AT131085B AT131085DA AT131085B AT 131085 B AT131085 B AT 131085B AT 131085D A AT131085D A AT 131085DA AT 131085 B AT131085 B AT 131085B
- Authority
- AT
- Austria
- Prior art keywords
- plate form
- magnetic material
- oxidizing treatment
- curve
- values
- Prior art date
Links
- 239000000696 magnetic material Substances 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims description 3
- 230000001590 oxidative effect Effects 0.000 title claims description 3
- 239000000463 material Substances 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 5
- 238000005261 decarburization Methods 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Soft Magnetic Materials (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur oxydierenden Behandlung von magnetischem Material in Plattenform.
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<Desc/Clms Page number 2>
Die Erfindung ist in der Zeichnung erläutert. Darin ist : Fig. l eine vergleichende Darstellung der Hysteresissohleife, die bei Nachmessung eines nur entkohlten Materials und eines nach der Erfindung behandelten Materials entsteht. Fig. 2 ein vergleichender Überblick der effektiven Permeabilität bei verschiedenen H der zwei Hysteresisschleifen der Fig. 1 und Fig. 3 eine vergrösserte Darstellung des Verlaufes von AB bei zyklisch veränderlichem AH.
Fig. 1 zeigt zwei HysteresisseBleifen, von denen sich die Kurve 7 auf Material bezieht, das nur entkohlt ist, und Kurve 11 auf ein Material, das nach Entkohlung oxydiert wird. Um die charakterstischen Eigenschaften der Kurven gut hervorzuheben, sollen sie bei zwei Werten der Feldstärke H' und T ?"verglichen werden. Infolge der Wechselströme entstehen zyklische Veränderungen AH um beide
EMI2.1
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denen Werten 'und H"zeigt sich, dass dieser Winkel für Kurve 1 stark und für Kurve 11 wenig verschieden ist. In Fig. 3 sind die Änderungen B bei grosser und kleiner Amplitude von AH aufgetragen.
Es zeigt sich, dass die effektive Permeabilität bei Kurve J scharf, bei Kurve II wenig von der Amplitude
EMI2.4
ergibt sich, dass bei Kurve 1 diese Winkel weit grössere Verschiedenheiten zeigen als bei Kurve 11.
In Fig. 2 sind die verschiedenen Werte von effektiver Permeabilität für jeden Punkt der Hysteresisschleife gemessen und als Funktion von H aufgetragen. Aus dieser graphischen Darstellung geht deutlich hervor, wie die effektive Permeabilität bei Material J stark, bei Material 77 wenig von der Feldstärke H abhängig ist.
<Desc / Clms Page number 1>
Process for the oxidizing treatment of magnetic material in plate form.
EMI1.1
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<Desc / Clms Page number 2>
The invention is illustrated in the drawing. Therein: FIG. 1 shows a comparative representation of the hysteresis sole, which arises when a subsequent measurement of a material that has only been decarburized and a material treated according to the invention. FIG. 2 shows a comparative overview of the effective permeability at different H of the two hysteresis loops of FIG. 1 and FIG. 3 shows an enlarged representation of the course of AB with cyclically variable AH.
Fig. 1 shows two hysteresis loops, of which curve 7 relates to material that has only been decarburized, and curve 11 to a material which is oxidized after decarburization. In order to emphasize the characteristic properties of the curves, they should be compared for two values of the field strengths H 'and T? ". As a result of the alternating currents, cyclical changes AH arise around both
EMI2.1
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The values' and H '' show that this angle differs greatly for curve 1 and slightly different for curve 11. In FIG. 3, the changes B for large and small amplitudes of AH are plotted.
It can be seen that the effective permeability for curve J depends sharply on the amplitude and for curve II it has little effect
EMI2.4
it results that with curve 1 these angles show much greater differences than with curve 11.
In FIG. 2, the various values of effective permeability for each point on the hysteresis loop are measured and plotted as a function of H. This graphic representation clearly shows how the effective permeability of material J is strongly dependent on the field strength H, and that of material 77 is little.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL131085X | 1927-07-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT131085B true AT131085B (en) | 1932-12-27 |
Family
ID=19775827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT131085D AT131085B (en) | 1927-07-19 | 1928-06-28 | Process for the oxidizing treatment of magnetic material in plate form. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT131085B (en) |
-
1928
- 1928-06-28 AT AT131085D patent/AT131085B/en active
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