SU63858A1 - Method for producing ferromagnetic powder for magnetic recording of vibrations - Google Patents
Method for producing ferromagnetic powder for magnetic recording of vibrationsInfo
- Publication number
- SU63858A1 SU63858A1 SU42607A SU42607A SU63858A1 SU 63858 A1 SU63858 A1 SU 63858A1 SU 42607 A SU42607 A SU 42607A SU 42607 A SU42607 A SU 42607A SU 63858 A1 SU63858 A1 SU 63858A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- vibrations
- magnetic recording
- ferromagnetic powder
- producing ferromagnetic
- ferromagnetic
- Prior art date
Links
- 230000005294 ferromagnetic effect Effects 0.000 title description 7
- 230000005291 magnetic effect Effects 0.000 title description 7
- 239000000843 powder Substances 0.000 title description 6
- 238000004519 manufacturing process Methods 0.000 title description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 235000013980 iron oxide Nutrition 0.000 description 3
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920002160 Celluloid Polymers 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical group [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- UBUHAZKODAUXCP-UHFFFAOYSA-N iron(2+);oxygen(2-);hydrate Chemical class O.[O-2].[Fe+2] UBUHAZKODAUXCP-UHFFFAOYSA-N 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Landscapes
- Hard Magnetic Materials (AREA)
Description
Дл записи и воспроизведени колебани магнитного пол , например , наход щегос в св зи с звуковым колебанием, необходимо, чтобы ферромагнитный порошок, нанесённый на целлулоидную плёнку тонким слоем, обладал высокой магнитной проницаемостью, большой коэрцитивной силой и высокой дисперсностью.In order to record and reproduce the oscillations of the magnetic field, for example, which is in connection with the sound vibrations, it is necessary that the ferromagnetic powder deposited on the celluloid film with a thin layer has a high magnetic permeability, high coercivity and high dispersion.
Существующие магнетиты непригодны дл этой цели по р ду при .чин. Магнитна проницаемость магнетитов, получаемых химическим путём, а также путём восстановлени немагнитных окисей железа при высокой температуре, как показали исследовани , низка, и частицы получаютс слишком крупные . Ферромагнитные окиси железа , получаемые окислением магнетитоЕ или обезвоживанием гидратов окисей железа, а также путём термического разложени щавелевокислого железа, тоже не удовлетвор ют поставленной задаче , вследствие весьма малой коэрцитивной силы.Existing magnetites are unsuitable for this purpose in the series at .chin. The magnetic permeability of magnetites obtained by chemical means, as well as by reduction of nonmagnetic iron oxides at high temperatures, as studies have shown, is low, and the particles are too large. Ferromagnetic iron oxides, obtained by the oxidation of magnetite or by dehydration of iron oxide hydrates, as well as by thermal decomposition of iron oxalate, also do not satisfy the task, due to the very small coercive force.
Предлагаемый насто щим изобретением способ получени ферромагнитных порошков обеспечивает их высокхю магнитную проницае .ость, сольшую козрцитпБную силу и высокую дисперсность.The method of obtaining ferromagnetic powders proposed by the present invention provides for their high magnetic permeability, high cosmic power, and high dispersion.
Способ состоит в том, что через нагретый до 160-260 магнетит, имеющий свободную вторичную валентность и получаемый химическим путём, пропускаетс хлор в присутствии внешнего намагничивающего пол . В результате этих физико-химических условий получаетс магнитно-твёрдый хлорид железа (хлор-закись-окиси) с сильными ферромагнитными свойствами , далеко пpeвocxoд ц и пl свойства магнетитов и ферромагнитных окисей.The method consists in that chlorine is heated through 160-260 magnetite, which has a free secondary valence and is chemically obtained, in the presence of an external magnetizing field. As a result of these physicochemical conditions, magnetically hard ferric chloride (chloro-nitrous oxide) with strong ferromagnetic properties is obtained, which is far ahead of the properties of magnetites and ferromagnetic oxides.
Магнетит с свободной валентностью можно, например, получить путём окислени осаждаемого из соответствующих растворов гидрата закиси железа. В качестве окислител можно вз ть KNOs.Magnetite with free valence can, for example, be obtained by oxidation of iron oxide hydroxide precipitated from the corresponding solutions. KNOs can be taken as the oxidant.
Дл сравнени IJL.nax и Н.,.тах ХЛОрзакись-окиси железа с другими окислами железа ниже приводитс таблица, составленна на основании исследований изобретател .For comparison, IJL.nax and H.,. Takh CHLORZOXIDE-iron oxide with other iron oxides, the table below is based on the inventor's research.
При рассмотрении таблицы нужно иметь в виду, что магнитна твёрдость увеличиваетс с увеличением HV,;-..::XWhen reviewing the table, one should keep in mind that the magnetic hardness increases with increasing HV,; - .. :: X
Из таблицы преимущества предлагаемого порошка очевидны.From the table, the advantages of the proposed powder are obvious.
Предмет и з о б р е т е i-r н Subject and reference about i r
Способ получени ферромагнитного порошка дл магнитной записи колебаний, о т л и ч а ю щ и и с тем, что полученный химическим порошок обрабатывают хлором при температуре 160-260 С в присутствии внешнего намагничкнаюшего пол .A method for producing a ferromagnetic powder for magnetic recording of vibrations, that is, that the chemical powder obtained is treated with chlorine at a temperature of 160-260 ° C in the presence of an external magnetized field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU42607A SU63858A1 (en) | 1941-04-12 | 1941-04-12 | Method for producing ferromagnetic powder for magnetic recording of vibrations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU42607A SU63858A1 (en) | 1941-04-12 | 1941-04-12 | Method for producing ferromagnetic powder for magnetic recording of vibrations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SU23407A1 SU23407A1 (en) | 1931-10-31 |
| SU63858A1 true SU63858A1 (en) | 1943-11-30 |
Family
ID=48244721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU42607A SU63858A1 (en) | 1941-04-12 | 1941-04-12 | Method for producing ferromagnetic powder for magnetic recording of vibrations |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU63858A1 (en) |
-
1941
- 1941-04-12 SU SU42607A patent/SU63858A1/en active
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