JPS55130824A - Oxide magnetic material - Google Patents
Oxide magnetic materialInfo
- Publication number
- JPS55130824A JPS55130824A JP3503579A JP3503579A JPS55130824A JP S55130824 A JPS55130824 A JP S55130824A JP 3503579 A JP3503579 A JP 3503579A JP 3503579 A JP3503579 A JP 3503579A JP S55130824 A JPS55130824 A JP S55130824A
- Authority
- JP
- Japan
- Prior art keywords
- factor
- mno
- cao
- zno
- sio
- 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.)
- Granted
Links
Landscapes
- Compounds Of Iron (AREA)
- Magnetic Ceramics (AREA)
- Soft Magnetic Materials (AREA)
Abstract
PURPOSE: To provide metal tape erasing head material with good magnetic property by using a composition essentially consisting of a specific compositon of Fe2O3, MnO, and ZnO and additives of small amounts of Co2O3, CaO, and SiO2 in specific proportion.
CONSTITUTION: Manganese zinc ferrite consisting of Fe2O3 in 53W57mol%, MnO in 36W40mol%, and ZnO in 5W10mol% is mixed with additives of Co2O3 in 0.02W 0.2wt%, Cao in 0.01W0.10% (excluding 0.10%), and SiO2 in 0.005W0.02%. The mixture is preliminarily sintered in air at 800°C, grained and molded, and then subjected to the major sintering process to form magnetic material. The method provides a high-saturation magnetic flux and high initial permeability, improves temperature change of initial permeability μ, hysterisis loss factor h10, and quality factor Q, decreases residual magnetic flux Br and coercive force Hc, and enhances erase factor, distortion factor, and mold deterioration property.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3503579A JPS55130824A (en) | 1979-03-27 | 1979-03-27 | Oxide magnetic material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3503579A JPS55130824A (en) | 1979-03-27 | 1979-03-27 | Oxide magnetic material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55130824A true JPS55130824A (en) | 1980-10-11 |
JPS6111892B2 JPS6111892B2 (en) | 1986-04-05 |
Family
ID=12430791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3503579A Granted JPS55130824A (en) | 1979-03-27 | 1979-03-27 | Oxide magnetic material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55130824A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58115027A (en) * | 1981-12-28 | 1983-07-08 | Tadayoshi Karasawa | Oxide magnetic material and preparation thereof |
JPS58145622A (en) * | 1982-02-12 | 1983-08-30 | Tdk Corp | Magnetic carrier particle |
JPS58145625A (en) * | 1982-02-12 | 1983-08-30 | Tdk Corp | Magnetic carrier particle |
JPS5948774A (en) * | 1982-09-13 | 1984-03-21 | Nippon Teppun Kk | Carrier for electrophotographic development |
JPS59139052A (en) * | 1983-01-31 | 1984-08-09 | Fuji Xerox Co Ltd | Developing agent for electronic copying machine |
CN107673753A (en) * | 2017-09-15 | 2018-02-09 | 常熟浩博电子科技有限公司 | High-performance Mn Zn ferrites with the interference of anti-wireless radiation and preparation method thereof |
CN108017382A (en) * | 2017-12-04 | 2018-05-11 | 广东佛山金刚磁业有限公司 | MnZn Ferrite Materials and preparation method thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04113699U (en) * | 1990-10-24 | 1992-10-05 | 高砂熱学工業株式会社 | window blinds |
TWI228729B (en) | 2002-09-02 | 2005-03-01 | Tdk Corp | Mn-Zn ferrite, transformer magnetic core and transformer |
-
1979
- 1979-03-27 JP JP3503579A patent/JPS55130824A/en active Granted
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58115027A (en) * | 1981-12-28 | 1983-07-08 | Tadayoshi Karasawa | Oxide magnetic material and preparation thereof |
JPS58145622A (en) * | 1982-02-12 | 1983-08-30 | Tdk Corp | Magnetic carrier particle |
JPS58145625A (en) * | 1982-02-12 | 1983-08-30 | Tdk Corp | Magnetic carrier particle |
JPS6237783B2 (en) * | 1982-02-12 | 1987-08-14 | Tdk Electronics Co Ltd | |
JPS6238696B2 (en) * | 1982-02-12 | 1987-08-19 | Tdk Electronics Co Ltd | |
JPS5948774A (en) * | 1982-09-13 | 1984-03-21 | Nippon Teppun Kk | Carrier for electrophotographic development |
JPS6240705B2 (en) * | 1982-09-13 | 1987-08-29 | Nippon Tetsupun Kk | |
JPS59139052A (en) * | 1983-01-31 | 1984-08-09 | Fuji Xerox Co Ltd | Developing agent for electronic copying machine |
CN107673753A (en) * | 2017-09-15 | 2018-02-09 | 常熟浩博电子科技有限公司 | High-performance Mn Zn ferrites with the interference of anti-wireless radiation and preparation method thereof |
CN107673753B (en) * | 2017-09-15 | 2020-08-04 | 常熟浩博电子科技有限公司 | High-performance Mn-Zn ferrite with wireless radiation interference resistance and preparation method thereof |
CN108017382A (en) * | 2017-12-04 | 2018-05-11 | 广东佛山金刚磁业有限公司 | MnZn Ferrite Materials and preparation method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6111892B2 (en) | 1986-04-05 |
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