JPS5623713A - Manufacture of thin plate for magnetic head core - Google Patents
Manufacture of thin plate for magnetic head coreInfo
- Publication number
- JPS5623713A JPS5623713A JP9855579A JP9855579A JPS5623713A JP S5623713 A JPS5623713 A JP S5623713A JP 9855579 A JP9855579 A JP 9855579A JP 9855579 A JP9855579 A JP 9855579A JP S5623713 A JPS5623713 A JP S5623713A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- thin plate
- particles
- manufacture
- magnetic head
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000000843 powder Substances 0.000 abstract 7
- 239000002245 particle Substances 0.000 abstract 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 230000002706 hydrostatic effect Effects 0.000 abstract 1
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract 1
- 238000010309 melting process Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
- 238000009692 water atomization Methods 0.000 abstract 1
Classifications
-
- 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
- H01F1/12—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 soft-magnetic materials
- H01F1/14—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 soft-magnetic materials metals or alloys
- H01F1/20—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder
- H01F1/22—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 soft-magnetic materials metals or alloys in the form of particles, e.g. powder pressed, sintered, or bound together
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetic Heads (AREA)
- Soft Magnetic Materials (AREA)
Abstract
PURPOSE:To manufacture the thin plate having high wear resistance by positively introducing oxide thereto by employing an atomizing process easily oxidizing it and adding oxidizable element thereto and increasing the bonding force of powder particles owing to sintering by reducing atomized powder. CONSTITUTION:When preparing stock powder containing Fe-Ni group magnetic alloy composition having as a whole one or more elements selected from the group consisting of Al, Ti, Mg, Ca, Ce and Be components as the entire powder, molten alloy is molten by vacuum melting process, and is then pulverized by a water atomizing process in a mixture of air and argon gas. The powder is reduced in hydrogen stream at predetermined temperature for predetermined time, is then inserted into a rubber container, and is pressure molded under predetermined pressure by a hydrostatic compression. Further, dust powder thus molded is sintered for predetermined time to increase the bonding strength between the particles of the powder to prevent the particles from falling, and the thin plate for magnetic head core having high wear resistance is manufactured.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9855579A JPS5623713A (en) | 1979-08-01 | 1979-08-01 | Manufacture of thin plate for magnetic head core |
| DE3019449A DE3019449C2 (en) | 1979-05-25 | 1980-05-21 | Process for the production of magnetic head cores |
| GB8016976A GB2051622A (en) | 1979-05-25 | 1980-05-22 | Method for manufacturing components for magnetic heads |
| FR8011993A FR2458868A1 (en) | 1979-05-25 | 1980-05-23 | PROCESS FOR THE PRODUCTION OF COMPONENTS FOR MAGNETIC HEADS |
| US06/152,782 US4336066A (en) | 1979-05-25 | 1980-05-23 | Method for manufacturing components for magnetic heads of increased abrasion resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9855579A JPS5623713A (en) | 1979-08-01 | 1979-08-01 | Manufacture of thin plate for magnetic head core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5623713A true JPS5623713A (en) | 1981-03-06 |
Family
ID=14222928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9855579A Pending JPS5623713A (en) | 1979-05-25 | 1979-08-01 | Manufacture of thin plate for magnetic head core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5623713A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220378A (en) * | 1975-08-07 | 1977-02-16 | Kobe Steel Ltd | Method of welding main bars and reinforcing bars eachothr in method of making pillar and beam constructed with steel bars |
| JPS6080205A (en) * | 1983-10-08 | 1985-05-08 | Nippon Ferrite Ltd | Dust core |
-
1979
- 1979-08-01 JP JP9855579A patent/JPS5623713A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220378A (en) * | 1975-08-07 | 1977-02-16 | Kobe Steel Ltd | Method of welding main bars and reinforcing bars eachothr in method of making pillar and beam constructed with steel bars |
| JPS5855850B2 (en) * | 1975-08-07 | 1983-12-12 | 株式会社神戸製鋼所 | Kumitatetetsukinchiyu Haritai no Seizou Hounio Keruhokiyoukin Toshiyukin Tono Yousetsuhouhou |
| JPS6080205A (en) * | 1983-10-08 | 1985-05-08 | Nippon Ferrite Ltd | Dust core |
| JPH0414485B2 (en) * | 1983-10-08 | 1992-03-13 | Hitachi Ferrite Ltd |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE60017635D1 (en) | Process for the preparation of metallic powders, powders so produced and compacts containing these powders | |
| US5480471A (en) | Re-Fe-B magnets and manufacturing method for the same | |
| EP0523658B1 (en) | Method for making injection molded soft magnetic material | |
| JPS5623713A (en) | Manufacture of thin plate for magnetic head core | |
| JPS63199842A (en) | Electrode material | |
| JPS61179803A (en) | Method for producing ferromagnetic resin composition | |
| JPS57198240A (en) | Manufacture of wear resistant sintered alloy | |
| JPS56122105A (en) | Manufacture of permanent magnet | |
| JPS54130798A (en) | Radioactive waste solidifying method | |
| KR100262488B1 (en) | Manufacturing method of sintered iron-silicon lead magnetic alloy | |
| JPS56136957A (en) | Hydrogen occluding alloy and its manufacture | |
| JPH01184203A (en) | Alloy powder for injection molding | |
| JPS61213340A (en) | Manufacture of rare earth magnet | |
| JPS5375497A (en) | Fabrication of magnetic material | |
| Shi | SOLID STATE SINTERING. PT. 3. EXPERIMENTAL STUDY ON GRAIN AND PORE GROWTH, AND DENSIFICATION OF SUPERFINE ZIRCONIA POWDER COMPACTS | |
| JPS56158837A (en) | Manufacture of magnetic material | |
| US4509980A (en) | Electrical contact material comprising silver, cadmium oxide and cupric salt | |
| JP2000034505A (en) | SINTERING METHOD OF Fe-Si POWDER | |
| JPH06256912A (en) | Production of ultra-magnetostrictive sintered compact having high magnetostrictive property | |
| JPS56139657A (en) | Sintered fe-cr-co magnet alloy and its manufacture | |
| Yamashita et al. | Sintered Fe--Cr--Co Type Magnetic Alloy and Method for Producing Article Made Thereof | |
| Ivensen | Influence of Mechanical and Thermal Treatment of Powders on Sinterability Characteristics Resulting From the Method of Production. III. Increase in the Rate of Pore Volume Reduction in Temperature Jumps for Identical Initial Rates v/v in the Process of Sintering Powders of Different Origins | |
| JPS5585649A (en) | Sintered soft magnetic material | |
| JPS63111102A (en) | Production of sintered body | |
| Srikanth et al. | Effect of Binder Composition and Sintering Period on Properties of W--Co--Ni Heavy Alloys |