JPS5447616A - Amorphous alloy magnetic head core - Google Patents

Amorphous alloy magnetic head core

Info

Publication number
JPS5447616A
JPS5447616A JP11334777A JP11334777A JPS5447616A JP S5447616 A JPS5447616 A JP S5447616A JP 11334777 A JP11334777 A JP 11334777A JP 11334777 A JP11334777 A JP 11334777A JP S5447616 A JPS5447616 A JP S5447616A
Authority
JP
Japan
Prior art keywords
magnetic
amorphous alloy
magnetic head
operating gap
head core
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
Application number
JP11334777A
Other languages
Japanese (ja)
Inventor
Kazuo Shiiki
Hideo Fujiwara
Takehiko Watanabe
Takayuki Kumasaka
Sanehiro Kudo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11334777A priority Critical patent/JPS5447616A/en
Publication of JPS5447616A publication Critical patent/JPS5447616A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/147—Structure or manufacture of heads, e.g. inductive with cores being composed of metal sheets, i.e. laminated cores with cores composed of isolated magnetic layers, e.g. sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To improve abrasion resistance and magnetic characteristics and reduce aging by heat-treating an amorphous alloy in magnetic fields to aplly magnetic anisotropy and forming the magnetic head so that the angle assumed by its easy magnetization direction and operating gap becomes 0+ or -45 deg.. CONSTITUTION:The amorphous alloy 3 obtained by injecting raw material molten alloy onto a metal cylinder revolving at a high speed then solidifying the same through quenching is heated at above 250 deg.C between solenoid coils 1, 1 and is then acted with magnetic fields to induce magnetic anisotropy (arrow direction). Next, core pieces of a desired shape are so formed by blanking an operating gap 4 and a winding part 5 so that the angle assumed by the direction 6 of the operating gap and easy magnetization direction 7 becomes 0+ or -45 deg.. A suitable number of these are laminated, bonded and are applied with winding to form the magnetic head core.
JP11334777A 1977-09-22 1977-09-22 Amorphous alloy magnetic head core Pending JPS5447616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11334777A JPS5447616A (en) 1977-09-22 1977-09-22 Amorphous alloy magnetic head core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11334777A JPS5447616A (en) 1977-09-22 1977-09-22 Amorphous alloy magnetic head core

Publications (1)

Publication Number Publication Date
JPS5447616A true JPS5447616A (en) 1979-04-14

Family

ID=14609938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11334777A Pending JPS5447616A (en) 1977-09-22 1977-09-22 Amorphous alloy magnetic head core

Country Status (1)

Country Link
JP (1) JPS5447616A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059508A (en) * 1983-09-12 1985-04-05 Sony Corp Production of magnetic head
US4685012A (en) * 1984-11-27 1987-08-04 U.S. Philips Corporation Magnetic head with anisotropy in plane of core ports
EP0709828A4 (en) * 1994-05-09 1996-11-13 Sony Corp MAGNETIC HEAD AND MANUFACTURING METHOD

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4527243Y1 (en) * 1966-09-14 1970-10-21
JPS4730426U (en) * 1971-04-30 1972-12-06
JPS5173923A (en) * 1974-12-24 1976-06-26 Tohoku Daigaku Kinzoku Zairyo

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4527243Y1 (en) * 1966-09-14 1970-10-21
JPS4730426U (en) * 1971-04-30 1972-12-06
JPS5173923A (en) * 1974-12-24 1976-06-26 Tohoku Daigaku Kinzoku Zairyo

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6059508A (en) * 1983-09-12 1985-04-05 Sony Corp Production of magnetic head
US4685012A (en) * 1984-11-27 1987-08-04 U.S. Philips Corporation Magnetic head with anisotropy in plane of core ports
EP0709828A4 (en) * 1994-05-09 1996-11-13 Sony Corp MAGNETIC HEAD AND MANUFACTURING METHOD

Similar Documents

Publication Publication Date Title
JPS531614A (en) Induction heating equipment
US4475962A (en) Annealing method for amorphous magnetic alloy
Yamasaki et al. Large Barkhausen discontinuities in Co‐based amorphous wires with negative magnetostriction
JPS5447616A (en) Amorphous alloy magnetic head core
JPS5473217A (en) Movable coil type arc motor
JPS56257A (en) Amorphous alloy
JPS57132308A (en) Iron core for closed magnetic path type ignition coil
JPS55148718A (en) High-frequency hardening method provided with short-circuit coil
JPS526329A (en) Production process of grain oriented electrical steel sheet
JPS5361509A (en) Hardening method by high frequency heating
JPS5323818A (en) Production of rotor material for high speed hysteresis motors
ES479337A1 (en) Process for producing Ni-Fe magnetic tape cores
JPS5497504A (en) Amorphous alloy and method of making same
JPS56169722A (en) Manufacture of magnetic alloy
JPS5635705A (en) Production of magnetic alloy powder
SU379650A1 (en) METHOD OF OBTAINING CRYSTALLINE TEXTURE
JPS5477338A (en) Induction heating apparatus
JPH0421745B2 (en)
Ho et al. Effect of Rotating Magnetic Field Annealing on Induced Anisotropy in Amorphous Alloys
JPS5475014A (en) Voice coil type linear motor
JPS5625361A (en) Manufacture of magnet rotor
JPS55112141A (en) Composite magnetic wire material
JPS61227131A (en) Manufacture of fe-cr-co alloy as permanent magnet material
Kojima New High-Quality Permanent Magnet for Rotor--Anisotropic Manganese--Aluminum Magnet
JPS5337009A (en) Production of head core