JPS5779144A - High permeability alloy - Google Patents

High permeability alloy

Info

Publication number
JPS5779144A
JPS5779144A JP55155316A JP15531680A JPS5779144A JP S5779144 A JPS5779144 A JP S5779144A JP 55155316 A JP55155316 A JP 55155316A JP 15531680 A JP15531680 A JP 15531680A JP S5779144 A JPS5779144 A JP S5779144A
Authority
JP
Japan
Prior art keywords
saturation
deterioration
flux density
magnetic flux
magnetostriction constant
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
JP55155316A
Other languages
Japanese (ja)
Inventor
Kiyotaka Yamauchi
Hajime Shinohara
Etsuo Yanagisawa
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP55155316A priority Critical patent/JPS5779144A/en
Publication of JPS5779144A publication Critical patent/JPS5779144A/en
Pending legal-status Critical Current

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  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE: To prevent the deterioration of the reproduction sensitivity and to enhance the maximum outut by adding a prescribed percentage of Si and Al to Fe and regulating the saturation magnetic flux density and saturation magnetostriction constant to prescribed ranges.
CONSTITUTION: An alloy ingot consisting of 8W10wt% Si, 4.5W6.5wt% Al and the balance Fe is mechanically worked, and the resulting sample is heat treated in an inert gas to provide ≥1T saturation magnetic flux density and ≤5×10-6 saturation magnetostriction constant. A magnetic head using this alloy undergoes no deterioration in the reproduction sensitivity and has a remarkably enhanced maximum output value.
COPYRIGHT: (C)1982,JPO&Japio
JP55155316A 1980-11-05 1980-11-05 High permeability alloy Pending JPS5779144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55155316A JPS5779144A (en) 1980-11-05 1980-11-05 High permeability alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55155316A JPS5779144A (en) 1980-11-05 1980-11-05 High permeability alloy

Publications (1)

Publication Number Publication Date
JPS5779144A true JPS5779144A (en) 1982-05-18

Family

ID=15603216

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55155316A Pending JPS5779144A (en) 1980-11-05 1980-11-05 High permeability alloy

Country Status (1)

Country Link
JP (1) JPS5779144A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0451871A2 (en) * 1990-04-13 1991-10-16 Hitachi Metals, Ltd. Flying-type composite magnetic head
US5207841A (en) * 1990-04-12 1993-05-04 Tdk Corporation Soft magnetic powder and magnetic shield composition

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271311A (en) * 1975-12-11 1977-06-14 Nippon Musical Instruments Mfg Method of producing ironnsiliconnaluminium alloy
JPS52111693A (en) * 1976-03-17 1977-09-19 Hitachi Denshi Ltd Magnetic head material
JPS5318422A (en) * 1976-08-03 1978-02-20 Furukawa Electric Co Ltd:The Production of high permeability alloy sheet
JPS5353799A (en) * 1976-10-26 1978-05-16 Nippon Gakki Seizo Kk Manufacturing process of magnetic materials
JPS53122800A (en) * 1977-03-31 1978-10-26 Nippon Gakki Seizo Kk Manufacturing means for magnetic material
JPS53147298A (en) * 1977-05-26 1978-12-21 Matsushita Electric Ind Co Ltd Method of manufacturing the magnetic core for magnetic head
JPS5541950A (en) * 1978-09-19 1980-03-25 Noboru Tsuya Thin alloy strip of high magnetic permeability and its manufacture

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5271311A (en) * 1975-12-11 1977-06-14 Nippon Musical Instruments Mfg Method of producing ironnsiliconnaluminium alloy
JPS52111693A (en) * 1976-03-17 1977-09-19 Hitachi Denshi Ltd Magnetic head material
JPS5318422A (en) * 1976-08-03 1978-02-20 Furukawa Electric Co Ltd:The Production of high permeability alloy sheet
JPS5353799A (en) * 1976-10-26 1978-05-16 Nippon Gakki Seizo Kk Manufacturing process of magnetic materials
JPS53122800A (en) * 1977-03-31 1978-10-26 Nippon Gakki Seizo Kk Manufacturing means for magnetic material
JPS53147298A (en) * 1977-05-26 1978-12-21 Matsushita Electric Ind Co Ltd Method of manufacturing the magnetic core for magnetic head
JPS5541950A (en) * 1978-09-19 1980-03-25 Noboru Tsuya Thin alloy strip of high magnetic permeability and its manufacture

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5207841A (en) * 1990-04-12 1993-05-04 Tdk Corporation Soft magnetic powder and magnetic shield composition
EP0451871A2 (en) * 1990-04-13 1991-10-16 Hitachi Metals, Ltd. Flying-type composite magnetic head

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