KR850002628A - Magnetic Head for VTR - Google Patents

Magnetic Head for VTR Download PDF

Info

Publication number
KR850002628A
KR850002628A KR1019840004047A KR840004047A KR850002628A KR 850002628 A KR850002628 A KR 850002628A KR 1019840004047 A KR1019840004047 A KR 1019840004047A KR 840004047 A KR840004047 A KR 840004047A KR 850002628 A KR850002628 A KR 850002628A
Authority
KR
South Korea
Prior art keywords
magnetic head
vtr according
phase particles
vtr
phase
Prior art date
Application number
KR1019840004047A
Other languages
Korean (ko)
Other versions
KR890003180B1 (en
Inventor
다까시 다끼사와 (외 1)
Original Assignee
가다오까 가쓰다로오
알프스덴기 가부시기 가이샤
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 가다오까 가쓰다로오, 알프스덴기 가부시기 가이샤 filed Critical 가다오까 가쓰다로오
Publication of KR850002628A publication Critical patent/KR850002628A/en
Application granted granted Critical
Publication of KR890003180B1 publication Critical patent/KR890003180B1/en

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
    • 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
    • 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
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15358—Making agglomerates therefrom, e.g. by pressing
    • 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
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H01F1/15358—Making agglomerates therefrom, e.g. by pressing
    • H01F1/15366—Making agglomerates therefrom, e.g. by pressing using a binder

Abstract

내용 없음No content

Description

VTR용 자기 헤드Magnetic Head for VTR

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도 및 제2도는 본 발명의 코어재의 제1의 제조예를 나타내는 원리 설명도. 제3도는 제조된 코어재의 확대 단면도.1 and 2 are principle explanatory diagrams showing a first example of manufacture of the core material of the present invention. 3 is an enlarged cross-sectional view of the manufactured core material.

Claims (19)

비결정질, 결정질 또는 그들의 혼합상으로서 이루어진 초급냉 합금 매트릭스중에 제2상 입자적어도 1종을 3차원적으로 균일 분산시켜서 이루어진 복합재료에 의해 자기 회로의 적어도 일부를 구성시키는 것을 특징으로 하는 VTR용 자기헤드.Magnetic head for VTR comprising at least a part of the magnetic circuit by a composite material formed by uniformly dispersing at least one of the second phase particles in three-dimensionally in an ultra-cooled alloy matrix composed of amorphous, crystalline or mixed phases thereof. . 제1항에 있어서, 상기 초급냉 합금 매트릭스가 코발트를 주성분으로 하는 코발트계 비결정질 합금인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said supercooled alloy matrix is a cobalt-based amorphous alloy containing cobalt as a main component. 제1항에 있어서, 상기 초급냉 합금 매트릭스가 니켈을 주성분으로 하는 니켈계 비결정질 합금인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said supercooled alloy matrix is a nickel-based amorphous alloy containing nickel as a main component. 제1항에 있어서, 상기 초급냉 합금매트릭스가 철을 주성분으로 하는 철계 비결정질 합금인 것을 특징으로하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said supercooled alloy matrix is an iron-based amorphous alloy containing iron as a main component. 제1항에 있어서, 상기 제2상 입자가 탄화물인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said second phase particles are carbides. 제5항에 있어서, 상기 제2상 입자가 탄화 텅그스텐인 것을 특징으로 하는 VTR용 자기헤드.6. The magnetic head for VTR according to claim 5, wherein the second phase particles are tungsten carbide. 제1항에 있어서, 상기 제2상 입자가 탄소인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said second phase particle is carbon. 제1항에 있어서, 상기 제2상 입자가 산화물인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said second phase particle is an oxide. 제8항에 있어서, 상기 제2상 입자가 산화 크롬인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 8, wherein said second phase particle is chromium oxide. 제1항에 있어서, 상기 제2상 입자가 질화물인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said second phase particles are nitrides. 제1항에 있어서, 상기 제2상 입자가 실리케이트인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said second phase particles are silicates. 제1항에 있어서, 상기 제2상 입자가 금속인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein said second phase particle is a metal. 제1항에 있어서, 상기 초급냉합금 매트릭스중에 균일분산된 제2상 입자중 약 70% 이상의 제2상 입자의 입경이 약 0.1㎛미만인 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein a particle diameter of at least about 70% of the second phase particles in the second phase particles uniformly dispersed in the elementary cold alloy matrix is less than about 0.1 mu m. 제1항에 있어서, 상기 복합 재료가 박판부재로서 이루어지며, 이들 박판 부재가 소정매수 적층된 적층제에 의해 코어부가 구성되어 있는 것을 특징으로 하는 VTR용 자기헤드.The magnetic head for a VTR according to claim 1, wherein the composite material is made of a thin plate member, and the core portion is formed of a lamination agent in which these thin plate members are stacked in a predetermined number. 제1항에 있어서, 상기 복합재료가 상기 초급냉 합금 매트릭스를 구성하는 합금모재를 가열 용융한 후 그 합금모재가 응고하기 전에 불활성 가스로서 이루어진 분사매체와 함께 상기 제2상 입자를 상기 합금모재에 대하여 분사 분산시키고, 그후 냉각하여 제2상 입자를 균일분산시키고 그 후 냉각하여 제2상 입자를 균일분산된 잉곳을 만들고, 이 잉곳을 제2상 입자가 용해되지 않을 정도로 재용융되어 초급냉 응고시켜서 얻어진 복합재인 것을 특징으로 하는 VTR용 자기헤드.The method of claim 1, wherein the composite material is heated and melted the alloy base material constituting the supercooled alloy matrix, and before the alloy base material solidifies, the second phase particles are added to the alloy base material together with a spray medium made of an inert gas. Spray dispersing, and then cool to uniformly disperse the second phase particles, and then cool to form a uniformly dispersed ingot of the second phase particles, and the ingot is remelted to the extent that the second phase particles do not dissolve and are supercooled and solidified A magnetic head for a VTR, which is a composite material obtained by making a film. 제1항에 있어서, 상기 복합재료가 상기 초급냉 합금 매트릭스를 구성하는 합금모재를 상기 제2상입자가 용해하지 않을 정도로 가열 용융하고, 이 합금 모재가 응고하기 전에 불활성 가스로서 이루어진 분사매체와 함께 제2상 입자를 앙기 합금 모재를 향해 분사 분산시키고, 그 후 초급냉응고 시켜서 얻어진 복합재인 것으 특징으로 하는 VTR용 자기헤드.The method of claim 1, wherein the composite material is heated and melted to the extent that the second phase particles do not dissolve the alloy base material constituting the supercooled alloy matrix, and with the spray medium formed as an inert gas before the alloy base material solidifies A magnetic head for a VTR, which is a composite material obtained by spraying and dispersing a second phase particle toward an angi alloy base material and then supercooling and solidifying it. 제15항 또는 제16항에 있어서, 상기 제2상 입자가 상기 초급냉 합금 매트릭스에 대하여 습유성이 나쁜 금속인것을 특징으로 하는 VTR용 자기헤드.17. The magnetic head for a VTR according to claim 15 or 16, wherein said second phase particle is a metal having poor wettability with respect to said supercooled alloy matrix. 제17항에 있어서, 상기 제2상 입자가 산화크롬인 것을 특징으로 하는 VTR용 자기헤드.18. The magnetic head for VTR according to claim 17, wherein said second phase particle is chromium oxide. 제15항 또는 제16항에 있어서, 상기 초급냉 합금매트릭스중에 균일 분산된 제2상 입자중 약 70%이상의 제2상 입자의 입경이 약 0.1㎛ 미만인 것을 특징으로 하는 VTR용 자기헤드.17. The magnetic head for a VTR according to claim 15 or 16, wherein a particle diameter of at least about 70% of the second phase particles in the second phase particles uniformly dispersed in the supercooled alloy matrix is less than about 0.1 mu m. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840004047A 1983-08-27 1984-07-11 Magnetic head for video tap recorder KR890003180B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP58-155727 1983-08-27
JP58155727A JPS6050605A (en) 1983-08-27 1983-08-27 Magnetic head for video tape recorder
JP155727 1983-08-27

Publications (2)

Publication Number Publication Date
KR850002628A true KR850002628A (en) 1985-05-15
KR890003180B1 KR890003180B1 (en) 1989-08-25

Family

ID=15612142

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019840004047A KR890003180B1 (en) 1983-08-27 1984-07-11 Magnetic head for video tap recorder

Country Status (4)

Country Link
JP (1) JPS6050605A (en)
KR (1) KR890003180B1 (en)
DE (1) DE3431457A1 (en)
GB (1) GB2147608B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900007666B1 (en) * 1984-11-12 1990-10-18 알프스 덴기 가부시기가이샤 Amorphous alloy for use in magnetic heads
US5164025A (en) * 1988-11-02 1992-11-17 Alps Electric Co., Ltd. Soft magnetic alloy film and a magnetic head using such soft a magnetic alloy film
KR920001939B1 (en) * 1988-11-02 1992-03-07 알프스 덴기 가부시기가이샤 Soft magnetic compound metal and magnetic head thereof
KR920003999B1 (en) * 1989-03-08 1992-05-21 알프스 덴기 가부시기가이샤 Molted membrane of soft magnetics
GB2232165A (en) * 1989-03-22 1990-12-05 Cookson Group Plc Magnetic compositions
JP2635422B2 (en) * 1989-10-17 1997-07-30 アルプス電気株式会社 Magnetic head
DE69018422T2 (en) * 1989-12-28 1995-10-19 Toshiba Kawasaki Kk Iron-based soft magnetic alloy, its manufacturing process and magnetic core made from it.
JPH1196520A (en) * 1997-09-17 1999-04-09 Fujitsu Ltd Magnetic head and its production as well as magnetic recorder having the magnetic head
JP4842746B2 (en) * 2006-09-20 2011-12-21 オリンパス株式会社 Substrate transfer device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365994A (en) * 1979-03-23 1982-12-28 Allied Corporation Complex boride particle containing alloys
JPS5644752A (en) * 1979-09-21 1981-04-24 Hitachi Ltd Ferromagnetic amorphous alloy

Also Published As

Publication number Publication date
DE3431457C2 (en) 1987-12-23
DE3431457A1 (en) 1985-03-14
GB8421725D0 (en) 1984-10-03
JPS6050605A (en) 1985-03-20
GB2147608B (en) 1986-07-30
KR890003180B1 (en) 1989-08-25
GB2147608A (en) 1985-05-15

Similar Documents

Publication Publication Date Title
US4587097A (en) Homogeneous low melting temperature brazing filler metal for joining ferrous and non-ferrous alloys
US3970445A (en) Wear-resistant alloy, and method of making same
JPS5629639A (en) Amorphous rare earth magnets and producing thereof
KR850002628A (en) Magnetic Head for VTR
JPS5644752A (en) Ferromagnetic amorphous alloy
KR940016050A (en) Target for magneto-optical recording medium and manufacturing method thereof
KR950001790A (en) Permanent magnet
JPS56130449A (en) Amorphous cobalt alloy with very low magnetostriction and high permeability
US4279668A (en) Directionally solidified ductile magnetic alloy
DE2501370A1 (en) Cast article prodn. for high wear resistance surface mfr. - has process in which cast section surface is melted and alloyed before cooling process
JPS5633453A (en) Iron-base amorphous alloy having high magnetic flux density and small magnetostriction
EP0018942B1 (en) Ductile magnetic alloys, method of making same and magnetic body
US3012881A (en) Iron-base alloys
US3211592A (en) Method of manufacturing permanent magnets having large coercive force
KR850001302A (en) Manufacturing method of second phase particle dispersion type super cold alloy
KR840005748A (en) Method of adding an insoluble substance to at least partially liquid metal
US4690711A (en) Sintered compact and process for producing same
WS et al. Solidification structure of stellite overlayer formed on spheroidal graphite cast iron by plasma transferred arc process
KR970060272A (en) Manufacturing method of raw material powder for permanent magnet with good moldability
JPS60255256A (en) Casting method
JPS55145141A (en) Magnetic alloy with superior wear resistance
DE19751367A1 (en) Hard magnetic samarium-cobalt alloy powder produced cheaply
JPS61186415A (en) Improvement of surface material quality of metallic stock
JPS6274050A (en) Corrosion-resistant iron-base amorphous magnetic alloy
Sibley ADVANCED METALS

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee