JPH02125831A - Multilayer clad fe-ni series high magnetically permeable alloy and magnetic head - Google Patents
Multilayer clad fe-ni series high magnetically permeable alloy and magnetic headInfo
- Publication number
- JPH02125831A JPH02125831A JP63278432A JP27843288A JPH02125831A JP H02125831 A JPH02125831 A JP H02125831A JP 63278432 A JP63278432 A JP 63278432A JP 27843288 A JP27843288 A JP 27843288A JP H02125831 A JPH02125831 A JP H02125831A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- magnetic
- magnetic head
- clad
- series high
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 76
- 239000000956 alloy Substances 0.000 title claims abstract description 76
- 230000035699 permeability Effects 0.000 claims abstract description 61
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims abstract description 51
- 238000005253 cladding Methods 0.000 claims abstract description 18
- 239000010410 layer Substances 0.000 description 31
- 238000009413 insulation Methods 0.000 description 6
- 239000012212 insulator Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 238000000137 annealing Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- 229910010252 TiO3 Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Magnetic Heads (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
利用産業分野
この発明は、オーディオ、ＶＴＲなどの磁気記録再生装
置に用いられる磁気ヘッド等に利用される多層Ｆｅ−Ｎ
ｉ系高透磁率合金に係り、Ｆｅ−Ｎｉ系合金層間にクラ
ッドした酸化被膜あるいは酸化物絶縁膜を有し、磁気ヘ
ッドの組立てを容易にし、安定した特性を得ることがで
きる多層クラッドＦｅ−Ｎｉ系高透磁率合金と磁気ヘッ
ドに関する。DETAILED DESCRIPTION OF THE INVENTION Field of Application This invention is directed to multilayer Fe-N used in magnetic heads used in magnetic recording and reproducing devices such as audio and VTR.
Multilayer clad Fe-Ni, which is an i-based high magnetic permeability alloy, has a cladding oxide film or oxide insulating film between Fe-Ni alloy layers, making it easy to assemble a magnetic head and providing stable characteristics. Regarding high permeability alloys and magnetic heads.
背景技術
磁気ヘッドに用いられるＦｅ−Ｎｉ系高透磁率合金は、
良好な高周波特性を得るために、予め薄い板とし、複数
枚を積層して用いられる。BACKGROUND TECHNOLOGY The Fe-Ni high permeability alloy used in magnetic heads is
In order to obtain good high-frequency characteristics, thin plates are prepared in advance and a plurality of plates are laminated.
製造に際しては、薄板を所定の、通常は極めて小さな形
状に打ち抜いた後に、１０００°Ｃ以上の高温で磁性焼
鈍される。In manufacturing, a thin plate is punched into a predetermined, usually extremely small shape, and then magnetically annealed at a high temperature of 1000° C. or higher.
前記の小さく打ち抜かれた薄板を積層する作業は、薄板
が軟らかく、容易に折れ曲がったり、形状が変化したり
し易いため、高度の熟練を必要とし、また、材料の歩留
りを悪くしていた。The work of stacking the small punched thin plates described above requires a high level of skill because the thin plates are soft and easily bend or change shape, and this also results in poor material yield.
また、Ｆｅ−Ｎｉ系高透磁率合金の磁気特性は、歪みに
対する感受性が大きく、積層作業時に加えられた歪みに
よって、積層後のＦｅ−Ｎｉ系高透磁率合金の磁気特性
の劣化を招くことがあった。In addition, the magnetic properties of Fe-Ni-based high-permeability alloys are highly sensitive to strain, and strain applied during lamination may cause deterioration of the magnetic properties of Fe-Ni-based high-permeability alloys after lamination. there were.
さらに、従来は、薄板状のＦｅ−Ｎｉ系高透磁率合金間
を絶縁するために、積層作業中に絶縁体を挟んだり、ま
たは積層作業後に樹脂を注入する必要があり、組立て作
業が煩雑になる問題があった。Furthermore, in the past, in order to insulate between thin sheets of Fe-Ni high permeability alloy, it was necessary to sandwich an insulator during the lamination process or inject resin after the lamination process, making the assembly process complicated. There was a problem.
発明の目的
この発明は、層間絶縁した多層Ｆｅ−Ｎｉ系高透磁率合
金の改良を目的とし、磁気ヘッドの組立て工程を簡略化
でき、安定した品質の磁気ヘッドを得ることができる多
層Ｆｅ−Ｎｉ系高透磁率合金の提供を目的としている。Purpose of the Invention The present invention aims to improve a multilayer Fe-Ni high permeability alloy with interlayer insulation, which can simplify the assembly process of a magnetic head and provide a magnetic head with stable quality. The purpose is to provide high magnetic permeability alloys.
発明の概要
発明者は、層間絶縁した多層Ｆｅ−Ｎｉ系高透磁率合金
について種々検ｄ；ｊシた結果、Ｆｅ−Ｎｉ系高透磁率
合金表面に予め酸化被膜処理、あるいは酸化物絶縁膜を
施し、これらクラッドすることにより、良好な多層Ｆｅ
−Ｎｉ系高透磁率合金の製造が可能で、しかも耐磨耗性
を改善し、良好な磁気特性が得られることを知見した。Summary of the Invention As a result of various tests on interlayer insulated multilayer Fe-Ni high magnetic permeability alloys, the inventors discovered that the surface of Fe-Ni high magnetic permeability alloys should be treated with an oxide film or an oxide insulating film in advance. By coating and cladding, a good multilayer Fe
It has been found that it is possible to manufacture a -Ni-based high magnetic permeability alloy, and that it has improved wear resistance and good magnetic properties.
すなわち、この発明は、
複数層をクラッドにて一体化したＦｅ−Ｎｉ系高透磁率
合金からなり、合金層間にクラッドされた酸化被膜ある
いは酸化物絶縁膜を有することを特徴とする多層クラッ
ドＦｅ−Ｎｉ系高透磁率合金である。That is, the present invention provides a multilayer clad Fe-Ni alloy made of a Fe-Ni high permeability alloy in which multiple layers are integrated with a cladding, and characterized in that it has an oxide film or an oxide insulating film cladding between the alloy layers. It is a Ni-based high magnetic permeability alloy.
詳述すれば、Ｆｅ−Ｎｉ系高透磁率合金を熱処理して表
面に酸化被膜を生成させるか、５ｉ０２、Ａｌ２Ｏ３、
ＴｉＯ２、ＭｇＯ，ＺｒＯ２等の酸化物絶縁体を塗布な
どの成膜後、重ね合わせ、圧延することによって、層間
絶縁され、磁気特性の優れた多層のクラッド・Ｆｅ−Ｎ
ｉ系高透磁率合金が得られる。To be more specific, the Fe-Ni based high magnetic permeability alloy is heat treated to form an oxide film on the surface, 5i02, Al2O3,
After forming a film such as coating an oxide insulator such as TiO2, MgO, ZrO2, etc., stacking and rolling, a multilayer clad Fe-N with interlayer insulation and excellent magnetic properties is created.
An i-based high permeability alloy is obtained.
さらに、この発明は、磁気ヘッドコアを前記Ｆｅ−Ｎｉ
系高透磁率合金から構成したことを特徴とする磁気ヘッ
ドである。Furthermore, the present invention provides a magnetic head core made of the Fe-Ni.
The present invention is a magnetic head characterized by being constructed from a high magnetic permeability alloy.
発明の構成
Ｆｅ−Ｎｉ系高透磁率合金を高周波領域で使用する場合
には、該合金の電気抵抗が小さいために起きる渦電流損
失により磁気特性が劣化するのをなるべく少なくする目
的で、薄板としてこれを数枚積層して使用している。Structure of the Invention When a Fe-Ni based high magnetic permeability alloy is used in a high frequency region, it is used as a thin plate in order to minimize deterioration of magnetic properties due to eddy current loss caused by the low electrical resistance of the alloy. I am using several layers of these.
しかし、この積層する作業を簡略化するだけの目的で、
ただＦｅ−Ｎｉ系高透磁率合金をクラッドするだけでは
渦電流損失を小さくすることはできず、良好な高周波特
性は得られない。However, just for the purpose of simplifying this layering work,
However, eddy current loss cannot be reduced simply by cladding with a Fe--Ni high permeability alloy, and good high-frequency characteristics cannot be obtained.
渦電流損失を小さくするには、Ｆｅ−Ｎｉ系高透磁率合
金間を電気的に絶縁することが必要であり、この発明に
おいては、かかる絶縁を、Ｆｅ−Ｎｉ系高透磁率合金に
酸化被膜処理を施す方法、あるいは酸化物絶縁体を塗布
などの成膜法にて設け、これらＦｅ−Ｎｉ系高透磁率合
金をクラッドすることにより達成している。In order to reduce eddy current loss, it is necessary to electrically insulate the Fe-Ni high permeability alloy, and in this invention, such insulation is achieved by forming an oxide layer on the Fe-Ni high permeability alloy. This is achieved by applying a treatment or by forming an oxide insulator by a film forming method such as coating, and cladding with these Fe-Ni-based high magnetic permeability alloys.
この発明において、Ｆｅ−Ｎｉ系高透磁率合金の酸化被
膜処理は、大気中で熱処理してもよく、また、湿潤Ｈ２
中で熱処理してもよい。この場合の熱処理温度は８００
〜１２００°Ｃが望ましい。In this invention, the oxide film treatment of the Fe-Ni-based high magnetic permeability alloy may be performed by heat treatment in the atmosphere, or by wet H2
Heat treatment may be performed inside. The heat treatment temperature in this case is 800
~1200°C is desirable.
Ｆｅ−Ｎｉ系高透磁率合金の組成の違いにより、７５−
８５％Ｎｉ−Ｆｅまたは、Ｃｕ、 Ｍｏ、 Ｍｎ、 Ｃ
ｒ、 Ｗ、 Ｔｉ。Due to the difference in composition of Fe-Ni high permeability alloy, 75-
85%Ni-Fe or Cu, Mo, Mn, C
r, W, Ti.
Ｎｂの添加元素を１種または２種以上で１０％以下含有
するものが用いられる。A material containing one or more Nb additive elements in an amount of 10% or less is used.
また、この発明で用いられる酸化物絶縁層は、５ｉ０２
、ＭｇＯ，Ａｌ２Ｏ３、ＴｉＯ３、ＺｒＯ２等の酸化物
が好ましい。これら酸化物は、例えば、刷毛で塗布する
か、または電着法する等の方法によってＦｅ−Ｎｉ系高
透磁率合金表面に成膜処理される。Further, the oxide insulating layer used in this invention is 5i02
, MgO, Al2O3, TiO3, ZrO2 and the like are preferred. These oxides are formed into a film on the surface of the Fe--Ni high magnetic permeability alloy by, for example, applying with a brush or electrodeposition.
前記の酸化被膜あるいは酸化物絶縁体による絶縁層の厚
さは、最終製品ではなるべく薄い方が磁気特性上望まし
いが、目的とするクラッドＦｅ−Ｎｉ系高透磁率合金の
厚みに応じて、クラッドする前の各絶縁層の厚みを予め
設定しておく必要がある。酸化被膜あるいは酸化物絶縁
体による絶縁層の厚さは、０．１〜２０μｍ、好ましく
は０．５〜１０ｐｍがよい。The thickness of the insulating layer made of the oxide film or oxide insulator is preferably as thin as possible in the final product in terms of magnetic properties, but depending on the thickness of the target cladding Fe-Ni high permeability alloy, It is necessary to set the thickness of each previous insulating layer in advance. The thickness of the oxide film or the insulating layer made of the oxide insulator is preferably 0.1 to 20 μm, preferably 0.5 to 10 pm.
この発明において、例えば、３層のＦｅ−Ｎｉ系高透磁
率合金板を作成する場合、３枚のＦｅ−Ｎｉ系高透磁率
合金の全てに酸化被膜あるいは酸化物による絶縁処理を
してもよく、また、３層のうち中央の一枚だけに酸化被
膜あるいは酸化物による絶縁処理をして、その両面に絶
縁処理を施していないＦｅ−Ｎｉ系高透磁率合金をあわ
せてクラッドするのもよい。In this invention, for example, when creating a three-layer Fe-Ni high permeability alloy plate, all three Fe-Ni high permeability alloy plates may be subjected to insulation treatment with an oxide film or an oxide. It is also a good idea to insulate only the central one of the three layers with an oxide film or oxide, and then clad both sides with Fe-Ni high magnetic permeability alloy that is not insulated. .
クラッドする材料間に酸化被膜あるいは異物が存在すれ
ば、通常はクラッド時の密着性が悪くなるが、この発明
においては、使用目的上、必ずしも完全に密着する必要
はなく、後工程の打ら抜きあるいは熱処理において、Ｆ
ｅ−Ｎｉ系高透磁率合金どうしが剥離しさえしなければ
よく、実用上十分な磁気特性を有する多層Ｆｅ−Ｎｉ系
高透磁率合金が得られる。If there is an oxide film or foreign matter between the cladding materials, the adhesion during cladding will usually deteriorate, but in this invention, for the purpose of use, it is not necessary to have complete adhesion, and the punching in the subsequent process Or in heat treatment, F
It is only necessary that the e-Ni high magnetic permeability alloys do not separate from each other, and a multilayer Fe-Ni high magnetic permeability alloy having practically sufficient magnetic properties can be obtained.
さらに、用いられる絶縁層４Ｊの種類によっては、圧延
時に必ずしもＦｅ−Ｎｉ系高透磁率合金と同様には均一
に圧延されず、部分的に絶縁層がなくなり、Ｆｅ−Ｎｉ
系高透磁率合金が圧接されて電気的導通を生ずる場合も
あるが、この発明の場合は層間絶縁は必ずしも完全でな
くても差し支えなく、後述するようにすぐれた磁気特性
が得られる。Furthermore, depending on the type of insulating layer 4J used, it may not necessarily be rolled as uniformly as Fe-Ni high permeability alloys during rolling, and the insulating layer may partially disappear, resulting in Fe-Ni
In some cases, high permeability alloys are pressure-welded to produce electrical continuity, but in the case of the present invention, interlayer insulation does not necessarily have to be perfect, and excellent magnetic properties can be obtained as described later.
例えば、板厚０．１ｍｍのＦｅ−Ｎｉ系高透磁率合金を
６枚積層して使用した場合、この発明によると、全厚さ
が０．６ｍｍの６層クラッド・Ｆｅ−Ｎｉ系高透磁率合
金で置き換えることも可能であり、また、全厚さが０．
３ｍｍの３層クラッド・Ｆｅ−Ｎｉ系高透磁率合金を２
枚重ねした構成と置き換えることも可能であこの発明に
おいて、磁気ヘッドは、前記Ｆｅ−Ｎｉ系高透磁率合金
にて磁気へソドコアを形成すればよく、公知のいかなる
磁気ヘッドコアの構成でも適用できる。For example, when six Fe-Ni high permeability alloys with a plate thickness of 0.1 mm are stacked and used, according to the present invention, a six-layer cladding with a total thickness of 0.6 mm and a Fe-Ni high permeability It is also possible to replace it with an alloy, and the total thickness is 0.
3mm three-layer clad Fe-Ni high permeability alloy
It is also possible to replace the magnetic head with a stacked structure. In the present invention, the magnetic head may have a magnetic heel core made of the Fe--Ni alloy with high magnetic permeability, and any known magnetic head core structure can be applied.
発明の効果
以上のように、この発明による酸化被膜あるいは酸化物
絶縁体による層間絶縁された多層クラッド、Ｆｅ−Ｎｉ
系高透磁率合金は、従来の樹脂によって絶縁された単板
Ｆｅ−Ｎｉ系高透磁率合金の積層構造とほぼ同等の磁気
特性が得られる。Effects of the Invention As described above, the multilayer cladding with interlayer insulation using an oxide film or an oxide insulator according to the present invention, Fe-Ni
The high magnetic permeability alloy can provide almost the same magnetic properties as the conventional laminated structure of a single plate Fe--Ni high magnetic permeability alloy insulated with a resin.
この発明による多層クラッド・Ｆｅ−Ｎｉ系高透磁率合
金を用いることにより、磁気ヘッドの組立て作業が極め
て簡略化される。By using the multilayer clad Fe--Ni high permeability alloy according to the present invention, the assembly work of the magnetic head is extremely simplified.
また、従来の積層作業時に加わる加工歪みなどの磁気特
性を劣化させる要因が除去されるので、安定した特性を
有する磁気ヘッドが得られる。Furthermore, since factors that degrade magnetic properties, such as processing strain applied during conventional lamination work, are removed, a magnetic head with stable properties can be obtained.
さらに、クラッド層間に存在する絶縁層は酸化物で硬い
ため、磁気ヘッドの耐磨耗性の向上にも極めて治効であ
る。Furthermore, since the insulating layer existing between the cladding layers is made of oxide and is hard, it is extremely effective in improving the wear resistance of the magnetic head.
実施例
実施例１゜
Ｆｅ−８０ｗｔ％Ｎｉ系高透磁率合金からなる板厚０．
３３ｍｍの板を３枚用意し、そのうち−枚は１０００°
Ｃで湿潤Ｈ２中（露点＋２３°Ｃ）で酸化被膜処理し、
両面に酸化膜を生成した。この時の酸化被膜の厚さは約
１ｐｍであった。Examples Example 1゜A plate made of Fe-80wt%Ni-based high magnetic permeability alloy with a thickness of 0.
Prepare three 33mm plates, one of which has an angle of 1000°.
Oxide film treatment in wet H2 (dew point +23°C) with
An oxide film was formed on both sides. The thickness of the oxide film at this time was about 1 pm.
この酸化被膜処理をした板を中央に、他の２枚を上下に
して、全体の厚さ０．３ｍｍとなるまで冷間圧延し、３
層クラッド・Ｆｅ−Ｎｉ系高透磁率合金を作製した。This oxide film-treated plate was placed in the center and the other two sheets were placed one above the other, and cold-rolled until the total thickness reached 0.3 mm.
A layer clad Fe-Ni alloy with high magnetic permeability was fabricated.
このＦｅ−Ｎｉ系高透磁率クラッド合金から磁気測定用
リングを打ち抜き、１１００°Ｃで３時間の磁性焼鈍を
施した後、磁気特性を測定した。A ring for magnetic measurement was punched out of this Fe-Ni-based high magnetic permeability clad alloy, subjected to magnetic annealing at 1100°C for 3 hours, and then its magnetic properties were measured.
また、前記と同様の条件で製造したＦｅ−Ｎｉ系高透磁
率合金を０．１ｍｍとなるまで圧延し、打ち抜き、磁性
焼鈍も同様の処理を行って比較用試料とした。In addition, a Fe-Ni-based high magnetic permeability alloy produced under the same conditions as above was rolled to a thickness of 0.1 mm, punched, and magnetically annealed in the same manner to obtain a comparative sample.
磁気特性の測定は、３層クラッド・Ｆｅ−Ｎｉ系高透磁
率合金の場合は、絶縁紙を挾んで３層クラッドの２枚重
ねとし、０．１ｍｍの比較用試料の場合は、単板のＦｅ
−Ｎｉ系高透磁率合金間を樹脂で絶縁して６枚重ねとし
た。In the case of a 3-layer clad Fe-Ni high permeability alloy, the magnetic properties were measured by stacking two 3-layer clad sheets with insulating paper in between, and in the case of a 0.1 mm comparison sample, a single plate was measured. Fe
-Ni-based high magnetic permeability alloys were insulated with resin, and six layers were stacked.
第１表
第１表より明らかな如く、この発明による３層りラノド
二枚重ねのＦｅ−Ｎｉ系高透磁率合金は、従来の絶縁紙
で隔てられた単板Ｆｅ−Ｎｉ系高透磁率合金とほぼ同等
の良好な磁気特性を示し、磁気ヘッド用として十分実用
性のあることがわかる。Table 1 As is clear from Table 1, the three-layer laminated two-layer Fe-Ni high permeability alloy according to the present invention is almost as good as the conventional single-layer Fe-Ni high permeability alloy separated by insulating paper. It can be seen that it shows equally good magnetic properties and is sufficiently practical for use in magnetic heads.
実施例２゜
Ｆｅ−８０ｗｔ％Ｎｉ系Ｆｅ−Ｎｉ系高透磁率合金から
なる板厚０．５ｍｍの板６枚を用意し、そのうち二枚に
ついては両面にＭｇＯを電着塗装した。Example 2 Six plates of 0.5 mm thick made of Fe-80wt%Ni-based Fe-Ni-based high magnetic permeability alloy were prepared, and MgO was electrocoated on both sides of two of the plates.
まず、第一段階として電着塗装した板を一枚中央にして
、塗装していない板を−り下にして重ね合わせ、板厚０
．６ｍｍまで圧延し、２枚の３層クラッド・Ｆｅ−Ｎｉ
系高透磁率合金を作製した。First, as a first step, stack one electrodeposited board in the center and the unpainted board at the bottom, so that the board thickness is 0.
．． Rolled to 6mm and made two 3-layer clad Fe-Ni
A high magnetic permeability alloy was fabricated.
次に、この３層クラッド・Ｆｅ−Ｎｉ系高透磁率合金の
一報の片面にＭｇＯを電着塗装し、電着塗装した面と他
の一枚の３層クラッド・Ｆｅ−Ｎｉ系高透磁率合金を重
ね合わせ、０．６ｍｍ迄冷間圧延して６層クラッド・Ｆ
ｅ−Ｎｉ系高透磁率合金とした。Next, MgO is electrodeposited on one side of this 3-layer clad Fe-Ni high permeability alloy, and the electrodeposited surface and the other 3-layer clad Fe-Ni high permeability alloy are coated with MgO. The alloys are layered and cold rolled to 0.6mm to form a 6-layer clad F.
An e-Ni-based high magnetic permeability alloy was used.
この６層クラッド・Ｆｅ−Ｎｉ系高透磁率合金を、実施
例１と同様に打ち抜き加工後、磁性焼鈍を施した。This 6-layer clad Fe-Ni high magnetic permeability alloy was punched out in the same manner as in Example 1, and then subjected to magnetic annealing.
また、比較用として同一のＦｅ−８０ｗｔ％Ｎｉ系Ｆｅ
−Ｎｉ系高透磁率合金からなる板厚０．５ｍｍの板を０
．１ｍｍまで圧延上同様に打ち抜き、磁性焼鈍を行って
磁気測定用試料を作製した。Also, for comparison, the same Fe-80wt%Ni-based Fe
-0.5 mm thick plate made of Ni-based high magnetic permeability alloy
．． A sample for magnetic measurement was prepared by rolling and punching to a thickness of 1 mm, followed by magnetic annealing.
磁気測定は６層クラッド・Ｆｅ−Ｎｉ系高透磁率合金は
一枚で、比較用試料は実施例１と同様にして０．１ｍｍ
の板を６枚重ねて行った。その結果を第２表に示す。Magnetic measurement was carried out using a single sheet of 6-layer clad Fe-Ni high permeability alloy, and the comparative sample was 0.1 mm in the same manner as in Example 1.
This was done by stacking 6 boards. The results are shown in Table 2.
第２表
第２表より明らかな如く、この発明による６層クラッド
のＦｅ−Ｎｉ系高透磁率合金は、従来の絶縁紙で隔てら
れた単板Ｆｅ−Ｎｉ系高透磁率合金とほぼ同等の良好な
磁気特性を示し、磁気ヘッド用として十分実用性のある
ことがわかる。Table 2 As is clear from Table 2, the six-layer clad Fe-Ni high permeability alloy according to the present invention has almost the same level of performance as the conventional single-layer Fe-Ni high permeability alloy separated by insulating paper. It can be seen that it exhibits good magnetic properties and is sufficiently practical for use in magnetic heads.
実施例３
実施例２で得られたこの発明による６層クラッドのＦｅ
−Ｎｉ系高透磁率合金及び従来方法で隔てられた単板Ｆ
ｅ−Ｎｉ系高透磁率合金を用いて、磁気ヘッド用ラミネ
ートコアを作製し、磁気ヘッドを組み立てた。Example 3 Fe of 6-layer cladding according to the present invention obtained in Example 2
-Ni-based high permeability alloy and veneer F separated by conventional method
A laminate core for a magnetic head was produced using an e-Ni-based high permeability alloy, and a magnetic head was assembled.
この発明による６層クラッド合金を用いた場合、磁気ヘ
ッドの組み立て時間を大幅に短縮でき、磁気ヘッド磨耗
量が従来のＦｅ−Ｎｉ系合金の約１７２〜２／３と減少
した。When the six-layer cladding alloy according to the present invention was used, the time for assembling the magnetic head could be significantly shortened, and the amount of wear on the magnetic head was reduced to about 172 to 2/3 that of conventional Fe-Ni alloys.
Claims (1)
合金からなり、合金層間にクラッドされた酸化被膜ある
いは酸化物絶縁膜を有することを特徴とする多層クラッ
ドＦｅ−Ｎｉ系高透磁率合金。 ２ 磁気ヘッドコアが請求項第１項記載のＦｅ−Ｎｉ系高透
磁率合金から構成されたことを特徴とする磁気ヘッド。[Claims] 1. A multilayer clad Fe comprising a Fe-Ni-based high magnetic permeability alloy in which multiple layers are integrated with a cladding, and having an oxide film or an oxide insulating film cladding between the alloy layers. -Ni-based high magnetic permeability alloy. 2. A magnetic head, wherein the magnetic head core is made of the Fe-Ni high permeability alloy according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63278432A JPH0689425B2 (en) | 1988-11-01 | 1988-11-01 | Multilayer clad Fe-Ni system high magnetic permeability material and magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63278432A JPH0689425B2 (en) | 1988-11-01 | 1988-11-01 | Multilayer clad Fe-Ni system high magnetic permeability material and magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02125831A true JPH02125831A (en) | 1990-05-14 |
| JPH0689425B2 JPH0689425B2 (en) | 1994-11-09 |
Family
ID=17597265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63278432A Expired - Fee Related JPH0689425B2 (en) | 1988-11-01 | 1988-11-01 | Multilayer clad Fe-Ni system high magnetic permeability material and magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0689425B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060284C (en) * | 1991-05-24 | 2001-01-03 | 阿鲁普斯电气株式会社 | Magnetic core device and method for producing same |
| CN111448611A (en) * | 2017-11-22 | 2020-07-24 | 株式会社Uacj | Aluminum alloy substrate for magnetic disk, method for producing same, and magnetic disk using same |
-
1988
- 1988-11-01 JP JP63278432A patent/JPH0689425B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060284C (en) * | 1991-05-24 | 2001-01-03 | 阿鲁普斯电气株式会社 | Magnetic core device and method for producing same |
| CN111448611A (en) * | 2017-11-22 | 2020-07-24 | 株式会社Uacj | Aluminum alloy substrate for magnetic disk, method for producing same, and magnetic disk using same |
| CN111448611B (en) * | 2017-11-22 | 2021-11-19 | 株式会社Uacj | Aluminum alloy substrate for magnetic disk, method for producing same, and magnetic disk using same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0689425B2 (en) | 1994-11-09 |
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