JPS61204909A - Composite magnetic material - Google Patents

Composite magnetic material

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Publication number
JPS61204909A
JPS61204909A JP4469485A JP4469485A JPS61204909A JP S61204909 A JPS61204909 A JP S61204909A JP 4469485 A JP4469485 A JP 4469485A JP 4469485 A JP4469485 A JP 4469485A JP S61204909 A JPS61204909 A JP S61204909A
Authority
JP
Japan
Prior art keywords
magnetic metal
magnetic
metal plate
core block
bonded
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
JP4469485A
Other languages
Japanese (ja)
Inventor
Atsushi Onoe
篤 尾上
Atsushi Watanabe
温 渡辺
Kazuhiko Sato
佐藤　一比古
Satoshi Miyaguchi
敏 宮口
Hiroyuki Oota
啓之 太田
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP4469485A priority Critical patent/JPS61204909A/en
Publication of JPS61204909A publication Critical patent/JPS61204909A/en
Pending legal-status Critical Current

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  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To obtain a title material having improved mass-productivity, low cost and steady bonding strength by forming a non-magnetic metal film on both or either one of the opposed surfaces of a first magnetic metal plate or a second magnetic metal plate different from the first magnetic metal plate, and bonding the first and second metal plates by means of a wax material of the metal system. CONSTITUTION:The opposed surfaces to be bonded of a first magnetic metal plate 3 made of polycrystalline ferrite and a second magnetic metal plate 4 made of monocrystalline Sendust are mirror polished 7, 8. Non-magnetic metal films 5, 5 of V, Cr or Ti having a thickness of 1-2mu are formed on the mirror polished 7, 8 bonding surfaces. Wax 6 of silver or Sn-Pb is placed between the non-magnetic metal films 5, 5, and the first magnetic metal plate 3 and the second magnetic metal plate 4 are bonded, thereby obtaining a complex-type magnetic core block 9. This magnetic core block 9 is cut into the predetermined strip-like shape, the front surface is mirror polished in arc so as to form opposed two core block halves 2A, 2B, a winding slot 10 is formed in either one core block half, and the two core block halves are bonded, using a bonding agent, thereby to obtain a magnetic head 1.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、例えばＶ、Ｔ、Ｒ用等の磁気へノドとして
最適な複合型磁性材料に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a composite magnetic material suitable for use as a magnetic head for V, T, R, etc., for example.

〔従来の技術〕[Conventional technology]

近年、例えばＶ、Ｔ、Ｒのように磁気記録の高密度化に
伴い、メタル系の高保持力記録媒体が開発されてきた。In recent years, metal-based high coercivity recording media, such as V, T, and R, have been developed as the density of magnetic recording increases.

このような高保持力記録媒体に記録を行おうとする場合
、フェライトの飽和磁束密度が５０００ＣＧ）程度であ
るため、保持力が１０００ＣＯｅ）を超える媒体に充分
な記録を行うのは適当ではない。斯くの如きフェライト
が有する問題点を解決すべく飽和磁束密度の高い金属磁
性材ｌ′４、例えばセ゛／ダストを用いて記録をｊｉ・
）ことが試みられているが、これは高周波領域における
渦電流（４失のため乙こ再７を一感度が低トし”ζいた
。When attempting to record on such a high coercivity recording medium, since the saturation magnetic flux density of ferrite is approximately 5000CG), it is not appropriate to perform sufficient recording on a medium with a coercivity exceeding 1000COe). In order to solve the problems that ferrite has, recording is carried out using a metallic magnetic material l'4 with a high saturation magnetic flux density, such as carbon/dust.
), but this resulted in a decrease in sensitivity due to eddy currents (4 losses) in the high frequency region.

どの欠点４解決ゼんとする方策として、第５図に示４−
ようにセ〉・ダストの磁性金属薄板ａを他の磁性金属薄
板１）としてのフェラ−（１−で挾み込んだザンドウイ
、チ構造とすることにより高周波領域での金属磁性材料
の磁気特性を捕信し、４ｆ＋、斗感度の向トを図ってい
た。（１，か１−７、この構造の複合型磁性材料は、セ
ンダスｉのような磁性金属薄（］又を、之とは別種の磁
ｆ目；４料としてのフｔライｌ〜のような磁性金属：’
ｉｌＪ板すで挾み込む工程等の手間を要するから、量産
性が著しく低下し２、コスト高となっていた。Figure 5 shows how to resolve all of the drawbacks 4-4-
The magnetic properties of the metal magnetic material in the high frequency range can be improved by forming a structure in which the magnetic metal thin plate a of dust is sandwiched between other magnetic metal thin plates 1). (1, or 1-7) A composite magnetic material with this structure is a magnetic metal thin film like Sendas I, which is different from the Magnetic metal such as 4 materials:'
Since the step of sandwiching between the ilJ plates and the like is time-consuming, mass productivity is significantly reduced2 and costs are high.

また磁性金属材料としてのセンダス［・を接合剤士し”
ζ例えば恨ｌ′：１つで接合した場合にはかなりの接合
強度を得ることができるが、別の磁性金属材料としての
フェライト同志を銀ロウで接合することは困難とされて
いる。よってセンダストとフェライトを恨【コラで接合
するご、とはかなり困雑とされている。We also use Sendas as a magnetic metal material as a bonding agent.”
ζ For example, when bonding only one material, a considerable bonding strength can be obtained, but it is difficult to bond ferrite, which is another magnetic metal material, with silver solder. Therefore, it is considered to be quite complicated to join sendust and ferrite together.

〔発明の目的〕[Purpose of the invention]

本発明は上述の如き点に鑑みてなされたものでありその
目的とするところは量産性が向上してコスト安となり、
しかも異種の金属磁性材料相斤の接合強度が堅牢な複合
型磁性材料を提供するのにある。The present invention has been made in view of the above-mentioned points, and its purpose is to improve mass productivity and reduce costs.
Moreover, it is possible to provide a composite magnetic material with strong bonding strength between different types of metal magnetic materials.

〔実施例］ 以］ζ本発明４第１図乃至第４図に従って複合型磁性材
料として磁気ヘットを−・実施例として説明する。[Example] Hereinafter, a magnetic head as a composite magnetic material will be described as an example according to Figs. 1 to 4 of the present invention.

ｌは磁気ヘッドであり、この（〃気−・ソド１はコア半
体２Ａ、２Ｂ相互を接着剤、または接合剤を用いて接合
される。３はコア半体２Ａ、２Ｂを形成すべき第１の磁
性金属板であり、例えば多結晶フェライトが用いられる
。４は該第１の磁性金属板に対して接合されるべき磁気
特性が良好な異種の高１率の磁性金属板であり、例えば
単結晶センダストが用いられる。５は接合すべき第１の
磁１）［金属板；３とし、ての前記ソＬライトと、第２
の磁ｔ’ｌ−金属板４としての単結晶センダストの対向
面に形成された非磁性金属膜であり、この非磁性金属＋
１９５と１〜では例えば■、Ｃｒ、Ｔｉ等の遷移元素系
列に属する元素が用いられる。そして、この非何に性金
属膜５の形成手段としては１、例えば芋着、スバ７・夕
等により形成され、２その膜厚は磁気抵抗を考慮し−と
１〜２μ以下である。６は第１１．第２の磁性金属材料
３，４吉・（〕ての多結晶フェライ［と、１イ、結晶セ
ンダストと＋接合するために前記Ｊｌ’ｌ外磁属膜５，
５間に介装された接合剤と１．・ての銀口・うであり１
、二の恨［ｊつ６ば非磁性金属膜５゜５と溶融性（いわ
ゆるぬれ性）が良いものが使用される。1 is a magnetic head, and the core halves 2A and 2B are bonded together using an adhesive or a bonding agent. 3 is a magnetic head that is to form the core halves 2A and 2B. A magnetic metal plate 1 is made of, for example, polycrystalline ferrite. A magnetic metal plate 4 is a different type of magnetic metal plate with good magnetic properties and has a high coefficient of 1, which is to be bonded to the first magnetic metal plate. Single-crystal sendust is used. 5 is the first magnetic metal plate to be bonded;
The magnetic t'l- is a non-magnetic metal film formed on the opposing surface of the single crystal sendust as the metal plate 4, and this non-magnetic metal +
In 195 and 1~, for example, elements belonging to the transition element series such as ■, Cr, and Ti are used. The method for forming the non-conductive metal film 5 is as follows: 1. It is formed by, for example, a method such as Imo-zuki, Suba 7/Yu, etc., and 2. The thickness of the film is 1 to 2 μm or less in consideration of magnetic resistance. 6 is the 11th. The second magnetic metal material 3, 4, () polycrystalline ferrite, 1, the Jl'l outer magnetic metal film 5,
A bonding agent interposed between 5 and 1.・Teno Ginguchi・Udeari 1
Second, a non-magnetic metal film 5.5 and one having good melting properties (so-called wettability) are used.

↓ソート、磁気ヘッド１を製造する場合４工程順に説明
する。↓In the case of sorting and manufacturing the magnetic head 1, the four steps will be explained in order.

先ず、第１工程とし２て、コアブロック半休２Ａ、２１
３を接合ずべき、多結晶フエラ・イトからなる第１の磁
性金属板３と１．即結晶センダストからなる第２の硼（
１金匡扱４．！２の接合ずべきに、１向面を鏡面研磨７
，８する（第１図参照）。First, as the first step 2, core block half-vacation 2A, 21
A first magnetic metal plate 3 made of polycrystalline ferrite to be bonded to 1. A second porcelain made of ready-crystalline sendust (
1.Kinkon treatment4. ! Mirror polishing 7 on one side to join 2
, 8 (see Figure 1).

次いで第２工程として、第１の磁性金属板３と１、第２
の磁性金属板４との対向した前記鏡面研磨７．８した接
合面に非磁性金属１１り５，５を１〜２μの膜厚で形成
する（第２図参照）。Next, as a second step, the first magnetic metal plates 3 and 1 and the second
A non-magnetic metal layer 5, 5 with a thickness of 1 to 2 .mu.m is formed on the mirror-polished joint surface 7.8 facing the magnetic metal plate 4 (see FIG. 2).

さらに第３工程として該非（■性金属膜５，５間乙ご接
合剤としての銀口°つ６毫介装して、杓８５０“Ｃ程度
の加熱温度により、多結晶フエラ・イ）・かうなる第１
の磁性金属板３と、中結晶センダス１からなる第２の磁
性金属板４とを接合することにより一体化した複合形の
磁性コアブロック９を得る（第３図参照）。Furthermore, as a third step, 6 silver holes as a bonding agent are interposed between the metal films 5 and 5, and polycrystalline ferrite is heated at a heating temperature of about 850"C. Become the first
By joining the magnetic metal plate 3 and the second magnetic metal plate 4 made of medium crystal sendasu 1, an integrated composite magnetic core block 9 is obtained (see FIG. 3).

その後、この磁性」アブロック９を所定の短冊状に切断
してフ「２ント而（テープの摺接面）を円弧状に鏡面研
磨して対向する２つのコアブロック半休２Ａ、２Ｂを形
成し、何れか一方のコ“アブロック半休２Ａ、２Ｂのう
ち、例えばコアプロ、り１′７体２　Ｂに巻線を施こす
ための巻線溝１０を形成し、２つのコアブロック半休２
Ａ、２Ｂを金属系１１つ材、無機系又は有機系の接着剤
等の接合剤を用いて接合することにより完成品としての
磁気ヘッド１を得る（第４図参照）。After that, this magnetic block 9 is cut into a predetermined strip shape, and the two ends (sliding surface of the tape) are mirror-polished into an arc shape to form two opposing core block halves 2A and 2B. For example, a winding groove 10 for winding is formed in the core block half-hole 2A, 2B of either one of the core block half-holes 2A, 2B.
By joining A and 2B using a metal material or a bonding agent such as an inorganic or organic adhesive, a magnetic head 1 as a completed product is obtained (see FIG. 4).

本発明の一実施例は上述のような構成からなり、多結晶
フェライトからなる第１の磁性金属板３と、之に接合す
べき単結晶センダストからなる第２の磁性金属板４との
接合すべき対向面に遷移元素系列に属するＶ　％　Ｃｒ
　、Ｔ　Ｉのうちの何れかの元素からなる非磁性金属膜
５，５を形成したので接合剤としての銀ロウ６が非磁性
金属膜５，５と均一に且つ強固に溶融して付着強度が増
すため、多結晶フェライトからなる第１の磁性金属板３
と単結晶センダストからなる第２の磁性金属板とを結合
力が強く接合できる。One embodiment of the present invention has the above-described configuration, and the first magnetic metal plate 3 made of polycrystalline ferrite and the second magnetic metal plate 4 made of single crystal sendust to be bonded together are bonded together. V%Cr belonging to the transition element series on the opposite plane
Since the non-magnetic metal films 5, 5 made of any of the elements of , T, and I are formed, the silver solder 6 as a bonding agent is uniformly and firmly melted into the non-magnetic metal films 5, 5, and the adhesion strength is increased. The first magnetic metal plate 3 made of polycrystalline ferrite is
and the second magnetic metal plate made of single crystal sendust can be bonded with a strong bonding force.

また非磁性金属板５は１〜２μの非常に薄い膜厚である
から、磁気抵抗は少ない。Furthermore, since the non-magnetic metal plate 5 has a very thin film thickness of 1 to 2 μm, its magnetic resistance is low.

なお上記実施例では、第１の磁性金属板３として多結晶
フェライトを、また第２の磁性金属板４として単結晶セ
ンダストをそれぞれ用いているが、第１の磁性金属板３
として他の酸化物磁性材料を、用い、しかも第２の磁性
金属板４として単結晶センダストのほか、他の金属磁性
材料を用いても良い。In the above embodiment, polycrystalline ferrite is used as the first magnetic metal plate 3, and single crystal sendust is used as the second magnetic metal plate 4, but the first magnetic metal plate 3
Other oxide magnetic materials may be used as the second magnetic metal plate 4, and other metal magnetic materials other than single crystal sendust may be used as the second magnetic metal plate 4.

゛　また接合剤として恨ロウの他、非磁性金属膜５．５
に対して溶融性が良く、強度の結合力を発揮し得るよう
な他の金属系コラ材、例えばｐｂ−ｓｎを用いても良い
。゛ In addition to wax as a bonding agent, a non-magnetic metal film 5.5
Other metallic collage materials such as pb-sn, which have good meltability and can exhibit strong bonding strength, may also be used.

〔発明の効果〕〔Effect of the invention〕

上述のように本発明は、フェライトのような磁性金属板
と該磁性金属板とは種類の異なるセンダストのような磁
性金属板の対向両面又は片面に接合剤としての金属系ロ
ウ剤と溶融性が良い、非磁性金属膜を形成したので、種
類の異なる前記磁性金属板相互を接合強度が強固に接合
でき、高周波領域における渦電流損失が低減され、再生
感度が向上される。As described above, the present invention provides a magnetic metal plate such as ferrite and a magnetic metal plate different in type from the magnetic metal plate such as sendust, and a metal brazing agent as a bonding agent and a melting agent on opposite surfaces or one side of the magnetic metal plate. Since a good non-magnetic metal film is formed, the magnetic metal plates of different types can be firmly bonded to each other, eddy current loss in the high frequency region is reduced, and reproduction sensitivity is improved.

また本発明は従来のように、単結晶センダストのような
磁性金属薄板を多結晶フェライトのような磁性金属薄板
に挾み込む工程が省略されているので工程数が省け、量
産性が良く、安価な複合型磁性材料が製作できる。In addition, the present invention omits the conventional process of sandwiching a magnetic metal thin plate such as single crystal sendust between a magnetic metal thin plate such as polycrystalline ferrite, so the number of processes can be omitted, mass production is good, and the cost is low. Composite magnetic materials can be manufactured.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第４図は本発明の一実施例を示すものであり
、第１図は第１工程を示した斜面図、第２図は第２工程
を示した正面図、第３図は第３工程を示した正面図、第
４図は完成品を示した斜面図、第５図は複合型磁性材料
としての従来の一例を示した斜面図である。 １・・・磁気ヘッド、３・・・第１の磁性金属板、４・
・・第２の磁性金属板、５・・・非磁性金属膜、６・・
・銀ロウ。Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a perspective view showing the first step, Figure 2 being a front view showing the second step, and Figure 3 being a front view showing the second step. FIG. 4 is a front view showing the third step, FIG. 4 is a perspective view showing the finished product, and FIG. 5 is a perspective view showing an example of a conventional composite magnetic material. DESCRIPTION OF SYMBOLS 1... Magnetic head, 3... First magnetic metal plate, 4...
...Second magnetic metal plate, 5...Nonmagnetic metal film, 6...
・Silver wax.

Claims (6)

【特許請求の範囲】[Claims] （１）第１の磁性金属板と該磁性金属板とは異なる第２
の磁性金属板の対向両面又は何れか片面に非磁性金属膜
を形成し、該磁性金属膜と溶融性（ろう性）が良い金属
系ロウ材により第１、第２の前記磁性金属板を接合した
ことを特徴とする複合型磁性材料。(1) A first magnetic metal plate and a second magnetic metal plate different from the magnetic metal plate.
A non-magnetic metal film is formed on opposite surfaces or either one side of the magnetic metal plate, and the first and second magnetic metal plates are bonded to the magnetic metal film using a metal brazing material with good meltability (waxability). A composite magnetic material characterized by: （２）前記第１の磁性金属板が多結晶フェライトである
ことを特徴とする特許請求の範囲第１項記載の複合型磁
性材料。(2) The composite magnetic material according to claim 1, wherein the first magnetic metal plate is polycrystalline ferrite. （３）前記第２の磁性金属板が単結晶センダストである
ことを特徴とする特許請求の範囲第１項記載の複合型磁
性材料。(3) The composite magnetic material according to claim 1, wherein the second magnetic metal plate is single crystal sendust. （４）前記第１の磁性金属板が多結晶フェライトで且つ
前記第２の磁性金属板が単結晶センダストであることを
特徴とする特許請求の範囲第１項記載の複合型磁性材料
。(4) The composite magnetic material according to claim 1, wherein the first magnetic metal plate is polycrystalline ferrite, and the second magnetic metal plate is single-crystal sendust. （５）前記非磁性金属膜が、遷移元素系列に属するＶ、
Ｃｒ、Ｔｉのうち何れかの金属元素であることを特徴と
する特許請求の範囲第１項記載の複合型磁性材料。(5) the nonmagnetic metal film is V belonging to the transition element series;
The composite magnetic material according to claim 1, characterized in that it is a metal element selected from among Cr and Ti. （６）前記金属系ロウ材が、銀ロウ又はＳｎ−Ｐｂロウ
材の何れかであることを特徴とする特許請求の範囲第１
項記載の複合型磁性材料。(6) Claim 1, wherein the metal-based brazing material is either a silver solder or a Sn-Pb brazing material.
Composite magnetic material described in section.
JP4469485A 1985-03-08 1985-03-08 Composite magnetic material Pending JPS61204909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4469485A JPS61204909A (en) 1985-03-08 1985-03-08 Composite magnetic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4469485A JPS61204909A (en) 1985-03-08 1985-03-08 Composite magnetic material

Publications (1)

Publication Number Publication Date
JPS61204909A true JPS61204909A (en) 1986-09-11

Family

ID=12698521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4469485A Pending JPS61204909A (en) 1985-03-08 1985-03-08 Composite magnetic material

Country Status (1)

Country Link
JP (1) JPS61204909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018504518A (en) * 2014-12-05 2018-02-15 ポスコＰｏｓｃｏ High silicon steel sheet with excellent magnetic properties and method for producing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018504518A (en) * 2014-12-05 2018-02-15 ポスコＰｏｓｃｏ High silicon steel sheet with excellent magnetic properties and method for producing the same

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