JPS61205000A - Magnetic shield part - Google Patents
Magnetic shield partInfo
- Publication number
- JPS61205000A JPS61205000A JP4454585A JP4454585A JPS61205000A JP S61205000 A JPS61205000 A JP S61205000A JP 4454585 A JP4454585 A JP 4454585A JP 4454585 A JP4454585 A JP 4454585A JP S61205000 A JPS61205000 A JP S61205000A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- magnetic shield
- shield component
- component according
- magnetic
- 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
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 21
- 239000000463 material Substances 0.000 claims description 13
- 229910045601 alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 4
- 229910003271 Ni-Fe Inorganic materials 0.000 claims 5
- 238000005253 cladding Methods 0.000 claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910000889 permalloy Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001004 magnetic alloy Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 （発明の技術的分野） 本発明は、磁気シールド部品に閏する。[Detailed description of the invention] (Technical field of invention) The present invention relates to magnetic shield components.
（発明の技術的背景とその問題点）
−言に磁気シールド部品といっても多（の用途があり、
要求特性に応じてＮ’ｉ −Ｆｅ系磁性合金、ケイ素鋼
、１４鉄などが用いられている。(Technical background of the invention and its problems) - Needless to say, magnetic shielding parts have many uses.
N'i-Fe magnetic alloy, silicon steel, 14 iron, etc. are used depending on the required characteristics.
中でちＮｉ−Ｆｅ系磁性合金はケタ違いに高い透磁率を
有し、薄くてもその１０倍厚以上の純鉄よりも良いシー
ルド効果を有することが多い。Among them, Ni--Fe based magnetic alloys have an order of magnitude higher magnetic permeability, and even if they are thin, they often have a better shielding effect than pure iron, which is ten times thicker or more.
弱磁Ｗのいくつかのシールドは、ごく薄いバー７０イで
充分な場合が多い。For some shields of weak magnetic W, a very thin bar 70 is often sufficient.
どころが、こうした磁気特性の要求どは別に機械的に強
いことが必要な用途がある。このような用途にＩ−ｐい
ては、やむり【＜厚いバーマロ−イ板を使用４ることに
なり、不経済である。例えば自動車部品のシールド材、
各種オーディｔｉ器のシールド材などである。中でもカ
セットテープシールド板は多量の／ｌ産がされているが
、磁気特性１つの理由からよく使用されているＯｏ、１
【・〜０，８１１ｙの板厚を必要とする場合は１ｐない
。However, in addition to these requirements for magnetic properties, there are applications that require mechanical strength. In such applications, a thick barmalloy plate must be used, which is uneconomical. For example, shielding materials for automobile parts,
These include shielding materials for various audio equipment. Among them, cassette tape shield plates are produced in large quantities /l, but Oo, 1 is often used due to its magnetic properties.
[・If a plate thickness of ~0,811y is required, 1 p is required.
板厚を厚く４るのは強度的叩出、特に自動機のくみこみ
などを考えでいるからである。本発明は、このような状
況を勘案してなされたものである。The reason for making the board thick is to allow for strong punching, especially for use in automatic machines. The present invention has been made in consideration of this situation.
（発明の目的）
本発明は、良好な磁気シールド効果を有し、かつ良好な
機械的強度を有する磁気シールド部品を提供することを
目的とする。(Objective of the Invention) An object of the present invention is to provide a magnetic shielding component having a good magnetic shielding effect and good mechanical strength.
〈発明の概要）
本発明のシールド部品は、磁気シ：−ルドをＮｉ−「ｅ
磁性合金で行うが、このＮｉ −「ｅ磁性合金はＮｉ３
０〜９０市吊％を含み、更にＮ１には必鮫に応じてＭｏ
、Ｎｂ 、Ｗ、Ｃｒ 、Ｃｕ 。<Summary of the invention> The shield component of the present invention includes a magnetic shield made of Ni-"e".
This is done with a magnetic alloy, but this Ni - "e magnetic alloy is Ni3
Including 0-90 city suspension%, and further Mo depending on the need for N1
, Nb, W, Cr, Cu.
Ｍｎなどを添加し、残部実質的にＦｅよりなる合金を用
いる１、シールド効果の点からは透磁率が高く、耐食性
にもすぐれるＪＩＳ ＰＣ相当パーマロイがにいが、
価格をとえるとＪＩＳｌ）１３パーマＤイ、さらには耐
食性を考えてＣｒ入りＰＢ相当パーマＯイ（例えば４Ｏ
Ｎｉ −１０ｃｒ −ｒ”ｅ ＞笠で６よい場合がある
。異種材料に対するパーマロイの厚さの比率は、要求特
性によってちがうが、多くの場合０．５〜１５％あれば
充分であり、ロス１−パーフオーマンスを考えると１〜
１０％、さらに好ましくは２−５％がよい。このときパ
ーマロイは片側でも両側で６よいが、両側にすると若干
コメ１〜アツプがある。Using an alloy containing elements such as Mn and the remainder essentially consisting of Fe, JIS PC-equivalent permalloy, which has high magnetic permeability and excellent corrosion resistance, is used in terms of shielding effect.
In terms of price, JIS l) 13 perm D, and in consideration of corrosion resistance, perm O equivalent to PB containing Cr (e.g. 4O
Ni −10cr −r”e > 6 may be sufficient.The ratio of permalloy thickness to dissimilar materials varies depending on the required properties, but in most cases, 0.5 to 15% is sufficient, and loss 1 - Considering performance, 1~
10%, more preferably 2-5%. At this time, permalloy is good for 6 on one side or both sides, but if it is on both sides, it will slightly increase by 1 to 1.
しかし、シールド効果は二φシールドとなるので両側の
方がよい。異種材料は強磁性材料でも非磁性材料でもよ
いが、用途によっては保磁力の高い強磁性材料を使うと
帯磁力があり不具合の場合もある。However, since the shielding effect is a two-φ shield, it is better to use both sides. The dissimilar material may be a ferromagnetic material or a non-magnetic material, but depending on the application, if a ferromagnetic material with a high coercive force is used, it may be magnetized and may cause problems.
今回のシールド部品の目的からして、この異種材料はパ
ーマロイより安価であることが必要である。その材料と
してはＡ１及びＡ１合金、Ｃｕ及びＣｕ合金、Ｆｅ及び
Ｆｅ合金、低Ｎｔ合金など各種材料が考えられるが圧Ｗ
性及び価格から考えれば５ＵＳ３０４などのオースデナ
イ１−ステンレス、５ＵＳ４３０などのフエライ１−ス
テンレス合金がよい。オーステナイ１−ステンレスはパ
ーマロイに比べ、熱膨張係数（以下（χど称す。）が大
きいので焼鈍冷Ｗ時にバー７１−コイに圧縮応力がかか
る。このため磁歪負のパーマロイがよい。ステンレスは
８ＯＮｉ系に対しではαが小さいので磁歪正の方がよい
がαがフ１ライｌ−ステンレスより小さくなる成分では
磁歪を負にすることは不可能であり、このことをあまり
気にする必要はない。また、パーマロイど同時に焼鈍さ
れるので、高温に焼鈍されても耐′ｆ＆竹のよいように
Ｍｏ 、Ｃｕ 、Ｎｂなどを添加した４３０又は４３４
の改良型ステンレスが望ましい。Considering the purpose of this shield component, this different material needs to be cheaper than permalloy. Various materials can be considered as the material, such as A1 and A1 alloy, Cu and Cu alloy, Fe and Fe alloy, and low Nt alloy.
In terms of performance and price, Ausdenai 1-stainless steel such as 5US304 and Ferai 1-stainless steel alloy such as 5US430 are preferable. Austenite 1-stainless steel has a larger coefficient of thermal expansion (hereinafter referred to as χ) than permalloy, so compressive stress is applied to the bar 71-coil during annealing and cooling.For this reason, permalloy with negative magnetostriction is preferable.Stainless steel is 8ONi type Since α is small, it is better to have positive magnetostriction, but it is impossible to make magnetostriction negative for components where α is smaller than that of fly l-stainless steel, so there is no need to be concerned about this. In addition, since permalloy is annealed at the same time, 430 or 434 is added with Mo, Cu, Nb, etc. to have good resistance to 'f' and bamboo even when annealed at high temperatures.
Improved stainless steel is preferred.
（発明の実施例）
１００ｍｍ厚の５ＵＳ３０４に対し４１１１Ｉｌ厚の７
７Ｎｉ −５Ｃｕ −４Ｍｏ−Ｆｅのパーマロイを用意
し、重ね合せて溶接した。このブロックを熱間圧延、冷
間圧延しＯ１６［の板としてカセットテープ用シールド
板にして１０００℃で焼鈍した。(Embodiment of the invention) 7 of 4111Il thickness for 5US304 of 100mm thickness
Permalloys of 7Ni-5Cu-4Mo-Fe were prepared, overlapped, and welded. This block was hot-rolled and cold-rolled to form an O16 plate into a shield plate for a cassette tape and annealed at 1000°C.
これと他材質で作った同形状のシールド板についてシー
ルド効果を比較した。シールド効果は発振コイルとピッ
クアップコイルの間にシールド板を入れてはかった。結
果は第１表のとおりである。We compared the shielding effectiveness of this and shield plates of the same shape made of other materials. The shielding effect was measured by inserting a shield plate between the oscillation coil and the pickup coil. The results are shown in Table 1.
第 １ 表
（発明の効果）
第１表でわかるとおり、本発明は機械強度及びシールド
効果が良好で、かつ安価な磁気シールド部品を提供でき
る。Table 1 (Effects of the Invention) As can be seen from Table 1, the present invention can provide an inexpensive magnetic shielding component with good mechanical strength and shielding effect.
代理人弁理士 則 近 憲 佑 （ほか１名）Representative Patent Attorney Kensuke Chika (1 other person)
Claims (1)
このクラッドの異種材料に対するＮｉ−Ｆｅ系合金の厚
さの比率が０．５〜１５％であることを特徴とする磁気
シールド部品。 ２、異種材料に対するＮｉ−Ｆｅ系合金の厚さの比率が
１〜１０％である特許請求の範囲第１項に記載の磁気シ
ールド部品。 ３、異種材料に対するＮｉ−Ｆｅ系合金の厚さの比率が
２〜５％である特許請求の範囲第１項乃至第２項のいづ
れかにに記載の磁気シールド部品。 ４、異種材料は、ステンレス合金である特許請求の範囲
第１項乃至第３項のいづれかに記載の磁気シールド部品
。 ５、ステンレス合金は、フェライト系ステンレス合金で
ある特許請求の範囲第４項に記載の磁気シールド部品。 ６、ステンレス合金は、オーステナイト系ステンレス合
金である特許請求の範囲第４項に記載の磁気シールド部
品。 ７、Ｎｉ−Ｆｅ合金は、負の磁石歪を有する合金である
特許請求の範囲第６項に記載の磁気シールド部品。 ８、磁気シールド部品は、カセットテープシールド板で
ある特許請求の範囲第１項乃至第７項のいづれかに記載
の磁気シールド部品。[Claims] 1. Cladding Ni-Fe alloy with inexpensive dissimilar materials,
A magnetic shield component characterized in that the ratio of the thickness of the Ni-Fe alloy to the dissimilar material of the cladding is 0.5 to 15%. 2. The magnetic shield component according to claim 1, wherein the ratio of the thickness of the Ni-Fe alloy to the dissimilar material is 1 to 10%. 3. The magnetic shield component according to any one of claims 1 to 2, wherein the ratio of the thickness of the Ni-Fe alloy to the dissimilar material is 2 to 5%. 4. The magnetic shield component according to any one of claims 1 to 3, wherein the different material is a stainless steel alloy. 5. The magnetic shield component according to claim 4, wherein the stainless steel alloy is a ferritic stainless steel alloy. 6. The magnetic shield component according to claim 4, wherein the stainless steel alloy is an austenitic stainless alloy. 7. The magnetic shield component according to claim 6, wherein the Ni-Fe alloy is an alloy having negative magnetostriction. 8. The magnetic shield component according to any one of claims 1 to 7, wherein the magnetic shield component is a cassette tape shield plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4454585A JPS61205000A (en) | 1985-03-08 | 1985-03-08 | Magnetic shield part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4454585A JPS61205000A (en) | 1985-03-08 | 1985-03-08 | Magnetic shield part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61205000A true JPS61205000A (en) | 1986-09-11 |
Family
ID=12694471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4454585A Pending JPS61205000A (en) | 1985-03-08 | 1985-03-08 | Magnetic shield part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61205000A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05343881A (en) * | 1992-06-05 | 1993-12-24 | Nkk Corp | Magnetic shield device |
| GB2356203A (en) * | 1999-09-29 | 2001-05-16 | Brandauer & Co Ltd C | Electromagnetic shielding |
-
1985
- 1985-03-08 JP JP4454585A patent/JPS61205000A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05343881A (en) * | 1992-06-05 | 1993-12-24 | Nkk Corp | Magnetic shield device |
| GB2356203A (en) * | 1999-09-29 | 2001-05-16 | Brandauer & Co Ltd C | Electromagnetic shielding |
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