JPH06140783A - Amorphous magnetic shield plate and magnetic shield technique - Google Patents

Amorphous magnetic shield plate and magnetic shield technique

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Publication number
JPH06140783A
JPH06140783A JP30818592A JP30818592A JPH06140783A JP H06140783 A JPH06140783 A JP H06140783A JP 30818592 A JP30818592 A JP 30818592A JP 30818592 A JP30818592 A JP 30818592A JP H06140783 A JPH06140783 A JP H06140783A
Authority
JP
Japan
Prior art keywords
magnetic shield
amorphous
plate
layers
plates
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
Application number
JP30818592A
Other languages
Japanese (ja)
Other versions
JP2837595B2 (en
Inventor
Toshifumi Niino
敏文 新納
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.)
Fujita Corp
Original Assignee
Fujita Corp
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Filing date
Publication date
Application filed by Fujita Corp filed Critical Fujita Corp
Priority to JP30818592A priority Critical patent/JP2837595B2/en
Publication of JPH06140783A publication Critical patent/JPH06140783A/en
Application granted granted Critical
Publication of JP2837595B2 publication Critical patent/JP2837595B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To provide a magnetic shield material which is easy to handle and has high magnetic shield performance. CONSTITUTION:An amorphous magnetic shield plate A is formed by laminating a plurality of layers of amorphous ribbons 2 in a silicon steel plate 1, by covering the lamination with a resin film 3, and by depressurizing an interior of the resin film to a vacuum pack. In a magnetic shield technique, a number of amorphous magnetic shield plates A are arranged like the same plane, and arranged so that a joint 4 of adjacent clearances of amorphous magnetic shield plates A' arranged thereon does not coincide with a joint 4 between amorphous magnetic shield plates arranged therebelow.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、外乱の変動磁場を遮蔽
し、内部の機器を保護する目的で設置される磁気シール
ドルーム用のアモルファス磁気シールド板と磁気シール
ド工法とに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an amorphous magnetic shield plate for a magnetic shield room and a magnetic shield construction method installed for the purpose of shielding a fluctuating magnetic field of disturbance and protecting internal equipment.

【0002】[0002]

【従来の技術】最近のインテリジェントビルや精密工場
に設置される機器には、磁気に対して敏感なものが多く
なってきている。例えば、電子顕微鏡は感度を上げる為
に、磁気の変動成分を2ミリガウス以下に押えるように
なっている。また、一般のOA機器でも、数ガウスとい
った弱い磁気においても悪影響が出るものがある。例え
ば、コンピューター用のCRTは、1ガウス程度でも画
面が歪んだり、色ズレが生じたりする。さらに交流磁場
であれば、10ミリガウス程度でも支障がある。
2. Description of the Related Art Recently, many devices installed in intelligent buildings and precision factories are sensitive to magnetism. For example, the electron microscope is designed to suppress the magnetic fluctuation component to 2 milligauss or less in order to increase the sensitivity. In addition, even general OA equipment may have an adverse effect on weak magnetism such as several Gauss. For example, a CRT for a computer may have a distorted screen or a color shift even at about 1 Gauss. Furthermore, if it is an alternating magnetic field, even about 10 milligauss will be a problem.

【0003】それに対して、現在の日常環境において
は、種々の磁気発生源が近くに存在している。例えば、
電車や車、あるいは送電線等の周辺には大きな磁気が漏
れており、近くに建屋を作る場合、数10ミリガウス位
の変動磁場が存在する。その中に設置される精密機器
は、磁気的な悪環境下に曝されることになり、満足に機
器の性能を発揮することは出来なくなる。この対処方法
として、機器周辺あるいは機器が設置される部屋全体を
パーマロイ、アモルファス、硅素鋼板、純鉄等の強磁性
体で囲み、外部からの侵入磁場を吸い採る形で磁気の侵
入を防ぐようにした磁気シールドルームを設置する方法
が採られている。
On the other hand, in the present everyday environment, various magnetic sources are present nearby. For example,
Large magnetism leaks around trains, cars, power lines, etc. When a building is built nearby, there is a fluctuating magnetic field of about several tens of milligauss. The precision equipment installed therein will be exposed to a magnetically adverse environment, and it will no longer be possible to demonstrate the performance of the equipment satisfactorily. As a countermeasure against this, enclose the surroundings of the equipment or the entire room in which the equipment is installed with a ferromagnetic material such as permalloy, amorphous, silicon steel plate, pure iron, etc. to prevent the invasion of magnetism by absorbing the invading magnetic field from the outside. The method of installing the magnetically shielded room is adopted.

【0004】磁気シールドルームは、使用する磁性材
料、構成方法等により性能、コストが大きく異なり、目
的に応じて最適なものが選定される。従来から、高性能
磁気シールドルームに用いられているのはパーマロイ製
であり、2層や3層構造にすればさらに高い効果が期待
できる。唯、パーマロイは応力により磁気特性が大きく
劣化するという欠点を有し、加工時のみならず施工時及
び使用時においても十分な注意が必要で、一般の建物に
は利用しにくい。またコスト面でも制約が大きい。
The magnetic shield room has a great difference in performance and cost depending on the magnetic material used, the construction method, etc., and the optimum one is selected according to the purpose. Conventionally, it is made of permalloy that has been used for a high-performance magnetically shielded room, and a higher effect can be expected if a two-layer or three-layer structure is used. However, permalloy has the drawback that its magnetic properties are greatly deteriorated by stress, and it requires careful attention not only during processing but also during construction and use, making it difficult to use for general buildings. In addition, there are major restrictions on costs.

【0005】そこで、最近は透磁率がパーマロイよりも
高く、応力による磁気特性の劣化の少ないアモルファス
を用いた磁気シールドルーム工法が注目されている。ア
モルファスは、鉄やコバルトを急冷させて出来る非晶質
の金属あるいは合金である。磁気シールド材料に用いら
れるものは、箔状の帯であるリボン(例えば日本非晶質
金属のMETGLAS ) 、キャビテーション法で作られるフレ
ーク状合金をシート状にしたもの(例えば、リケンのア
モリックシート)が提供されている。これらは、コスト
面でもパーマロイより有利である。尚、硅素鋼板や純鉄
は、磁気特性面でパーマロイ、アモルファスに大きく劣
り、他の材料と複合化して使用するのが一般的である。
Therefore, recently, a magnetic shield room construction method using an amorphous material, which has a magnetic permeability higher than that of permalloy and has little deterioration of magnetic characteristics due to stress, has been attracting attention. Amorphous is an amorphous metal or alloy formed by quenching iron or cobalt. The material used for the magnetic shield material is a ribbon in the form of a foil (for example, METGLAS of Japan Amorphous Metal), or a flake alloy made by the cavitation method in the form of a sheet (for example, Riken's amolic sheet). Is provided. These are more advantageous than permalloy in terms of cost. It should be noted that silicon steel sheets and pure iron are largely inferior to permalloy and amorphous in terms of magnetic characteristics, and are generally used in combination with other materials.

【0006】[0006]

【発明が解決しようとする課題】前記従来技術のフレー
ク状合金片をシート状にしたものは、現在多く用いられ
ている材料であるが、自由な形状を作れるメリットの反
面、数層重ねてもフレーク間の隙間は存在するととも
に、磁気の不連続による磁気抵抗が大きく、初期の性能
を得ることは出来ない。その結果、硅素鋼板と組合わせ
た形で使われることが多く、ある程度の磁気シールド効
果は認められるが、低い磁場領域で磁気シールド性能が
高いという本来のアモルファスの特性を生かしていると
は言い難い。
Sheet-shaped flaky alloy pieces of the prior art described above are materials that are widely used at present, but on the other hand, they have the advantage that they can be freely formed, but even if several layers are stacked. There is a gap between the flakes and the magnetic resistance due to the discontinuity of magnetism is large, so that the initial performance cannot be obtained. As a result, it is often used in combination with a silicon steel sheet, and although some magnetic shielding effect is recognized, it is hard to say that it utilizes the original amorphous characteristic of high magnetic shielding performance in a low magnetic field region. .

【0007】一方、前記の箔状の帯であるリボンの場
合、隙間のない密実な箔であるため、フレーク状合金片
をシート状にしたものに比べてアモルファス本来の特性
を生かすことが出来る。しかし、箔状の帯であるリボン
の特性を十分に発揮させるためには、解決すべき問題点
も多い。箔は、通常25μm程度の厚さであり、磁気飽
和することなく磁気シールド効果を上げるには、相当枚
数を重ねる必要がある。また、現在製造可能な幅の最大
値が220mmであり、大きな平面を磁気シールドする
場合に、多くの継ぎ目処理が必要になり、製造上大きな
手間になり、取り扱いにおいても、エッジで手を切る等
の危険があり、さらに現場での管理が難しい。
On the other hand, in the case of the above-mentioned ribbon which is a foil-shaped band, since it is a dense foil with no gaps, it is possible to make use of the original characteristics of the amorphous material as compared with the case where the flake-shaped alloy piece is made into a sheet shape. . However, there are many problems to be solved in order to fully exhibit the characteristics of the ribbon, which is a foil strip. The foil is usually about 25 μm thick, and it is necessary to stack a considerable number of sheets in order to enhance the magnetic shield effect without magnetic saturation. In addition, the maximum width that can be manufactured at present is 220 mm, and when a large flat surface is magnetically shielded, a lot of seam processing is required, which is a great labor for manufacturing, and the hand is cut by an edge during handling. Is dangerous and is difficult to manage on-site.

【0008】そこで、プラスターボードにアモルファス
リボンを工場で必要枚数張り付け、ユニット板として現
地に取り付ける工法も用いられるが、ユニット板間の継
ぎ目処理等、製造上種々の問題がある。また、コスト面
の有利さから鉄系のアモルファスが用いられることが多
いが、鉄は錆の問題があり、アモルファスは発錆により
磁気特性が大きく劣化されやすい。以上のように、箔状
の帯であるアモルファスリボンは、一般の磁気シールド
ルーム用主要材料として期待されているものの、その取
り扱いの悪さから普及が遅れているのが現状で、その打
開策となる新工法が望まれていた。そこで本発明は、磁
気シールド材料として取り扱いが容易で、しかも磁気シ
ールド性能の高いものを提供することを目的とする。
Therefore, a method is also used in which a required number of amorphous ribbons are attached to plaster boards at the factory and attached as unit plates on site, but there are various manufacturing problems such as seam treatment between unit plates. In addition, although iron-based amorphous is often used because of its cost advantage, iron has a problem of rusting, and amorphous has a tendency to largely deteriorate in magnetic characteristics due to rusting. As described above, the amorphous ribbon, which is a foil-shaped band, is expected as a main material for general magnetically shielded rooms, but its poor handling has slowed its widespread use. A new construction method was desired. Therefore, an object of the present invention is to provide a magnetic shield material that is easy to handle and has high magnetic shield performance.

【0009】[0009]

【課題を解決するための手段】本発明は上記目的を達成
したものであり、アモルファス磁気シールド板は、硅素
鋼板等の補強板上に複数枚のアモルファスリボンが平面
状に隙間なく複数層に敷き詰められ、積層された補強板
と複数層の平面状アモルファスとの上下面及び周縁部が
樹脂フィルムで覆われるとともに、樹脂フィルムで覆わ
れた内部が減圧されて真空パック状に形成されている。
複数層の平面状アモルファスは、上下隣り合う層でアモ
ルファスリボンの長手方向や接合境界位置が変えられ
て、アモルファスリボンの接合境界線が上下層で重なら
ないようにするのが、磁気シールド上、好ましい。本発
明の磁気シールド工法は、前記のアモルファス磁気シー
ルド板を多数同一平面上に並べて第1磁気シールド面を
形成し、次いで第1磁気シールド面に重ねて多数の磁気
シールド板を並べて第2磁気シールド面を形成する際
に、第1シールド面と第2シールド面のそれぞれのアモ
ルファス磁気シールド板間の継ぎ目が一致しないよう
に、第2シールド面のシールド板を並べることを特徴と
する。
Means for Solving the Problems The present invention has achieved the above object, and an amorphous magnetic shield plate is obtained by laying a plurality of amorphous ribbons on a reinforcing plate such as a silicon steel plate in a planar manner in a plurality of layers without gaps. The laminated reinforcing plate and the plurality of layers of planar amorphous are covered with resin films on the upper and lower surfaces and the peripheral portion, and the inside covered with the resin film is decompressed to form a vacuum pack.
In the case of a plurality of layers of planar amorphous, it is preferable in terms of magnetic shield that the longitudinal direction of the amorphous ribbon and the bonding boundary position are changed in the vertically adjacent layers so that the bonding boundary lines of the amorphous ribbon do not overlap in the upper and lower layers. . According to the magnetic shield method of the present invention, a large number of the above-mentioned amorphous magnetic shield plates are arranged on the same plane to form a first magnetic shield surface, and then a large number of magnetic shield plates are arranged on the first magnetic shield surface to form a second magnetic shield. When the surface is formed, the shield plates of the second shield surface are arranged so that the joints between the amorphous magnetic shield plates of the first shield surface and the second shield surface do not match.

【0010】[0010]

【作用】上記のアモルファス磁気シールド板はユニット
板として工場で作成でき、しかも硅素鋼板等の補強板に
複数枚の薄いアモルファスリボンを平面状に隙間なく複
数層に敷き詰めて形成されるが、薄いアモルファスリボ
ンを補強板に敷き詰めるので、作業性がよいとともにそ
の取り扱いが容易である。また、各層のアモルファスリ
ボンの方向等が変えられて各アモルファスリボンの隣り
合う境界線が上下で一致しないようにされているので、
磁気シールド性が高いものとなる。さらに補強板と複数
層のアモルファス層とは積層状態で樹脂フィルムに覆わ
れて、内部が真空にされるので、鉄系の各アモルファス
リボンは発錆することはない。前記のアモルファス磁気
シールド板を使用して磁気シールド面を形成する場合
は、第1層を形成する各磁気シールド板間の継ぎ目と、
第2層の各磁気シールド板間の継ぎ目とが一致しないよ
うにされるので、磁気シールド性能がよいものとなる。
磁気シールド板を3層以上に重ねて配置させれば、より
磁気シールド性は向上し、磁気シールド板の重ね枚数は
部分的に異なる様にしても良い。
The above-mentioned amorphous magnetic shield plate can be made as a unit plate at the factory, and is formed by laying a plurality of thin amorphous ribbons flatly in a plurality of layers on a reinforcing plate such as a silicon steel plate. Since the ribbon is spread over the reinforcing plate, it has good workability and is easy to handle. In addition, since the directions of the amorphous ribbons in each layer are changed so that the adjacent boundary lines of the amorphous ribbons do not match vertically,
The magnetic shield property is high. Furthermore, since the reinforcing plate and the plurality of amorphous layers are covered with the resin film in a laminated state and the inside is evacuated, each iron-based amorphous ribbon does not rust. When a magnetic shield surface is formed using the above-mentioned amorphous magnetic shield plate, a joint between the magnetic shield plates forming the first layer,
Since the seams between the magnetic shield plates of the second layer do not coincide with each other, the magnetic shield performance is good.
If the magnetic shield plates are arranged in three or more layers, the magnetic shield property is further improved, and the number of the magnetic shield plates may be partially different.

【0011】[0011]

【実施例】本発明のアモルファス磁気シールド板の実施
例を図1、2により説明する。アモルファス磁気シール
ド板Aは、硅素鋼板1の上にアモルファスリボン2を隙
間なく平面状に複数層敷き詰め、硅素鋼板1と複数のア
モルファス層との積層体の上下面と周縁部とを樹脂フィ
ルム3で覆い、袋状の樹脂フィルム3の内部が減圧され
て真空パック状に形成されている。このようにユニット
板状に形成されたアモルファス磁気シールド板Aの厚さ
は、約1mm程度である。硅素鋼板1は、例えば平面が
600×900mmの大きさで厚さが0.35〜0.5
mmに形成されている。硅素鋼板1は、薄いアモルファ
スリボン2を平面状に敷き詰めるための補強板になると
ともに、磁気シールド性能をも有する。よって硅素鋼板
1の代わりに、アモルファスリボン2を平面状に保て
て、磁気シールド性のよい板材を使用することができ
る。硅素鋼板1の上面に敷かれるアモルファスリボン2
は、例えば幅が約220mmのものが使用され、硅素鋼
板1の上面に隙間なく敷き詰められる。また敷き詰めら
れたアモルファスリボン2は、硅素鋼板1の周縁部で溶
融接合等の方法で堅固に接着されている。
EXAMPLE An example of the amorphous magnetic shield plate of the present invention will be described with reference to FIGS. In the amorphous magnetic shield plate A, a plurality of amorphous ribbons 2 are laid in a plane shape on a silicon steel plate 1 without any gaps, and a resin film 3 covers the upper and lower surfaces of the laminate of the silicon steel plate 1 and a plurality of amorphous layers and the peripheral portion. The inside of the cover and bag-shaped resin film 3 is decompressed to form a vacuum pack. The thickness of the amorphous magnetic shield plate A thus formed in the unit plate shape is about 1 mm. The silicon steel plate 1 has, for example, a flat surface of 600 × 900 mm and a thickness of 0.35 to 0.5.
It is formed in mm. The silicon steel plate 1 serves as a reinforcing plate for laying the thin amorphous ribbons 2 in a planar shape, and also has magnetic shield performance. Therefore, instead of the silicon steel plate 1, the amorphous ribbon 2 can be kept flat and a plate material having a good magnetic shield property can be used. Amorphous ribbon 2 laid on top of silicon steel plate 1
For example, those having a width of about 220 mm are used, and they are spread on the upper surface of the silicon steel sheet 1 without any gap. The spread amorphous ribbon 2 is firmly adhered to the peripheral edge of the silicon steel plate 1 by a method such as fusion bonding.

【0012】アモルファスリボン2からなるアモルファ
ス層は、複数層重ねられ、図2に示される実施例では3
層重ねられている。これら3層のアモルファス層は、そ
れぞれのアモルファスリボン2の接合境界線が上下で一
致しないようにされて、磁気の漏れがないようにしてい
る。例えば、図2の実施例では、硅素鋼板1側の第1ア
モルファス層は長辺方向にアモルファスリボン2が配列
され、その上の第2アモルファス層は短辺方向にアモル
ファスリボン2が配列され、さらにその上の第3アモル
ファス層は第1のアモルファス層のアモルファスリボン
2と同方向で境界線位置が重ならないようにずらして配
置されている。
A plurality of amorphous layers composed of the amorphous ribbon 2 are stacked, and in the embodiment shown in FIG.
It is layered. These three amorphous layers are arranged so that the junction boundary lines of the respective amorphous ribbons 2 do not coincide with each other in the upper and lower parts so that there is no magnetic leakage. For example, in the embodiment of FIG. 2, the first amorphous layer on the side of the silicon steel sheet 1 has the amorphous ribbons 2 arranged in the long side direction, and the second amorphous layer thereon has the amorphous ribbons 2 arranged in the short side direction. The third amorphous layer thereon is arranged in the same direction as the amorphous ribbon 2 of the first amorphous layer so as to be offset so that the boundary line positions do not overlap.

【0013】上記のように構成されたアモルファス磁気
シールド板を使用して、磁気シールド壁を施工する工法
を図3により説明する。本実施例では、ユニット板状の
アモルファス磁気シールド板Aを下地壁に2層に取り付
けるものである。1層目を施工するため、アモルファス
磁気シールド板Aを図3に示されるように縦横に配列
し、この場合、隣り合うアモルファス磁気シールド板A
間に、継ぎ目4が形成される。次いで2層目を施工する
ため1層目の各アモルファス磁気シールド板Aに重ね
て、図2に示されるようにアモルファス磁気シールド板
A’を配列し、この場合も各アモルファス磁気シールド
板A’の間に継ぎ目が出来るが、その継ぎ目は1層目の
継ぎ目とは一致しないように配列されて、磁気シールド
性能が上げられる。なおアモルファス磁気シールド板A
を3層以上に重ねて施工する場合は、やはり継ぎ目が上
下で重ならないように、アモルファス磁気シールド板A
が配列される。またアモルファス磁気シールド板Aを重
ねる場合、部分的に、重ねる枚数が異なる様にして磁気
遮蔽の状況に対応させることもできる。
A method of constructing a magnetic shield wall using the amorphous magnetic shield plate constructed as described above will be described with reference to FIG. In this embodiment, two unit plate-shaped amorphous magnetic shield plates A are attached to the base wall. In order to construct the first layer, the amorphous magnetic shield plates A are arranged vertically and horizontally as shown in FIG. 3, and in this case, the adjacent amorphous magnetic shield plates A are arranged.
In between, a seam 4 is formed. Then, in order to construct the second layer, the amorphous magnetic shield plates A ′ of the first layer are stacked and the amorphous magnetic shield plates A ′ are arranged as shown in FIG. Although a seam is formed between them, the seam is arranged so as not to coincide with the seam of the first layer, and the magnetic shield performance is improved. Amorphous magnetic shield plate A
When stacking 3 or more layers, the amorphous magnetic shield plate A
Are arranged. Further, when the amorphous magnetic shield plates A are stacked, the number of stacked sheets may be partially different to meet the magnetic shielding situation.

【0014】[0014]

【発明の効果】本発明のアモルファス磁気シールド板
は、工場において補強板に複数層のアモルファス層を積
層した状態の標準ユニット板として製作できるため、性
能、精度に対する信頼性が高く、現場における取り扱い
も容易になり、現場管理が楽になる。またアモルファス
磁気シールド板自身は、アモルファスリボンが所定枚数
隙間なく敷き詰められたものであるため、アモルファス
本来の高い磁気シールド性能を発揮する。さらにアモル
ファス磁気シールド板は、樹脂フィルムで覆われて真空
パック状に作成されているため、アモルファスリボンが
空気と触れなくなり、鉄系のアモルファスにおいても発
錆の問題がない。磁気シールド工法では、ユニット板状
のアモルファス磁気シールド板間の継ぎ目が重ならない
ように複数層重ねられるため、隙間からの磁気漏洩のな
い磁気シールドルームを構築できる。
Since the amorphous magnetic shield plate of the present invention can be manufactured as a standard unit plate in which a plurality of amorphous layers are laminated on a reinforcing plate in a factory, it is highly reliable in performance and accuracy and can be handled in the field. It will be easier and the site management will be easier. Further, since the amorphous magnetic shield plate itself has a predetermined number of amorphous ribbons spread over each other without a gap, it exhibits the original high magnetic shield performance of amorphous. Further, since the amorphous magnetic shield plate is covered with a resin film and formed in a vacuum pack shape, the amorphous ribbon does not come into contact with air, and there is no problem of rust even in iron-based amorphous. In the magnetic shield method, since a plurality of layers are stacked so that the seams between the unit plate-shaped amorphous magnetic shield plates do not overlap each other, it is possible to construct a magnetic shield room without magnetic leakage from the gap.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のアモルファス磁気シールド板の断面図
である。
FIG. 1 is a sectional view of an amorphous magnetic shield plate of the present invention.

【図2】アモルファス磁気シールド板の分解斜視図であ
る。
FIG. 2 is an exploded perspective view of an amorphous magnetic shield plate.

【図3】磁気シールド工法の説明図である。FIG. 3 is an explanatory diagram of a magnetic shield method.

【符号の説明】[Explanation of symbols]

1 硅素鋼板 2 アモルファスリボン 3 樹脂フィルム 4 継ぎ目 A アモルファス磁気シールド板 1 Silicon steel plate 2 Amorphous ribbon 3 Resin film 4 Seam A Amorphous magnetic shield plate

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 硅素鋼板等の補強板上に複数枚のアモル
ファスリボンが平面状に隙間なく複数層に敷き詰めら
れ、積層された補強板と複数層の平面状アモルファスと
の上下面及び周縁部が樹脂フィルムで覆われるととも
に、樹脂フィルムで覆われた内部が減圧されて真空パッ
ク状に形成されていることを特徴とするアモルファス磁
気シールド板。
1. A plurality of amorphous ribbons are spread in a planar manner on a reinforcing plate such as a silicon steel plate in a plurality of layers without a gap, and the upper and lower surfaces and peripheral portions of the laminated reinforcing plate and the plural layers of planar amorphous are An amorphous magnetic shield plate, which is covered with a resin film, and the inside covered with the resin film is decompressed to form a vacuum pack.
【請求項2】 複数層の平面状アモルファスは、上下隣
り合う層でアモルファスリボンの長手方向や接合境界位
置が変えられて、アモルファスリボンの接合境界線が上
下層で重ならないように形成されていることを特徴とす
る請求項1に記載のアモルファス磁気シールド板。
2. The planar amorphous material having a plurality of layers is formed so that the longitudinal direction of the amorphous ribbon and the bonding boundary position are changed in the vertically adjacent layers so that the bonding boundary lines of the amorphous ribbon do not overlap in the upper and lower layers. The amorphous magnetic shield plate according to claim 1, wherein:
【請求項3】 請求項1のアモルファス磁気シールド板
を多数並べて磁気シールド面を施工する磁気シールド工
法であって、アモルファス磁気シールド板を多数同一平
面上に並べて第1磁気シールド面を形成し、次いで第1
磁気シールド面に重ねて多数のアモルファス磁気シール
ド板を並べて第2磁気シールド面を形成する際に、第1
シールド面と第2シールド面のそれぞれのアモルファス
磁気シールド板間の継ぎ目が一致しないように第2シー
ルド面のシールド板を並べることを特徴とする磁気シー
ルド工法。
3. A magnetic shield construction method for arranging a plurality of amorphous magnetic shield plates according to claim 1 to construct a magnetic shield surface, wherein a plurality of amorphous magnetic shield plates are arranged on the same plane to form a first magnetic shield surface, and First
When forming a second magnetic shield surface by stacking a large number of amorphous magnetic shield plates on the magnetic shield surface,
A magnetic shield construction method characterized in that the shield plates of the second shield surface are arranged so that the joints between the respective amorphous magnetic shield plates of the shield surface and the second shield surface do not match.
JP30818592A 1992-10-22 1992-10-22 Amorphous magnetic shield plate and magnetic shield method Expired - Fee Related JP2837595B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30818592A JP2837595B2 (en) 1992-10-22 1992-10-22 Amorphous magnetic shield plate and magnetic shield method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30818592A JP2837595B2 (en) 1992-10-22 1992-10-22 Amorphous magnetic shield plate and magnetic shield method

Publications (2)

Publication Number Publication Date
JPH06140783A true JPH06140783A (en) 1994-05-20
JP2837595B2 JP2837595B2 (en) 1998-12-16

Family

ID=17977938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30818592A Expired - Fee Related JP2837595B2 (en) 1992-10-22 1992-10-22 Amorphous magnetic shield plate and magnetic shield method

Country Status (1)

Country Link
JP (1) JP2837595B2 (en)

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