JPS63213908A - Small magnetic core - Google Patents
Small magnetic coreInfo
- Publication number
- JPS63213908A JPS63213908A JP62046899A JP4689987A JPS63213908A JP S63213908 A JPS63213908 A JP S63213908A JP 62046899 A JP62046899 A JP 62046899A JP 4689987 A JP4689987 A JP 4689987A JP S63213908 A JPS63213908 A JP S63213908A
- Authority
- JP
- Japan
- Prior art keywords
- permalloy
- magnetic
- magnetic metal
- thin plate
- thickness
- 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
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 229910000889 permalloy Inorganic materials 0.000 claims abstract description 16
- 238000010030 laminating Methods 0.000 claims abstract description 3
- 238000000137 annealing Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910002555 FeNi Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- WHOPEPSOPUIRQQ-UHFFFAOYSA-N oxoaluminum Chemical compound O1[Al]O[Al]1 WHOPEPSOPUIRQQ-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Soft Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
本発明はＥコア、Ｆコア等として好適な小型磁性コアに
関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a small magnetic core suitable as an E core, an F core, etc.
（従来の技術）
一般に、小型トランス用コイル等に用いられる磁心とし
ては、所定の形状に形成した磁性金属薄板を積層してな
るＥ型、Ｆ型、Ｅｌ型等の小型磁性コアがよく用いられ
ている。(Prior Art) In general, as magnetic cores used in coils for small transformers, etc., small magnetic cores such as E-type, F-type, and El-type, which are made of laminated magnetic metal thin plates formed into a predetermined shape, are often used. ing.
このような小型磁性コアに用いる磁性金属としては、Ｆ
ｅ−４５重呈％ＮｉやＦｅ−８０重量％Ｎｉ等の合金が
よく用いられており、また小型で優れた磁気特性をもた
せるために、厚さが０．２ｎｕ＋＋〜０、４１＋１とか
なり薄いものを使用している。The magnetic metal used for such a small magnetic core is F.
Alloys such as e-45 weight% Ni and Fe-80 weight% Ni are often used, and in order to be compact and have excellent magnetic properties, alloys with a thickness of 0.2nu++ to 0.41+1 are quite thin. are using.
このような小型磁性コアは、従来、次のようにして製造
されている。Such a small magnetic core has conventionally been manufactured as follows.
すなわちまず２、上述したようなＦｅ−Ｎｉ系合金から
なる所定の厚さの板材を、プレス加工により所定の形状
に打ち抜いた後、磁性焼鈍を行ない、次いでボビンに組
込んで完成させる。That is, first, a plate material of a predetermined thickness made of the Fe--Ni alloy as described above is punched into a predetermined shape by press working, and then subjected to magnetic annealing, and then assembled into a bobbin to complete the work.
（発明が解決しようとする問題点）
ところでこのような小型磁性コアは、前述した製造工程
のうちで、磁性金属薄板の磁性焼鈍を１０００℃前後と
高温で行なうため、その際に各薄板間で拡散接合をおこ
させないようにＡＡ２０３やＭｇｏ等の無機質微粉末を
１枚々に粉付けしており、さらにＥ型やＦ型のように個
々の形状が複雑な場合には特に、整列させて焼鈍しない
と絡みあつてしまい、変形等の不良発生率が高くなるの
で、焼鈍を行なう前にトレー上に１枚々手作業で並置し
ている。このように、焼鈍の前工程にかなりの作業工数
を必要としており、これにより製造コストが窩くなると
いう問題があった。また、このように手作業で行なうな
め、作業中に変形等の作業不良が発生する可能性が高い
という問題もあった。(Problem to be Solved by the Invention) By the way, such a small magnetic core is manufactured by performing magnetic annealing of magnetic metal thin plates at a high temperature of around 1000°C in the manufacturing process described above, so that there is In order to prevent diffusion bonding, inorganic fine powder such as AA203 or Mgo is powdered onto each sheet, and in addition, especially when the individual shapes are complex such as E-type and F-type, they are aligned and annealed. Otherwise, they will get tangled together, increasing the incidence of defects such as deformation, so before annealing, they are placed one by one on a tray by hand. As described above, a considerable number of man-hours are required for the pre-annealing process, which poses a problem of lowering manufacturing costs. Furthermore, since the work is carried out manually, there is a problem that there is a high possibility that defects such as deformation will occur during the work.
本発明はこのような従来の問題点を解決するためになさ
れたもので、製造工程における作業性が良く、製造工程
における不良発生率の少ない小型磁性コアを提供するこ
とを目的とする。The present invention has been made to solve these conventional problems, and an object of the present invention is to provide a small magnetic core that has good workability in the manufacturing process and has a low failure rate in the manufacturing process.
［発明の構成］
（問題点を解決するための手段）
本発明の小型磁性コアは、所定の形状に形成した磁性金
属薄板を複数枚積層させてなる小型磁性コアにおいて、
前記磁性金属薄板がＮｂパーマロイからなることを特徴
としている。[Structure of the Invention] (Means for Solving the Problems) The small magnetic core of the present invention is a small magnetic core formed by laminating a plurality of thin magnetic metal plates formed into a predetermined shape.
It is characterized in that the magnetic thin metal plate is made of Nb permalloy.
本発明に使用するＮｂパーマロイは、Ｎｂ １〜１４
重景％、Ｎｉ３０〜９０重袋％を合有し、残部がＦｅお
よび不可避的不純物からなるものであり、特にＮｂ
２゜７〜・７型巣％、Ｎ ｉ ７５〜８５重星％の型巣
で含有しているものが好ましく、またＦｅの一部をＭｏ
、Ｃｒ−Ｗからなる群より運ばれろ１種または２種以上
で置き換えたものを用いてもよい。The Nb permalloy used in the present invention is Nb 1-14
It contains 30% to 90% Ni, and the balance consists of Fe and inevitable impurities, especially Nb.
It is preferable that it contains 2°7~.7 type nests, Ni 75~85 double star%, and a part of Fe is Mo.
, Cr-W may be substituted with one or more species.
なお、このようにＦｅの一部をＭｏ、Ｃｒ、Ｗで置き換
える場合には、総置換量で１０重１％以下になるように
することが好ましい。また、その他に特性を改善するた
めにＣｕ−ＡＪ２、Ｓ ｉ 、 Ｔ ｉ等の添加も可能
である。In addition, when a part of Fe is replaced with Mo, Cr, or W in this way, it is preferable that the total amount of substitution is 10 weight or less and 1% or less. In addition, it is also possible to add Cu-AJ2, Si, Ti, etc. to improve the properties.
このＮｂパーマロイからなる磁性金属薄板の厚さは、０
，１１１１１〜０．５ｎｌの範囲が好ましく、Ｎｂパー
マロイからなる薄板の厚さが０．１１′Ｉｕｎ未満であ
ると変形の生じる可能性が高（、０，１ｍｍ〜０．５ｍ
ｍ＋１１を超えると磁気特性が劣化し、また従来材であ
っても ０．５Ｉｎｌｌｌを超えれば変形しにくくなり
、本発明の意図する効果は得られない。The thickness of this magnetic metal thin plate made of Nb permalloy is 0.
, 11111 to 0.5 nl is preferable, and if the thickness of the thin plate made of Nb permalloy is less than 0.11'Iun, there is a high possibility that deformation will occur (0.1 mm to 0.5 m).
If it exceeds m+11, the magnetic properties will deteriorate, and even if it is a conventional material, if it exceeds 0.5 Inll, it becomes difficult to deform, and the intended effect of the present invention cannot be obtained.
本発明の小型磁性コアは、例えば次のようにして作成さ
れる。The small magnetic core of the present invention is produced, for example, as follows.
すなわちまず、Ｎｂパーマロイからなる所定の厚さの薄
板を、例えばプレス加工によって所定の形状に打ち抜き
加工し、次いで所定形状にした薄板にスプレー法等によ
りＡｌ２Ｏ２やＭｇＯ等の無機質微粉末を粉付けして、
並列してまたは並列せずにトレー上に配置して８００℃
〜１０００℃程度で磁性焼鈍を行う。次に、この薄板を
ボビンに組み込んで小型磁性コアを完成する。That is, first, a thin plate of a predetermined thickness made of Nb permalloy is punched into a predetermined shape by, for example, press processing, and then fine inorganic powder such as Al2O2 or MgO is powdered onto the thin plate formed into a predetermined shape by a spray method or the like. hand,
Placed on trays in parallel or non-parallel to 800℃
Magnetic annealing is performed at about ~1000°C. Next, this thin plate is assembled into a bobbin to complete a small magnetic core.
（作 用）
本発明の小型磁性コアにおいて、磁性金属薄板の材質と
してＮｂパーマロイを使用しており、このＮｂパーマロ
イは特性がよいので、従来材と同特性を得るための焼鈍
時の温度は、従来の材質と比べて低温で可能となるため
、拡散接合を起す可能性が減少し、またこのＮｂパーマ
ロイはビツカーズ硬度で１４０〜２５０と硬く、これら
により並列しないでも磁性焼鈍を行うことが可能となる
。(Function) In the small magnetic core of the present invention, Nb permalloy is used as the material of the magnetic metal thin plate, and since this Nb permalloy has good properties, the temperature during annealing to obtain the same properties as conventional materials is as follows: Compared to conventional materials, this can be done at lower temperatures, reducing the possibility of diffusion bonding.Also, this Nb permalloy has a Vickers hardness of 140 to 250, making it possible to perform magnetic annealing without paralleling. Become.
また、磁性金属薄板自体のｌブさを従来のものに比べさ
らに薄くすることも可能となる。Further, it is also possible to make the thickness of the magnetic metal thin plate itself even thinner than that of the conventional one.
（実施例） 次に、本発明の実施例について説明する。(Example) Next, examples of the present invention will be described.
実施例１〜４
次表に示す組成を有するＮｂパーマロイをそれぞれ使用
して、常法に従って厚さ約０．３５ｍ１１まで加工した
後、打ち抜きプレスにより所望のＥ形状にそれぞれプレ
ス加工した。次いで、このＥ形状の薄板にアルミナ粉末
を粉付けし、並列させずにトレーに載せ、水素ガス雰囲
気中、約１０００°Ｃで６０分間加熱して磁性焼鈍を行
った。次に、この薄板をボビンに組込み小型磁性コアを
それぞれ作製しな。Examples 1 to 4 Nb permalloy having the composition shown in the table below was processed according to a conventional method to a thickness of about 0.35 m11, and then pressed into a desired E shape using a punching press. Next, this E-shaped thin plate was powdered with alumina powder, placed on a tray without being lined up, and magnetically annealed by heating at about 1000°C for 60 minutes in a hydrogen gas atmosphere. Next, incorporate this thin plate into a bobbin to create each small magnetic core.
このようにして得られた小型磁性コアをそれぞれ用いて
透磁率を測定したところ、それぞれ良好な値を示した。When the magnetic permeability was measured using each of the small magnetic cores obtained in this way, each showed a good value.
この結果もあわせて次表に示す。The results are also shown in the table below.
また、これらのＮｂパーマロイからなるｊ板は、それぞ
れ製造工程中における変形等の不良発生率も著しく少な
かった。Furthermore, these J-plates made of Nb permalloy had a significantly lower incidence of defects such as deformation during the manufacturing process.
（以下余白）
′、発明の効果］
以ト、説明したように本発明の小型磁性コアによｔＬば
、磁性金属薄板をＮｂパーマロイによって形成している
ので、従来のＦｅＮｉ系合金に比べ硬度がより大きくな
り、磁性焼鈍を並列せずに行うことがｔｉＴ能となり、
これにより磁性焼鈍の前工程の工数を大幅に短縮ずろこ
とができ、大幅なコ、ストタウンが用油となる。(Blank below) ', Effects of the invention] As explained above, in the small magnetic core of the present invention, the thin magnetic metal plate is made of Nb permalloy, so it has a hardness compared to the conventional FeNi alloy. It becomes larger, and performing magnetic annealing without parallel is TiT capability.
As a result, the number of man-hours in the pre-process of magnetic annealing can be significantly reduced, and a large amount of cost and labor can be saved.
Claims (2)
させてなる小型磁性コアにおいて、前記磁性金属薄板が
Ｎｂパーマロイからなることを特徴とする小型磁性コア
。(1) A small magnetic core formed by laminating a plurality of thin magnetic metal plates formed into a predetermined shape, characterized in that the thin magnetic metal plates are made of Nb permalloy.
範囲である特許請求の範囲第１項記載の小型磁性コア。(2) The small magnetic core according to claim 1, wherein the thickness of the magnetic metal thin plate is in the range of 0.1 mm to 0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62046899A JPH07114167B2 (en) | 1987-03-03 | 1987-03-03 | Magnetic core for small transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62046899A JPH07114167B2 (en) | 1987-03-03 | 1987-03-03 | Magnetic core for small transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63213908A true JPS63213908A (en) | 1988-09-06 |
| JPH07114167B2 JPH07114167B2 (en) | 1995-12-06 |
Family
ID=12760214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62046899A Expired - Lifetime JPH07114167B2 (en) | 1987-03-03 | 1987-03-03 | Magnetic core for small transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07114167B2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053224A (en) * | 1973-09-12 | 1975-05-12 | ||
| JPS5144490A (en) * | 1974-09-13 | 1976-04-16 | Kobe Steel Ltd | Konaiirekaekikansha no jidontenhoshiki |
| JPS5450919A (en) * | 1977-09-30 | 1979-04-21 | Matsushita Electric Ind Co Ltd | Manufacture of iron core |
-
1987
- 1987-03-03 JP JP62046899A patent/JPH07114167B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053224A (en) * | 1973-09-12 | 1975-05-12 | ||
| JPS5144490A (en) * | 1974-09-13 | 1976-04-16 | Kobe Steel Ltd | Konaiirekaekikansha no jidontenhoshiki |
| JPS5450919A (en) * | 1977-09-30 | 1979-04-21 | Matsushita Electric Ind Co Ltd | Manufacture of iron core |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07114167B2 (en) | 1995-12-06 |
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