JPS62224914A - Manufacture of magnetic core - Google Patents
Manufacture of magnetic coreInfo
- Publication number
- JPS62224914A JPS62224914A JP61067095A JP6709586A JPS62224914A JP S62224914 A JPS62224914 A JP S62224914A JP 61067095 A JP61067095 A JP 61067095A JP 6709586 A JP6709586 A JP 6709586A JP S62224914 A JPS62224914 A JP S62224914A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic core
- magnetic
- temperature
- heat treatment
- cooling
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 11
- 239000010941 cobalt Substances 0.000 claims abstract description 8
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001004 magnetic alloy Inorganic materials 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract description 5
- 239000000110 cooling liquid Substances 0.000 abstract description 4
- 238000004299 exfoliation Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 description 1
- 244000299906 Cucumis sativus var. sativus Species 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000035606 childbirth Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
【発明の詳細な説明】 （発明の技術分野） 本発明は磁心の製造方法に関する。[Detailed description of the invention] (Technical field of invention) The present invention relates to a method for manufacturing a magnetic core.
（発明の技術的背景どその問題点）
磁性合金薄体を巻回してなる磁心、例えば可飽和コア等
を製造づる場合は、磁性合金解体を巻回して磁心を成形
後キコーリ一点以上結晶化温度以下で熱処理を行う。そ
の後非晶質合金薄帯、特にコバル１ｉｃｏ）系非晶質合
金薄帯Ｊ：りなる磁心については熱処理温度からの急冷
、例えば水中急冷により磁気時？！！（低保磁力、高角
型比）の向上を８１っている。この急冷工程においてキ
ューリ一点を通過する際の冷却速度は大きいほど磁気時
ｆｌ−は向上Ｊる。しかし、キューリ一点以上という高
湿の熱処理温度からの急冷工程には次のような問題点が
あった。すなわち、急冷時の急激な温度変化にＪ：り薄
帯の急速な熱収縮が起こり、磁心の外周側と内周側の熱
収縮の差等の原因にまり薄帯の切れ、はがれ、変形等を
生じることがあった。この現象は、薄帯の厚さが極めて
薄く非晶質合金薄帯に生じやすい。(Technical background of the invention and other problems) When manufacturing a magnetic core made by winding a thin magnetic alloy, such as a saturable core, the magnetic alloy is wound to form the magnetic core, and then the crystallization temperature at one or more points is lowered. Heat treatment is performed below. After that, the amorphous alloy ribbon, especially the cobal type amorphous alloy ribbon J: The magnetic core is rapidly cooled from the heat treatment temperature, for example, by quenching in water. ! ! (Low coercive force, high squareness ratio) improvements of 81%. In this quenching process, the higher the cooling rate when passing through one Curie point, the more the fl- in the magnetic state improves. However, the rapid cooling process from a high humidity heat treatment temperature of one cucumber or higher has the following problems. In other words, rapid temperature changes during rapid cooling cause rapid thermal contraction of the ribbon, and the ribbon may break, peel, deform, etc. due to the difference in thermal contraction between the outer and inner circumferential sides of the magnetic core. may occur. This phenomenon tends to occur in amorphous alloy ribbons where the thickness of the ribbon is extremely thin.
本発明は上記問題を解消し、磁心の磁気特竹を損ねるこ
となく急冷の際の磁心の切れ、はがれ、変形等を防止す
る磁心の製造方法を提供することを目的とづる。It is an object of the present invention to solve the above-mentioned problems and to provide a method for manufacturing a magnetic core that prevents breakage, peeling, deformation, etc. of the magnetic core during rapid cooling without damaging the magnetic properties of the magnetic core.
（発明の概要〕
本発明は、磁性合金薄体、例えばコバルト（ＣＯ）系非
晶質台金解帯を巻回してなる磁心を熱処理する際、この
熱処即後の冷却を加熱により温度がほぼ一定に保たれた
温液により行うものである。温液としては７０℃以上１
２０℃以下、好ましくは７０℃以上１００℃以下の液体
を用いることが好ましい。(Summary of the Invention) The present invention provides a method for heat-treating a magnetic core formed by winding a magnetic alloy thin body, such as a cobalt (CO)-based amorphous base metal, by heating the cooling immediately after the heat treatment. It is carried out using a hot liquid that is kept almost constant.The hot liquid is 70℃ or higher1.
It is preferable to use a liquid having a temperature of 20°C or lower, preferably 70°C or higher and 100°C or lower.
磁性合金薄体を巻回してなる磁心をキューリ一点以上結
晶化温度以下で熱処理し、その後急冷■稈を行うことに
にり磁気特性の向上を効果的に１０られるｂのとして非
晶質合金薄帯、その中でもＣＯ系非晶質合金薄帯がある
。本発明ではこの急冷工程の冷却液として温度をほぼ一
定に維持した温液、特に７０℃以上１２０℃以下、好ま
しくは７０℃以上１００℃以下の液体を用いる。An amorphous alloy thin film can be effectively improved in magnetic properties by heat-treating a magnetic core formed by winding a thin magnetic alloy material at a temperature below the crystallization temperature at one point or more, followed by rapid cooling. Among them, there is a CO-based amorphous alloy ribbon. In the present invention, a hot liquid whose temperature is kept substantially constant is used as a cooling liquid in this quenching step, particularly a liquid having a temperature of 70° C. or more and 120° C. or less, preferably 70° C. or more and 100° C. or less.
磁心の急冷方法は磁心を冷却液に浸すか、あるいは冷却
液を噴ぎか（）る等により行う。The magnetic core is rapidly cooled by immersing the magnetic core in a cooling liquid or by spraying the magnetic core with a cooling liquid.
本発明によれば冷却液の液温を従来の冷却液より加熱に
よって上げることににす、冷却時の薄帯の熱収縮にＪ：
る歪を少なくＪることができる。この効果は、冷却液の
温度をわずかに上昇させることにより顕著に現れる。ま
た、ｌｑられる磁心の磁気特性は、冷７ＪＩ １１５の
キコーリ一点通過速度により影響されるが、この速度は
従来とほとんど変らず磁気特性を損ねることは＜Ｔい。According to the present invention, the liquid temperature of the coolant is increased by heating compared to the conventional coolant, and J:
It is possible to reduce distortion. This effect becomes more noticeable by slightly increasing the temperature of the coolant. In addition, the magnetic properties of the magnetic core, which is determined by lq, are influenced by the Kikori single point passing speed of Cold 7JI 115, but this speed is almost unchanged from the conventional one and the magnetic properties are not impaired.
本発明の効果は、温液の温度が７０℃以上の場合に顕著
であるが余り高いと磁気特性が低下でるため上記した範
囲が好ましい。また、本発明を実施Ｊる際磁心の上下面
を例えば網目状の治具等で挾持して固定することにより
、冷却の際の熱収縮による磁心の変形を更に防」１する
ことができる。このｌｊ法によれば治具に磁心を１夾Ｊ
ｉ’＋して急冷工程を行った後、その後工Ｐｉ！ｃある
乾燥をそのままの状Ｂ−ｃ行うことが容易となる。The effects of the present invention are noticeable when the temperature of the hot liquid is 70° C. or higher, but if the temperature is too high, the magnetic properties deteriorate, so the above range is preferable. Further, when carrying out the present invention, by clamping and fixing the upper and lower surfaces of the magnetic core with, for example, a mesh-like jig, deformation of the magnetic core due to thermal contraction during cooling can be further prevented. According to this lj method, 1 J of magnetic core is placed in the jig.
After applying i'+ and performing the quenching process, the subsequent process Pi! It becomes easy to perform a certain drying process as it is.
治具の材質は、磁心の熱処理に耐え得るものを用いる。The material used for the jig is one that can withstand the heat treatment of the magnetic core.
３一
本発明は熱処理による熱収縮の影響が大ぎな材質（例え
ばＣＯ系非晶質合金）あるいは大型の磁心に対して特に
有効である。31 The present invention is particularly effective for materials that are significantly affected by thermal shrinkage due to heat treatment (for example, CO-based amorphous alloys) or for large magnetic cores.
〔発明の実施例）
実施例１
ＣＯ系非晶質合金薄帯（厚さ約２０μ）を巻回し、外径
７０１ＷＩＩ１１内径４０ｎ＋ｍ、高さ２０ｍｍの磁心
を２０個成形した。この磁心を約４００℃で３０分間の
熱処理を施し、その後１０個の磁心を約８５℃に保たれ
た温水槽中に浸し冷却した。また比較として、残りの磁
心（１０個）を室温（約２０℃）の水槽中に浸して冷却
を行った。[Embodiments of the Invention] Example 1 A CO-based amorphous alloy ribbon (thickness: about 20 μm) was wound to form 20 magnetic cores each having an outer diameter of 701 WII11, an inner diameter of 40 nm+m, and a height of 20 mm. This magnetic core was heat-treated at about 400° C. for 30 minutes, and then 10 magnetic cores were immersed in a hot water bath kept at about 85° C. and cooled. For comparison, the remaining magnetic cores (10 pieces) were cooled by immersing them in a water bath at room temperature (approximately 20° C.).
この結果、室温の水を用いて冷却したものは２個の磁心
に変形あるいは薄帯のキレが認められたが、本発明によ
るものには変形等を生じたものはなかった。また、ＤＣ
Ｂ−１−１特性も保磁力１−ＩＣはＯ，ｏｏ７〜０．０
１０ｅ （エルステッド）のｔ！囲で良好であり、従
来の急冷により得られた磁心と比較しても特性への劣化
等は認められなかった。また、本発明によれば液温を加
熱により一定に保つため（ｑられる磁心の状態を一定に
保つことができるととｂに、季節による液温の差がなく
なり均一な特性が１ηられる利点がある。As a result, the two magnetic cores cooled with room temperature water were found to be deformed or the ribbons were torn, but none of the magnetic cores according to the present invention suffered from any deformation. Also, D.C.
B-1-1 characteristics also have coercive force 1-IC of O, oo7~0.0
10e (Oersted) t! Even when compared with magnetic cores obtained by conventional rapid cooling, no deterioration in characteristics was observed. In addition, according to the present invention, since the liquid temperature is kept constant by heating (q), the state of the magnetic core can be kept constant, and b) there is no difference in liquid temperature depending on the season, and uniform characteristics can be achieved by 1η. be.
実施例２
ＣＯ系非晶質合金薄帯を巻回し、外径１５ｎｍ、内径１
０１１高さ５ｍ１ｌｌの磁心を成形した。この磁心を縦
２００ｎｏｎ 、横２００ｍｍ 、深さ５ｍｍの治Ｕ（
ＳＵＳ３０４製、線径０，５ｍｍ、隙間２ＩＩｌｌ平方
）に多数個並べて配置し、この上部に同様の網よりなる
治具を重ね固定した。これらを約４００℃で３０分間の
熱処理を行い、その後約７０℃に液温を保った温水槽中
に浸し冷却を行った。この結果、得られた磁心において
急冷による変形等は全く認められなかった。又、磁気特
性（△ＣＢ−Ｈ特性）も保磁力＋−＋ｃは０．１３〜０
．１６００（エルステッド）角型比Ｂｒ／１３１は９ｆ
３〜９９．５％と、従来の方法でｌ？られる磁心とＪｉ
’ｉＪＩの結果を得た。Example 2 A CO-based amorphous alloy ribbon is wound with an outer diameter of 15 nm and an inner diameter of 1
011 A magnetic core with a height of 5 ml was molded. This magnetic core has a length of 200mm, a width of 200mm, and a depth of 5mm.
A large number of wires made of SUS304, wire diameter 0.5 mm, and a gap of 2IIll square) were arranged side by side, and a jig made of a similar net was stacked and fixed on top of the wires. These were heat-treated at about 400°C for 30 minutes, and then cooled by immersing them in a hot water bath whose liquid temperature was maintained at about 70°C. As a result, no deformation due to rapid cooling was observed in the obtained magnetic core. Also, the magnetic properties (△CB-H properties) have a coercive force +-+c of 0.13 to 0.
．． 1600 (Oersted) square ratio Br/131 is 9f
3 to 99.5%, l? magnetic core and Ji
'I got the iJI results.
本実施例のように、網目状の冶具を複数段重ねる場合に
おいても磁気特性には何ら影響しない。また、治具を用
いることにより、冷却工程後の乾燥工程が容易になる。Even when mesh-like jigs are stacked in multiple stages as in this embodiment, the magnetic properties are not affected at all. Furthermore, by using a jig, the drying process after the cooling process is facilitated.
また、この網目状の治具を用いる方法は特に熱収縮の影
響を大きく受ける大型の磁心の熱処理に対して有効であ
る。Furthermore, the method using this mesh-like jig is particularly effective for heat treatment of large magnetic cores that are significantly affected by thermal contraction.
本発明の製造方法によれば、磁心の磁気特性を損ねるこ
となく熱処理後の急冷による磁心の切れ、はがれ、変形
等を防止することができ、磁心の歩留まりが向上し、出
産上極めて有利である。According to the manufacturing method of the present invention, it is possible to prevent breakage, peeling, deformation, etc. of the magnetic core due to rapid cooling after heat treatment without impairing the magnetic properties of the magnetic core, and the yield of the magnetic core is improved, which is extremely advantageous for childbirth. .
Claims (4)
、加熱により温度がほぼ一定に保たれた温液にて冷却す
ることを特徴とする磁心の製造方法。(1) A method for manufacturing a magnetic core, which comprises heat-treating a magnetic core formed by winding a thin magnetic alloy, and then cooling the core with a hot liquid whose temperature is kept substantially constant by heating.
１項に記載の磁心の製造方法。(2) The method for manufacturing a magnetic core according to claim 1, wherein the hot liquid is a liquid having a temperature of 70°C or higher.
範囲第１項または第２項に記載の磁心の製造方法。(3) The method for manufacturing a magnetic core according to claim 1 or 2, wherein the magnetic alloy thin body is an amorphous alloy ribbon.
る特許請求の範囲第３項に記載の磁心の製造方法。(4) The method for manufacturing a magnetic core according to claim 3, wherein the amorphous alloy ribbon is a cobalt-based amorphous alloy ribbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61067095A JPS62224914A (en) | 1986-03-27 | 1986-03-27 | Manufacture of magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61067095A JPS62224914A (en) | 1986-03-27 | 1986-03-27 | Manufacture of magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62224914A true JPS62224914A (en) | 1987-10-02 |
Family
ID=13334978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61067095A Pending JPS62224914A (en) | 1986-03-27 | 1986-03-27 | Manufacture of magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62224914A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60119254U (en) * | 1984-01-20 | 1985-08-12 | セイレイ工業株式会社 | Attachment/detaching device for grain culm rods, etc. in threshing machines |
-
1986
- 1986-03-27 JP JP61067095A patent/JPS62224914A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60119254U (en) * | 1984-01-20 | 1985-08-12 | セイレイ工業株式会社 | Attachment/detaching device for grain culm rods, etc. in threshing machines |
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