JPS62226603A - Amophous dust core and manufacture thereof - Google Patents
Amophous dust core and manufacture thereofInfo
- Publication number
- JPS62226603A JPS62226603A JP6996386A JP6996386A JPS62226603A JP S62226603 A JPS62226603 A JP S62226603A JP 6996386 A JP6996386 A JP 6996386A JP 6996386 A JP6996386 A JP 6996386A JP S62226603 A JPS62226603 A JP S62226603A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- amorphous
- magnetic core
- core
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000428 dust Substances 0.000 title abstract description 3
- 239000000843 powder Substances 0.000 claims abstract description 88
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 238000002425 crystallisation Methods 0.000 claims abstract description 8
- 230000008025 crystallization Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 230000004907 flux Effects 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims abstract description 3
- 229910052719 titanium Inorganic materials 0.000 claims abstract 3
- 229910052726 zirconium Inorganic materials 0.000 claims abstract 3
- 238000005056 compaction Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910052790 beryllium Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052738 indium Inorganic materials 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910052762 osmium Inorganic materials 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052702 rhenium Inorganic materials 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- -1 and Z is B Inorganic materials 0.000 claims 2
- 229910052735 hafnium Inorganic materials 0.000 claims 2
- 229910052758 niobium Inorganic materials 0.000 claims 2
- 229910052715 tantalum Inorganic materials 0.000 claims 2
- 229910052721 tungsten Inorganic materials 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 229910052802 copper Inorganic materials 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000012212 insulator Substances 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- 238000010298 pulverizing process Methods 0.000 claims 1
- 229910052709 silver Inorganic materials 0.000 claims 1
- 229910052720 vanadium Inorganic materials 0.000 claims 1
- 229910052727 yttrium Inorganic materials 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 15
- 229910045601 alloy Inorganic materials 0.000 abstract description 8
- 239000000956 alloy Substances 0.000 abstract description 8
- 239000003822 epoxy resin Substances 0.000 abstract description 4
- 229920000647 polyepoxide Polymers 0.000 abstract description 4
- 239000011810 insulating material Substances 0.000 abstract description 2
- 239000010953 base metal Substances 0.000 abstract 1
- 229910001004 magnetic alloy Inorganic materials 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 229910000889 permalloy Inorganic materials 0.000 description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 235000019353 potassium silicate Nutrition 0.000 description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000005011 phenolic resin Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009689 gas atomisation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
- H01F1/15358—Making agglomerates therefrom, e.g. by pressing
- H01F1/15366—Making agglomerates therefrom, e.g. by pressing using a binder
- H01F1/15375—Making agglomerates therefrom, e.g. by pressing using a binder using polymers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はチョークコイル、ノイズフィルター等高周波で
使用されるインダクターに好適なアモルファス圧粉磁心
およびその製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an amorphous powder magnetic core suitable for inductors used at high frequencies, such as choke coils and noise filters, and a method for manufacturing the same.
従来、チョークコイルやノイズフィルター等の磁心とし
ては鉄、ＭｏパーマロイやＦｅ−５ｉ−Ａｌ圧粉磁心等
が用いられていた。Conventionally, iron, Mo permalloy, Fe-5i-Al powder magnetic cores, etc. have been used as magnetic cores for choke coils, noise filters, and the like.
鉄圧粉磁心はコア損失が大きい、透磁率が低い、直流重
畳特性が悪い等の問題点がある。Iron powder magnetic cores have problems such as large core loss, low magnetic permeability, and poor direct current superposition characteristics.
Ｍｏパーマロイ圧粉磁心やＦ ｅ −Ｓ ｉ −Ａ ｌ
圧粉磁心は飽和磁束密度がやや低く、コア損失も比較的
大きい等問題点がある。Mo permalloy powder magnetic core and F e -S i -A l
Powder magnetic cores have problems such as a rather low saturation magnetic flux density and relatively large core loss.
近年アモルファス合金が高透磁率、低損失、電気抵抗が
高く周波数依存性に優れるため各種磁性部品への適用が
行なわれている。アモルファス合金を圧粉磁心にしよう
とする試みはたとえば特開昭５５−１３３５０７号公報
に記載されている。In recent years, amorphous alloys have been applied to various magnetic components because of their high magnetic permeability, low loss, high electrical resistance, and excellent frequency dependence. An attempt to make a powder magnetic core from an amorphous alloy is described, for example, in Japanese Patent Application Laid-Open No. 133507/1983.
しかし上記のアモルファス圧粉磁心は組成によっては十
分特性を発揮できない問題点がある。However, the amorphous powder magnetic core described above has a problem in that depending on its composition, it may not be able to exhibit sufficient characteristics.
たとえば、Ｆｅ−５ｉＢ系アモルファス合金等の Ｆｅ
基アモルファス合金の場合は飽和磁束密度は高いが磁歪
定数が大きいため圧粉成形する際のひずみにより透磁率
や、コア損失等の軟磁気特性が劣化する問題点がある。For example, Fe-5iB amorphous alloy etc.
In the case of base amorphous alloys, the saturation magnetic flux density is high, but since the magnetostriction constant is large, there is a problem that soft magnetic properties such as magnetic permeability and core loss deteriorate due to strain during compaction.
一方Ｃｏ−５ｉ−Ｂ系アモルファス合金等の金属−非金
属系のＣｏ基アモルファス合金の場合は磁歪定数が小さ
く圧粉成形する際のひずみによる磁気特性の劣化は小さ
いが結晶化温度の高い組成は飽和磁束密度がＭｏパーマ
ロイやＦ ｅ −Ｓ ｉ −Ａ １合金と同等あるいは
それ以下で直流重畳特性はさほど優れていない。On the other hand, metal-nonmetallic Co-based amorphous alloys such as Co-5i-B amorphous alloys have a small magnetostriction constant, and deterioration of magnetic properties due to strain during compaction is small, but compositions with high crystallization temperatures The saturation magnetic flux density is equal to or lower than that of Mo permalloy or Fe-S i-A 1 alloy, and the DC superimposition characteristics are not so excellent.
本発明の目的は従来の圧粉磁心より直流重畳特性が優れ
、コア損失が低く、透磁率の周波数特性に優れたアモル
ファス圧粉磁心およびその製造方法を提供することであ
る。An object of the present invention is to provide an amorphous powder magnetic core that has superior DC superimposition characteristics, lower core loss, and superior frequency characteristics of magnetic permeability than conventional powder magnetic cores, and a method for manufacturing the same.
本発明はＣＯ基の金属−金属系アモルファス合金粉末よ
り製造され粉末間が絶縁されていることを特徴とするア
モルファス圧粉磁心およびその製造方法である。The present invention is an amorphous powder magnetic core manufactured from a CO-based metal-metal amorphous alloy powder and characterized in that the powder is insulated, and a method for manufacturing the same.
本発明において、 ＣＯ基の金属−金属系アモルファス
合金粉末を用いるのは飽和磁束密度が高くかつ磁歪定数
が小さいため圧粉成形後の磁気特性の劣化が小さいため
である。また上記合金粉末は同程度の飽和磁束密度を有
するＣＯ基基金−非金属系アモルファスより結晶化温度
が一般に高く、高皿で圧粉成形できるため密度が上がり
やすい利点がある。In the present invention, the CO-based metal-metal amorphous alloy powder is used because it has a high saturation magnetic flux density and a small magnetostriction constant, so that the deterioration of magnetic properties after compaction is small. Further, the above-mentioned alloy powder generally has a higher crystallization temperature than a CO-based nonmetallic amorphous having a similar saturation magnetic flux density, and has the advantage that the density can be easily increased because it can be compacted in a high plate.
特に１組成式 ％式％ Ｙから選ばれる少なくとも１種の元素、ＺはＢ。Especially one composition formula %formula% At least one element selected from Y, Z is B.
Ｃ，Ｓｉ、Ｇｅ、Ｐ、Ｉｎ、Ｓｎ、Ｓｂ、Ｂｅから選ば
れる少なくとも１種の元素であり、
○≦α≦０．１．○≦ｂ≦０．１．０≦Ｃ≦０．１．６
≦Ｘ≦２０．Ｏ≦ｙ≦５
なる条件を満足する Ｃｏ基のアモルファス合金粉末を
用いた場合高周波磁気特性、直流重畳特性が優れたもの
が得られる。At least one element selected from C, Si, Ge, P, In, Sn, Sb, and Be, ○≦α≦0.1. ○≦b≦0.1.0≦C≦0.1.6
≦X≦20. When a Co-based amorphous alloy powder that satisfies the condition O≦y≦5 is used, a product with excellent high frequency magnetic properties and direct current superimposition properties can be obtained.
また、組成式 ％式％ ら選ばれる少なくとも１種の元素、Ｍ′はＶ。Also, the composition formula %formula% At least one element selected from the above, M' is V.
Ｃｒ、Ｍｏ、Ｒｕ、Ｒｅ、Ｏｓ、Ｉｒ、Ｐｄ、Ｐｔ、Ｃ
ｕ。Cr, Mo, Ru, Re, Os, Ir, Pd, Pt, C
u.
Ａｇ１１、Ａｕから選ばれる少なくとも１種の元素、２
はＢ、 Ｃ，Ｓｉｔ Ｇｅ、 Ｐ、 Ｉｎ、 Ｓｎ、
Ｓｂ。At least one element selected from Ag11 and Au, 2
are B, C, Sit Ge, P, In, Sn,
Sb.
Ｂｅから選ばれる少なくとも１種の元素であり、Ｏ≦α
≦０．１．０≦ｂ≦０．１．０≦Ｃ≦０．１．６≦Ｘ≦
２０．ＷＳｉ２，０≦ｙ≦５なる条件を満足する Ｃｏ
基のアモルファス合金粉末を用いた場合経時変化が小さ
いものが得られる。At least one element selected from Be, O≦α
≦0.1.0≦b≦0.1.0≦C≦0.1.6≦X≦
20. Co satisfies the condition WSi2,0≦y≦5
When the base amorphous alloy powder is used, a product with little change over time can be obtained.
本発明に用いる Ｃｏ基金属−金属系アモルファス合金
粉末は水アトマイズ法、超音波ガスアトマイズ法１回転
液中に溶湯を噴出する方法やアモルファス薄帯を作製後
機械的に粉砕する等の方法により作製される。場合によ
っては、圧粉成形する前に上記粉末を結晶化温度以下の
温度で熱処理を行なっても良い。圧粉成形の際は粒子間
の絶縁と磁心の強度を上げるため、エポキシ樹脂、尿素
樹脂、水ガラス、フェノール樹脂、リン酸アルミニウム
、ステアリン酸亜鉛等のバインダーを添加する。The Co-based metal-metal amorphous alloy powder used in the present invention is produced by a water atomization method, an ultrasonic gas atomization method, a method in which molten metal is ejected into a single rotation solution, or a method in which an amorphous ribbon is produced and then mechanically pulverized. Ru. In some cases, the powder may be heat treated at a temperature below the crystallization temperature before compacting. During powder compaction, binders such as epoxy resin, urea resin, water glass, phenol resin, aluminum phosphate, and zinc stearate are added to increase the insulation between particles and the strength of the magnetic core.
また場合によっては、圧粉成形前にアモルファス合金粉
末表面を酸化させたり、絶縁物で被覆しても良い９この
場合、圧粉成形後絶縁がこわれにくい。In some cases, the surface of the amorphous alloy powder may be oxidized or coated with an insulating material before compacting.9 In this case, the insulation is less likely to be damaged after compacting.
圧粉成形後の際アモルファス合金粉末を結晶化温度と結
晶化温度より１５０’Ｃ低い温度の間の温度範囲に加熱
しておくと成形の際密度が上がり直流重畳特性が改善さ
れる。If the amorphous alloy powder is heated to a temperature range between the crystallization temperature and a temperature 150'C lower than the crystallization temperature after compaction, the density will increase during compaction and the DC superimposition characteristics will be improved.
また圧粉成形後磁場中あるいは磁場なしで熱処理を行な
うことにより透磁率や、コア損失等を改善することがで
きる。Furthermore, magnetic permeability, core loss, etc. can be improved by performing heat treatment in a magnetic field or without a magnetic field after compaction.
磁場中熱処理はキュリ一温度以下で行ない、場合によっ
ては回転磁場中で行なう６
〔実施例〕
以下本発明を実施例に従って説明する。The heat treatment in a magnetic field is carried out at a temperature below one Curie temperature, and in some cases in a rotating magnetic field.6 [Examples] The present invention will be described below with reference to Examples.
実施例Ｉ
Ｃｏ、７５Ｎｂｏ５Ｚ ｒ、 Ｂ ４アモルファス合金
薄帯を作製し、機械的に粉砕し粉末とした。次にこの粉
末に水ガラス、リン酸アルミニウム粉末、フェノール樹
脂粉末、アセトン、メタノールを混ぜた後、金型を３６
０℃に加熱し、１５Ｔ／ｄの圧力で２０分保持し圧粉成
形した。得られた外径２１ｎｍ、内径１２−１高さ８ｍ
ｍの圧粉磁心をエポキシ樹脂で粉体コーティングし、磁
気特性を測定した。Example I Co, 75Nbo5Zr, B4 amorphous alloy ribbon was produced and mechanically ground into powder. Next, after mixing water glass, aluminum phosphate powder, phenol resin powder, acetone, and methanol with this powder, the mold was
It was heated to 0° C. and held at a pressure of 15 T/d for 20 minutes to perform powder compaction. Obtained outer diameter 21 nm, inner diameter 12-1 height 8 m
A powder magnetic core of 500 m was powder-coated with epoxy resin, and its magnetic properties were measured.
第１図に直流重畳特性、第２図に実効透磁率の周波数依
存性を示す。比較のため金属−非金属系のアモルファス
合金（Ｆｅ、３．７Ｃｒ、３Ｓｉ１４ｓＢ ９．、 、
Ｃｏ７ｔ、、 Ｆｅｏ、Ｍｎ、、、 Ｓ ｉｌ、 Ｂ
ｇ）粉末を用いた圧粉磁心、 ＭＯパーマロイ圧粉磁心
についても示す。Figure 1 shows the DC superimposition characteristics, and Figure 2 shows the frequency dependence of the effective magnetic permeability. For comparison, metal-nonmetal amorphous alloy (Fe, 3.7Cr, 3Si14sB 9.,
Co7t,, Feo, Mn,, S il, B
g) Powder magnetic core using powder, MO permalloy powder magnetic core is also shown.
本発明によるアモルファス圧粉磁心は従来の圧粉磁心よ
り直流重畳特性、実効透磁率の周波数依存性ともに優れ
ており、平滑用チョークやノーマルモードノイズフィル
ター用チョークに最適である。The amorphous powder magnetic core according to the present invention is superior to conventional powder magnetic cores in both DC superimposition characteristics and frequency dependence of effective magnetic permeability, and is ideal for smoothing chokes and chokes for normal mode noise filters.
実施例２
Ｃｏｌｌｓ Ｃｒ、 Ｎｂ、Ｚｒ、アモルファス合金粉
末を超音波ガスアトマイズ法により作製し、次にこの粉
末に水ガラス、リン酸アルミニウム粉末、フェノール樹
脂粉末、アセトン、メタノールを混ぜた後金型を３５０
℃に加熱し、１５Ｔ／ａ＋ｆの圧力で２０分保持し圧粉
成形した。？！）られた外径２１ｎｙａ、内径１２ａｍ
、高さ８膿の圧粉磁心をエポキシ樹脂で粉体コーティン
グし、周波数１００ＫＨｚにおけるコア損失のＢＩ１１
依存性をｄ（す定した。第３図にその結果を示す。比較
のため全屈−非金属系のアモルファス合金（Ｆ ｅｖ
３．’ＩＣｒ２３ Ｓ １．＋４．Ｓ Ｂ ｇ、５ Ｈ
Ｃ０７１，ｌ、 Ｆ ｅｏ、４ Ｍｎ６．（Ｉ Ｓ １
１３ Ｂ ｇ ）粉末を用いた圧粉磁心、Ｍｏパーマロ
イ圧粉磁心についても示す。Example 2 Colls Cr, Nb, Zr, and amorphous alloy powders were prepared by ultrasonic gas atomization, and then water glass, aluminum phosphate powder, phenol resin powder, acetone, and methanol were mixed with the powder, and a mold was heated at 350°C.
It was heated to ℃ and held at a pressure of 15T/a+f for 20 minutes to perform powder compaction. ? ! ) outer diameter 21nya, inner diameter 12am
, a powder magnetic core with a height of 8 pus was powder coated with epoxy resin, and the core loss at a frequency of 100 KHz was BI11.
The dependence was determined to be d (d). The results are shown in Figure 3. For comparison, a total bending-nonmetallic amorphous alloy (F ev
3. 'ICr23 S 1. +4. S B g, 5 H
C071,l, F eo, 4 Mn6. (IS 1
13 B g ) A powder magnetic core using powder and a Mo permalloy powder magnetic core are also shown.
本発明によるアモルファス圧粉磁心は従来のＭｏパーマ
ロイ圧粉磁心よりコア損失が低く。The amorphous powder magnetic core according to the present invention has lower core loss than the conventional Mo permalloy powder magnetic core.
高周波領域で使用する場合発熱が小さく有利である。When used in a high frequency range, it is advantageous because it generates less heat.
実施例３
Ｃｏ、、、Ｍｏ、９Ｎｉ２Ｚｒ７．、Ｂ２アモルファス
合金粉末を溶湯を表面に凹凸がある高速回転ロールに噴
出し分断し、更に高速回転しているロール上で冷却し作
製した。次にこの粉末を回転磁場中で熱処理し、この粉
末に水ガラス、リン酸アルミニウム粉末、フェノール樹
脂粉末、アセトン、メタノールを混ぜた後金型を３５０
℃に加熱し、Ｌ５Ｔ／ｃｍの圧力で３０分保持し、圧粉
成形した。得られた外径２１ｍ、内径１２ｍ、高さ８ｎ
ｎの圧粉磁心をコアケースに入れ、実効透磁率の周波数
依存性を測定した。得られた結果を第４図に示す。Ａは
回転磁場中熱処理を空気中で行ない酸化皮膜を粉末表面
に形成した場合、ＢはＡｒ中で回転磁場中熱処理を行な
った場合である。Example 3 Co, , Mo, 9Ni2Zr7. , B2 amorphous alloy powder was produced by blowing the molten metal onto a high-speed rotating roll with an uneven surface, cutting it into pieces, and then cooling it on the high-speed rotating roll. Next, this powder is heat-treated in a rotating magnetic field, and after mixing water glass, aluminum phosphate powder, phenol resin powder, acetone, and methanol with this powder, the mold is heated to 350°C.
It was heated to ℃ and held at a pressure of L5T/cm for 30 minutes, and compacted. Obtained outer diameter 21m, inner diameter 12m, height 8n
A powder magnetic core of n was placed in a core case, and the frequency dependence of effective magnetic permeability was measured. The results obtained are shown in FIG. A is a case where the heat treatment in a rotating magnetic field is performed in air to form an oxide film on the powder surface, and B is a case where the heat treatment is performed in a rotating magnetic field in Ar.
図かられかるようにあらかじめ粉末表面に絶縁層（酸化
皮膜）を形成し製造した圧粉磁心の方がやや周波数特性
が改善されておりより好ましい。As can be seen from the figure, a dust core manufactured by forming an insulating layer (oxide film) on the powder surface in advance is more preferable because the frequency characteristics are slightly improved.
実施例４
第１表に本発明によるアモルファス圧粉磁心と従来の圧
粉磁心の１０ＫＨｚにおける増分透磁率μ４が２７１に
なる直流重畳磁界Ｈｉ）Ｃを比較して示す。圧粉磁心の
形状は外径２１ｎ＊、内径１２ＩＩＩ１１、高さ８ｍで
ある。Example 4 Table 1 shows a comparison between the amorphous powder magnetic core according to the present invention and the conventional powder magnetic core in terms of direct current superimposed magnetic field Hi)C at which the incremental magnetic permeability μ4 at 10 KHz is 271. The powder magnetic core has an outer diameter of 21n*, an inner diameter of 12III11, and a height of 8m.
本発明による磁心は従来のＭｏパーマロイ圧粉磁心や金
属−非金属系アモルファス圧粉磁心よりＨＤＣが大きく
直流重畳特性が改善されており、チョークコイル等に適
している。The magnetic core according to the present invention has a larger HDC and improved DC superposition characteristics than the conventional Mo permalloy powder magnetic core or metal-nonmetal amorphous powder magnetic core, and is suitable for choke coils and the like.
実施例５
Ｃｏ、、ＭｎｌＭｏ１Ｎｂ、Ｚｒ４Ｂ、アモルファス合
金粉末に水ガラス等を混ぜ、圧粉成形を行なった後表面
をコーティングした場合Ｃと、圧粉成形、を行なった後
回転磁場中で熱処理を行ないコーティングした場合りの
１ＯＫＨｚの実効透磁率μｅ□。Ｉ（を比較して第３表
に示す。Example 5 Co, MnlMo1Nb, Zr4B, amorphous alloy powder was mixed with water glass, etc., and the surface was coated after compaction C. After compaction, heat treatment was performed in a rotating magnetic field. Effective magnetic permeability μe□ at 1 OKHz when coated. A comparison of I (is shown in Table 3).
圧粉成形後磁場中熱処理を行なった圧粉磁心りの方が実
効透磁率が高くなり、より好ましい結果が得られる。A powder magnetic core that is heat-treated in a magnetic field after compaction has a higher effective magnetic permeability, and more favorable results can be obtained.
第３表
〔発明の効果〕
本発明によれば、従来不充分であったアモルファス圧粉
磁心の直流重畳特性、コア損失、透磁率等を改善できチ
ョークコイルやノイズフィルターの小型化、高周波領域
で使用する際コアの温度上昇が小さくなる等大きな効果
が得られる。Table 3 [Effects of the Invention] According to the present invention, it is possible to improve the DC superimposition characteristics, core loss, magnetic permeability, etc. of an amorphous powder magnetic core, which were insufficient in the past, and to miniaturize choke coils and noise filters, and to improve performance in high frequency regions. Great effects such as a reduction in the temperature rise of the core during use can be obtained.
第１図は本発明に係る圧粉磁心と従来の圧粉磁心の直流
重畳特性を比較した図、第２図は本発明に係る圧粉磁心
と従来の圧粉磁心の実効透磁率の周波数依存性を比較し
た図、第３図は本発明に係る圧粉磁心と従来の圧粉磁心
のコア損失の８ｍ依存性を示した図、第４図は本発明に
係る圧粉磁心をつくる際圧粉成形する前の粉末に酸化被
膜をつけた場合とつけない場合の実効透磁率μｅの周波
数依存性を比較した図である。
あ１区
直＊ｔｔＥＩＡｉ ｙｂｃ ｒｔｙｅ）第２凶
パ珂ス茫敢ｆ（ＭＨｚ）
第′５ 口
す夙（Ｋ（ｉ ）Figure 1 is a diagram comparing the DC superposition characteristics of the powder magnetic core according to the present invention and the conventional powder magnetic core, and Figure 2 is a diagram comparing the frequency dependence of the effective magnetic permeability of the powder magnetic core according to the present invention and the conventional powder magnetic core. Fig. 3 is a diagram showing the dependence of the core loss on 8 m between the powder magnetic core according to the present invention and the conventional powder magnetic core, and Fig. 4 is a graph showing the dependence of the core loss on 8 m when making the powder magnetic core according to the present invention. FIG. 4 is a diagram comparing the frequency dependence of the effective magnetic permeability μe when an oxide film is applied to the powder before powder compaction and when an oxide film is not applied. A1 ku direct *ttEIAi ybc rtye) 2nd bad pass kasu dan f (MHz)
Claims (1)
アモルファス合金粉末より製造され粉末間が絶縁されて
いることを特徴とするアモルファス圧粉磁心。 ２．組成式 （Ｃｏ＿１＿−＿ａ＿−＿ｂ＿−＿ｃＦｅ＿ａＭｎ＿ｂ
Ｎｉ＿ｃ）＿１＿０＿０＿−＿ｘ＿−＿ｙＭｘＺｙ であらわされ、 ここでＭはＴｉ、Ｚｒ、Ｈｆ、Ｎｂ、Ｔａ、Ｗ、Ｙから
選ばれる少なくとも１種の元素、ＺはＢ、Ｃ、Ｓｉ、Ｇ
ｅ、Ｐ、Ｉｎ、Ｓｎ、Ｓｂ、Ｂｅから選ばれる少なくと
も１種の元素であり、０≦ａ≦０．１、０≦ｂ≦０．１
、０≦ｃ≦０．１、６≦ｘ≦２０、０≦ｙ≦５ なる条件を満足することを特徴とする特許請求の範囲第
１項に記載のアモルファス圧粉磁３．組成式 （Ｃｏ＿１＿−＿ａ＿−＿ｂ＿−＿ｃＦｅ＿ａＭｎ＿ｂ
Ｎｉ＿ｃ）＿１＿０＿０＿−＿ｘ＿−＿ｙ＿−＿ｗＭ＿
ｘＭ’＿ｗＺ＿ｙ であらわされ、 ここでＭはＴｉ、Ｚｒ、Ｈｆ、Ｎｂ、Ｔａ、Ｗから選ば
れる少なくとも１種の元素、Ｍ’はＶ、Ｃｒ、Ｍｏ、Ｒ
ｕ、Ｒｅ、Ｏｓ、Ｉｒ、Ｐｄ、Ｐｔ、Ｃｕ、Ａｇ、Ａｕ
から選ばれる少なくとも１種の元素、ＺはＢ、Ｃ、Ｓｉ
、Ｇｅ、Ｐ、Ｉｎ、Ｓｎ、Ｓｂ、Ｂｅから選ばれる少な
くとも１種の元素であり、 ０≦ａ≦０．１、０≦ｂ≦０．１、０≦ｃ≦０．１、６
≦ｘ≦２０、 Ｗ≦１０、０≦ｙ≦５ なる条件を満足することを特徴とする特許請求の範囲第
１項に記載のアモルファス圧粉磁心。 ４．溶融金属を急冷しＣｏ基の金属−金属系アモルファ
ス合金粉末を作製あるいは作製したアモルファス合金薄
帯を粉砕し粉末を作製した後、該粉末にバインダーを介
在させ圧粉成形することを特徴とする特許請求の範囲第
１項から第３項までのいずれかの項に記載のアモルファ
ス圧粉磁心の製造方法。 ５．溶融金属を急冷しＣｏ基の金属−金属系アモルファ
ス合金粉末を作製あるいは前記アモルファス合金薄帯を
粉砕し粉末を作製し、該粉末表面を酸化させるあるいは
絶縁物で被覆した後、圧粉成形することを特徴とする特
許請求の範囲第１項から第３項のいずれかの項に記載の
アモルファス圧粉磁心の製造方法。 ６．圧粉成形を結晶化温度と結晶化温度より１５０℃低
い温度の間の温度範囲にアモルファス合金粉末を加熱保
持しながら行なうことを特徴とする特許請求の範囲第４
項若しくは第５項に記載のアモルファス圧粉磁心の製造
方法。 ７．圧粉成形後、熱処理の工程を含むことを特徴とする
特許請求の範囲第４項から第６項のいずれかの項に記載
のアモルファス圧粉磁心の製造方法。[Claims] 1. An amorphous powder magnetic core manufactured from a Co-based metal-metal amorphous alloy powder having a saturation magnetic flux density of 8 KG or more and having insulation between the powders. 2. Composition formula (Co_1_-_a_-_b_-_cFe_aMn_b
Ni_c)_1_0_0_-_x_-_yMxZy, where M is at least one element selected from Ti, Zr, Hf, Nb, Ta, W, and Y, and Z is B, C, Si, and G.
At least one element selected from e, P, In, Sn, Sb, and Be, 0≦a≦0.1, 0≦b≦0.1
, 0≦c≦0.1, 6≦x≦20, 0≦y≦5. Composition formula (Co_1_-_a_-_b_-_cFe_aMn_b
Ni_c)_1_0_0_-_x_-_y_-_wM_
xM'_wZ_y, where M is at least one element selected from Ti, Zr, Hf, Nb, Ta, and W, and M' is V, Cr, Mo, and R.
u, Re, Os, Ir, Pd, Pt, Cu, Ag, Au
At least one element selected from Z is B, C, Si
, Ge, P, In, Sn, Sb, and Be, and 0≦a≦0.1, 0≦b≦0.1, 0≦c≦0.1, 6
The amorphous powder magnetic core according to claim 1, which satisfies the following conditions: ≦x≦20, W≦10, 0≦y≦5. 4. A patent characterized in that a Co-based metal-metal amorphous alloy powder is produced by rapidly cooling a molten metal, or the produced amorphous alloy ribbon is pulverized to produce a powder, and then the powder is compacted with a binder interposed therein. A method for manufacturing an amorphous powder magnetic core according to any one of claims 1 to 3. 5. Rapidly cooling the molten metal to produce a Co-based metal-metal amorphous alloy powder, or pulverizing the amorphous alloy ribbon to produce a powder, oxidizing the surface of the powder or coating it with an insulator, and then compacting it. A method for manufacturing an amorphous powder magnetic core according to any one of claims 1 to 3, characterized in that: 6. Claim 4, characterized in that powder compaction is carried out while heating and maintaining the amorphous alloy powder in a temperature range between the crystallization temperature and a temperature 150° C. lower than the crystallization temperature.
5. A method for producing an amorphous powder magnetic core according to item 5. 7. The method for producing an amorphous powder magnetic core according to any one of claims 4 to 6, which comprises a step of heat treatment after compaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6996386A JPS62226603A (en) | 1986-03-28 | 1986-03-28 | Amophous dust core and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6996386A JPS62226603A (en) | 1986-03-28 | 1986-03-28 | Amophous dust core and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62226603A true JPS62226603A (en) | 1987-10-05 |
Family
ID=13417815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6996386A Pending JPS62226603A (en) | 1986-03-28 | 1986-03-28 | Amophous dust core and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62226603A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01128405A (en) * | 1987-11-11 | 1989-05-22 | Riken Corp | Dust compacted magnetic substance and its manufacture |
| JPH02201904A (en) * | 1989-01-30 | 1990-08-10 | Hitachi Maxell Ltd | High permeability material |
| WO2000025326A1 (en) * | 1998-10-28 | 2000-05-04 | Vacuumschmelze Gmbh | Injection-molded soft-magnetic powder composite material and method for producing the same |
| WO2001091141A1 (en) * | 2000-05-19 | 2001-11-29 | Vacuumschmelze Gmbh & Co. Kg | Inductive component and method for the production thereof |
| WO2003060175A1 (en) * | 2002-01-16 | 2003-07-24 | Mitsui Chemicals, Inc. | Magnetic base material, laminate from magnetic base material and method for production thereof |
| KR100533097B1 (en) * | 2000-04-27 | 2005-12-02 | 티디케이가부시기가이샤 | Composite Magnetic Material and Magnetic Molding Material, Magnetic Powder Compression Molding Material, and Magnetic Paint using the Composite Magnetic Material, Composite Dielectric Material and Molding Material, Powder Compression Molding Material, Paint, Prepreg, and Substrate using the Composite Dielectric Material, and Electronic Part |
| US8287664B2 (en) | 2006-07-12 | 2012-10-16 | Vacuumschmelze Gmbh & Co. Kg | Method for the production of magnet cores, magnet core and inductive component with a magnet core |
| JP2015084353A (en) * | 2013-10-25 | 2015-04-30 | 日立金属株式会社 | Powder-compact magnetic core, method for manufacturing the same, inductance device arranged by use of powder-compact magnetic core, and rotary electric machine |
-
1986
- 1986-03-28 JP JP6996386A patent/JPS62226603A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01128405A (en) * | 1987-11-11 | 1989-05-22 | Riken Corp | Dust compacted magnetic substance and its manufacture |
| JPH02201904A (en) * | 1989-01-30 | 1990-08-10 | Hitachi Maxell Ltd | High permeability material |
| WO2000025326A1 (en) * | 1998-10-28 | 2000-05-04 | Vacuumschmelze Gmbh | Injection-molded soft-magnetic powder composite material and method for producing the same |
| KR100533097B1 (en) * | 2000-04-27 | 2005-12-02 | 티디케이가부시기가이샤 | Composite Magnetic Material and Magnetic Molding Material, Magnetic Powder Compression Molding Material, and Magnetic Paint using the Composite Magnetic Material, Composite Dielectric Material and Molding Material, Powder Compression Molding Material, Paint, Prepreg, and Substrate using the Composite Dielectric Material, and Electronic Part |
| WO2001091141A1 (en) * | 2000-05-19 | 2001-11-29 | Vacuumschmelze Gmbh & Co. Kg | Inductive component and method for the production thereof |
| WO2003060175A1 (en) * | 2002-01-16 | 2003-07-24 | Mitsui Chemicals, Inc. | Magnetic base material, laminate from magnetic base material and method for production thereof |
| EP1473377A1 (en) * | 2002-01-16 | 2004-11-03 | Mitsui Chemicals, Inc. | Magnetic base material, laminate from magnetic base material and method for production thereof |
| EP1473377A4 (en) * | 2002-01-16 | 2005-03-23 | Mitsui Chemicals Inc | Magnetic base material, laminate from magnetic base material and method for production thereof |
| EP1764424A1 (en) * | 2002-01-16 | 2007-03-21 | Mitsui Chemicals, Inc. | Magnetic substrate, laminate of magnetic substrate and method for producing thereof |
| US7445852B2 (en) | 2002-01-16 | 2008-11-04 | Mitsui Chemicals, Inc. | Magnetic substrate, laminate of magnetic substrate and method for producing thereof |
| US8287664B2 (en) | 2006-07-12 | 2012-10-16 | Vacuumschmelze Gmbh & Co. Kg | Method for the production of magnet cores, magnet core and inductive component with a magnet core |
| JP2015084353A (en) * | 2013-10-25 | 2015-04-30 | 日立金属株式会社 | Powder-compact magnetic core, method for manufacturing the same, inductance device arranged by use of powder-compact magnetic core, and rotary electric machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100545849B1 (en) | Manufacturing method of iron-based amorphous metal powder and manufacturing method of soft magnetic core using same | |
| EP0302355B1 (en) | Fe-base soft magnetic alloy powder and magnetic core thereof and method of producing same | |
| KR100531253B1 (en) | Method for Making Nano Scale Grain Metal Powders Having Excellent High Frequency Characteristics and Method for Making Soft Magnetic Core for High Frequency Using the Same | |
| EP1808242A1 (en) | METHOD FOR PRODUCING SOFT MAGNETIC METAL POWDER COATED WITH Mg-CONTAINING OXIDIZED FILM AND METHOD FOR PRODUCING COMPOSITE SOFT MAGNETIC MATERIAL USING SAID POWDER | |
| JP2001011563A (en) | Manufacture of composite magnetic material | |
| JP2713363B2 (en) | Fe-based soft magnetic alloy compact and manufacturing method thereof | |
| JPS62226603A (en) | Amophous dust core and manufacture thereof | |
| JP3059187B2 (en) | Soft magnetic alloy, manufacturing method thereof and magnetic core | |
| JP2003059710A (en) | Dust core | |
| JPH0682577B2 (en) | Fe-Si alloy dust core and method of manufacturing the same | |
| JPH0294406A (en) | Dust core | |
| JPH11176680A (en) | Manufacture of core | |
| JPS63117406A (en) | Amorphous alloy dust core | |
| JPS62232103A (en) | Fe base amorphous dust core and manufacture thereof | |
| JPS63115309A (en) | Magnetic alloy powder | |
| JPS61154014A (en) | Dust core | |
| JPH0534814B2 (en) | ||
| JP3201782B2 (en) | Manufacturing method of dust core | |
| JPS59179729A (en) | Magnetic core of amorphous alloy powder compact | |
| JPH0479302A (en) | Dust core | |
| JPH03278501A (en) | Soft magnetic core material and manufacture thereof | |
| JP2704157B2 (en) | Magnetic parts | |
| JPS59177902A (en) | Core | |
| JP2002075721A (en) | Dust core | |
| JPH10270226A (en) | Powder-molded magnetic core and manufacture therefor |