JPS62232103A - Fe base amorphous dust core and manufacture thereof - Google Patents
Fe base amorphous dust core and manufacture thereofInfo
- Publication number
- JPS62232103A JPS62232103A JP7510186A JP7510186A JPS62232103A JP S62232103 A JPS62232103 A JP S62232103A JP 7510186 A JP7510186 A JP 7510186A JP 7510186 A JP7510186 A JP 7510186A JP S62232103 A JPS62232103 A JP S62232103A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- magnetic core
- coercive force
- core
- powder 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 7
- 239000000428 dust Substances 0.000 title abstract 3
- 239000000843 powder Substances 0.000 claims abstract description 52
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims abstract description 12
- 239000002245 particle Substances 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 3
- 229910052804 chromium Inorganic materials 0.000 claims abstract 2
- 229910052735 hafnium Inorganic materials 0.000 claims abstract 2
- 229910052748 manganese Inorganic materials 0.000 claims abstract 2
- 229910052758 niobium Inorganic materials 0.000 claims abstract 2
- 229910052763 palladium Inorganic materials 0.000 claims abstract 2
- 229910052697 platinum Inorganic materials 0.000 claims abstract 2
- 229910052702 rhenium Inorganic materials 0.000 claims abstract 2
- 229910052703 rhodium Inorganic materials 0.000 claims abstract 2
- 229910052709 silver Inorganic materials 0.000 claims abstract 2
- 229910052715 tantalum Inorganic materials 0.000 claims abstract 2
- 229910052719 titanium Inorganic materials 0.000 claims abstract 2
- 229910052720 vanadium Inorganic materials 0.000 claims abstract 2
- 229910052726 zirconium Inorganic materials 0.000 claims abstract 2
- 239000011230 binding agent Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- -1 modified alkyl silicate Chemical compound 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims 2
- 230000000171 quenching effect Effects 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 229910052762 osmium Inorganic materials 0.000 claims 1
- 238000010298 pulverizing process Methods 0.000 claims 1
- 229910052707 ruthenium Inorganic materials 0.000 claims 1
- 230000004907 flux Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 229910052721 tungsten Inorganic materials 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 230000035699 permeability Effects 0.000 description 7
- 238000007796 conventional method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910000889 permalloy Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009689 gas atomisation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000005096 rolling process Methods 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Powder Metallurgy (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に好適な
直流重畳特性に優れたＦｅ基アモルファス圧粉研心およ
び七の製造方法に関するものである０〔従来の技術〕
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ｒ ＭｏパーマロイやＦｅ −Ｓｉ −ＡＩ圧粉
磁心等が用いられていた。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an Fe-based amorphous powder grinding core with excellent direct current superimposition characteristics suitable for choke coils, noise filters, etc., and a method for producing the same. [Prior Art] Conventionally, iron rMo permalloy, Fe-Si-AI powder magnetic cores, etc. have been used as magnetic cores for choke coils, noise filters, and the like.
鉄圧粉磁心はコア情夫が大きい、透磁率が低い。The iron powder magnetic core has a large core diameter and low magnetic permeability.
直流１畳特性が慈い等の問題点があり、Ｍｏパーマロイ
圧粉磁心やＦｅ −Ｓｔ −Ａｌ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の問題点が
ある。There are problems such as poor direct current characteristics, and Mo permalloy powder magnetic cores and Fe-St-Al powder magnetic cores have problems such as slightly 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、比抵抗が高
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、時開５５−Ｌ５５５０７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 specific resistance, and excellent frequency dependence. An attempt to use an amorphous alloy as a powder magnetic core is described, for example, in Jikai No. 55-L55507.
ＦｅＪｌ−アモルファス合金は一般に飽和磁束密度が高
いため圧粉磁心にした場合、飽和磁界が大きくなる特徴
がある。FeJl-amorphous alloy generally has a high saturation magnetic flux density, so when it is made into a powder magnetic core, it has a characteristic that the saturation magnetic field becomes large.
〔発明が解決しようとする問題点〕
し、かじ、Ｆｅ基アモルファス合金は磁歪定数が大きい
ため圧粉するとひずみの影響を受け、保磁力の増加、透
磁率の他下、コア損失の増加が起こり、直流重畳時性も
Ｍｏパーマロイ圧粉磁心より劣ってしまう。[Problems to be solved by the invention] Since Fe-based amorphous alloys have a large magnetostriction constant, they are affected by strain when pressed into powder, resulting in an increase in coercive force, magnetic permeability, and core loss. Also, the DC superposition property is inferior to that of the Mo permalloy powder magnetic core.
本発明の目的は、従来のＦｅ基アモルファス圧粉磁心よ
り直流Ｍ＊特性に優れたＦｅ基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０
〔問題点を解決するための手段〕
本発明は、組成式
％式％
Ｙ 、 Ｎｉから選ばれる少なくとも１種以上であり、
ここで ０≦ａ≦０．３ 、０．１≦Ｘ≦１０，０≦ｙ
≦１８５≦２≦３０ 、１５≦７ ＋ ｚ≦３０なる条
件を満足するアモルファス合金からなり、粉末粒子間が
電気的にほぼ短縁され、かつ保磁力が０ 、５Ｏｅ以下
であることを特徴とするＦｅ基アモルファス圧粉磁心と
上記Ｆｅ基アモルファス圧粉磁心の製造方法である。An object of the present invention is to provide an Fe-based amorphous powder magnetic core that has better DC M* characteristics than conventional Fe-based amorphous powder magnetic cores, and a method for manufacturing the same.0 [Means for solving the problems] This invention The invention is at least one selected from the composition formula % Y, Ni,
Here 0≦a≦0.3, 0.1≦X≦10, 0≦y
It is made of an amorphous alloy that satisfies the following conditions: ≦185≦2≦30, 15≦7 + z≦30, and is characterized by having substantially short electrical edges between powder particles and having a coercive force of 0.5 Oe or less. The present invention provides an Fe-based amorphous powder magnetic core and a method for producing the Fe-based amorphous powder magnetic core.
本発明においてＭはコア損°失Ｈｅを下げる効果を有し
、０．１≦Ｘ≦１０に限定したのはＸが１０％を越える
と飽和磁束密度が低下し実用的でなくなり ０．１％未
満ではコア損失ｒ Ｈｅ低減の効果がほとんどないため
である。In the present invention, M has the effect of lowering the core loss He, and the reason why it is limited to 0.1≦X≦10 is because if X exceeds 10%, the saturation magnetic flux density decreases and becomes impractical.0.1% This is because there is almost no effect of reducing the core loss rHe if it is less than that.
Ｃｏは飽和磁束密度を茜め直流重畳時性を改善する効果
を有するが、組成比ａが０．３を越えると飽和磁束密度
が低下するため好ましくない。Co has the effect of reducing saturation magnetic flux density and improving DC superimposition characteristics, but if the composition ratio a exceeds 0.3, the saturation magnetic flux density decreases, which is not preferable.
Ｓｉ＋Ｂはアモルファス形成のために必須の元素であシ
、５ｉｉｉＯ≦ｙ≦１８．Ｂ量５≦２≦６０゜１５≦ｙ
十ｚ≦６０の関係にある場合、アモルファス形成が容易
であり好ましい結果が得られる。Si+B is an essential element for amorphous formation, and 5iiiO≦y≦18. B amount 5≦2≦60゜15≦y
When the relationship satisfies 10z≦60, amorphous formation is easy and favorable results can be obtained.
粉末粒子間を電気的に龜は絶縁するのは、高周波磁気特
性時に透磁率の周波数特性を改善するためであり、保磁
力を０ 、２０ｅ以下に限定したのは０ 、５Ｏｅを越
えると、コア損失が増加しコアの発熱が大きくなるとと
もに直流重畳特性も十分でなくなるためである。The purpose of electrically insulating the powder particles is to improve the frequency characteristics of magnetic permeability during high-frequency magnetic properties. This is because loss increases, heat generation in the core increases, and DC superimposition characteristics become insufficient.
上記Ｆｅ基アモルファス圧粉磁心は次の様な方法で製造
される。The Fe-based amorphous powder magnetic core described above is manufactured by the following method.
まず上記即成の溶融金属を急冷し、アモルファス合金粉
末を作製あるいは上記組成の溶融金属を急冷し、アモル
ファス合金薄帯を粉砕し粉末を作成した後、該粉末に耐
熱性バインダーを介在させ圧粉成形し粒子間が絶縁され
た圧粉体とし、更に結晶化温度以下の温度で熱処理を行
ない保磁力が０ 、５Ｏｅ以下のＦｅ基アモルファス圧
粉磁心を製造する。First, the ready-made molten metal is quenched to produce an amorphous alloy powder, or the molten metal with the above composition is quenched, the amorphous alloy ribbon is pulverized to create a powder, and then a heat-resistant binder is interposed between the powder and the powder is pressed. The powder is molded into a powder body with insulation between particles, and then heat treated at a temperature below the crystallization temperature to produce an Fe-based amorphous powder magnetic core with a coercive force of 0.5 Oe or less.
特にバインダーとして変性アルキルシリケートを主成分
とするもの、あるいは水ガラスを主成分とするものを用
いた場合に、粒子間が良好に絶縁される。このため周波
数特性が特に良好となる。Particularly when a binder containing a modified alkyl silicate as a main component or a binder containing water glass as a main component is used, good insulation between particles can be achieved. Therefore, the frequency characteristics are particularly good.
また、圧粉成形は結晶化温度以下の温度に加熱して行っ
ても良い。Moreover, compaction may be performed by heating to a temperature below the crystallization temperature.
〔実施例〕 以下、本発明を実施例に従って説明する。〔Example〕 Hereinafter, the present invention will be explained according to examples.
実施例１
Ｆｅｔｓ、ｓＣｕ ｒ Ｍｏｓ ５ｉｔｓ、ｓＢ＊
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を主成分とするバイン
タ′−を混ぜた後金型を４２０℃に加熱し、１５ Ｔ／
ｉの圧力で６０分保持し圧粉成形した後、更に４４０℃
で６０分熱処理を行りた。得られた外径２１．、内径１
２簡、高さ８馴の圧粉磁心Ａをエポキシ樹脂で粉体コー
ティングし、１０ ＫＨｚの直流重畳特性と直流Ｂ−Ｈ
カーブを測定した。得られた圧粉磁心の保磁力は０ 、
５Ｏｅであった。直流重畳特性を第１図に示す。比較の
ため圧粉成形後熱処理を行なわない従来の方法で作製さ
れたＦｅｙｓ ５ｉ９Ｂｕｓ アモルファス圧粉磁心Ｂ
の直流重畳特性を示す。Example 1 Fets, sCu r Mos 5its, sB*
Amorphous alloy powder was produced by ultrasonic gas atomization, and then a binder whose main component was water glass was mixed with the powder, and the mold was heated to 420°C and heated to 15 T/min.
After compacting and holding at a pressure of i for 60 minutes, the temperature was further increased to 440°C.
Heat treatment was performed for 60 minutes. Obtained outer diameter 21. , inner diameter 1
A powder magnetic core A of 2cm and 8cm in height is powder coated with epoxy resin, and has DC superimposition characteristics of 10 KHz and DC B-H.
The curve was measured. The coercive force of the obtained powder magnetic core is 0,
It was 5 Oe. Figure 1 shows the DC superposition characteristics. For comparison, Feys 5i9Bus amorphous powder magnetic core B produced by a conventional method without heat treatment after compaction
shows the DC superposition characteristics of
不発明方法によυ製造したＦｅ基アモルファス圧粉磁心
Ａは従来の方法で製造したＦｅ基アモルファス圧粉磁心
より高い直流重畳磁界Ｈｂｃまで増分透ａｔ率が高く直
流重畳特性に優れている。このため平滑チョーク等に用
いた場合磁心を小型化することができる。The Fe-based amorphous powder magnetic core A produced by the uninvented method has a higher incremental permeability up to a higher DC superimposed magnetic field Hbc than the Fe-based amorphous powder magnetic core produced by the conventional method, and has excellent DC superposition characteristics. Therefore, when used in a smooth choke, etc., the magnetic core can be made smaller.
＄腫１９１１２
Ｆｅｔｓ、５Ｃｕｔ Ｎｂｓ ５ｉｔｓ、ｓ Ｂ＊アモ
ルファス合金薄帯を単ロール法によシ作製し、次にこの
粉末を機械的に粉砕し、この粉末に変性アルキルシリケ
ートを主成分とするバインダーを混ぜた後金型を４５０
℃に加熱し、１５Ｔ／ｍの圧力で６０分保持し圧粉成形
した後、更に４５０℃で６０分熱処理した。得られた外
径２１鰭、内径１２＋ｏ＋、高さ８簡の圧粉磁心Ｃをフ
ェノール樹脂製のコアケースに入れ直流Ｍ費特性、直流
Ｂ−Ｈカーブを測定した。$19112 Fets, 5Cut Nbs 5its, s B* Amorphous alloy ribbon was produced by a single roll method, then this powder was mechanically crushed, and a binder mainly composed of modified alkyl silicate was added to this powder. After mixing, mold the mold to 450
℃, held at a pressure of 15 T/m for 60 minutes, and compacted, followed by further heat treatment at 450° C. for 60 minutes. The obtained powder magnetic core C having an outer diameter of 21 fins, an inner diameter of 12+o+, and a height of 8 fins was placed in a core case made of phenol resin, and the DC M cost characteristics and DC B-H curve were measured.
直流Ｂ−Ｈカーブよシ求めた保磁力Ｈｃは０．２０ｅで
めった。直流重畳特性を第２図に示す。The coercive force Hc obtained from the DC B-H curve was found to be 0.20e. Figure 2 shows the DC superposition characteristics.
比較のため従来の方法で製造したＦｅ ５ｉ１ｏ Ｂ□
３アモルファス圧粉磁心りの直流重畳特性を示す。For comparison, Fe 5i1o B□ produced by the conventional method
3 shows the DC superposition characteristics of the amorphous powder magnetic core.
本発明の磁心Ｃは、従来の方法で製造した圧粉磁心Ｅよ
り高い直流重畳磁界Ｈｂｃまで増分透磁率が高く直流重
畳特性に優れている。The magnetic core C of the present invention has a higher incremental magnetic permeability up to a higher DC superimposed magnetic field Hbc than the powder magnetic core E manufactured by the conventional method, and has excellent DC superposition characteristics.
実測例３
第１表に本発明によるＦｅ基アモルファス圧粉磁心と従
来の方法で製造したＦｅ基アモルファス圧粉磁心の保磁
力Ｈｅと、直流重畳磁界がＯＯｅの場合の１０ ＫＨｚ
の透磁率μΔを比較して示す。Measurement Example 3 Table 1 shows the coercive force He of the Fe-based amorphous powder magnetic core according to the present invention and the Fe-based amorphous powder magnetic core manufactured by the conventional method, and the coercive force He of 10 KHz when the DC superimposed magnetic field is OOe.
A comparison of the magnetic permeability μΔ is shown.
第１表
図かられかる様に本発明によるＦｅ基圧粉磁心は従来の
磁心よりＨｃが小さくμΔもひじように高くなりておシ
チョーク用磁心としてひじように優れていることがわか
る。As can be seen from Table 1, the Fe-based powder magnetic core according to the present invention has a smaller Hc and a much higher μΔ than the conventional magnetic core, and is therefore extremely superior as a magnetic core for a choke.
本発明によれば、従来不十分であったＦｅ基アモルファ
ス圧粉磁心の直流重畳特性を大幅に改善できるため、そ
の効果は著しいものがある０According to the present invention, it is possible to significantly improve the direct current superimposition characteristics of an Fe-based amorphous powder magnetic core, which has been insufficient in the past.
第１図、第２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であるＯＡ、Ｃ：本発明
磁心
Ｂ、Ｄ：従来の圧粉磁心
手続ネ市正−１Ｌ）
＋＋＋Ｎｕ Ｇ！・７・２ｉ日Figures 1 and 2 are diagrams comparing the DC superimposition characteristics of the powder magnetic core according to the present invention and the conventional powder magnetic core. OA, C: magnetic core of the present invention B, D: conventional powder magnetic core procedure Positive -1L) +++Nu G!・7・2i days
Claims (1)
−＿ｙ＿−＿ｚＭ＿ｘＳｉ＿ｙＢ＿ｚで表わされ、ここ
でＭはＴｉ、Ｚｒ、Ｈｆ、Ｖ、Ｎｂ、Ｔａ、Ｃｒ、Ｍｏ
、Ｗ、Ｍｎ、Ｒｅ、Ｒｕ、Ｏｓ、Ｒｈ、Ｐｄ、Ｐｔ、Ｃ
ｕ、Ａｇ、Ａｕ、Ｙ、Ｎｉから選ばれる少なくとも１種
以上でありここで０≦ａ≦０．３、 ０．１≦ｘ≦１０、０≦ｙ≦１８、５≦ｚ≦３０１５≦
ｙ＋ｚ≦３０ なる条件を満足するアモルファス合金からなり、粉末粒
子間が電気的に実質的に絶縁されかつ保磁力が０．５Ｏ
ｅ以下であることを特徴とするＦｅ基アモルファス圧粉
磁心。 ２、溶融金属を急冷し、上記アモルファス合金粉末を作
製あるいは溶融金属を急冷し上記アモルファス合金薄帯
を粉砕し粉末を作製した後、該粉末に耐熱性バインダー
を介在させ圧粉成形（粒子間が絶縁された圧粉体とし、
更に結晶化温度以下の温度で熱処理を行ない保磁力を０
．５Ｏｅ以下とすることを特徴とするＦｅ基アモルファ
ス圧粉磁心の製造方法。 ３、耐熱性バインダーとして変性アルキルシリケートを
主成分とするものを用いることを特徴とする特許請求の
範囲第２項に記載のＦｅ基アモルファス圧粉磁心の製造
方法。 ４、耐熱性バインダーとして、水ガラスを主成分とする
ものを用いることを特徴とする特許請求の範囲第２項に
記載のＦｅ基アモルファス圧粉磁心の製造方法。[Claims] 1. Composition formula (Fe_1_-_aCo_a)_1_0_0_-_x_
-_y_-_zM_xSi_yB_z, where M is Ti, Zr, Hf, V, Nb, Ta, Cr, Mo
, W, Mn, Re, Ru, Os, Rh, Pd, Pt, C
At least one selected from u, Ag, Au, Y, and Ni, where 0≦a≦0.3, 0.1≦x≦10, 0≦y≦18, 5≦z≦3015≦
It is made of an amorphous alloy that satisfies the following conditions: y+z≦30, and the powder particles are substantially electrically insulated and have a coercive force of 0.5O.
An Fe-based amorphous powder magnetic core characterized in that it is less than or equal to e. 2. After quenching the molten metal to produce the amorphous alloy powder or quenching the molten metal and pulverizing the amorphous alloy ribbon to produce a powder, the powder is interposed with a heat-resistant binder and compacted (the particles are As an insulated compact,
Furthermore, heat treatment is performed at a temperature below the crystallization temperature to reduce the coercive force to 0.
．． A method for producing an Fe-based amorphous powder magnetic core, characterized in that the core is 5 Oe or less. 3. The method for producing an Fe-based amorphous powder magnetic core according to claim 2, characterized in that a heat-resistant binder containing a modified alkyl silicate as a main component is used. 4. The method for producing an Fe-based amorphous powder magnetic core according to claim 2, characterized in that the heat-resistant binder is one containing water glass as a main component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7510186A JPS62232103A (en) | 1986-04-01 | 1986-04-01 | Fe base amorphous dust core and manufacture thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7510186A JPS62232103A (en) | 1986-04-01 | 1986-04-01 | Fe base amorphous dust core and manufacture thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62232103A true JPS62232103A (en) | 1987-10-12 |
Family
ID=13566442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7510186A Pending JPS62232103A (en) | 1986-04-01 | 1986-04-01 | Fe base amorphous dust core and manufacture thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62232103A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0844623A1 (en) * | 1996-11-26 | 1998-05-27 | Kubota Corporation | Pressed body of amorphous magnetically soft alloy powder and process for producing same |
| KR100374292B1 (en) * | 2001-03-06 | 2003-03-03 | (주)창성 | Composite metal powder for power factor correction having good dc biased characteristics and method of processing soft magnetic core by thereof using |
| JPWO2005020252A1 (en) * | 2003-08-22 | 2006-11-16 | Ｎｅｃトーキン株式会社 | High frequency magnetic core and inductance component using the same |
| GB2455211B (en) * | 2006-06-19 | 2011-06-29 | Vacuumschmelze Gmbh & Co Kg | Magnet core and method for its production |
| 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 |
| JP2015517026A (en) * | 2012-03-23 | 2015-06-18 | アップル インコーポレイテッド | Processing process of amorphous alloy powder raw material |
| US9987685B2 (en) | 2012-03-23 | 2018-06-05 | Apple Inc. | Continuous moldless fabrication of amorphous alloy pieces |
| WO2019031463A1 (en) * | 2017-08-07 | 2019-02-14 | 日立金属株式会社 | Fe-BASED ALLOY, CRYSTALLINE Fe-BASED ALLOY ATOMIZED POWDER, AND MAGNETIC CORE |
-
1986
- 1986-04-01 JP JP7510186A patent/JPS62232103A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0844623A1 (en) * | 1996-11-26 | 1998-05-27 | Kubota Corporation | Pressed body of amorphous magnetically soft alloy powder and process for producing same |
| US6017490A (en) * | 1996-11-26 | 2000-01-25 | Kubota Corporation | Pressed body of amorphous magnetically soft alloy powder and process for producing same |
| KR100374292B1 (en) * | 2001-03-06 | 2003-03-03 | (주)창성 | Composite metal powder for power factor correction having good dc biased characteristics and method of processing soft magnetic core by thereof using |
| JPWO2005020252A1 (en) * | 2003-08-22 | 2006-11-16 | Ｎｅｃトーキン株式会社 | High frequency magnetic core and inductance component using the same |
| JP4828229B2 (en) * | 2003-08-22 | 2011-11-30 | Ｎｅｃトーキン株式会社 | High frequency magnetic core and inductance component using the same |
| GB2455211B (en) * | 2006-06-19 | 2011-06-29 | Vacuumschmelze Gmbh & Co Kg | Magnet core and method for its production |
| 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 |
| JP2015517026A (en) * | 2012-03-23 | 2015-06-18 | アップル インコーポレイテッド | Processing process of amorphous alloy powder raw material |
| US9987685B2 (en) | 2012-03-23 | 2018-06-05 | Apple Inc. | Continuous moldless fabrication of amorphous alloy pieces |
| WO2019031463A1 (en) * | 2017-08-07 | 2019-02-14 | 日立金属株式会社 | Fe-BASED ALLOY, CRYSTALLINE Fe-BASED ALLOY ATOMIZED POWDER, AND MAGNETIC CORE |
| JPWO2019031463A1 (en) * | 2017-08-07 | 2019-11-07 | 日立金属株式会社 | Fe-based alloy, crystalline Fe-based alloy atomized powder, and magnetic core |
| TWI778112B (en) * | 2017-08-07 | 2022-09-21 | 日商日立金屬股份有限公司 | Fe-BASED ALLOY, CRYSTALLINE Fe-BASED ALLOY ATOMIZED POWDER, AND MAGNETIC CORE |
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