JPS62212043A - Production of co-nb amorphous magnetic alloy foil - Google Patents

Production of co-nb amorphous magnetic alloy foil

Info

Publication number
JPS62212043A
JPS62212043A JP61052869A JP5286986A JPS62212043A JP S62212043 A JPS62212043 A JP S62212043A JP 61052869 A JP61052869 A JP 61052869A JP 5286986 A JP5286986 A JP 5286986A JP S62212043 A JPS62212043 A JP S62212043A
Authority
JP
Japan
Prior art keywords
alloy
amorphous magnetic
magnetic alloy
alloy foil
thermal conductivity
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
Application number
JP61052869A
Other languages
Japanese (ja)
Inventor
Osamu Myoga
修 冥加
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.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP61052869A priority Critical patent/JPS62212043A/en
Publication of JPS62212043A publication Critical patent/JPS62212043A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Continuous Casting (AREA)

Abstract

PURPOSE:To produce a Co-Nb amorphous magnetic alloy foil having excellent soft magnetic characteristics, by injecting molten Co-Nb alloy, having the specified content of Nb on a circumferential face of a Cu-alloy cooling roll having not less than the specified ratio of the thermal conductivity at not less than the specified ratio of the peripheral speed for the roll. CONSTITUTION:The molten metal, containing 10-17atom% Nb is injected and cooled rapidly on the circumferential face of rotated by >=100m/sec for its peripheral speed. And, the roll used is to be >=2W/cm deg.C for its thermal conductivity. In this way, by rapid cooling method for the molten metal, the Co-Nb amorphous magnetic alloy foil having excellent soft magnetic characteristics is produced.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、軟磁気特性を有するCo−Nb非晶質磁性合
金薄帯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 a method for manufacturing a Co--Nb amorphous magnetic alloy ribbon having soft magnetic properties.

(従来の技術) 従来、Co−Nb非晶質磁性合金は、CO基基孔晶質合
金しては比較的飽和磁束密度(以下、Bsという)が高
くまた透磁率(以下、Pという)が高く、磁歪(以下、
λSという)が小さく、保磁力(以下Hcという)が小
さく、耐食性に優れた合金として注目され、スパッタ法
により、磁気ヘッド材料としての研究開発が進展した。
(Prior Art) Conventionally, Co-Nb amorphous magnetic alloys have relatively high saturation magnetic flux density (hereinafter referred to as Bs) and magnetic permeability (hereinafter referred to as P) for CO-based porous crystalline alloys. High, magnetostrictive (hereinafter referred to as
It has attracted attention as an alloy with a small λS), a low coercive force (hereinafter referred to as Hc), and excellent corrosion resistance, and research and development has progressed as a material for magnetic heads using sputtering methods.

(発明が解決しようとする問題点) しかしながら、前記Co−Nb非晶質磁性合金は、優れ
た軟磁気特性を有しているが、液体急冷法によって非晶
質薄帯を得ることが難しいという問題点があった。
(Problems to be Solved by the Invention) However, although the Co-Nb amorphous magnetic alloy has excellent soft magnetic properties, it is difficult to obtain an amorphous ribbon by liquid quenching. There was a problem.

本発明の目的は、前記問題点を解決し、優れた軟磁気特
性を有するCo−Nb非晶質磁性合金薄帯の製造方法を
提供するものである。
An object of the present invention is to solve the above-mentioned problems and provide a method for manufacturing a Co--Nb amorphous magnetic alloy ribbon having excellent soft magnetic properties.

(問題点を解決するための手段) 本発明は、10〜17原子%のNbを含有するCo−N
b溶融合金を、毎秒100m以上の周速で回転している
銅あるいは熱伝導率が2(W/cm・℃)以上の銅合金
から成る冷却ロール周面に噴射することを特徴とするC
o−Nb非晶質磁性合金薄帯の製造方法である。
(Means for Solving the Problems) The present invention provides Co-N containing 10 to 17 at% of Nb.
(b) The molten alloy is injected onto the circumferential surface of a cooling roll made of copper or a copper alloy having a thermal conductivity of 2 (W/cm・℃) or more, which is rotating at a circumferential speed of 100 m/s or more.C.
This is a method for producing an o-Nb amorphous magnetic alloy ribbon.

次に本発明の限定理由について述べる。Next, the reasons for the limitations of the present invention will be described.

Nbが10原子%を下まわったり、17i子%を上まわ
ると、本発明のいかなる製造方法によっても、非晶質磁
性合金薄帯は得られず、したがって、Nbは10〜17
原子%が望ましい。銅製の浴部ロールを毎秒100mを
下まわる周速で回転させ、本発明の合金組成の溶融合金
を前記冷却ロール周面に噴射させると、前記合金の薄帯
は、非晶質とならず、したがって、冷却ロールの周速は
毎秒100m以上に限定する。熱伝導率が2(W/cm
・’C)を下まわる銅合金から成る冷却ロールを使用す
ると、毎秒100m以上の周速で回転させても、本発明
の合金組成の溶融合金は非晶質薄帯にならなかった。し
たがって、冷却ロールは、銅あるいは、熱伝導率が2(
W/cm・℃)以上の銅合金が望ましい。
If Nb is less than 10 atomic % or more than 17 i atomic %, an amorphous magnetic alloy ribbon cannot be obtained by any production method of the present invention.
Atomic % is preferable. When a copper bath roll is rotated at a circumferential speed of less than 100 m/s and a molten alloy having the alloy composition of the present invention is injected onto the circumferential surface of the cooling roll, the alloy ribbon does not become amorphous; Therefore, the circumferential speed of the cooling roll is limited to 100 m/s or more. Thermal conductivity is 2 (W/cm
- When a cooling roll made of a copper alloy of less than 'C) was used, the molten alloy having the alloy composition of the present invention did not become an amorphous ribbon even when rotated at a circumferential speed of 100 m/s or more. Therefore, the cooling roll is made of copper or has a thermal conductivity of 2 (
A copper alloy with a temperature of W/cm・℃ or higher is desirable.

(作用) 本発明によれば、従来、液体急冷法で得られなかった軟
磁気特性に優れたCo−Nb非晶質磁性合金薄帯が得ら
れる。即ち、銅あるいは熱伝導率が2(W/cm・℃)
以上の銅合金から成る冷却ロールの周速が毎秒100m
以上の製造方法のもとで、前記限定した組成の溶融合金
を液体急冷するとCo−Nb非晶質磁性合金薄帯が得ら
れた。前記得られたCo−Nb非晶質磁性合金薄帯を4
15°Cで30分熱処理し、諸性質を測定すると、Bs
が8.9〜11.9KG、 Heが15m0e程度、λ
Sが−IXIO−6程度の値であった。
(Function) According to the present invention, a Co--Nb amorphous magnetic alloy ribbon having excellent soft magnetic properties, which could not be obtained conventionally by liquid quenching, can be obtained. That is, copper or thermal conductivity is 2 (W/cm・℃)
The circumferential speed of the cooling roll made of the above copper alloy is 100 m/s.
Using the above manufacturing method, a Co--Nb amorphous magnetic alloy ribbon was obtained by liquid quenching the molten alloy having the specified composition. The obtained Co-Nb amorphous magnetic alloy ribbon was
When heat treated at 15°C for 30 minutes and measured various properties, Bs
is 8.9~11.9KG, He is about 15m0e, λ
The value of S was about -IXIO-6.

(実施例) 以下、実施例にしたがって詳細に説明する。(Example) Hereinafter, it will be explained in detail according to an example.

本実施例では、第1表に示す12種類の合金組成を使用
し、アルゴン雰囲気中で、当該溶融合金を各種周速で回
転している銅から成る冷却ロールの周面に噴射した。そ
の結果、Nol、2のようにNbが10原子%を下まわ
ったり、17原子%を上まわるとCo−Nb非晶質磁性
合金は得られをかった。また、No、3のように冷却ロ
ール周速が毎秒100mを下まわると、Co−Nb非晶
質磁性合金は得られなかった。
In this example, 12 types of alloy compositions shown in Table 1 were used, and the molten alloy was injected onto the circumferential surface of a cooling roll made of copper rotating at various circumferential speeds in an argon atmosphere. As a result, it was difficult to obtain a Co--Nb amorphous magnetic alloy when Nb was less than 10 atomic % or more than 17 atomic %, as in No. 2. Moreover, when the peripheral speed of the cooling roll was less than 100 m/s as in No. 3, a Co--Nb amorphous magnetic alloy could not be obtained.

No、4〜10は厚さが511m〜2011mの本発明
のCo−Nb非晶質磁性合金であって、毎秒100m以
上の周速で回転している銅製冷却ロール周面に前記合金
組成の溶融合金を噴射することにより、非晶質磁性合金
第1表 上述の実施例で冷却ロール材質を熱伝導率が2(W/1
cm−℃)の銅合金として、他は同一条件で試料作製を
行なったところ、上述した実施例と同じ結果になった。
Nos. 4 to 10 are Co-Nb amorphous magnetic alloys of the present invention having a thickness of 511 m to 2011 m, and are melted with the above alloy composition on the circumferential surface of a copper cooling roll rotating at a circumferential speed of 100 m/s or more. By spraying the alloy, the cooling roll material in the above-mentioned example of the amorphous magnetic alloy Table 1 can be heated to a thermal conductivity of 2 (W/1).
When a sample was prepared as a copper alloy (cm-°C) under the same conditions, the same results as in the above-mentioned example were obtained.

(発明の効果) 以1−述べたように、本発明の軟磁気特性の優れたCo
−Nb非晶質磁性合金薄帯は、スパッター法のみによら
ず、液体急冷法によって非晶質磁性合金薄帯が得られ、
トランス用コアー材料への応用が可能になり、特に、高
周波トランス用コアー材料として、工業的価値が高い。
(Effects of the Invention) As described in 1-1 above, the present invention uses Co with excellent soft magnetic properties.
-Nb amorphous magnetic alloy ribbon can be obtained not only by sputtering method but also by liquid quenching method,
It can now be applied as a core material for transformers, and has high industrial value, especially as a core material for high-frequency transformers.

Claims (1)

【特許請求の範囲】[Claims]  10〜17原子%のNbを含有するCo−Nb溶融合
金を、毎秒100m以上の周速で回転している銅あるい
は熱伝導率が2(W/cm・℃)以上の銅合金から成る
冷却ロール周面に噴射することを特徴とするCo−Nb
非晶質磁性合金薄帯の製造方法。
A cooling roll made of copper or a copper alloy with a thermal conductivity of 2 (W/cm・℃) or more that rotates a Co-Nb molten alloy containing 10 to 17 at% Nb at a circumferential speed of 100 m/s or more. Co-Nb characterized by being injected onto the peripheral surface
A method for manufacturing an amorphous magnetic alloy ribbon.
JP61052869A 1986-03-10 1986-03-10 Production of co-nb amorphous magnetic alloy foil Pending JPS62212043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61052869A JPS62212043A (en) 1986-03-10 1986-03-10 Production of co-nb amorphous magnetic alloy foil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61052869A JPS62212043A (en) 1986-03-10 1986-03-10 Production of co-nb amorphous magnetic alloy foil

Publications (1)

Publication Number Publication Date
JPS62212043A true JPS62212043A (en) 1987-09-18

Family

ID=12926879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61052869A Pending JPS62212043A (en) 1986-03-10 1986-03-10 Production of co-nb amorphous magnetic alloy foil

Country Status (1)

Country Link
JP (1) JPS62212043A (en)

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