JPH08283856A - Production of semihard magnetic material of fe-cu-co alloy - Google Patents
Production of semihard magnetic material of fe-cu-co alloyInfo
- Publication number
- JPH08283856A JPH08283856A JP7084102A JP8410295A JPH08283856A JP H08283856 A JPH08283856 A JP H08283856A JP 7084102 A JP7084102 A JP 7084102A JP 8410295 A JP8410295 A JP 8410295A JP H08283856 A JPH08283856 A JP H08283856A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic material
- alloy
- semi
- hard magnetic
- cold
- 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.)
- Withdrawn
Links
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
- H01F1/15308—Amorphous metallic alloys, e.g. glassy metals based on Fe/Ni
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、リードスイッチ、リレ
ー、ヒステリシスモーターなどに用いられる半硬質磁性
材料としてのＦｅ−Ｃｕ−Ｃｏ合金に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Fe-Cu-Co alloy as a semi-hard magnetic material used for reed switches, relays, hysteresis motors and the like.
【０００２】[0002]
【従来の技術】半硬質磁性材料の必要特性としては、高
い残留磁束密度（Ｂｒ）を有し、適正な保磁力（Ｈｃ）
を持ち、ヒステリシスループの角型比（（Ｂｒ／Ｂ
ｓ）、Ｂｓ：飽和磁束密度）に優れていることが重要で
ある。2. Description of the Related Art The required characteristics of a semi-hard magnetic material are a high residual magnetic flux density (Br) and an appropriate coercive force (Hc).
And the squareness ratio of the hysteresis loop ((Br / B
s) and Bs: saturation magnetic flux density) are important.
【０００３】従来から半硬質磁性材料の製造方法として
各種の材料が提案されており、例えば、下記の特許公報
が挙げられる。 （１） 特開昭４９−１１８６１１号公報；Ｃｕ１０〜
７０％、ＣｒまたはＭｎ、またはＶをそれぞれ単独に、
あるいはＣｒ、Ｍｎ、およびＶのうちこれら２種以上の
元素を合計して０．３〜１０％、残部として（Ｆｅ＋Ｃ
ｏ）との間における合金比率（％）をｘ：（１００−
ｘ）（ただし、ｘ＝Ｆｅ％）とするとき、９０≧ｘ≧７
を満足する合金を、インゴット鋳造→熱間鍛造→冷間圧
延→時効処理の工程により製造する方法。 （２） 日本金属学会誌、Ｖｏｌ．３８（１９７４）、
ｐｐ．１０４〜１１１：Ｆｅ０〜７７．９％、Ｃｕ１
１．２２〜２２．１％、Ｃｏ０〜７８．８％、Ｃｏ０〜
９％合金を、インゴット鋳造→溶体化→熱間引き抜き→
中間焼鈍→線引き加工→最終焼鈍→冷間加工の工程によ
り製造する方法。Various materials have been proposed as a method for producing a semi-hard magnetic material, and the following patent publications are listed, for example. (1) JP-A-49-118611; Cu10
70%, Cr or Mn, or V respectively,
Alternatively, the total of these two or more elements among Cr, Mn, and V is 0.3 to 10%, and the balance (Fe + C
the alloy ratio (%) between x and (100-
x) (however, x = Fe%), 90 ≧ x ≧ 7
A method of manufacturing an alloy satisfying the requirements by the steps of ingot casting → hot forging → cold rolling → aging treatment. (2) The Japan Institute of Metals, Vol. 38 (1974),
pp. 104-111: Fe0-77.9%, Cu1
1.22 to 22.1%, Co0 to 78.8%, Co0
9% alloy ingot casting → solutionizing → hot drawing →
A method of manufacturing by the steps of intermediate annealing → wire drawing → final annealing → cold working.
【０００４】しかしながら、これら従来合金は、いずれ
もインゴット鋳造法によるため、冷却速度が遅く、冷却
過程でＦｅとＣｏの規則格子を生成して、著しく冷間加
工性を劣化させる問題があった。However, since all of these conventional alloys are produced by the ingot casting method, the cooling rate is slow, and there is a problem that a regular lattice of Fe and Co is generated during the cooling process, which significantly deteriorates the cold workability.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、残留磁束密
度（Ｂｒ）と保磁力の（Ｈｃ）が高く、角型比（Ｂｓ／
Ｂｒ）に優れていると同時に、冷間加工性に優れたＦｅ
−Ｃｕ−Ｃｏ基合金半硬質磁性材料の製造方法を提供す
ることを目的としている。According to the present invention, the residual magnetic flux density (Br) and the coercive force (Hc) are high, and the squareness ratio (Bs /
Fe, which has excellent Br) and cold workability at the same time.
An object of the present invention is to provide a method for producing a semi-hard magnetic material of a -Cu-Co based alloy.
【０００６】[0006]
【課題を解決するための手段】本発明者らは、これら課
題を解決するために鋭意検討した結果、種々の合金添加
の実験から、偏析低減に効果のある元素と、半硬質磁性
材料としての特性を劣化させることなく冷間加工性を改
善する製造方法を見い出した。Means for Solving the Problems As a result of intensive studies for solving these problems, the present inventors have found from experiments of addition of various alloys that elements effective in reducing segregation and as a semi-hard magnetic material. We have found a manufacturing method that improves cold workability without degrading properties.
【０００７】本発明は、以上の知見に基づいてなされた
ものであり、その要旨とするところは、下記の通りであ
る。 重量％で、Ｃｕ：２０〜６０％、Ｃｏ：１．００〜
２０％、Ａｌ：０．１〜７．０％を含有し、残部Ｆｅお
よび不可避的不純物からなる溶融金属を、１００℃／秒
以上の凝固冷却速度で、板厚０．１〜８ｍｍの金属薄板
に鋳造して、該金属板を圧下率７０〜９８％で冷間圧延
し、３５０〜６５０℃の温度範囲で時効処理を行うこと
を特徴とする、Ｆｅ−Ｃｕ−Ｃｏ基合金半硬質磁性材料
の製造方法。 合金として、さらに、Ｍｎ：０．１〜１０重量％を
含有することを特徴とする前記のＦｅ−Ｃｕ−Ｃｏ基
合金半硬質磁性材料の製造方法。 合金成分として、さらに、Ｃｒ：１〜１０重量％を
含有することを特徴とする前記またはのＦｅ−Ｃｕ
−Ｃｏ基合金半硬質磁性材料の製造方法。The present invention has been made based on the above findings, and the gist thereof is as follows. % By weight, Cu: 20-60%, Co: 1.00
20%, Al: 0.1-7.0%, a molten metal consisting of the balance Fe and unavoidable impurities at a solidification cooling rate of 100 ° C./sec or more, a metal thin plate having a plate thickness of 0.1-8 mm Fe-Cu-Co based alloy semi-hard magnetic material, characterized in that the metal plate is cast into a steel sheet, cold rolled at a rolling reduction of 70 to 98%, and aged in the temperature range of 350 to 650 ° C. Manufacturing method. The Fe-Cu-Co based alloy semi-hard magnetic material manufacturing method as described above, further comprising Mn: 0.1 to 10 wt% as an alloy. Further, as an alloy component, Cr: 1 to 10% by weight, or the above Fe or Cu characterized by the above-mentioned.
-A method for manufacturing a Co-based alloy semi-hard magnetic material.
【０００８】以下に、本発明を詳細に説明する。まず、
本発明合金の化学組成の限定理由について述べる。Ｃｕ
は、半硬質磁性材料としての要求特性に対しては、その
含有量を増加させて目的とするＢｒとＨｃのバランスを
得ることが好ましい。Ｃｕ含有量は２０％未満では、３
０Ｏｅ以上のＨｃが得られ難いのでこれを下限とする。
また、上限を６０％とするのはＦｅ添加量との関係によ
り規定される。従って、Ｃｕを２０〜６０％の範囲とす
る。The present invention will be described in detail below. First,
The reasons for limiting the chemical composition of the alloy of the present invention will be described. Cu
With respect to the required characteristics as a semi-hard magnetic material, it is preferable to increase the content thereof to obtain the desired balance of Br and Hc. When the Cu content is less than 20%, it is 3
Since it is difficult to obtain Hc of 0 Oe or more, this is the lower limit.
The upper limit of 60% is defined by the relationship with the amount of Fe added. Therefore, Cu is set in the range of 20 to 60%.
【０００９】Ｃｏは、１％以上２０％以下の範囲とす
る。１％未満ではＢｒの向上効果が小さく、２０％を超
えて添加しても効果は飽和して合金コストが上昇するか
らである。Ａｌは、０．１％未満では、偏析低減への効
果が少なく、７．０％超では効果が飽和する上に、合金
コストが上昇するのでこの範囲に規定する。Co is set in the range of 1% to 20%. This is because if it is less than 1%, the Br improving effect is small, and if it exceeds 20%, the effect is saturated and the alloy cost is increased. If Al is less than 0.1%, the effect of reducing segregation is small, and if it exceeds 7.0%, the effect is saturated and the alloy cost rises.
【００１０】Ｍｎは、必要に応じて、Ｂｒ、Ｈｃなどの
改善のために、０．１〜１０％の範囲で添加する。この
時の添加範囲は、０．１％未満では効果が小さく、１０
％を超えて添加しても効果が飽和する上にコストが上昇
するのでこの範囲に規定する。Ｃｒは、材料の使用され
る腐食環境によっては、１〜１０％の範囲で添加して耐
食性を向上させる。この時の添加範囲は、１％未満では
効果が小さく、１０％を超えて添加しても効果が飽和す
る上にコストが上昇するのでこの範囲に規定する。Mn is added in the range of 0.1 to 10% to improve Br, Hc, etc., if necessary. At this time, if the addition range is less than 0.1%, the effect is small and 10
Even if added in excess of%, the effect is saturated and the cost rises, so the range is specified. Depending on the corrosive environment in which the material is used, Cr is added in the range of 1 to 10% to improve the corrosion resistance. The addition range at this time is limited to less than 1%, the effect is small, and even if added over 10%, the effect is saturated and the cost increases, so the range is defined as this range.
【００１１】次に、本発明の半硬質磁性合金薄板の加工
・熱処理方法について説明する。本発明合金は、溶融金
属の急冷凝固的手段である双ロール式鋳造装置の湯だま
り部に注入し、冷却ロールの回転によって溶融金属を急
速に冷却して、板厚０．５〜８ｍｍの金属板を鋳造す
る。本鋳造法によれば、ＦｅとＣｏの規則格子の生成防
止と、Ｆｅ相中のＣｕの過飽和度が向上するため、その
後の時効処理によりＦｅ中に１００ｎｍ以下の微細なＣ
ｕ粒子が析出して、Ｈｃのより向上する効果が得られ
る。また、ＦｅとＣｏの規則格子の生成防止と、Ｆｅ相
中のＣｕの過飽和度の向上効果を得るための凝固冷却速
度としては１００℃／秒以上でその効果が得られ、それ
以下では効果が小さい。Next, a method of processing and heat treating the semi-hard magnetic alloy thin plate of the present invention will be described. The alloy of the present invention is poured into a pool of a twin-roll type casting device which is a means for rapidly solidifying molten metal, and the molten metal is rapidly cooled by rotation of a cooling roll to obtain a metal having a plate thickness of 0.5 to 8 mm. Cast the plate. According to this casting method, since the formation of an ordered lattice of Fe and Co is prevented and the supersaturation degree of Cu in the Fe phase is improved, fine C of 100 nm or less in Fe is obtained by the subsequent aging treatment.
The u particles are deposited, and the effect of further improving Hc is obtained. Further, the solidification cooling rate for preventing the formation of the ordered lattice of Fe and Co and for improving the supersaturation degree of Cu in the Fe phase is 100 ° C./sec or more, and the effect is obtained when the solidification cooling rate is less than that. small.
【００１２】鋳造後、圧下率７０〜９０％の冷間圧延を
行う。この狙いは、圧延方法に磁気異方性を持たせて、
半硬質磁性材料としての角型比を向上させるものであ
る。７０％未満の圧下率では角型比の向上効果は小さ
く、９８％超では効果が飽和する上に生産性を低下させ
るのでこの範囲に規定する。After casting, cold rolling is performed at a reduction rate of 70 to 90%. This aim is to give the rolling method magnetic anisotropy,
It improves the squareness ratio as a semi-hard magnetic material. If the rolling reduction is less than 70%, the effect of improving the squareness ratio is small, and if it exceeds 98%, the effect is saturated and the productivity is lowered.
【００１３】また、その後に時効処理を行うことで、さ
らにＨｃと角型比を向上させる効果が得られる。その最
適条件は、温度と時間により決定され、３５０℃未満の
温度ではＦｅ中のＣｕの析出が十分おこらず、６５０℃
超えるとＦｅ中のＣｕが１００ｎｍ以上に成長して保磁
力が低下する。従って、時効処理時間は析出温度の関係
から、１００〜１０００分が好ましい。Further, by performing an aging treatment after that, the effect of further improving the Hc and the squareness ratio can be obtained. The optimum conditions are determined by the temperature and the time, and at a temperature lower than 350 ° C, Cu in Fe does not sufficiently precipitate, and 650 ° C
If it exceeds, Cu in Fe grows to 100 nm or more and the coercive force decreases. Therefore, the aging treatment time is preferably 100 to 1000 minutes in view of the precipitation temperature.
【００１４】[0014]
【実施例】以下に、本発明を実施例によりさらに説明す
る。表１に示す成分を含有する合金を溶解して、双ロー
ル鋳造機で５．０ｍｍの板厚の鋳片を製造した後に、全
厚下率９８％で冷間圧延し、板厚０．１０ｍｍの冷間圧
延板を得た。さらに、５００℃で３６０分の時効処理を
施した。EXAMPLES The present invention will be further described below with reference to examples. The alloy containing the components shown in Table 1 was melted to produce a slab having a plate thickness of 5.0 mm with a twin roll casting machine, and then cold rolled at a total thickness reduction of 98% to obtain a plate thickness of 0.10 mm. To obtain a cold rolled plate. Furthermore, an aging treatment was performed at 500 ° C. for 360 minutes.
【００１５】[0015]
【表１】 [Table 1]
【００１６】得られた材料の特性評価結果を、表２に示
す。ここで、Ｂｒ、Ｂｓ、Ｈｃは、振動型磁気測定装置
によりヒステリシスループを測定して求めた。Table 2 shows the evaluation results of the characteristics of the obtained material. Here, Br, Bs, and Hc were obtained by measuring a hysteresis loop with a vibration type magnetometer.
【００１７】冷間加工性の評価は、全圧下率９８％まで
の割れ発生状況により行った。圧延材の割れ発生状況
で、◎：皆無、○：一部、△：全面とした。耐食性は、
塩水噴霧試験（５％ＮａＣｌ、３５℃）を４８時間行
い、錆の発生状況で評価した。すなわち、赤錆発生面積
率で１０％未満を◎、２０％未満を○とした。The cold workability was evaluated based on the crack generation condition up to a total rolling reduction of 98%. The state of cracking of the rolled material was ⊚: none, ∘: partial, Δ: full surface. Corrosion resistance is
A salt spray test (5% NaCl, 35 ° C.) was carried out for 48 hours, and the rust generation status was evaluated. That is, the area ratio of red rust generated was less than 10%, and less than 20% was ◯.
【００１８】また、比較合金例として、，Ｆｅ−２１％
Ｃｕ−１６％Ｃｏ−１％Ｖ合金の上記特性を同一の方法
で測定し、その結果を、表２に併記した。As an example of a comparative alloy, Fe-21%
The above properties of the Cu-16% Co-1% V alloy were measured by the same method, and the results are also shown in Table 2.
【００１９】[0019]
【表２】 [Table 2]
【００２０】表２の特性評価結果より明かなように、Ｃ
ｕが２０％以下ではＨｃが低く、６０％超ではＢ100 、
Ｂｒ／Ｂ100 が低下する。また、Ｃｏが１％以下ではＢ
ｒへの効果が小さく、Ａｌが０．０５％以下では冷間加
工性評定が悪く、７％を超えても冷間加工性改善効果は
飽和している。さらに、Ｍｎ、Ｃｒの添加は、Ｈｃと耐
食性向上に有効である。As is clear from the characteristic evaluation results of Table 2, C
When u is 20% or less, Hc is low, and when it exceeds 60%, B 100 is
Br / B 100 decreases. When Co is 1% or less, B
The effect on r is small, and if Al is 0.05% or less, the cold workability evaluation is poor, and if it exceeds 7%, the cold workability improving effect is saturated. Furthermore, the addition of Mn and Cr is effective in improving Hc and corrosion resistance.
【００２１】[0021]
【発明の効果】以上に説明したように、本発明方法によ
れば、ＢｒとＨｃが高く、角型比に優れていると同時
に、冷間加工性にも優れた半硬質磁性材料を工業的に安
価に得ることができる。As described above, according to the method of the present invention, a semi-hard magnetic material having a high Br and Hc, an excellent squareness ratio and an excellent cold workability can be industrially produced. Can be obtained at low cost.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０１Ｆ 1/047 Ｈ０１Ｆ 1/04 Ｓ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical indication H01F 1/047 H01F 1/04 S
Claims (3)
１．００〜２０％、Ａｌ：０．１〜７．０％を含有し、
残部Ｆｅおよび不可避的不純物からなる溶融金属を、１
００℃／秒以上の凝固冷却速度で、板厚０．１〜８ｍｍ
の金属薄板に鋳造して、該金属板を圧下率７０〜９８％
で冷間圧延し、３５０〜６５０℃の温度範囲で時効処理
を行うことを特徴とする、Ｆｅ−Ｃｕ−Ｃｏ基合金半硬
質磁性材料の製造方法。1. By weight percent, Cu: 20-60%, Co:
1.00 to 20%, containing Al: 0.1 to 7.0%,
1 for molten metal composed of balance Fe and unavoidable impurities
Plate thickness 0.1 to 8 mm at solidification cooling rate of 00 ° C / sec or more
Cast into a thin metal plate, and the metal plate is rolled at a rolling reduction of 70 to 98%.
A method for producing a semi-hard magnetic material of an Fe-Cu-Co based alloy, which is characterized in that it is cold-rolled in the above step and is subjected to an aging treatment in a temperature range of 350 to 650 ° C.
１０重量％を含有することを特徴とする請求項１に記載
のＦｅ−Ｃｕ−Ｃｏ基合金半硬質磁性材料の製造方法。2. As an alloy component, Mn: 0.1
10% by weight is contained, The manufacturing method of the Fe-Cu-Co base alloy semi-hard magnetic material of Claim 1 characterized by the above-mentioned.
重量％を含有することを特徴とする請求項１または２に
記載のＦｅ−Ｃｕ−Ｃｏ基合金半硬質磁性材料の製造方
法。3. As an alloy component, Cr: 1-10
The Fe-Cu-Co based alloy semi-hard magnetic material manufacturing method according to claim 1, wherein the semi-hard magnetic material contains Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7084102A JPH08283856A (en) | 1995-04-10 | 1995-04-10 | Production of semihard magnetic material of fe-cu-co alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7084102A JPH08283856A (en) | 1995-04-10 | 1995-04-10 | Production of semihard magnetic material of fe-cu-co alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08283856A true JPH08283856A (en) | 1996-10-29 |
Family
ID=13821167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7084102A Withdrawn JPH08283856A (en) | 1995-04-10 | 1995-04-10 | Production of semihard magnetic material of fe-cu-co alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08283856A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1031999A1 (en) * | 1998-09-10 | 2000-08-30 | Hitachi Metals, Ltd. | Production method for semirigid magnetic material and semirigid material and magnetic marker using it |
| CN102676869A (en) * | 2012-05-12 | 2012-09-19 | 西北工业大学 | Cu-Co-Cr shell-core structure ternary alloy and preparation method thereof |
| CN111440964A (en) * | 2020-06-01 | 2020-07-24 | 中南大学 | High-strength high-conductivity Cu-Fe alloy short-process preparation method |
-
1995
- 1995-04-10 JP JP7084102A patent/JPH08283856A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1031999A1 (en) * | 1998-09-10 | 2000-08-30 | Hitachi Metals, Ltd. | Production method for semirigid magnetic material and semirigid material and magnetic marker using it |
| EP1031999A4 (en) * | 1998-09-10 | 2003-06-04 | Hitachi Metals Ltd | Production method for semirigid magnetic material and semirigid material and magnetic marker using it |
| US6893511B1 (en) | 1998-09-10 | 2005-05-17 | Hitachi Metals, Ltd. | Production method for semirigid magnetic material and semirigid material and magnetic marker using it |
| CN102676869A (en) * | 2012-05-12 | 2012-09-19 | 西北工业大学 | Cu-Co-Cr shell-core structure ternary alloy and preparation method thereof |
| CN111440964A (en) * | 2020-06-01 | 2020-07-24 | 中南大学 | High-strength high-conductivity Cu-Fe alloy short-process preparation method |
| CN111440964B (en) * | 2020-06-01 | 2021-07-27 | 中南大学 | High-strength high-conductivity Cu-Fe alloy short-process preparation method |
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