JPS5931583B2 - Anisotropic manganese-aluminum-carbon alloy magnet - Google Patents
Anisotropic manganese-aluminum-carbon alloy magnetInfo
- Publication number
- JPS5931583B2 JPS5931583B2 JP53104067A JP10406778A JPS5931583B2 JP S5931583 B2 JPS5931583 B2 JP S5931583B2 JP 53104067 A JP53104067 A JP 53104067A JP 10406778 A JP10406778 A JP 10406778A JP S5931583 B2 JPS5931583 B2 JP S5931583B2
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- anisotropic
- manganese
- aluminum
- coercive force
- 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.)
- Expired
Links
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- Hard Magnetic Materials (AREA)
Description
【発明の詳細な説明】
本発明は異方性マンガン−アルミニウム−炭素（Ｍｎ−
Ａｌ−Ｃ）系合金磁石の磁気特性、特に保磁力を改良し
た異方性合金磁石を提供することを目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention provides anisotropic manganese-aluminum-carbon (Mn-
The present invention aims to provide an anisotropic alloy magnet with improved magnetic properties, particularly coercive force, of an Al-C alloy magnet.
近年Ｍｎ６８．０〜７３．０重量％（以下単に％で表示
する）、炭素（ｎＭｎ−６．６）〜（■Ｍｎ−２２．２
）％（ただし数式内のＭｎはマンガン成分％を表す）、
残部Ａｌの組成からなる磁気特性の優れた異方性Ｍｎ−
Ａｌ−Ｃ系合金磁石が開発されている（特開昭５０−４
６５０８）。In recent years, Mn 68.0 to 73.0% by weight (hereinafter simply expressed as %), carbon (nMn-6.6) to (■Mn-22.2
)% (However, Mn in the formula represents manganese component%),
Anisotropic Mn- with excellent magnetic properties consisting of the balance Al composition
Al-C alloy magnets have been developed (Japanese Unexamined Patent Application Publication No. 50-4
6508).
この磁石はすでに電気機器などに使用されているが、電
動機や発電機など磁石に逆磁界力劾口わる機器において
は磁石の保磁力がより大きくなることが望まれていた。
このためこの磁石の保磁力をさらに改良すべく実験を重
ねた結果、タングステンＷを添加することにより保磁力
が向上することを見出した。本発明は異方性Ｍｎ−Ａｌ
−Ｃ系合金磁石１００に対し、重量比で０．２〜３．０
の割合でタングステンを添加することによりその保磁力
を高めたものである。Although this magnet is already used in electrical equipment, it has been desired that the coercive force of the magnet be increased in equipment such as electric motors and generators that are subject to reverse magnetic field force.
Therefore, as a result of repeated experiments to further improve the coercive force of this magnet, it was discovered that the coercive force can be improved by adding tungsten W. The present invention provides anisotropic Mn-Al
-0.2 to 3.0 in weight ratio to 100 C alloy magnets
The coercive force is increased by adding tungsten at a ratio of .
以下に代表的な実験データを例示しながら本発明をさら
に詳細に説明する。異方性Ｍｎ−Ａｌ−Ｃ系合金磁石は
、前記組成範囲内のＭｎ−Ａｌ−Ｃ合金を５３０〜８３
０℃の温度領域で押出加工や圧縮加工などの温間塑性加
工をすることにより製造される。The present invention will be described in further detail below while illustrating typical experimental data. The anisotropic Mn-Al-C alloy magnet contains Mn-Al-C alloy within the above composition range from 530 to 83%.
It is manufactured by performing warm plastic working such as extrusion or compression working in a temperature range of 0°C.
図に前記組成範囲内のＭｎ−Ａｌ−Ｃ合金」００に対し
てタングステンを種々の割合（重量比）で添加した合金
を温間塑性加工した後の添加量に対する保磁力の変化を
示す。ただし保磁力の変化はＭｎ−Ａｌ−Ｃ合金の保磁
力に対する比で表してある。図に示すように、Ｍｎ−Ａ
ｌ−Ｃ合金１００に対し０．２〜３．０の割合でタング
ステンを添加すると温間塑性加工後の保磁力はＭｎ−Ａ
ｌ−Ｃ合金の保磁力に比べて１０％以上向上する。特に
前記合金１００に対し１．０のタングステンを添加する
と２０％以上も向上する。このようにタングステンを添
加することにより保磁力が向上する原因は必ずしも明確
ではないが、１ 顕微鏡観察結果から結晶粒の微細化に
よる単磁区化の効果がタングステンの添加によつて高め
られているためと考えられる。The figure shows changes in coercive force with respect to the amount added after warm plastic working of alloys in which tungsten was added in various ratios (weight ratios) to the Mn-Al-C alloy "00" within the above composition range. However, the change in coercive force is expressed as a ratio to the coercive force of the Mn-Al-C alloy. As shown in the figure, Mn-A
When tungsten is added at a ratio of 0.2 to 3.0 to 100% of l-C alloy, the coercive force after warm plastic working becomes Mn-A
The coercive force is improved by 10% or more compared to the coercive force of the l-C alloy. In particular, when 1.0% tungsten is added to 100% of the alloy, the improvement is increased by more than 20%. The reason why the coercive force is improved by the addition of tungsten is not necessarily clear, but 1. From the results of microscopic observation, the effect of creating a single magnetic domain due to the refinement of crystal grains is enhanced by the addition of tungsten. it is conceivable that.
なお、タングステンの添加量がＭｎ−Ａｌ−Ｃ合金１０
０に対して３．０を越えると温間塑性加工中に強磁性相
の非磁性相・ への分解が起こりはじめて保磁力が低下
するため、タングステンの添加量は３．０以下であるこ
とが必要である。実施例 １
Ｍｎ７０．２％，Ａｌ２９．３％，ＣＯ．５％の組成の
もの１００に対して重量比でＷを１．０の割合で添加し
た円柱状の合金ビレツトを溶解鋳造により作成し、該ビ
レツトを７００℃の温度で押出加工（押出比５）した。Note that the amount of tungsten added is Mn-Al-C alloy 10
If the value exceeds 3.0 relative to 0, the ferromagnetic phase begins to decompose into a non-magnetic phase during warm plastic working and the coercive force decreases, so the amount of tungsten added should be 3.0 or less. is necessary. Example 1 Mn70.2%, Al29.3%, CO. A cylindrical alloy billet in which W was added at a weight ratio of 1.0 to 100 with a composition of 5% was created by melting and casting, and the billet was extruded at a temperature of 700°C (extrusion ratio 5). did.
押出加工後の合金の磁力優位方向における磁気特性値を
測定したところ、Ｂｒ＝５９３０Ｇ，ＢＨｃ＝３２２０
０ｅ，（ＢＨ）Ｍａｘ＝５．９ＭＧ・０ｅであり、Ｍｎ
−Ａｌ一Ｃ合金の磁気特性値と比較してＢＨＣが２４％
向上した。実施例 ２
Ｍｎ７２．０％，Ａｌ２７．Ｏ％，Ｃｌ．Ｏ％の組成の
もの１００に対しＷを２．０の割合で添加した円柱状の
合金ビレツトを溶解鋳造により作成し、該合金ビレツト
を６５０℃の温度で圧縮加工（圧縮率６０％）した。When the magnetic property values of the alloy in the dominant direction of magnetic force after extrusion processing were measured, Br=5930G, BHc=3220
0e, (BH)Max=5.9MG・0e, Mn
-BHC is 24% compared to the magnetic property value of Al-C alloy
Improved. Example 2 Mn72.0%, Al27. O%, Cl. A cylindrical alloy billet in which W was added at a ratio of 2.0 to 100% was prepared by melting and casting, and the alloy billet was compressed at a temperature of 650° C. (compression ratio 60%).
圧縮加工後の合金の磁化優位方向における磁気特性値を
測定したところ、Ｂｒ＝４０５０Ｇ，ＢＨｃ＝２６５０
０ｅ，（ＢＨ）Ｍａｘ＝２．２ＭＧ・０ｅであり、Ｍｎ
−Ａノ一Ｃ合金の磁気特性値と比較してＢＨＣが２０９
６向上した。以上のように、本発明は異方性Ｍｎ−Ａｌ
−Ｃ系合金磁石の保磁力を改良したもので、発電機や電
動機などの機器への使用に適している。When the magnetic property values of the alloy in the magnetization dominant direction after compression processing were measured, Br = 4050G, BHc = 2650
0e, (BH)Max=2.2MG・0e, Mn
- BHC is 209 compared to the magnetic property value of A-no-C alloy.
6 improved. As described above, the present invention provides anisotropic Mn-Al
-C alloy magnet with improved coercive force, suitable for use in equipment such as generators and electric motors.
図面はＭｎ−Ａｊ−Ｃ合金にタングステンを添加したと
きの添加量と保磁力との関係を示す。The drawing shows the relationship between the amount of tungsten added to the Mn-Aj-C alloy and the coercive force.
Claims (1)
１０）Ｍｎ−６．６）〜（（１／３）Ｍｎ−２２．２）
重量％、残部アルミニウムの組成からなる合金１００に
対して、タングステンを重量比で０．２〜３．０の割合
で添加した組成からなることる特徴とする異方性マンガ
ン−アルミニウム−炭素系合金磁石。1 Manganese 68.0-73.0% by weight, carbon ((1/
10) Mn-6.6) ~ ((1/3) Mn-22.2)
An anisotropic manganese-aluminum-carbon alloy characterized by having a composition in which tungsten is added at a weight ratio of 0.2 to 3.0 to Alloy 100, the balance being aluminum. magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53104067A JPS5931583B2 (en) | 1978-08-25 | 1978-08-25 | Anisotropic manganese-aluminum-carbon alloy magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53104067A JPS5931583B2 (en) | 1978-08-25 | 1978-08-25 | Anisotropic manganese-aluminum-carbon alloy magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5531155A JPS5531155A (en) | 1980-03-05 |
| JPS5931583B2 true JPS5931583B2 (en) | 1984-08-02 |
Family
ID=14370813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53104067A Expired JPS5931583B2 (en) | 1978-08-25 | 1978-08-25 | Anisotropic manganese-aluminum-carbon alloy magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5931583B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938746A (en) * | 2016-05-20 | 2016-09-14 | 中国计量大学 | Low-cost rare-earth-free nanocomposite permanent-magnetic material and preparation method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06227424A (en) * | 1991-06-03 | 1994-08-16 | Norin Suisansyo Shikoku Nogyo Shikenjo | Tractor |
-
1978
- 1978-08-25 JP JP53104067A patent/JPS5931583B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105938746A (en) * | 2016-05-20 | 2016-09-14 | 中国计量大学 | Low-cost rare-earth-free nanocomposite permanent-magnetic material and preparation method thereof |
| CN105938746B (en) * | 2016-05-20 | 2019-06-14 | 中国计量大学 | It is a kind of inexpensive without rare earth nano composite permanent-magnetic material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5531155A (en) | 1980-03-05 |
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