JPS5976856A - Permanent magnet material and its manufacture - Google Patents
Permanent magnet material and its manufactureInfo
- Publication number
- JPS5976856A JPS5976856A JP57185532A JP18553282A JPS5976856A JP S5976856 A JPS5976856 A JP S5976856A JP 57185532 A JP57185532 A JP 57185532A JP 18553282 A JP18553282 A JP 18553282A JP S5976856 A JPS5976856 A JP S5976856A
- Authority
- JP
- Japan
- Prior art keywords
- rare earth
- permanent magnet
- magnetization
- magnet material
- metallic compound
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular fabrication or treatment of ingot or slab
- C21D8/1211—Rapid solidification; Thin strip casting
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
（１） 発すｊの技術分野
本発明は、鉄−希土類系永久磁石旧制の６１４気竹性を
改善するための相打組成および製造方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (1) Technical Field of the Invention The present invention relates to a mutually compounding composition and manufacturing method for improving the 614 strength of an old iron-rare earth permanent magnet.
（２）従来技術と問題点
鉄−希土類系永久磁石材料の磁気特性は、一般・の金属
永久磁石材料に比べて、その温度特性が劣る。たとえば
、磁化の温度依存性については、材料の磁化は温度が２
００℃程度まではほとんど変化しないが、それ以上の温
度で磁化は急激に低下し、約３００℃で室温における値
の半分以下となる。このように低い温度で磁化が低下す
ることは、この材料を実際に使用する際に大きな制限と
なる。(2) Prior Art and Problems The magnetic properties of iron-rare earth permanent magnet materials are inferior to those of general metal permanent magnet materials in terms of temperature properties. For example, regarding the temperature dependence of magnetization, the magnetization of a material is
There is almost no change up to about 00°C, but at temperatures higher than that, the magnetization decreases rapidly, and at about 300°C it becomes less than half of the value at room temperature. This reduction in magnetization at such low temperatures is a major limitation in the practical use of this material.
（３）発明の目的
本発明は、このような欠点をＭ’ｆ ｎ％するため、材
料を構成する成分の一つである鉄の一部をコバルトでお
きかえた土、（料をＪ、ｊ、ｊ供す／′）にある。(3) Purpose of the Invention In order to eliminate such drawbacks by M'f n%, the present invention provides soil in which a part of the iron, which is one of the components constituting the material, is replaced with cobalt. , jprovide/').
（４）発明ｒノＩ］１１成
本発明は、組成が下記一般式で夛わされる鉄−コバルト
−ｆｌ： ：：Ｉ−： ｌｊ：１４化合物ｌから成るこ
とを特徴とする永久磁、Ｔｉ材旧ｔ （ＦｃＩＩＩＱ−
ｙｃＯ８）ｙ ＢＩｏｏ−Ｊ ｌ ’ｌ（■”’Ｗ”Ｉ
Ｏ６，Ｗ）＋００−Ｚ、１５≦−Ｘ≦５０ 、７５≦ｙ
り８５ 。(4) Invention I] 11 The present invention relates to a permanent magnet, characterized in that it consists of an iron-cobalt-fl:::I-:lj:14 compound l having a composition represented by the following general formula: Material old t (FcIIIQ-
ycO8)y BIoo-J l 'l(■"'W"I
O6, W) +00-Z, 15≦-X≦50, 75≦y
ri85.
７０−８、ｌ≦９０．４０；、’ｗ≦１００． ＲｉＪ
：Ｌａ以外の１１１１もしく にｔ ２ ｑＩＱ以上の
苗土４Ｈｔｊ金屈であ−って、上託糾成の材料を液イＡ
−′ｌｌ？＋急冷法によシ）形成し、焼鈍することａｒ
ηｒ（“しヒｌする。70-8, l≦90.40;,'w≦100. RiJ
: Seedling soil of 1111 or more than t 2 qIQ other than La, 4Htj Kinku-ku, and the material of the above-mentioned compaction is liquid A.
-'ll? + quenching method) forming and annealing ar
ηr(“I feel sorry for you.
ＩＱＩＩ ｉｌｌ、＜）１−−名）ニレ１４ 、％永久
ｆ！、４ 石’Ｉ’／ｌ １１”ｌ−Ｕ） Ｊｒ、＜気
’Ｉｆ １’ｌ−０）温度依存性を数丁９する一つの方
法として、添加物について紳々ｆｔＬｌ！ｌ介したＡ・
、−果、秩の一部をコバルトでおきかえるこさがイ１効
であることがわかった。IQII ill, <) 1-- name) Elm 14, % permanent f! , 4 Stone 'I'/l 11"l-U) Jr, <Qi'If 1'l-0) As one way to reduce the temperature dependence, A.
As a result, it was found that replacing part of the chichi with cobalt was the first effect.
例数なら、鉄の一部をコバルトでおきかえることによっ
て、月利中１こｉ；Ｌ４：Ｉ、−イ：じト１ｊ１化合物
のほかに、コバルト−イ１ｆ土力１化合物ｌか形成され
る７、後者の磁化のＹｒＡ 瓜依存件は両名のそイアよ
りもＪぐれている。したか−１で、彼者の効果によって
、本発明による利オ・１のイ市気特イつ゛の温度依イＪ
１ｑを改善でき磁化の値そのものイーＪｔ１す１１１さ
ぜること、おＪ、ひ保磁力の値を増加させる。Ｉ惧バー
”＞ ｉｉだな効Ｊ（４も有している。For example, by replacing part of the iron with cobalt, in addition to the compound L4:I, -I, -J1, a compound L of cobalt-I1F is formed. 7. The dependence of the latter's magnetization on YrA is different from that of both. In fact, due to their effects, the temperature dependence of the market temperature of the advantage of the present invention is 1.
1q can be improved by touching the magnetization value itself, and increasing the coercive force value. It also has an effect of 4.
（５）発明の実ノ１１１例
以下本発明？（二ついてＩ’ニア１面を参照［ッてＷ（
−細に説明する３、
利刺紹成をノリ、定するｊｃ ｌ”、＊： ｌ、 、才
４°、非晶η合金を了する〕こめの比り１１り勿のｆ山
（自およびその’ＩＩを’Ｉｆ ＭＦ（昭５７−５７０
０に基づきＪ、リポした。(5) 111 Actual Examples of Invention Is this invention the following? (Refer to page 1 of I'Near [tteW(
- Detailed explanation 3. To determine the value of the ratio jc l", The 'II 'If MF (Sho 57-570
J, repo based on 0.
液体超急冷法により非晶１１ｎ合金作製する場合、合金
を非晶η化するために、］）、Ｃ，Ｐなどの半金回（以
後メタロイド吉ｎＴ２ず）を添加する必要がある。本発
明（ζおｋｊるこノー＜、ｉ”ｅを含む合金てはこイ１
らのメタ１１イドの添加方法己−し７て、メタ「ｊイ１
−イーＦ（・Ｌ合金化さ一１１°で添加ずろ方法が最も
容易でに（ス実である。そして、ｆ’ｉｌ”ＩｔメタＩ
］イドの中で、ｌｔｍ ｅと合金化した場合１こ最もｊ
Ｘ７．い右１ρ化を示ＡものはＢである。When producing an amorphous 11n alloy by the liquid ultra-quenching method, it is necessary to add metalloid compounds such as ]), C, and P (hereinafter referred to as metalloid metals) in order to make the alloy amorphous. The present invention (alloy containing ζokjrukono<,i''e
The method of adding meta
-I F(・L alloyed at 11°) is the easiest method to add.
] Among the oids, when alloyed with ltm e, 1 is the most j
X7. The one that shows the right 1ρ conversion is B.
第１１ヌ１に示ずごｃ：＜、Ｆｅ−ｎ合金においては、
↓−−引イ；−１９−バ己廿！１矛メ４（、ゴ〉ン（く
ニュ１重シ虻二く；１力湘り章尊ご（１λ２：すＩｉｔ
＋’！ｐう１＜ｌ−１，」す（々りいΣＩひ１丁する・
Ｆ’ｔｅとＣｏは同じ遷移金ハであるこＬかｌ；）、Ｆ
ｅの一部をＣｏでおきかえた組成においても、これらＦ
ｅ（！：Ｃｏ０）総量と飽和磁化との１１１係は第１図
に示したＦｅ計と飽和磁化さの関係と同様な傾向を示す
。このことから本発明によるメタロイド成分Ｂの、計は
１５〜２５原子チの範囲とし、た。Not shown in No. 11 c: <, In Fe-n alloy,
↓－－Hide;－19－Base! 1 spear 4 (, go)
+'! pu1<l-1,''
F'te and Co are the same transition gold.
Even in a composition in which a part of e is replaced with Co, these F
The 111 coefficient between the total amount of e(!:Co0) and the saturation magnetization shows the same tendency as the relationship between the Fe meter and the saturation magnetization shown in FIG. From this, the total amount of metalloid component B according to the present invention was determined to be in the range of 15 to 25 atoms.
Ｆｅの一部をおきかえるＣｏ′ｈＪは、本発明における
組成の１っである（（Ｆｅ１００−Ｘ ”Ｘ）８２ Ｂ
＋８）９０Ｌａ５Ｐｒ５に基づき決定した。このデータ
を第２図に示す。この図は横軸にＣｏ邦の原子％Ｘを、
縦軸に磁場１５ｋｏｅにおける☆ノ３化をとったときの
データである。ｈ犬半１の４６釧ｉ７晶７Ｑｌは７００
’Ｃである。Co'hJ, which replaces a part of Fe, is one of the compositions in the present invention ((Fe100-X ''X)82 B
+8) Determined based on 90La5Pr5. This data is shown in FIG. In this figure, the horizontal axis shows the atomic %X of Co,
This is data when the vertical axis represents 3 stars at a magnetic field of 15 koe. h dog half 1 46 sen i7 crystal 7Ql is 700
'C.
第２図に示すごとく、この組成においてＦｅとおきかえ
るＣｏ１４を増すにつれて磁化は上昇し、９隻祖）虞俣
−せ性皐−工最も（ぐなり、さらにｃｏ量を増すと磁化
は徐々に低下する。この結果から、Ｃｏ貝は−Ｖり更〕
づ１μ」ユとし、その最大周は５０ ）Ｍ −７−％と
じた。これは５０原子チ以上では、磁化の値はｃｏ １
５原子−の場合とほぼ同等であれないためである。As shown in Figure 2, in this composition, as the amount of Co14 replaced with Fe increases, the magnetization increases, and as the amount of Co increases further, the magnetization gradually decreases. From this result, Co shellfish is -V Risara]
The maximum circumference was 50) M-7%. This means that for 50 atoms or more, the magnetization value is co 1
This is because it is not nearly equivalent to the case of 5 atoms.
一方、希土類成分さしでＣＪ１前記特願昭５７−５７０
０にて開示したごさく、Ｌａが不可欠である。On the other hand, in terms of rare earth components, CJ1 said patent application No. 57-570.
0, La is indispensable.
また、前記特願昭５７−５７００では、ヒステリシスル
ープの改善のために、Ｐｒの添加が有効であったが、本
発明ではＰ、の添加がなくてもヒステリシスループは正
常な形を示すことがわかった。Furthermore, in the above-mentioned Japanese Patent Application No. 57-5700, the addition of Pr was effective for improving the hysteresis loop, but in the present invention, the hysteresis loop can exhibit a normal shape even without the addition of P. Understood.
Ｌａ１Ｊを規定するデータを第３図に示す。第３図は（
（Ｆｅ７Ｇｃｏ３０）１１２ ＢＩｆｆ）９゜（ＬａＷ
Ｐｒｌｏｏ−Ｗ）Ｉｌｌ について、横軸にＬａ量の原
子チＷを、縦軸に保磁力をとったときのデータである。FIG. 3 shows data defining La1J. Figure 3 is (
(Fe7Gco30)112 BIff)9°(LaW
Prloo-W)Ill is data when the horizontal axis represents the amount of atoms of La and the vertical axis represents the coercive force.
焼針、温ＪＫは７００℃である。このクラフかられかる
ように、Ｌａか１９息女叫よｌ配円林１ノ剋酊山ｂＬａ
が４０Ｗ子−以１ｐ多台には、超急冷後の状態で、すて
にＰｒ（！：Ｆｅの化合物と考えられる結晶が形成され
るため（Ｘｉ回ｖｊにより、結晶の存在を示す回折ピー
クが認められる）−１保磁力は高くできない。才た、Ｌ
ａ習が多い場合には、Ｌａ吉Ｃｏの化合物が形成される
ために保磁力は高く保たれる。The temperature of the baked needle is 700°C. As if to be scolded by this craft, La or 19's daughter shouts l Saienrin 1 no Kakuzan bLa
However, after ultra-quenching, crystals thought to be a compound of Pr(!:Fe) are formed (Xi times vj shows a diffraction peak indicating the presence of crystals). )-1 Coercive force cannot be made high.
When there are many a-xis, the coercive force is kept high because a Lakichi Co compound is formed.
ここで示した例ではＬａ以外の希土類はＰｒであるが、
一般的には、他の希土類元素を含む場合でも、Ｌａが４
０原子係以上あれば、他の希土類元素を添加でき、しか
も超急冷後の状態でも非晶質となる。In the example shown here, the rare earth other than La is Pr,
Generally, even when other rare earth elements are included, La is 4
If the atomic ratio is 0 or more, other rare earth elements can be added, and even after ultra-quenching, the material becomes amorphous.
以上のことをもとにして、種々検討した結果得られた、
本発明による材料組成は、（（Ｆｅｌｏｏ−ＸＣｏＸ
）ＹＢｊＯＯ−３１４２（ＬａＷＲｌｏｏ−Ｗ）１００
−２である。ただし、Ｒはり、以外の希土類金属の１柚
もしくは２梗以上ここで、１５≦Ｘ≦５０ 、７５≦ｙ
≦８５ 、７０≦２≦９０゜４０≦Ｗ≦１００
（実施例−１）
合金組成は（（）ｅ７゜Ｃｏ３ｇ）６２Ｂ１６）ｇ６Ｌ
ａ５Ｐｒ６である。純度９９．５チのＬａ＋Ｐｒおよび
純度９９．９チのＦｅ １Ｆｅ−ＢｒＣｏを用いて、上
記組成のインゴットを作成した。このインゴットを小片
に砕き、こμフＴＩ、ｌｌｌ′ｉ〜数即（）刈ポン状試
オ゛１をイ１僅ソした。この試料は、Ｘ線解イフ［の結
果、非晶）西であることを桶゛認した。Based on the above, we obtained the results of various studies.
The material composition according to the invention is ((Feloo-XCoX
) YBjOO-3142 (LaWRloo-W) 100
-2. However, if R beam is one or more rare earth metals other than R beam, 15≦X≦50, 75≦y
≦85, 70≦2≦90゜40≦W≦100 (Example-1) The alloy composition is (()e7゜Co3g)62B16)g6L
a5Pr6. An ingot having the above composition was created using La+Pr with a purity of 99.5% and Fe1Fe-BrCo with a purity of 99.9%. This ingot was broken into small pieces and a few pieces of powder were poured into the ingot. This sample was confirmed to be amorphous after X-ray analysis.
７００℃で焼鈍した試別につぃ′Ｃ磁化の温度変化をＨ
＋、ｖｌべろと（？ｌｌｌ定ＭＸ’Ｍ４１５ｋｏｅ ）
、ｉＥ４図Ｊｃ示’Ｊように、本発明にょるＣＯを含
む試別は、ｃｏを合成ない試料（組成” （ＦｅｌＨＢ
＋５）ｏｎＬａ５Ｐｒ５．．１ｔｉｌ造法、焼鈍条件は
同じ）に比べて、磁化が低下し始める温度は従来の約２
０ Ｑ ℃から約４．００ ℃とより高いことが碇認で
き、本発明が有効であることがわかる。また、その他の
効果として、磁化の値を＾くできることも明白である。H
+, vl tongue (?llll fixed MX'M415koe)
As shown in Figure Jc, iE4, the sample containing CO according to the present invention is a sample (composition) that does not synthesize co.
+5) onLa5Pr5. ．． 1til manufacturing method, same annealing conditions), the temperature at which magnetization starts to decrease is about 2
It can be seen that the temperature is higher than 0 Q°C to about 4.00°C, which shows that the present invention is effective. It is also clear that as another effect, the value of magnetization can be increased.
この材料の保磁力と焼鈍温度との関係を調べたところ、
第５図に示すように、７ｏｏ℃で焼鈍したときに最も高
い保磁力９．５ｋｏｅを示すことがわかった。＃ｉ釧一
時間を１時間から１８時間の範囲の神々の時間まで延長
した場合ｊこも、保磁力の変化は認められなかった。ま
たｃｏを含む試料の保磁力は、ｃｏを含まない場合に比
べで、３倍以上であり、ｃｏの添加は保磁力の向上にも
効果かあることが確認できる。焼鈍温度は、第５図から
５５０〜９００℃が最適である。When we investigated the relationship between the coercive force and annealing temperature of this material, we found that
As shown in FIG. 5, it was found that the highest coercive force of 9.5 koe was exhibited when annealed at 70°C. No change in the coercive force was observed when the length of time was extended to the divine time in the range of 1 to 18 hours. Furthermore, the coercive force of the sample containing co was more than three times that of the sample not containing co, confirming that the addition of co was effective in improving the coercive force. From FIG. 5, the optimum annealing temperature is 550 to 900°C.
（実施例−２）
合金組成は（（Ｆｅ７０Ｃ０３０）ｌ１２Ｂ＋８）９０
ＬａＳＴｂ６であり、製造法は実施例−１と同じである
。この材料の磁化の温度変化（測定磁場１５ｋｏｅ）は
第６図に示すような変化を示し、ｃｏを含まない試料に
比べてずぐれている。このことから、本発明の有効性を
確認できる。さらに、別の効果として磁化の値もより高
くできるＬいうことも明白である。(Example-2) The alloy composition is ((Fe70C030)l12B+8)90
It is LaSTb6, and the manufacturing method is the same as in Example-1. The magnetization of this material changes with temperature (measured magnetic field: 15 koe) as shown in FIG. 6, which is superior to that of a sample that does not contain cobalt. From this, the effectiveness of the present invention can be confirmed. Furthermore, it is clear that another effect is that the magnetization value can also be increased.
この材料の保磁力と焼鈍温度の関係を第７図に示す。こ
の図かられかるように、保磁力は６００’Ｃ焼鈍で、最
も高い値１０．５ ｋｏｅを示す。焼鈍時間による保磁
力の変化は認められず、１時間の焼鈍で十分である。ま
た、この材料の保磁力はＣＯを含まないものの約４倍以
上を示し、本発明の別の効果を明白に示している。The relationship between coercive force and annealing temperature of this material is shown in FIG. As can be seen from this figure, the coercive force shows the highest value of 10.5 koe at 600'C annealing. No change in coercive force due to annealing time was observed, and annealing for 1 hour was sufficient. Furthermore, the coercive force of this material is about four times or more than that of a material that does not contain CO, clearly showing another effect of the present invention.
これらの結果から、焼鈍温度は５５０〜９５０’Ｃか最
適である。From these results, the optimum annealing temperature is 550 to 950'C.
（６）発明の効果
本発明によれは、磁化の温度ｆｌ’ｂ性が改善でき、さ
らに別の効果として、磁化および保磁力をより高くでき
る。(6) Effects of the Invention According to the present invention, the temperature fl'b property of magnetization can be improved, and as another effect, the magnetization and coercive force can be further increased.
さらに、本発明により得られる合金の応用法の１つとし
て、この合金を微粉化し、これを樹脂等で固着すること
によって、加工性に富む、高性能永久磁石が実現できる
。Furthermore, as one method of applying the alloy obtained by the present invention, a high-performance permanent magnet with excellent workability can be realized by pulverizing this alloy and fixing it with resin or the like.
第１図はＦｅ−ＨにおけるＦｅ洲と飽和磁化の関係を示
す図、第２図はＣＯの添加効果を示す図、第３図はＬａ
の効果を示す図、第４図は磁化の温度変化を示す図、第
５図は保磁力と焼鈍温度との関係を示す図、第６図は磁
化の温度変化を示す図、第７図は保磁力と焼鈍温度との
１ダ１係を示す図である。
７０ ７ｆ ｍ ｌ！； 豫 ２５Ｆ
ｅ量 （源σ２）
す１図
Ｃｏ蓋、χＣ漂チ別
２ｆＪFigure 1 is a diagram showing the relationship between Fe and saturation magnetization in Fe-H, Figure 2 is a diagram showing the effect of adding CO, and Figure 3 is a diagram showing the relationship between Fe and saturation magnetization in Fe-H.
Figure 4 is a diagram showing the temperature change in magnetization, Figure 5 is a diagram showing the relationship between coercive force and annealing temperature, Figure 6 is a diagram showing the temperature change in magnetization, and Figure 7 is a diagram showing the temperature change in magnetization. FIG. 3 is a diagram showing the 1-Da-1 relationship between coercive force and annealing temperature. 70 7f m l! ; Yu 25F
E amount (source σ2) 1 Figure Co cover, χC drift 2fJ
Claims (3)
バルト−希土類化合物から成ることを特徴とする永久磁
石材料。 （（ＦｅｌＧ。−Ｘ Ｃ０Ｘ）Ｖ Ｂ＋００−）’）Ｚ
（ＬａｗＲＩ’０Ｏ−Ｗ）１００まただし、ＲはＬａ以
外の１種もしくは２種以上の希土類金属 １５≦Ｘ≦５０．７５≦ｙ≦８５．７０≦２≦９０ 、
４０≦Ｗ≦１００(1) A permanent magnet material characterized in that the composition of the material is an iron-cobalt-rare earth compound represented by the following general formula 611. ((FelG.-X C0X)V B+00-)')Z
(LawRI'0O-W) 100, where R is one or more rare earth metals other than La 15≦X≦50.75≦y≦85.70≦2≦90,
40≦W≦100
−７）Ｚ（ＬａＷＲｌｏｏ −ｗ）１００−Ｚで表わさ
れる鉄−コバルト−希土類化合物を形成する工程、該鉄
−コノクルｌ・−希土類化合物の融液を超急冷してリボ
ン状の非晶質体を形成する工程、該リボン状の非晶質体
を焼鈍する工程を有することを特徴とする永久磁石材料
の製法。(2) Composition is +("eloo-xCox)y B100
-7) Step of forming an iron-cobalt-rare earth compound represented by Z(LaWRloo-w)100-Z, by ultra-quenching the melt of the iron-cobalt-rare earth compound to form a ribbon-shaped amorphous body. 1. A method for producing a permanent magnet material, comprising the steps of: forming a ribbon-shaped amorphous body; and annealing the ribbon-shaped amorphous body.
材料とすることを特徴とする特許請求の範囲第２項記載
の永久磁石月１の製法。(3) A method for manufacturing the permanent magnet 1 according to claim 2, characterized in that the annealed liphon-like amorphous material is crushed and then fixed to form a magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57185532A JPS5976856A (en) | 1982-10-22 | 1982-10-22 | Permanent magnet material and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57185532A JPS5976856A (en) | 1982-10-22 | 1982-10-22 | Permanent magnet material and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5976856A true JPS5976856A (en) | 1984-05-02 |
Family
ID=16172444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57185532A Pending JPS5976856A (en) | 1982-10-22 | 1982-10-22 | Permanent magnet material and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5976856A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61159708A (en) * | 1984-12-31 | 1986-07-19 | Kaneo Mori | Permanent magnet |
| JPS61174364A (en) * | 1985-09-17 | 1986-08-06 | Mori Kaneo | Permanent magnet |
| JPS6348805A (en) * | 1986-08-19 | 1988-03-01 | Tohoku Metal Ind Ltd | Manufacture of rare-earth magnet |
| JPS63197305A (en) * | 1986-05-17 | 1988-08-16 | Tokin Corp | Rare-earth permanent magnet and manufacture thereof |
| JPS63226007A (en) * | 1986-10-31 | 1988-09-20 | Tokin Corp | Rare-earth magnet and manufacture thereof |
| JPS63232301A (en) * | 1986-03-20 | 1988-09-28 | Hitachi Metals Ltd | Magnetic anisotropic bond magnet, magnetic powder used therefor, and manufacture thereof |
| US4782994A (en) * | 1987-07-24 | 1988-11-08 | Electric Power Research Institute, Inc. | Method and apparatus for continuous in-line annealing of amorphous strip |
| USRE34838E (en) * | 1984-12-31 | 1995-01-31 | Tdk Corporation | Permanent magnet and method for producing same |
| JP2022054231A (en) * | 2020-09-25 | 2022-04-06 | トヨタ自動車株式会社 | Magnetic material and manufacturing method thereof |
-
1982
- 1982-10-22 JP JP57185532A patent/JPS5976856A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61159708A (en) * | 1984-12-31 | 1986-07-19 | Kaneo Mori | Permanent magnet |
| USRE34838E (en) * | 1984-12-31 | 1995-01-31 | Tdk Corporation | Permanent magnet and method for producing same |
| JPS61174364A (en) * | 1985-09-17 | 1986-08-06 | Mori Kaneo | Permanent magnet |
| JPS63232301A (en) * | 1986-03-20 | 1988-09-28 | Hitachi Metals Ltd | Magnetic anisotropic bond magnet, magnetic powder used therefor, and manufacture thereof |
| JPS63197305A (en) * | 1986-05-17 | 1988-08-16 | Tokin Corp | Rare-earth permanent magnet and manufacture thereof |
| JPS6348805A (en) * | 1986-08-19 | 1988-03-01 | Tohoku Metal Ind Ltd | Manufacture of rare-earth magnet |
| JPS63226007A (en) * | 1986-10-31 | 1988-09-20 | Tokin Corp | Rare-earth magnet and manufacture thereof |
| US4782994A (en) * | 1987-07-24 | 1988-11-08 | Electric Power Research Institute, Inc. | Method and apparatus for continuous in-line annealing of amorphous strip |
| WO1990003244A1 (en) * | 1987-07-24 | 1990-04-05 | Allied-Signal Inc. | Method and apparatus for continuous in-line annealing of amorphous strip |
| JP2022054231A (en) * | 2020-09-25 | 2022-04-06 | トヨタ自動車株式会社 | Magnetic material and manufacturing method thereof |
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