JPS63117413A - Manufacture of rare earth magnet - Google Patents
Manufacture of rare earth magnetInfo
- Publication number
- JPS63117413A JPS63117413A JP26425386A JP26425386A JPS63117413A JP S63117413 A JPS63117413 A JP S63117413A JP 26425386 A JP26425386 A JP 26425386A JP 26425386 A JP26425386 A JP 26425386A JP S63117413 A JPS63117413 A JP S63117413A
- Authority
- JP
- Japan
- Prior art keywords
- rare earth
- gel
- solution
- magnet
- powder
- 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
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 23
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000010298 pulverizing process Methods 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003980 solgel method Methods 0.000 claims description 3
- 150000004703 alkoxides Chemical class 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229920000620 organic polymer Polymers 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000011347 resin Substances 0.000 abstract description 6
- 229920005989 resin Polymers 0.000 abstract description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract description 4
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000243 solution Substances 0.000 abstract 5
- 239000006104 solid solution Substances 0.000 abstract 3
- 230000005415 magnetization Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- YQEZLKZALYSWHR-UHFFFAOYSA-N Ketamine Chemical compound C=1C=CC=C(Cl)C=1C1(NC)CCCCC1=O YQEZLKZALYSWHR-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は任意形状の希土類磁石の製造方法に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a method for manufacturing a rare earth magnet of arbitrary shape.
従来の希土類磁石の製造方法には２種類有っ几。 There are two types of conventional manufacturing methods for rare earth magnets.
一つは、焼結法と呼ばれるもので、希土類磁石粉末を不
活性ガス中で磁場成形し焼結しｔ後、所望の形状に研磨
加工し着磁するものであった。他の一つけ、樹脂結合法
と呼ばれるもので、希±ａｍ石粉末−と樹脂とを混練し
ｔ後、磁場成形することにより所望の形状に成形し着磁
するものである。One method is called a sintering method, in which rare earth magnet powder is magnetically formed in an inert gas, sintered, and then polished into a desired shape and magnetized. Another method is called the resin bonding method, in which rareite powder and resin are kneaded and then molded into a desired shape by magnetic field molding and magnetized.
しかし、前述の従来技術では次のような欠点が有る。す
なわち、
（焼結法）
焼結法は磁気性能は高いが、形状の任意性に欠け、加工
しないと形状を出せない。また、もろくて欠けやすいｔ
め加工も困難という欠点を有する。However, the above-mentioned conventional technology has the following drawbacks. In other words, (Sintering method) Although the sintering method has high magnetic performance, it lacks arbitrary shape and cannot be shaped without processing. Also, it is brittle and easily chipped.
It also has the disadvantage of being difficult to process.
（樹脂結合法）
樹脂結合法は、加工が不要で、特Ｋ ＩＩソング状磁石
が成形で錬るという長所を持っているが、磁気性能が低
く、さらに耐熱性が１００℃以下であり低耐熱性である
という欠点を有している。(Resin bonding method) The resin bonding method has the advantage that no processing is required and the special K II song-shaped magnet can be molded, but it has low magnetic performance and has low heat resistance as it has a heat resistance of 100℃ or less. It has the disadvantage of being gender-neutral.
そこで１本発明はこのような問題点を解決するもので、
その目的とするところは、任意形状の希土類磁石を容易
Ｋ１１ｔ造できるようＫし、さらに耐熱性が高い、希土
類磁石の製造方法を提供するところに有る。Therefore, the present invention solves these problems.
The purpose is to provide a method for manufacturing rare earth magnets that can be easily manufactured into rare earth magnets of arbitrary shapes and that also have high heat resistance.
本発明の希土類磁石の製造方法は、任意形状の磁石を以
下の工程により製造することを特徴とする。The method for manufacturing a rare earth magnet according to the present invention is characterized in that a magnet having an arbitrary shape is manufactured by the following steps.
α）希土類金Ｉｔ（適当な磁石組成の合金）を溶解し、
溶体化後、粉砕し希土類磁石粉末とする工程。α) Melting rare earth gold It (alloy with suitable magnet composition),
After solution treatment, the process is pulverized to produce rare earth magnet powder.
ｂ）少なくとも金属アルコキシドあるいけ超微粉末シリ
カを原料とするゾル−ゲル法によるゾルに王妃希土類磁
石粉末を添加する工程。b) A step of adding queen rare earth magnet powder to a sol produced by a sol-gel method using at least metal alkoxide or ultrafine powdered silica as a raw material.
Ｃ）磁場をかけながらゲル化する工程。C) A process of gelling while applying a magnetic field.
ｄ）ゲル化後脱磁する工程。d) A step of demagnetizing after gelation.
−）王妃ゲルを乾燥しドライゲルとする工程。-) A step of drying the queen gel to form a dry gel.
ｆ）ドライゲルを焼結する工程。f) Sintering the dry gel.
ｇ）着磁する工程。g) Step of magnetizing.
ま比、希土類磁石粉末は一般に、水や酸素に触れると発
火するので、それを防ぐ之め、希土類磁石粉末を有機ポ
リマーでコーティングしｔ後にゾルに添加することｈ；
必要になる。However, rare earth magnet powder generally ignites when it comes into contact with water or oxygen, so to prevent this, it is necessary to coat the rare earth magnet powder with an organic polymer and then add it to the sol.
It becomes necessary.
実施例ｔ
いずれも重量比でａｍ ａチ、 Ｃｏが１８％、残部が
ＩＦｇとなるように、高周波溶解炉を用いてＡＴ雰囲気
中で溶体化後ボールミルで粉砕し８ｍ２ （ｃｏ Ｏ，
？Ｆ＋＃り１丁の粒材２〜３０μｍの粉末とした。この
粉末をポリプレン樹脂液中に混合しコーティングをし九
〇
ついで、エチルシリケート１００ｃｃを塩酸で加水分解
し几溶液に１匂の前記粉末を加え、ＰＨ５，０に調整し
、外径１０ｃＩｊＬ、内径５１のリング状の容器に移し
比。これに磁場をかけながら、−夜装置しゲル化させた
。ゲル化後、脱磁を行ない、６０℃で１週間、フタの開
孔率を１ｔ４にして乾燥し、リング状のドライゲルを得
比。ドライゲルを１０００℃で焼結して、着磁しリング
状の磁石とすること６Ｚできた。Example t In each case, the weight ratio was 8 m2 (co O,
? One piece of F+# granules was made into a powder with a diameter of 2 to 30 μm. This powder was mixed in a polyprene resin solution and coated.Next, 100 cc of ethyl silicate was hydrolyzed with hydrochloric acid, and 1 odor of the above powder was added to the solution, the pH was adjusted to 5.0, and the outer diameter was 10 cIjL and the inner diameter was 51 cm. Transfer to a ring-shaped container. While applying a magnetic field, this was placed in an apparatus overnight to gel. After gelation, it was demagnetized and dried at 60°C for one week with a lid porosity of 1t4 to obtain a ring-shaped dry gel. The dry gel was sintered at 1000°C and magnetized to form a ring-shaped magnet.
この磁石は、５００℃まで上げても、素形することもな
く、又磁力の強さも変化しなかった。Even when the temperature was raised to 500° C., this magnet did not form, and the strength of its magnetic force did not change.
実施例２
いずれも重量比で８ｍ３５％、残部をコバルトである溶
体化物’ｌ （Ｂｍ Ｃｏｓ ）を粉砕したのち、実施
例１と同様にして、リング状の磁石を作成した。Example 2 A ring-shaped magnet was prepared in the same manner as in Example 1 after pulverizing a solution compound 'l (Bm Cos ) having a weight ratio of 8m35% and the balance being cobalt.
この磁石も実施例１と同様に耐熱性のあるものであった
。Like Example 1, this magnet also had heat resistance.
実施例３゜
いずれも重量比で、Ｎｄ ２７ 係、Ｂ１チ、残りをＦ
＋ｌで、溶体化処庁し九粉末を作成した（ＮｄｚＦｇ１
４Ｂ）。以下実施例１．と同様にしてリング状の磁石を
作成し比。Example 3 In all cases, the weight ratio is Nd 27, B1, and F the rest.
NdzFg1 powder was prepared by solution treatment with +l.
4B). Example 1 below. Create a ring-shaped magnet in the same way as the ratio.
この磁石も実施例１と同様に耐熱性のあるものであう之
。This magnet is also heat resistant like Example 1.
実施例４゜
実施例２の磁性粉末を用いて、エチルシリケートの加水
分解し比ゾルに、Ｆ３ｉ０ｚ微粉末を重量比で１：１と
なるよう加え激しく攪拌した。このゾル混合液に、磁性
粉末を加え九のち実施例１と同様に処理をして、磁石を
得た。Example 4 Using the magnetic powder of Example 2, F3i0z fine powder was added to a hydrolyzed sol of ethyl silicate at a weight ratio of 1:1 and stirred vigorously. Magnetic powder was added to this sol mixture, and the mixture was then treated in the same manner as in Example 1 to obtain a magnet.
この磁石は耐熱性ｈ；あり、実施例２よりも割れにくい
ものであり比ゆ
その他の磁性材料として１本実施例以外に、 Ｎｄ−Ｃ
Ｏ−Ｆｄ−情系又はＮｄ −Ｃｏ−０ｘ −Ｆｇ−Ｂ系
又は前記のものの一部をｙｂ、 ｚｒ、’ｖ、 Ｔ
ａ などで置換したもの、又はＢｍ −Ｃｏ −Ｃｕ
−Ｆｄ −Ｂ系の一部をｙｂ、 ｚｒ、 Ｖ、
Ｔａ などで置換しｔ希土類磁石などでもよい。さら
に希土類としてＯｅ、Ｐｒ。This magnet has a heat resistance of h; and is more difficult to break than Example 2. In addition to this example, Nd-C is used as another magnetic material.
yb, zr, 'v, T
a substituted with etc., or Bm -Co -Cu
-Fd -Part of the B system is yb, zr, V,
A rare earth magnet or the like may be used instead of Ta. Furthermore, Oe and Pr are rare earth elements.
Ｐｍ、Ｅｕρｄ、 Ｔｂ、 Ｄｙ、 Ｈｏ、 Ｗ
ｒ、 Ｔｍ、 Ｙ６．Ｌｕなどの）ちの一種又は複
数種を選択し之ものでもよい。Pm, Euρd, Tb, Dy, Ho, W
r, Tm, Y6. One or more types of chi (such as Lu) may be selected.
以上述べ几ようｋ、本発明によれば、希土類磁石粉末を
ゾル−ゲル法のゾルでバインドしている之め、高耐熱性
で任意形状の磁石を製造することｈｔでンるようになっ
た。このような磁石は高温下で作動するモーター等に応
用できる。As stated above, according to the present invention, since the rare earth magnet powder is bound with the sol of the sol-gel method, it has become possible to manufacture magnets with high heat resistance and arbitrary shapes. . Such magnets can be applied to motors that operate at high temperatures.
以 上that's all
Claims (2)
を特徴とする希土類磁石の製造方法。 α）希土類金属（適当な磁石組成の合金）を溶解し溶体
化後、粉砕し希土類磁石粉末とする工程、 ｂ）少なくとも金属アルコキシドあるいは超微粉末シリ
カを原料とするゾル−ゲル法によるゾルに上記希土類磁
石粉末を添加する工程 ｃ）磁場をかけながらゲル化する工程 ｄ）ゲル化後脱磁する工程 ｅ）上記ゲルを乾燥しドライゲルとする工程ｆ）ドライ
ゲルを焼結する工程 ｇ）着磁する工程(1) A method for manufacturing a rare earth magnet, characterized by manufacturing a magnet of any shape by the following steps. α) A step of melting and solutionizing rare earth metals (alloys with appropriate magnet composition) and then pulverizing them to obtain rare earth magnet powder; b) Adding the above to the sol by the sol-gel method using at least metal alkoxide or ultrafine powder silica as a raw material. Step of adding rare earth magnet powder c) Step of gelling while applying a magnetic field d) Step of demagnetizing after gelling e) Step of drying the above gel to form a dry gel f) Step of sintering the dry gel g) Magnetizing Process
機ポリマーでコーティングした後にゾルに添加すること
を特徴とする希土類磁石の製造方法。(2) A method for producing a rare earth magnet, which comprises coating the rare earth magnet powder according to claim 1 with an organic polymer and then adding it to a sol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26425386A JPS63117413A (en) | 1986-11-06 | 1986-11-06 | Manufacture of rare earth magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26425386A JPS63117413A (en) | 1986-11-06 | 1986-11-06 | Manufacture of rare earth magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63117413A true JPS63117413A (en) | 1988-05-21 |
Family
ID=17400606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26425386A Pending JPS63117413A (en) | 1986-11-06 | 1986-11-06 | Manufacture of rare earth magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63117413A (en) |
-
1986
- 1986-11-06 JP JP26425386A patent/JPS63117413A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2016032116A (en) | Manganese-bismuth based magnetic material, manufacturing method thereof, manganese-bismuth based sintered magnet, and manufacturing method thereof | |
| JPH07106110A (en) | Powder composition for manufacturing bond magnet, and magnetic anisotropic permanent magnet, and manufacture of magnetic anisotropic permanent magnet | |
| JPS6036081B2 (en) | Permanent magnets and their manufacturing method | |
| CN103317145B (en) | Chemical method prepares the method for samarium-cobalt magnetic powder | |
| JP3099895B2 (en) | Method for producing molded body made of hard ferrite | |
| JPS6338216A (en) | Manufacture of corrosion-resistant rare-earth magnetic powder and magnetic unit made of the powder | |
| JPS63117413A (en) | Manufacture of rare earth magnet | |
| JPS6127457B2 (en) | ||
| US3811962A (en) | Large grain cobalt-samarium intermetallic permanent magnet material stabilized with zinc and process | |
| JPS59143002A (en) | Organic binder of fine pulverous powder for powder metallurgy | |
| JPH05335120A (en) | Anisotropic bonded manget manufacturing magnet powder coated with solid resin binder and manufacture thereof | |
| JP6213726B2 (en) | Method for manufacturing permanent magnet | |
| JP4590920B2 (en) | Magnetic powder | |
| JPS63234503A (en) | Manufacture of permanent magnet | |
| JPH10261514A (en) | Magnetic material | |
| JPH05326229A (en) | Permanent magnet powder and production thereof | |
| JPH04125907A (en) | Nanocomposite permanent magnet material | |
| JP2004115921A (en) | Sm-Fe-N BASED ALLOY POWDER AND METHOD FOR MANUFACTURING THE SAME | |
| JPH10140211A (en) | Production of magnetic material | |
| CN106876075B (en) | A kind of magnetic material and preparation method thereof | |
| JPH03295204A (en) | Permanent magnet and manufacture thereof | |
| JP2008024979A (en) | Method for producing rare earth-iron-nitrogen-based magnet powder | |
| JP2002180111A (en) | Method for manufacturing rare earth-transition metal alloy powder, and resultant product | |
| JP2000297306A (en) | Production of magnetic powder | |
| JPS63216307A (en) | Alloy powder for magnet |