JPH08181011A - Rare earth magnet - Google Patents
Rare earth magnetInfo
- Publication number
- JPH08181011A JPH08181011A JP7255320A JP25532095A JPH08181011A JP H08181011 A JPH08181011 A JP H08181011A JP 7255320 A JP7255320 A JP 7255320A JP 25532095 A JP25532095 A JP 25532095A JP H08181011 A JPH08181011 A JP H08181011A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- resin
- rare earth
- powder
- 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
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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0578—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together bonded together
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は磁石の基本組成が
Ｒ、Ｆｅ、Ｂからなり樹脂結合法でつくられた希土類磁
石に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rare earth magnet whose basic composition is R, Fe and B and which is produced by a resin bonding method.
【０００２】[0002]
【従来の技術】希土類金属、鉄、ボロンからなる希土類
金属間化合物の磁石化の試みは、例えばクーン等は（Ｆ
ｅ．８２．Ｂ．１８）．９Ｒｂ．０５Ｄａ．０５の超急
冷法リボンをアニールするとｉＨｃ＝９ｋＯｅ、Ｂｒ＝
５ｋＧ、但し（ＢＨ）ｍａｘが低い。（Ｎ．Ｃ．Ｋｏｏ
ｎ他Ａｐｌｌ．Ｐｈｙｓ．Ｌｅｔｅｒ３９．（１０），
１９８１．８４０−８４２）希土類・鉄・ボロン系超急
冷アモルファスリボンは粉末状でその諸特性を測定する
ことによって磁石化の可能性を論じている。実用材料と
しての評価は見当たらない。2. Description of the Related Art Attempts to magnetize rare earth intermetallic compounds composed of rare earth metals, iron, and boron have been reported in, for example, Kuhn et al.
e. 82. B. 18). 9Rb. 05 Da. When the 05 quenching ribbon is annealed, iHc = 9 kOe, Br =
5kG, but (BH) max is low. (NC Koo
n et al. Appl. Phys. Letter 39. (10),
1981.840-842) The ultra-quenched amorphous ribbon of rare earth / iron / boron system is in powder form and discusses the possibility of magnetization by measuring its properties. No evaluation as a practical material is found.
【０００３】[0003]
【発明が解決しようとする課題】本発明は超急冷法で製
迄された、Ｒ．Ｆｅ．Ｂ粉末と結合材である有機物樹脂
（熱可塑性、熱硬化性樹脂のいずれかを用いる）からな
るボンド磁石である。SUMMARY OF THE INVENTION The present invention has been made by R.K. Fe. It is a bond magnet made of B powder and an organic resin (using either thermoplastic or thermosetting resin) as a binder.
【０００４】従未は、超急冷法の例えばＮｄＦｅＢ、Ｐ
ｒＦｅ、ＹＦｅ、ＮｄＤｙＦｅＢ等の組成物の磁石物性
に関する研究例が主体的であった。Conventionally, for example, NdFeB, P of the ultra-quenching method is used.
The main examples of research were on the physical properties of magnets of compositions such as rFe, YFe, and NdDyFeB.
【０００５】また実用材料としてとらえれば基本組成が
鉄なので、大変酸化（錆）しやすい問題があった。Further, since it has a basic composition of iron when it is regarded as a practical material, there is a problem that it is easily oxidized (rusted).
【０００６】また、実用永久磁石としてみれば、形状の
つくりやすさ、精度、量産性、磁石性など所望の特性が
得られていない。[0006] Further, as a practical permanent magnet, desired characteristics such as easiness of forming a shape, accuracy, mass productivity, and magnetism have not been obtained.
【０００７】本発明は前記問題を解決するもので、等方
性の高性能磁石を提供することを目的とする。The present invention solves the above problems, and an object thereof is to provide a high-performance isotropic magnet.
【０００８】[0008]
【課題を解決するための手段】本発明における組成物
は、Ｒ．Ｆｅ．Ｂで超急冷法でつくられた微結晶からな
る粉末を用いる。その粉未の大きさは１７０μｍ以下こ
のましくは５０μｍから３μｍの範囲である。微粉末化
は、へキサン、トルエンなどの有機溶剤を加えたボール
ミル又はアトライターミルなどで行う。The composition according to the present invention comprises: Fe. A powder consisting of crystallites prepared by the ultraquenching method in B is used. The size of the powder is 170 μm or less, preferably 50 μm to 3 μm. The fine powder is formed by a ball mill or an attritor mill to which an organic solvent such as hexane or toluene is added.
【０００９】バインダーの有機物樹脂は、熱可塑性樹
脂、熱硬化性樹脂いずれかを選択すれば良い。As the organic resin for the binder, either a thermoplastic resin or a thermosetting resin may be selected.
【００１０】熱可塑性樹脂は、ナイロン６、６６、１２
など、ＰＰ（ポリプロピレン）、ＥＶＡ、ＰＰＳ、ＰＥ
ＥＫ等を磁石粉末と共に混練機などを用いて混練物（コ
ンパウンド）をつくる。その量は、成形方式にもよる
が、１５重量％以下である。好ましくは１０％〜５％の
範囲である。一方熱硬化性樹脂は、エポキシ、ポリエス
テル、フェノール、ケイ素等の有機物樹脂が適応され
る。その配合量は最大１５％であり、成形方法によって
好ましい範囲が選定される。The thermoplastic resin is nylon 6, 66, 12
Etc., PP (polypropylene), EVA, PPS, PE
A kneaded material (compound) is prepared by using EK and the like together with magnet powder by using a kneading machine or the like. The amount is 15% by weight or less, depending on the molding method. It is preferably in the range of 10% to 5%. On the other hand, as the thermosetting resin, organic resins such as epoxy, polyester, phenol and silicon are applicable. The blending amount is up to 15%, and a preferable range is selected depending on the molding method.
【００１１】本発明法では、金型を用いる加圧成形法で
は、圧縮圧力が１〜７トン／ｃｍ2と比較的高圧にし
て、高密度化すなわち高性能化を目的とするので樹脂量
は、０．５〜５％が適用される。また、射出成形、押出
成形カレンダーロール成形などは、混合物の流動性が重
要になるので、樹脂は５〜１５％と多くする。In the method of the present invention, in the pressure molding method using a die, the compression pressure is set to a relatively high pressure of 1 to 7 ton / cm 2 for the purpose of achieving high density, that is, high performance. , 0.5-5% is applied. Further, in injection molding, extrusion molding calender roll molding and the like, since the fluidity of the mixture is important, the resin content is increased to 5 to 15%.
【００１２】[0012]
【発明の実施の形態】以下に本発明の効果を具体的に実
施例に従って詳述する。BEST MODE FOR CARRYING OUT THE INVENTION The effects of the present invention will be described in detail below with reference to specific examples.
【００１３】（実施例一１）Ｎｄ２９．８％Ｂ０．８％
残部Ｆｅおよび不可避の不純物からなる組成合金を高周
波溶解炉で溶解、水冷銅ロール上に吐出し超急冷法によ
ってリボン状薄帯粉末を得た。その、大きさは１０〜３
０μｍであった。次に素原料は、以下の手順で実用永久
磁石材料とした。Example 1 Nd 29.8% B 0.8%
A composition alloy consisting of the balance Fe and inevitable impurities was melted in a high-frequency melting furnace, discharged onto a water-cooled copper roll, and a ribbon-shaped ribbon powder was obtained by a super-quenching method. The size is 10-3
It was 0 μm. Next, the raw material was made into a practical permanent magnet material by the following procedure.
【００１４】 粉末粒度１７７μｍ以下に粉砕した。
もちろん、Ａｒガス零囲気下で、ボールミル中で行っ
た。The powder was pulverized to a particle size of 177 μm or less.
Of course, it was performed in a ball mill under an atmosphere of zero Ar gas.
【００１５】 有機溶媒のダイフロン１１３（ダイキ
ン工業製）を加えアトライターミル中で約１０分間粉砕
した。粉末の量は、１０ｋｇ、ダイフロン１１３５ｋ
ｇ、ス一チールボール２０ｋｇの量を容器内に投入して
行った。An organic solvent, Daiflon 113 (manufactured by Daikin Industries, Ltd.) was added and the mixture was pulverized in an attritor mill for about 10 minutes. The amount of powder is 10 kg, Daiflon 1135k
g and 20 kg of steel balls were put into the container.
【００１６】 ＦＳＳＳ、（フィフシャーサブシーブ
サイザー）法による平均粒度を測定した。The average particle size was measured by the FSSS (Fifthier Subsieve Sizer) method.
【００１７】 バインダー（結合材）にエポキシ樹
脂、フェノール樹脂の熱硬化性樹脂を遅定、表１に示す
磁石粉末との混合比率のサンプルについて、自動混練機
にて行った。A thermosetting resin such as an epoxy resin or a phenol resin was delayed as a binder (binding material), and a sample having a mixing ratio with the magnetic powder shown in Table 1 was subjected to an automatic kneading machine.
【００１８】 金型はφ１２×１０ｌｍｍ円柱状試料
とした。The mold was a cylindrical sample of φ12 × 10 lmm.
【００１９】成形圧力は表１に示す条件で行った。この
時のプレスは、一軸油圧プレスで、ダイフローティング
方式によるもので成形した。The molding pressure was set under the conditions shown in Table 1. The press at this time was a uniaxial hydraulic press and was formed by a die floating method.
【００２０】 次に成形体は、加熱焼成固化させた
が、温度は、１００〜１８０℃×１時間、Ｎ2ガス中で
行った。Next, the molded body was heated and solidified by heating, and the temperature was 100 to 180 ° C. for 1 hour in N 2 gas.
【００２１】 ＪＩＳ、Ｃ２５０１に準拠した自動自
記磁束計で、有効磁場２５ｋＯｅを加え磁気性能を測定
した。The magnetic performance was measured by applying an effective magnetic field of 25 kOe with an automatic self-recording magnetometer based on JIS, C2501.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【表２】 [Table 2]
【００２４】ここで比較例は、Ｓｍ（Ｃｏｂａｌ Ｃｕ
０．０７ Ｆｅ０．２ Ｚｒ ０．０２）８．０組成か
らなる２−１７系希土類金属間化合物磁石粉末である。
本実施例は圧縮成形法で等方性磁石をつくった例である
が、比較例に比べ高性能磁石を得られた。等方性磁石で
これだけ高性能の希土類樹脂結合磁石は知られていな
い。Here, the comparative example is Sm (Cobal Cu
It is a 2-17 series rare earth intermetallic compound magnet powder having a composition of 0.07 Fe0.2 Zr 0.02) 8.0.
This example is an example of producing an isotropic magnet by the compression molding method, but a high performance magnet was obtained as compared with the comparative example. Rare earth resin-bonded magnets that are isotropic magnets and have such high performance are not known.
【００２５】これだけ磁気性能が高い等方性磁石は、多
極着磁によって、高い磁束密度を得ることができ、スピ
ーカ、モータの高性能化に極めて有効となる。The isotropic magnet having such a high magnetic performance can obtain a high magnetic flux density by the multi-pole magnetization, and is extremely effective for improving the performance of the speaker and the motor.
【００２６】（実施例−２）実施例１と同一組成のＮｄ
ＦｅＢ磁石粉未を用いて、射出成形によって永久磁石を
つくった。試料．形状は、φ８０×φ２５×６ｍｍのリ
ング状である。表３に製造条件と諸特性を示す。(Example-2) Nd having the same composition as in Example-1
A permanent magnet was produced by injection molding using FeB magnet powder. sample. The shape is a ring shape of φ80 × φ25 × 6 mm. Table 3 shows manufacturing conditions and various characteristics.
【００２７】バインダーは、ナイロン１２を使用し磁石
粉末との混練は、２８０℃に加熱しながらスクリュー式
混練機でコンパウンドをつくった。Nylon 12 was used as a binder, and kneading with magnet powder was carried out by heating at 280 ° C. to form a compound with a screw type kneader.
【００２８】なお比較例の２−１７系Ｓｍ（Ｃｏ Ｃｕ
Ｆｅ Ｚｒ）合金粉末は実施例１と同様のものを使用
した。The 2-17 type Sm (Co Cu
The Fe Zr) alloy powder used was the same as in Example 1.
【００２９】比較例と本発明法により得られた射出成形
法での比較でもやはり高い性能が得られた。High performance was also obtained in the comparison between the comparative example and the injection molding method obtained by the method of the present invention.
【００３０】[0030]
【表３】 [Table 3]
【００３１】このことは、Ｎｄ Ｆｅ Ｂ粉未の高い磁
気性能がそのまま、現出させることができた。This means that the high magnetic performance of the NdFeB powder, which has not been achieved, can be realized as it is.
【００３２】このようにリング状の磁石でも、（ＢＨ）
ｍａｘ４〜６ＭＧＯｅ級の等方性磁石を得られた。この
ように、精密複雑形状の等方性磁石め登場は、モータ、
スピーカなどの小型、高性能化に有効となるであろう。Even with a ring-shaped magnet as described above, (BH)
An isotropic magnet of max 4-6 MGOe grade was obtained. In this way, the appearance of isotropic magnets with precision complicated shapes
It will be effective for miniaturization and high performance of speakers.
【００３３】本実施例は、ナイロン１２を用いたが、熱
可塑性の樹脂であれば、ＰＰＳ，ＰＥＥＫ，ＰＰなど同
様の効果を得られるものである。In this embodiment, nylon 12 is used, but if it is a thermoplastic resin, similar effects such as PPS, PEEK and PP can be obtained.
【００３４】[0034]
【発明の効果】以上述べたように本発明によれば、基本
組成が希土類金属、鉄、ボロンからなる超急冷法でつく
られた、磁石粉末と有機物樹脂からボンド型磁石は、従
未の希土類コバルト磁石に比べ高い磁気性能を有する等
方性磁石を得られた。これを用いた機器は、例えばモー
タの高出力化、小型化、ロッドレスシリンダー、スピー
カ等へ低コスト、高性能を実現できるなど多大の効果を
もたらす実用性の高い材料である。As described above, according to the present invention, a bond-type magnet made of a magnet powder and an organic resin, which has a basic composition made of a rare earth metal, iron, and boron by a superquenching method, is a rare earth metal which has not been used yet. An isotropic magnet having higher magnetic performance than the cobalt magnet was obtained. A device using this is a highly practical material that brings great effects such as high output of a motor, miniaturization, low cost and high performance for a rodless cylinder, a speaker and the like.
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成７年１１月１日[Submission date] November 1, 1995
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Name of item to be amended] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００２[Name of item to be corrected] 0002
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００２】[0002]
【従来の技術】希土類金属、鉄、ボロンからなる希土類
金属間化合物の磁石化の試みは、例えばクーン等は（Ｆ
ｅ．８２．Ｂ．１８）．９Ｒｂ．０５Ｄａ．０５の超急
冷法リボンをアニールするとｉＨｃ＝９ｋＯｅ、Ｂｒ＝
５ｋＧ、但し（ＢＨ）ｍａｘが低い。（Ｎ．Ｃ．Ｋｏｏ
ｎ他Ａｐｐｌ．Ｐｈｙｓ．Ｌｅｔｔ．３９（１０），８
４０−８４２（１９８１））希土類・鉄・ボロン系超急
冷アモルファスリボンは粉末状でその諸特性を測定する
ことによって磁石化の可能性を論じている。実用材料と
しての評価は見当たらない。2. Description of the Related Art Attempts to magnetize rare earth intermetallic compounds composed of rare earth metals, iron, and boron have been reported in, for example, Kuhn et al.
e. 82. B. 18). 9Rb. 05 Da. When the 05 quenching ribbon is annealed, iHc = 9 kOe, Br =
5kG, but (BH) max is low. (NC Koo
n et al . Appl. Phys. Lett. 39 (10), 8
40-842 (1981) ) The rare-earth / iron / boron-based ultra-quenched amorphous ribbon is in powder form and the possibility of magnetization is discussed by measuring its properties. No evaluation as a practical material is found.
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００８[Correction target item name] 0008
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００８】[0008]
【課題を解決するための手段】本発明は、希土類元素、
鉄、ボロンを主成分とし超急冷法で製造された磁石粉末
と、樹脂結合材とからなり、前記磁石粉末と前記樹脂結
合材とを無磁場中で圧縮成形して磁気的に等方化してな
る樹脂結合型希土類磁石において、前記磁石粉末の含有
量が９５〜９９．５wt％であり、前記樹脂結合材は、熱
硬化性樹脂で構成され、その含有量が０．５〜５wt％で
あり、磁気エネルギー積（ＢＨ）maxが６．２ＭＧＯｅ
以上であることを特徴とする。また、前記磁石粉末の粒
径は、３〜５０μｍであることを特徴とする。本発明に
おける組成物は、Ｒ．Ｆｅ．Ｂで超急冷法でつくられた
微結晶からなる粉末を用いる。その粉未の大きさは１７
０μｍ以下このましくは５０μｍから３μｍの範囲であ
る。微粉末化は、へキサン、トルエンなどの有機溶剤を
加えたボールミル又はアトライターミルなどで行う。The present invention is directed to a rare earth element,
Magnet powder mainly composed of iron and boron and manufactured by the ultra-quenching method
And a resin binder, the magnet powder and the resin binder.
Do not compress the composite material in a magnetic field to make it magnetically isotropic.
Resin-bonded rare earth magnets containing the above-mentioned magnet powder
The amount of the resin binder is 95-99.5 wt%,
It is composed of curable resin and its content is 0.5-5wt%.
Yes, the magnetic energy product (BH) max is 6.2 MGOe
The above is characterized. Also, the particles of the magnet powder
The diameter is 3 to 50 μm. The composition of the present invention has a composition of R. Fe. A powder consisting of crystallites prepared by the ultraquenching method in B is used. The size of the powder is 17
0 μm or less This is preferably in the range of 50 μm to 3 μm. The fine powder is formed by a ball mill or an attritor mill to which an organic solvent such as hexane or toluene is added.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】削除[Correction method] Delete
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１０】熱硬化性樹脂は、エポキシ、ポリエステ
ル、フェノール、ケイ素等の有機物樹脂が適応される。
その配合量は最大１５％であり、成形方法によって好ま
しい範囲が選定される。[0010] Thermosetting resins, epoxy, polyester, phenolic, organic resins such as silicon is adapted.
The blending amount is up to 15%, and a preferable range is selected depending on the molding method.
【手続補正６】[Procedure correction 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１１[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１１】本発明法では、金型を用いる加圧成形法で
は、圧縮圧力が１〜７トン／ｃｍ2と比較的高圧にし
て、高密度化すなわち高性能化を目的とするので樹脂量
は、０．５〜５％が適用される。 In the method of the present invention, in the pressure molding method using a die, the compression pressure is set to a relatively high pressure of 1 to 7 ton / cm 2 for the purpose of achieving high density, that is, high performance. , 0.5-5% is applied .
【手続補正７】[Procedure Amendment 7]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１７[Correction target item name] 0017
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１７】 バインダー（結合材）にエポキシ樹
脂、フェノール樹脂の熱硬化性樹脂を選定、表１に示す
磁石粉末との混合比率のサンプルについて、自動混練機
にて行った。The binder (binder) in an epoxy resin, a thermosetting resin selected constant of the phenolic resin, the samples of the mixing ratio of the magnet powder shown in Table 1, was carried out in an automatic kneader.
【手続補正８】[Procedure Amendment 8]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２６[Correction target item name] 0026
【補正方法】削除[Correction method] Delete
【手続補正９】[Procedure Amendment 9]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２７[Name of item to be corrected] 0027
【補正方法】削除[Correction method] Delete
【手続補正１０】[Procedure Amendment 10]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２８[Correction target item name] 0028
【補正方法】削除[Correction method] Delete
【手続補正１１】[Procedure Amendment 11]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００２９[Name of item to be corrected] 0029
【補正方法】削除[Correction method] Delete
【手続補正１２】[Procedure Amendment 12]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３０[Name of item to be corrected] 0030
【補正方法】削除[Correction method] Delete
【手続補正１３】[Procedure Amendment 13]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３１[Correction target item name] 0031
【補正方法】削除[Correction method] Delete
【手続補正１４】[Procedure Amendment 14]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３２[Name of item to be corrected] 0032
【補正方法】削除[Correction method] Delete
【手続補正１５】[Procedure Amendment 15]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３３[Correction target item name] 0033
【補正方法】削除[Correction method] Delete
【手続補正１６】[Procedure Amendment 16]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００３４[Correction target item name] 0034
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００３４】[0034]
【発明の効果】以上述べたように本発明によれば、基本
組成が希土類金属、鉄、ボロンからなる超急冷法でつく
られた、磁石粉末と有機物樹脂からボンド型磁石は、従
来の希土類コバルト磁石に比べ高い磁気性能を有する等
方性磁石を得られた。これを用いた機器は、例えばモー
タの高出力化、小型化、ロッドレスシリンダー、スピー
カ等へ低コスト、高性能を実現できるなど多大の効果を
もたらす実用性の高い材料である。As described above, according to the present invention, a bond-type magnet made of a magnet powder and an organic resin, which has a basic composition of a rare earth metal, iron, and boron by an ultraquenching method, is
The resulting isotropic magnet with high magnetic performance compared to come of the rare earth cobalt magnets. A device using this is a highly practical material that brings great effects such as high output of a motor, miniaturization, low cost and high performance for a rodless cylinder, a speaker and the like.
Claims (1)
冷法で製造された磁石粉末と、樹脂結合材とからなり、
前記磁石粉末と前記樹脂結合材との混合物を無磁場中で
圧縮成形して磁気的に等方化してなる樹脂結合型希土類
磁石であって、 前記磁石粉末の粒径が３〜５０μｍ、前記磁石粉末の含
有量が９５〜９９．５wt％であり、 前記樹脂結合材は、熱硬化性樹脂で構成され、その含有
量が０．５〜５wt％であり、 磁気エネルギー積（ＢＨ）maxが６．２ＭＧＯｅ以上で
あることを特徴とする希土類磁石。1. A magnet powder containing a rare earth element, iron, and boron as main components, which is manufactured by a superquenching method, and a resin binder,
A resin-bonded rare-earth magnet obtained by compression-molding a mixture of the magnet powder and the resin binder in a magnetic field and magnetically isotropic, wherein the particle size of the magnet powder is 3 to 50 μm. The powder content is 95-99.5 wt%, the resin binder is composed of a thermosetting resin, the content is 0.5-5 wt%, and the magnetic energy product (BH) max is 6 A rare earth magnet characterized in that it is 2 MGOe or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7255320A JPH08181011A (en) | 1995-10-02 | 1995-10-02 | Rare earth magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7255320A JPH08181011A (en) | 1995-10-02 | 1995-10-02 | Rare earth magnet |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62261208A Division JP2619653B2 (en) | 1987-10-16 | 1987-10-16 | Rare earth magnet |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16742098A Division JP3391704B2 (en) | 1998-06-15 | 1998-06-15 | Rare earth magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08181011A true JPH08181011A (en) | 1996-07-12 |
Family
ID=17277151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7255320A Pending JPH08181011A (en) | 1995-10-02 | 1995-10-02 | Rare earth magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08181011A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59211549A (en) * | 1983-05-09 | 1984-11-30 | ゼネラル・モ−タ−ズ・コ−ポレ−シヨン | Adhered rare earth element-iron magnet |
| JPS60207302A (en) * | 1984-03-08 | 1985-10-18 | ゼネラル モーターズ コーポレーシヨン | Rare earth element-iron magnet coupled with epoxy resin |
| JPS62263612A (en) * | 1986-05-12 | 1987-11-16 | Matsushita Electric Ind Co Ltd | Resin magnet |
-
1995
- 1995-10-02 JP JP7255320A patent/JPH08181011A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59211549A (en) * | 1983-05-09 | 1984-11-30 | ゼネラル・モ−タ−ズ・コ−ポレ−シヨン | Adhered rare earth element-iron magnet |
| JPS60207302A (en) * | 1984-03-08 | 1985-10-18 | ゼネラル モーターズ コーポレーシヨン | Rare earth element-iron magnet coupled with epoxy resin |
| JPS62263612A (en) * | 1986-05-12 | 1987-11-16 | Matsushita Electric Ind Co Ltd | Resin magnet |
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