JPS63110604A - Quenched thin strip magnet - Google Patents
Quenched thin strip magnetInfo
- Publication number
- JPS63110604A JPS63110604A JP61254670A JP25467086A JPS63110604A JP S63110604 A JPS63110604 A JP S63110604A JP 61254670 A JP61254670 A JP 61254670A JP 25467086 A JP25467086 A JP 25467086A JP S63110604 A JPS63110604 A JP S63110604A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- praseodymium
- cerium
- earth element
- thin strip
- 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.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 18
- 229910052796 boron Inorganic materials 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000956 alloy Substances 0.000 abstract description 15
- 229910052684 Cerium Inorganic materials 0.000 abstract description 14
- 229910052777 Praseodymium Inorganic materials 0.000 abstract description 14
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 abstract description 12
- 229910045601 alloy Inorganic materials 0.000 abstract description 11
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 abstract description 11
- 230000005291 magnetic effect Effects 0.000 abstract description 8
- 230000005415 magnetization Effects 0.000 abstract description 7
- 239000000203 mixture Substances 0.000 abstract description 6
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract description 5
- 229910052779 Neodymium Inorganic materials 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000002910 rare earth metals Chemical class 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- -1 10-20% by weight Chemical compound 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000722 Didymium Inorganic materials 0.000 description 2
- 241000224487 Didymium Species 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910017495 Nd—F Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 description 1
- 229910003447 praseodymium oxide Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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
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
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は急冷薄帯磁石に関する。更に詳細には、本発明
はセリウムを添加した希土類元素−鉄一ホウ素系の急冷
薄帯磁石に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a quenched ribbon magnet. More specifically, the present invention relates to a rare earth element-iron-boron quenched ribbon magnet doped with cerium.
〈従来の技術〉
従来より希土類元素−鉄一ホウ素系永久磁石合金として
Ｎｄ−Ｆｅ−Ｂ系焼結磁石が公知であり、この合金材料
はＳ ｍ −Ｃｏ系永久磁石合金に比較して原料が入手
しやすく、比較的安価で且つ高性能であることから特に
注目を集めている。また、ジジム系希土類元素を含有す
る鉄−ホウ素系焼結磁石も公知である。更に、Ｎｄ−Ｆ
ｅ−Ｂ系の薄帯磁石も公知である。<Prior art> Nd-Fe-B based sintered magnets have been known as rare earth element-iron-boron based permanent magnet alloys, and this alloy material requires less raw material than S m -Co based permanent magnet alloys. It is attracting particular attention because it is easily available, relatively inexpensive, and has high performance. Further, iron-boron sintered magnets containing didymium rare earth elements are also known. Furthermore, Nd-F
E-B type ribbon magnets are also known.
〈発明が解決しようとする問題点〉
しかしながら、近年の電気電子機器の小型化、高効率化
の要求を満たすには更に安価で高磁気特性を有する永久
磁石が要望される。<Problems to be Solved by the Invention> However, in order to meet the recent demands for smaller size and higher efficiency of electrical and electronic equipment, permanent magnets that are cheaper and have higher magnetic properties are required.
〈発明の目的〉
従って、本発明の目的は、Ｎｄ−Ｆｅ−Ｂ系焼結体永久
磁石合金より更に安価で高磁気特性を有する急冷薄帯磁
石を提供することを目的とする。<Objective of the Invention> Accordingly, an object of the present invention is to provide a quenched ribbon magnet that is cheaper than a Nd-Fe-B based sintered permanent magnet alloy and has high magnetic properties.
〈発明の構成〉
本発明によれば、 一般式：
％式％
（式中、ＲはＰｒ１〜３９重量％、Ｎｄ６０〜９８重量
％及びＣｅｌ〜１０重量％からなる希土類元素であり、
Ｆｅは鉄並びにＢはホウ素を表わし、Ｒ，Ｆｅ、Ｂの量
比は各々Ｘが３３〜３５重量％、Ｙが６０〜６６重量％
並びに２が０．８〜１．２重量％を示す）で表示される
組成を有する急冷薄帯磁石が提供される。<Structure of the invention> According to the present invention, the general formula: % formula % (wherein R is a rare earth element consisting of Pr 1 to 39% by weight, Nd 60 to 98% by weight and Cel to 10% by weight,
Fe represents iron and B represents boron, and the quantitative ratio of R, Fe, and B is 33 to 35% by weight for X and 60 to 66% by weight for Y, respectively.
and 2 represents 0.8 to 1.2% by weight).
〈発明の説明〉 以下１本発明を更に詳細に説明する。<Description of the invention> The present invention will be explained in more detail below.
本発明の急冷薄帯磁石材料として使用する希土類元素は
プラセオジム（Ｐｒ）１〜３９重量％、セリウム（Ｃｅ
）１〜１０重量％、ネオジム（Ｎｄ）６０〜９８重量％
からなる希土類元素を用いる（工業上不可避な不純物を
含有するものも使用できる）。The rare earth elements used as the quenched ribbon magnet material of the present invention are praseodymium (Pr) 1 to 39% by weight, cerium (Ce
) 1 to 10% by weight, neodymium (Nd) 60 to 98% by weight
(Those containing industrially unavoidable impurities can also be used.)
本発明では天然に存在する希土類元素より、軽希土骨の
セリウム（Ｃｅ）、ランタン（Ｌａ）等及び重希土分の
サマリウム（Ｓｍ）、ユーロピウム（Ｅｕ）、ガドリニ
ウム（Ｇｄ）、イツトリウム（Ｙ）等を各方面の用途に
応じて分離した後に副生する、酸化ネオジム７５〜８５
重量％、酸化プラセオジム１０〜２０重量％、酸化セリ
ウム１〜１５重量％からなる混合物（ジジム化合物）を
利用して酸化物溶融塩電解法により希土類元素金属混合
物を得ることができるので、ネオジムを単体として含む
従来のＮｄ−Ｆｅ−Ｂ系永久磁石合金材料に比して大幅
に安価であり、工業的規模での生産が可能である。もち
ろん、別個に調製されたネオジム、プラセオジム、セリ
ウム金属を溶融炉にて合金化して用いることもできる。In the present invention, from naturally occurring rare earth elements, light rare earth elements such as cerium (Ce) and lanthanum (La), and heavy rare earth elements such as samarium (Sm), europium (Eu), gadolinium (Gd), and yttrium (Y) are used. ) Neodymium oxide 75 to 85, which is a by-product after separating products according to various uses.
A rare earth metal mixture can be obtained by oxide molten salt electrolysis using a mixture (didymium compound) consisting of praseodymium oxide, 10-20% by weight, and cerium oxide, 1-15% by weight. It is significantly cheaper than conventional Nd-Fe-B permanent magnet alloy materials, and can be produced on an industrial scale. Of course, separately prepared neodymium, praseodymium, and cerium metals can be alloyed in a melting furnace and used.
本発明の急冷薄帯磁石では希土類元素としてネオジム単
体を用いずにプラセオジム１〜３９重量％、セリウム１
〜１０重量％を更に加え三元系希土類元素として用いる
点に大きな特徴を有する。In the quenched ribbon magnet of the present invention, 1 to 39% by weight of praseodymium, 1 to 39% by weight of praseodymium, 1 to 3% by weight of cerium, and 1 to 39 wt.
It has a major feature in that it is used as a ternary rare earth element by further adding ~10% by weight.
Ｃｅ−ＦｅＢ系合金材料はＮｄ−Ｆｅ−Ｂ系合金材料に
比して飽和磁化Ｉｓが前者の場合１．１６テスラ（Ｔ）
、後者の場合１．５７テスラ（Ｔ）、また異方性磁場Ｈ
ａが前者では３．７ＭＡ／ｍ、後者では１２ Ｍ Ａ
／ ｍと極端に差があるため、セリウムを永久磁石材料
中に含ませると飽和磁化、保磁力が低くなり、高磁気特
性が得られないと推測されていた。故に、磁石材料中に
はセリウムをできる限り除去することが常識とされてい
た。しかしながら、驚くべきことに特許請求の範囲に記
載する特定範囲の量のセリウムを、特定範囲の量のプラ
セオジムと併用することにより、ネオジム単体を用いる
場合よりも保磁力が大きく、従って最大エネルギー積が
大きい永久磁石が得られる。Ce-FeB alloy material has a saturation magnetization Is of 1.16 Tesla (T) compared to Nd-Fe-B alloy material.
, in the latter case 1.57 Tesla (T), and the anisotropic magnetic field H
a is 3.7 MA/m in the former case and 12 MA/m in the latter case.
/m, it was assumed that if cerium was included in the permanent magnet material, the saturation magnetization and coercive force would be lowered, making it impossible to obtain high magnetic properties. Therefore, it has been common knowledge to remove as much cerium as possible from magnet materials. Surprisingly, however, the use of cerium in the specified range of amounts described in the claims in combination with praseodymium in the specified ranges results in a greater coercive force than when neodymium alone is used, and therefore a maximum energy product. A large permanent magnet can be obtained.
セリウムが１重量％未満、プラセオジムが１重量％未満
となると薄帯の製造が困難となり、また一方セリウムが
１０重量％、プラセオジムが３９重量％を越えると、飽
和磁化Ｉｓが低くなり、使用できない。If cerium is less than 1% by weight and praseodymium is less than 1% by weight, it will be difficult to manufacture a ribbon. On the other hand, if cerium is more than 10% by weight and praseodymium is more than 39% by weight, the saturation magnetization Is becomes low and it cannot be used.
本発明に用いるホウ素としては純ボロン、フェロボロン
等を用いることができ、不純物としてケイ素、アルミニ
ウム、炭素等を含んでいてもよい。As the boron used in the present invention, pure boron, ferroboron, etc. can be used, and silicon, aluminum, carbon, etc. may be included as impurities.
また鉄としては電解鉄、純鉄、低炭素軟鉄等を用いるこ
とができる。Further, as the iron, electrolytic iron, pure iron, low carbon soft iron, etc. can be used.
本発明では上述の希土類元素３３〜３５重量％。In the present invention, 33 to 35% by weight of the above-mentioned rare earth elements.
鉄６０〜６６重量％及びホウ素０．８〜１．２重量％の
範囲の組成とする。希土類元素が３３重量％未満では保
磁力が低下し、一方３５重量％を越えると強磁性相の量
が減少し、飽和磁化Ｉｓが低下する。また、ホウ素が０
．８重量％未満では安定な強磁性相が得られない。また
、ホウ素量の増加に伴い飽和磁化Ｉｓが低下し、１．２
重量％以上では高特性が得られない。The composition ranges from 60 to 66% by weight of iron and 0.8 to 1.2% by weight of boron. When the rare earth element content is less than 33% by weight, the coercive force decreases, while when it exceeds 35% by weight, the amount of ferromagnetic phase decreases and the saturation magnetization Is decreases. Also, boron is 0
．． If it is less than 8% by weight, a stable ferromagnetic phase cannot be obtained. In addition, as the amount of boron increases, the saturation magnetization Is decreases to 1.2
If the amount is more than % by weight, high properties cannot be obtained.
本発明の急冷薄帯磁石を製造するにあたっては、まず原
料金属を１５００℃程度にて溶解し、鋳造して合金イン
ゴットを調製する。この希土類合金インゴットを次いで
１５５０℃〜１５６０℃程度の温度範囲で不活性ガス、
例えば高純度のアルゴン、ヘリウム、等の雰囲気中で融
解し、融解物を単ロール上に射出し、ロール周速度７．
９〜１９．６ ｍ７秒、好ましくは７．９〜１５．７ｍ
／秒にて急冷して急冷薄帯磁石を作製できる。In manufacturing the quenched ribbon magnet of the present invention, first, raw metal is melted at about 1500° C. and cast to prepare an alloy ingot. This rare earth alloy ingot is then heated with an inert gas in a temperature range of about 1550°C to 1560°C.
For example, it is melted in an atmosphere of high-purity argon, helium, etc., and the melt is injected onto a single roll at a peripheral speed of 7.
9-19.6 m7 seconds, preferably 7.9-15.7 m
A quenched thin ribbon magnet can be produced by quenching at a rate of 1/2 seconds.
〈発明の効果〉
本発明の急冷薄帯磁石は高い保磁力特性を示し、かつ耐
食性も極めて良好である。また、本発明の薄帯磁石の製
造は非常に実施が容易であり、かつコストも安価である
。従って、本発明の方法により製造した急冷薄帯磁石は
工業製品として有用性が高く、例えばボンド磁石、セン
サー等の材料として有用である。<Effects of the Invention> The quenched ribbon magnet of the present invention exhibits high coercive force characteristics and has extremely good corrosion resistance. Furthermore, manufacturing the ribbon magnet of the present invention is very easy to implement and is inexpensive. Therefore, the quenched ribbon magnet produced by the method of the present invention is highly useful as an industrial product, for example, as a material for bonded magnets, sensors, etc.
〈実施例〉 以下、本発明を実施例につき説明する。<Example> Hereinafter, the present invention will be explained with reference to examples.
実施例１
酸化物溶融塩電解法にてジジム化合物より希土類元素合
金（Ｎｄ ８０ｗｔ％、Ｐｒ１５ｗｔ％。Example 1 A rare earth element alloy (Nd 80 wt%, Pr 15 wt%.
Ｃｅ５ｗｔ％）５００ｇを製造し、Ｆｅとして電解鉄９
５５．３ ｇ 、 Ｂ １４，７ ｇと共にアルミナル
ツボに入れ、ｌ０ＫＶＡの高周波真空溶解炉中にてアル
ゴン気中１５５０℃にて溶解して合金インゴットを製造
した。この合金インゴットの主組成は３４重量％Ｒ−６
５重量％Ｆａ−１重量％Ｂである。Produce 500g of Ce5wt%) and use electrolytic iron9 as Fe.
55.3 g of B and 14.7 g of B were placed in an alumina crucible and melted at 1550° C. in an argon atmosphere in a 10 KVA high frequency vacuum melting furnace to produce an alloy ingot. The main composition of this alloy ingot is 34% by weight R-6
5% by weight Fa-1% by weight B.
次いで、合金インゴットを温度１５５０℃にて高周波炉
中で溶融し、高純度アルゴンガス雰囲気中でロール周速
度を３．９ｍ ／秒、７．９ｍ／秒、１１．８ｍ／秒、
１５．８ｍ／秒、１９．６ｍ ／秒、２３．６ｍ／秒、
及び３１．４ｍ／秒として、片ロール液体急冷法により
急冷し、急冷薄帯磁石を各々製造”した。Next, the alloy ingot was melted in a high-frequency furnace at a temperature of 1550°C, and the roll circumferential speed was set to 3.9 m/sec, 7.9 m/sec, 11.8 m/sec, and in a high-purity argon gas atmosphere.
15.8m/sec, 19.6m/sec, 23.6m/sec,
and 31.4 m/sec by a single roll liquid quenching method to produce quenched ribbon magnets.
製造した薄帯磁石の磁石特性はパルス着磁後、東英工業
社製振動試料型磁力計（Ｖ、Ｓ、Ｍ、）を用いて薄帯の
まま測定した。The magnetic properties of the manufactured thin ribbon magnets were measured as they were after pulse magnetization using a vibrating sample magnetometer (V, S, M, manufactured by Toei Kogyo Co., Ltd.).
これらの結果を以下の第１表に示す。These results are shown in Table 1 below.
第１表
米国、リサーチ・ケミカル社製のＮｄメタル（純度９９
．９％）、Ｐｒメタル（純度９９％）、Ｃｅメタル（純
度９９．９％）を使用した以外は実施例１と同様の方法
により同様の組成の合金インゴットを作成し、ロール周
速度を１１．８ ｍ／秒として本発明の急冷薄帯磁石を
製造し、その磁気特性を測定した。その結果を第２表に
記載する。Table 1: Nd metal manufactured by Research Chemical Co., USA (purity 99)
．． An alloy ingot with the same composition as in Example 1 was prepared by the same method as in Example 1 except that Pr metal (purity 99%) and Ce metal (purity 99.9%) were used, and the roll peripheral speed was set to 11.9%). A quenched ribbon magnet of the present invention was manufactured at a speed of 8 m/sec, and its magnetic properties were measured. The results are listed in Table 2.
ル狡鮭
Ｃｅメタルを使用しなかった以外は、実施例２と同様の
方法により急冷薄帯磁石を製造し、その磁性特性を測定
した。その結果を第２表に記載する。A quenched ribbon magnet was produced in the same manner as in Example 2, except that Ce metal was not used, and its magnetic properties were measured. The results are listed in Table 2.
Claims (1)
％及びＣｅ１〜１０重量％からなる希土類元素であり、
Ｆｅは鉄並びにＢはホウ素を表わし、Ｒ、Ｆｅ、Ｂの量
比は各々Ｘが３３〜３５重量％、Ｙが６０〜６６重量％
並びにＺが０．８〜１．２重量％を示す）で表示される
組成を有する急冷薄帯磁石。[Claims] General formula: R_XFe_YB_Z (wherein, R is a rare earth element consisting of 1 to 39% by weight of Pr, 60 to 98% by weight of Nd, and 1 to 10% by weight of Ce,
Fe represents iron and B represents boron, and the quantitative ratio of R, Fe, and B is 33 to 35% by weight for X and 60 to 66% by weight for Y, respectively.
and Z represents 0.8 to 1.2% by weight).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254670A JPS63110604A (en) | 1986-10-28 | 1986-10-28 | Quenched thin strip magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254670A JPS63110604A (en) | 1986-10-28 | 1986-10-28 | Quenched thin strip magnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63110604A true JPS63110604A (en) | 1988-05-16 |
| JPH0531803B2 JPH0531803B2 (en) | 1993-05-13 |
Family
ID=17268229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61254670A Granted JPS63110604A (en) | 1986-10-28 | 1986-10-28 | Quenched thin strip magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63110604A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544569A (en) * | 2019-08-24 | 2019-12-06 | 宁波合力磁材技术有限公司 | neodymium-iron-boron magnet and production process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609852A (en) * | 1983-06-24 | 1985-01-18 | ゼネラル・モ−タ−ズ・コ−ポレ−シヨン | High energy stored rare earth-iron magnetic alloy |
| JPS60254708A (en) * | 1984-05-31 | 1985-12-16 | Daido Steel Co Ltd | Manufacture of permanent magnet |
| JPS61174364A (en) * | 1985-09-17 | 1986-08-06 | Mori Kaneo | Permanent magnet |
-
1986
- 1986-10-28 JP JP61254670A patent/JPS63110604A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609852A (en) * | 1983-06-24 | 1985-01-18 | ゼネラル・モ−タ−ズ・コ−ポレ−シヨン | High energy stored rare earth-iron magnetic alloy |
| JPS60254708A (en) * | 1984-05-31 | 1985-12-16 | Daido Steel Co Ltd | Manufacture of permanent magnet |
| JPS61174364A (en) * | 1985-09-17 | 1986-08-06 | Mori Kaneo | Permanent magnet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544569A (en) * | 2019-08-24 | 2019-12-06 | 宁波合力磁材技术有限公司 | neodymium-iron-boron magnet and production process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531803B2 (en) | 1993-05-13 |
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