JPS62234302A - Fireretardant resin magnet - Google Patents
Fireretardant resin magnetInfo
- Publication number
- JPS62234302A JPS62234302A JP60243514A JP24351485A JPS62234302A JP S62234302 A JPS62234302 A JP S62234302A JP 60243514 A JP60243514 A JP 60243514A JP 24351485 A JP24351485 A JP 24351485A JP S62234302 A JPS62234302 A JP S62234302A
- Authority
- JP
- Japan
- Prior art keywords
- rare earth
- alloy
- oxidation
- magnet
- weight
- 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
- 239000003063 flame retardant Substances 0.000 title claims abstract description 29
- 229920005989 resin Polymers 0.000 title claims abstract description 24
- 239000011347 resin Substances 0.000 title claims abstract description 24
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 25
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 22
- 239000000956 alloy Substances 0.000 claims abstract description 22
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 19
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 19
- 238000000576 coating method Methods 0.000 claims abstract description 17
- 230000003647 oxidation Effects 0.000 claims abstract description 15
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 7
- 239000010941 cobalt Substances 0.000 claims abstract description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920000620 organic polymer Polymers 0.000 claims description 7
- 239000002491 polymer binding agent Substances 0.000 claims description 7
- -1 polyphenylene Polymers 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000002184 metal Substances 0.000 abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000011230 binding agent Substances 0.000 abstract description 3
- 239000011651 chromium Substances 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 229910052684 Cerium Inorganic materials 0.000 abstract description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000004642 Polyimide Substances 0.000 abstract description 2
- 229920000265 Polyparaphenylene Polymers 0.000 abstract description 2
- 229910052772 Samarium Inorganic materials 0.000 abstract description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 abstract description 2
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 229910052809 inorganic oxide Inorganic materials 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 150000002739 metals Chemical class 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229920001721 polyimide Polymers 0.000 abstract description 2
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052727 yttrium Inorganic materials 0.000 abstract description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052726 zirconium Inorganic materials 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000008188 pellet Substances 0.000 description 5
- 229920002647 polyamide Polymers 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- QEZIKGQWAWNWIR-UHFFFAOYSA-N antimony(3+) antimony(5+) oxygen(2-) Chemical class [O--].[O--].[O--].[O--].[Sb+3].[Sb+5] QEZIKGQWAWNWIR-UHFFFAOYSA-N 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 150000002909 rare earth metal compounds Chemical class 0.000 description 3
- 229920002292 Nylon 6 Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical class O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- WHHGLZMJPXIBIX-UHFFFAOYSA-N decabromodiphenyl ether Chemical compound BrC1=C(Br)C(Br)=C(Br)C(Br)=C1OC1=C(Br)C(Br)=C(Br)C(Br)=C1Br WHHGLZMJPXIBIX-UHFFFAOYSA-N 0.000 description 2
- 229910000476 molybdenum oxide Chemical class 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical class [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 description 2
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 1
- 229920000299 Nylon 12 Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920003056 polybromostyrene Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/026—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は希土類金属／コバルト合金系樹脂磁石に関し、
更に詳しくは優れた難燃性を有する樹脂磁石に関する。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to rare earth metal/cobalt alloy based resin magnets.
More specifically, the present invention relates to a resin magnet having excellent flame retardancy.
「従来技術と問題点」
希土類金属とコバルトとを主成分とする合金磁石（以下
、希土類磁石という）は大きな結晶磁気異方性と飽和磁
化を有する高エネルギー積焼結磁石として用途を拡大し
つつある。しかし、反面脆弱で強度上の難点があり、そ
こで合成樹脂でバインドすることにより強度を改善した
希土［樹脂磁石が上市されている。しかるに希土類樹脂
磁石は酸化されやす（、これを用いた樹脂磁石は難燃性
では無（用途が限定されている。従って、難燃化された
希土類樹脂磁石の出現が望まれているが、未だ有効な難
燃化方法は提案されていない。"Prior art and problems" Alloy magnets whose main components are rare earth metals and cobalt (hereinafter referred to as rare earth magnets) are being used as high-energy product sintered magnets with large magnetocrystalline anisotropy and saturation magnetization, and their use is expanding. be. However, on the other hand, it is brittle and has problems in terms of strength, so rare earth [resin magnets] whose strength is improved by binding with synthetic resin are on the market. However, rare earth resin magnets are easily oxidized (and resin magnets using them are not flame retardant (uses are limited). Therefore, although it is hoped that rare earth resin magnets with flame retardant properties will appear, there are still no flame retardant magnets. No effective flame retardant method has been proposed.
「問題点を解決するための手段」
本発明者らはかかる実情に鑑み、希土類磁石粉末を用い
た樹脂磁石の難燃化に関し鋭意研究を重ねた結果、ＵＬ
（アンダーライターラボラトリーズ）規格で優れた難燃
性を発揮する磁石を見出し本発明に至った。"Means for Solving the Problems" In view of the above circumstances, the inventors of the present invention have conducted intensive research on flame retardant resin magnets using rare earth magnet powder, and have found that UL
(Underwriter Laboratories) We discovered a magnet that exhibits excellent flame retardancy according to the standards, leading to the present invention.
即ち、本発明は希土類金属とコバルトを主成分として含
む合金磁石粉末、難燃剤及び有機高分子バインダーとか
らなる組成物を成形してなる樹脂磁石において、該合金
磁石粉末が耐酸化被膜にて表面被覆されたことを特徴と
する難燃性樹脂磁石を内容とするものである。That is, the present invention provides a resin magnet formed by molding a composition consisting of an alloy magnet powder containing rare earth metals and cobalt as main components, a flame retardant, and an organic polymer binder. It contains a flame-retardant resin magnet characterized by being coated.
本発明で用いる希土類合金磁石粉末はサマリウム、セリ
ウム、イツトリウム、プラセオジウム、ミツシュメタル
その他の希土類金属とコバルトを主成分として含み、必
要に応じてジルコニウム、銅、鉄、その他を含む合金を
粉砕して得た粉末磁石である。これらは粉砕ｔｌｔｖＪ
！処理を施して用いることが多い、その代表例はＳ ＠
Ｃｏ ｓ＋ Ｓ ｓ ２Ｃｏ□７．（ＭＭ）２ＣＯ１７
その他である。かかる合金磁石粉末を有機バインダー及
び難燃剤と共に混合、成形して得た磁石は充分多量の難
燃剤を配合した場合には有炎燃焼を一定限度以下に抑制
することは可能であるが、極めて多量の難燃剤を必要と
するうえに、希土類合金磁石粉末の無炎燃焼（ブローイ
ング）を抑制し得ない。更に、これらは樹脂磁石成形特
の高温で酸化が進行し、発火するという難点をも呈する
。かかる現象から、本発明者らは希±！１樹脂磁石の難
燃化には合金磁石粉末そのものの酸化抑制が必要である
との結論に達し、種々検討を重ねた結果、気密性を有す
る緻密な酸化防止性被膜を形成せしめた希土類合金磁石
粉末を用いればブローイングを顕著に抑制し得るばかり
でなく、有炎燃焼抑制に要する難燃剤量を減少し得るこ
とを見出した。この様な被膜としては種々のものが使え
る０例えば、ニッケル、クローム、その他の耐酸化性金
属、低融点ガラス、その他の無機酸化物、ポリイミド、
ポリフェニレン、フェノール尋封月Ｌポリシロキサン、
その他の耐熱性高分子化合物等がある。被膜形成の方法
は湿式メッキ、粉末スパッタリング、共沈析出法、溶液
コーティング法、その他使用する被膜基材に応じて用い
る０本発明で好ましい被膜は耐酸化性金属被膜である。The rare earth alloy magnet powder used in the present invention contains samarium, cerium, yttrium, praseodymium, mitsch metal, and other rare earth metals and cobalt as main components, and is obtained by grinding an alloy containing zirconium, copper, iron, and others as necessary. It is a powder magnet. These are crushed tltvJ
! A typical example is S@, which is often processed and used.
Co s+ S s 2Co□7. (MM)2CO17
Others. Magnets obtained by mixing and molding such alloy magnet powder with an organic binder and flame retardant can suppress flaming combustion to below a certain limit if a sufficiently large amount of flame retardant is blended, but if a sufficiently large amount of flame retardant is added, flammable combustion can be suppressed to below a certain limit. flame retardant is required, and flameless combustion (blowing) of rare earth alloy magnet powder cannot be suppressed. Furthermore, these materials also have the disadvantage that oxidation progresses at the high temperatures involved in molding resin magnets, resulting in ignition. Based on this phenomenon, the present inventors discovered rare ±! 1. We came to the conclusion that it is necessary to suppress the oxidation of the alloy magnet powder itself in order to make resin magnets flame retardant, and as a result of various studies, we have created a rare earth alloy magnet that has a dense oxidation-resistant coating that is airtight. It has been found that by using powder, not only can blowing be significantly suppressed, but also the amount of flame retardant required to suppress flammable combustion can be reduced. Various materials can be used as such coatings, such as nickel, chromium, other oxidation-resistant metals, low-melting glass, other inorganic oxides, polyimide,
Polyphenylene, phenol polysiloxane,
There are other heat-resistant polymer compounds, etc. The coating may be formed by wet plating, powder sputtering, co-precipitation, solution coating, or other methods depending on the coating substrate used. The preferred coating in the present invention is an oxidation-resistant metal coating.
本発明で使用される有機高分子バインダーを例示すると
、ナイロン−６、ナイロン−１２、その他のポリアミド
、ポリエチレンテレフタレート、ポリブチレンテレフタ
レートその他の線状ポリエステル、ポリプロピレン、塩
素化ポリエチレン、その他の（変性）ポリオレフィン、
゛エポキシ樹脂、フェノール樹脂等々であるが、汎用さ
れる熱可塑性、熱硬化性樹脂やゴム質合成高分子を所望
する機械的、科学的性質に応じて選択使用する。これら
の中でもポリアミド類は機械的性質と成形性が良好で、
特に好適である。又、一般に希土１［１脂磁石において
は、吸湿による酸化劣化の促進効果を防止する目的で、
例えばナイロン−６の如き高吸湿性樹脂は使用されない
が、本発明にあっては磁石粉末の耐酸化性が良好である
ので、かかる限、 定的選択使用をする必要がない。Examples of organic polymer binders used in the present invention include nylon-6, nylon-12, other polyamides, polyethylene terephthalate, polybutylene terephthalate and other linear polyesters, polypropylene, chlorinated polyethylene, and other (modified) polyolefins. ,
Although there are epoxy resins, phenolic resins, etc., widely used thermoplastic resins, thermosetting resins, and rubbery synthetic polymers are selected and used depending on the desired mechanical and scientific properties. Among these, polyamides have good mechanical properties and moldability,
Particularly suitable. Additionally, in rare earth 1[1 fat magnets, generally, in order to prevent the acceleration effect of oxidative deterioration due to moisture absorption,
For example, a highly hygroscopic resin such as nylon-6 is not used, but since the magnet powder has good oxidation resistance in the present invention, there is no need to selectively use it as far as it is concerned.
本発明で用いる難燃剤としては、ハロゲン化有機化合物
と二酸化アンチモン及び／又は酸化モリブデンとを組合
わせた有炎燃焼抑制剤とブローイング抑制剤の混合物を
用いる。ハロゲン化合物としてはデカブロモジフェニエ
ルエーテル、ポリブロモスチレン、テトラブロモビスフ
ェノールＡ等が例示され、ブローイング抑制剤としては
ホウ酸亜鉛、リン酸エステル等が例示される。As the flame retardant used in the present invention, a mixture of a flaming combustion inhibitor and a blowing inhibitor, which is a combination of a halogenated organic compound and antimony dioxide and/or molybdenum oxide, is used. Examples of the halogen compound include decabromodiphenyl ether, polybromostyrene, and tetrabromobisphenol A, and examples of the blowing inhibitor include zinc borate and phosphate ester.
本発明の磁石を製造するにあたり、好適な耐酸化性被膜
の量は用いる被膜の材質や被膜形成方法によって種々変
化するが、被処理合金磁石粉１００重量部に対し、０．
０１〜５重量部である。あまり過大量であってもより一
層の耐酸化性向上効果は乏しく工業的に意味がないので
、最大でも５重量部以下とするのがよい、金属被膜は最
も効果的であり、０．０１〜３重量部でよく、好ましく
は０゜５〜２．ＯＭ量部である。一般に耐熱性高分子被
膜は若干多量の処理量を要し、１〜５重量部が適切であ
る。In producing the magnet of the present invention, the suitable amount of the oxidation-resistant coating varies depending on the material of the coating used and the method of forming the coating, but 0.000 parts by weight per 100 parts by weight of the alloy magnet powder to be treated.
01 to 5 parts by weight. Even if the amount is too excessive, the effect of further improving oxidation resistance will be poor and it will be industrially meaningless, so it is best to keep the amount at most 5 parts by weight or less. Metal coatings are the most effective, and 0.01 to The amount may be 3 parts by weight, preferably 0.5 to 2.0 parts by weight. This is the OM quantity part. Generally, heat-resistant polymer coatings require a slightly larger amount of treatment, and 1 to 5 parts by weight is appropriate.
本発明による磁石は耐酸化性被膜を存する希土類磁石粉
末を４０〜９５重量％含有することが好適である。４０
重量％未滴の磁石も当然製造可能であるが、工業的に有
意な用途が無ぐ、一方９５重量％を越えると成形が困難
となって実用性に欠ける。The magnet according to the present invention preferably contains 40 to 95% by weight of rare earth magnet powder having an oxidation-resistant coating. 40
Of course, it is possible to manufacture magnets with no droplets by weight, but there is no industrially significant use for them.On the other hand, if the weight exceeds 95 weight%, molding becomes difficult and lacks practicality.
使用する難燃剤量は有機高分子バインダー１００重量部
に対し、４０〜１２０重量部が好適である。難燃剤使用
量の下限は効果的に難燃性が達成される量、上限は更な
る増量に応じた難燃性効果に乏しいことが理由である。The amount of flame retardant used is preferably 40 to 120 parts by weight based on 100 parts by weight of the organic polymer binder. The reason is that the lower limit of the amount of flame retardant used is the amount that effectively achieves flame retardancy, and the upper limit is that the flame retardant effect is insufficient as the amount is further increased.
ブローイング抑制剤はこのうち２０〜６０重量部がよく
、残量をハロゲン化有機化合物と三酸化アンチモン及び
／又は酸化モリブデンで構成する。ハロゲン化を濃化合
物と二酸化アンチモン及び／又は酸化モルテブデンの使
用量比は４：１乃至２：１が好ましい。The blowing suppressant is preferably used in an amount of 20 to 60 parts by weight, with the remaining amount consisting of the halogenated organic compound and antimony trioxide and/or molybdenum oxide. The ratio of the halogenated compound to antimony dioxide and/or moltebudenum oxide is preferably 4:1 to 2:1.
添加剤としては、例えば合金磁石粉末の分散性を向上さ
せるための表面処理剤、安定性向上剤、抗酸化剤、紫外
線吸収剤、滑剤等公知のものがその目的に応じて用いら
れる。As additives, known additives such as surface treatment agents, stability improvers, antioxidants, ultraviolet absorbers, and lubricants for improving the dispersibility of the alloy magnet powder may be used depending on the purpose.
磁石の成形にあたっては、使用する有機高分子バインダ
ーの種類、バインダーの使用量比、所望の磁石形状によ
り汎用されるゴム、プラスチックスの成形方法から適宜
選択する０例えば、押出成形、射出成形、圧縮成形は好
適な成形方法であり、必要に応じて磁場を印加しつつ成
形する。When molding the magnet, the appropriate method is selected from commonly used molding methods for rubber and plastics depending on the type of organic polymer binder used, the ratio of binder usage, and the desired shape of the magnet.For example, extrusion molding, injection molding, compression molding, etc. Molding is a suitable molding method, and molding is performed while applying a magnetic field as necessary.
「実施例」
以下、本発明の好適な例を実施例により説明するが、本
発明はこれらによって何ら制限されない。"Examples" Hereinafter, preferred examples of the present invention will be explained with reference to Examples, but the present invention is not limited by these in any way.
実施例１
ＳｓＣｏ 合金磁石粉末を事実上無酸素状態の浴槽の
中に分散させ、その表面にＮｉ ： Ｃｒ＝４０ ：
６０の被膜を０．９重量％電着せしめた。この合金磁石
粉末を用い、第１表に示した樹脂磁石組成物をラボプラ
ストミルで２１０℃で混練した後、冷却したものを粉砕
しベレット化した。該ペレットを用いて２３０℃で熱プ
レスにより１龍厚の板を得、１２．７鶴ｘ １ｗｘ １
２７鶴の試験片を作成し、ＵＬ−９４の試験法に準じて
試験を５回繰り返し、第２表の結果を得た。Example 1 SsCo alloy magnet powder was dispersed in a virtually oxygen-free bath, and the surface was coated with Ni:Cr=40:
A coating of No. 60 was electrodeposited at 0.9% by weight. Using this alloy magnet powder, the resin magnet composition shown in Table 1 was kneaded at 210° C. in a Laboplast Mill, and then cooled and pulverized into pellets. Using the pellets, a plate with a thickness of 1 dragon was obtained by heat pressing at 230°C, 12.7 Tsuru x 1w x 1
A test piece of No. 27 Tsuru was prepared, and the test was repeated five times according to the UL-94 test method, and the results shown in Table 2 were obtained.
第２表の結果より、難燃性はＶ−Ｏと評価される。From the results in Table 2, the flame retardancy is evaluated as VO.
第１表
金属被膜希土類金属化合物（ＳｍＣｏ ） ６０
重量部ポリアミド１２１５
難燃剤 ホウ酸亜鉛 ６〃 デカ
ブロモジフェニルエーテル １２Ｉ 二酸化アンチモ
ン ６安定剤 「イルガノンクス １０９
８Ｊ（商品名、チバガイギー製） １
比較例１
第３表に示した樹脂磁石組成物を、実施例１と同様に２
１０℃で、ラボプラストミルで混練した後、冷却したも
のを粉砕し、ペレット化した。該ベレットを用いて２３
０℃で熱プレスによりｌ１厚の板を得、１２．７ｗ５Ｘ
ｌ鶴Ｘ １２７ｍの試験片を作成し、０Ｌ−９４の試
験法に準じて試験をした結果、試料はことごとく第１回
目の着火においてクランプ部まで焼結してしまった。Table 1 Metal coated rare earth metal compound (SmCo) 60
Part by weight Polyamide 1215 Flame retardant Zinc borate 6 Decabromodiphenyl ether 12I Antimony dioxide 6 Stabilizer Irganonx 109
8J (trade name, manufactured by Ciba Geigy) 1 Comparative Example 1 The resin magnet composition shown in Table 3 was prepared in the same manner as in Example 1.
The mixture was kneaded at 10° C. in a Laboplasto mill, cooled, and crushed to form pellets. 23 using the bellet
Obtain l1 thick plate by heat pressing at 0℃, 12.7w5X
Test specimens of 127 m of Tsuru
第３表
金属被膜希土類金属化合物（ＳｍＣｏ ） ６０
重量部ポリアミド１２３９
安定剤「イルガノックスＪ １０９８ １比
較例２
５ｍＣｏ５合金磁石粉末を用いて、希土類金属化合物（
Ｓ ＭＣｏ ｓ ）が６０重量％となる様にポリアミド
を添加し、これに実施例１と同量の難燃剤を添加した樹
脂磁石組成物を、実施例１と同様に２１０℃でラボブラ
ストミルで混練した後、冷却したものを粉砕しペレット
化した。該ペレットを用いて２３０℃で熱プレスにより
１鶴厚の板を得、１２．７鶴×ｌｍＸ１７７ｍの試験片
を作成し、０Ｌ−９４の試験法に準じて試験をした結果
、試料はことごとく第１回目の着火においてクランプ部
まで焼結してしまった。Table 3 Metal-coated rare earth metal compounds (SmCo) 60
Part by weight Polyamide 1239 Stabilizer "Irganox J 1098 1 Comparative Example 2 Using 5mCo5 alloy magnet powder, rare earth metal compound (
A resin magnet composition in which polyamide was added so that the SMCos) was 60% by weight and the same amount of flame retardant as in Example 1 was added was prepared using a lab blast mill at 210°C in the same manner as in Example 1. After kneading, the mixture was cooled and crushed into pellets. Using the pellets, a plate with a thickness of 1 crane was obtained by heat pressing at 230°C, a test piece of 12.7 mm x 177 m was prepared, and a test was performed according to the test method of 0L-94. During the first ignition, even the clamp part was sintered.
「作用・効果」
叙上の通り、本発明によれば難燃性が大巾に向上した難
燃性樹脂磁石を提供でき、高度の難燃性の要求される用
途に汎く利用され得るもので、その有用性は頗る大であ
る。"Action/Effect" As described above, according to the present invention, a flame-retardant resin magnet with greatly improved flame retardance can be provided, and can be widely used in applications requiring a high degree of flame retardancy. And its usefulness is enormous.
代理人 弁理士 伊 丹 健 次 ・ 、′□ＩＶ、
□ ＋１．、、：ノAgent: Patent attorney Kenji Itami ・ ,′□IV,
□ +1. ,,:of
Claims (1)
粉末、難燃剤及び有機高分子バインダーとからなる組成
物を成形してなる樹脂磁石において、該合金磁石粉末が
耐酸化被膜にて表面被覆されたことを特徴とする難燃性
樹脂磁石。 ２、耐酸化被膜の量が希土類金属とコバルトを主成分と
して含む合金磁石粉末１００重量部に対して０．０１〜
５重量部であることを特徴とする特許請求の範囲第１項
記載の難燃性樹脂磁石。 ３、耐酸化被膜を有する合金磁石粉末が４０〜９５重量
％と有機高分子バインダーと難燃剤の合計が６０〜５重
量％とからなり、難燃剤が有機高分子バインダー１００
重量部あたり、４０〜１２０重量部であることを特徴と
する特許請求の範囲第１項又は第２項記載の難燃性樹脂
磁石。[Claims] 1. A resin magnet formed by molding a composition consisting of an alloy magnet powder containing rare earth metals and cobalt as main components, a flame retardant, and an organic polymer binder, wherein the alloy magnet powder has an oxidation-resistant coating. A flame-retardant resin magnet characterized by having a surface coated with. 2. The amount of oxidation-resistant film is 0.01 to 100 parts by weight of alloy magnet powder containing rare earth metals and cobalt as main components.
5 parts by weight of the flame-retardant resin magnet according to claim 1. 3. The alloy magnet powder having an oxidation-resistant film is composed of 40 to 95% by weight, and the total of the organic polymer binder and flame retardant is 60 to 5% by weight, and the flame retardant is the organic polymer binder 100% by weight.
The flame-retardant resin magnet according to claim 1 or 2, wherein the amount is 40 to 120 parts by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60243514A JPS62234302A (en) | 1985-10-30 | 1985-10-30 | Fireretardant resin magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60243514A JPS62234302A (en) | 1985-10-30 | 1985-10-30 | Fireretardant resin magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62234302A true JPS62234302A (en) | 1987-10-14 |
Family
ID=17105037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60243514A Pending JPS62234302A (en) | 1985-10-30 | 1985-10-30 | Fireretardant resin magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62234302A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6710693B2 (en) * | 2001-03-23 | 2004-03-23 | Nec Tokin Corporation | Inductor component containing permanent magnet for magnetic bias and method of manufacturing the same |
| US6791446B2 (en) * | 2001-05-30 | 2004-09-14 | Nec Tokin Corporation | Inductance component comprising a permanent magnet greater in sectional area than a magnetic path and disposed in a magnetic gap |
| EP1583111A1 (en) * | 2003-01-10 | 2005-10-05 | Neomax Co., Ltd. | Oxidation-resistant rare earth based magnet powder and method for production thereof, compound for rare earth based bonded magnet, rare earth based bonded magnet and method for production thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6041202A (en) * | 1983-08-17 | 1985-03-04 | Shin Etsu Chem Co Ltd | Plastic magnet composition |
-
1985
- 1985-10-30 JP JP60243514A patent/JPS62234302A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6041202A (en) * | 1983-08-17 | 1985-03-04 | Shin Etsu Chem Co Ltd | Plastic magnet composition |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6710693B2 (en) * | 2001-03-23 | 2004-03-23 | Nec Tokin Corporation | Inductor component containing permanent magnet for magnetic bias and method of manufacturing the same |
| US6791446B2 (en) * | 2001-05-30 | 2004-09-14 | Nec Tokin Corporation | Inductance component comprising a permanent magnet greater in sectional area than a magnetic path and disposed in a magnetic gap |
| EP1583111A1 (en) * | 2003-01-10 | 2005-10-05 | Neomax Co., Ltd. | Oxidation-resistant rare earth based magnet powder and method for production thereof, compound for rare earth based bonded magnet, rare earth based bonded magnet and method for production thereof |
| EP1583111A4 (en) * | 2003-01-10 | 2006-03-15 | Neomax Co Ltd | Oxidation-resistant rare earth based magnet powder and method for production thereof, compound for rare earth based bonded magnet, rare earth based bonded magnet and method for production thereof |
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