JPS63114107A - Synthetic resin magnet - Google Patents
Synthetic resin magnetInfo
- Publication number
- JPS63114107A JPS63114107A JP61258330A JP25833086A JPS63114107A JP S63114107 A JPS63114107 A JP S63114107A JP 61258330 A JP61258330 A JP 61258330A JP 25833086 A JP25833086 A JP 25833086A JP S63114107 A JPS63114107 A JP S63114107A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- magnet
- resin
- electron beam
- magnetic
- 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
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 42
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 42
- 229920005989 resin Polymers 0.000 claims abstract description 22
- 239000011347 resin Substances 0.000 claims abstract description 22
- 238000010894 electron beam technology Methods 0.000 claims abstract description 14
- 229910001004 magnetic alloy Inorganic materials 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 13
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 9
- 239000011230 binding agent Substances 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 8
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 6
- 230000001678 irradiating effect Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 4
- 238000001723 curing Methods 0.000 description 4
- 239000003999 initiator Substances 0.000 description 4
- 230000005415 magnetization Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 description 3
- YSUQLAYJZDEMOT-UHFFFAOYSA-N 2-(butoxymethyl)oxirane Chemical compound CCCCOCC1CO1 YSUQLAYJZDEMOT-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001227 electron beam curing Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000004848 polyfunctional curative Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- DKEGCUDAFWNSSO-UHFFFAOYSA-N 1,8-dibromooctane Chemical compound BrCCCCCCCCBr DKEGCUDAFWNSSO-UHFFFAOYSA-N 0.000 description 1
- BRWYXBQGVNYOBM-UHFFFAOYSA-N 2,2-dichloro-1-(3-phenoxyphenyl)ethanone Chemical compound ClC(Cl)C(=O)C1=CC=CC(OC=2C=CC=CC=2)=C1 BRWYXBQGVNYOBM-UHFFFAOYSA-N 0.000 description 1
- RMBFBMJGBANMMK-UHFFFAOYSA-N 2,4-dinitrotoluene Chemical compound CC1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O RMBFBMJGBANMMK-UHFFFAOYSA-N 0.000 description 1
- PLAZTCDQAHEYBI-UHFFFAOYSA-N 2-nitrotoluene Chemical compound CC1=CC=CC=C1[N+]([O-])=O PLAZTCDQAHEYBI-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- USOTYNRYZSYLTN-UHFFFAOYSA-N bis[4-(chloromethyl)phenyl]methanone Chemical compound C1=CC(CCl)=CC=C1C(=O)C1=CC=C(CCl)C=C1 USOTYNRYZSYLTN-UHFFFAOYSA-N 0.000 description 1
- VYHBFRJRBHMIQZ-UHFFFAOYSA-N bis[4-(diethylamino)phenyl]methanone Chemical compound C1=CC(N(CC)CC)=CC=C1C(=O)C1=CC=C(N(CC)CC)C=C1 VYHBFRJRBHMIQZ-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 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
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- RLQDTQROHXMPCC-UHFFFAOYSA-N methyl 2,2-bis(2,4-dinitrophenyl)acetate Chemical compound C=1C=C([N+]([O-])=O)C=C([N+]([O-])=O)C=1C(C(=O)OC)C1=CC=C([N+]([O-])=O)C=C1[N+]([O-])=O RLQDTQROHXMPCC-UHFFFAOYSA-N 0.000 description 1
- JYTVUGDUMLIVTJ-UHFFFAOYSA-N methyl 4-benzylbenzoate Chemical compound C1=CC(C(=O)OC)=CC=C1CC1=CC=CC=C1 JYTVUGDUMLIVTJ-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000004843 novolac epoxy resin Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 150000004291 polyenes Chemical class 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 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
- H01F1/0533—Alloys characterised by their composition containing rare earth metals in a bonding agent
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、量産性がよく、また磁気特性が優れ、圧縮成
形樹脂磁石や塗布型ペースト磁石に用いて好適な合成樹
脂磁石に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a synthetic resin magnet that is easy to mass produce, has excellent magnetic properties, and is suitable for use in compression molded resin magnets and coated paste magnets.
成形品の寸法精度が良い、量産性が良いなどの利点を有
しながら、磁気特性が優れた磁性材料として、ＲＣｏ、
（Ｒは希土類元素） 、Ｒ２Ｃｏ、、で表わされる希土
類元素−コバルト系、希土類元素−鉄一ホウ素系などの
希土類元素を含有する磁性合金粉末とそのバインダーで
ある、ナイロンなどの熱可塑性樹脂、エポキシ樹脂など
の熱硬化性樹脂などの合成樹脂とからなる合成樹脂磁石
は、近年、家庭電器製品、ＯＡ機器、磁気センサー、各
種モーターなどに急速にその用途を広げている。RCo, a magnetic material with excellent magnetic properties, has advantages such as good dimensional accuracy of molded products and good mass production.
(R is a rare earth element), R2Co, Magnetic alloy powder containing rare earth elements such as rare earth element-cobalt system, rare earth element-iron-boron system, and its binder, thermoplastic resin such as nylon, epoxy In recent years, synthetic resin magnets made of synthetic resins such as thermosetting resins have been rapidly expanding into applications such as home appliances, office automation equipment, magnetic sensors, and various motors.
しかしながら、上記希土類元素を含有する磁性合金粉末
は酸化され易い上に、合成樹脂磁石を製造する際、８０
〜１５０℃程度まで加温されるため、酸化による磁気特
性の低下がおき易い。これを避けるため常温で製造しよ
うとして常温硬化剤を使用すると、硬化に時間を要する
ため生産性が極端に低下する。However, the magnetic alloy powder containing rare earth elements is easily oxidized, and when manufacturing synthetic resin magnets, 80%
Since it is heated to about 150° C., the magnetic properties tend to deteriorate due to oxidation. If a room-temperature curing agent is used in an attempt to manufacture at room temperature in order to avoid this, curing takes time, resulting in an extremely low productivity.
本発明は、上記問題点に鑑み、製造する際、酸化して磁
気特性が低下し難い、かつ生産性の高い合成樹脂磁石を
提供することを目的とする。SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a synthetic resin magnet that is less susceptible to deterioration in magnetic properties due to oxidation during production and has high productivity.
本発明の合成樹脂磁石は、希土類元素を含有する磁性合
金粉末とそのバインダーである合成樹脂とからなる合成
樹脂磁石において、該合成樹脂が紫外線硬化型樹脂また
は電子線硬化型樹脂であるものである。The synthetic resin magnet of the present invention is a synthetic resin magnet made of a magnetic alloy powder containing a rare earth element and a synthetic resin as a binder thereof, where the synthetic resin is an ultraviolet curable resin or an electron beam curable resin. .
本発明の合成樹脂磁石は、樹脂を硬化させるための紫外
線や電子線を比較的任意の時期に適用できるので、硬化
させた後、所望箇所に取付けて使用することも、また、
磁性被膜を金属、セラミックス、プラスチックなどの基
体表面にペースト状に形成した後、硬化させて使用する
こともできる。Since the synthetic resin magnet of the present invention can be applied with ultraviolet rays or electron beams to harden the resin at a relatively arbitrary time, it can also be used by attaching it to a desired location after hardening.
It is also possible to use the magnetic coating by forming it into a paste on the surface of a substrate such as metal, ceramics, or plastic, and then curing it.
本発明による希土類元素を含有する磁性合金粉末は、上
述したようにＲＣｏ５、Ｒ，Ｃｏ、、で表わされるＲ−
Ｃｏ系、Ｒ−Ｆｅ−Ｂ系などの公知のものである。必要
に応じてこの磁性合金粉末に、例えば、シランカップリ
ング剤、チタネートカップリング剤などの表面処理剤、
酸化防止剤などで予備処理を施すこともできる。その平
均粒径は、特に制限を受けず合成樹脂磁石用として通常
用いら五る程度の１〜４０μ−であるが、本発明の合成
樹脂磁石を前記のように硬化させた後取付けて使用する
場合は５〜３０μｍが、また、磁性被膜をペースト状に
形成した後硬化させて使用する場合は１〜３μ曽が好ま
しい。As mentioned above, the magnetic alloy powder containing rare earth elements according to the present invention is R-
These are known ones such as Co type and R-Fe-B type. If necessary, a surface treatment agent such as a silane coupling agent or a titanate coupling agent may be added to the magnetic alloy powder.
Preliminary treatment with an antioxidant or the like can also be performed. The average particle size is not particularly limited and is about 1 to 40 μ-, which is about the same as that normally used for synthetic resin magnets. In this case, the thickness is preferably 5 to 30 μm, and in the case where the magnetic coating is formed into a paste and then cured, the thickness is preferably 1 to 3 μm.
この磁性合金粉末のバインダーである合成樹脂は紫外線
硬化型樹脂または電子線硬化型樹脂である。紫外線硬化
型樹脂または電子線硬化型樹脂としては、公知の不飽和
ポリエステル樹脂、不飽和アクリル樹脂、ポリエーテル
アクリレート、ポリエステルアクリレート、ポリウレタ
ンアクリレート、エポキシアクリレート、シリコーン樹
脂アクリレート、ポリブタジェンアクリレートなどのア
クリル変性樹脂、ポリオール／ポリエン樹脂系などが使
用できる。これらの樹脂を紫外線硬化型として使用する
場合は、光反応開始剤が必要である。The synthetic resin that is the binder for this magnetic alloy powder is an ultraviolet curable resin or an electron beam curable resin. Examples of ultraviolet curable resins or electron beam curable resins include acrylic modified resins such as known unsaturated polyester resins, unsaturated acrylic resins, polyether acrylates, polyester acrylates, polyurethane acrylates, epoxy acrylates, silicone resin acrylates, and polybutadiene acrylates. Resins, polyol/polyene resin systems, etc. can be used. When these resins are used as UV-curable resins, a photoreaction initiator is required.
この光反応開始剤としては、４．４′−ジクロロメチル
ベンゾフェノン、２．２’−ジェトキシアセトフェノン
、アセトフェノン、４′−フェノキシ−２，２−ジクロ
ロアセトフェノン、ベンゾフェノン、ベンゾインイソブ
チルエーテル、４．４’−ビス（ジエチルアミノ）ベン
ゾフェノン、メチル−ｐ−ベンザイルベンゾエート、Ｏ
−二トロトルエン、２．４−ジニトロトルエン、Ｏ−ニ
トロベンジルピリジン、メチルビス（２，４−ジニトロ
フェニル）アセテートなどが挙げられる。必要に応じて
、これら樹脂に、成形加工性、機械的特性などを改良す
るために、希釈剤、可塑剤、滑剤、安定剤などを添加す
ることもできる。Examples of the photoreaction initiator include 4,4'-dichloromethylbenzophenone, 2,2'-jethoxyacetophenone, acetophenone, 4'-phenoxy-2,2-dichloroacetophenone, benzophenone, benzoin isobutyl ether, 4,4' -bis(diethylamino)benzophenone, methyl-p-benzylbenzoate, O
-nitrotoluene, 2,4-dinitrotoluene, O-nitrobenzylpyridine, methylbis(2,4-dinitrophenyl)acetate, and the like. If necessary, diluents, plasticizers, lubricants, stabilizers, etc. can be added to these resins in order to improve moldability, mechanical properties, etc.
磁性合金粉末と合成樹脂との量的割合は、前記のように
硬化させた後取付けて使用する場合、重量比で１００：
（１〜１０）である、この合成樹脂量が１未満では、磁
性合金粉末の全表面に対して合成樹脂が充分湿潤せず、
一方１０を超えると、本発明の好ましい製造法である圧
縮成形時、合成樹脂が絞り出る現象がおこり易くなる。The quantitative ratio of the magnetic alloy powder and the synthetic resin is 100: by weight when used after being hardened as described above.
(1 to 10), and if the amount of the synthetic resin is less than 1, the synthetic resin will not sufficiently wet the entire surface of the magnetic alloy powder,
On the other hand, if it exceeds 10, the synthetic resin is likely to be squeezed out during compression molding, which is the preferred manufacturing method of the present invention.
また、磁性被膜をペースト状に形成した後硬化させて使
用する場合、重量比で１００：（５〜４０）である。Further, when the magnetic coating is formed into a paste and then cured for use, the weight ratio is 100:(5 to 40).
この合成樹脂量が５未満では、塗布形成時円滑な塗布を
充分なし難く、塗布ムラが生じ易い。一方、４０を超え
ると、被膜の磁気特性に不足を来し易い。If the amount of the synthetic resin is less than 5, it is difficult to achieve a sufficiently smooth coating during coating formation, and uneven coating is likely to occur. On the other hand, if it exceeds 40, the magnetic properties of the film tend to be insufficient.
次に、本発明の合成樹脂磁石の製造方法について説明す
る。硬化させた後取付けて使用する磁石の製造の場合は
、前記磁性合金粉末と前記合成樹脂とを前記の重量比に
配合し、３軸ロール等で混合、混練する。得られた混練
物を磁場を印加した金型内で例えば、圧縮成形する。こ
の際、射出成形法、押出成形法は混練物の状態が流動性
に冨んでいるので不適当である。その後、この成形物に
紫外線もしくは電子線を照射して硬化させる。Next, a method for manufacturing the synthetic resin magnet of the present invention will be explained. In the case of manufacturing a magnet that is used after being hardened, the magnetic alloy powder and the synthetic resin are blended in the weight ratio described above, and mixed and kneaded using a triaxial roll or the like. The obtained kneaded material is, for example, compression molded in a mold to which a magnetic field is applied. In this case, injection molding and extrusion molding are unsuitable because the kneaded product is highly fluid. Thereafter, this molded product is cured by irradiating it with ultraviolet rays or electron beams.
また、ペースト状に形成した後硬化させて使用する磁石
の製造の場合は、混合、混練まで、前記硬化させた後取
付けて使用する磁石の場合と同様に行ない、得られたペ
ーストをスクリーン印刷によって所望のパターンで基体
表面に塗布する。膜厚はスクリーンのマスク部厚さを選
択したり、重ね塗りしたりして調整できる。その後、こ
の磁性被膜に紫外線もしくは電子線を照射して硬化させ
る。In addition, in the case of manufacturing a magnet that is used by forming it into a paste and then hardening it, the steps up to mixing and kneading are carried out in the same way as in the case of the magnet that is used by attaching it after being hardened, and the resulting paste is printed by screen printing. Coat the substrate surface in the desired pattern. The film thickness can be adjusted by selecting the thickness of the mask part of the screen or by overcoating. Thereafter, this magnetic coating is cured by irradiating it with ultraviolet rays or electron beams.
以下、本発明を実施例と比較例により更に詳細に説明す
る。Hereinafter, the present invention will be explained in more detail with reference to Examples and Comparative Examples.
実施例１
磁性合金粉末としてＳｍＣｏ５ （ＳｍＣｏ、系、平均
粒径７μｍ）およびＳｍ（Ｃｏｏ、 ｈｂＦｅｏ、 ｚ
＋ｃｕｏ、 ｏａＴｉｏ、 ａｓ） ｓ、 ｚ（Ｓｍ２
Ｃｏｔｔ系、平均粒径２８７７１１１）各々５０ｇに対
して、合成樹脂として不飽和ポリエステル樹脂（紫外線
硬化型）２．５ｇ、光反応開始剤としてペンゾフヱノン
０．３ｇを加え乳鉢中で混練した。続いて、これらの混
練物を成形型中に装入し、１３ｋｏｅの磁場を加えなが
ら圧力約５ｔｏｎ／ｃｄで圧縮成形した。この際、成形
型は６鶴ｘ４ｍｍＸ１３ｍｍの角柱状のものを使用し、
磁場の印加力向は型の長手方向である。この圧縮成形で
得られた試料に紫外線（高圧水銀灯５ｋＷ）を５秒間照
射することにより固化した。Example 1 SmCo5 (SmCo, system, average particle size 7 μm) and Sm(Coo, hbFeo, z) were used as magnetic alloy powders.
+cuo, oaTio, as) s, z(Sm2
Cott type, average particle size: 2877111) 2.5 g of unsaturated polyester resin (ultraviolet curable type) as a synthetic resin and 0.3 g of penzophenone as a photoreaction initiator were added to 50 g of each, and kneaded in a mortar. Subsequently, these kneaded products were charged into a mold and compression molded at a pressure of about 5 ton/cd while applying a magnetic field of 13 koe. At this time, a prismatic mold of 6 cranes x 4 mm x 13 mm was used.
The applied force direction of the magnetic field is the longitudinal direction of the mold. The sample obtained by compression molding was solidified by irradiating it with ultraviolet light (high-pressure mercury lamp 5 kW) for 5 seconds.
得られた合成樹脂磁石の磁気特性および抗折力を測定し
、その結果を第１表に示す。The magnetic properties and transverse rupture strength of the obtained synthetic resin magnet were measured, and the results are shown in Table 1.
なお、抗折力の測定は、ＪＩＳ Ｂ ７７０４に基づい
て行なった。Note that the transverse rupture strength was measured based on JIS B 7704.
実施例２
合成樹脂としてポリウレタンアクリレート（電子線硬化
型）２．５ｇを用い、光反応開始剤を用いなかった以外
は、実施例１と同様にして圧縮成形した。得られた試料
に電子線加速器で電子線を５秒間照射することにより固
化した。Example 2 Compression molding was carried out in the same manner as in Example 1, except that 2.5 g of polyurethane acrylate (electron beam curing type) was used as the synthetic resin and no photoinitiator was used. The obtained sample was solidified by irradiating an electron beam for 5 seconds with an electron beam accelerator.
得られた合成樹脂磁石につき、実施例１と同様に測定し
、その結果を第１表に示す。The obtained synthetic resin magnet was measured in the same manner as in Example 1, and the results are shown in Table 1.
比較例１
合成樹脂としてビスフェノールＡ型ノボラックエポキシ
樹脂（熱硬化性）３ｇにアデカハードナ−ＥＩＩＩＯＩ
（旭電化工業社商品名、硬化剤）Ｉｇ、ｎ−ブチル
グリシジルエーテル（希釈剤）０．５ｇを添加したもの
を用い、光反応開始剤を用いなかった以外は、実施例１
と同様にして圧縮成形した。Comparative Example 1 Adeka Hardener EIIIOI was added to 3 g of bisphenol A type novolac epoxy resin (thermosetting) as a synthetic resin.
(Asahi Denka Kogyo Co., Ltd. trade name, curing agent) Example 1 except that 0.5 g of Ig and n-butyl glycidyl ether (diluent) were added and no photoinitiator was used.
Compression molding was performed in the same manner as above.
得られた試料を乾燥器中で１２０℃、２時間加熱するこ
とにより固化した。The obtained sample was solidified by heating at 120° C. for 2 hours in a dryer.
得られた合成樹脂磁石につき、実施例１と同様に測定し
、その結果を第１表に示す。The obtained synthetic resin magnet was measured in the same manner as in Example 1, and the results are shown in Table 1.
実施例３
磁性合金粉末としてＳｍＣｏ５ （ＳｍＣｏｓ系、平均
粒径２μｍ）およびＳｍ（Ｃｏｏ、 ｂｂＦｅｏ、 ｚ
＋ｃｕｏ、 ｏｓＴｊｏ、 ｏｓ） ａ、 ｚ（Ｓｍ２
Ｃｏ＋、系、平均粒径２μｍ）各々５０ｇに対して、合
成樹脂として不飽和ポリエステル樹脂（紫外線硬化型）
１５ｇ、光反応開始剤としてアセトフェノン１．８ｇを
加え三軸ロールで混練した。得られたペーストは、３０
龍角のアルミナ基板上に１０鶴角のパターン面を印刷塗
布した。その後、この被膜に紫外線（高圧水銀灯５ｋＷ
）を５秒間照射することにより固化した。Example 3 SmCo5 (SmCos system, average particle size 2 μm) and Sm(Coo, bbFeo, z) were used as magnetic alloy powders.
+cuo, osTjo, os) a, z(Sm2
Unsaturated polyester resin (ultraviolet curable type) as a synthetic resin for 50 g of each Co + type, average particle size 2 μm)
15 g and 1.8 g of acetophenone as a photoreaction initiator were added and kneaded with a three-screw roll. The paste obtained was 30
A pattern surface of 10 Tsuru-kaku was printed and coated on a Ryukaku alumina substrate. After that, this coating was coated with ultraviolet light (high-pressure mercury lamp 5kW).
) was solidified by irradiation for 5 seconds.
次いでこのアルミナ基板から５１１角の磁性被膜を切り
取り、コンデンサー式着脱磁電源装置でパルス着磁を行
なった。Next, a 511 square magnetic coating was cut from this alumina substrate, and pulsed magnetization was performed using a capacitor-type magnetization/demagnetization power supply.
得られた合成樹脂磁石の磁気特性を測定し、その結果を
第２表に示す。The magnetic properties of the obtained synthetic resin magnet were measured, and the results are shown in Table 2.
第２表
実施例４
合成樹脂としてポリウレタンアクリレート（電子線硬化
型）１５ｇを用い、光反応開始剤を用いなかった以外は
、実施例３と同様にして印刷塗布した。その後、この被
膜に電子線加速器で電子線を５秒間照射することにより
固化した。次いで、実施例３と同様にして着磁を行ない
、得られた合成樹脂磁石の磁気特性を測定し、その結果
を第２表に示す。Table 2 Example 4 Printing and coating were carried out in the same manner as in Example 3, except that 15 g of polyurethane acrylate (electron beam curing type) was used as the synthetic resin and no photoinitiator was used. Thereafter, this film was solidified by irradiating it with an electron beam for 5 seconds using an electron beam accelerator. Next, magnetization was carried out in the same manner as in Example 3, and the magnetic properties of the obtained synthetic resin magnets were measured, and the results are shown in Table 2.
比較例２
合成樹脂としてビスフェノールＡ型ノボラックエポキシ
樹脂（熱硬化性）８ｇにアデカハードナ−［１１１０１
（旭電化工業社商品名、硬化剤）３ｇ、ｎ−ブチルグリ
シジルエーテル（希釈剤）４ｇを添加したものを用い、
光反応開始剤を用いなかった以外は、実施例３と同様に
して印刷塗布した後、１００℃、３０分間加熱すること
により固化した。Comparative Example 2 Adeka Hardener [11101
(Asahi Denka Kogyo Co., Ltd. trade name, hardening agent) 3g, n-butyl glycidyl ether (diluent) 4g was added,
After printing and coating in the same manner as in Example 3 except that no photoinitiator was used, the coating was solidified by heating at 100° C. for 30 minutes.
次いで、実施例３と同様にして着磁を行ない、得られた
合成樹脂磁石の磁気特性を測定し、その結果を第セ表に
示す。Next, magnetization was carried out in the same manner as in Example 3, and the magnetic properties of the obtained synthetic resin magnet were measured, and the results are shown in Table 1.
以上から明らかなように、本発明は、生産性が高いのみ
ならず、広範囲の用途に供し得る磁気特性の優れた合成
樹脂磁石を提供するものである。As is clear from the above, the present invention provides a synthetic resin magnet that is not only highly productive but also has excellent magnetic properties that can be used in a wide range of applications.
Claims (1)
ダーである合成樹脂とからなる合成樹脂磁石において、
該合成樹脂が紫外線硬化型樹脂または電子線硬化型樹脂
であることを特徴とする合成樹脂磁石。(1) In a synthetic resin magnet made of magnetic alloy powder containing rare earth elements and a synthetic resin as its binder,
A synthetic resin magnet, wherein the synthetic resin is an ultraviolet curable resin or an electron beam curable resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61258330A JPS63114107A (en) | 1986-10-31 | 1986-10-31 | Synthetic resin magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61258330A JPS63114107A (en) | 1986-10-31 | 1986-10-31 | Synthetic resin magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63114107A true JPS63114107A (en) | 1988-05-19 |
Family
ID=17318747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61258330A Pending JPS63114107A (en) | 1986-10-31 | 1986-10-31 | Synthetic resin magnet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63114107A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009154564A (en) * | 2007-12-25 | 2009-07-16 | Fujikura Ltd | Lever shaft position detecting device |
| WO2010006573A2 (en) * | 2008-07-17 | 2010-01-21 | Schaeffler Kg | Bearing and motor comprising a magnet |
-
1986
- 1986-10-31 JP JP61258330A patent/JPS63114107A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009154564A (en) * | 2007-12-25 | 2009-07-16 | Fujikura Ltd | Lever shaft position detecting device |
| WO2010006573A2 (en) * | 2008-07-17 | 2010-01-21 | Schaeffler Kg | Bearing and motor comprising a magnet |
| WO2010006573A3 (en) * | 2008-07-17 | 2010-03-11 | Schaeffler Kg | Bearing and motor comprising a magnet |
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