JP5918955B2 - Composite magnetic body, evaluation method of mixed state thereof, and reactor - Google Patents
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- 239000002131 composite material Substances 0.000 title claims description 48
- 238000011156 evaluation Methods 0.000 title claims description 7
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- 238000000034 method Methods 0.000 claims description 20
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000012937 correction Methods 0.000 description 1
- 238000002296 dynamic light scattering Methods 0.000 description 1
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Description
本発明は、電気自動車やハイブリッド自動車等の車体駆動動力用モーターの電力変換装置であるインバータの昇圧回路などに用いられ、大電流を通電して使用するリアクトル等に用いられる複合磁性体およびその混合状態の評価方法、並びにリアクトルに関する。 The present invention is used in a booster circuit of an inverter that is a power conversion device for a vehicle driving power motor such as an electric vehicle or a hybrid vehicle, and is used for a reactor or the like used by energizing a large current and a mixture thereof. The present invention relates to a state evaluation method and a reactor.
複合磁性体は、磁性粉末と樹脂などの結合剤を混合して用いられる事が一般的である。磁性粉末と結合材との混合の際、磁性粉末と結合材が均一に分散されていないと、複合磁性体は所望する特性が得られないという問題があるため、磁性粉末と結合剤とが均一に分散されている事が重要である。 The composite magnetic body is generally used by mixing magnetic powder and a binder such as resin. When the magnetic powder and the binder are mixed, the magnetic powder and the binder are not uniform because there is a problem that the desired properties cannot be obtained unless the magnetic powder and the binder are uniformly dispersed. It is important that they are distributed.
従来、二つの物質の混合が十分か否かを確認する方法として、磁性粉末と樹脂を混合した後、スラリーの各箇所からサンプリングしたもので試作品を作製して物性を評価する方法や、作製した製品の一部を評価対象として取り出し評価する方法がとられている。しかし、これらの方法では、サンプリングや試作品の作製に工数がかかり、また、評価にも時間がかかる為、製造コストに影響していた。 Conventionally, as a method of confirming whether mixing of two substances is sufficient, after mixing magnetic powder and resin, a method of producing a prototype by sampling from each part of the slurry and evaluating physical properties, A method has been adopted in which a part of the product is taken out as an evaluation target and evaluated. However, these methods require man-hours for sampling and production of prototypes, and also take time for evaluation, which affects the manufacturing cost.
二つの物質の混合が十分か否かを確認できれば、試作品を作製して物性を評価する工程を削減することが可能なため、二つの物質の混合を視認できる方法として、例えば、特許文献１に開示された方法が知られている。特許文献１では、主剤と硬化剤とを混合して硬化させる二液型接着剤において、主剤と硬化剤とが相互に補色の関係をなすように着色することで、主剤と硬化剤とが均一に混合されたことを確認している。
If it is possible to confirm whether or not the mixing of two substances is sufficient, it is possible to reduce the process of producing a prototype and evaluating physical properties. For example,
また、マグネットブロックにおける、磁性粉とバインダの混合状態を評価する方法として、顔料を混ぜることで、顔料が磁性粉とバインダの混合状態を評価する際にマーカーの役割を果たし、それによって混合状態を確認する方法が特許文献２に開示されている。
In addition, as a method of evaluating the mixed state of magnetic powder and binder in the magnet block, the pigment plays the role of a marker when evaluating the mixed state of magnetic powder and binder by mixing the pigment. A method of confirming is disclosed in
しかしながら、相互に補色の関係をなすように着色する場合、着色を行う物質の色によって、相互に補色となるように色の調整を行うことは困難であり、また、二つの物質に着色を行わなければならないため、工数が増えるという課題がある。 However, when coloring in a complementary color relationship, it is difficult to adjust the colors so that they are complementary to each other depending on the color of the material to be colored, and the two materials are colored. Therefore, there is a problem that man-hours increase.
また、一方に着色を行うことで混合状態の確認を行う場合、濃く着色しないと明瞭に識別することが困難であるという課題がある。さらに、濃く着色するために着色剤の添加量が増えるなどの影響により、複合磁性体の特性が悪くなるという課題がある。 Moreover, when confirming a mixing state by coloring one side, there exists a subject that it is difficult to identify clearly, unless it colors deeply. Furthermore, there is a problem in that the properties of the composite magnetic material are deteriorated due to an influence such as an increase in the amount of the colorant added for deep coloring.
そこで本発明は、試作品の作製を不要とすることで優れた生産性を有し、磁気特性の優れた複合磁性体およびその混合状態の評価方法、並びにリアクトルを提供することを目的とする。 Accordingly, an object of the present invention is to provide a composite magnetic body having excellent productivity by eliminating the need for producing a prototype, an evaluation method of a mixed state thereof, and a reactor, and a reactor.
上記の課題を解決するために、本発明の複合磁性体は、バインダと蛍光物質と磁性粉末を備え、リアクトルに用いることを特徴とする。また、本発明のリアクトルは、本発明の複合磁性体と、導線を螺旋状に巻回したコイルとを備え、前記複合磁性体は前記コイルの内側および外側に充填されて硬化していることを特徴とする。また、本発明のリアクトルは、バインダと蛍光物質と磁性粉末を備えた複合磁性体と、導線を螺旋状に巻回したコイルとを備え、前記複合磁性体は前記コイルの内側および外側に充填されて硬化していることを特徴とする。 In order to solve the above problems, the composite magnetic body of the present invention includes a binder and a fluorescent substance and a magnetic powder, you characterized by the use in the reactor. Also, the reactor of the present invention, a composite magnetic body of the present invention, a coil wound a conducting wire spirally, said composite magnetic body has cured is filled inside and outside of the coil Features. The reactor of the present invention includes a composite magnetic body including a binder, a fluorescent material, and magnetic powder, and a coil in which a conductive wire is spirally wound, and the composite magnetic body is filled inside and outside the coil. It is characterized by being cured.
蛍光物質はＸ線や紫外線、可視光線などの電磁波を照射されることで、蛍光物質自体が発光するため、発光している蛍光物質と磁性粉末などの発光しない物質とを発光の有無によって明瞭に識別することが可能となる。そのため目視または顕微鏡などで観察することによって、蛍光物質の分布を把握でき、バインダと磁性粉末とが均一に撹拌されたかどうかを判別できる。 The fluorescent substance emits light when irradiated with electromagnetic waves such as X-rays, ultraviolet rays, and visible rays. Therefore, the fluorescent substance and the non-luminescent substance such as magnetic powder can be clearly distinguished depending on the presence or absence of light emission. It becomes possible to identify. Therefore, by observing visually or with a microscope, the distribution of the fluorescent substance can be grasped, and it can be determined whether or not the binder and the magnetic powder are uniformly stirred.
また、蛍光物質を混ぜることによって、バインダと磁性粉末を混合してスラリーを作製する工程において、バインダと磁性粉末とが均一に撹拌されたかどうかを、蛍光物質の分布を把握することによって判別することができる。 Also, by mixing the fluorescent material, in the process of preparing the slurry by mixing the binder and the magnetic powder, it is determined by grasping the distribution of the fluorescent material whether the binder and the magnetic powder are uniformly stirred. Can do.
また、本発明のリアクトルにおける前記複合磁性体の前記蛍光物質は蛍光粒子であることが望ましい。 Moreover, it is desirable that the fluorescent substance of the composite magnetic body in the reactor of the present invention is a fluorescent particle.
蛍光物質が蛍光粒子であることによって、画像解析などによって発光点の数を計測し、単位面積あたりの蛍光粒子の数を把握して蛍光粒子の分布密度を定量化できるため、任意の場所に於けるバインダと磁性粉末との混合状態を比較確認できる。 Since the fluorescent substance is a fluorescent particle, the number of emission points can be measured by image analysis, etc., and the number of fluorescent particles per unit area can be grasped to quantify the distribution density of the fluorescent particles. The mixed state of the binder and magnetic powder can be compared and confirmed.
また、本発明のリアクトルにおける前記複合磁性体の蛍光粒子の平均粒子径は、０．１μｍ〜１０．０μｍであることが望ましい。 The average particle size of the fluorescent particles of the composite magnetic material in the reactor of the present invention is preferably 0.1 μm to 10.0 μm.
平均粒子径とは動的光散乱法にて蛍光粒子を測定した平均値のことである。 The average particle diameter is an average value obtained by measuring fluorescent particles by a dynamic light scattering method.
また、本発明によるリアクトルの評価方法は、前記複合磁性体に前記蛍光粒子を励起する波長の電磁波を照射し、単位面積当たりの発光点の数を計測し、前記複合磁性体の混合状態を評価することを特徴とする。 In the reactor evaluation method according to the present invention , the composite magnetic body is irradiated with an electromagnetic wave having a wavelength for exciting the fluorescent particles, the number of light emitting points per unit area is measured, and the mixed state of the composite magnetic body is evaluated. It is characterized by doing.
混合された蛍光粒子は、磁性粉末に隠れていて目視できないもの、複合磁性体の表面に出ていて目視できるもの、目視はできるがバインダに埋没しているものと様々であるが、複合磁性体の表面からの深さが深いほど、照射する電磁波は減衰するため、蛍光粒子の発光が弱まり輝度は低くなる。そのため、輝度によって発光粒子の位置を把握することが可能であり、定量化に用いる蛍光粒子を定める事ができる。つまり、発光点の数を計測する複合磁性体の表面からの深さは任意に設定でき、その中に存在する蛍光粒子を定量化に用いればよい。 The mixed fluorescent particles are various, such as those that are hidden behind the magnetic powder and cannot be visually observed, those that are visible on the surface of the composite magnetic body, and those that are visible but embedded in the binder. As the depth from the surface increases, the applied electromagnetic wave attenuates, so that the emission of the fluorescent particles is weakened and the luminance is lowered. Therefore, it is possible to grasp the position of the luminescent particles based on the luminance, and the fluorescent particles used for quantification can be determined. That is, the depth from the surface of the composite magnetic material for measuring the number of light emitting points can be arbitrarily set, and the fluorescent particles present therein can be used for quantification.
本発明によれば、バインダと磁性材料に蛍光物質を含有して混合させることによって、発光しない物質と発光する蛍光物質とを蛍光物質の発光の有無によって明瞭に識別することが可能である。それによって、混合状態を目視や顕微鏡などで確認できるため、混合状態の確認のために試作品を作製する工程を削減することができる。また、蛍光物質の混合状態を容易に把握することが可能なため、混合が不均一な状態で製品を作成することがなくなり、磁気特性の優れた複合磁性体を得る事ができる。 According to the present invention, it is possible to clearly distinguish between a substance that does not emit light and a fluorescent substance that emits light by the presence or absence of light emission of the fluorescent substance by mixing and mixing the binder and magnetic material with the fluorescent substance. Thereby, since the mixed state can be confirmed visually or with a microscope, it is possible to reduce the process of producing a prototype for confirmation of the mixed state. Further, since it is possible to easily grasp the mixed state of the fluorescent substance, it is not necessary to produce a product in a state where the mixing is not uniform, and a composite magnetic body having excellent magnetic properties can be obtained.
以上のことより、試作品の作製を不要とすることで優れた生産性を有し、磁気特性の優れた複合磁性体およびその混合状態の評価方法、並びにリアクトルが得られる。 From the above, it is possible to obtain a composite magnetic body having excellent productivity by eliminating the production of a prototype, and having excellent magnetic properties, a method for evaluating the mixed state, and a reactor.
以下、本発明の実施の形態について、詳細に説明する。 Hereinafter, embodiments of the present invention will be described in detail.
（実施の形態１）
本発明の複合磁性体は、磁性粉末と、バインダである熱硬化性の液体樹脂と、蛍光粒子からなり、磁性粉末と、熱硬化性の液体樹脂と、蛍光粒子を混合して、これらを均一に分散させることで得られる。
(Embodiment 1)
The composite magnetic body of the present invention is composed of magnetic powder, a thermosetting liquid resin as a binder, and fluorescent particles. The magnetic powder, the thermosetting liquid resin, and fluorescent particles are mixed and uniformly mixed. It is obtained by dispersing in
熱硬化性の樹脂はスラリーとしたときの流動性が十分であるため低粘度のものが好ましく、例えばエポキシ樹脂や、シリコーン樹脂などが望ましい。また、混合方法としては、従来公知の方法を用いることができる。すなわち、連続混合方式でもバッチ混合方式でも良く、樹脂と磁性粉末と蛍光粒子を混合できれば特に制限はない。 The thermosetting resin preferably has a low viscosity because it has sufficient fluidity when made into a slurry. For example, an epoxy resin or a silicone resin is desirable. As a mixing method, a conventionally known method can be used. That is, either a continuous mixing method or a batch mixing method may be used, and there is no particular limitation as long as the resin, magnetic powder, and fluorescent particles can be mixed.
また、本発明における蛍光粒子は、発光現象が起こるものであれば特に制限されないが、磁性粉末や樹脂の色と区別しやすく、コントラストのはっきりと出る色であることが望ましい。例えば、灰色の磁性粉末の場合、赤や黄色などの色であることが望ましい。 The fluorescent particles in the present invention are not particularly limited as long as a light emission phenomenon occurs. However, it is desirable that the fluorescent particles have a clear contrast that is easily distinguishable from the colors of magnetic powder and resin. For example, in the case of gray magnetic powder, it is desirable to have a color such as red or yellow.
液状の樹脂に蛍光粒子を混合させる場合に、蛍光粒子の平均粒子径が小さすぎると、粉体の一般的な性質として液状の樹脂への分散性が悪くなる。また、視認性の観点からも、蛍光粒子が小さすぎると高倍率の顕微鏡下での観察が必要となり簡便性が低下する。液状樹脂への分散性の悪化を抑制し、視認の際の簡便性の低下を防止するため、本発明における蛍光粒子の平均粒子径は０．１μｍ以上が望ましい。 When the fluorescent particles are mixed with the liquid resin, if the average particle diameter of the fluorescent particles is too small, dispersibility in the liquid resin is deteriorated as a general property of the powder. Also, from the viewpoint of visibility, if the fluorescent particles are too small, observation under a high-magnification microscope is required and convenience is reduced. The average particle diameter of the fluorescent particles in the present invention is preferably 0.1 μm or more in order to suppress the deterioration of the dispersibility in the liquid resin and prevent the deterioration of the ease of visual recognition.
また、本発明によれば、単位面積当たりの蛍光粒子の個数により混合度合いを評価できる分解能が決定されるが、例えば、１ｍｍ四方あたりに１００個の粒子が存在すれば、概ね０．１ｍｍの領域レベルでの均一性が評価できる。ここで、粒子の大きさが大きすぎると粒子の個数は同じでも粒子が占める体積が増加するため複合磁性体として必要な磁性粒子を配合できる体積が小さくなり磁気的な性能の低下を生じるため、蛍光粒子の大きさは１０．０μｍ以下が望ましい。 Further, according to the present invention, the resolution capable of evaluating the degree of mixing is determined by the number of fluorescent particles per unit area. For example, if there are 100 particles per 1 mm square, the resolution is approximately 0.1 mm. Uniformity at the level can be evaluated. Here, if the size of the particles is too large, the volume occupied by the particles increases even if the number of particles is the same, so the volume that can be blended with the magnetic particles required as a composite magnetic material is reduced, resulting in a decrease in magnetic performance The size of the fluorescent particles is preferably 10.0 μm or less.
（実施の形態２）
本発明の複合磁性体のバインダが、主剤と硬化剤とからなる２液性の樹脂の場合、主剤または硬化剤のいずれか一方に蛍光粒子を混合させて、予め蛍光粒子を均一に分散させておく。その後、蛍光粒子を混合していない樹脂の他方と磁性粉末とともに混合して、これらを均一に分散させることで、複合磁性体が得られる。
(Embodiment 2)
When the binder of the composite magnetic material of the present invention is a two-component resin composed of a main agent and a curing agent, fluorescent particles are mixed in advance with either the main agent or the curing agent, and the fluorescent particles are uniformly dispersed in advance. deep. Thereafter, the other of the resin not mixed with the fluorescent particles is mixed with the magnetic powder, and these are uniformly dispersed to obtain a composite magnetic body.
ここで、図１は本発明の複合磁性体において混合が均一な場合の模式図である。図１に示すように、蛍光粒子である蛍光物質１と磁性粉末２と２液性の樹脂であるバインダ３とから構成され、蛍光物質１が均一に分散している様子から、主剤および硬化剤が均一に混ざり合っていることがわかる。一方、図２は本発明の複合磁性体において混合が不均一な場合の模式図である。図２に示すように、蛍光物質１が均一に分散されておらず、主剤および硬化剤が均一に混ざりあっていないことがわかる。
Here, FIG. 1 is a schematic view when the mixing is uniform in the composite magnetic body of the present invention. As shown in FIG. 1, it is composed of a
このように２液性の樹脂の場合、主剤と硬化剤とが均一に混ざり合っていないと、軟化温度や弾性率等の硬化物の所望する特性が得られないなどの問題や、硬化しないなどの問題が生じる場合がある。そのため、樹脂の主剤または硬化剤のいずれか一方に、予め蛍光粒子を均一に分散させておくことで、樹脂の主剤および硬化剤の混合状態の確認を行うことも可能となる。 Thus, in the case of a two-component resin, if the main agent and the curing agent are not mixed uniformly, problems such as the desired properties of the cured product such as the softening temperature and the elastic modulus cannot be obtained, and the resin does not cure. May cause problems. For this reason, it is possible to confirm the mixed state of the resin main agent and the curing agent by previously uniformly dispersing the fluorescent particles in either the resin main agent or the curing agent.
また、硬化剤に蛍光粒子を分散させる場合、硬化剤に対して蛍光粒子は少量であるため簡易的な１軸撹拌機などで容易に分散可能であるが、選択した蛍光粒子の真密度が硬化剤の密度に対して極端に高く、かつ粒子径が大きい場合は、時間の経過にともない蛍光粒子が沈降し、均一でなくなる可能性がある。そのため、磁性粉末と混合する際には、再度撹拌してから用いる事が好ましい。 In addition, when the fluorescent particles are dispersed in the curing agent, since the fluorescent particles are small relative to the curing agent, they can be easily dispersed with a simple uniaxial stirrer or the like, but the true density of the selected fluorescent particles is cured. When the density is extremely high with respect to the density of the agent and the particle diameter is large, there is a possibility that the fluorescent particles settle with time and become non-uniform. Therefore, when mixing with magnetic powder, it is preferable to use after stirring again.
この際、一般的なエポキシ樹脂の密度は１ｇ／ｃｍ３程度であるため、樹脂ベースの蛍光粒子を使用する場合、真密度が０．８〜１．５ｇ／ｃｍ３程度である事が望ましい。これによって、蛍光粒子が沈降することを抑制する事ができる。また、セラミック系がベースの蛍光粒子の場合、真密度が２〜４ｇ／ｃｍ３程度と高く、粒子径が大きすぎると沈降しやすくなるため、粒子径は２〜３μｍ以下であることが望ましい。 In this case, the density of a typical epoxy resin is about 1 g / cm 3, when using a resin-based fluorescent particles, it is preferable true density of about 0.8 to 1.5 g / cm 3. Thereby, it is possible to suppress the sedimentation of the fluorescent particles. In the case of fluorescent particles based on a ceramic system, the true density is as high as about 2 to 4 g / cm 3 , and if the particle size is too large, the particles are liable to settle.
（実施の形態３）
本発明の複合磁性体のバインダが、主剤と硬化剤とからなる２液性の樹脂の場合、主剤と硬化剤のそれぞれに、別の波長を有する蛍光粒子を混合させて、予め蛍光粒子を均一に分散させておく。その後、主剤と硬化剤を磁性粉末とともに混合することで複合磁性体が得られる。
(Embodiment 3)
When the binder of the composite magnetic material of the present invention is a two-component resin composed of a main agent and a curing agent, fluorescent particles having different wavelengths are mixed in each of the main agent and the curing agent, and the fluorescent particles are made uniform in advance. To disperse. Then, a composite magnetic body is obtained by mixing a main ingredient and a hardening | curing agent with a magnetic powder.
主剤と硬化剤にそれぞれ異なる波長を有する蛍光粒子を分散させて作製した複合磁性体に蛍光粒子を励起する波長の電磁波を照射し、蛍光粒子を発光させる。蛍光粒子から放出される波長は主剤と硬化剤でそれぞれ異なるため、その波長情報を取得することで、主剤と硬化剤に含まれる蛍光粒子をそれぞれに分けることが可能となり、それぞれの混合状態を確認できるため、均一性の評価が可能となる。 The composite magnetic material prepared by dispersing fluorescent particles having different wavelengths in the main agent and the curing agent is irradiated with electromagnetic waves having a wavelength that excites the fluorescent particles, thereby causing the fluorescent particles to emit light. Since the wavelength emitted from the fluorescent particles differs between the main agent and the curing agent, it is possible to separate the fluorescent particles contained in the main agent and the curing agent by acquiring the wavelength information, and check the mixing state of each As a result, uniformity can be evaluated.
（実施の形態４）
本発明のリアクトルは、導線を螺旋状に巻回したコイルを型の内部に配し、本発明による複合磁性体のスラリーを型に注型し、硬化させることで得られる。もちろん、予め巻き芯となりうる形状で硬化した複合磁性体を形成しておき、これに巻線を施した後、型の内部に配して空間となっている部分へ本発明による複合磁性体のスラリーを注型し、硬化させても良い。
(Embodiment 4)
The reactor of the present invention is obtained by placing a coil in which a conductive wire is spirally wound inside a mold, casting a slurry of the composite magnetic material according to the present invention into the mold, and curing it. Of course, a composite magnetic body that has been hardened in a shape that can be used as a winding core is formed in advance, and after winding this, the composite magnetic body according to the present invention is placed inside the mold to form a space. The slurry may be cast and cured.
（実施の形態５）
本発明の複合磁性体の混合状態の評価方法は、磁性粉末と、バインダと、蛍光粒子からなる複合磁性体に蛍光粒子を励起する波長の電磁波を照射し、蛍光粒子を発光させる。蛍光粒子を発光させた状態で目視、または顕微鏡によって観察することで、蛍光粒子が均一に分布しているか否かがわかる。それによって、磁性粉末と、バインダと、蛍光粒子の混合状態を把握できる。また、蛍光粒子を発光させた状態で画像解析を行い、単位面積あたりの発光点の数を計測することで、蛍光粒子の分布密度を定量化できる。蛍光粒子の分布密度を定量化することによって、任意の場所における蛍光粒子の分布を比較確認できる。
(Embodiment 5)
In the method for evaluating the mixed state of the composite magnetic body of the present invention, the composite magnetic body composed of magnetic powder, binder, and fluorescent particles is irradiated with electromagnetic waves having a wavelength that excites the fluorescent particles, thereby causing the fluorescent particles to emit light. Whether the fluorescent particles are uniformly distributed can be determined by observing the fluorescent particles visually or by a microscope. Thereby, the mixed state of the magnetic powder, the binder, and the fluorescent particles can be grasped. Further, the distribution density of the fluorescent particles can be quantified by performing image analysis in a state where the fluorescent particles emit light and measuring the number of light emitting points per unit area. By quantifying the distribution density of the fluorescent particles, the distribution of the fluorescent particles at an arbitrary place can be compared and confirmed.
さらに、実施の形態２または実施の形態３のように、主剤若しくは硬化剤、または主剤と硬化剤の両方に蛍光粒子を混合させて複合磁性体を作製する場合、主剤または硬化剤の配合比率が正しいかどうかの定量的な判断も可能である。また、どの程度の領域での混合状態を確認するか、つまり蛍光粒子の配合比率をどの程度にするかは、複合磁性体の特性などから勘案して、適宜、決定すればよい。 Furthermore, when the composite magnetic material is produced by mixing fluorescent particles in the main agent or the curing agent, or both the main agent and the curing agent, as in the second embodiment or the third embodiment, the mixing ratio of the main agent or the curing agent is It is also possible to quantitatively determine whether it is correct. Further, what region the mixed state is to be confirmed, that is, what is the blending ratio of the fluorescent particles, may be appropriately determined in consideration of the characteristics of the composite magnetic material.
また、混合された蛍光粒子には、磁性粉末に隠れていて目視できないもの、複合磁性体の表面に出ていて目視できるもの、目視はできるがバインダに埋没しているものと様々である。バインダが透明や半透明の樹脂である場合、蛍光粒子の分布を確認して定量化する際に、発光点のみの数を計測すると、複合磁性体の表面に出ている蛍光粒子の分布密度のみ確認したいところを、樹脂に埋設している蛍光粒子までいれてしまうことで、定量化を行う際の妨げになる恐れがある。しかし、複合磁性体の表面からの深さが深いほど、照射する電磁波は減衰するため、蛍光粒子の発光が弱まり、輝度は低くなる。そのため、輝度によって発光粒子の位置を把握することによって、定量化に用いる蛍光粒子を絞る事が可能となり、その蛍光粒子の発光点の分布のみを得る事で正確な定量化ができる。 In addition, the mixed fluorescent particles are various such as those that are hidden behind the magnetic powder and cannot be seen, those that are visible on the surface of the composite magnetic material, and those that are visible but buried in the binder. When the binder is a transparent or translucent resin, when the number of luminescent spots is counted when checking and quantifying the distribution of fluorescent particles, only the distribution density of fluorescent particles on the surface of the composite magnetic material If the fluorescent particles embedded in the resin are put in the place to be confirmed, there is a risk of hindering quantification. However, as the depth from the surface of the composite magnetic material is deeper, the applied electromagnetic wave is attenuated, so that the emission of the fluorescent particles is weakened and the luminance is lowered. Therefore, it is possible to narrow down the fluorescent particles used for quantification by grasping the position of the luminescent particles based on the luminance, and accurate quantification can be performed by obtaining only the distribution of the luminescent points of the fluorescent particles.
以上より、バインダと磁性材料に蛍光物質を含有して混合させることによって、発光しない物質と発光する蛍光物質とを蛍光物質の発光の有無によって明瞭に識別することが可能であるため、混合状態を目視や顕微鏡などで確認でき、試作品の作製を不要とすることで優れた生産性を有し、磁気特性の優れた複合磁性体およびその混合状態の評価方法、並びにリアクトルが得られる。 As described above, since the binder and the magnetic material are mixed and mixed with the fluorescent material, the substance that does not emit light and the fluorescent substance that emits light can be clearly distinguished by the presence or absence of light emission of the fluorescent substance. It can be confirmed by visual observation or a microscope, and it is possible to obtain a composite magnetic body having excellent productivity by making it unnecessary to produce a prototype, an excellent magnetic property, a method for evaluating the mixed state, and a reactor.
ここで、発光粒子の位置を把握する輝度の設定や蛍光粒子の発光性能、照射する電磁波の強度、距離、角度および波長成分などは、適宜、決定すればよい。 Here, the luminance setting for grasping the position of the luminescent particles, the light emission performance of the fluorescent particles, the intensity, distance, angle, wavelength component, etc. of the irradiated electromagnetic wave may be determined as appropriate.
以上、本発明の実施の形態を説明したが、本発明は、上記に限定されるものではなく、本発明の要旨を逸脱しない範囲で、構成の変更や修正の変更が可能である。すなわち、当業者であれば成し得るであろう各種変形、修正もまた本発明に含まれることは勿論である。 Although the embodiment of the present invention has been described above, the present invention is not limited to the above, and the configuration can be changed or modified without departing from the gist of the present invention. That is, it is a matter of course that various modifications and corrections that can be made by those skilled in the art are also included in the present invention.
１ 蛍光物質
２ 磁性粉末
３ バインダ
1
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