JPH06215930A - Electrically-insulated coated body and manufacturing method thereof - Google Patents
Electrically-insulated coated body and manufacturing method thereofInfo
- Publication number
- JPH06215930A JPH06215930A JP2060693A JP2060693A JPH06215930A JP H06215930 A JPH06215930 A JP H06215930A JP 2060693 A JP2060693 A JP 2060693A JP 2060693 A JP2060693 A JP 2060693A JP H06215930 A JPH06215930 A JP H06215930A
- Authority
- JP
- Japan
- Prior art keywords
- electrically insulating
- metal body
- insulating layer
- layer
- insulating
- 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
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Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
(57)【要約】
【目的】 モータコア等の金属体平坦部の絶縁層厚さを
厚くすることなく角部を含む角部近傍の絶縁層厚さを厚
くし、絶縁層の厚み斑を可及的に少なくできる電気絶縁
塗装体の製造方法を提供する。
【構成】 角部を有する金属体２０の表面が電気絶縁塗
料等の絶縁層によって覆われた電気絶縁塗装体を製造す
る際に、該金属体２０の少なくとも角部を含む角部近傍
の部位に、電気絶縁性粒子であるリン酸マンガン粒子を
析出せしめ前記部位を凹凸面とした後、前記凹凸面を含
む金属体２０の表面に電気絶縁塗料を塗布し、リン酸マ
ンガン粒子から成る粒子層１０と電気絶縁塗料から成る
塗膜２６とによって絶縁層を形成することを特徴とす
る。
(57) [Abstract] [Purpose] The thickness of the insulating layer in the vicinity of the corners including the corners is increased without increasing the thickness of the insulating layer in the flat part of the metal body such as the motor core, and the unevenness of the thickness of the insulating layer is possible Provided is a method for producing an electrically insulating coated body which can be reduced in number. When a surface of a metal body 20 having a corner portion is covered with an insulating layer such as an electrically insulating coating material, an electrically insulating coated body is manufactured, at a portion near the corner portion including at least the corner portion of the metal body 20. After depositing manganese phosphate particles which are electrically insulating particles to form the uneven surface, an electrically insulating coating material is applied to the surface of the metal body 20 including the uneven surface to form a particle layer 10 made of manganese phosphate particles. An insulating layer is formed by a coating film 26 made of an electrically insulating paint.
Description
【０００１】[0001]
【産業上の利用分野】本発明は電気絶縁塗装体及びその
製造方法に関し、更に詳細には角部を有する金属体の表
面が電気絶縁塗料等の絶縁層によって覆われた電気絶縁
塗装体及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrically insulating coated body and a method for producing the same, and more particularly to an electrically insulating coated body in which the surface of a metal body having corners is covered with an insulating layer such as an electrically insulating coating and the like. It relates to a manufacturing method.
【０００２】[0002]
【従来の技術】小型モータに使用されるモータコア等の
部品は、従来、プレス加工によって金属板から所定形状
に成形された金属体の表面に、電気絶縁塗料等を塗布し
て絶縁層が形成される。この様に絶縁層が全面に形成さ
れたモータコアは、所定箇所に電線が巻かれてコイルが
形成された後、モータ内に組み込まれる。ところで、モ
ータコアの絶縁層の剥離等に因る絶縁不良が発生する
と、モータの回転子が回転しなくなり、不良品となる。
このため、モータコアと絶縁層との剥離等を防止すべ
く、通常、電気絶縁塗料を塗布前に、モータコア本体に
サンドブラスト処理等の前処理が施される。2. Description of the Related Art In parts such as motor cores used in small motors, an insulating layer is conventionally formed by applying an electrically insulating paint or the like on the surface of a metal body formed by pressing into a predetermined shape from a metal plate. It The motor core having the insulating layer formed on the entire surface in this manner is assembled in the motor after the electric wire is wound at a predetermined position to form the coil. By the way, if insulation failure occurs due to peeling of the insulating layer of the motor core, the rotor of the motor does not rotate and the product becomes defective.
Therefore, in order to prevent the motor core and the insulating layer from being peeled off, a pretreatment such as sandblasting is usually performed on the motor core body before applying the electrically insulating paint.
【０００３】[0003]
【発明が解決しようとする課題】前記サンドブラスト処
理等の前処理によって、モータコア本体の表面に微小な
凹凸が形成されるため、電気絶縁塗料から成る絶縁層と
モータコア本体との食付性が向上され、絶縁層の剥離を
防止できる。しかしながら、図２に示す如く、モータコ
ア等の部品本体を構成する金属体２０には、角部が形成
されている。特に、プレス加工によって成形された金属
体２０の角部には、カエリ部２２が形成されていること
が多い。このカエリ部２２は、平打ち加工等を施しても
除去し難く、電気絶縁塗料を塗布する際にも、依然とし
てカエリ部２２が残存している。By the pretreatment such as the sandblasting treatment, fine irregularities are formed on the surface of the motor core body, so that the corrosion resistance between the insulating layer made of the electrically insulating paint and the motor core body is improved. The peeling of the insulating layer can be prevented. However, as shown in FIG. 2, a corner portion is formed in the metal body 20 that constitutes the component body such as the motor core. In particular, the burrs 22 are often formed at the corners of the metal body 20 formed by pressing. The burred portion 22 is difficult to remove even if it is flattened, and the burred portion 22 still remains when the electrically insulating paint is applied.
【０００４】かかるカエリ部２２には、サンドブラスト
処理等の前処理によって凹凸を形成することが困難であ
るため、電気絶縁塗料を塗布して絶縁層を形成すると、
図３に示す如く、絶縁層２４に厚み斑が形成され易い。
つまり、電気絶縁塗料の表面張力等によって、塗料が角
部に溜まり難いため、カエリ部２２の先端近傍における
絶縁層厚さＢが、金属体２０の平坦面における絶縁層厚
さＡよりも薄くなるためである。この様に絶縁層に厚み
斑が形成されると、一般的に、絶縁層の絶縁能は最も絶
縁層が薄い部分で決定されるため、絶縁層２４の絶縁能
はカエリ部２２の先端近傍の絶縁層厚さＢで決定され
る。Since it is difficult to form irregularities on the burrs portion 22 by pretreatment such as sandblasting, if an insulating layer is formed by applying an electrically insulating coating,
As shown in FIG. 3, thickness unevenness is likely to be formed in the insulating layer 24.
That is, since the paint is less likely to collect at the corners due to the surface tension of the electrically insulating paint, the insulating layer thickness B in the vicinity of the tip of the burrs portion 22 becomes smaller than the insulating layer thickness A on the flat surface of the metal body 20. This is because. When the thickness unevenness is formed in the insulating layer in this manner, generally, the insulating ability of the insulating layer is determined in the thinnest portion of the insulating layer, so that the insulating ability of the insulating layer 24 is in the vicinity of the tip of the burrs portion 22. It is determined by the insulating layer thickness B.
【０００５】このため、カエリ部２２の先端近傍の絶縁
層厚さＢを厚くして絶縁層２４の絶縁能を向上せんとす
ると、平坦部の絶縁層厚さＡも同時に厚くなり、金属体
の小型化等の要請に対して対応することができない。ま
た、電気絶縁塗料の量も増加する。そこで、本発明の目
的は、金属体の平坦部の絶縁層厚さを厚くすることなく
角部を含む角部近傍の絶縁層厚さを厚くし、絶縁層の厚
み斑を可及的に少なくできる電気絶縁塗装体及びその製
造方法を提供することにある。Therefore, if the insulating layer thickness B near the tip of the burrs portion 22 is made thicker to improve the insulating ability of the insulating layer 24, the insulating layer thickness A at the flat portion also becomes thicker at the same time. We cannot meet the demand for miniaturization. Also, the amount of electrically insulating paint increases. Therefore, an object of the present invention is to increase the thickness of the insulating layer in the vicinity of the corner portion including the corner portion without increasing the thickness of the insulating layer in the flat portion of the metal body, and reduce the unevenness of the thickness of the insulating layer as much as possible. An object of the present invention is to provide an electrically insulating coated body that can be manufactured and a method for manufacturing the same.
【０００６】[0006]
【課題を解決するための手段】本発明者は、前記目的を
達成すべく検討を重ねた結果、角部が存在する金属体を
主たるイオン成分がリン酸イオンとマンガンイオンとか
ら成る溶液中に浸漬し、金属体の金属表面にリン酸マン
ガン粒子を析出させたところ、カエリ部２２にもリン酸
マンガン粒子が析出すること、更にリン酸マンガン粒子
が析出した金属体に電気絶縁塗料を塗布したところ、絶
縁層の厚みを略均一化できることを見出し、本発明に到
達した。即ち、本発明は、角部を有する金属体の表面が
電気絶縁塗料等の絶縁層によって覆われた電気絶縁塗装
体において、該金属体の少なくとも角部を含む角部近傍
の部位にリン酸マンガン粒子等の電気絶縁性粒子が付着
されて前記部位が凹凸面に形成されていると共に、前記
凹凸面を含む金属体の表面に電気絶縁塗料が塗布され、
前記電気絶縁性粒子から成る粒子層と電気絶縁塗料から
成る塗膜層とから絶縁層が形成されていることを特徴と
する電気絶縁塗装体にある。Means for Solving the Problems As a result of repeated studies to achieve the above-mentioned object, the present inventor has found that a metal body having a corner is placed in a solution whose main ionic component is a phosphate ion and a manganese ion. When manganese phosphate particles were deposited on the metal surface of the metal body by immersion, manganese phosphate particles were also deposited on the burrs part 22. Further, an electrically insulating coating material was applied to the metal body on which manganese phosphate particles were deposited. However, they have found that the thickness of the insulating layer can be made substantially uniform, and have reached the present invention. That is, the present invention provides an electrically insulating coated body in which the surface of a metal body having a corner portion is covered with an insulating layer such as an electrically insulating coating material, and manganese phosphate is provided at a portion near the corner portion including at least the corner portion of the metal body. Electrically insulating particles such as particles are attached and the site is formed on an uneven surface, and an electrically insulating paint is applied to the surface of the metal body including the uneven surface,
An electrically insulating coated body is characterized in that an insulating layer is formed from a particle layer made of the electrically insulating particles and a coating layer made of an electrically insulating paint.
【０００７】また、本発明は、角部を有する金属体の表
面が電気絶縁塗料等の絶縁層によって覆われた電気絶縁
塗装体を製造する際に、該金属体の少なくとも角部を含
む角部近傍の部位に、リン酸マンガン粒子等の電気絶縁
性粒子を析出又は溶着せしめ前記部位を凹凸面とした
後、前記凹凸面を含む金属体の表面に電気絶縁塗料を塗
布し、前記電気絶縁性粒子から成る粒子層と電気絶縁塗
料から成る塗膜とによって絶縁層を形成することを特徴
とする電気絶縁塗装体の製造方法でもある。Further, according to the present invention, when manufacturing an electrically insulating coated body in which a surface of a metal body having a corner is covered with an insulating layer such as an electrically insulating coating, the corner including at least the corner is formed. In the vicinity of the area, after depositing or welding electrically insulating particles such as manganese phosphate particles to form the uneven surface, and then applying an electrically insulating paint to the surface of the metal body including the uneven surface, the electrically insulating property It is also a method for producing an electrically insulating coated body, characterized in that an insulating layer is formed by a particle layer made of particles and a coating film made of an electrically insulating paint.
【０００８】[0008]
【作用】本発明によれば、金属体の角部を含む角部近傍
の部位に付着した電気絶縁性粒子によって角部近傍の表
面が凹凸面に形成されるため、電気絶縁塗料が角部近傍
に溜まることができる。唯、電気絶縁塗料の有する表面
張力等によって角部の塗膜厚さが平坦部の塗膜厚さに比
較して薄くなる傾向にある。この点、本発明では、電気
絶縁性粒子から成る粒子層が絶縁層の一部を構成するた
め、角部の絶縁層厚さは粒子層と塗膜層との合計厚さと
なり、金属体の表面に形成された絶縁層の厚み斑を実質
的に解消できるのである。According to the present invention, since the surface near the corner is formed into an uneven surface by the electrically insulating particles adhered to the vicinity of the corner including the corner of the metal body, the electrically insulating paint is applied near the corner. Can accumulate in. However, due to the surface tension of the electrically insulating paint, the coating thickness at the corners tends to be smaller than the coating thickness at the flat portions. In this respect, in the present invention, since the particle layer made of the electrically insulating particles constitutes a part of the insulating layer, the thickness of the insulating layer at the corner is the total thickness of the particle layer and the coating layer, The thickness unevenness of the insulating layer formed on the surface can be substantially eliminated.
【０００９】[0009]
【発明の構成】本発明において対象とする角部を有する
金属体としては、金属板にプレス加工を施して所定形状
に成形されたものを好適に使用することができる。かか
るプレス加工によって得られた金属体には、図２に示す
如く、角部にカエリ部２２が形成され易い。このカエリ
部２２は、前述した如く、平打ち等を施しても除去する
ことが困難であり、最終製品にも残存する。As the metal body having a corner portion in the present invention, it is possible to preferably use a metal body which is formed into a predetermined shape by pressing a metal plate. In the metal body obtained by such press working, as shown in FIG. 2, burrs 22 are easily formed at the corners. As described above, the burrs 22 are difficult to remove even if they are flattened, and they remain in the final product.
【００１０】本発明においては、図１に示す様に、金属
体の少なくとも角部を含む角部近傍の金属表面に電気絶
縁性粒子が付着されていることが大切である。かかる電
気絶縁性粒子によって角部近傍の表面が凹凸面に形成さ
れると共に、粒子層１０が形成される。本発明で採用さ
れる電気絶縁性粒子としては、リン酸マンガン粒子、セ
ラミック粒子、ガラス粒子を挙げることができる。ここ
で、リン酸マンガン粒子は、主たるイオン成分がリン酸
イオンとマンガンイオンとから成る溶液中に金属体を浸
漬することによって金属表面に析出させることができ
る。この場合、金属体の全表面にリン酸マンガン粒子が
析出する。また、リン酸マンガン粒子は、金属体２０の
角部を含む角部近傍、特にカエリ部２２等の突出部が形
成された角部を含む角部近傍に析出し易く、カエリ部２
２等の突出部を含む角部近傍に形成的される粒子層１０
を、他の部分の粒子層よりも厚く形成することができ
る。一方、セラミック粒子又はガラス粒子は、セラミッ
ク粒子又はガラス粒子の溶着又は接着によって、金属表
面に付着することができ、角部を含む角部近傍等の特定
の部位にセラミック粒子又はガラス粒子を付着させるこ
とができる。In the present invention, as shown in FIG. 1, it is important that the electrically insulating particles are attached to the metal surface near the corners including at least the corners of the metal body. By the electrically insulating particles, the surface near the corners is formed into an uneven surface, and the particle layer 10 is formed. Examples of the electrically insulating particles used in the present invention include manganese phosphate particles, ceramic particles, and glass particles. Here, the manganese phosphate particles can be deposited on the metal surface by immersing the metal body in a solution whose main ionic component is phosphate ions and manganese ions. In this case, manganese phosphate particles are deposited on the entire surface of the metal body. Further, the manganese phosphate particles are likely to be deposited near the corners including the corners of the metal body 20, particularly near the corners including the corners where the protrusions such as the burrs 22 are formed, and thus the burrs 2
Particle layer 10 formed near a corner including a protrusion such as 2
Can be formed thicker than the particle layer of the other part. On the other hand, the ceramic particles or glass particles can be attached to the metal surface by welding or adhering the ceramic particles or glass particles, and the ceramic particles or glass particles are attached to a specific portion such as a corner portion including a corner portion. be able to.
【００１１】角部近傍の表面に電気絶縁性粒子から成る
粒子層１０が形成された金属体２０は、粒子層１０を含
む金属体２０の表面に電気絶縁塗料が塗布され塗膜層２
６が形成される。この電気絶縁塗料の塗布は、従来から
公知の電着塗装方法、静電塗装方法、或いは吹付塗装方
法等の任意の塗装方法で行うことができる。かかる電気
絶縁塗料が金属体２０の表面に塗布された際に、凹凸表
面に形成された角部近傍に塗料が溜まり易く、角部近傍
の表面に電気絶縁性粒子を付着させなかった場合に比較
して、角部近傍の塗膜厚さＢを厚くすることができる。
唯、図１に示す様に、金属体２０の角部近傍の絶縁層２
４において、粒子層１０の層厚さＡ1 が塗膜厚さＢ1 よ
りも薄くなる部分が存在する場合もある。この場合にお
いても、本発明では、角部近傍の絶縁層２４が粒子層１
０と塗膜層２６とから構成されるため、両者の合計厚さ
Ｂが金属体２０の平坦部に形成された絶縁層２４の層厚
さＡと略等しくすることができる。この様に、金属体２
０の表面上に形成された絶縁層２４の厚みを可及的に均
一とすることができ、絶縁能が決定される絶縁層２４の
薄い部分の解消を図ることができる。The metal body 20 having the particle layer 10 made of electrically insulating particles formed on the surface in the vicinity of the corner is coated with the electrically insulating paint on the surface of the metal body 20 including the particle layer 10 to form the coating layer 2
6 is formed. The application of the electrically insulating paint can be performed by any known coating method such as a conventionally known electrodeposition coating method, electrostatic coating method, or spray coating method. When such an electrically insulating coating material is applied to the surface of the metal body 20, the coating material is likely to accumulate near the corners formed on the uneven surface, and comparison is made when the electrically insulating particles are not attached to the surface near the corner portions. Thus, the coating film thickness B near the corner can be increased.
However, as shown in FIG. 1, the insulating layer 2 near the corners of the metal body 20.
4, there may be a portion where the layer thickness A 1 of the particle layer 10 becomes thinner than the coating film thickness B 1 . Even in this case, in the present invention, the insulating layer 24 in the vicinity of the corner is the particle layer 1
0 and the coating layer 26, the total thickness B of both can be made substantially equal to the layer thickness A of the insulating layer 24 formed on the flat portion of the metal body 20. In this way, the metal body 2
The thickness of the insulating layer 24 formed on the surface of 0 can be made as uniform as possible, and the thin portion of the insulating layer 24 whose insulating ability is determined can be eliminated.
【００１２】粒子層１０の層厚さＡ1 と塗膜厚さＢ1 と
は、絶縁層２４の層厚さが均一となる厚さであれば任意
の厚さとすることができるが、粒子層１０の層厚さＡ1
を約０．００５〜０．０２５ｍｍ程度としたとき、塗膜
厚さＢ1 を０．０１〜０．０３ｍｍとすることが好まし
い。また、粒子層１０が金属体２０の全表面に亘って形
成されていてもよく、この場合には塗布する電気絶縁塗
料の量を少なくすることも可能である。この様にして絶
縁層２４が形成された図１に示す金属体２０は、実質的
に電気絶縁塗料のみによって絶縁層が形成された金属体
に比較して、その呈する電気絶縁抵抗値を大きくするこ
とができる。尚、本発明においても、金属体の表面にサ
ンドブラスト処理等に因る微小な凹凸が形成されていて
もよく、かかる微小凹凸によって塗膜層２６と金属体と
の食付性を向上できる。The layer thickness A 1 and the coating film thickness B 1 of the particle layer 10 can be any thickness as long as the layer thickness of the insulating layer 24 is uniform. 10 layer thickness A 1
Is about 0.005 to 0.025 mm, the coating thickness B 1 is preferably 0.01 to 0.03 mm. Further, the particle layer 10 may be formed over the entire surface of the metal body 20, and in this case, the amount of the electrically insulating paint to be applied can be reduced. The metal body 20 shown in FIG. 1 on which the insulating layer 24 is formed in this manner has a larger electrical insulation resistance value than the metal body on which the insulating layer is formed substantially only by the electrically insulating coating material. be able to. Also in the present invention, fine irregularities due to sandblasting or the like may be formed on the surface of the metal body, and the fine irregularities can improve the corrosion resistance between the coating layer 26 and the metal body.
【００１３】[0013]
実施例 磁性材料から成る金属板をプレス加工してモータコアを
成形した。得られたモータコアの断面について顕微鏡観
察したところ、図２に示す如く、モータコアの角部にカ
エリ部２２が形成されていた。このモータコアを主たる
イオン成分がリン酸イオンとマンガンイオンとから成る
９５℃の溶液中に３０分間浸漬し、モータコアの全表面
にリン酸マンガン粒子を析出させた。この溶液１リット
ル当たりには、主としてリン酸イオンとマンガンイオン
とから成るイオン成分１４０ｇが溶解されている。溶液
中から引き出したモータコアの表面を顕微鏡観察する
と、カエリ部２２を含む角部近傍には充分な量のリン酸
マンガン粒子が析出していた。次いで、リン酸マンガン
粒子が析出したモータコアの全表面に、市販されている
電気絶縁塗料を吹付塗装方法によって吹き付けて塗膜を
形成し、モータコアの断面を顕微鏡観察した。その結
果、図１に示すリン酸マンガン粒子から成る粒子層１０
の層厚さＡ1 が約０．０１ｍｍであり、塗膜層２６の塗
膜厚さＢ1 が約０．０３ｍｍであった（絶縁層１４の層
厚さが約０．０４ｍｍ）。かかる絶縁層２４が形成され
たモータコアの電気絶縁抵抗を測定したところ、５００
Ｖ、２０ＭΩであった。Example A motor core was molded by pressing a metal plate made of a magnetic material. Microscopic observation of the cross section of the obtained motor core revealed that, as shown in FIG. 2, burrs 22 were formed at the corners of the motor core. This motor core was immersed in a solution of which the main ionic components were phosphate ions and manganese ions at 95 ° C. for 30 minutes to deposit manganese phosphate particles on the entire surface of the motor core. 140 g of an ionic component mainly composed of phosphate ions and manganese ions is dissolved in 1 liter of this solution. When the surface of the motor core pulled out from the solution was observed under a microscope, a sufficient amount of manganese phosphate particles were deposited in the vicinity of the corner including the burrs 22. Next, a commercially available electrically insulating paint was sprayed onto the entire surface of the motor core on which manganese phosphate particles were deposited by a spray coating method to form a coating film, and the cross section of the motor core was observed under a microscope. As a result, the particle layer 10 composed of manganese phosphate particles shown in FIG.
A layer thickness A 1 of about 0.01 mm, coating thickness B 1 of the coating layer 26 was about 0.03 mm (about 0.04mm the layer thickness of the insulating layer 14). When the electric insulation resistance of the motor core on which the insulating layer 24 is formed is measured, it is 500
It was V and 20 MΩ.
【００１４】比較例 実施例において、リン酸マンガンの水溶液にモータコア
を浸漬することなく、電気絶縁塗料を塗布した他は、実
施例と同様にして絶縁層を形成した。この際に、モータ
コアの平坦部の絶縁層の層厚さが約０．０５ｍｍとなる
ように、電気絶縁塗料を塗布した。次いで、電気絶縁塗
料を塗布したモータコアの断面を顕微鏡観察したとこ
ろ、図３に示す断面形状であり、カエリ部２２に形成さ
れた絶縁層の層厚さＢは、平坦部の絶縁層の層厚さＡの
約１／３程度であった。また、このモータコアの電気絶
縁抵抗を測定したところ、２５０Ｖ、２０ＭΩであり、
実施例のモータコアの電気絶縁抵抗値よりも低いもので
あった。Comparative Example An insulating layer was formed in the same manner as in the example, except that the electrically insulating coating material was applied to the motor core without immersing the motor core in the aqueous solution of manganese phosphate. At this time, the electrically insulating coating material was applied so that the insulating layer in the flat portion of the motor core had a layer thickness of about 0.05 mm. Next, when a cross section of the motor core coated with the electrically insulating coating is observed under a microscope, the cross sectional shape is as shown in FIG. 3, and the layer thickness B of the insulating layer formed on the burrs portion 22 is the layer thickness of the insulating layer of the flat portion. It was about 1/3 of A. Moreover, when the electric insulation resistance of this motor core was measured, it was 250 V and 20 MΩ,
It was lower than the electric insulation resistance value of the motor core of the example.
【００１５】[0015]
【発明の効果】本発明によれば、角部を有する金属体の
表面に均一厚さの絶縁層を形成することができ、絶縁能
を容易に向上することができる。また、金属体の平坦部
の絶縁層厚さを厚くすることなく角部を含む角部近傍の
絶縁層厚さを厚くすることができるため、金属体全体に
おいては、形成すべき絶縁層厚さを薄くできるため、モ
ータ等の小型化の要請に応えることができる。According to the present invention, an insulating layer having a uniform thickness can be formed on the surface of a metal body having a corner, and the insulating ability can be easily improved. In addition, since it is possible to increase the thickness of the insulating layer in the vicinity of the corners including the corners without increasing the thickness of the insulating layer in the flat portion of the metal body, the thickness of the insulating layer to be formed in the entire metal body Since the thickness can be reduced, it is possible to meet the demand for miniaturization of the motor and the like.
【図１】本発明に係る電気絶縁塗装体の部分断面図であ
る。FIG. 1 is a partial cross-sectional view of an electrically insulating coated body according to the present invention.
【図２】プレス加工によって成形された金属体の部分断
面図である。FIG. 2 is a partial cross-sectional view of a metal body formed by press working.
【図３】図２に示す金属体に直接電気絶縁塗料を塗布し
た状態を説明するための部分断面図である。FIG. 3 is a partial cross-sectional view for explaining a state where the electrically insulating coating material is directly applied to the metal body shown in FIG.
１０ 粒子層 ２０ 金属体 ２２ カエリ部 ２４ 絶縁層 ２６ 塗膜層 Ａ 平坦部の絶縁層厚さ Ａ1 粒子層１０の層厚さ Ｂ 角部の絶縁層厚さ Ｂ1 角部の塗膜厚さ10 particle layer 20 metal body 22 burial portion 24 insulating layer 26 coating layer A flat layer insulating layer thickness A 1 particle layer 10 layer thickness B corner insulating layer thickness B 1 corner coating thickness
Claims (2)
料等の絶縁層によって覆われた電気絶縁塗装体におい
て、 該金属体の少なくとも角部を含む角部近傍の部位にリン
酸マンガン粒子等の電気絶縁性粒子が付着されて前記部
位が凹凸面に形成されていると共に、 前記凹凸面を含む金属体の表面に電気絶縁塗料が塗布さ
れ、前記電気絶縁性粒子から成る粒子層と電気絶縁塗料
から成る塗膜層とから絶縁層が形成されていることを特
徴とする電気絶縁塗装体。1. An electrically insulating coated body in which a surface of a metal body having a corner portion is covered with an insulating layer such as an electrically insulating paint, and manganese phosphate particles are provided at a portion near the corner portion including at least the corner portion of the metal body. Electrical insulating particles such as are adhered to form the portion on the uneven surface, and the surface of the metal body including the uneven surface is coated with an electrically insulating coating material to form a particle layer made of the electrically insulating particles and electrically. An electrically insulating coated body, wherein an insulating layer is formed from a coating layer made of an insulating paint.
料等の絶縁層によって覆われた電気絶縁塗装体を製造す
る際に、 該金属体の少なくとも角部を含む角部近傍の部位に、リ
ン酸マンガン粒子等の電気絶縁性粒子を析出又は溶着せ
しめ前記部位を凹凸面とした後、 前記凹凸面を含む金属体の表面に電気絶縁塗料を塗布
し、前記電気絶縁性粒子から成る粒子層と電気絶縁塗料
から成る塗膜とによって絶縁層を形成することを特徴と
する電気絶縁塗装体の製造方法。2. When manufacturing an electrically insulating coated body in which the surface of a metal body having a corner portion is covered with an insulating layer such as an electrically insulating coating material, a portion of the metal body near at least the corner portion including the corner portion is produced. , After precipitating or welding electrically insulating particles such as manganese phosphate particles to form the uneven surface, and then applying an electrically insulating coating material to the surface of the metal body including the uneven surface, particles composed of the electrically insulating particles A method for producing an electrically insulating coated body, comprising forming an insulating layer with a layer and a coating film made of an electrically insulating coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5020606A JP2524677B2 (en) | 1993-01-13 | 1993-01-13 | Electrically-insulated coated body and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5020606A JP2524677B2 (en) | 1993-01-13 | 1993-01-13 | Electrically-insulated coated body and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06215930A true JPH06215930A (en) | 1994-08-05 |
| JP2524677B2 JP2524677B2 (en) | 1996-08-14 |
Family
ID=12031930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5020606A Expired - Fee Related JP2524677B2 (en) | 1993-01-13 | 1993-01-13 | Electrically-insulated coated body and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2524677B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04171802A (en) * | 1990-11-06 | 1992-06-19 | Toshiba Corp | Magnetic core |
| JP3026249U (en) * | 1995-12-22 | 1996-07-02 | 正至 高岩 | Disposable brace for easy and hygienic treatment of feces and urine |
-
1993
- 1993-01-13 JP JP5020606A patent/JP2524677B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04171802A (en) * | 1990-11-06 | 1992-06-19 | Toshiba Corp | Magnetic core |
| JP3026249U (en) * | 1995-12-22 | 1996-07-02 | 正至 高岩 | Disposable brace for easy and hygienic treatment of feces and urine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2524677B2 (en) | 1996-08-14 |
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