JPS6352762B2 - - Google Patents
Info
- Publication number
- JPS6352762B2 JPS6352762B2 JP57191309A JP19130982A JPS6352762B2 JP S6352762 B2 JPS6352762 B2 JP S6352762B2 JP 57191309 A JP57191309 A JP 57191309A JP 19130982 A JP19130982 A JP 19130982A JP S6352762 B2 JPS6352762 B2 JP S6352762B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- annealing
- adhesive
- wound
- excitation coil
- 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.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 63
- 239000000853 adhesive Substances 0.000 claims description 24
- 230000001070 adhesive effect Effects 0.000 claims description 24
- 238000000137 annealing Methods 0.000 claims description 21
- 230000005284 excitation Effects 0.000 claims description 21
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 239000000463 material Substances 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010409 thin film Substances 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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
- H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Description
【発明の詳細な説明】
本発明は変圧器等の誘導電気機器に用いる鉄心
に係り、特に非晶質（アモルフアス）磁性薄帯か
ら鉄心を製造する変圧器鉄心の製造方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an iron core used in induction electrical equipment such as a transformer, and more particularly to a method for manufacturing a transformer core from an amorphous magnetic ribbon.
近年、鉄心材料の進歩は著しく、種々の低損失
な鉄心材料が開発されている。このなかで、特に
アモルフアスと称する非晶質磁性薄帯が新しい鉄
心材料として脚光をあびている。これは、鉄、シ
リコン、ボロン、更にはニツケル、クロム等によ
つて構成され、従来の珪素鋼帯に比して鉄損が著
しく小さい、鉄心材料としての磁気的性質が非常
に優れている。しかし、この非晶質磁性薄帯は、
製法上の理由から従来の珪素鋼帯のように板厚を
厚くすることが難かしく、最大限に厚くしても
100〜150μｍ程度が限界と考えられており、従つ
て、上記非晶質磁性薄帯を用いて変圧器鉄心を作
ろうとした場合、従来の珪素鋼帯と同様の方法で
変圧器鉄心を製作することは困難であつた。これ
は、非晶質磁性薄帯が、上述の如く、極めて薄
く、極めて硬く、その上素材自体のじん性が非常
に大きいためである。即ち、上記磁性薄帯を用い
て変圧器の鉄心（巻鉄心）を製作した場合、上記
磁性薄帯を矩形状の巻枠に所要回数巻回して巻枠
を除去すると、磁性薄帯は特にそのじん性が大き
いので、矩形に巻回された巻鉄心の内側隅角部
は、巻枠による支えがなくなることによつて形崩
れを起し、所期の矩形状態に保つことができず、
この結果、上記巻鉄心の脚部に磁場焼鈍用の励磁
コイルを巻くことができなくなる欠点があつた。
従つて、上記巻鉄心にはその脚部および継鉄部を
真直ぐに維持させる非磁性材料からなる特殊な巻
枠（例えば内部を中空状に形成したもの）を用い
て巻鉄心を矩形状に維持させ、励磁コイルは上記
巻鉄心と中空状の巻枠とにまたがつて巻回してい
た。しかし、上記巻枠を構成する非磁性材料とし
ては、例えば合成樹脂あるいは非磁性金属がある
が、合成樹脂では焼鈍温度に耐え得ず、又、非磁
性金属（例えばステンレス鋼板）では非晶質磁性
薄帯との熱膨張率が相違し、焼鈍時上記非晶質磁
性薄帯に悪影響を与える虞れがあるため利用は困
難であつた。 In recent years, iron core materials have made remarkable progress, and various low-loss iron core materials have been developed. Among these, an amorphous magnetic ribbon called amorphous is particularly attracting attention as a new core material. This material is composed of iron, silicon, boron, nickel, chromium, etc., and has significantly lower iron loss than conventional silicon steel strips, and has excellent magnetic properties as an iron core material. However, this amorphous magnetic ribbon
Due to the manufacturing process, it is difficult to make the plate as thick as conventional silicon steel strips, and even if the thickness is maximized,
It is thought that the limit is about 100 to 150 μm. Therefore, when trying to make a transformer core using the above-mentioned amorphous magnetic ribbon, the transformer core must be manufactured using the same method as conventional silicon steel strip. That was difficult. This is because, as mentioned above, the amorphous magnetic ribbon is extremely thin and extremely hard, and the material itself has extremely high toughness. That is, when a transformer core (wound core) is manufactured using the magnetic ribbon, when the magnetic ribbon is wound around a rectangular winding frame the required number of times and the winding frame is removed, the magnetic ribbon becomes Due to its high toughness, the inner corners of the rectangularly wound core lose their shape due to the lack of support from the winding frame, and are unable to maintain the desired rectangular shape.
As a result, there was a drawback that an excitation coil for magnetic field annealing could not be wound around the legs of the wound core.
Therefore, the above-mentioned wound core is kept in a rectangular shape by using a special winding frame made of non-magnetic material (for example, one with a hollow inside) that keeps the legs and yoke parts straight. The excitation coil was wound astride the wound core and the hollow winding frame. However, examples of non-magnetic materials constituting the winding frame include synthetic resins and non-magnetic metals, but synthetic resins cannot withstand annealing temperatures, and non-magnetic metals (such as stainless steel plates) have amorphous magnetic properties. It has been difficult to use it because the coefficient of thermal expansion is different from that of the ribbon, and there is a risk of adversely affecting the amorphous magnetic ribbon during annealing.
本発明は上述の点に鑑み、変圧器等の鉄心を非
晶質磁性薄帯を用いて簡易に、しかも経済的に製
作することができる信頼性の高い製造方法を提供
するもので、以下本発明の実施例を図により説明
すると、回転自在にセツトされたドラム１には非
晶質磁性薄帯（以下磁性薄帯と称する。）２が巻
回されており、この磁性薄帯２は、第１図に示す
ように、複数のガイドローラ３を介して図示しな
い電動駆動機構により回転される矩形状の巻枠４
に所要回数巻付けられて変圧器の巻鉄心としての
原形加工を行つて巻装体２ａを形成する。この
際、磁性薄帯２は、巻枠４の中心から遠くなる位
置で巻回されるほど徐々に丸味をおびた状態とな
るため、巻回終了時点では巻枠４にほぼ矩形状態
で巻回される。次に、上記巻装体２ａを巻枠４と
共に駆動機構から取外し、この巻装体２ａの脚部
および継鉄部にそれぞれ板材５を当て、プレス等
の加圧手段にて上記板材５を、所要の力で第２図
に矢印で示す如く上下および左右方向から巻枠４
の中心方向に向つて加圧することにより、ほぼ矩
形状態に巻回した上記巻装体２ａを、巻枠４を介
して矩形状に加圧保持させる。このあと、上記矩
形状に維持されている巻装体２ａ両側の積層端面
にセラミツク系の耐熱性の接着剤（例えば、アロ
ンセラミツク（商品名）東亜合成化学工業株式会
社）を巻装体２ａの層間内に侵入しない程度に塗
布する。次に、上記接着剤を加熱硬化（100〜150
℃）させると、巻装体２ａは上記接着剤の接着力
により、板体５を介しての加圧手段による加圧状
態を解いても形くずれを起すことなく矩形状態に
維持される。次に、上記耐熱性接着剤の力により
矩形状態を維持しているノーカツトの巻装体２ａ
の脚部に第４図に示す如く磁場焼鈍用の励磁コイ
ル６を巻回する。この励磁コイル６の巻回は次の
順序で行う。先づ巻装体２ａより巻枠４を抜き取
つてから、この巻装体２ａの一方の脚部に、鍔部
を両端に設けたセラミツク系の材料からなる耐熱
性のボビン７を２分割して形成したものを、その
分割部を利用して回転可能に取付け、このボビン
７の鍔部外周に設けた歯車部７ａを電動駆動する
歯車８と噛合させてボビン７を回転させ、このボ
ビン７に耐熱処理された電線９を所要回数巻回し
て上記励磁コイル６を巻装体２ａに設ける。この
あと、励磁コイル６を備えた巻装体２ａを第５図
に示すように、焼鈍炉１０に入れ、上記励磁コイ
ル６を直流電源に接続する。又、焼鈍炉１０内に
は窒素やアルゴン等の不活性ガスＧを充填させる
と共に、加熱装置１１を通電させて炉内温度を焼
鈍加工に適した温度（約350〜500℃）まで加温さ
せる。この結果、上記巻装体２ａは、励磁コイル
６に通電することにより、巻装体２ａの巻回方向
に磁場を誘起させ、この誘起磁場の強度は、磁性
薄帯２をほぼ飽和させる程度以上とすればよい。
即ち、上述のように、誘起磁場発生下において、
巻装体２ａは、加熱装置１１により、磁性薄帯２
の結晶化温度およびキユリー温度未満の温度で焼
鈍加工を行つて、巻装体２ａを構成する磁性薄帯
２の磁気特性の向上をはかる。 In view of the above-mentioned points, the present invention provides a highly reliable manufacturing method that can easily and economically manufacture the iron core of a transformer, etc. using an amorphous magnetic ribbon. An embodiment of the invention will be described with reference to the drawings. An amorphous magnetic ribbon (hereinafter referred to as magnetic ribbon) 2 is wound around a rotatably set drum 1. As shown in FIG. 1, a rectangular winding frame 4 is rotated by an electric drive mechanism (not shown) via a plurality of guide rollers 3.
The wound body 2a is formed by winding the wound body 2a a required number of times and processing it into a prototype as a wound core of a transformer. At this time, the magnetic ribbon 2 gradually becomes rounder as it is wound farther from the center of the winding frame 4, so that it is wound around the winding frame 4 in an almost rectangular shape at the end of winding. be done. Next, the winding body 2a is removed from the drive mechanism together with the winding frame 4, and the plate material 5 is applied to the legs and yoke portions of the winding body 2a, respectively, and the plate material 5 is pressed using a pressure means such as a press. With the required force, remove the winding frame 4 from the top and bottom and left and right directions as shown by the arrows in Figure 2.
By applying pressure toward the center of the winding frame 4, the wound body 2a wound into a substantially rectangular shape is held under pressure in a rectangular shape via the winding frame 4. After that, a heat-resistant ceramic adhesive (for example, Aron Ceramic (trade name) Toagosei Kagaku Kogyo Co., Ltd.) is applied to the laminated end faces on both sides of the wrapping body 2a, which is maintained in the rectangular shape. Apply to the extent that it does not penetrate into the interlayers. Next, heat cure the above adhesive (100 to 150
℃), the wrapping body 2a is maintained in a rectangular shape without deformation even after the pressure applied by the pressure means via the plate 5 is released due to the adhesive force of the adhesive. Next, the uncut wrapped body 2a, which maintains its rectangular shape by the power of the heat-resistant adhesive, is
As shown in FIG. 4, an excitation coil 6 for magnetic field annealing is wound around the leg portion of the excitation coil 6. The exciting coil 6 is wound in the following order. First, the winding frame 4 is removed from the winding body 2a, and then a heat-resistant bobbin 7 made of a ceramic material with flanges provided at both ends is divided into two parts on one leg of the winding body 2a. The bobbin 7 is rotated by rotating the bobbin 7 by meshing the gear 7a provided on the outer periphery of the flange of the bobbin 7 with an electrically driven gear 8. The excitation coil 6 is provided on the winding body 2a by winding the electric wire 9 which has been heat-resistant treated a required number of times. Thereafter, the wound body 2a provided with the excitation coil 6 is placed in an annealing furnace 10, as shown in FIG. 5, and the excitation coil 6 is connected to a DC power source. In addition, the annealing furnace 10 is filled with an inert gas G such as nitrogen or argon, and the heating device 11 is energized to heat the inside of the furnace to a temperature suitable for annealing (approximately 350 to 500°C). . As a result, the winding body 2a induces a magnetic field in the winding direction of the winding body 2a by energizing the excitation coil 6, and the intensity of this induced magnetic field is greater than or equal to a level that substantially saturates the magnetic ribbon 2. And it is sufficient.
That is, as mentioned above, under the generation of an induced magnetic field,
The winding body 2a is heated by the heating device 11, and the magnetic ribbon 2
The annealing process is performed at a temperature lower than the crystallization temperature and the Curie temperature to improve the magnetic properties of the magnetic ribbon 2 constituting the winding body 2a.
尚、上記磁場処理時間は、処理量、処理温度に
よつて種々異なるが、通常は１分〜１日程度施す
のがよいとされている。 The time for the magnetic field treatment varies depending on the amount of treatment and the treatment temperature, but it is generally recommended that the magnetic field treatment be carried out for about 1 minute to 1 day.
そして、加熱装置１１による所要温度での加熱
保持後（焼鈍後）、巻装体２ａは磁場中で徐冷す
る。 After being heated and maintained at a required temperature by the heating device 11 (after annealing), the wrapped body 2a is gradually cooled in a magnetic field.
徐冷後、巻装体２ａから励磁コイル６を除去す
ることにより、磁性薄帯２によるノーカツトの変
圧器用巻鉄心の製作を完了するものである。 After slow cooling, the excitation coil 6 is removed from the winding body 2a, thereby completing the production of an uncut transformer wound core using the magnetic ribbon 2.
本発明は上述のように、非晶質磁性薄帯を巻枠
に所要回数巻回してほぼ矩形状に形成された巻装
体を加圧手段にて矩形状態に加圧保持させ、この
状態で上記巻装体の積層端面にのみセラミツク系
の耐熱性に優れた接着剤を塗布してこれを加熱硬
化せしめ、上記接着剤にて矩形状態に保持されて
いる巻装体に磁場焼鈍用の励磁コイルを巻回し、
このあと、上記励磁コイルに通電して巻装体に所
定強度の磁場を誘起させながら上記巻装体を不活
性ガスの雰囲気内で所要温度にて焼鈍を行い、こ
の焼鈍後巻装体から励磁コイルを除去することに
より非晶質磁性薄帯を利用したノーカツトの変圧
器鉄心を製造するようにしたもので、本発明の製
造方法においては次に示すような効果を有する。 As described above, the present invention involves winding an amorphous magnetic ribbon around a winding frame a predetermined number of times to form a nearly rectangular wrapping body, which is pressurized and held in a rectangular shape by a pressure means, and in this state. A ceramic-based adhesive with excellent heat resistance is applied only to the laminated end face of the above-mentioned winding body and cured by heating, and the winding body, which is held in a rectangular shape by the above adhesive, is excited for magnetic field annealing. Wind the coil,
Thereafter, the winding body is annealed at a required temperature in an inert gas atmosphere while energizing the excitation coil to induce a magnetic field of a predetermined strength in the winding body, and after this annealing, the winding body is excited. By removing the coil, an uncut transformer core using an amorphous magnetic ribbon is manufactured, and the manufacturing method of the present invention has the following effects.
本発明においては、ほぼ矩形状態に巻回した
巻装体をプレス等の加圧手段により矩形状態に
成形保持させ、この加圧された状態で巻装体の
積層端面にのみ耐熱性の接着剤を塗布し、これ
を加熱硬化することにより巻装体自体の矩形状
態を、上記加圧保持手段を除去しても、矩形状
に保つことができるように形成されているの
で、上記巻装体を励磁コイル等の巻回にあたり
移動させても、巻装体は積層端面に塗布した接
着剤の働きにより形崩れを起すようなことは全
くなく、円滑に搬送することができる。しか
も、巻装体に接着剤を塗布する場合、その積層
端面にのみ塗布されており、即ち、巻装体の矩
形状態を保持することができればよいので、接
着剤は巻層体の層間内に侵入しないよう必要最
少限度の量だけ薄膜状に塗布すればよく、しか
も、塗布時は巻装体が加圧手段により強固に矩
形保持されているので、接着剤が巻装体の層間
内に侵入することもない。従つて、接着剤が層
間内に侵入して加熱硬化されたとき、接着剤と
非晶質磁性薄帯との熱膨張係数等の違いによ
り、該非晶質磁性薄帯に歪が加えられて、その
磁気特性を劣化させることは全くない。その
上、接着剤は焼鈍温度以下の比較的低い温度に
より短時間に加熱硬化させることができるとと
もに、この加熱硬化時は巻装体が加圧手段によ
り矩形状態が保持されているので、接着剤自体
が層間内に侵入していないことと相まつて、非
晶質磁性薄帯に歪みを生じさせてその特性に悪
影響を与えるようなことは全くなく、接着剤の
加熱硬化により、巻装体の矩形保持手段を解除
しても、巻装体は磁気特性を損うことなく良好
に矩形状態を保持させることができる。 In the present invention, a winding body wound into a substantially rectangular shape is formed and held in a rectangular shape by a pressure means such as a press, and in this pressurized state, a heat-resistant adhesive is applied only to the laminated end surface of the winding body. The wrapping body itself is formed so that it can maintain its rectangular shape even if the pressure holding means is removed by applying and heating and curing the coating. Even when the wound body is moved while winding the excitation coil, etc., the wound body does not lose its shape at all due to the action of the adhesive applied to the end faces of the laminate, and can be transported smoothly. Moreover, when applying the adhesive to the winding body, it is applied only to the end faces of the laminate; in other words, it is sufficient to maintain the rectangular shape of the winding body, so the adhesive is applied between the layers of the winding body. It is only necessary to apply a thin film in the minimum amount necessary to prevent adhesive from penetrating, and since the wrapping is firmly held in a rectangular shape by pressure means during application, the adhesive does not penetrate between the layers of the wrapping. There's nothing to do. Therefore, when the adhesive enters the interlayer and is heated and cured, the amorphous magnetic ribbon is strained due to the difference in thermal expansion coefficient between the adhesive and the amorphous magnetic ribbon. There is no deterioration of its magnetic properties. Furthermore, the adhesive can be heated and cured in a short time at a relatively low temperature below the annealing temperature, and the wrapping body is kept in a rectangular state by pressure means during this heating and curing process. Coupled with the fact that the adhesive itself does not penetrate between the layers, it does not cause distortion in the amorphous magnetic ribbon and adversely affect its properties. Even if the rectangular shape holding means is released, the wound body can maintain its rectangular shape well without impairing its magnetic properties.
又、上記のように、接着剤にて矩形保持され
ている巻装体に磁場焼鈍用の励磁コイルを巻回
する場合、上記のように巻装体自体は、その積
層端面に塗布した接着剤により形崩れしないよ
うに矩形保持されているので、励磁コイルを巻
回するためのボビンの取付けが簡単に行えると
ともに、ボビンを励磁コイルの巻回に際して回
転させても、このボビンを取付けた巻装体の脚
部は、接着剤により固化されているため、その
機械的強度を強くすることができ、脆弱な脚部
を保護するのにテーピング等を施して機械的強
度を強くする必要は全くない。従つて、巻装体
はボビンの回転により破損することなく、励磁
コイルの巻回作業を円滑・良好に行うことがで
きる。 In addition, as described above, when an excitation coil for magnetic field annealing is wound around a winding body that is held in a rectangular shape with an adhesive, the winding body itself is held in a rectangular shape by adhesive. Since the bobbin is held rectangular so that it does not lose its shape, it is easy to install the bobbin for winding the excitation coil, and even if the bobbin is rotated when winding the excitation coil, the winding with this bobbin attached will not change. Since the legs of the body are solidified with adhesive, their mechanical strength can be strengthened, and there is no need to strengthen the mechanical strength by applying tape or other means to protect the fragile legs. . Therefore, the winding body is not damaged by the rotation of the bobbin, and the excitation coil can be wound smoothly and satisfactorily.
更に、巻装体を非晶質磁性薄帯の焼鈍温度で
磁場焼鈍を行う場合、本発明は巻装体の加圧状
態を解除して励磁コイルのみを巻回した状態で
焼鈍しているので、巻装体の内、外周面はほぼ
均等な温度で加熱焼鈍することが可能となり、
非晶質磁性薄帯の特性を何等損うことなく、円
滑・良好に焼鈍することができ、磁気特性に優
れた巻鉄心を提供することができるものであ
る。 Furthermore, when the wound body is subjected to magnetic field annealing at the annealing temperature of an amorphous magnetic ribbon, in the present invention, the pressurized state of the wound body is released and annealing is performed with only the excitation coil wound. , the inner and outer peripheral surfaces of the wrapped body can be heated and annealed at almost uniform temperature,
The amorphous magnetic ribbon can be annealed smoothly and favorably without any loss of properties, and a wound core with excellent magnetic properties can be provided.
以上説明したように、本発明は巻装体がその積
層端面にのみ塗布して硬化させた接着剤により形
崩れすることなく常に矩形状態に保持されている
ので、励磁コイルの巻回、取外しあるいは正規の
コイルの巻回、搬送等に際し、本発明の方法によ
り製作した巻鉄心は、変形や形崩れを起すことは
全くなく定形に保持することができるため、非晶
質磁性薄帯の鉄心特性を何等損うことなく、励磁
コイルや正規な変圧器コイルの巻回作業が容易に
行うことができ、変圧器の生産性を向上させるよ
うにした変圧器鉄心の製送方法を提供することが
できる。 As explained above, in the present invention, the winding body is always maintained in a rectangular state without losing its shape by the adhesive applied only to the end faces of the laminate and cured. During regular coil winding, transportation, etc., the wound core manufactured by the method of the present invention does not deform or lose its shape and can be held in its regular shape, so the core characteristics of the amorphous magnetic ribbon are improved. To provide a method for manufacturing and feeding a transformer core, which allows the winding work of excitation coils and regular transformer coils to be easily performed without any damage to the coils, and which improves the productivity of transformers. can.
第１図乃至第５図は本発明、変圧器鉄心の製造
方法の概略を工程別に示すもので、第１図は鉄心
の巻回状態を示す概略図、第２図は鉄心を矩形状
態に加圧する場合の説明図、第３図は鉄心の仕上
り形状を示す正面図、第４図は鉄心に励磁コイル
を巻回する状態を示す斜視図、第５図は鉄心の焼
鈍状態を示す説明図である。
２……非晶質磁性薄帯、２ａ……巻装体、４…
…巻枠、６……励磁コイル。
Figures 1 to 5 show an outline of the method for manufacturing a transformer core according to the present invention, step by step. Figure 1 is a schematic diagram showing the winding state of the core, and Figure 2 is a diagram showing how the core is wound into a rectangular shape. Fig. 3 is a front view showing the finished shape of the iron core, Fig. 4 is a perspective view showing the state in which the exciting coil is wound around the iron core, and Fig. 5 is an explanatory drawing showing the annealing state of the iron core. be. 2... Amorphous magnetic ribbon, 2a... Wound body, 4...
... Winding frame, 6... Excitation coil.
Claims (1)
ぼ矩形状の巻装体を形成する工程と、この巻装体
をプレス等の加圧手段にて巻枠の中心方向に加圧
して上記巻装体を矩形状に加圧保持する工程と、
上記加圧手段にて矩形状に保持されている巻装体
の積層端面にのみ耐熱性の接着剤を巻装体の層間
内に侵入しないように塗布し、かつ、上記接着剤
を焼鈍温度以下の温度で加熱硬化する工程と、接
着剤の加熱硬化後巻装体内から巻枠を除去する工
程と、接着剤の加熱硬化により矩形状に保持され
ている巻装体の一方の脚部に２分割したボビンを
回転可能に取付けてこのボビンに耐熱性の電線を
巻回して巻装体に励磁コイルを巻装する工程と、
上記励磁コイルを備えた巻装体を非晶質磁性薄帯
の焼鈍温度に適した温度で磁場焼鈍する工程と、
焼鈍後、巻装体から励磁コイルを除去する工程と
から成る変圧器鉄心の製造方法。1. A step of winding an amorphous magnetic ribbon around a winding frame a required number of times to form a substantially rectangular winding body, and pressing this winding body toward the center of the winding frame using a pressurizing means such as a press. holding the wrapped body under pressure in a rectangular shape;
A heat-resistant adhesive is applied only to the stacked end face of the winding body held in a rectangular shape by the pressure means so as not to penetrate between the layers of the winding body, and the adhesive is kept at a temperature below the annealing temperature. a step of heating and curing the adhesive at a temperature of a step of rotatably attaching the divided bobbin, winding a heat-resistant electric wire around the bobbin, and winding an excitation coil around the winding body;
magnetic field annealing the wound body equipped with the excitation coil at a temperature suitable for annealing the amorphous magnetic ribbon;
A method for manufacturing a transformer core comprising the steps of removing an excitation coil from a winding body after annealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19130982A JPS5979515A (en) | 1982-10-29 | 1982-10-29 | Manufacture of transformer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19130982A JPS5979515A (en) | 1982-10-29 | 1982-10-29 | Manufacture of transformer core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5979515A JPS5979515A (en) | 1984-05-08 |
| JPS6352762B2 true JPS6352762B2 (en) | 1988-10-20 |
Family
ID=16272412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19130982A Granted JPS5979515A (en) | 1982-10-29 | 1982-10-29 | Manufacture of transformer core |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5979515A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6154612A (en) * | 1984-08-24 | 1986-03-18 | Toshiba Corp | Manufacture of core |
| JPS61147517A (en) * | 1984-12-21 | 1986-07-05 | Takaoka Ind Ltd | Annealing method of transformer core |
| JPS6233411A (en) * | 1985-08-07 | 1987-02-13 | Mitsubishi Electric Corp | Manufacture of iron core |
| GB2221101A (en) * | 1988-06-13 | 1990-01-24 | Blum Gmbh & Co E | Iron core for electromagnetic apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104425A (en) * | 1980-01-24 | 1981-08-20 | Matsushita Electric Ind Co Ltd | Formation of amorphous magnetic alloy |
| JPS5754308A (en) * | 1980-08-11 | 1982-03-31 | Westinghouse Electric Corp | |
| JPS5877219A (en) * | 1981-10-31 | 1983-05-10 | Mitsubishi Electric Corp | Three-leg type iron core |
-
1982
- 1982-10-29 JP JP19130982A patent/JPS5979515A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56104425A (en) * | 1980-01-24 | 1981-08-20 | Matsushita Electric Ind Co Ltd | Formation of amorphous magnetic alloy |
| JPS5754308A (en) * | 1980-08-11 | 1982-03-31 | Westinghouse Electric Corp | |
| JPS5877219A (en) * | 1981-10-31 | 1983-05-10 | Mitsubishi Electric Corp | Three-leg type iron core |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5979515A (en) | 1984-05-08 |
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