JPS6022447A - Manufacture of core for electric apparatus - Google Patents
Manufacture of core for electric apparatusInfo
- Publication number
- JPS6022447A JPS6022447A JP12799683A JP12799683A JPS6022447A JP S6022447 A JPS6022447 A JP S6022447A JP 12799683 A JP12799683 A JP 12799683A JP 12799683 A JP12799683 A JP 12799683A JP S6022447 A JPS6022447 A JP S6022447A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- laminated
- coating
- plates
- steel plates
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はモータコア、変圧器コア等の電気機器鉄心の製
造方法に係り、特に積層鋼板の熱処理時に生じる各層間
の焼付き現象を防止した電気機器鉄心の製造方法に関す
る。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for manufacturing cores for electrical equipment such as motor cores and transformer cores, and particularly relates to electrical equipment that prevents the seizure phenomenon between layers that occurs during heat treatment of laminated steel plates. Concerning a method for manufacturing iron cores.
従来、電気機器鉄心、例えばモータコアの製造方法とし
て次のようなものが知られている。まず、表面にコーテ
ィングを有する帯状のケイ素鋼板をプレス機等の抜型で
所定形状に打抜き、これを所要枚数積層した後、鉄損値
低減等の電気的特性を向上するために焼鈍等の熱処理を
施しモータコアを作っていた。BACKGROUND ART Conventionally, the following methods are known as methods for manufacturing electrical equipment cores, such as motor cores. First, a band-shaped silicon steel plate with a coating on the surface is punched into a predetermined shape using a cutting die such as a press machine, and after laminating the required number of sheets, heat treatment such as annealing is performed to improve electrical properties such as reducing iron loss value. They were making alms motor cores.
そして、価格低下を図るべく、ケイ素鋼板に比べて廉価
な構造用鋼板（５ｐｃｃ ）を使用してモータコアを製
造する方法も提案されている。In order to reduce the price, a method has also been proposed in which the motor core is manufactured using structural steel plate (5 pcc), which is cheaper than silicon steel plate.
構造用鋼板は、その化学成分が、例えばＣ・・・０．０
６１％、８ ｉ ・・・０．０１ ＴｏｌＭｎ ・・・
０．２６ ｓ、 Ｐ −・・０．００９チ、Ｓ・・・０
．００２チ、Ｆｅ・・・残り、からなるもので、用途が
構造用であるため、ケイ素鋼板のように当初から表面に
コーテングされていない。このため、構造用鋼板をケイ
素鋼板と同じように打抜き積層した後、焼鈍しを行なう
と、ケイ素鋼板ではその表面に焼鈍し温度よりも高い耐
熱温度のコーテイング材が施こされているため各積層間
で焼付き現象をおこさないが、構造用鋼板ではその表面
がコーティングされていないので、焼付きをおこす。各
積層間に焼付き現象が生じると、モータコアに交番磁界
が与えられた場合、焼付き箇所にうず電流が流れ、鉄損
が生じて機器の出力を低下させる等の急影響を与える。The chemical composition of the structural steel plate is, for example, C...0.0
61%, 8i...0.01 TolMn...
0.26 s, P -...0.009 chi, S...0
．． 002, Fe...the rest, and because it is used for structural purposes, it is not coated on the surface from the beginning like silicon steel sheets. For this reason, when structural steel plates are punched and laminated in the same way as silicon steel plates and then annealed, each lamination is difficult because silicon steel plates have a coating material on their surface that has a heat-resistant temperature higher than the annealing temperature. However, since the surface of structural steel plates is not coated, seizure occurs. When a seizure phenomenon occurs between the laminated layers, when an alternating magnetic field is applied to the motor core, eddy currents flow to the seizure location, causing iron loss and having sudden effects such as reducing the output of the device.
そこで、上記のような焼付きを防止するため、次のよう
な方法でモータコアを製造している。まず、作業性をま
し品質を安定化させるために、パンチング・オイルに混
ぜた離形剤を打抜き後の構造用鋼板上に点滴し、該構造
用鋼板を、炉内における占積率及び熱処理の効率を高め
るために所要枚数積層して炉内で焼鈍しする。この際、
各積層間に離形剤が付着しているため、４暁付が防止で
きる。次いで積層コイルを振動させて各鋼板を分離し、
鉄損測定装置で各鋼板の鉄損値を測定して許容値以上の
ものを除き、再び積層してモータコアとして組立てる。Therefore, in order to prevent the above-mentioned seizure, motor cores are manufactured using the following method. First, in order to improve workability and stabilize quality, a mold release agent mixed with punching oil is dripped onto the structural steel plate after punching, and the structural steel plate is controlled by the space factor and heat treatment in the furnace. To increase efficiency, the required number of sheets are laminated and annealed in a furnace. On this occasion,
Since a mold release agent is attached between each laminated layer, it is possible to prevent smearing. Next, the laminated coil is vibrated to separate each steel plate,
The iron loss value of each steel plate is measured using an iron loss measuring device, those exceeding the allowable value are removed, and then the steel plates are laminated again and assembled into a motor core.
しかしながら、この種の製造方法にあっては、モータコ
アが大きくなると、加振および鉄損測定が困難になり、
中形や大形モータ等に構造用鋼板を使用すればケイ素板
に比べてかえって製造費が高くなり、これらのものに構
造用鋼板を使用できないという欠点があった。However, with this type of manufacturing method, as the motor core becomes larger, it becomes difficult to excite and measure iron loss.
If structural steel plates were used for medium-sized or large-sized motors, the manufacturing cost would be higher than that for silicon plates, and there was a drawback that structural steel plates could not be used for these products.
本発明は、以上のような欠点を除去するためになされた
ものであって、価格の安い構造用鋼板を使用して比較的
大形の電気機器鉄心を簡単な工程かつ低価かつ低価格で
製造できる電気機器鉄心の製造方法を提供することを目
的とする。The present invention has been made in order to eliminate the above-mentioned drawbacks, and uses inexpensive structural steel plates to produce relatively large electrical equipment cores in a simple process and at low cost. The purpose of the present invention is to provide a manufacturing method for an electrical equipment core that can be manufactured.
この目的を達成するために、本発明では、表面にコーテ
ィングのない構造用鋼板と表面にコーティングを有する
鋼板を所定形状に打抜き、各々交互に所要枚数積層した
後、熱処理を行なうことを特徴とする。In order to achieve this objective, the present invention is characterized in that a structural steel plate without a coating on the surface and a steel plate with a coating on the surface are punched into a predetermined shape, and after the required number of sheets of each are laminated alternately, heat treatment is performed. .
（３） 〔発明の実施例〕 以下、添付図面を参照しつつ本発明の詳細な説明する。(3) [Embodiments of the invention] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
第１図及び第２図はこの実施例に係る電気機器鉄心、例
えばモータコアの製造方法を説明するためのものである
。まず、コイル状に巻回した表面にコーティングの施こ
されていない構造用鋼板１と、表面に耐熱性のコーティ
ングが施こされた鋼板、例えばケイ素鋼板２とを重ね合
わせてプレス機３に導入し、該プレス３で構造用鋼板１
及びケイ素鋼板２を同時に順次所定形状に打抜き、銅板
１と２を交互に所要枚数積層する（第２図参照）。FIGS. 1 and 2 are for explaining a method of manufacturing an electrical equipment core, such as a motor core, according to this embodiment. First, a structural steel plate 1 that has been wound into a coil and has no coating on its surface, and a steel plate that has a heat-resistant coating on its surface, such as a silicon steel plate 2, are superimposed and introduced into a press machine 3. Then, the press 3 presses the structural steel plate 1.
and silicon steel plates 2 are simultaneously punched into a predetermined shape, and the required number of copper plates 1 and 2 are laminated alternately (see FIG. 2).
この積層された銅板４は熱処理を行なうためにシュート
５等により炉６内へ搬入される。炉６内では、例えば７
５０℃で２時間加熱した後所定時間放置して焼鈍を行な
い、モータコアの製造を終る。The laminated copper plates 4 are carried into a furnace 6 through a chute 5 or the like for heat treatment. In the furnace 6, for example, 7
After heating at 50° C. for 2 hours, annealing is performed by leaving it for a predetermined time to complete the manufacture of the motor core.
このような製造方法によれば、積層鋼板４の各層間にケ
イ素鋼板２の両面に施こした耐熱性コーテイング材が介
在するため、これに熱処理を行なって焼鈍しを行なえば
、従来のケイ素銅板のみのモ（４）
一タコアと同様に精度良く焼鈍しでき、しかも各積層間
の焼付きが簡単に防止できる。従って、従来の構造用鋼
板のみのモータコアのよ５に、ｆｉ鈍し後に振動を与え
て各積層間を分離したり、各鋼板の鉄損測定を行なって
焼鈍し状態を検査する必要もなく、また価格の安い構造
用鋼板１を使用しているため、モータコアの価格を下げ
ることが可能となる。さらに、２枚の鋼板１，２が１台
のプレス機３で同時に打抜かれるため、従来通常行なわ
れている１枚打抜きに比ベモータコアの生産性が向上す
る。According to this manufacturing method, since the heat-resistant coating material applied to both sides of the silicon steel plate 2 is interposed between each layer of the laminated steel plate 4, if this is heat-treated and annealed, it can be replaced with a conventional silicon copper plate. Chisel (4) It can be annealed with the same precision as the one-tako core, and seizing between the laminated layers can be easily prevented. Therefore, there is no need to apply vibration to the conventional motor core made only of structural steel plates to separate the laminated layers after fi-annealing, or to measure the iron loss of each steel plate to inspect the annealed state. Furthermore, since the structural steel plate 1, which is inexpensive, is used, it is possible to reduce the price of the motor core. Furthermore, since the two steel plates 1 and 2 are simultaneously punched out by one press machine 3, the productivity of the motor core is improved compared to the conventional single sheet punching process.
第３図及び第４図は他の実施例に係るモータコアの製造
方法を説明するためのものである。この製造方法は、第
３図に示すように２台のプレス機３１ ｅ ３ｆｆｉを
用い、この２台のプレス機３１ ＋ ３ｇでそれぞれ構
造用鋼板１とケイ素鋼板２を所定の形に打抜き、積層機
１０により鋼板１と２を交互に積層した後、この積層鋼
板４に熱処理を施すようにしている。ここで積層機１０
は、例えば第４図に示すように、本体１１と、垂直軸１
２と、該垂直軸１２に約４５°の水平方向の回転と垂直
方向の摺動を自在にして取付けられた２本のアーム１３
、１４とで構成される。そしてプレス機３１と３２で
打抜かれ積層された積層状の構造用鋼板４１とケイ素鋼
板４２は、積層機１０のアーム１３と１４により上から
順に持ち上げられガイド部材１５に順次積み上げられる
。3 and 4 are for explaining a method of manufacturing a motor core according to another embodiment. This manufacturing method uses two press machines 31 e 3ffi as shown in Fig. 3, and these two press machines 31 + 3 g punch out a structural steel plate 1 and a silicon steel plate 2 into predetermined shapes, and stack them. After the steel plates 1 and 2 are alternately laminated by a machine 10, the laminated steel plates 4 are subjected to heat treatment. Here, the laminating machine 10
For example, as shown in FIG.
2, and two arms 13 attached to the vertical shaft 12 so as to be able to freely rotate about 45 degrees in the horizontal direction and slide in the vertical direction.
, 14. The laminated structural steel plates 41 and silicon steel plates 42 punched and laminated by the presses 31 and 32 are lifted in order from above by the arms 13 and 14 of the lamination machine 10 and stacked on the guide member 15 one after another.
しかる後、この積層鋼板４が炉内へ搬入され熱処理が行
なわれる。この実施例では、２台のプレス機３１と３２
を用いて鋼板１と２をそれぞれ打抜くようにしているた
め、プレス機３１ 、３２の容量を小さくできる利点が
ある。Thereafter, this laminated steel plate 4 is carried into a furnace and heat treated. In this embodiment, two press machines 31 and 32 are used.
Since the steel plates 1 and 2 are punched out using a press machine, there is an advantage that the capacity of the press machines 31 and 32 can be reduced.
なお、鋼板１と２を１台のプレス機３で打抜き、第４図
に示すように鋼板１と２を別々に積層しておいて積層機
１０で鋼板１と２を交互に積層した後、熱処理を行なう
ようにしてもよい。しかしこの製造方法では第１図及び
第３図の方法に比べ、生産性が劣るという欠点がある。Note that the steel plates 1 and 2 are punched out using one press machine 3, the steel plates 1 and 2 are laminated separately as shown in FIG. Heat treatment may also be performed. However, this manufacturing method has the disadvantage that productivity is inferior to the methods shown in FIGS. 1 and 3.
なお、上記実施例では電気機器鉄心としてモータコアの
製造方法を説明したが、本発明では、他の電気機器鉄心
、例えば変圧器鉄心等の製造方法についても適用できる
ことはいうまでもない。In the above embodiments, a method of manufacturing a motor core as an electrical equipment core has been described, but it goes without saying that the present invention can also be applied to a method of manufacturing other electrical equipment cores, such as transformer cores.
以上説明したように、本発明では、コーティングのない
構造用鋼板と表面にコーティングを有する鋼板とを所定
形状に打抜き、各々交互に積層した後、熱処理を行なう
ようにしたので、熱処理前の積層鋼板の各層間にはコー
テイング材が介在するため、熱処理によって各層間の焼
付が簡単に防止でき、また価格の安い構造用鋼板を使用
できるため電気機器鉄心の価格を下げることが可能とな
る。As explained above, in the present invention, a structural steel plate without a coating and a steel plate with a coating on the surface are punched into a predetermined shape, and after being laminated alternately, heat treatment is performed, so that the laminated steel plate before heat treatment Since there is a coating material between each layer, seizure between the layers can be easily prevented by heat treatment, and inexpensive structural steel plates can be used, making it possible to lower the price of electrical equipment cores.
第１図は本発明の実施例に係る電気機器鉄心の製造方法
を説明するための図、第２図は第１図中の積層鋼板の拡
大図、第３図は他の実施例に係る電気機器鉄心の製造方
法を説明するための図、第４図は第３図中の積層機の概
略説明図である。
１・・・構造用鋼板、２・・・鋼板、３ ＊ ａ、 ｓ
３２・・・プレス機、４ ＊ ４１ ｔ ４２・・・
積層鋼板、６・・・炉、１０・・・積層機。
出願人代理人 猪 股 清
手続補正書
昭和団年ｌθ月４日
特許庁長官 若 杉 和 夫 殿
昭和団年特許願第１２７９９６号
２、発明の名称
電気機器鉄心の製造方法
３、補正をする者
事件との関係 特許出願人
（６６２）株式会社 費用電機製作所
明細書の「発明の詳細な説明」の欄。
８、補正の内容
明細書、３頁１９行目の「コイル」を、「：２ア」オ式
補正する。 １ｒが５ご
５ん〜FIG. 1 is a diagram for explaining a method of manufacturing an electrical equipment iron core according to an embodiment of the present invention, FIG. 2 is an enlarged view of a laminated steel plate in FIG. 1, and FIG. FIG. 4, which is a diagram for explaining the method for manufacturing the equipment core, is a schematic explanatory diagram of the laminating machine in FIG. 3. 1... Structural steel plate, 2... Steel plate, 3 * a, s
32...Press machine, 4 * 41 t 42...
Laminated steel plate, 6... Furnace, 10... Laminating machine. Applicant's agent Kiyoshi Inomata Procedural amendment dated 19th month, Showa period, 4th month, Showa period, Director of the Japan Patent Office, Kazuo Wakasugi, Showa period patent application No. 127996 2, Title of invention: Process for manufacturing electrical equipment iron core 3, Person making the amendment Relationship to the case: Patent applicant (662) Kosuku Denki Seisakusho Co., Ltd. “Detailed description of the invention” column of the specification. 8. Correct "Coil" on page 3, line 19 of the description of the correction using the ":2A" method. 1r is 5 go 5 ~
Claims (3)
ーティングを有する鋼板を所定形状に打抜き、各々交互
に所要枚数積層した後、熱処理を行なうことを特徴とす
る電気機器鉄心の製造方法。(1) A method for manufacturing an electrical equipment core, which comprises punching a structural steel plate without a coating on its surface and a steel plate with a coating on its surface into a predetermined shape, alternately stacking the required number of sheets of each, and then heat-treating the sheets.
ングを有する鋼板を重ね合わせ同時に所定形状に打抜く
ようにした特許請求の範囲第１項記載の電気機器鉄心の
製造方法。(2) A method for manufacturing an electrical equipment core according to claim 1, wherein a steel plate without a coating on the surface and a steel plate with a coating on the surface are overlapped and simultaneously punched into a predetermined shape.
した特許請求の範囲第１項または第２項記載の電気機器
鉄心の製造方法。(3) The method for manufacturing an electrical equipment core according to claim 1 or 2, wherein the steel plate having a coating on its surface is a silicon steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12799683A JPS6022447A (en) | 1983-07-15 | 1983-07-15 | Manufacture of core for electric apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12799683A JPS6022447A (en) | 1983-07-15 | 1983-07-15 | Manufacture of core for electric apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6022447A true JPS6022447A (en) | 1985-02-04 |
Family
ID=14973869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12799683A Pending JPS6022447A (en) | 1983-07-15 | 1983-07-15 | Manufacture of core for electric apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6022447A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654487A (en) * | 1992-07-30 | 1994-02-25 | Sankyo Seiki Mfg Co Ltd | Heat treatment of core for motor |
| DE102012102177A1 (en) | 2011-03-18 | 2012-09-20 | Fuji Jukogyo K.K. | Rotating electrical machine |
-
1983
- 1983-07-15 JP JP12799683A patent/JPS6022447A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0654487A (en) * | 1992-07-30 | 1994-02-25 | Sankyo Seiki Mfg Co Ltd | Heat treatment of core for motor |
| DE102012102177A1 (en) | 2011-03-18 | 2012-09-20 | Fuji Jukogyo K.K. | Rotating electrical machine |
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