JPH02246303A - Oil-immersed transformer tank and its manufacture - Google Patents
Oil-immersed transformer tank and its manufactureInfo
- Publication number
- JPH02246303A JPH02246303A JP6884189A JP6884189A JPH02246303A JP H02246303 A JPH02246303 A JP H02246303A JP 6884189 A JP6884189 A JP 6884189A JP 6884189 A JP6884189 A JP 6884189A JP H02246303 A JPH02246303 A JP H02246303A
- Authority
- JP
- Japan
- Prior art keywords
- corrugated
- welding
- heat sink
- oil
- corrugated heat
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000000463 material Substances 0.000 claims abstract description 55
- 238000003466 welding Methods 0.000 claims abstract description 45
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000003860 storage Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000012779 reinforcing material Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Transformer Cooling (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、波形放熱板を用いた油入変圧器タンクおよび
その製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an oil-immersed transformer tank using a corrugated heat sink and a method for manufacturing the same.
従来の技術
従来、波形放熱板を用いた変圧器のタンクでは、波形放
熱板を用いて変圧器タンクの形状に製作するために、波
形放熱板として前接左右の各辺それぞれに別のものを製
作し、その各波形放熱板をそれぞれの方向に配置して、
つなぎ合わせの溶接をコーナ一部で行なって変圧器タン
クの形状にするか、または波形放熱板を２枚製作し、そ
れを変圧器タンクの短辺方向にてつなぎ合わせて変圧器
タンクの形状に作り上げていた。すなわち、第６図に示
すようにコーナ一部を円弧の形状とした上縁材２および
下部の底板材３に巻取り治具４を取り付け、それになじ
ませるように各方向の面にそれぞれの波形放熱板１を取
り付け、その波形放熱板１を各コーナ一部で溶接を行な
い連結して変圧器タンクの形状に形成するか、または二
枚の波形欣然板１を上縁材２および底板材３になじませ
て、変圧器タンクの短辺方向の２ｇ！所で溶接し連結し
て変圧器タンクに製作していたのである。Conventional technology Conventionally, in transformer tanks using corrugated heat sinks, in order to manufacture the shape of the transformer tank using the corrugated heat sinks, separate corrugated heat sinks were placed on each of the left and right sides of the front. and place each corrugated heat sink in each direction.
Either weld a part of the corners to create the transformer tank shape, or create two corrugated heat sinks and join them together along the short sides of the transformer tank to create the transformer tank shape. I was making it up. That is, as shown in FIG. 6, a winding jig 4 is attached to the upper edge material 2 and the lower bottom plate material 3, each of which has an arc-shaped corner, and each waveform is applied to the surface in each direction so as to blend in with the upper edge material 2 and the lower bottom plate material 3. Either the heat sink 1 is attached and the corrugated heat sinks 1 are welded together at a part of each corner to form the shape of a transformer tank, or the two corrugated heat sinks 1 are connected by a top edge material 2 and a bottom plate material 3. 2g in the short side direction of the transformer tank! They were welded and connected on site to create a transformer tank.
発明が解決しようとする課題
しかし、このような従来の変圧器タンクの構造では、変
圧器タンクの各方向ごとにその長さに応じた波形放熱板
１を製造しなければならず、多くの種類の変圧器を製造
すればするほど、その波形放熱板１のｌ！１類も多（な
り、その管理が困難であった。さらに、波形放熱板の連
結部分が４箇所ないし２１１所あり、溶接にて連結して
いることにより、溶接不良によって油漏れの原因となる
ことがあった。また各方向の波形放熱板をつなぎ合わせ
る作業を行なう際に、作業者の手によって波形放熱板１
を上縁材２および底板材３に押さえつけなければならず
、肉体的負荷の大きい困難な作業であった。そして、波
の数の多い放熱板ではその重畳も大きなものになり、運
搬作業そのものも非常に困難なものになっていた。その
うえ波形放熱板１はアコーデオン状であり非常に薄い鋼
材を使用するため剛性がなく、形状の保持や運搬のため
に、第７図に示すように補強材５を取り付けなければな
らなか）た。以上のように、波形放熱板１を用いて変圧
器タンクを製作するには困難な問題がいくつか存在して
いた。Problems to be Solved by the Invention However, in such a conventional transformer tank structure, it is necessary to manufacture the corrugated heat sink 1 according to the length in each direction of the transformer tank, and there are many types of corrugated heat sinks. The more transformers we manufacture, the more l! of the corrugated heat sink 1! There were also many type 1 types (and it was difficult to manage them.Furthermore, there were 4 to 211 connecting parts of the corrugated heat sinks, and they were connected by welding, which could cause oil leaks due to poor welding. In addition, when joining the corrugated heat sinks in each direction, the workers manually connected the corrugated heat sinks to each other.
had to be pressed against the upper edge material 2 and the bottom plate material 3, which was a difficult and physically taxing task. Furthermore, in the case of heat sinks with a large number of waves, the superposition of waves becomes large, making the transportation process itself extremely difficult. Moreover, since the corrugated heat sink 1 has an accordion shape and is made of very thin steel material, it lacks rigidity, and in order to maintain its shape and transport it, reinforcing members 5 must be attached as shown in FIG. As described above, there are several difficult problems in manufacturing a transformer tank using the corrugated heat sink 1.
本発明はこれらの問題を解決するもので、１枚の波形放
熱板を用いた方形の油入変圧器タンク−およびその製造
方法を提供することを目的とする。The present invention solves these problems and aims to provide a rectangular oil-filled transformer tank using a single corrugated heat sink and a method for manufacturing the same.
課題を解決するための手段
上記＊ａを解決するために本発明の油入変圧器タンクは
、金属薄板を連続的に波形に折曲げて波形部を形成する
とともに、各波形部の内部を袋状の油導部とした１枚の
波形放熱板を、所定の形状に形成した上縁材および底板
材に巻付けて方形状に形成したものであり、本発明の油
入変圧器の製造方法は、タンクの上縁材および底板材を
波形欣然板の轡取り溶接装置に溶接治具を介して取付け
た後、金ｌＩ簿板を連続的に波形に折曲げて波形部を形
成するとともに、各波形部の端部を溶接した１枚の波形
放熱板をコンベア装置により前記巻取り溶接装置に供給
し、この巻取り溶接装置の回転軸を回転させて前記波形
放熱板を上縁材および底板材に巻付けると同時に、波形
放熱板押さえ装置で波形欣然板を上縁材および底板材に
密着させながら溶接することを特徴とするものである。Means for Solving the Problems In order to solve the above-mentioned *a, the oil-immersed transformer tank of the present invention has a thin metal plate that is continuously bent into a corrugated shape to form corrugated portions, and the inside of each corrugated portion is sealed. A method for manufacturing an oil-immersed transformer of the present invention is one in which a single corrugated heat dissipation plate with a shaped oil guide portion is wrapped around an upper edge material and a bottom plate material formed in a predetermined shape to form a rectangular shape. After attaching the upper edge material and the bottom plate material of the tank to the corrugated flat board welding device via a welding jig, the gold lI board is continuously bent into a corrugated shape to form a corrugated part, A corrugated heat sink with the ends of each corrugated section welded is supplied to the winding welding device by a conveyor device, and the rotating shaft of the winding welding device is rotated to separate the corrugated heat sink from the upper edge material and the bottom. The present invention is characterized in that, at the same time as being wrapped around the plate material, the corrugated heat dissipating plate is welded to the upper edge material and the bottom plate material while being brought into close contact with the upper edge material and the bottom plate material using a corrugated heat dissipating plate pressing device.
作用
上記の構成により、変圧器タンクに使用する波形放熱板
が一枚ものであるので溶接長が減少して溶接不良による
油洩れなどが激減し、また１枚ものの波形放熱板をコン
ベア装置により移動させて巻取り溶接装置に轡取らせる
ことで、運搬途中で波形欣然板を持ち上げたりするよう
な作業は無く、あわせて溶接作業時に、方形の変圧器タ
ンクの上縁材および底板材と波形欣然板との間の密着性
の向上が図れる。Effects With the above configuration, since the corrugated heat sink used for the transformer tank is a single piece, the welding length is reduced, and oil leakage due to poor welding is drastically reduced.In addition, the single corrugated heat sink can be moved by a conveyor device. By taking it up and feeding it to the welding device, there is no need to lift the corrugated plate during transportation, and during welding work, we can remove the corrugated plate from the top and bottom plates of the rectangular transformer tank. It is possible to improve the adhesion between the plate and the plate.
実施例
以下、本発明の実施例を添付図面にもとづいて説明する
。Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.
第１図は、本発明の一実施例の油入変圧器タンクの概略
斜視図、第２図は同油入変圧器タンクに用いる波形放熱
板の概略斜視図、第３図は同油入変圧器タンクの＠選方
法で用いる装置の概略斜視図、第４図は同装置の要部の
概略斜視図である。Fig. 1 is a schematic perspective view of an oil-immersed transformer tank according to an embodiment of the present invention, Fig. 2 is a schematic perspective view of a corrugated heat sink used in the oil-immersed transformer tank, and Fig. 3 is a schematic perspective view of an oil-immersed transformer tank according to an embodiment of the present invention. FIG. 4 is a schematic perspective view of the main parts of the device used in the method for selecting containers.
第１図において油入変圧器タンク１１は、上縁材１２の
下端部および底板材１３の上端部に、１枚の波形放熱板
１４を上端辺および下端辺でそれぞれ溶接し、かつ波形
放熱板１４の画先端縁同士も溶接して、四隅が丸味を有
する方形状に形成されている。波形放熱板１４は、第２
図にも示すように金属薄板１４ａを連続的に波形に折曲
げて波形部１４ｂを形成するとともに、各波形部１４ｂ
の端部１４Ｃを溶接して内部に油が入り込む油導部（図
示せず）を形成している。In FIG. 1, the oil-immersed transformer tank 11 has a corrugated heat sink 14 welded to the lower end of the upper edge material 12 and the upper end of the bottom plate material 13 at the upper and lower ends, respectively, and the corrugated heat sink The leading edges of the 14 images are also welded together to form a rectangular shape with rounded corners. The corrugated heat sink 14 has a second
As shown in the figure, the thin metal plate 14a is continuously bent into a waveform to form the waveform portions 14b, and each waveform portion 14b is
The end portion 14C is welded to form an oil guide portion (not shown) into which oil enters.
油入変圧器タンク１１を製造する際に用いる装置は、第
３図に示すように金属薄板を連続的に波形に折曲げて形
成される波形放熱板１４の両端部１４ｃの自動溶接＠Ｉ
！２１５と、形成した波形欣然板１４の保管棚１６と、
保＠＠１６から波形放熱板１４を移送するΩ−ラコンベ
アからなるコンベア装＠１７と、コンベア装置１７によ
り移送されてきた波形放熱板１４を上縁材１２および底
板材１３に巻付けて溶接する巻取り溶接装Ｗ１１８とを
備えている。The equipment used to manufacture the oil-immersed transformer tank 11 is automatic welding of both ends 14c of the corrugated heat sink 14, which is formed by continuously bending a thin metal plate into a corrugated shape, as shown in FIG.
! 215, a storage shelf 16 for the formed corrugated board 14,
A conveyor system @17 consisting of an Ω-ra conveyor transports the corrugated heat sink 14 from the storage @@16, and the corrugated heat sink 14 transferred by the conveyor device 17 is wrapped around the upper edge material 12 and the bottom plate material 13 and welded. It is equipped with a winding welding device W118.
この第３図に示す＠置による油入変圧器タンク１１の製
造は次のようにして行なう。すなわち、金！ＲＭ板を連
続的に波形に折曲げて波形＃ １４ｂを形成した波形放
熱板１４を両端部の自動溶接装置１５に供給し、ここで
端部１４ｃを溶接し、内部が袋状の油導部を形成した後
、保’ｒｇａ１ｅに送り込む。保管棚１６の１枚の波形
放熱板１４はコンベア装置１７により巻取り溶接装Ｗ１
１８に移送する。この巻取り溶接装置１８の回転軸１９
に、第５図に示す溶接治具２０を取り付け、この溶接治
具２０に上縁ｔ４１２および底板材１３を取り付ける。The oil-filled transformer tank 11 shown in FIG. 3 is manufactured in the following manner. Namely, money! The corrugated heat sink 14, which has been formed by continuously bending the RM plate into a corrugated shape, is supplied to the automatic welding device 15 at both ends, where the end portions 14c are welded, and the inside is formed into a bag-shaped oil guide section. After forming, it is sent to the storage room. One corrugated heat sink 14 of the storage shelf 16 is rolled up by the conveyor device 17 and is attached to the welding device W1.
Transfer to 18. Rotating shaft 19 of this winding welding device 18
Then, the welding jig 20 shown in FIG. 5 is attached, and the upper edge t412 and the bottom plate material 13 are attached to this welding jig 20.
溶接治具２０には波板位置固定用のばね材２０ａを取り
付けてあり、保管＠１６からコンベア装置１７により移
送してきた波形放熱板１４の第一番目の波形１４ｂを、
巻取り溶接装置１８に取り付けた溶接泊Ｒ２０の位Ｍ固
定用の前記ばね材２０ａに取り付け、これを起点として
、第４図に示すように巻取り溶接装置１８の回転軸１９
を回転させて波形放熱板１４を上縁材１２および底板材
１３に巻付けながら溶接を行ない、四隅が丸味を有する
方形状の油入変圧器タンクの形状に製作するのである。A spring material 20a for fixing the position of the corrugated plate is attached to the welding jig 20, and the first waveform 14b of the corrugated heat sink 14 transferred from the storage@16 by the conveyor device 17 is
The welding head R20 attached to the winding welding device 18 is attached to the spring material 20a for fixing M, and using this as a starting point, the rotating shaft 19 of the winding welding device 18 is rotated as shown in FIG.
Welding is performed while rotating the corrugated heat dissipating plate 14 around the upper edge material 12 and the bottom plate material 13, thereby producing a rectangular oil-immersed transformer tank shape with rounded corners.
このとき巻取り溶接装置！１８に取り付けられたエアー
シリンダによる波形放熱板押さえ装置２１によって波形
放熱板１４を押さえつけて、上縁材１２と底板材１３と
に密着させて溶接し、形状保持を確実に、かつ容易に行
なうことができるのである。At this time, the winding welding device! The corrugated heat sink 14 is pressed down by a waveform heat sink holding device 21 using an air cylinder attached to the wafer 18, and the top edge material 12 and the bottom plate material 13 are welded in close contact with each other to reliably and easily maintain the shape. This is possible.
本実施例の油入変圧器タンク１１は、１枚の波形放熱板
１４を用いて形成しているので、従来に比べて溶接箇所
が少なく、溶接不良による油洩れなどの欠陥を生じるこ
とが少なく、検査作業時間も低減できる。またこの油入
変圧器タンク１１の製造方法では、１枚の波形欣然板１
４を用いてコンベア装置１７により巻取り溶接装Ｗ１１
８に移送し、かつ波形放熱板押さえ装置２１により波形
放熱板１４を上縁材１２および底板材１３へ密！させつ
つ溶接でき、確実、かつ容易に、無駄な労力を要せずに
、高品質のものを＠造できる。さらに波形欣然板１４を
コンベア装置１７により移送するので、従来のような補
強材を取付ける必要がなく、材料と手間を低減できる。Since the oil-immersed transformer tank 11 of this embodiment is formed using a single corrugated heat sink 14, there are fewer welding points than in the past, and defects such as oil leakage due to poor welding are less likely to occur. , inspection work time can also be reduced. In addition, in this method of manufacturing the oil-filled transformer tank 11, one corrugated plate 1
The winding welding device W11 is rolled up by the conveyor device 17 using
8, and tightly press the corrugated heat sink 14 onto the upper edge material 12 and the bottom plate material 13 using the corrugated heat sink presser 21! Welding can be performed while the welding process is being performed, and high-quality products can be produced reliably and easily without wasted labor. Furthermore, since the corrugated board 14 is transported by the conveyor device 17, there is no need to attach reinforcing materials as in the conventional case, and the materials and labor can be reduced.
発明の効果
以上のように本発明の油入変圧器タンクにおいては、波
形放熱板を持つ油入変圧器タンクを波形放熱板−枚のみ
で形成したものであり、またその製造方法においては、
波形放熱板の波の端部の溶接から巻取り溶接＠置まで波
形放熱板をコンベア装置により移送し、かつこの波形放
熱板を上縁材および底板材へ機械的に巻付けるとともに
、波形放熱板押さえ装置により波形放熱板を上縁材およ
び底板材にＶＢ看させて溶接するので、従来の波形放熱
板を４枚ないし２枚組み合わせたものに比べ、溶接長が
短かく溶接材料の低減および油漏れを起こしやすい箇所
の低減となり、また検査作業時間の低減となり、さらに
製造方法において１１Ｒ作業で作業者の肉体的負荷をか
けることがなく、組み立て作業時間が短縮し、かつコン
ベア装置上を移動するだけで形状の保持が容易であるこ
とにより、波形欣然板に補強材を取り付ける必要がなく
、材料と作業時間を低減でき、品質性能のすぐれた油入
変圧器タンクを短時間に、かつ安価に製造することがで
きる。Effects of the Invention As described above, in the oil-immersed transformer tank of the present invention, the oil-immersed transformer tank having a corrugated heat sink is formed only from the corrugated heat sink, and in the manufacturing method thereof,
The corrugated heat sink is transported by a conveyor device from the welding of the corrugated end of the corrugated heat sink to the winding and welding @ position, and the corrugated heat sink is mechanically wrapped around the top edge material and the bottom plate material, and the corrugated heat sink is Since the corrugated heat sink is welded to the top edge material and the bottom plate material using a holding device, the welding length is shorter and welding material is reduced and oil is reduced compared to conventional combinations of four or two corrugated heat sinks. This reduces the number of leak-prone areas, reduces inspection work time, and also eliminates the physical stress on workers during 11R work in the manufacturing method, shortens assembly work time, and allows for easy movement on conveyor equipment. Because it is easy to maintain its shape with just one piece, there is no need to attach reinforcing material to the corrugated plate, which reduces the amount of materials and work time required, and allows for the production of oil-immersed transformer tanks with excellent quality and performance in a short time and at low cost. can be manufactured.
第１図は本発明の一実施例の油入変圧器タンクの概略斜
視図、第２図は同油入変圧器タンクに用いる波形放熱板
の概略斜視図、第３図は同油入変圧器タンクの製造方法
で用いる装置の概略斜視図、第４図は同装置の要部のＩ
！略ｔ４視図、第５図は同製造方法で用いる溶接治具の
概略斜視図、第６図は従来の油入変圧器タンクの分解斜
視図、第７図は従来の波形放熱板の概１ＲｔＲ視図であ
る。
１１・・・油入変圧器タンク、１２・・・上縁材、１３
・・・底板材、１４・・・波形欣然板、１４ａ・・・金
属薄板、１４ｂ・・・波形部、１４ｃ・・・端部、１５
・・・自動溶接装置、１７・・・コンベア装置、１８・
・・巻取りｒｆｊ接装置、１９・・・回転軸、２０・・
・溶接治具、２１・・・波形放熱板押さえ装置。
代理人 森 本 鶴 弘
第
図
第２
図
第４図Fig. 1 is a schematic perspective view of an oil-filled transformer tank according to an embodiment of the present invention, Fig. 2 is a schematic perspective view of a corrugated heat sink used in the oil-filled transformer tank, and Fig. 3 is a schematic perspective view of the same oil-filled transformer tank. A schematic perspective view of the equipment used in the tank manufacturing method, FIG. 4 is an I of the main part of the equipment
! Fig. 5 is a schematic perspective view of a welding jig used in the same manufacturing method, Fig. 6 is an exploded perspective view of a conventional oil-immersed transformer tank, and Fig. 7 is an approximate 1RtR of a conventional corrugated heat sink. This is a perspective view. 11... Oil-filled transformer tank, 12... Upper edge material, 13
...Bottom plate material, 14...Corrugated smooth plate, 14a...Metal thin plate, 14b...Corrugated part, 14c...End part, 15
... Automatic welding device, 17... Conveyor device, 18.
... Winding rfj contact device, 19... Rotating shaft, 20...
- Welding jig, 21... corrugated heat sink holding device. Agent Hiroshi Tsuru Morimoto Figure 2 Figure 4
Claims (2)
するとともに、各波形部の内部を袋状の油導部とした１
枚の波形放熱板を、所定の形状に形成した上縁材および
底板材に巻付けて方形状に形成した油入変圧器タンク。1. A thin metal plate is continuously bent into a corrugated shape to form a corrugated part, and the inside of each corrugated part is made into a bag-shaped oil guide part1.
An oil-immersed transformer tank formed into a rectangular shape by wrapping two corrugated heat sinks around an upper edge material and a bottom plate material formed into a predetermined shape.
り溶接装置に溶接治具を介して取り付けた後、金属薄板
を連続的に波板に折曲げて波形部を形成するとともに、
各波形部の端部を溶接した１枚の波形放熱板をコンベア
装置により前記巻取り溶接装置に供給し、この巻取り溶
接装置の回転軸を回転させて前記波形放熱板を上縁材お
よび底板材に巻付けると同時に、波形放熱板押さえ装置
で波形放熱板を上縁材および底板材に密着させながら溶
接することを特徴とする油入変圧器タンクの製造方法。2. After attaching the upper edge material and bottom plate material of the tank to a winding and welding device for a corrugated heat sink via a welding jig, the thin metal plate is continuously bent into a corrugated plate to form a corrugated part.
A corrugated heat sink with the ends of each corrugated section welded is supplied to the winding welding device by a conveyor device, and the rotating shaft of the winding welding device is rotated to separate the corrugated heat sink from the upper edge material and the bottom. A method for manufacturing an oil-immersed transformer tank, characterized in that the corrugated heat sink is wrapped around a plate material and at the same time welded while the corrugated heat sink is brought into close contact with the upper edge material and the bottom plate material using a corrugated heat sink holding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6884189A JPH02246303A (en) | 1989-03-20 | 1989-03-20 | Oil-immersed transformer tank and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6884189A JPH02246303A (en) | 1989-03-20 | 1989-03-20 | Oil-immersed transformer tank and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02246303A true JPH02246303A (en) | 1990-10-02 |
Family
ID=13385321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6884189A Pending JPH02246303A (en) | 1989-03-20 | 1989-03-20 | Oil-immersed transformer tank and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02246303A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009267184A (en) * | 2008-04-28 | 2009-11-12 | Daihen Corp | Method of manufacturing transformer case |
| CN106112561A (en) * | 2016-08-26 | 2016-11-16 | 特变电工集团衡阳电气装备有限公司 | A kind of American transformer oil box assembly line and production method thereof |
| CN109637799A (en) * | 2019-02-19 | 2019-04-16 | 江苏北辰互邦电力股份有限公司 | A kind of oil-immersed transformer assembly method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53126104A (en) * | 1977-04-11 | 1978-11-04 | Kawasaki Yuko Kk | Method of forming corrugated plate for motors* transformers and the like |
| JPS5914742A (en) * | 1982-07-14 | 1984-01-25 | 駒居 正一 | Automatic cuttlefish cutting machine |
-
1989
- 1989-03-20 JP JP6884189A patent/JPH02246303A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53126104A (en) * | 1977-04-11 | 1978-11-04 | Kawasaki Yuko Kk | Method of forming corrugated plate for motors* transformers and the like |
| JPS5914742A (en) * | 1982-07-14 | 1984-01-25 | 駒居 正一 | Automatic cuttlefish cutting machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009267184A (en) * | 2008-04-28 | 2009-11-12 | Daihen Corp | Method of manufacturing transformer case |
| CN106112561A (en) * | 2016-08-26 | 2016-11-16 | 特变电工集团衡阳电气装备有限公司 | A kind of American transformer oil box assembly line and production method thereof |
| CN106112561B (en) * | 2016-08-26 | 2019-05-10 | 特变电工集团衡阳电气装备有限公司 | A kind of transformer oil box assembly line and its production method |
| CN109637799A (en) * | 2019-02-19 | 2019-04-16 | 江苏北辰互邦电力股份有限公司 | A kind of oil-immersed transformer assembly method |
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