JP2852121B2 - Manufacturing method of tubular container - Google Patents
Manufacturing method of tubular containerInfo
- Publication number
- JP2852121B2 JP2852121B2 JP2329013A JP32901390A JP2852121B2 JP 2852121 B2 JP2852121 B2 JP 2852121B2 JP 2329013 A JP2329013 A JP 2329013A JP 32901390 A JP32901390 A JP 32901390A JP 2852121 B2 JP2852121 B2 JP 2852121B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- flange
- branch pipe
- welding
- joined
- 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 - Fee Related
Links
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- Butt Welding And Welding Of Specific Article (AREA)
- Laser Beam Processing (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は管状容器の製作方法に係り、特に、胴管に分
岐管が溶接接合されてなる管状容器の端部にフランジが
溶接接合されて形成されるものに好適な管状容器の製作
方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a tubular container, and more particularly, to a method for manufacturing a tubular container by welding a flange to an end of a tubular container obtained by welding a branch pipe to a body tube. The invention relates to a method for producing a tubular container suitable for being formed.
例えばガス絶縁開閉装置を構成する各種機器は、主回
路を構成する導電部をシースと呼ばれる管状の容器で覆
われているのが普通である。この管状容器は、容器端部
へフランジを接合する必要があり、この接合としてアー
ク溶接が知られている。For example, in various devices constituting a gas insulated switchgear, a conductive part constituting a main circuit is usually covered with a tubular container called a sheath. This tubular container requires a flange to be joined to the container end, which is known as arc welding.
しかし、このアーク溶接は、気密を確保するために完
全溶込み溶接が必要であり、更に精度が要求される場合
には、溶接時の熱収縮による変形が発生するので、機械
加工部の精度を守るため、溶接後にフランジ面を機械加
工する必要があった。However, this arc welding requires full penetration welding to ensure airtightness, and if further accuracy is required, deformation due to heat shrinkage during welding occurs. To protect, it was necessary to machine the flange surface after welding.
一方、パイプとフランジを接合する際にレーザ溶接を
用いるものとしては、例えば特開昭59−189092号公報が
挙げられる。On the other hand, as an example using laser welding when joining a pipe and a flange, Japanese Patent Application Laid-Open No. 59-189092 is cited.
上記従来技術、特に特開昭59−189092号公報では、フ
ランジとパイプ（以下、胴管と記す）の接合方法を、単
にアーク溶接からレーザ溶接へと変えた場合の作業方法
を提供した例であり、実際の管状容器の構成と製作法に
ついては全く考慮されておらず、一般に使用されている
分岐管を有する管状容器、特にガス絶縁開閉装置用シー
スの様な分岐管を多数有しているものについては全く考
慮されてない。このため、分岐管を有する管状容器の製
作には、依然としてアーク溶接が主に用いられている。The above prior art, particularly Japanese Patent Application Laid-Open No. 59-189092, provides an example in which a method of joining a flange and a pipe (hereinafter, referred to as a body tube) is simply changed from arc welding to laser welding. Yes, the configuration and manufacturing method of the actual tubular container are not considered at all, and there are a large number of tubular containers having a commonly used branch tube, particularly a branch tube such as a sheath for a gas insulated switchgear. Things are not considered at all. For this reason, arc welding is still mainly used for manufacturing a tubular container having a branch pipe.
しかしながら、アーク溶接を用いて胴管とフランジを
溶接すると、溶接熱によりフランジの倒れが発生し、予
歪を与える必要が生じる。従って、容器の精度を出すに
は、溶接後にフランジの機械加工が必要とされ、多大の
工数がかかり、問題となっていた。However, if the body tube and the flange are welded by arc welding, the flange will collapse due to welding heat, and it will be necessary to give prestrain. Therefore, in order to improve the accuracy of the container, machining of the flange is required after welding, which requires a lot of man-hours, which has been a problem.
特に、分岐管と胴管を溶接後、分岐管と胴管の端部の
精度を出さないと、フランジとの接合が困難となる為、
端部の加工が必要であるが、フランジ接合に際しての、
フランジの変形は避けられず、溶接後、フランジ面の平
坦度、傾き、フランジ間の寸法など機械加工により精度
を維持する必要が有り製作上大きな問題となっていた。In particular, after welding the branch pipe and the body pipe, if the accuracy of the end of the branch pipe and the body pipe is not obtained, it is difficult to join with the flange,
Processing of the end is necessary.
Deformation of the flange is inevitable, and after welding, it is necessary to maintain accuracy by machining such as flatness of the flange surface, inclination, dimensions between the flanges, which has been a major problem in manufacturing.
また、溶接後の機械加工で上記問題を解決しようとす
ると、フランジの素材板厚を厚くし、削り代の量で変形
を吸収する必要があり、容器の完成時にフランジの板厚
のばらつきが大きく、容器同士の接続、あるいはフラン
ジにカバーを取付ける場合においても、フランジの板厚
に応じた長さのボルトを使用する必要があり、組立作業
時に、フランジの局部的な厚みを確かめる必要があっ
た。更に、複数のフランジ面を切削する場合、最後に切
削する部分に変形の影響が集積され、同一径のフランジ
でも、仕上りの厚さに大きな差が出る問題があった。し
かも、フランジの仕上り厚さのばらつきを抑えるため、
溶接後の整形作業にも多大の労力を費やしていた。In order to solve the above problem by machining after welding, it is necessary to increase the thickness of the material of the flange and absorb the deformation with the amount of shaving allowance. Even when connecting between containers or attaching a cover to the flange, it was necessary to use bolts of a length corresponding to the thickness of the flange, and it was necessary to check the local thickness of the flange during assembly work . Furthermore, when a plurality of flange surfaces are cut, the influence of deformation is accumulated in the last cut portion, and there is a problem that a large difference in finished thickness occurs even with flanges having the same diameter. Moreover, in order to reduce the variation in the finished thickness of the flange,
A great deal of labor was also spent on shaping work after welding.
一方、上記従来技術は、容器が大型となった場合、フ
ランジが多向に付いているため、一面切削しては次の面
の加工に移るので、フランジ加工の為に大型で高精度の
機械が必要であり、溶接前に機械加工を実施する効果が
薄れてしまう。On the other hand, in the above-mentioned conventional technology, when the container becomes large, since the flange is attached in many directions, one surface is cut and then the next surface is processed. Is required, and the effect of performing machining before welding is reduced.
本発明は上述の点に鑑みなされたもので、その目的と
するところは、分岐間を有する容器の胴管、及び分岐間
の各端部にフランジを接合するものであっても、溶接変
形が小さくなると共に、溶接後の機械加工をなくして工
数の低減が図れ、高精度な溶接接合で管状容器が得られ
る製作方法を提供するにある。The present invention has been made in view of the above points, and the object thereof is that even when a flange is joined to a body tube of a container having a branch and a flange at each end between the branches, welding deformation is reduced. An object of the present invention is to provide a manufacturing method which can reduce the number of steps by eliminating machining after welding while reducing the number of steps, and can obtain a tubular container by high-precision welding.
本発明は胴管と分岐管とをアーク溶接で接合し、しか
る後、フランジが接合される前記胴管と分岐管の各端面
を機械切削、又はレーザ切断で加工し、この加工された
前記胴管、及び分岐管の各端面に、既に機械加工済みの
フランジをレーザ溶接により接合することにより、所期
の目的を達成するようになしたものである。According to the present invention, the body tube and the branch tube are joined by arc welding, and thereafter, each end face of the body tube and the branch tube to which the flange is joined is machined or laser cut, and the machined body is then cut. The intended purpose is achieved by joining a machined flange to each end face of the pipe and the branch pipe by laser welding.
本発明では胴管と分岐管とをアーク溶接で接合すると
熱変形はするが、これを機械加工して精度を出した後、
胴管と分岐管の各端部にフランジを熱変形の少ないレー
ザビーム溶接で接合することができるため、最終溶接後
の機械加工を行う必要がなく、工数がかからず精度の良
いものが得られる。特に、ガス絶縁開閉装置の様に、複
数の機器を組合わせて構成する場合のシースには、上述
の利点がより顕著である。In the present invention, when the body tube and the branch tube are joined by arc welding, thermal deformation occurs, but after machining this to obtain accuracy,
The flanges can be joined to each end of the body pipe and branch pipe by laser beam welding with little thermal deformation, so there is no need to perform machining after the final welding, resulting in less man-hours and higher precision. Can be In particular, the above-mentioned advantages are more remarkable for a sheath formed by combining a plurality of devices, such as a gas insulated switchgear.
以下、図示した実施例に基づいて本発明を詳細に説明
する。Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.
第７図は本発明の製作方法にて製作される管状容器が
採用されているガス絶縁開閉装置（GISと略す）で、こ
のGISは遮断器1,母線2,断路器3,避雷器４等から概略構
成されている。これらのユニットは、第８図に示す主回
路導電部７をタンク５、またはシース６と呼ばれる。溶
接構造の管状容器６の中に絶縁物８で支え、空間には絶
縁性の高いSF6ガスを封じた構造となっている。また、
各ユニットは、それぞれのタンク5,シース６の管端に溶
接接合されているフランジ9,10を介して連結されてい
る。通常、タンク5,シース６の中には４〜５気圧のSF6
ガスを封じているが、これらは据付時に封入するだけで
よいことになっている。したがって、タンク５、及びシ
ース６のフランジ9,10には、第３図に示すように、互い
の密着性が良く、Ｏリング11のシール性が有効に生かさ
れるような面の平坦度と、分岐管フランジ９の胴管フラ
ンジ10に対する直角度の精度が良いことが要求される。FIG. 7 shows a gas-insulated switchgear (abbreviated as GIS) employing a tubular container manufactured by the manufacturing method of the present invention. It is schematically configured. In these units, the main circuit conductive portion 7 shown in FIG. 8 is called a tank 5 or a sheath 6. It has a structure in which an insulating material 8 is supported in a tubular container 6 having a welded structure, and a highly insulating SF 6 gas is sealed in a space. Also,
The units are connected via flanges 9 and 10 that are welded to the respective ends of the tank 5 and the sheath 6. Normally, 4 to 5 atm SF 6 is contained in the tank 5 and the sheath 6.
The gas is sealed, but these need only be sealed during installation. Therefore, as shown in FIG. 3, the flanges 9 and 10 of the tank 5 and the sheath 6 have good adhesion to each other, and the flatness of the surface so that the sealing property of the O-ring 11 can be effectively utilized. It is required that the accuracy of the perpendicularity of the branch pipe flange 9 to the body pipe flange 10 be good.
第１図は、GIS用容器の製作フローを示したものであ
る。GIS用容器の部材は、胴管21,分岐管22,胴管フラン
ジ9,分岐管フランジ10の４つに大別される。各々の部材
はそれぞれ単独で準備され、次の工程で胴管21には分岐
管22の接続用の穴あけ、分岐管22には胴管21の穴に見合
った形状に加工する切断、胴管フランジ９、及び分岐管
フランジ10には接続用の穴あけ、及び面仕上とその用途
に応じた加工が施される。次に、胴管21と分岐管22とが
アーク溶接で接合され、次の工程でアーク溶接で接合さ
れた胴管21と分岐管22の管端をレーザ切断、あるいは機
械加工する。その後、上記穴あけ、面仕上げが施された
胴管フランジ９、及び分岐管フランジ10を、レーサ切
断、あるいは機械加工が施された胴管21、及び分岐管22
の管端にそれぞれレーザ溶接で接合し、管状容器を製作
するものである。FIG. 1 shows a flow of manufacturing a GIS container. The members of the GIS container are roughly divided into four parts: a trunk pipe 21, a branch pipe 22, a trunk pipe flange 9, and a branch pipe flange 10. Each member is prepared independently, and in the next step, a hole for connecting the branch pipe 22 is formed in the body pipe 21, and the branch pipe 22 is cut into a shape corresponding to the hole of the body pipe 21. 9 and branch pipe flange 10 are subjected to connection drilling, surface finishing and processing according to the application. Next, the body tube 21 and the branch tube 22 are joined by arc welding, and in the next step, the tube ends of the body tube 21 and the branch tube 22 joined by arc welding are laser cut or machined. Thereafter, the body pipe flange 9 and the branch pipe flange 10 that have been drilled and surface-finished are separated from the body pipe 21 and the branch pipe 22 that have been subjected to laser cutting or machining.
Are joined to each other by laser welding to produce a tubular container.
部材間の溶接構造としては、第４図（ａ），（ｂ），
（ｃ）に示すように、フランジ端面に管端を溶接するＴ
継手、フランジの管内径面に管端の外径を溶接する差込
み継手、管端同志を突合わせて溶接する突合わせ継手の
３つがあり、各々、図に示すように継手開先部を機械加
工することにより、継手精度がよくなり、レーザ溶接が
適用できるので溶接変形を抑えることができる。したが
って、フランジをシール面を含め先に機械加工したの
ち、レーザ溶接しても、密封容器としての機能は保つこ
とが出来る。As the welding structure between the members, FIGS.
As shown in (c), the pipe end is welded to the flange end face.
There are three types of joints: a plug-in joint that welds the outer diameter of the pipe end to the inner diameter surface of the flange, and a butt joint that butt-welds the pipe ends together. Each is machined as shown in the figure. By doing so, the joint accuracy is improved, and laser deformation can be applied, so that welding deformation can be suppressed. Therefore, even if the flange is first machined including the sealing surface and then laser-welded, the function as a sealed container can be maintained.
第２図は本発明による他の実施例を示すフローで、分
岐管の中で、内部点検用のマンホールのように、フラン
ジ面の向きや寸法が胴管１に対して、高精度を要さない
場合、マンホール要分岐管12とマンホール用フランジ部
材13を別にアーク溶接で接合し、マンホール用フランジ
13を機械加工した後、胴管１へアーク溶接し、その後は
第１図と同じ工程で製作する例を示したものである。FIG. 2 is a flow chart showing another embodiment of the present invention. In the branch pipe, the direction and dimensions of the flange surface are required to be high with respect to the body pipe 1 like a manhole for internal inspection. If not, the manhole branch pipe 12 and the manhole flange member 13 are separately joined by arc welding, and the manhole flange
13 shows an example in which after machining, an arc welding is carried out on the body tube 1 and thereafter, it is manufactured in the same process as in FIG.
第５図は、第１図の端面切断するための手段として、
分岐管付胴管を回転させ、レーザ発振器14からのレーザ
光を加工ヘッド15を介して照射し、切断した例である。FIG. 5 shows a means for cutting the end face of FIG.
This is an example in which a body tube with a branch tube is rotated, and a laser beam from a laser oscillator 14 is irradiated via a processing head 15 and cut.
第６図は、第１図の端面切断するための手段として、
レーザ加工ヘッド15を回転させてレーザ光を照射し管端
面を切断する例である。レーザ切断の利点は、管端面の
切断長さにかかわらず、１回転で、高精度の切断面が得
られることにある。FIG. 6 shows a means for cutting the end face of FIG.
This is an example in which a laser processing head 15 is rotated to irradiate a laser beam to cut a tube end face. The advantage of laser cutting is that a high-precision cut surface can be obtained in one rotation regardless of the cut length of the tube end face.
このような本実施例によれば、フランジは単品で機械
加工できるので、フランジだけの集約加工ができ、設備
も比較的小形の機械装置で加工でき、切削時間以外の段
取り時間の節約が可能となる。容器としての製作期間に
しても、管部材の製缶、溶接工程と、フランジの機械加
工工程が同時進行でき、40％程度の短縮が可能となる。
さらに、分岐管を胴管に溶接したあとの整形作業に関し
ても、胴管の曲がりや分岐管の傾斜は、管端面の機械加
工またはレーザー切断でカバーできるので、50〜70％程
度の短縮が可能になる。According to the present embodiment, since the flange can be machined as a single piece, the flange can be machined only, the equipment can be machined with a relatively small mechanical device, and setup time other than cutting time can be saved. Become. Even during the production period of the container, the process of canning and welding the pipe member and the process of machining the flange can be performed simultaneously, and a reduction of about 40% is possible.
In addition, regarding the shaping work after welding the branch pipe to the body pipe, the bending of the body pipe and the inclination of the branch pipe can be covered by machining or laser cutting of the pipe end face, so it can be reduced by about 50 to 70%. become.
また、管の端面をレーザー切断することで、レーザー
溶接とレーザー発振器を共用することにより、設備の集
約と、管の端面加工の高速化が図れる。In addition, by laser cutting the end face of the pipe, laser welding and a laser oscillator can be used in common, thereby consolidating equipment and speeding up the processing of the end face of the pipe.
以上説明した本発明の管状容器の製作方法によれば、
胴管と分岐管とをアーク溶接で接合し、しかる後、フラ
ンジが接合される前記胴管と分岐管の各端面を機械切
削、又はレーザ切断で加工し、この加工された前記胴
管、及び分岐管の各端面に、既に機械加工済みのフラン
ジをレーザ溶接により接合したものであるから、溶接後
の機械加工をなくすことができるので工数低減が図れ、
かつ、高精度な溶接で接合された管状容器を得ることが
できる。According to the method for manufacturing a tubular container of the present invention described above,
The body tube and the branch tube are joined by arc welding, and thereafter, each end face of the body tube and the branch tube to which the flange is joined is machine-cut or processed by laser cutting, and the machined body tube and Because each machined flange is joined to each end face of the branch pipe by laser welding, machining after welding can be eliminated, reducing man-hours.
And the tubular container joined by high-precision welding can be obtained.
第１図は本発明の管状容器の製作方法の一実施例とし
て、GIS用圧力容器の製作フローを示す図、第２図は他
の実施例を示すフロー図、第３図は容器同士のボルト接
続部の詳細断面図、第４図（ａ），（ｂ），（ｃ）は、
容器に使用される溶接継手形状の種類を示す断面図、第
５図及び第６図は、本発明の一実施例の中で、管状容器
の管端面の切断方法を示す図、第７図はガス絶縁開閉装
置の外観図、第８図は、第７図のＡ−Ａ断面図を示すも
のである。 １……遮断器、２……母線、３……断路器、４……避雷
器、５……タンク、６……シース、７……主回路導電
部、８……絶縁物、９……胴管用フランジ、10……分岐
管用フランジ、11……Ｏリング、12……マンホール用分
岐管、13……マンホール用フランジ、14……レーザ発振
器、15……レーザ加工ヘッド、21……胴管、２……分岐
管。FIG. 1 is a view showing a flow of manufacturing a pressure vessel for GIS as one embodiment of a method for manufacturing a tubular container of the present invention, FIG. 2 is a flowchart showing another embodiment, and FIG. FIGS. 4 (a), (b) and (c) are detailed sectional views of the connecting portion.
FIGS. 5 and 6 are cross-sectional views showing the types of welded joint shapes used for the container, and FIGS. 5 and 6 are views showing a method of cutting the end face of the tubular container in one embodiment of the present invention. FIG. 8 is an external view of the gas insulated switchgear, and FIG. 8 is a sectional view taken along line AA of FIG. DESCRIPTION OF SYMBOLS 1 ... Circuit breaker, 2 ... Bus, 3 ... Disconnector, 4 ... Lightning arrester, 5 ... Tank, 6 ... Sheath, 7 ... Main circuit conductive part, 8 ... Insulator, 9 ... Body Pipe flange, 10 ... Branch pipe flange, 11 ... O-ring, 12 ... Manhole branch pipe, 13 ... Manhole flange, 14 ... Laser oscillator, 15 ... Laser processing head, 21 ... Body pipe, 2 ... Branch pipe.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村下 雅紀 茨城県日立市国分町１丁目１番１号 株 式会社日立製作所国分工場内 (72)発明者 小林 豊 茨城県日立市国分町１丁目１番１号 株 式会社日立製作所国分工場内 (72)発明者 佐藤 孝志 茨城県日立市国分町１丁目１番１号 株 式会社日立製作所国分工場内 (72)発明者 一色 治 茨城県日立市国分町１丁目１番１号 株 式会社日立製作所国分工場内 (72)発明者 太田 勝郎 茨城県日立市国分町１丁目１番１号 株 式会社日立製作所国分工場内 (72)発明者 中野 清蔵 茨城県日立市国分町１丁目１番１号 株 式会社日立製作所国分工場内 (56)参考文献 特開 平４−123887（ＪＰ，Ａ) 特開 平４−127988（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B23K 26/00 - 26/18──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masaki Murashita 1-1-1, Kokubuncho, Hitachi City, Ibaraki Prefecture Inside the Hitachi, Ltd. Kokubu Plant (72) Inventor Yutaka Kobayashi 1-Kokubuncho, Hitachi City, Ibaraki No. 1-1 Inside Hitachi Kokubu Plant Hitachi, Ltd. (72) Inventor Takashi Sato 1-1-1, Kokubun-cho, Hitachi City, Hitachi, Ibaraki Prefecture Inside Kokubu Plant Hitachi, Ltd. (72) Inventor Osamu Isshiki Hitachi, Hitachi City, Ibaraki 1-1-1, Kokubucho, Kokubu Plant, Hitachi, Ltd. (72) Inventor Katsuro Ota 1-1-1, Kokubuncho, Hitachi, Hitachi, Ibaraki Prefecture, Kokubu Plant, Hitachi, Ltd. (72) Kiyoshizo Nakano, Inventor 1-1-1 Kokubuncho, Hitachi City, Ibaraki Prefecture Inside the Kokubu Plant of Hitachi, Ltd. (56) References JP-A-4-123887 (JP, A) JP-A-4-127988 (JP A) (58) investigated the field (Int.Cl. 6, DB name) B23K 26/00 - 26/18
Claims (4)
その後、前記胴管と分岐管の各々の端部にフランジを接
合して管状容器を形成する製作方法において、前記胴管
と分岐管とをアーク溶接で接合し、しかる後、前記フラ
ンジが接合される前記胴管と分岐管の各端面を機械切
削、又はレーザ切断で加工し、この加工された前記胴
管、及び分岐管の各端面に、既に機械加工済みのフラン
ジをレーザ溶接により接合することを特徴とする管状容
器の組立方法。1. A branch pipe is joined to at least one trunk pipe,
Thereafter, in a manufacturing method of joining a flange to each end of the trunk pipe and the branch pipe to form a tubular container, the trunk pipe and the branch pipe are joined by arc welding, and then the flange is joined. Machining each end face of the body pipe and the branch pipe by machine cutting or laser cutting, and joining the machined flanges to the machined end faces of the body pipe and the branch pipe by laser welding. A method for assembling a tubular container.
ジをアーク溶接で接合し、その後、前記マンホール用フ
ランジを機械加工し、この状態で前記マンホール用分岐
管を前記胴管にアーク溶接で接合し、しかる後に請求項
１記載の製作工程を行うことを特徴とする管状容器の製
作方法。2. A manhole branch pipe and a manhole flange are joined by arc welding, and thereafter the manhole flange is machined. In this state, the manhole branch pipe is joined to the trunk pipe by arc welding. 2. A method for manufacturing a tubular container, wherein the manufacturing step according to claim 1 is performed thereafter.
を回転させながらレーザ光を照射して切断することによ
り行うことを特徴とする請求項１、又は２記載の管状容
器の製作方法。3. The tubular container according to claim 1, wherein the end face of the branch pipe is cut by irradiating a laser beam while rotating the body pipe with the branch pipe. Production method.
ザ光を照射するレーザ加工ヘッドを回転させながら行う
ことを特徴とする請求項１、又は２記載の管状容器の製
作方法。4. The method according to claim 1, wherein the processing of the end face of the branch pipe is performed while rotating a laser processing head for irradiating the end face with laser light.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2329013A JP2852121B2 (en) | 1990-11-30 | 1990-11-30 | Manufacturing method of tubular container |
| EP91115361A EP0476501B1 (en) | 1990-09-17 | 1991-09-10 | Metal container having trunk pipe and branch pipe and its manufacturing method. |
| DE69123673T DE69123673T2 (en) | 1990-09-17 | 1991-09-10 | Metal container with stem and branch pipe and its manufacturing process. |
| EP95108753A EP0672496A3 (en) | 1990-09-17 | 1991-09-10 | Laser machining system. |
| CN91109579A CN1060929A (en) | 1990-09-17 | 1991-09-17 | Its manufacture method of structure and equipment with canister of the person in charge and arm |
| KR1019910016173A KR920006069A (en) | 1990-09-17 | 1991-09-17 | Structure of metal container with trunk pipe and branch pipe, manufacturing method and device |
| US07/760,890 US5444206A (en) | 1990-09-17 | 1991-09-17 | Structure of metal container having trunk pipe and branch pipe, and manufacturing method and apparatus therefor |
| US08/282,306 US5498849A (en) | 1990-09-17 | 1994-07-29 | Structure of metal container having trunk pipe and branch pipe, and manufacturing method and apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2329013A JP2852121B2 (en) | 1990-11-30 | 1990-11-30 | Manufacturing method of tubular container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04200887A JPH04200887A (en) | 1992-07-21 |
| JP2852121B2 true JP2852121B2 (en) | 1999-01-27 |
Family
ID=18216626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2329013A Expired - Fee Related JP2852121B2 (en) | 1990-09-17 | 1990-11-30 | Manufacturing method of tubular container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2852121B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5645740A (en) * | 1993-11-01 | 1997-07-08 | Naiman; Charles S. | System and assemblage for producing microtexturized substrates and implants |
| KR100525066B1 (en) * | 2005-01-27 | 2005-10-31 | 삼익정공(주) | A manufacturing method of flange type linear bushing using laser and flange type linear bushing manufactured by the above method |
| JP5232423B2 (en) * | 2007-08-28 | 2013-07-10 | ジヤトコ株式会社 | Welding method and welding jig |
| JP5041030B2 (en) * | 2010-04-30 | 2012-10-03 | 旭硝子株式会社 | Work holder for glass substrate laminate, method for producing glass substrate using this work holder, glass substrate produced by this production method, method for producing glass substrate for magnetic recording medium using this work holder, and magnetic recording medium Glass substrate |
| WO2012003268A2 (en) * | 2010-07-02 | 2012-01-05 | Kurt J. Lesker Company | Methods for manufacturing a vacuum chamber and components thereof, and improved vacuum chambers and components thereof |
| JP6320855B2 (en) | 2014-06-18 | 2018-05-09 | Ntn株式会社 | Method for manufacturing outer joint member of constant velocity universal joint and outer joint member |
-
1990
- 1990-11-30 JP JP2329013A patent/JP2852121B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04200887A (en) | 1992-07-21 |
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