JPH02290678A - Welding equipment - Google Patents
Welding equipmentInfo
- Publication number
- JPH02290678A JPH02290678A JP10996889A JP10996889A JPH02290678A JP H02290678 A JPH02290678 A JP H02290678A JP 10996889 A JP10996889 A JP 10996889A JP 10996889 A JP10996889 A JP 10996889A JP H02290678 A JPH02290678 A JP H02290678A
- Authority
- JP
- Japan
- Prior art keywords
- compressed air
- welding
- rear side
- base metal
- supply groove
- 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
Links
- 238000003466 welding Methods 0.000 title claims description 43
- 239000010953 base metal Substances 0.000 claims abstract description 20
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 16
- 239000010937 tungsten Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 31
- 239000011261 inert gas Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 7
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 229910052725 zinc Inorganic materials 0.000 abstract description 6
- 239000011701 zinc Substances 0.000 abstract description 6
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、表面が例えば亜鉛やニッケル亜鉛等で被覆さ
れた表面処理鋼板を溶接する場合に使用される溶接装置
の改良に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in a welding device used when welding a surface-treated steel plate whose surface is coated with, for example, zinc or nickel-zinc.
（従来の技術）
例えば、ファイバードラム（紙製ドラム缶）に使用され
るリング部材（補強リング）は、表面処理鋼板でなる帯
状の素材をリング状に曲げてその両端部を溶接すること
によって製作される。(Prior art) For example, a ring member (reinforcing ring) used in a fiber drum (paper drum) is manufactured by bending a strip-shaped material made of surface-treated steel plate into a ring shape and welding both ends of the material. Ru.
このような場合に使用される溶接法としては、従来、溶
接しようとする当該素材の端面を互いに突き合わせた状
態でその突き．合わせた部分に火花を発生させるフラッ
シュバット（火花突き合わせ）溶接が一般的であるが、
これ以外にもスポット溶接やシーム溶接によっても行う
ことが可能である。Conventionally, the welding method used in such cases has been to butt the end surfaces of the materials to be welded against each other. Flash butt welding, which generates sparks at the joined parts, is common.
In addition to this, spot welding or seam welding can also be used.
一方、．近年多く利用されている溶接法の一つに、非消
耗性電極であるタングステン電極を使用してアルゴンガ
ス等の不活性ガス中でアーク溶接を行うタングステンイ
ナートガスアーク溶接（ＴＩＧ溶接）がある。この方法
に使用される自動式ティグ溶接装置は、主として、不活
性ガスを噴出させるガスノズルの中心軸方向にタングス
テン電極をセットしてなるトーチと、母材（被加工材）
を扶持するバックバーやクランブ部材等の保持手段など
から構成される。on the other hand,. One of the welding methods that has been widely used in recent years is tungsten inert gas arc welding (TIG welding) in which arc welding is performed in an inert gas such as argon gas using a tungsten electrode that is a non-consumable electrode. The automatic TIG welding equipment used in this method mainly consists of a torch, which has a tungsten electrode set in the direction of the central axis of a gas nozzle that spouts inert gas, and a base material (workpiece material).
It consists of holding means such as a back bar and a clamp member that support the
（発明が解決しようとする課題）
然るに、上記フラッシュバット法の場合は、溶接部に突
起が発生するため外観が損なわれ易く、しかも後工程と
して行われる例えばロール加工の際にロールを傷めると
いう問題がある。(Problems to be Solved by the Invention) However, in the case of the above-mentioned flash butt method, the appearance is likely to be impaired due to the formation of protrusions in the welded part, and there is also the problem that the rolls may be damaged during post-processing, for example, during roll processing. There is.
また、シーム溶接或いはスポット溶接においても、母材
の端部を所定量だけ重ね合わせた状態で溶接を行うため
、上記の場合と同様の問題がある。Furthermore, in seam welding or spot welding, welding is performed with the ends of the base metals overlapped by a predetermined amount, so there are problems similar to those described above.
更に、これらの方法においては、溶接時に火花が周辺に
飛び散って危険であるという欠点もある。Furthermore, these methods also have the disadvantage that sparks fly around during welding, which is dangerous.
一方、ＴＩＧ溶接によると上記のような問題はないが、
その反面、特に表面処理鋼板でなる母材を溶接しようと
した場合に、アーク熱によって溶接部分における表側（
アークに直接曝される側）のみならず裏側（完成品では
、この裏側を表側として使用する）の例えば亜鉛層が融
けて地金である鉄が露出するため、その部分に錆が発生
しやすいという問題がある。On the other hand, TIG welding does not have the above problems,
On the other hand, when attempting to weld a base material made of a surface-treated steel plate, the front side of the welded part (
For example, the zinc layer on the back side (the side directly exposed to the arc) as well as the back side (in finished products, this back side is used as the front side) melts and exposes the bare iron, making it easy for rust to occur in that area. There is a problem.
本発明は、従来における上記のような実情に鑑みて成さ
れたもので、ＴＩＧ溶接装置の一部を改良することによ
り、表面が亜鉛等の金属によって被覆された表面処理鋼
板でなる母材を溶接する装置として、溶接部の裏側の面
に酸化被膜を形成し得る溶接装置を提供し、ひいては溶
接部に錆が発生しにくい製品が得られるようにすること
を目的とする。The present invention was made in view of the above-mentioned conventional circumstances, and by improving a part of TIG welding equipment, it is possible to weld a base material made of a surface-treated steel plate whose surface is coated with a metal such as zinc. To provide a welding device capable of forming an oxide film on the back side of a welded part, and to obtain a product in which rust is less likely to occur in the welded part.
（課題を解決するための手段）
上記目的達成のため、本発明は、母材を所定の状態に保
持する保持手段と、アークを発生させるタングステン電
極がセットされて該電極の回りから不活性ガスを噴出さ
せるトーチとを有し、上記不活性ガスの雰囲気中でアー
ク又はプラズマの熱により母材を溶接する溶接装置にお
いて、上記保持手段又はその近傍に、母材の溶接部の裏
側に臨むように空気供給溝を設けると共に、別途備えら
れる圧縮空気源に一端が接続されて上記空気供給溝内に
圧縮空気を導入する圧縮空気導入通路を形成したことを
特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a holding means for holding a base material in a predetermined state, a tungsten electrode for generating an arc, and an inert gas from around the electrode. In the welding device for welding base metals by the heat of arc or plasma in the above-mentioned inert gas atmosphere, the above-mentioned holding means or its vicinity is provided so as to face the back side of the welded part of the base metal. The present invention is characterized in that an air supply groove is provided in the air supply groove, and a compressed air introduction passage is formed at one end of which is connected to a separately provided compressed air source to introduce compressed air into the air supply groove.
（作 用）
上記の構成によれば、保持手段に母材が保持された状態
で、不活性ガスの雰囲気中でタングステン電極と母材の
溶接部の表側（タングステン電極と対向している側）と
の間に生じるアーク又はプラズマの熱によって該溶接部
が溶接される。(Function) According to the above configuration, the front side of the welded part between the tungsten electrode and the base metal (the side facing the tungsten electrode) in an inert gas atmosphere with the base metal held by the holding means. The welded portion is welded by the heat of the arc or plasma generated between the two.
その場合、上記保持手段又はその近傍に母材溶接部の裏
側に臨む空気供給溝が設けられ、該空気供給溝が圧縮空
気導入通路を介して圧縮空気源に接続されているから、
その圧縮空気源から空気供給溝内に導入された圧縮空気
が母材の溶接部の裏側に吹きつけられる。その結果、該
溶接部の裏側に酸化被膜が形成されることにより、母材
の溶接部の裏側部分の錆の発生が効果的に防止されるこ
とになる。In that case, an air supply groove facing the back side of the base metal weld is provided at or near the holding means, and the air supply groove is connected to a compressed air source via a compressed air introduction passage.
Compressed air introduced into the air supply groove from the compressed air source is blown against the back side of the welded portion of the base metal. As a result, an oxide film is formed on the back side of the welded portion, thereby effectively preventing rust from forming on the back side of the welded portion of the base metal.
（実 施 例） 以下、本発明の実施例を説明する。(Example) Examples of the present invention will be described below.
第１図に示すように、この実施例に係る溶接装置ｌは、
前面中央部が開口部２ａとされたフレーム２内に母材保
持手段３、トーチ４及びトーチ送り機構５等を備えた構
成で、上記開口部２ａから母材保持手段３等の一部が見
えるようになっている。As shown in FIG. 1, the welding device l according to this embodiment is
The structure includes a base material holding means 3, a torch 4, a torch feeding mechanism 5, etc. in a frame 2 with an opening 2a at the center of the front surface, and a part of the base material holding means 3 etc. can be seen from the opening 2a. It looks like this.
上記母材保持千段３は、第２図に拡大して示すように、
この実施例においては各々左右一対の上部保持部材６、
６と下部保持部材７、７とを有する。このうち左右の上
部保持部材６、６は、第３図に示すように、母材Ａの溶
接部Ａ１に沿ってその両側を押さえるべく互いに所定間
隔だけ離して配置されており、また左右一対の下部保持
部材７、７は必要に応じて互いに離接可能とされている
。As shown in an enlarged view in FIG. 2, the base material holding stage 3 is as follows:
In this embodiment, a pair of left and right upper holding members 6,
6 and lower holding members 7, 7. As shown in FIG. 3, the left and right upper holding members 6, 6 are arranged at a predetermined distance from each other in order to hold both sides of the welded part A1 of the base material A. The lower holding members 7, 7 can be moved toward and away from each other as necessary.
そして、下部保持部材７、７上に母材Ａをセットした状
態で、その上から上部保持部材６、６で該母材Ａの溶接
部Ａ１の両側を押さえることにより各両保持部材６及び
７間に母材Ａを保持し得るようになっている。Then, with the base material A set on the lower holding members 7, 7, both the holding members 6 and 7 are pressed by pressing both sides of the welded part A1 of the base material A with the upper holding members 6, 6 from above. The base material A can be held between them.
一方、上記トーチ４は、筒状のガスノズル８内にアーク
発生用のタングステン電極９を設けてその先端部を上記
ノズル８の先端部から突出させた構成である。そして、
タングステン電極９と母材Ａ側との間に所定の電圧が印
加された時に、タングステン電極９の回りから不活性ガ
ス（この実施例においてはアルゴンガス）を噴出させて
母材Ａの溶接部Ａ，をガスシールドしながらタングステ
ン電極９と母材Ａの溶接部Ａ，との間に生じたアーク又
はプラズマの熱により溶接部Ａ１を溶接するようになっ
ている。ここで、タングステン電極９及び下部保持部材
７、７は、図示しない溶接電源に夫々接続されている。On the other hand, the torch 4 has a structure in which a tungsten electrode 9 for arc generation is provided in a cylindrical gas nozzle 8, and its tip protrudes from the tip of the nozzle 8. and,
When a predetermined voltage is applied between the tungsten electrode 9 and the base material A side, an inert gas (argon gas in this embodiment) is ejected from around the tungsten electrode 9 to a welded area A of the base material A. , while the welding area A1 is welded by the heat of the arc or plasma generated between the tungsten electrode 9 and the welding area A of the base material A. Here, the tungsten electrode 9 and the lower holding members 7, 7 are each connected to a welding power source (not shown).
更に、上記溶接装置１においては、本発明の特徴部分と
して、母材Ａの溶接部Ａ，の裏側（図面では下面側）に
臨むように空気供給溝１０が形成されていると共に、該
空気供給溝１０に圧縮空気を導入する圧縮空気導入通路
１ｌが設けられている。Furthermore, in the welding apparatus 1, an air supply groove 10 is formed so as to face the back side (lower side in the drawing) of the welded part A of the base material A, and the air supply groove 10 is A compressed air introduction passage 1l for introducing compressed air into the groove 10 is provided.
このうち空気供給溝１０は、この実施例においては、上
記一対の下部保持部材７、７が左右に所定間隔だけ離反
した状態で、その両者間に下方から上昇された板状の部
材１２が両下部保持部材７、７の上面よりも下方位置と
なる第３図に図示の状態で停止することによって形成さ
れている。In this embodiment, the air supply groove 10 is formed by a plate-shaped member 12 lifted from below between the pair of lower holding members 7 and 7 separated from each other by a predetermined distance in the left and right directions. It is formed by stopping in the state shown in FIG. 3, which is a position below the upper surface of the lower holding members 7, 7.
また、圧縮空気導入通路１１は、一方の下部保持部材７
内に設けられており、一端が複数の分岐通路１１ａ・・
・ｌｌａを介して上記空気供給溝１０に連通されている
と共に、他端が別途備えられた圧縮空気源（図示せず）
に接続されている。Further, the compressed air introduction passage 11 is connected to one lower holding member 7.
It is provided in the interior, and one end has a plurality of branch passages 11a...
- A compressed air source (not shown) that is connected to the air supply groove 10 through the lla and has a separate end.
It is connected to the.
そして、母材Ａの溶接部Ａ．を溶接している際には、圧
縮空気源から供給される圧縮空気が上記圧縮空気導入通
路１１及び複数の分岐通路１１ａ・・・ｌｌａを介して
空気供給溝１０内に供給されることにより、該溶接部Ａ
１の裏側に圧縮空気が吹き付けられるようになっている
。Then, the welded part A. of the base material A. When welding, compressed air supplied from the compressed air source is supplied into the air supply groove 10 via the compressed air introduction passage 11 and the plurality of branch passages 11a...lla, The welded part A
Compressed air is blown onto the back side of 1.
次に、この実施例の作用を説明する。Next, the operation of this embodiment will be explained.
先ず、表面処理鋼板でなる母材Ａの端部同士を第３図に
示すように突き合した状態で上部保持部材６、６と下部
保持部材７、７との間に該母材Ａを保持させる。この時
、左右一対の下部保持部材７、７を互いに所定間隔だけ
離反させ且つその間に板状部材１２を第３図に示す状態
に位置させておくことにより、上記母材Ａの合わせ部（
溶接部Ａ１）の裏側に臨む空気供給溝１０を形成してお
そして、このようにして母材Ａを所定状態にセットした
後、トーチ４つまりタングステン電極９と下部保持部材
７、７または母材Ａとの間に所定の電圧を印加すると、
第４図に示すようにタングステン電極９と母材Ａの溶接
部Ａｔの表側（トーチ４に面している側）との間にアー
ク（又はプラズマ）が生じると共に、トーチ４を構成し
ているガスノズル８の先端からは不活性ガス（アルゴン
ガス）が噴出されて溶接部Ａ１をガスシールドする。そ
の結果、該溶接部Ａ１が不活性ガスの雰囲気の中で上記
アーク又はプラズマの熱によって溶接される。First, the base material A made of a surface-treated steel plate is held between the upper holding members 6, 6 and the lower holding members 7, 7 with the ends of the base material A butted together as shown in FIG. let At this time, the mating portion of the base material A (
After forming the air supply groove 10 facing the back side of the welding part A1) and setting the base material A in a predetermined state in this way, the torch 4, that is, the tungsten electrode 9, the lower holding members 7, 7, or the base material When a predetermined voltage is applied between A and A,
As shown in FIG. 4, an arc (or plasma) is generated between the tungsten electrode 9 and the front side (the side facing the torch 4) of the welded part At of the base metal A, and the torch 4 is formed. Inert gas (argon gas) is ejected from the tip of the gas nozzle 8 to gas-shield the welding area A1. As a result, the welded portion A1 is welded by the heat of the arc or plasma in an inert gas atmosphere.
その場合、母材溶接部Ａ＋の裏側の表面を形成している
亜鉛層Ｂが或る程度アーク熱ないしプラズマ熱によって
溶融し、その地金金属である鉄Ｃの一部が表面に露出す
る。In that case, the zinc layer B forming the back surface of the base metal welded part A+ is melted to some extent by arc heat or plasma heat, and a part of the base metal iron C is exposed on the surface.
しかし、上記の構成によれば、母材Ａの溶接部Ａ１の裏
側に臨む空気供給溝１０が圧縮空気導入通路１１及び分
岐通路１１ａ・・・ｌｌａを介して図示しない圧縮空気
源に接続されており、溶接時には該溝１０に圧縮空気源
から圧縮空気が導入されて、第４図に白抜き矢印で示す
ように溶接部Ａｔの裏側に吹き付けられる。その結果、
溶接部Ａ１の裏側表面に露出した地金の鉄部分が圧縮空
気によって酸化され、その部分（第４図において符号イ
で示す部分）に酸化被膜が形成されることになる。これ
により、母材Ａの溶接部ＡＩの裏側の面（製品となった
後においては表側となる面）に酸化被膜が形成されて良
好な溶接状態となり、当該部分の錆の発生が効果的に防
止されることになる。However, according to the above configuration, the air supply groove 10 facing the back side of the welded part A1 of the base material A is connected to a compressed air source (not shown) via the compressed air introduction passage 11 and the branch passages 11a...lla. During welding, compressed air is introduced into the groove 10 from a compressed air source and is blown onto the back side of the welding part At as shown by the white arrow in FIG. the result,
The iron portion of the base metal exposed on the back surface of the welded portion A1 is oxidized by the compressed air, and an oxide film is formed on that portion (the portion indicated by the symbol A in FIG. 4). As a result, an oxide film is formed on the back side of the welded part AI of the base material A (the surface that will become the front side after it is made into a product), resulting in a good welding condition and effectively preventing rust from forming in that part. This will be prevented.
尚、この実施例においては、下部保持部材７、７及びそ
の下方に備えられた昇降可能な板状部材１２によって空
気供給溝１０を形成する構成としたが、空気供給溝の構
成はこのようなものに限られない。例えば、母材Ａの溶
接部Ａ１の裏側に位置する下部保持部材７、７の一方又
は双方の所定部分を切り欠くことによって上記のような
空気供給溝を形成するようにしてもよい。In this embodiment, the air supply groove 10 is formed by the lower holding members 7, 7 and the plate-like member 12 that can be raised and lowered below the lower holding members 7. It's not limited to things. For example, the air supply groove as described above may be formed by cutting out a predetermined portion of one or both of the lower holding members 7, 7 located on the back side of the welded portion A1 of the base material A.
（発明の効果）
以上のように、本発明の溶接装置によれば、表面が亜鉛
等の金属によって被覆された表面処理鋼板でなる母材を
溶接する場合において、アーク又はプラズマに曝される
溶接部の裏側に酸化被膜が形成されるので、該溶接部裏
側が錆び難くく、しかも美しい状態に仕上がることにな
る。(Effects of the Invention) As described above, according to the welding apparatus of the present invention, when welding a base material made of a surface-treated steel plate whose surface is coated with a metal such as zinc, welding that is exposed to arc or plasma Since an oxide film is formed on the back side of the welded part, the back side of the welded part is less likely to rust and is finished in a beautiful state.
図面は本発明の実施例を示すもので、第１図は該実施例
に係る溶接装置の全体正面図、第２図はその内部構造の
一部を拡大して示す要部拡大図、第３図は上記溶接装置
の使用状態を示す要部斜視図、第４図は母材を溶接して
いる状態を示す溶接部周辺の概略図である。
■・・・溶接装置、３・・・保持手段（６・・・上部保
持部材、７・・・下部保持部材）、４・・・トーチ、９
・・・タングステン電極、１０・・・空気供給溝、１１
・・・圧縮空気導入通路、Ａ・・・母材（表面処理鋼板
）、溶接部・・・Ａ第
因The drawings show an embodiment of the present invention, and FIG. 1 is an overall front view of a welding device according to the embodiment, FIG. 2 is an enlarged view of a main part showing a part of its internal structure, and FIG. The figure is a perspective view of a main part showing the state in which the welding apparatus is used, and FIG. 4 is a schematic view of the vicinity of a welding part showing a state in which base metals are welded. ■... Welding device, 3... Holding means (6... Upper holding member, 7... Lower holding member), 4... Torch, 9
...Tungsten electrode, 10...Air supply groove, 11
... Compressed air introduction passage, A ... Base material (surface-treated steel plate), welded part ... A factor
Claims (1)
を発生させるタングステン電極がセットされて該電極の
回りから不活性ガスを噴出させるトーチとを有し、上記
不活性ガスの雰囲気中でアーク又はプラズマの熱により
母材を溶接する溶接装置において、上記保持手段又はそ
の近傍に、母材の溶接部の裏側に臨む空気供給溝を設け
ると共に、別途備えられる圧縮空気源に一端が接続され
て上記空気供給溝内に圧縮空気を導入する圧縮空気導入
通路を形成したことを特徴とする溶接装置。(1) It has a holding means that holds the base material in a predetermined state, and a torch that is set with a tungsten electrode that generates an arc and blows out an inert gas from around the electrode, and is placed in an atmosphere of the inert gas. In a welding device that welds base metals using arc or plasma heat, an air supply groove facing the back side of the welding part of the base metal is provided at or near the holding means, and one end is connected to a separately provided compressed air source. A welding device characterized in that a compressed air introduction passage is formed for introducing compressed air into the air supply groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1109968A JPH0659551B2 (en) | 1989-04-28 | 1989-04-28 | Welding device for reinforcing ring of fiber drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1109968A JPH0659551B2 (en) | 1989-04-28 | 1989-04-28 | Welding device for reinforcing ring of fiber drum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02290678A true JPH02290678A (en) | 1990-11-30 |
| JPH0659551B2 JPH0659551B2 (en) | 1994-08-10 |
Family
ID=14523724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1109968A Expired - Lifetime JPH0659551B2 (en) | 1989-04-28 | 1989-04-28 | Welding device for reinforcing ring of fiber drum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659551B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012055958A (en) * | 2010-09-13 | 2012-03-22 | Kurashiki Laser Kk | Welding jig |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939071U (en) * | 1982-08-31 | 1984-03-12 | 三菱マテリアル株式会社 | Backing metal for plasma welding back shield |
| JPS59140094U (en) * | 1983-03-09 | 1984-09-19 | 神鋼電機株式会社 | welding jig |
-
1989
- 1989-04-28 JP JP1109968A patent/JPH0659551B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5939071U (en) * | 1982-08-31 | 1984-03-12 | 三菱マテリアル株式会社 | Backing metal for plasma welding back shield |
| JPS59140094U (en) * | 1983-03-09 | 1984-09-19 | 神鋼電機株式会社 | welding jig |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012055958A (en) * | 2010-09-13 | 2012-03-22 | Kurashiki Laser Kk | Welding jig |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0659551B2 (en) | 1994-08-10 |
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