JPH08187579A - Method of electrogas arc welding and its device - Google Patents
Method of electrogas arc welding and its deviceInfo
- Publication number
- JPH08187579A JPH08187579A JP27052895A JP27052895A JPH08187579A JP H08187579 A JPH08187579 A JP H08187579A JP 27052895 A JP27052895 A JP 27052895A JP 27052895 A JP27052895 A JP 27052895A JP H08187579 A JPH08187579 A JP H08187579A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- surface side
- groove
- oscillating
- electrogas
- 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.)
- Withdrawn
Links
Landscapes
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はエレクトロガス溶接
方法及びその装置に関する。TECHNICAL FIELD The present invention relates to an electrogas welding method and apparatus.
【０００２】[0002]
【従来の技術】従来、造船工事における船側外板や円筒
タンク等の厚肉構造材の立向き突合わせ継手を高能率溶
接するために用いられているエレクトロガス溶接方法に
おいては、図７模式図及び図８開先断面図に示すよう
に、厚肉の被溶接材１の表面側と裏面側で開先巾が異な
る台形状断面の立向き突合わせ継手開先２の裏面側に裏
当材３を、表面側に水冷式摺動当金４をそれぞれ当てが
い、先端からフラックス入りの溶接ワイヤ５を送り出す
トーチ６を摺動当金４の上から立向き突合わせ継手開先
２内に挿入して、溶接ワイヤ５に電力を供給してアーク
７を発生させるとともに、摺動当金４のシールドガス導
入管８から炭酸ガス又は炭酸ガス＋アルゴンガスのシー
ルドガスを噴出し、アーク７をシールドし、更にはシー
ルドガスと溶融スラグ９とで溶融金属１０をシールドし
て溶接を行う。このときトーチ６を板厚に沿うオシレー
ト方向Ｓにオシレートしながら溶接進行とともに上昇さ
せ、健全な溶接金属１１を形成して行く。2. Description of the Related Art Conventionally, in the electrogas welding method used for highly efficient welding of vertical butt joints of thick-walled structural materials such as ship side skins and cylindrical tanks in shipbuilding work, FIG. As shown in FIG. 8 groove sectional view, a backing material is provided on the back surface side of the vertical butt joint groove 2 having a trapezoidal cross section in which the groove width is different between the front surface side and the back surface side of the thick welded material 1. 3 is placed on the surface side with a water-cooled sliding pad 4, and a torch 6 for feeding the flux-containing welding wire 5 from the tip is inserted into the vertical butt joint groove 2 from above the sliding pad 4. Then, electric power is supplied to the welding wire 5 to generate an arc 7, and a shield gas of carbon dioxide gas or carbon dioxide gas + argon gas is jetted from the shield gas introduction pipe 8 of the sliding metal 4 to shield the arc 7. In addition, the shield gas and molten slurry Performing welding molten metal 10 and shield 9. At this time, the torch 6 is raised along with the progress of welding while oscillating in the oscillating direction S along the plate thickness to form a sound weld metal 11.
【０００３】しかしてこのような厚肉の被溶接材１を１
個のトーチ６をオシレート方向Ｓにオシレートさせてエ
レクトロガス溶接するにあたっては、表面側の溶接金属
量を確保するためには必然的に溶接ワイヤ５の供給量を
多くすることすなわち溶接電流の増加，停止時間の保持
等が必要となり、アーク７の熱源範囲１２は図８（Ｂ）
のように表面側開先巾一杯になる。しかしながら図８
（Ａ）のように、オシレートにより裏面側へアーク点が
移行した場合、溶接電流，電圧は一定であるため開先巾
に対して入熱量のコントロールができず、被溶接材１に
余分な熱負荷を与えることになり熱影響範囲が広がり、
脆化し易くなるという不具合がある。However, the thick material 1 to be welded is
In electrogas welding by oscillating the individual torches 6 in the oscillating direction S, in order to secure the amount of welding metal on the surface side, it is inevitable to increase the supply amount of the welding wire 5, that is, increase the welding current, The heat source range 12 of the arc 7 is shown in FIG.
The groove width on the front side becomes full as shown in. However, FIG.
As shown in (A), when the arc point shifts to the back side by oscillating, the welding current and voltage are constant, so the heat input cannot be controlled with respect to the groove width, and excess heat is applied to the welded material 1. It will give a load and the heat affected range will expand,
There is a problem that it becomes brittle.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、このような
事情に鑑みて提案されたもので、厚肉立向き突合わせ継
手に対して、被溶接材の材質を劣化させることなく高品
質かつ高能率な溶接が達成できるエレクトロガス溶接方
法及びその装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and is of high quality and high quality for a thick-walled vertical butt joint without degrading the material of the material to be welded. An object of the present invention is to provide an electrogas welding method and an apparatus therefor capable of achieving highly efficient welding.
【０００５】[0005]
【課題を解決するための手段】そのために第１番目の本
発明は、厚肉立向き突合わせ継手の表面側が裏面側より
広巾の開先にエレクトロガス溶接を施すにあたり、上記
開先内に板厚方向に並べて２本の溶接ワイヤを送給し、
両溶接ワイヤによるアークの熱源範囲を表面側を裏面側
より大きくするとともに両溶接ワイヤを板厚方向にオシ
レートさせて溶接することを特徴とする。Therefore, in the first aspect of the present invention, when the electrogas welding is applied to a groove in which the front surface side of the thick-walled vertical butt joint is wider than the rear surface side, a plate is formed in the groove. Line up in the thickness direction and feed two welding wires,
It is characterized in that the heat source range of the arc by both welding wires is made larger on the front surface side than on the back surface side and both welding wires are oscillated in the plate thickness direction for welding.
【０００６】また第２番目の本発明は、厚肉立向き突合
わせ継手の表面側が裏面側より広巾の開先にエレクトロ
ガス溶接を施すにあたり、上記開先内に１本の溶接ワイ
ヤを送給し、同溶接ワイヤを開先の板厚方向へオシレー
トさせるとともにオシレートに応じて溶接電流を変化さ
せて、同溶接ワイヤによるアークの熱源範囲を表面側を
裏面側より大きくして溶接することを特徴とする。According to the second aspect of the present invention, when performing electrogas welding on a groove in which the front surface side of the thick-walled vertical butt joint is wider than the rear surface side, one welding wire is fed into the groove. The welding wire is oscillated in the thickness direction of the groove, and the welding current is changed according to the oscillating to make the heat source range of the arc by the welding wire larger on the front side than on the back side for welding. And
【０００７】[0007]
【発明の実施の形態】まず第１番目の本発明の実施形態
を図１，図２について説明すると、図１は本溶接方法の
模式図、図２は同上における開先断面図である。図１，
図２において、厚肉の被溶接材１の表面側と裏面側で開
先巾が異なる台形状断面の立向き突合わせ継手開先２の
裏面側に裏当材３を、表面側に水冷式摺動当金４をそれ
ぞれ当てがい、この開先２内に、先端からフラックス入
りの溶接ワイヤ５ａを送り出すトーチ６ａと、先端から
同径又は若干大径の溶接ワイヤ５ｂを送り出すトーチ６
ｂとを、絶縁性連結板１３で連結して板厚方向に並べて
挿入する。そして裏面側溶接ワイヤ５ａ，表面側溶接ワ
イヤ５ｂに電力を供給し、このとき溶接電流は約５０Ａ
程度後者を高く、溶接電圧は約５Ｖ程度後者を高くし
て、それぞれアーク７ａ，７ｂを発生させ、それぞれの
アーク７ａ，７ｂの熱源範囲１２ａ，１２ｂを図２
（Ａ），（Ｂ）に示すように後者を大きくする。これら
アーク７ａ，７ｂを発生させるとともに、摺動当金４の
シールドガス導入管８から炭酸ガス又は炭酸ガス＋アル
ゴンガスのシールドガスを噴出し、アーク７ａ，７ｂを
シールドし、更にはシールドガスと溶融スラグ９とで溶
融金属１０をシールドして溶接を行う。このときトーチ
６ａ，６ｂを板厚に沿うオシレート方向Ｓにオシレート
させかつそれにより溶融金属１０をかくはんしながら溶
接進行とともに上昇させ、健全な溶接金属１１を形成し
て行く。DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic diagram of the present welding method, and FIG. 2 is a groove sectional view of the same. Figure 1
In FIG. 2, a backing material 3 is provided on the back side of a vertical butt joint groove 2 having a trapezoidal cross-section with different groove widths on the front surface side and the back surface side of the thick welded material 1, and a water-cooled type on the front surface side. A torch 6a for feeding the flux-containing welding wire 5a from the tip and a torch 6 for feeding the welding wire 5b having the same diameter or slightly larger diameter from the tip are respectively applied to the groove 2 in the groove 2.
b and b are connected by the insulating connecting plate 13 and inserted side by side in the plate thickness direction. Then, power is supplied to the back side welding wire 5a and the front side welding wire 5b, and at this time, the welding current is about 50A.
The latter is high, and the welding voltage is increased by about 5 V to generate the arcs 7a and 7b, respectively, and the heat source ranges 12a and 12b of the arcs 7a and 7b are shown in FIG.
The latter is enlarged as shown in (A) and (B). While generating these arcs 7a and 7b, a shield gas of carbon dioxide gas or carbon dioxide gas + argon gas is jetted from the shield gas introduction pipe 8 of the sliding die 4 to shield the arcs 7a and 7b, and further to serve as a shield gas. The molten metal 10 is shielded by the molten slag 9 and welded. At this time, the torches 6a, 6b are oscillated in the oscillating direction S along the plate thickness, and thereby the molten metal 10 is stirred and raised along with the progress of welding to form a sound weld metal 11.
【０００８】かくして第１番目のエレクトロガス溶接方
法においては、裏面側溶接ワイヤ５ａ，表面側溶接ワイ
ヤ５ｂに供給する電力を後者を前者より大きくし、その
熱源範囲１２ａ，１２ｂを後者すなわち表面側を大きく
して、両溶接ワイヤ５ａ，５ｂ板厚方向にオシレートさ
せながら溶接することにより、被溶接材１の材質の脆化
を防ぎ高品質の溶接継手を得ることができる。Thus, in the first electrogas welding method, the electric power supplied to the back surface side welding wire 5a and the front surface side welding wire 5b is made larger than that of the former, and the heat source ranges 12a and 12b are set to the latter, that is, the surface side. By increasing the size and welding while oscillating both welding wires 5a, 5b in the plate thickness direction, it is possible to prevent the material of the material to be welded 1 from becoming brittle and obtain a high quality welded joint.
【０００９】次に第２番目の本発明の実施形態を図３〜
図６について説明すると、図３は本溶接方法を実施する
装置の模式図、図４は同上における溶接電流の制御回路
の系統図、図５は同上における開先断面図、図６は同上
における溶接電流の波形図である。図３，図４におい
て、厚肉の被溶接材１の表面側と裏面側で開先巾が異な
る台形状断面の立向き突合わせ継手開先２の裏面側に裏
当材３を、表面側にシールドガス導入管８が付いた水冷
式摺動当金４をそれぞれ当てがうとともに、この開先２
内に先端からフラックス入りの溶接ワイヤ５を送り出す
１個のトーチ６を挿入する。トーチ６の基端部が取付け
られたスライド軸１４はスライドベース１５に摺動可能
に支持され、スライド軸１４の先端は固定ピン１６によ
りリンク１７に回転自在に連結され、リンク１７の他端
は移動ピン２０によりスライドバー２２に回転自在に連
結されている。スライドバー２２は歯車１９に固定され
ているとともに歯車１９はオシレート駆動モーター１８
に直結されており、これによってオシレート駆動モータ
ー１８の回転運動２１はスライド軸１４の直線往復運動
に変わり、被溶接材１の板厚に応じたトーチ６のオシレ
ートが得られ、このオシレート巾は、スライドバー２２
の長孔２３を移動する移動ピン２０の固定位置を調整す
ることにより適宜設定される。Next, a second embodiment of the present invention will be described with reference to FIGS.
6 will be described. FIG. 3 is a schematic diagram of an apparatus for carrying out the present welding method, FIG. 4 is a system diagram of a welding current control circuit in the same as above, FIG. 5 is a groove cross-sectional view in the same as above, and FIG. 6 is welding in the same as above. It is a wave form diagram of a current. In FIGS. 3 and 4, a backing material 3 is provided on the back side of a vertical butt joint groove 2 having a trapezoidal cross-section with different groove widths on the front side and the back side of the thick welded material 1. Apply each of the water-cooling type slide members 4 with the shield gas introducing pipe 8 to the groove 2
One torch 6 for sending out the welding wire 5 containing flux from the tip is inserted therein. The slide shaft 14 to which the base end of the torch 6 is attached is slidably supported by a slide base 15, the tip of the slide shaft 14 is rotatably connected to a link 17 by a fixing pin 16, and the other end of the link 17 is It is rotatably connected to a slide bar 22 by a moving pin 20. The slide bar 22 is fixed to the gear 19, and the gear 19 is connected to the oscillating drive motor 18
The rotary motion 21 of the oscillating drive motor 18 is changed to the linear reciprocating motion of the slide shaft 14 by this, and the oscillating of the torch 6 according to the plate thickness of the workpiece 1 is obtained, and the oscillating width is Slide bar 22
It is appropriately set by adjusting the fixed position of the moving pin 20 that moves in the long hole 23.
【００１０】また歯車１９にオシレート位置裏面側Ａ
点，表面側Ｂ点を電気的に検出するためのポテンショメ
ーター２４が対向設置されており、なおこのオシレート
位置検出手段としては、オシレート駆動モーター１８と
してパルスモーターを使用しそのパルス数をカウントす
る機構を用いてもよい。そしてこのポテンショメーター
２４の出力信号は分周器２５，リレー装置２６及び溶接
電流調整抵抗器２７からなる溶接電流調整装置２８を介
して溶接電源２９に接続されている。なお溶接電流調整
装置２８には、開先両端で停止している時間を設定する
ための両端位置確認器３０及び停止時間設定器３１が組
込まれ、その出力端がオシレート駆動モーター１８に接
続されている。The gear 19 has an oscillating position on the back side A.
A potentiometer 24 for electrically detecting the point and the point B on the surface side is installed oppositely. As the oscillating position detecting means, a mechanism for counting the number of pulses by using a pulse motor as the oscillating drive motor 18 is used. You may use. The output signal of the potentiometer 24 is connected to a welding power source 29 via a welding current adjusting device 28 including a frequency divider 25, a relay device 26 and a welding current adjusting resistor 27. It should be noted that the welding current adjusting device 28 incorporates a both end position confirming device 30 and a stop time setting device 31 for setting the stop time at both ends of the groove, and its output end is connected to the oscillating drive motor 18. There is.
【００１１】このような装置構成により、開先２内にト
ーチ６から溶接ワイヤ５を送り出すとともに電力を供給
し、同溶接ワイヤ５を板厚方向に自動的にオシレートさ
せながら溶接進行とともに上昇させる。このとき溶接ワ
イヤ５のオシレートと同時に溶接電流を制御して開先巾
に応じた溶接電流，溶接電圧で溶接を行う。すなわち図
５において、同図（Ａ）の溶接ワイヤ５が開先２の裏面
側にあるとき熱源範囲１２が小さく、オシレート方向Ｓ
1 にオシレートさせるに伴い、図６に示すように表面側
位置に至るまで溶接電流を徐々に増加させ、図５（Ｂ）
の溶接ワイヤ５が開先２の表面側に達したとき熱源範囲
１２′が最大となり、次いでオシレート方向Ｓ2 にオシ
レートさせるに伴い、図６に示すように裏面側位置に至
るまで溶接電流を徐々に減少させ、再び図５（Ａ）の溶
接ワイヤ５が裏面側に達したとき熱源範囲１２が最小と
なるように制御する。なお溶接電圧は溶接電流に適合し
た値をプリセットしておき、溶接電流の増加又は減少に
対して比例的に増減するようにする。また図６に示すよ
うに、溶接ワイヤ５が表面側，裏面側にあるとき、それ
ぞれＴ1 ，Ｔ2 sec オシレートを一時的に停止させても
よい。With such a device configuration, the welding wire 5 is sent out from the torch 6 into the groove 2 and electric power is supplied, and the welding wire 5 is automatically oscillated in the plate thickness direction and raised as the welding progresses. At this time, the welding current is controlled simultaneously with the oscillating of the welding wire 5 to perform welding with the welding current and the welding voltage according to the groove width. That is, in FIG. 5, when the welding wire 5 of FIG. 5A is on the back surface side of the groove 2, the heat source range 12 is small and the oscillating direction S
As shown in FIG. 6, the welding current is gradually increased until the surface side position is reached, as shown in FIG. 5 (B).
Welding wire 5 becomes the maximum heat source range 12 'when it reaches the surface side of the groove 2, and then with the is oscillating in the oscillating direction S 2, gradually the welding current up to the back surface side position as shown in FIG. 6 The heat source range 12 is controlled to be minimum when the welding wire 5 in FIG. 5A reaches the back surface side again. The welding voltage is preset to a value suitable for the welding current so that the welding voltage is increased or decreased in proportion to the increase or decrease of the welding current. Further, as shown in FIG. 6, when the welding wire 5 is on the front surface side and the back surface side, respectively, the T 1 and T 2 sec oscillations may be temporarily stopped.
【００１２】かくして第２番目のエレクトロガス溶接方
法においては、１本の溶接ワイヤ５のオシレート位置Ｂ
点における溶接電流をＡ点における溶接電流より大きく
し、熱源範囲１２，１２′を後者すなわち表面側を大き
くして溶接することにより、被溶接材１の材質の劣化を
防ぎ高品質の溶接継手を得ることができる。Thus, in the second electrogas welding method, the oscillating position B of one welding wire 5 is
The welding current at the point is made larger than the welding current at the point A, and the heat source ranges 12 and 12 'are welded by making the latter, that is, the surface side larger, to prevent deterioration of the material of the workpiece 1 and to obtain a high quality welded joint. Obtainable.
【００１３】[0013]
【実施例】以下に第１番目及び第２番目の発明の実施例
を説明する。まず第１番目の発明として、被溶接材１に
板厚５０mmの軟鋼板を用い、開先２の開先角度は２５度
とし、裏面側開先巾を６mmとしてＶ型開先を形成し、溶
接ワイヤ５ａ，５ｂは同一直径1.6 mmのフラックス入り
ワイヤを用いて、溶接ワイヤ５ａに溶接電流３３０〜３
５０Ａ，溶接電圧３２〜３４Ｖを、溶接ワイヤ５ｂに溶
接電流３８０〜４００Ａ，溶接電圧３７〜４０Ｖをそれ
ぞれ印加し、オシレート巾を５〜１０mmとし、シールド
ガス３０〜４０ l/minでエレクトロガス溶接したとこ
ろ、被溶接材１の劣化もなく溶込良好で溶接欠陥のない
健全な溶接継手が得られた。次に第２番目の発明の実施
例として、上記同様のＶ型開先に対し、溶接ワイヤ５が
裏面側Ａ点にあるときの溶接電流３００〜３３０Ａ，溶
接電圧３４〜３５Ｖ，停止時間0.3 sec とし、溶接ワイ
ヤ５が表面側Ｂ点にあるときの溶接電流３６０〜３８０
Ａ，溶接電圧３６〜３７Ｖ，停止時間0.5 sec とし、オ
シレート巾を４０mm，オシレート速度１０〜４０mm／se
c ，シールドガス３０〜４０ l/minでエレクトロガス溶
接したところ、被溶接材１の劣化もなく溶込良好で溶接
欠陥のない健全な溶接継手が得られた。Embodiments Embodiments of the first and second inventions will be described below. First, as the first invention, a mild steel plate having a plate thickness of 50 mm is used as the material to be welded 1, the groove angle of the groove 2 is 25 degrees, and the back side groove width is 6 mm to form a V-shaped groove, The welding wires 5a and 5b are flux-cored wires having the same diameter of 1.6 mm.
50 A, welding voltage 32 to 34 V, welding current 380 to 400 A and welding voltage 37 to 40 V were applied to the welding wire 5b, respectively, the oscillating width was 5 to 10 mm, and the shield gas was 30 to 40 l / min for electrogas welding. However, the welded material 1 was not deteriorated, the penetration was good, and a sound welded joint without welding defects was obtained. Next, as a second embodiment of the invention, a welding current of 300 to 330 A, a welding voltage of 34 to 35 V, and a stop time of 0.3 sec when the welding wire 5 is at the point A on the back surface with respect to the same V-shaped groove as described above. And welding currents 360 to 380 when the welding wire 5 is at the point B on the surface side.
A, welding voltage 36 to 37 V, stop time 0.5 sec, oscillating width 40 mm, oscillating speed 10 to 40 mm / se
c. Electrogas welding with a shield gas of 30 to 40 l / min resulted in a good welded joint without deterioration of the material to be welded 1 and without welding defects.
【００１４】[0014]
【発明の効果】要するに本発明によれば、厚肉立向き突
合わせ継手の表面側が裏面側より広巾の開先にエレクト
ロガス溶接を施すにあたり、上記開先内に板厚方向に並
べて２本の溶接ワイヤを送給し、両溶接ワイヤによるア
ークの熱源範囲を表面側を裏面側より大きくするととも
に両溶接ワイヤを板厚方向にオシレートさせて溶接する
ことと、厚肉立向き突合わせ継手の表面側が裏面側より
広巾の開先にエレクトロガス溶接を施すにあたり、上記
開先内に１本の溶接ワイヤを送給し、同溶接ワイヤを開
先の板厚方向へオシレートさせるとともにオシレートに
応じて溶接電流を変化させて、同溶接ワイヤによるアー
クの熱源範囲を表面側を裏面側より大きくして溶接する
こととにより、厚肉立向き突合わせ継手に対して、被溶
接材の材質を劣化させることなく高品質かつ高能率な溶
接が達成できるエレクトロガス溶接方法を得るから、本
発明は産業上極めて有益なものである。In summary, according to the present invention, when electrogas welding is applied to a groove in which the front surface side of the thick butt joint is wider than the rear surface side, two pieces are arranged side by side in the plate thickness direction in the groove. The welding wire is fed, the heat source range of the arc by both welding wires is made larger on the front side than the back side, and both welding wires are oscillated in the plate thickness direction for welding, and the surface of the thick-walled vertical butt joint When performing electrogas welding on a groove whose side is wider than the back side, one welding wire is fed into the groove, and the welding wire is oscillated in the plate thickness direction of the groove and welded in accordance with the oscillation. Degrading the material of the material to be welded against a thick vertical butt joint by changing the current and welding with the heat source range of the arc from the same welding wire being larger on the front side than on the back side. Since high quality and high efficiency welding obtain electro-gas welding method can be achieved without the present invention is extremely useful industrially.
【図１】本発明エレクトロガス溶接方法の第１番目の発
明の実施形態の模式図である。FIG. 1 is a schematic view of an embodiment of the first invention of the electrogas welding method of the present invention.
【図２】同上における開先断面図である。FIG. 2 is a groove cross-sectional view of the above.
【図３】第２番目の発明を実施する装置の模式図であ
る。FIG. 3 is a schematic view of an apparatus for carrying out the second invention.
【図４】同上における溶接電流の制御回路の系統図であ
る。FIG. 4 is a system diagram of a welding current control circuit in the above.
【図５】同上における開先断面図である。FIG. 5 is a groove cross-sectional view of the above.
【図６】同上における溶接電流の波形図である。FIG. 6 is a waveform diagram of a welding current in the same as above.
【図７】従来の溶接方法の模式図である。FIG. 7 is a schematic diagram of a conventional welding method.
【図８】同上における開先断面図である。FIG. 8 is a groove cross-sectional view of the above.
１ 被溶接材 ２ 立向き突合わせ継手開先 ３ 裏当材 ４ 摺動当金 ５，５ａ，５ｂ 溶接ワイヤ ６，６ａ，６ｂ トーチ ７，７ａ，７ｂ アーク ８ シールドガス導入管 ９ 溶融スラグ 10 溶融金属 11 溶接金属 12, 12′, 12ａ，12ｂ 熱源範囲 13 絶縁性連結板 14 スライド軸 15 スライドベース 16 固定ピン 17 リンク 18 オシレート駆動モーター 19 歯車 20 移動ピン 21 回転運動 22 スライドバー 23 長孔 24 ポテンショメーター 25 分周器 26 リレー装置 27 溶接電流調整抵抗器 28 溶接電流調整装置 29 溶接電源 30 両端位置確認器 31 停止時間設定器 Ｓ，Ｓ1 ，Ｓ2 オシレート方向1 Welded material 2 Vertical butt joint groove 3 Backing material 4 Sliding metal 5,5a, 5b Welding wire 6,6a, 6b Torch 7,7a, 7b Arc 8 Shield gas introduction pipe 9 Molten slag 10 Melting Metal 11 Weld metal 12, 12 ', 12a, 12b Heat source range 13 Insulating connecting plate 14 Slide shaft 15 Slide base 16 Fixed pin 17 Link 18 Oscillating drive motor 19 Gear 20 Move pin 21 Rotational movement 22 Slide bar 23 Long hole 24 Potentiometer 25 Frequency divider 26 Relay device 27 Welding current adjusting resistor 28 Welding current adjusting device 29 Welding power source 30 Both end position checker 31 Stop time setting device S, S 1 , S 2 Oscillate direction
フロントページの続き (72)発明者 河野 隆之 長崎市深堀町５丁目717番１号 三菱重工 業株式会社長崎研究所内 (72)発明者 郷田 穂積 長崎市深堀町５丁目717番１号 三菱重工 業株式会社長崎研究所内Front page continuation (72) Inventor Takayuki Kono 5-717-1, Fukahori-cho, Nagasaki City, Nagasaki Research Institute, Mitsubishi Heavy Industries (72) Inventor Hozumi Gouda 5-717-1, Fukahori-cho, Nagasaki-shi Mitsubishi Heavy Industries Company Nagasaki Institute
Claims (3)
側より広巾の開先にエレクトロガス溶接を施すにあた
り、上記開先内に板厚方向に並べて２本の溶接ワイヤを
送給し、両溶接ワイヤによるアークの熱源範囲を表面側
を裏面側より大きくするとともに両溶接ワイヤを板厚方
向にオシレートさせて溶接することを特徴とするエレク
トロガス溶接方法。1. When performing electrogas welding on a groove whose front surface side of a thick-walled vertical butt joint is wider than the rear surface side, two welding wires are fed in the groove in the plate thickness direction, An electrogas welding method characterized by increasing the heat source range of the arc by both welding wires from the front surface side to the back surface side and oscillating both welding wires in the plate thickness direction for welding.
側より広巾の開先にエレクトロガス溶接を施すにあた
り、上記開先内に１本の溶接ワイヤを送給し、同溶接ワ
イヤを開先の板厚方向へオシレートさせるとともにオシ
レートに応じて溶接電流を変化させて、同溶接ワイヤに
よるアークの熱源範囲を表面側を裏面側より大きくして
溶接することを特徴とするエレクトロガス溶接方法。2. When performing electrogas welding on a groove in which the front surface side of the thick-walled vertical butt joint is wider than the rear surface side, one welding wire is fed into the groove and the welding wire is opened. An electrogas welding method, which comprises oscillating in the above plate thickness direction and changing a welding current in accordance with the oscillating to make the heat source range of the arc by the welding wire larger on the front surface side than on the back surface side.
側より広巾の開先内に１本のエレクトロガス溶接ワイヤ
を送給する１個のトーチと、上記トーチを支持して開先
の板厚方向へオシレートさせる機構と、上記オシレート
機構に関連して設置されトーチのオシレートに応じて溶
接電流を変化させる機構とを具えたことを特徴とするエ
レクトロガス溶接装置。3. A torch for feeding one electrogas welding wire into a groove whose front surface side of a thick-walled vertical butt joint is wider than the rear surface side, and a torch for supporting the torch. An electrogas welding apparatus comprising: a mechanism for oscillating in the plate thickness direction; and a mechanism installed in association with the oscillating mechanism for changing a welding current according to the oscillating of the torch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27052895A JPH08187579A (en) | 1994-10-31 | 1995-09-25 | Method of electrogas arc welding and its device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-290391 | 1994-10-31 | ||
| JP29039194 | 1994-10-31 | ||
| JP27052895A JPH08187579A (en) | 1994-10-31 | 1995-09-25 | Method of electrogas arc welding and its device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08187579A true JPH08187579A (en) | 1996-07-23 |
Family
ID=26549247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27052895A Withdrawn JPH08187579A (en) | 1994-10-31 | 1995-09-25 | Method of electrogas arc welding and its device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08187579A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7291807B2 (en) | 2002-05-13 | 2007-11-06 | Honda Giken Kogyo Kabushiki Kaisha | TIG welding equipment and TIG welding method |
| JP2008100236A (en) * | 2006-10-17 | 2008-05-01 | Kawada Industries Inc | Method and device for manufacturing steel box pillar |
| JP2008221305A (en) * | 2007-03-14 | 2008-09-25 | Kobe Steel Ltd | Single electrode electrogas arc welding method |
| KR100979836B1 (en) * | 2007-01-18 | 2010-09-02 | 가부시키가이샤 아이에이치아이 | Method of vertical-position welding |
| KR101246532B1 (en) * | 2011-02-24 | 2013-03-26 | 현대제철 주식회사 | Tandem based electro gas welding device |
| KR101253858B1 (en) * | 2010-12-28 | 2013-04-12 | 주식회사 포스코 | Electro Gas Arc Welding Device and Welding Method |
| WO2014122789A1 (en) * | 2013-02-06 | 2014-08-14 | 新日鐵住金株式会社 | Multi-electrode electrogas arc welding method for thick steel plates and multi-electrode electrogas arc circumferential welding method for steel pipes |
| CN108213661A (en) * | 2017-12-29 | 2018-06-29 | 南京理工大学 | A kind of welding method of the vertical high-strength steel member of vertical position welding of robot double wire |
| CN108856970A (en) * | 2018-08-24 | 2018-11-23 | 南京钢铁股份有限公司 | The welding method of tandem electrogas welding suitable for high strength ultra-thick steel plates |
| CN109047997A (en) * | 2018-08-10 | 2018-12-21 | 武汉科技大学 | The welding method of tandem electrogas welding suitable for super large weld heat input |
| CN110369829A (en) * | 2019-08-06 | 2019-10-25 | 深圳市瑞凌实业股份有限公司 | A kind of electro-gas (enclosed) welding device and welding method |
-
1995
- 1995-09-25 JP JP27052895A patent/JPH08187579A/en not_active Withdrawn
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7291807B2 (en) | 2002-05-13 | 2007-11-06 | Honda Giken Kogyo Kabushiki Kaisha | TIG welding equipment and TIG welding method |
| JP2008100236A (en) * | 2006-10-17 | 2008-05-01 | Kawada Industries Inc | Method and device for manufacturing steel box pillar |
| KR100979836B1 (en) * | 2007-01-18 | 2010-09-02 | 가부시키가이샤 아이에이치아이 | Method of vertical-position welding |
| JP2008221305A (en) * | 2007-03-14 | 2008-09-25 | Kobe Steel Ltd | Single electrode electrogas arc welding method |
| KR101253858B1 (en) * | 2010-12-28 | 2013-04-12 | 주식회사 포스코 | Electro Gas Arc Welding Device and Welding Method |
| KR101246532B1 (en) * | 2011-02-24 | 2013-03-26 | 현대제철 주식회사 | Tandem based electro gas welding device |
| WO2014122789A1 (en) * | 2013-02-06 | 2014-08-14 | 新日鐵住金株式会社 | Multi-electrode electrogas arc welding method for thick steel plates and multi-electrode electrogas arc circumferential welding method for steel pipes |
| CN108213661A (en) * | 2017-12-29 | 2018-06-29 | 南京理工大学 | A kind of welding method of the vertical high-strength steel member of vertical position welding of robot double wire |
| CN109047997A (en) * | 2018-08-10 | 2018-12-21 | 武汉科技大学 | The welding method of tandem electrogas welding suitable for super large weld heat input |
| CN108856970A (en) * | 2018-08-24 | 2018-11-23 | 南京钢铁股份有限公司 | The welding method of tandem electrogas welding suitable for high strength ultra-thick steel plates |
| CN110369829A (en) * | 2019-08-06 | 2019-10-25 | 深圳市瑞凌实业股份有限公司 | A kind of electro-gas (enclosed) welding device and welding method |
| CN110369829B (en) * | 2019-08-06 | 2021-08-31 | 深圳市瑞凌实业集团股份有限公司 | Electro-gas welding device and welding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20021203 |