JP2000094137A - Tig welding torch - Google Patents

Tig welding torch

Info

Publication number
JP2000094137A
JP2000094137A JP10268539A JP26853998A JP2000094137A JP 2000094137 A JP2000094137 A JP 2000094137A JP 10268539 A JP10268539 A JP 10268539A JP 26853998 A JP26853998 A JP 26853998A JP 2000094137 A JP2000094137 A JP 2000094137A
Authority
JP
Japan
Prior art keywords
electrode
electrodes
flat
collet
shape
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
Application number
JP10268539A
Other languages
Japanese (ja)
Other versions
JP3767203B2 (en
Inventor
Minoru Yamada
実 山田
Minoru Tagami
稔 田上
Kiyobumi Ishikawa
清文 石川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IHI Corp filed Critical IHI Corp
Priority to JP26853998A priority Critical patent/JP3767203B2/en
Publication of JP2000094137A publication Critical patent/JP2000094137A/en
Application granted granted Critical
Publication of JP3767203B2 publication Critical patent/JP3767203B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)

Abstract

PROBLEM TO BE SOLVED: To enable a tig welding torch to weld a narrow gap by making an electrode structural body in a flat cross section shape so that no welding wire passes between the electrodes and the width dimension can be made small. SOLUTION: A slender flat insulation plate 22 is held by two flat electrodes 23 from both right and left sides, a welding wire 14 is passed to the backward position deviated from the position of the insulation plate 22 between the electrodes to constitute an electrode structural body 24 made to a totally flat cross section shape. The cross section shape of the electrodes 23 is made to an elliptical, two-split elliptical or polygonal shape. The electrode structural body 24 is assembled with the center part of a torch main body through a collet 25 made of peripherally four-split structure comprising right and left collet bodies 25a and forward and rear spacer bodies 25b and projected downward through a gas cup.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は狭開先溶接に用いる
TIG溶接トーチに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TIG welding torch used for narrow groove welding.

【0002】[0002]

【従来の技術】板材の如き部材を突き合わせて開先溶接
等を行う際に用いる従来のTIG溶接トーチは、図3に
その一例を示す如く、トーチ本体1の中央部に設けた上
下方向の電極挿通孔2の下端部に、テーパ部3を下端部
に有する筒状のコレットボディ4の上端部をねじ込み方
式により取り付け、該コレットボディ4内に、下部所要
範囲にスリット5を有し且つ下端部をコレットボディ4
のテーパ部3内面と係合するテーパ面としたコレット6
を挿入配置すると共に、該コレット6に、タングステン
電極7を上下方向に挿通保持させ、又、上記トーチ本体
1の電極挿通孔2内に位置するコレット6の上部位置
に、下端面がコレット6の上端面に当接するようにトー
チキャップ8を螺合配置して、該トーチキャップ8を締
め込むことによりコレット6の下端部をコレットボディ
4のテーパ部3内面に押し付けて電極7を固定させるよ
うにし、更に、上記コレットボディ4の下部外周に、外
胴9を一体に設けて、該外胴9の下端開口にガスレンズ
10を取り付け、且つ上記トーチ本体1の下部に、コレ
ットボディ4及び外胴9を取り囲むように、外胴9の外
周部へのねじ込みによりシールパッキン11aを介して
ガスカップ11を取り付け、トーチ本体1のガス供給路
12に供給したシールドガス13を、コレットボディ4
内から外胴9内に導き、ガスレンズ10を通してガスカ
ップ11の先端(下端)より放出させつつ、電極7の先
端で発生させたアークの熱により溶接ワイヤ14を溶融
させることにより開先等の溶接が行われるようにしてあ
る。
2. Description of the Related Art A conventional TIG welding torch used for performing groove welding or the like by abutting members such as plate members is provided with a vertical electrode provided at a central portion of a torch body 1 as shown in FIG. At the lower end of the insertion hole 2, the upper end of a cylindrical collet body 4 having a tapered portion 3 at the lower end is screwed in. The collet body 4 has a slit 5 in a lower required area and a lower end. Collet body 4
Collet 6 having a tapered surface engaged with the inner surface of tapered portion 3
And a tungsten electrode 7 is vertically inserted into and held by the collet 6, and a lower end face of the collet 6 is located at an upper position of the collet 6 located in the electrode insertion hole 2 of the torch body 1. The torch cap 8 is screwed and arranged so as to abut on the upper end face, and the lower end of the collet 6 is pressed against the inner surface of the tapered portion 3 of the collet body 4 by tightening the torch cap 8 so that the electrode 7 is fixed. Further, an outer body 9 is integrally provided on the outer periphery of the lower part of the collet body 4, a gas lens 10 is attached to a lower end opening of the outer body 9, and the collet body 4 and the outer body are provided below the torch body 1. The gas cup 11 is attached to the outer periphery of the outer body 9 via a seal packing 11 a by screwing it around the outer body 9 so as to surround the outer cylinder 9. The Dogasu 13, collet body 4
The welding wire 14 is melted by the heat of the arc generated at the tip of the electrode 7 while being guided from the inside to the inside of the outer shell 9 and discharged from the tip (lower end) of the gas cup 11 through the gas lens 10, thereby forming a groove or the like. Welding is performed.

【0003】ところで、近年、大電流を流せるようにし
て高速溶接を行うことができるように、電極を多電極方
式としたTIG溶接トーチが開発されている。この場
合、図3に示すようなコレット6を用いたのでは複数の
電極を固定保持することはできないので、たとえば、図
4(イ)(ロ)(ハ)にその一例を示す如く、分割型の
コレット15を採用したTIG溶接トーチ20としてあ
る。すなわち、円弧状とした2つのコレット体16を円
筒状に組み合わせ、且つ下端部外周にテーパ面17を形
成した構成のコレット15とし、円弧状平断面とした2
本の電極18で細長い平板状の絶縁板19を挟み且つ該
絶縁板19の中央部に溶接ワイヤ14を通すようにして
なる電極構造体21を、コレット15の内部空間に挿通
させるように組み付けてトーチ本体に支持させるように
したものである。4aはコレットボディ4の分割部に介
在させた絶縁体を示す。なお、図4(イ)(ロ)(ハ)
において、図3と同一部分には同一符号が付してある。
In recent years, a TIG welding torch using a multi-electrode system has been developed so that high-speed welding can be performed while allowing a large current to flow. In this case, since a plurality of electrodes cannot be fixed and held by using the collet 6 as shown in FIG. 3, for example, as shown in FIGS. The TIG welding torch 20 employs the collet 15 of FIG. That is, a collet 15 having a configuration in which two arc-shaped collet bodies 16 are combined in a cylindrical shape and a tapered surface 17 is formed on the outer periphery of a lower end portion is formed into an arc-shaped flat cross section.
An electrode structure 21 having an elongated flat insulating plate 19 interposed between the electrodes 18 and a welding wire 14 passing through the center of the insulating plate 19 is assembled so as to be inserted into the inner space of the collet 15. It is designed to be supported by the torch body. Reference numeral 4a denotes an insulator interposed between the divided portions of the collet body 4. 4 (a) (b) (c)
In FIG. 3, the same parts as those in FIG. 3 are denoted by the same reference numerals.

【0004】[0004]

【発明が解決しようとする課題】ところが、上記図4
(イ)(ロ)(ハ)に示したTIG溶接トーチ20の場
合、ガスカップ11の下端から突出する電極構造体21
の長さを長く設定することによって、厚板の狭開先溶接
を行うことができるものであるが、絶縁板19を挟む2
つの電極18が円弧状平断面としてあるので、電極構造
体21の幅寸法Wを小さくするのに限度があり(約12
mm程度)、狭開先溶接を行うにしても、適用できる開先
幅に限度がある。
However, FIG.
(B) In the case of the TIG welding torch 20 shown in (b) and (c), the electrode structure 21 protruding from the lower end of the gas cup 11
By setting the length to be long, narrow groove welding of a thick plate can be performed.
Since the two electrodes 18 have an arc-shaped flat cross section, there is a limit in reducing the width W of the electrode structure 21 (about 12).
mm), even if narrow groove welding is performed, there is a limit to the applicable groove width.

【0005】そこで、本発明は、より狭開先の溶接を行
うことができるようなTIG溶接トーチを提供しようと
するものである。
Accordingly, an object of the present invention is to provide a TIG welding torch capable of performing narrower groove welding.

【0006】[0006]

【課題を解決するための手段】本発明は、上記課題を解
決するために、細長い平板状の絶縁板を2本の電極で左
右両側から挾持してなる電極構造体を、該電極構造体を
周方向から保持するコレットを介してトーチ本体に支持
させるようにしてあるTIG溶接トーチにおいて、上記
絶縁板の電極間位置から外れた後方部に溶接ワイヤを挿
通させるようにし、且つ上記各電極の長手方向直角断面
を、左右方向に扁平な長円形状、該長円形状を左右方向
に2分した形状、又は、左右方向に扁平な多角形状とし
て、上記電極構造体を扁平断面形状とした構成とする。
In order to solve the above-mentioned problems, the present invention provides an electrode structure in which an elongated flat insulating plate is sandwiched between two left and right electrodes by two electrodes. In a TIG welding torch which is supported by a torch main body via a collet held from a circumferential direction, a welding wire is inserted into a rear portion of the insulating plate, which departs from a position between the electrodes, and a longitudinal length of each of the electrodes is provided. A cross section perpendicular to the direction, a flat oval shape in the left-right direction, a shape obtained by dividing the oval shape into two in the left-right direction, or a flat polygonal shape in the left-right direction, and a configuration in which the electrode structure has a flat cross-sectional shape. I do.

【0007】電極構造体を、溶接ワイヤが電極間を通ら
ないようにして扁平断面形状としたことから、幅寸法を
小さくすることができることにより、より狭い開先の溶
接に適用できるようになる。
Since the electrode structure has a flat cross-sectional shape so that the welding wire does not pass between the electrodes, the width can be reduced, so that it can be applied to welding with a narrower groove.

【0008】又、絶縁板の左右両側面部に長手方向に沿
うよう電極組付溝を設けて、該電極組付溝に電極を嵌入
させるようにした構成とすることによって、電極構造体
の組立構造をより安定化させることができる。
An electrode assembly groove is provided on both left and right side surfaces of the insulating plate so as to extend in the longitudinal direction, and an electrode is fitted into the electrode assembly groove. Can be further stabilized.

【0009】[0009]

【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明する。
Embodiments of the present invention will be described below with reference to the drawings.

【0010】図1(イ)(ロ)に示す如く、細長い平板
状とした絶縁板22の左右両側面部に所要形状とした電
極組付溝22aを長手方向に沿い設けると共に、これら
電極組付溝22aに、長手方向直角断面を左右方向に扁
平な長円形状とした電極23をそれぞれ嵌入させて、2
本の電極23で絶縁板22を挟持させ、且つ該絶縁板2
2の電極間位置から外れた後方位置に溶接ワイヤ14を
通すようにした扁平断面形状の電極構造体24を構成す
る。なお、本実施の形態では、絶縁板22は、製作の都
合上、溶接ワイヤ14を通す位置で前後に分割してあ
る。
As shown in FIGS. 1 (a) and 1 (b), an electrode mounting groove 22a having a required shape is provided along the longitudinal direction on both left and right side surfaces of an elongated flat insulating plate 22, and these electrode mounting grooves are provided. An electrode 23 having a cross section perpendicular to the longitudinal direction oblong in the left-right direction is fitted into each of the electrodes 22a.
The insulating plate 22 is sandwiched between the two electrodes 23 and the insulating plate 2
An electrode structure 24 having a flat cross-sectional shape is formed so that the welding wire 14 passes through the rear position deviated from the position between the two electrodes. In the present embodiment, the insulating plate 22 is divided into front and rear portions at a position where the welding wire 14 is passed for convenience of manufacture.

【0011】上記構成とした電極構造体24は、分割構
造のコレット25に保持させるようにしてある。該コレ
ット25は、絶縁体製の左右のコレット体25aと、該
左右のコレット体25aの端部間に介在させるようにし
た絶縁体製の前後のスペーサ体25bとからなる周方向
4分割構造とし、且つ下端外周に、コレットボディ4の
テーパ部3の内面に係合させるためのテーパ面25cを
形成してなり、上記コレットボディ4を、図3に示すト
ーチ本体1の電極挿通孔2の下端部にねじ込み、ガスカ
ップ11から上記電極構造体24を所要長さ突出させる
ようにしてある。
The above-structured electrode structure 24 is held by a collet 25 having a divided structure. The collet 25 has a circumferential four-segment structure including left and right collet bodies 25a made of an insulator and front and rear spacer bodies 25b made of an insulator interposed between the ends of the left and right collet bodies 25a. A tapered surface 25c for engaging the inner surface of the tapered portion 3 of the collet body 4 is formed on the outer periphery of the lower end, and the collet body 4 is connected to the lower end of the electrode insertion hole 2 of the torch main body 1 shown in FIG. The electrode structure 24 is screwed into the portion to protrude from the gas cup 11 by a required length.

【0012】本発明のTIG溶接トーチでは、電極構造
体24を、溶接ワイヤ14が電極23間を通らないよう
にして扁平断面形状としてあることから、幅寸法W′を
図4(ハ)に示すWよりも無理なく小さくすることがで
きる。したがって、より狭い幅の狭開先の溶接に適用す
ることができる。
In the TIG welding torch of the present invention, since the electrode structure 24 has a flat cross section so that the welding wire 14 does not pass between the electrodes 23, the width dimension W 'is shown in FIG. It can be reasonably smaller than W. Therefore, the present invention can be applied to welding of a narrow groove having a smaller width.

【0013】次に、図2(イ)(ロ)(ハ)(ニ)
(ホ)(ヘ)(ト)(チ)はいずれも本発明の他の実施
の形態を示すもので、上記実施の形態における電極構造
体24の電極23の他の断面形状例を示すものである。
すなわち、図2(イ)は図1(ロ)に示した長円形の電
極23の変形例で左右方向に扁平な楕円形状とした場合
を示し、図2(ロ)は図1(ロ)に示した長円形の電極
23を左方向で2分割した形状とした場合を示し、図2
(ハ)は図2(イ)に示した楕円形状の電極23を左右
方向に2分割した形状を示し、図2(ニ)は電極23を
左右方向に扁平な三角形状とした場合を示し、図2
(ホ)は電極23を左右方向に扁平な台形状とした場合
を示し、図2(ヘ)は電極23を左右方向に扁平な五角
形状とした場合を示し、図2(ト)は電極23を左右方
向に扁平な六角形状とした場合を示し、図2(チ)は電
極23を左右方向に扁平な矩形状とした場合を示すもの
である。
Next, FIG. 2 (a) (b) (c) (d)
(E), (f), (g), and (h) show other embodiments of the present invention, and show other examples of the cross-sectional shape of the electrode 23 of the electrode structure 24 in the above embodiment. is there.
That is, FIG. 2A shows a modified example of the elliptical electrode 23 shown in FIG. 1B, which has a flat elliptical shape in the left-right direction, and FIG. FIG. 2 shows a case where the elliptical electrode 23 shown is divided into two parts in the left direction.
(C) shows a shape obtained by dividing the elliptical electrode 23 shown in FIG. 2 (A) into two in the left-right direction, and FIG. FIG.
FIG. 2E shows a case where the electrode 23 has a flat trapezoidal shape in the left-right direction, FIG. 2F shows a case where the electrode 23 has a flat pentagonal shape in the left-right direction, and FIG. 2 shows a case where the electrode 23 has a flat hexagonal shape in the left-right direction, and FIG. 2 (h) shows a case where the electrode 23 has a flat rectangular shape in the left-right direction.

【0014】図2(イ)(ロ)(ハ)(ニ)(ホ)
(ヘ)(ト)(チ)に示すようにしても、上記実施の形
態の場合と同様な作用効果を奏することができ、又、こ
れら電極23の形状を選択することによって、アークの
指向性を管理することも可能となる。
FIG. 2 (a) (b) (c) (d) (e)
(F), (g) and (h) can provide the same operational effects as those of the above-described embodiment, and the directivity of the arc can be obtained by selecting the shape of these electrodes 23. Can also be managed.

【0015】なお、上記実施の形態では、電極構造体2
4の組立構造をより安定化させるために電極23を絶縁
板22の電極組付溝22aに嵌入させるようにした場合
を示したが、電極構造体24は、対応する形状のコレッ
ト25にて周方向から保持されるので、上記電極組付溝
22aは不要としてもよいこと、又、実施の形態では、
絶縁板22を、溶接ワイヤ14を通す位置で分割した構
造としてあるが、一体であってもよいこと、その他本発
明の要旨を逸脱しない範囲内において種々変更を加え得
ることは勿論である。
In the above embodiment, the electrode structure 2
4 shows a case where the electrode 23 is fitted into the electrode mounting groove 22a of the insulating plate 22 in order to further stabilize the assembly structure, but the electrode structure 24 is formed by a collet 25 of a corresponding shape. Since it is held from the direction, the above-mentioned electrode assembling groove 22a may be unnecessary, and in the embodiment,
Although the insulating plate 22 is divided at the position where the welding wire 14 is passed, the insulating plate 22 may be integrally formed, and it is needless to say that various changes can be made without departing from the gist of the present invention.

【0016】[0016]

【発明の効果】以上述べた如く、本発明のTIG溶接ト
ーチによれば、細長い平板状の絶縁板を2本の電極で左
右両側から挾持してなる電極構造体を、該電極構造体を
周方向から保持するコレットを介してトーチ本体に支持
させるようにしてあるTIG溶接トーチにおいて、上記
絶縁板の電極間位置から外れた後方部に溶接ワイヤを挿
通させるようにし、且つ上記各電極の長手方向直角断面
を、左右方向に扁平な長円形状、該長円形状を左右方向
に2分した形状、又は、左右方向に扁平な多角形状とし
て、上記電極構造体を扁平断面形状とした構成としてあ
るので、電極構造体の幅寸法を小さくすることができ、
従来よりも狭い開先の溶接が可能となり、又、絶縁板の
左右両側面部に長手方向に沿うよう電極組付溝を設け
て、該電極組付溝に電極を嵌入させるようにした構成と
することにより、電極構造体の組立構造をより安定化さ
せることができる、等の優れた効果を発揮する。
As described above, according to the TIG welding torch of the present invention, an electrode structure in which an elongated flat insulating plate is sandwiched from both left and right sides by two electrodes is formed around the electrode structure. In a TIG welding torch which is supported by a torch body via a collet which is held from a direction, a welding wire is inserted through a rear portion of the insulating plate, which deviates from a position between the electrodes, and a longitudinal direction of each of the electrodes. The right-angled cross section is a flat oval shape in the left-right direction, a shape obtained by dividing the oval shape into two in the left-right direction, or a polygonal shape flat in the left-right direction, so that the electrode structure has a flat cross-sectional shape. Therefore, the width dimension of the electrode structure can be reduced,
Welding of a narrower groove than before becomes possible, and an electrode mounting groove is provided along the longitudinal direction on both left and right side surfaces of the insulating plate, and an electrode is fitted into the electrode mounting groove. Thereby, excellent effects such as stabilizing the assembly structure of the electrode structure can be exhibited.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のTIG溶接トーチの実施の一形態を示
すもので、(イ)は電極構造体を保持する部分の構造を
示す切断側面図、(ロ)は(イ)の切断平面図である。
FIG. 1 shows an embodiment of a TIG welding torch of the present invention, in which (a) is a cut side view showing a structure of a portion holding an electrode structure, and (b) is a cut plan view of (a). It is.

【図2】本発明の他の実施の形態を示すもので、(イ)
(ロ)(ハ)(ニ)(ホ)(ヘ)(ト)(チ)はいずれ
も異なる形状の電極を採用した電極構造体の断面図であ
る。
FIG. 2 shows another embodiment of the present invention.
(B), (c), (d), (e), (f), (g), and (h) are cross-sectional views of electrode structures employing electrodes having different shapes.

【図3】TIG溶接トーチの一例を示す概要図である。FIG. 3 is a schematic view showing an example of a TIG welding torch.

【図4】TIG溶接トーチの他の例を示すもので、
(イ)はガスカップ部分の外観図、(ロ)はコレット部
分の切断側面図、(ハ)は(ロ)の切断平面図である。
FIG. 4 shows another example of a TIG welding torch.
(A) is an external view of a gas cup portion, (B) is a cut side view of a collet portion, and (C) is a cut plan view of (B).

【符号の説明】[Explanation of symbols]

1 トーチ本体 14 溶接ワイヤ 22 絶縁板 22a 電極組付溝 23 電極 DESCRIPTION OF SYMBOLS 1 Torch main body 14 Welding wire 22 Insulating plate 22a Electrode assembling groove 23 Electrode

───────────────────────────────────────────────────── フロントページの続き (72)発明者 石川 清文 神奈川県横浜市磯子区新中原町1番地 石 川島播磨重工業株式会社技術研究所内 Fターム(参考) 4E001 AA03 BB07 DB01 DF06 LF02 LH05 MD02 MD08 QA04  ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Kiyofumi Ishikawa 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishikawajima-Harima Heavy Industries, Ltd. F-term (reference) 4E001 AA03 BB07 DB01 DF06 LF02 LH05 MD02 MD08 QA04

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 細長い平板状の絶縁板を2本の電極で左
右両側から挾持してなる電極構造体を、該電極構造体を
周方向から保持するコレットを介してトーチ本体に支持
させるようにしてあるTIG溶接トーチにおいて、上記
絶縁板の電極間位置から外れた後方部に溶接ワイヤを挿
通させるようにし、且つ上記各電極の長手方向直角断面
を、左右方向に扁平な長円形状、該長円形状を左右方向
に2分した形状、又は、左右方向に扁平な多角形状とし
て、上記電極構造体を扁平断面形状とした構成を有する
ことを特徴とするTIG溶接トーチ。
An electrode structure comprising an elongated flat insulating plate sandwiched between left and right sides by two electrodes is supported by a torch body via a collet which holds the electrode structure in a circumferential direction. In a TIG welding torch, a welding wire is inserted through a rear portion of the insulating plate, which is separated from the inter-electrode position, and a cross section of each electrode at right angles in the longitudinal direction is formed into a flat oval shape in the left-right direction. A TIG welding torch characterized in that the electrode structure has a flat cross-sectional shape as a shape obtained by dividing a circular shape into two in the left-right direction or a polygonal shape flat in the left-right direction.
【請求項2】 絶縁板の左右両側面部に長手方向に沿う
よう電極組付溝を設けて、該電極組付溝に電極を嵌入さ
せるようにした請求項1記載のTIG溶接トーチ。
2. The TIG welding torch according to claim 1, wherein an electrode assembling groove is provided on both left and right side surfaces of the insulating plate along the longitudinal direction, and the electrode is fitted into the electrode assembling groove.
JP26853998A 1998-09-22 1998-09-22 TIG welding torch Expired - Lifetime JP3767203B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26853998A JP3767203B2 (en) 1998-09-22 1998-09-22 TIG welding torch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26853998A JP3767203B2 (en) 1998-09-22 1998-09-22 TIG welding torch

Publications (2)

Publication Number Publication Date
JP2000094137A true JP2000094137A (en) 2000-04-04
JP3767203B2 JP3767203B2 (en) 2006-04-19

Family

ID=17459940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26853998A Expired - Lifetime JP3767203B2 (en) 1998-09-22 1998-09-22 TIG welding torch

Country Status (1)

Country Link
JP (1) JP3767203B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1299872C (en) * 2004-10-22 2007-02-14 哈尔滨工业大学 Dual tungsten electrodes welding torch in use for argon are welding
CN100429031C (en) * 2004-01-15 2008-10-29 株式会社大亨 Welding torch for milling head sleeve and tungsten-pole inert gas protection welding
US8106327B2 (en) 2004-08-24 2012-01-31 Saipem S.P.A. ARC welding torch including a wire guide open on one side and arranged to receive a welding wire from a laterally spaced apart location and method of using same
CN102626813A (en) * 2011-11-09 2012-08-08 兰州理工大学 Coupling-arc AA-TIG welding method
JP2012240049A (en) * 2011-05-13 2012-12-10 Ihi Corp Welding torch
WO2012176724A1 (en) 2011-06-22 2012-12-27 株式会社Ihi Welding torch
KR20150144411A (en) * 2014-06-16 2015-12-28 현대중공업 주식회사 TIG Welding Apparatus

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100429031C (en) * 2004-01-15 2008-10-29 株式会社大亨 Welding torch for milling head sleeve and tungsten-pole inert gas protection welding
US8106327B2 (en) 2004-08-24 2012-01-31 Saipem S.P.A. ARC welding torch including a wire guide open on one side and arranged to receive a welding wire from a laterally spaced apart location and method of using same
CN1299872C (en) * 2004-10-22 2007-02-14 哈尔滨工业大学 Dual tungsten electrodes welding torch in use for argon are welding
JP2012240049A (en) * 2011-05-13 2012-12-10 Ihi Corp Welding torch
WO2012176724A1 (en) 2011-06-22 2012-12-27 株式会社Ihi Welding torch
EP2724809A4 (en) * 2011-06-22 2015-05-27 Ihi Corp Welding torch
US9278405B2 (en) 2011-06-22 2016-03-08 Ihi Corporation Welding torch
CN102626813A (en) * 2011-11-09 2012-08-08 兰州理工大学 Coupling-arc AA-TIG welding method
KR20150144411A (en) * 2014-06-16 2015-12-28 현대중공업 주식회사 TIG Welding Apparatus
KR101594035B1 (en) * 2014-06-16 2016-02-17 현대중공업 주식회사 TIG Welding Apparatus

Also Published As

Publication number Publication date
JP3767203B2 (en) 2006-04-19

Similar Documents

Publication Publication Date Title
JPH021352B2 (en)
JP2000094137A (en) Tig welding torch
KR880001023A (en) Color display system and tube
US3659133A (en) In-line type triple electron gun assembly
JP3700407B2 (en) TIG welding torch
JPH0821338B2 (en) Electron gun for color picture tube
JP3767194B2 (en) Welding torch
JP2004207219A (en) Spark plug
JP2570700B2 (en) Electron gun electrode assembly
KR910005832Y1 (en) Cathode structure for electron gun
JP3777727B2 (en) Welding torch
JPH0243093Y2 (en)
JPH0129016B2 (en)
JPH037088Y2 (en)
JPS6222751Y2 (en)
KR100205364B1 (en) Electron gun of crt
JP3629808B2 (en) Multi-electrode welding torch
JPH1110345A (en) Electrode fixing device of welding torch
KR910002935Y1 (en) Electrode assembly of cathode ray tube
JP2821133B2 (en) Electron gun structure for color picture tube
JP2000030635A (en) Support member for electron gun
KR920005864Y1 (en) In-line type electron gun with improved static convergence
JPS6138565B2 (en)
JP2801121B2 (en) Electronic component cap
JP2000061642A (en) Tig welding torch

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20050426

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20050510

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050624

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20060110

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060123

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090210

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100210

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100210

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110210

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110210

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120210

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130210

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130210

Year of fee payment: 7

EXPY Cancellation because of completion of term