JPS61273259A - Tig arc welding method - Google Patents
Tig arc welding methodInfo
- Publication number
- JPS61273259A JPS61273259A JP11483785A JP11483785A JPS61273259A JP S61273259 A JPS61273259 A JP S61273259A JP 11483785 A JP11483785 A JP 11483785A JP 11483785 A JP11483785 A JP 11483785A JP S61273259 A JPS61273259 A JP S61273259A
- Authority
- JP
- Japan
- Prior art keywords
- bead
- welding
- filler wire
- tig
- outer periphery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、■形突合せ継手を用いる例えば小径薄肉管の
全姿勢ＴＩＧ自動溶接方法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in an all-position TIG automatic welding method for, for example, small-diameter thin-walled pipes using a ■-shaped butt joint.
従来、Ｉ形突合せ継手を用いる小径薄肉鋼管の全姿勢Ｔ
ＩＧ溶接は、第４図および第５図に示すように管（１）
（２＋の突合せ部（３）外周に沿い矢印（α）方向に
ＴＩＧ）−チ（４）を移動して突合せ部（３）を全周に
亘りフィラーワイヤーを用いないで溶接することにより
行われていた。Traditionally, all postures T of small diameter thin-walled steel pipes using I-type butt joints
IG welding is performed on the pipe (1) as shown in Figures 4 and 5.
(TIG)-chi (4) is moved along the outer periphery of the butt part (3) of 2+ in the direction of the arrow (α), and the butt part (3) is welded over the entire circumference without using filler wire. was.
しかし、このような従来方法では、ＴＩＧＩ−一部（４
）が下向き姿勢（時計表示で１１時〜１２時〜１時）の
とき表ビード（５）Ｋ凹み（６）を生じる傾向があり、
まだＴＩＧ）−チ（４）が上向き姿勢（５時〜６時〜７
時）のとき裏波ビード（７）に凹み（８）を生じる傾向
がある。However, in such conventional methods, TIGI-part (4
) tends to form a dent in the front bead (5) and K (6) when it is in a downward position (from 11 o'clock to 12 o'clock to 1 o'clock on the clock display).
Still TIG) - Chi (4) in upward posture (5 o'clock - 6 o'clock - 7 o'clock)
When this occurs, a dent (8) tends to occur in the Uranami bead (7).
本発明は以上のような管の全姿勢ＴＩＧ溶接における問
題を解決するためになしたものである。The present invention was made to solve the above-mentioned problems in all-position TIG welding of pipes.
本発明では■形突合せ継手を用いる管の突合せ部外周に
沿いトーチを移動して管突合せ部をＴＩＧ溶接する方法
において、管突合せ部外周にフィラーワイヤーを添加し
ながら溶接する。In the present invention, in a method of TIG welding a pipe butt part by moving a torch along the outer periphery of the pipe butt part using a ■-shaped butt joint, welding is performed while adding filler wire to the outer periphery of the pipe butt part.
フィラーワイヤーは溶接熱により溶け、ビードの一部と
なって溶接部の形状を改善する。The filler wire melts due to welding heat and becomes part of the bead, improving the shape of the weld.
以下本発明の実施例を図面を参照しつつ説明する。 Embodiments of the present invention will be described below with reference to the drawings.
本発明では、工形突合せ継手を用いる小径薄肉鋼管の全
姿勢ＴＩＧ自動溶接において、第１図に示すように、管
（１１（２１の突合せ部（３）外周にフィラーワイヤー
（９）を添加しながら突合せ部（３）外周に沿いＴＩＧ
トーチ（４）を移動して溶接を行う。In the present invention, filler wire (9) is added to the outer periphery of the butt part (3) of the pipe (11 (21)) as shown in FIG. TIG along the outer periphery of the butt part (3) while
Move the torch (4) and perform welding.
このように突合せ部（３）の外周にフィラーワイヤー（
９）を添加しつつ溶接すると、フィラーワイヤー（９）
は溶接熱により溶け、ビードの一部となってビードの厚
みを増す。従って、第２図に示すようにＴＩＧ）−チ（
４）がどのような姿勢にあっても表ピード（５）、裏ビ
ード（７）を凸形に改善できる０
本発明の対象となる鋼管サイズは、肉厚Ｍａｚ６簡、外
径Ｍａｚ １ｓ ｏ■φである。In this way, filler wire (
When welding while adding filler wire (9),
melts due to welding heat, becomes part of the bead, and increases the thickness of the bead. Therefore, as shown in FIG.
4) The front bead (5) and back bead (7) can be improved to a convex shape no matter what position they are in. The steel pipe size targeted by the present invention is a wall thickness of Maz 6, and an outer diameter of Maz 1s o. It is φ.
また、適当な溶接条件の例は、 である。In addition, examples of suitable welding conditions are: It is.
裏波ピード高さとフィラーワイヤーの送給量（溶着量）
との関係の一例は第５図に示す如くであり、フィラーワ
イヤーの溶着量増加に従って裏波ビードの凹みが緩和さ
れ、やがて平滑になり、そして凸形に変わる。Uranami peed height and filler wire feeding amount (welding amount)
An example of the relationship is as shown in FIG. 5, where as the amount of filler wire welded increases, the concaveness of the Uranami bead is alleviated, eventually becomes smooth, and then changes to a convex shape.
なお本発明は上記実施例のみに限定されるものではなく
、管の材質、サイズ、溶接条件は必要に応じて変更して
もよいこと、その信奉発明の要旨を逸脱しない範囲にお
いて種々の変更を加え得ること、などは勿論である。It should be noted that the present invention is not limited to the above embodiments, and that the material, size, and welding conditions of the pipe may be changed as necessary, and various changes may be made without departing from the gist of the invention. Of course, there are other things that can be added.
前述したように本発明によれば、工形突合せ継手を用い
る小径薄肉鋼管などの全姿勢ＴＩ（）自動溶接における
表ピード、裏波ピードの形状を改善できる、という優れ
た効果を奏し得る。As described above, according to the present invention, it is possible to achieve the excellent effect of improving the shapes of the front pead and the back pea in all-position automatic TI () welding of small-diameter thin-walled steel pipes and the like using shaped butt joints.
第１図は本発明の詳細な説明する断面図、第２図は本発
明におけるトーチの方向とビード断面形状の関係を示す
図、第３図は裏波ビード高さとフィラーワイヤー送給量
との関係を示す線図、第４図は従来方法を説明する断面
図、第５図は従来方法におけるトーチの方向とビード断
面形状との関係を示す図である。
＋１） （２＋は管、（３）は突合せ部、（４）はＴＩ
Ｇトーチ、（５）は表ビード、（６）は表ビードの凹み
、（７）は裏ビード、（８）は裏ビードの凹み、（９）
はフィラーワイヤーを示す。FIG. 1 is a cross-sectional view explaining the present invention in detail, FIG. 2 is a diagram showing the relationship between the direction of the torch and the cross-sectional shape of the bead in the present invention, and FIG. 3 is a diagram showing the relationship between the Uranami bead height and filler wire feed rate. 4 is a cross-sectional view illustrating the conventional method, and FIG. 5 is a diagram showing the relationship between the direction of the torch and the cross-sectional shape of the bead in the conventional method. +1) (2+ is the tube, (3) is the butt part, (4) is TI
G torch, (5) is the front bead, (6) is the dent in the front bead, (7) is the back bead, (8) is the dent in the back bead, (9)
indicates filler wire.
Claims (1)
チを移動して管突合せ部をＴＩＧ溶接する方法において
、管突合せ部外周にフィラーワイヤーを添加しながら溶
接することを特徴とするＴＩＧ溶接方法。1) A TIG welding method in which a torch is moved along the outer periphery of the pipe butt part using an I-shaped butt joint to TIG weld the pipe butt part, and the welding is performed while adding filler wire to the outer periphery of the pipe butt part. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11483785A JPS61273259A (en) | 1985-05-28 | 1985-05-28 | Tig arc welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11483785A JPS61273259A (en) | 1985-05-28 | 1985-05-28 | Tig arc welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61273259A true JPS61273259A (en) | 1986-12-03 |
Family
ID=14647937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11483785A Pending JPS61273259A (en) | 1985-05-28 | 1985-05-28 | Tig arc welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61273259A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006231359A (en) * | 2005-02-24 | 2006-09-07 | Hitachi Ltd | Welding method and structure welded by the method |
| CN111299977A (en) * | 2020-03-19 | 2020-06-19 | 招商局重工（江苏）有限公司 | Tail shaft sleeve pipe joint lengthening process |
-
1985
- 1985-05-28 JP JP11483785A patent/JPS61273259A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006231359A (en) * | 2005-02-24 | 2006-09-07 | Hitachi Ltd | Welding method and structure welded by the method |
| CN111299977A (en) * | 2020-03-19 | 2020-06-19 | 招商局重工（江苏）有限公司 | Tail shaft sleeve pipe joint lengthening process |
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