JPS61159274A - Welding method - Google Patents
Welding methodInfo
- Publication number
- JPS61159274A JPS61159274A JP27847284A JP27847284A JPS61159274A JP S61159274 A JPS61159274 A JP S61159274A JP 27847284 A JP27847284 A JP 27847284A JP 27847284 A JP27847284 A JP 27847284A JP S61159274 A JPS61159274 A JP S61159274A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- copper plate
- groove
- plate
- sliding copper
- 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
- 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1
本発明はエレクトロガス溶接において、多層盛を可能と
し1パスの入熱量を少なりシ得る溶接方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a welding method in electrogas welding that enables multilayer welding and reduces the amount of heat input per pass.
[従来の技術1
エレクトロガス溶接は従来第3図に示すように、溶接す
る部材aの開先を突き合せ、該開先部の裏側に固定銅板
すを配置すると共に表側に摺動銅板Cを配置し、固定銅
板すと@動銅板Cに冷却水を送って、摺動銅板Cを溶接
速度に合せて移動させつつ、片側1パス溶接している。[Prior art 1] Conventionally, electrogas welding is performed by aligning the grooves of parts a to be welded together, placing a fixed copper plate on the back side of the grooves, and placing a sliding copper plate C on the front side, as shown in Fig. 3. Cooling water is sent to the fixed copper plate and moving copper plate C, and one pass welding is performed on one side while moving the sliding copper plate C in accordance with the welding speed.
[発明が解決しようとする問題点1
一般のTレフ1ヘロガス溶接でtよ、片面1パス又は両
面1パスで/fiTするので、板厚が大きくなると開先
断面積が大きくなり、溶接電流を大きくしないと健全な
溶接部が得られにくくなる。[Problem to be solved by the invention 1 In general T reflex 1 hero gas welding, /fiT is performed with one pass on one side or one pass on both sides, so as the plate thickness increases, the groove cross-sectional area increases, making it difficult to reduce the welding current. If it is not made larger, it will be difficult to obtain a sound weld.
従って、厚板はど溶接入熱が大きくなる。Therefore, the heat input when welding thick plates increases.
一般M4m物で衝撃性能(切欠靭性値)が要求されない
場合は入熱が大きくとも特に問題はないが、衝撃性能が
要求される場合、特に低温で使用される場合には、入熱
が大きいと溶接熱影響部の衝撃性能が確保できなくなる
ので、大入熱の溶接は適用不可能になる。どれだけの入
熱までなら良いかは、用材のt/を質及び必要イ■1性
能により黄なるが、現状では通常相別へのエレクトロガ
ス溶接の適用は一10°C程度の温度で使用する構造物
では不可能と考えられており、従来は表輿2パスで40
111mまでの板厚が上限であった。If impact performance (notch toughness value) is not required for a general M4m product, there is no particular problem even if the heat input is large, but if impact performance is required, especially if it is used at low temperatures, a large heat input may cause a problem. Since the impact performance of the weld heat affected zone cannot be ensured, welding with large heat input becomes impossible. The amount of heat input required depends on the material's quality and required performance, but at present, electrogas welding is usually used at a temperature of about -10°C. It is considered impossible for a structure that
The upper limit was a plate thickness of 111 m.
[問題蝿を解決するための手段]
上述の問題点を解決するため本発明では、間先に嵌入し
得る凸状の摺動銅板を用いて少イrくとも1パス溶接し
た後、凹状の摺動銅板を用いて溶接するようにした。[Means for solving the problem] In order to solve the above-mentioned problems, the present invention uses a convex sliding copper plate that can be inserted in the welding area, and after welding at least one pass with a small amount of effort, weld the concave sliding copper plate. Welding was done using a sliding copper plate.
[作 用]
摺動銅板の凸部が開先内に嵌入jるため、開先の空間部
が小さくなり、この空間部を先ずエレクトロガス溶接す
るので、1パスにお(プる入熱量が減少する。[Function] Since the convex part of the sliding copper plate fits into the groove, the space in the groove becomes smaller, and since this space is first electrogas welded, the amount of heat input in one pass is reduced. Decrease.
順次凸部の高さの低い摺動銅板を用いて溶接し、最後に
凹状の摺動銅板を用いて溶接することににす、多層盛溶
接することができる。Multi-layer welding can be performed by sequentially welding using sliding copper plates with low height protrusions, and finally welding using a concave sliding copper plate.
従って、1パスの入熱量を少なくすることができるので
、厚板のエレクトロガス溶接を高品質に行なうことがで
きる。Therefore, since the amount of heat input per pass can be reduced, high-quality electrogas welding of thick plates can be performed.
[実 施 例] 以下、本発明の実施例を図面を参照しつつ説明する。[Example] Embodiments of the present invention will be described below with reference to the drawings.
第1図及び第2図は本発明の溶接方法の一実施例を示す
図である。部材1を突き合せて形成した開先2内に、横
断面形状が凸状の摺動銅板3の凸部4を嵌入して開先2
の一部を該凸部4により占有し、残りの開先空間部5を
、摺動銅板3を移動させつつエレクトロガス溶接する。1 and 2 are diagrams showing an embodiment of the welding method of the present invention. The groove 2 is formed by fitting the convex portion 4 of the sliding copper plate 3 having a convex cross-sectional shape into the groove 2 formed by butting the members 1 together.
A part of the groove is occupied by the convex portion 4, and the remaining groove space 5 is electrogas welded while moving the sliding copper plate 3.
Tレフ1〜ロガス溶接する際、部材1の突き合は部衷側
には固定銅板6を当で、該固定銅板6及び摺動銅板3に
冷却水を送給する。When welding the T reflex 1 to logarithmic welding, a fixed copper plate 6 is placed on the butt joint side of the member 1, and cooling water is supplied to the fixed copper plate 6 and the sliding copper plate 3.
次に、固定銅板6及び凸状の摺動銅板3を取り外し、横
断面形状が凹状の摺動銅板3′を当て、前記一層目の溶
着金属7と摺動銅板3′との間の開先空間部5′を該摺
動銅板3′を移動させつつエレクトロガス溶接を行4丁
う。Next, the fixed copper plate 6 and the sliding copper plate 3 having a convex shape are removed, and a sliding copper plate 3' having a concave cross-sectional shape is applied to the groove between the first layer welded metal 7 and the sliding copper plate 3'. Electrogas welding is performed while moving the sliding copper plate 3' through the space 5'.
これにより、片側2パスの二層盛溶接が行なえ、1パス
の入熱量を小さくすることができる。Thereby, two-layer welding can be performed with two passes on one side, and the amount of heat input per pass can be reduced.
なお、本発明の溶接方法は上述の実施例のみに限定され
るものではなく、凸状の摺動銅板の凸部の高さの低いも
のを順次使用することにより片側又は両側を多パス溶接
することができること等、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。It should be noted that the welding method of the present invention is not limited to the above-mentioned embodiments, but can perform multi-pass welding on one or both sides by sequentially using convex sliding copper plates with lower convex parts. Of course, various modifications may be made without departing from the spirit of the present invention.
[発明の効果1
以上述べたように本発明の溶接方法によれば下記の如き
種々の優れた効果を発揮する。[Effects of the Invention 1 As described above, the welding method of the present invention exhibits various excellent effects as described below.
(T) 開先にはまり込む形状の摺動銅板を用いてエ
レクトロガス溶接するので、片側2パス以上の多層盛が
可能になる。従って、1パスの入熱量が少なくなり、部
材の熱影響部が減少し、品質が向上する。(T) Since electrogas welding is performed using a sliding copper plate shaped to fit into the groove, multilayer welding with two or more passes on one side is possible. Therefore, the amount of heat input per pass is reduced, the heat affected zone of the member is reduced, and the quality is improved.
<n) これにより、板厚40mm以上の厚板の両面
3パス以上の溶接が可能どなる。 、
入熱制限のある材料の立向継手等の溶接にも適用できる
。<n) This makes it possible to weld three or more passes on both sides of a thick plate with a thickness of 40 mm or more. , It can also be applied to welding vertical joints of materials with limited heat input.
■ 片側からのみの溶接にすることができるので、段取
り工数を低減することができる。■ Since it is possible to weld only from one side, the number of setup steps can be reduced.
第1図は本発明の溶接方法における第1層目の溶接状態
を示す図、第2図は本発明の溶接方法における第2層目
の溶接状態を示す図、第3図は従来のエレクトロガス溶
接方法の一例を示す図である。
1は部材、2は開先、3.3′は摺動銅板、4は凸部、
5.5′は開先空間部、6は固定銅板、7は溶着金属を
示す。
特 許 出 願 人
石川島播磨市工業株式会社
−〇−Fig. 1 is a diagram showing the welding state of the first layer in the welding method of the present invention, Fig. 2 is a diagram showing the welding state of the second layer in the welding method of the present invention, and Fig. 3 is a diagram showing the welding state of the second layer in the welding method of the present invention. It is a figure showing an example of a welding method. 1 is a member, 2 is a groove, 3.3' is a sliding copper plate, 4 is a convex part,
5.5' is a groove space, 6 is a fixed copper plate, and 7 is a welded metal. Patent application Hitoshikawajima-Harima City Industrial Co., Ltd. -〇-
Claims (1)
も1パス溶接した後、凹状の摺動銅板を用いて溶接する
ことを特徴とする溶接方法。1) A welding method characterized by performing at least one pass of welding using a convex sliding copper plate that can fit into the groove, and then welding using a concave sliding copper plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27847284A JPS61159274A (en) | 1984-12-28 | 1984-12-28 | Welding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27847284A JPS61159274A (en) | 1984-12-28 | 1984-12-28 | Welding method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61159274A true JPS61159274A (en) | 1986-07-18 |
Family
ID=17597804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP27847284A Pending JPS61159274A (en) | 1984-12-28 | 1984-12-28 | Welding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61159274A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100591293B1 (en) | 2005-01-15 | 2006-06-19 | 주식회사 한진중공업 | The method of inverse combined welding using electro gas welding and gas metal arc welding and copper shoe used therefor |
-
1984
- 1984-12-28 JP JP27847284A patent/JPS61159274A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100591293B1 (en) | 2005-01-15 | 2006-06-19 | 주식회사 한진중공업 | The method of inverse combined welding using electro gas welding and gas metal arc welding and copper shoe used therefor |
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