JPS59199172A - Build-up welding method - Google Patents
Build-up welding methodInfo
- Publication number
- JPS59199172A JPS59199172A JP7335183A JP7335183A JPS59199172A JP S59199172 A JPS59199172 A JP S59199172A JP 7335183 A JP7335183 A JP 7335183A JP 7335183 A JP7335183 A JP 7335183A JP S59199172 A JPS59199172 A JP S59199172A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- build
- overlay
- weld
- existing
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
Abstract
Description
【発明の詳細な説明】 実施されている肉盛溶接方法に関するものである。[Detailed description of the invention] This relates to the overlay welding method currently in use.
従来，肉盛溶接を行うべき部材表面にアーク溶接によっ
て肉盛を行う場合．第１図に示すように，部材１ａの表
面上に溶接トーチ３ａをほぼ垂直に配し，２ａ，２ｂ，
２ｃ のｎ＊に肉盛溶接ビードを置き．上記部材１−
ａの表面を肉盛溶接金属で破覆する方法が用いられてい
る。しかし従来の方法では．部材１ａの表面に対し溶接
トーチ３ａがほぼ垂直に配置されているため。Conventionally, when overlaying is performed by arc welding on the surface of a component that should be overlayed. As shown in FIG. 1, a welding torch 3a is arranged almost vertically on the surface of a member 1a, and
Place the overlay weld bead on n* of 2c. Above member 1-
A method is used in which the surface of a is broken with overlay weld metal. But with the traditional method. This is because the welding torch 3a is arranged substantially perpendicular to the surface of the member 1a.
部１’ｌａへの溶込みが深く，肉盛溶接金属への部材１
ａの成分の混入母材への希釈が多くなる。Deep penetration into part 1'la, member 1 to overlay weld metal
The amount of dilution of component a into the mixed base material increases.
本来，肉盛溶接を行う場合の溶接金属は部材１ａと全く
組成が異なる場合が多く，この組成ヲ箱．持するためで
きるだけ母材への希釈は少ない方がよい。そのために、
従来から．肉盛厚さを厚くし相対的に希釈の程度を下げ
る方法，溶接人ｒてトげる方法などが対策として用いら
れてきたが，前者は肉盛工数が多くコスト高になり，後
者は溶接ビード間の欠陥の発生や溶接能率の低下などが
あり，いずれも欠点があった。Originally, when overlay welding is performed, the weld metal often has a completely different composition from the component 1a, and this composition is different from that of the component 1a. It is better to dilute the base material as little as possible in order to maintain the durability. for that,
From the past. Countermeasures have been used such as increasing the overlay thickness to relatively reduce the degree of dilution, and using a welder to weld the material, but the former requires a lot of overlay man-hours and is expensive, while the latter requires less welding. Both methods had drawbacks, such as the occurrence of defects between beads and a decrease in welding efficiency.
本発明は，肉盛溶接における上記の従来法の欠点を改善
するため．溶接能率の低下や多層肉盛による工数増など
の欠点を克服・シ，かつ溶接るものであり、溶接棒又は
溶接ワイヤを、その中心軸の延長線が肉盛溶接される部
材表面の接線とほぼ等しくなるように傾斜させ、かつ溶
接アークの少なくとも一部分を既肉盛溶接部と相接せし
め９個々の肉盛溶接ビードの最大溶造み部が隣接する既
肉盛溶接部に内在するようにしたことを特徴とする肉盛
溶接方法を提案する。The present invention aims to improve the above-mentioned drawbacks of the conventional method in overlay welding. This method overcomes the drawbacks such as reduced welding efficiency and increased man-hours due to multi-layer overlay, and welds by connecting the welding rod or welding wire so that the extension of its central axis is tangent to the surface of the component to be overlay welded. and at least a portion of the weld arc is brought into contact with the overlay weld so that the maximum welding area of each overlay weld bead lies within the adjacent overlay weld. We propose an overlay welding method that is characterized by the following.
本発明方法を第２図に示す実施例について説明する。The method of the present invention will be described with reference to an embodiment shown in FIG.
肉盛溶接すべき部材１０表面に対して溶接ワイヤ４の中
・ｂ軸の延長線が、上記部材１１７）表面と交叉する点
の上記部材表面の接線とほぼ同じ角度に溶接トーチ３を
傾け、肉盛溶接部（２′。Tilt the welding torch 3 at approximately the same angle as the tangent to the surface of the member 117 at the point where the extension line of the middle/b axis of the welding wire 4 intersects the surface of the member 117) with respect to the surface of the member 10 to be overlay-welded; Overlay welding part (2'.
２″、 ２”’・りを構成させ、かつ溶接アークの少
なくとも一部分は既肉盛溶接部に相接するようにして肉
盛溶接を行い、浴接アークによる最大溶造み部が、隣接
する既肉盛溶接部内に内在するよ う にニ す る
。2", 2"', and overlay welding is performed so that at least a part of the welding arc is adjacent to the overlay welding part, and the maximum welding part by the bath welded arc is adjacent to the overlay welding part. It is placed so that it lies within the overlay weld.
これＫよって、肉盛溶接金属の部材１への溶込みは、最
初の肉盛溶接部を除いて非常に小さくなり、所定の肉盛
金属の組成が維持できることになる。単に溶接トーチ３
を部材１の表面に接するように傾けて溶接するたけでよ
いから、 、前にのべたような溶接欠陥の発生や溶接
能率の低下及び多層内盛にともなうＭ接工数の増加など
の欠点も生じない。Accordingly, the penetration of the build-up weld metal into the member 1 becomes extremely small except for the first build-up weld, and a predetermined composition of the build-up metal can be maintained. simply welding torch 3
Since it is only necessary to weld the material by tilting it so that it is in contact with the surface of the member 1, there are disadvantages such as the occurrence of welding defects as mentioned earlier, a decrease in welding efficiency, and an increase in the number of man-hours for M welding due to multi-layer internal welding. do not have.
この方法は、アーク溶接によるすべての肉盛浴接に適用
され、その効果を発輝するが、特に溶接ワイヤが連続的
に送給され、ガスシールド。This method is applied to all overlay welding by arc welding and has great effect, especially when the welding wire is continuously fed and gas shielded.
中で溶接を行う、いわゆるＭＩＧ 溶接法及びＭＡＧ
溶接法などに適用するとその効果カニ顕著である。又
全自動、半自動での−ずれの溶接法ｌこも適用できる。The so-called MIG welding method and MAG
The effect is most noticeable when applied to welding methods. In addition, fully automatic or semi-automatic welding methods with offsets can also be applied.
以下１本発明方法をボイラ管壁の肉盛ＶＣＩ凶月４した
場合の実施例を、第３図及び第４図１ｃついて説明する
。第３図はボイラ構造物の一部を肩４成する管壁の一部
分を立体的に示したものである。１は管群、５は管群を
連結する平板状のフィンである。第４図は前記第３図の
管群の一部の断面構造とその一方側に本発明を実施する
要領を示したもので、１は管群、２は本発明に係る実施
例による肉盛溶接部、３は溶接トーチ。An embodiment in which the method of the present invention is used to build up VCI on a boiler tube wall will be described below with reference to FIGS. 3 and 4 (1c). FIG. 3 is a three-dimensional view of a portion of a tube wall forming a shoulder 4 of a part of the boiler structure. 1 is a tube group, and 5 is a flat fin that connects the tube group. FIG. 4 shows the cross-sectional structure of a part of the tube group shown in FIG. 3 and the method of carrying out the present invention on one side thereof. Welding part, 3 is welding torch.
４は溶接ワイヤ、５は前記平板状のフィンである。第４
図にお・いて、肉盛溶接は管群の個々の管の１／４周づ
つを、フィン５の中央の肉盛溶接部２ｄを起点に、左右
に振分けて行い管壁の一方側の全面を肉盛金属にて被覆
するようにする。4 is a welding wire, and 5 is the flat fin. Fourth
In the figure, overlay welding is performed on each of the tubes in the tube group, starting from the overlay welding part 2d at the center of the fin 5, and distributing it to the left and right. be covered with overlay metal.
溶接トーチの傾きは、フィン５の中央の肉盛溶接部２ｄ
及びその左右の肉盛ビードの場合は。The inclination of the welding torch is determined by the overlay welding part 2d at the center of the fin 5.
And for the overlay beads on the left and right sides.
゛フィン５に対してほぼ垂直であるが、管の表面におけ
る肉盛ビードの場合は１図のようＶＣ管表面の接線とほ
ぼ同じ角度ＶＣなるように管表面の曲面に沿ってその傾
きを変え、肉盛溶接が順次施工される。このように管表
面の肉盛を、１ビート毎溶接トーチの傾きを変えて行う
ことは肉盛溶接作業上の繁雑さはあるが、肉盛溶接部へ
の母材の希釈が倹端に少なくなり、肉盛浴接本来の目的
に合致した所定の組成を有する高品質の肉盛金属が得ら
れる点で本発明は大きな効果がある。゛Although it is almost perpendicular to the fin 5, in the case of a build-up bead on the surface of the tube, the inclination is changed along the curved surface of the tube surface so that the angle VC is almost the same as the tangent to the VC tube surface, as shown in Figure 1. , overlay welding will be performed sequentially. Although overlaying the pipe surface by changing the inclination of the welding torch for each beat is complicated in overlay welding, it minimizes the dilution of the base metal in the overlay welded area. Therefore, the present invention has a great effect in that a high-quality overlay metal having a predetermined composition that meets the original purpose of overlay bath welding can be obtained.
第１図は従来の肉盛溶接法の概要図、第２図は本発明の
一実施例の肉盛溶接の要領図、第３図は本発明の実施例
の適用例を示すボイラなとの管壁の構造図、第４図は本
発明の実施例の適用例を示す管群への肉盛要領図である
。
１・・・管群、２．２′、２″、２″′、２ｄ・・肉盛
溶接部、３・・・溶接トーチ、４・・ワイヤ、５・ フ
ィン。Fig. 1 is a schematic diagram of a conventional overlay welding method, Fig. 2 is a schematic diagram of an overlay welding method according to an embodiment of the present invention, and Fig. 3 is a diagram showing an example of application of the embodiment of the present invention. FIG. 4 is a structural diagram of a tube wall, and is a diagram showing a procedure for overlaying a group of tubes, showing an example of application of the embodiment of the present invention. 1... Tube group, 2.2', 2'', 2''', 2d... Overlay welding section, 3... Welding torch, 4... Wire, 5. Fin.
Claims (1)
接される部材表面の接線とほぼ等しくなるように傾斜さ
せ、かつ溶接アークの少なくとも一部分を既肉盛溶接部
と相接せしめ１個々の肉盛溶接ビードの最大溶造み部が
隣接する既肉盛溶裏部に内在するようにしたことを特徴
とする肉盛溶接方法。The welding rod or welding wire is tilted so that the extension line of its central axis is approximately equal to the tangent to the surface of the member to be overlay welded, and at least a portion of the welding arc is brought into contact with the overlay welding part. An overlay welding method characterized in that the maximum welding part of the overlay welding bead is included in the backside of the adjacent already overlay welding bead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7335183A JPS59199172A (en) | 1983-04-26 | 1983-04-26 | Build-up welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7335183A JPS59199172A (en) | 1983-04-26 | 1983-04-26 | Build-up welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59199172A true JPS59199172A (en) | 1984-11-12 |
| JPH0330466B2 JPH0330466B2 (en) | 1991-04-30 |
Family
ID=13515653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7335183A Granted JPS59199172A (en) | 1983-04-26 | 1983-04-26 | Build-up welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59199172A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001289387A (en) * | 2000-04-10 | 2001-10-19 | Ing Shoji Kk | Wear-resistant bend pipe and its manufacturing method |
| JP2002139190A (en) * | 2000-11-06 | 2002-05-17 | Ing Shoji Kk | Heat-resistant and wear-resistant bend pipe and manufacturing method therefor |
| JP2007210012A (en) * | 2006-02-09 | 2007-08-23 | Mitsubishi Heavy Ind Ltd | Method and device for overlaying steel tube |
| JP2008105033A (en) * | 2006-10-23 | 2008-05-08 | Nippon Steel Hardfacing Co Ltd | Cladding-by-welding method |
| JP2017024077A (en) * | 2015-07-24 | 2017-02-02 | 大同特殊鋼株式会社 | Padding welding method of water-cooled wall panel |
| WO2022163148A1 (en) * | 2021-01-28 | 2022-08-04 | 株式会社ニコン | Processing system |
-
1983
- 1983-04-26 JP JP7335183A patent/JPS59199172A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001289387A (en) * | 2000-04-10 | 2001-10-19 | Ing Shoji Kk | Wear-resistant bend pipe and its manufacturing method |
| JP2002139190A (en) * | 2000-11-06 | 2002-05-17 | Ing Shoji Kk | Heat-resistant and wear-resistant bend pipe and manufacturing method therefor |
| JP2007210012A (en) * | 2006-02-09 | 2007-08-23 | Mitsubishi Heavy Ind Ltd | Method and device for overlaying steel tube |
| JP2008105033A (en) * | 2006-10-23 | 2008-05-08 | Nippon Steel Hardfacing Co Ltd | Cladding-by-welding method |
| JP2017024077A (en) * | 2015-07-24 | 2017-02-02 | 大同特殊鋼株式会社 | Padding welding method of water-cooled wall panel |
| WO2022163148A1 (en) * | 2021-01-28 | 2022-08-04 | 株式会社ニコン | Processing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0330466B2 (en) | 1991-04-30 |
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