JPS61154774A - Arc welding method - Google Patents
Arc welding methodInfo
- Publication number
- JPS61154774A JPS61154774A JP28034984A JP28034984A JPS61154774A JP S61154774 A JPS61154774 A JP S61154774A JP 28034984 A JP28034984 A JP 28034984A JP 28034984 A JP28034984 A JP 28034984A JP S61154774 A JPS61154774 A JP S61154774A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- tape
- arc welding
- rollers
- shaped
- 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
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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明はサブマージアーク溶接等の溶極式アーク溶接法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a melt electrode arc welding method such as submerged arc welding.
自動アーク溶接の１つとして従来からサブマージアーク
溶接が知られている。このサブマージアーク溶接は、粉
末フラックス内に電極ワイヤを送給し、外部からアーク
が見えない状態で自動溶接するようにしたものであるが
、最近では、安定したビード形状が得られ且つ電極溶融
速度が大きく能率的であることから、第８図及び第９図
に示すように、テープ状の電極を用いるものがある。Submerged arc welding has been known as one type of automatic arc welding. This submerged arc welding involves feeding an electrode wire into powder flux and performing automatic welding without the arc being visible from the outside.Recently, it has become possible to obtain a stable bead shape and to increase the electrode melting rate. There are some methods that use tape-shaped electrodes, as shown in FIGS. 8 and 9, because they are large and efficient.
即ち、モータ１によって回転せしめられる電極送給ロー
ラ２と加圧送給ローラ３とによって、テープ状電極４を
通電チップ５内に送給して通電せしめ、母材の開先巾方
向にテープ状電極４の巾方向が一致するようにし、母材
とテープ状電極４との間にアークを発生せしめ、母材及
び電極を溶融して溶接するようにしている。そして、こ
のようにテープ状電極とすることにより、アークが電極
の巾方向に動くため、分散熱源となり、ア７りが安定し
、断面形状の一定ψたビードが得られる。That is, an electrode feed roller 2 and a pressure feed roller 3 rotated by a motor 1 feed the tape-shaped electrode 4 into the energizing tip 5 and energize it, so that the tape-shaped electrode 4 is energized in the groove width direction of the base material. The width directions of the electrodes 4 are made to match, and an arc is generated between the base material and the tape-shaped electrode 4 to melt and weld the base material and the electrode. By forming a tape-shaped electrode in this way, the arc moves in the width direction of the electrode, which serves as a distributed heat source, stabilizes the agility, and provides a bead with a constant cross-sectional shape.
また、ワイヤ状電極を用いるよりもテープ状電極を用い
ると、電極溶融速度が大きくなるので、作業の能率化が
図れる。Further, when a tape-shaped electrode is used rather than a wire-shaped electrode, the electrode melting rate is higher, so that work efficiency can be improved.
上述したテープ状電極を用いた場合には、ビード形状が
安定し、電極溶融速度が大きくなる利点があるが、溶は
込み形状が浅く融合不良を生じる問題がある。When the above-mentioned tape-shaped electrode is used, there is an advantage that the bead shape is stabilized and the electrode melting rate is increased, but there is a problem that the melt penetration shape is shallow and poor fusion occurs.
また、作業をより高能率化するために電極断面積を大き
くし、大電流を用いて電極溶融速度を増すことが考えら
れるが、テープ巾を大とすると、テープが入るだけの開
先部が必要となり、結果的には必要溶接面積が増え、作
業の高能率化には直結せず、またテープ板厚を大とする
ことは電極の曲りを矯正することが困難となる問題も招
く。In addition, in order to make the work more efficient, it is possible to increase the electrode cross-sectional area and use a large current to increase the electrode melting speed, but if the tape width is increased, the groove is large enough to accommodate the tape. As a result, the required welding area increases, which does not directly lead to higher work efficiency, and increasing the thickness of the tape also causes the problem that it becomes difficult to correct the bending of the electrode.
本発明はかかる難点に鑑みさなれたもので、高品質な溶
接部が得られ且つ作業能率の高いアーク溶接法を提供す
ることを目的とする。The present invention was developed in view of these difficulties, and it is an object of the present invention to provide an arc welding method that allows high quality welded parts to be obtained and has high work efficiency.
上記問題点を解決するために本発明は、テープ状電極を
通電チップへ供給する送給ローラ間にて、テープ状電極
を断面Ｖ字状をなすように折曲せしめ、もって開先部を
変えることなく、且つテープ全体中を増すことなく、電
極の溶融面積を大とし、溶は込み量を増すようにした。In order to solve the above problems, the present invention bends the tape-shaped electrode so that it has a V-shaped cross section between the feeding rollers that supply the tape-shaped electrode to the current-carrying tip, thereby changing the bevel part. The melting area of the electrode was increased and the amount of melt penetration was increased without increasing the overall area of the tape.
以下に本発明方法の実施例を添付図面に基づいて説明す
る。Embodiments of the method of the present invention will be described below with reference to the accompanying drawings.
第１図は本発明に係るアーク溶接法を実施するための装
置の正面図、第２図は同装置の側面図、第３図は第１図
のＡ−Ａ線断面図、第４図は第１図のＢ−Ｂ線断面図、
第５図は第１図のＣ−Ｃ線断面図、第６図は第１図のＤ
−Ｄ線断面図、であり、第１図中矢印ａは装置の進行方
向を示す。Fig. 1 is a front view of a device for carrying out the arc welding method according to the present invention, Fig. 2 is a side view of the same device, Fig. 3 is a sectional view taken along line A-A in Fig. 1, and Fig. 4 is a A sectional view taken along the line B-B in Fig. 1,
Figure 5 is a sectional view taken along line C-C in Figure 1, and Figure 6 is a sectional view taken along line D in Figure 1.
-D line sectional view, and arrow a in FIG. 1 indicates the direction of movement of the device.
アーク溶接装置Ｍはテープ状電極１４をモータ１１によ
って回転せしめられる電極送給ローラ１２と加圧送給ロ
ーラ１３間にて挟圧して通電チップ１５内に送り込むよ
うにしている。In the arc welding device M, a tape-shaped electrode 14 is pinched between an electrode feed roller 12 and a pressure feed roller 13, which are rotated by a motor 11, and fed into the current-carrying tip 15.
・ここで、前記電極送給Ｏ−ラ１２は周方向に沿って中
央部が突出し、加圧送給ローラ１３は周方向に■溝が形
成され、電極送給ローラ１２及び加圧送給ローラ１３間
に平面から見てＶ字状をなす隙間Ｓ（第４図参照）が形
成される。また、電極送給０−ラ１２及び加圧送給ロー
ラ１３の周面には滑り止め用のローレット目が刻設され
ている。・Here, the center portion of the electrode feeding roller 12 protrudes along the circumferential direction, and the pressure feeding roller 13 has a groove formed in the circumferential direction, so that a groove is formed between the electrode feeding roller 12 and the pressure feeding roller 13. A V-shaped gap S (see FIG. 4) is formed when viewed from above. Further, the electrode feeding roller 12 and the pressure feeding roller 13 are provided with knurls on their circumferential surfaces to prevent slipping.
一方、前記通電チップ１５は第６図に示す如くアングル
状をなす半休１５ａ、１５ｂを重ねてなり、これら半体
１５ａ、１５ｂ間に前記と同様に平面から見てＶ字状の
通孔１６が形成される。On the other hand, as shown in FIG. 6, the current-carrying chip 15 is made up of angular half-holes 15a and 15b stacked one on top of the other, and a V-shaped through hole 16 when viewed from above is formed between these half-holes 15a and 15b. It is formed.
即ち、第３図に示す如く当初テープ状をした電極１４は
電極送給Ｏ−ラ１２及び加圧送給ローラ１３の隙ｌ１ｌ
Ｓを通るときに、第４図に示す如くアーク溶接装置の進
行方向前方に頂部が向く平面７字状に折曲され、第５図
に示す如くそのままＶ字状を維持して通電チップ１５の
通孔１６内に入り、通孔１６下端より下方へ突出する。In other words, as shown in FIG.
When passing through S, the current-carrying tip 15 is bent into a 7-shape plane with the top facing forward in the direction of movement of the arc welding device as shown in FIG. 4, and maintains a V-shape as shown in FIG. It enters the through hole 16 and projects downward from the lower end of the through hole 16.
そして母材と電極１４下端との間に発生するアークの熱
で電極１４及び母材の開先部が溶融し、電極１４が母材
中に溶は込む。また、この溶融した量だけ送給０−ラｉ
２．１３にて新たな電極が供給される。Then, the electrode 14 and the groove portion of the base material are melted by the heat of the arc generated between the base material and the lower end of the electrode 14, and the electrode 14 is melted into the base material. Also, feed 0-ray i by this melted amount.
New electrodes are supplied at 2.13.
以上の実施例はサブマージアーク溶接に限らず、ガスシ
ールドメタルアーク溶接等、各種の溶極式自動アーク溶
接に適用できる。The embodiments described above are applicable not only to submerged arc welding but also to various types of automatic arc welding such as gas-shielded metal arc welding.
（発明の効果）
以下に本発明の効果を第７図に基づいて説明する。ここ
で第７図は同じ開先部Ｗに従来のテープ状電極４と本発
明によるＶ字状電極１４を用いて溶接する場合を比較し
たものであり、図から明らかな如く、同一の厚さの電極
とした場合にはＶ字状電極１４の方がテープ状電極４よ
りも断面積が大である。(Effects of the Invention) The effects of the present invention will be explained below based on FIG. 7. Here, FIG. 7 shows a comparison between welding using the conventional tape-shaped electrode 4 and the V-shaped electrode 14 according to the present invention on the same groove W, and as is clear from the figure, the same thickness is used. In this case, the V-shaped electrode 14 has a larger cross-sectional area than the tape-shaped electrode 4.
その結果、一定の開先部Ｗに対し、本発明方法によれば
、電極断面積を大きくすることができ、多量の電極を溶
融させることができる。換言すれば電極溶融速度を増す
効果を発揮し、作業の高能率化につながる。As a result, for a given groove W, according to the method of the present invention, the electrode cross-sectional area can be increased, and a large amount of electrode can be melted. In other words, it has the effect of increasing the electrode melting speed, leading to higher work efficiency.
また、アークの移動方向について考察すれば、従来のテ
ープ状電極４にあっては、テープ巾方向にアークが移動
すを繰り返すため、ビード形状を安定させることができ
る反面、熱分散による溶は込み不足が生じるが、本発明
方法によれば、■字の頂点１４ａを起点に、テープ巾方
向にアークが移動Ｃを繰り返すため、Ｖ字状電極１４の
頂点部１４ａはたえず周期的にアークが集中することと
なり、頂点部１４ａの直下では充分な溶は込み量を確保
できる。Furthermore, considering the direction of movement of the arc, in the conventional tape-shaped electrode 4, the arc repeatedly moves in the width direction of the tape, making it possible to stabilize the bead shape. However, according to the method of the present invention, since the arc repeats the movement C in the tape width direction starting from the apex 14a of the V-shaped electrode 14, the arc is constantly and periodically concentrated on the apex 14a of the V-shaped electrode 14. Therefore, a sufficient amount of weld penetration can be ensured directly below the apex portion 14a.
更に本発明方法によれば、アークの移動は二方向のアー
ク移動Ｃを組み合せたものとなるので、母材上の溶融プ
ールを撹拌する作用があり、開先壁面への充分なぬれと
溶は込み融合をもたらす作用がある等多くの効果を奏し
、高品質な溶接部を得ることができる。Furthermore, according to the method of the present invention, arc movement is a combination of arc movement C in two directions, which has the effect of stirring the molten pool on the base material, ensuring sufficient wetting and melting of the groove wall surface. It has many effects, such as the action of bringing about fusion, and can produce high-quality welds.
第１図は本発明方法を実施するためのアーク溶接装置の
正面図、第２図は同アーク溶接装置の側面図、第３図は
第１図のＡ−ＡＬａ断面図、第４図は第１図のＢ−Ｂ線
断面図、第５図は第１図のＣ−Ｃ線断面図、第６図は第
１図のＤ−ＤＩ！断面図、第７図は本発明方法と従来法
とを比較した図、第８図は従来のアーク溶接装置の正面
図、第９図は従来のアーク溶接装置の側面図である。
１２・・・電極送給ローラ、１３・・・加圧送給ローラ
、１４・・・電極、１５・・・通電チップ。
出願人代理人 猪 股 清
る８目
筋９目Fig. 1 is a front view of an arc welding device for implementing the method of the present invention, Fig. 2 is a side view of the same arc welding device, Fig. 3 is a sectional view taken along A-ALa in Fig. 1, and Fig. 4 is a cross-sectional view of the arc welding device. 1, FIG. 5 is a sectional view taken along line CC in FIG. 1, and FIG. 6 is a sectional view taken along line D-DI in FIG. 1. 7 is a diagram comparing the method of the present invention and a conventional method, FIG. 8 is a front view of a conventional arc welding device, and FIG. 9 is a side view of a conventional arc welding device. 12... Electrode feeding roller, 13... Pressure feeding roller, 14... Electrode, 15... Current-carrying chip. Applicant's representative Inomata Kiyoshiru 8 eyes 9 eyes
Claims (1)
母材と金属電極を溶融せしめ、電極を母材に溶し込むよ
うにしたアーク溶接において、前記金属電極を送給ロー
ラ間にて断面Ｖ字状に折曲して通電チップ内に送り込む
ようにしたことを特徴とするアーク溶接法。In arc welding, an arc is generated between a base material and a metal electrode, the arc heat melts the base material and the metal electrode, and the electrode is melted into the base material. An arc welding method characterized by bending the wire into a V-shaped cross section and feeding it into a current-carrying tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28034984A JPS61154774A (en) | 1984-12-27 | 1984-12-27 | Arc welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28034984A JPS61154774A (en) | 1984-12-27 | 1984-12-27 | Arc welding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61154774A true JPS61154774A (en) | 1986-07-14 |
Family
ID=17623765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28034984A Pending JPS61154774A (en) | 1984-12-27 | 1984-12-27 | Arc welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61154774A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809138A (en) * | 2021-01-26 | 2021-05-18 | 西南交通大学 | Large and thick plate welding method and system based on double strip-shaped welding wires |
-
1984
- 1984-12-27 JP JP28034984A patent/JPS61154774A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112809138A (en) * | 2021-01-26 | 2021-05-18 | 西南交通大学 | Large and thick plate welding method and system based on double strip-shaped welding wires |
| CN112809138B (en) * | 2021-01-26 | 2022-05-06 | 西南交通大学 | Large and thick plate welding method and system based on double strip-shaped welding wires |
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