JP2012055917A - Build-up welding device and method - Google Patents

Build-up welding device and method Download PDF

Info

Publication number
JP2012055917A
JP2012055917A JP2010199904A JP2010199904A JP2012055917A JP 2012055917 A JP2012055917 A JP 2012055917A JP 2010199904 A JP2010199904 A JP 2010199904A JP 2010199904 A JP2010199904 A JP 2010199904A JP 2012055917 A JP2012055917 A JP 2012055917A
Authority
JP
Japan
Prior art keywords
welding
guide member
torch
arc
traversing
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
Application number
JP2010199904A
Other languages
Japanese (ja)
Inventor
Yoshio Moto
吉夫 基
Kazuhiro Toyama
一廣 遠山
Mitsuyoshi Nakatani
光良 中谷
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.)
Hitachi Zosen Corp
Original Assignee
Hitachi Zosen 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 Hitachi Zosen Corp filed Critical Hitachi Zosen Corp
Priority to JP2010199904A priority Critical patent/JP2012055917A/en
Publication of JP2012055917A publication Critical patent/JP2012055917A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Butt Welding And Welding Of Specific Article (AREA)
  • Arc Welding Control (AREA)

Abstract

PROBLEM TO BE SOLVED: To automate positioning of a welding torch; to properly control an arc length; to automate high-quality build-up welding; and to achieve welding with a dilution rate as close to zero as possible.SOLUTION: Traversing trucks 4a, 4b, which move along traversing rails 2a, 2b fixed on a pipe p, are connected to each other by a traveling guide member 5. Welding wires and electric power are supplied from a welding machine to a welding torch 7e of a torch head 7 fixed to a welding traveling truck 6 guided and moved by the traveling guide member 5. A vertical member 7b is fixed to the torch head 7 to be movable along a traversing guide member 7a disposed in the same direction as the traversing rails 2a, 2b. A weaving device 7d of the welding torch 7e is fixed to the vertical member 7b to be movable along an arc moving device 7c fixed movably in the same direction as the traversing guide member 7a. The supply of the welding wires and electric power to the welding torch 7e is performed by controlling the repeating cycle of an arc stage and a short-circuit stage. Only argon gas is used as shielding gas.

Description

本発明は、例えばごみ焼却炉におけるボイラ水管のような、並列に配置された多数の配管の表面に、自動で肉盛溶接する装置、及びこの肉盛溶接装置を用いた肉盛溶接方法に関するものである。   The present invention relates to a device for automatically overlay welding on the surface of a large number of pipes arranged in parallel, such as a boiler water pipe in a waste incinerator, and an overlay welding method using this overlay welding device. It is.

例えばごみ焼却炉におけるボイラ水管の高温部位には、腐食減肉や、高温酸化による肉減りが発生する。そのため、これら腐食減肉箇所及び肉減り箇所（ボイラ水管１本当たり数十箇所）は、表面側から肉盛溶接による補修が定期的に行なわれている。   For example, in a high-temperature portion of a boiler water pipe in a garbage incinerator, corrosion thinning and thinning due to high-temperature oxidation occur. Therefore, these corrosion thinning points and thinning points (several tens of points per boiler water pipe) are periodically repaired by overlay welding from the surface side.

このような肉盛溶接に際し、例えば縦ガイド部材に沿って上下する昇降台車に取付けられて水平方向に進退する水平ロッド部材の取付け金具に、進退機構及び傾動機構を介して進退及び傾動可能に溶接トーチを設置した装置が知られている（特許文献１）。特許文献１には、この装置を使用すれば、短時間で、均質な肉盛溶接層を形成することができると記載されている。   For such build-up welding, for example, welding to a mounting rod of a horizontal rod member that is attached to an elevating carriage that moves up and down along the vertical guide member and advances and retracts in a horizontal direction is possible to advance and retract and tilt through an advance and retract mechanism and tilt mechanism. An apparatus in which a torch is installed is known (Patent Document 1). Patent Document 1 describes that if this apparatus is used, a uniform build-up weld layer can be formed in a short time.

しかしながら、アーク溶接時にアーク長が変動すると、各溶接部位における溶接条件が変わるので、特許文献１で提案された装置の場合、肉盛溶接の均質性を維持するために、溶接トーチを溶接開始点に手動で位置決めする必要があり、溶接中は作業者による監視が必要である。   However, if the arc length fluctuates during arc welding, the welding conditions at each welding site change. Therefore, in the case of the apparatus proposed in Patent Document 1, in order to maintain the homogeneity of overlay welding, the welding torch is welded to the welding start point. Must be manually positioned and must be monitored by the operator during welding.

この位置決めは、肉盛溶接毎に必要であるため、多数本の配管を肉盛溶接する場合、非常に煩雑な作業となる。また、数値制御等が必要となり、全自動による肉盛溶接ができなかった。さらに、手動による位置決めを行う場合、溶接ビードの重なり代が、作業者毎に異なるので、肉盛溶接部にばらつきが発生する。   Since this positioning is necessary for each build-up welding, when many pipes are build-up welded, it becomes a very complicated operation. In addition, numerical control and the like are required, and full-automatic overlay welding cannot be performed. In addition, when manual positioning is performed, the welding bead overlap varies depending on the operator, so that the welded weld varies.

特開２００７−２９０００５号公報JP 2007-290005 A

本発明が解決しようとする問題点は、特許文献１で提案された肉盛溶接装置の場合、肉盛溶接毎に溶接トーチを溶接開始点に手動で位置決めする必要があるので、非常に煩雑な作業となり、また、全自動による肉盛溶接ができず、肉盛溶接部にばらつきが発生するという点である。   The problem to be solved by the present invention is that, in the case of the overlay welding apparatus proposed in Patent Document 1, it is necessary to manually position the welding torch at the welding start point for each overlay welding, which is very complicated. This is a work, and cannot be fully automatic overlay welding, resulting in variations in the overlay welds.

本発明の肉盛溶接装置は、
溶接開始点への溶接トーチの位置決めを、肉盛溶接毎に手動でする必要がないようにするために、
並列配置された配管の腐食減肉箇所及び肉減り箇所の表面を肉盛溶接する装置であって、
前記配管上に取付けられる対をなす２本の横行レールと、
これら対をなす２本の横行レールに案内されて移動する２台の横行台車と、
これら２台の横行台車を連結する走行ガイド部材と、
この走行ガイド部材に案内されて移動する溶接走行台車と、
この溶接走行台車に取付けられたトーチヘッドと、
このトーチヘッドの構成要素である溶接トーチに溶接ワイヤ及び電力を供給する溶接機と、
を有し、
前記トーチヘッドは、
前記横行レールと同じ方向に配置された横行ガイド部材と、
この横行ガイド部材に沿う移動可能に取付けられた上下部材と、
この上下部材に、前記横行ガイド部材と同方向の移動可能に取付けられた円弧移動装置と、
この円弧移動装置に沿う移動可能に取付けられた、前記溶接トーチを備えたウィービング装置とで構成され、
かつ、前記溶接トーチへの溶接ワイヤ及び電力の供給を、溶接電源によりアーク段階と短絡段階の繰り返し周期を制御して行うようにしたことを最も主要な特徴としている。 The overlay welding apparatus of the present invention is
In order to avoid having to manually position the welding torch at the welding start point for each overlay welding,
It is a device for overlay welding the surface of the corrosion thinning part and the thinning part of the pipes arranged in parallel,
Two traverse rails forming a pair mounted on the pipe;
Two traversing carts guided and moved by these two traversing rails,
A travel guide member connecting these two traversing carts;
A welding traveling carriage guided and moved by the traveling guide member;
A torch head attached to the welding carriage,
A welding machine for supplying a welding wire and electric power to a welding torch which is a component of the torch head;
Have
The torch head is
A traverse guide member arranged in the same direction as the traverse rail;
An upper and lower member movably attached along the traverse guide member;
An arc moving device attached to the upper and lower members so as to be movable in the same direction as the traverse guide member;
A weaving device provided with the welding torch, which is movably attached along the arc moving device,
In addition, the main feature is that the welding wire and electric power are supplied to the welding torch by controlling the repetition period of the arc stage and the short-circuit stage with a welding power source.

本発明の肉盛溶接装置は、例えばＭＩＧまたはＭＡＧ溶接法等においてアーク段階と短絡段階の繰り返し周期を制御して肉盛溶接するので、肉盛溶接時のアーク長を適正に制御できる。このため、溶接中のスパッタの発生が非常に少なくなって、肉盛溶接のビード形状が安定する。また、低入熱での施工が可能となるので、母材への溶け込みが少なくなる。   Since the overlay welding apparatus of the present invention performs overlay welding by controlling the repetition period of the arc stage and the short-circuit stage in, for example, the MIG or MAG welding method, the arc length during overlay welding can be appropriately controlled. For this reason, generation | occurrence | production of the spatter | spatter during welding becomes very small, and the bead shape of overlay welding is stabilized. Moreover, since construction with low heat input becomes possible, the amount of melting into the base material is reduced.

従来、溶接ワイヤにステンレスやニッケル基合金を用いる場合、施工性が悪いためにシールドガスとしてのアルゴンに二酸化炭素または酸素を混合したガスを用いる必要があったが、本発明の肉盛溶接装置において、溶接ワイヤにステンレスやニッケル基合金を用いて配管の表面を肉盛溶接する場合にも、シールドガスとしてアルゴンガスのみを使用して、配管への肉盛溶接が可能となる。これが本発明の肉盛溶接方法である。   Conventionally, when stainless steel or a nickel-based alloy is used for the welding wire, it is necessary to use a gas in which carbon dioxide or oxygen is mixed with argon as a shielding gas because of poor workability. In the overlay welding apparatus of the present invention, Even when the surface of the pipe is overlay welded using stainless steel or a nickel-based alloy for the welding wire, overlay welding to the pipe is possible using only argon gas as the shielding gas. This is the overlay welding method of the present invention.

本発明では、アーク段階と短絡段階の繰り返し周期を制御して肉盛溶接するので、肉盛溶接時のアーク長を適正に制御することができる。従って、溶接トーチの溶接開始点への位置決めは配管１本当たり１回で良くなり、全自動で高品質な肉盛溶接が可能になる。また、母材への溶け込みが少なくなるので、希釈率が限りなく０に近い溶接が可能となり、高温割れの発生を防止することができる。   In the present invention, since the overlay welding is performed by controlling the repetition cycle of the arc stage and the short-circuit stage, it is possible to appropriately control the arc length during the overlay welding. Accordingly, the positioning of the welding torch to the welding start point can be performed only once per pipe, and high-quality overlay welding can be performed fully automatically. In addition, since the penetration into the base material is reduced, welding with a dilution rate of almost zero is possible, and the occurrence of hot cracks can be prevented.

本発明の肉盛溶接装置の一例を示す斜視図である。It is a perspective view which shows an example of the overlay welding apparatus of this invention. 図１の正面図である。It is a front view of FIG. 図２の拡大下面図である。FIG. 3 is an enlarged bottom view of FIG. 2. 図３を右側面から見た図である。It is the figure which looked at FIG. 3 from the right side surface. 図１のトーチヘッド部の拡大斜視図である。It is an expansion perspective view of the torch head part of FIG. 本発明の肉盛溶接装置におけるウィービング装置の円弧移動装置に沿う移動機構及び本発明による肉盛溶接の順序の説明図である。It is explanatory drawing of the order of the welding mechanism by this invention, and the moving mechanism in alignment with the circular arc moving apparatus of the weaving apparatus in the overlay welding apparatus of this invention.

本発明では、溶接開始点への溶接トーチの位置決めを、肉盛溶接毎に手動でする必要がないようにするという目的を、アーク段階と短絡段階の繰り返し周期を制御して肉盛溶接することで実現した。   In the present invention, overlay welding is performed by controlling the repetition period of the arc stage and the short-circuit stage for the purpose of eliminating the need to manually position the welding torch at the welding start point for each overlay welding. Realized.

以下、図１〜図６を用いて本発明を詳細に説明する。
図１〜図６は本発明の肉盛溶接装置の一例を示した図である。 Hereinafter, the present invention will be described in detail with reference to FIGS.
1-6 is a figure which showed an example of the overlay welding apparatus of this invention.

図１〜図６において、１は多数の配管ｐを並列に配置した例えばごみ焼却炉におけるボイラ水管の、腐食減肉及び肉減りした箇所の表面を肉盛溶接する本発明装置であり、以下に説明するような構成となっている。   In FIG. 1 to FIG. 6, reference numeral 1 denotes an apparatus according to the present invention that builds up the surface of a portion of a boiler water pipe in which a large number of pipes p are arranged in parallel, for example, corrosion thinning and thinning of a boiler water pipe. The configuration is as described.

２ａ、２ｂは前記配管ｐ上に、支持金具３によって所定の間隔を存して取付けられる対をなす２本の横行レールである。これら対をなす２本の横行レール２ａ、２ｂ上には、各横行レール２ａ、２ｂに案内されて移動する横行台車４ａ、４ｂがそれぞれ設置されている。   Reference numerals 2a and 2b denote two transverse rails which form a pair which is attached to the pipe p by a support fitting 3 with a predetermined interval. On the two traversing rails 2a and 2b forming a pair, traversing carts 4a and 4b that are guided and moved by the traversing rails 2a and 2b are respectively installed.

なお、横行台車４ａ、４ｂは、横行レール２ａ、２ｂに案内されて移動できるものであれば、特にその構成は問わない。例えば横行レール２ａ、２ｂの両側から例えばローラベアリングで挟持して台車本体４ａａ、４ｂａを移動自在としておく。この台車本体４ａａ、４ｂａに、横行レール２ａ、２ｂの両端部に巻き回したチェーン４ａｂ、４ｂｂの両端を固定し、このチェーン４ａｂ、４ｂｂに噛み合うスプロケット４ａｃ、４ｂｃをモータ４ａｄ、４ｂｄで正逆回転させればよい。   The traversing carts 4a and 4b are not particularly limited as long as they are guided by the traversing rails 2a and 2b and can move. For example, the carriage main bodies 4aa and 4ba are made movable by being sandwiched by roller bearings, for example, from both sides of the transverse rails 2a and 2b. Both ends of the chains 4ab and 4bb wound around both ends of the transverse rails 2a and 2b are fixed to the bogie main bodies 4aa and 4ba, and the sprockets 4ac and 4bc engaged with the chains 4ab and 4bb are rotated forward and backward by the motors 4ad and 4bd. You can do it.

５は前記２台の横行台車４ａ、４ｂを連結する走行ガイド部材であり、この走行ガイド部材５に沿って溶接走行台車６が移動するようになされている。この溶接走行台車６も、走行ガイド部材５に案内されて移動できるものであれば、特にその構成は問わない。例えば前記横行台車４ａ、４ｂと同様、走行ガイド部材５の両側からローラベアリングで挟持して移動自在とした台車本体６ａに、走行ガイド部材５の両端部に巻き回したチェーン６ｂの両端を固定し、このチェーン６ｂに噛み合うスプロケット６ｃをモータ６ｄで正逆回転させればよい。   Reference numeral 5 denotes a travel guide member that connects the two traversing carts 4 a and 4 b, and the welding travel cart 6 moves along the travel guide member 5. The welding traveling carriage 6 is not particularly limited as long as it can move while being guided by the traveling guide member 5. For example, like the traversing carts 4a and 4b, both ends of the chain 6b wound around both ends of the travel guide member 5 are fixed to a cart body 6a which is movable by being sandwiched by roller bearings from both sides of the travel guide member 5. The sprocket 6c meshing with the chain 6b may be rotated forward and backward by the motor 6d.

７は前記溶接走行台車６に取付けられたトーチヘッドである。このトーチヘッド７は、前記横行レール２ａ、２ｂと同じ方向に配置された横行ガイド部材７ａに沿う移動可能に上下部材７ｂが取付けられ、この上下部材７ｂに前記横行ガイド部材７ａと同方向の移動可能に円弧移動装置７ｃを取付けた構成である。そして、この円弧移動装置７ｃに沿う移動が可能なように、溶接トーチ７ｅを備えたウィービング装置７ｄを取付けている。   Reference numeral 7 denotes a torch head attached to the welding traveling carriage 6. The torch head 7 has an upper and lower member 7b attached to the upper and lower member 7b in the same direction as the traverse guide member 7a. The arc moving device 7c is attached as possible. And the weaving device 7d provided with the welding torch 7e is attached so that the movement along this circular arc moving device 7c is possible.

前記上下部材７ｂの横行ガイド部材７ａに沿う移動機構や、前記円弧移動装置７ｃの前記横行ガイド部材７ａと同方向の移動機構も、前記の移動ができるものであれば特にその構成は問わない。例えば、モータ７ｂａ又は７ｃａによってねじ軸を正逆回転し、このねじ軸に螺合するボールねじに、前記上下部材７ｂ又は前記円弧移動装置７ｃを一体的に取付ければよい。   The moving mechanism along the transverse guide member 7a of the upper and lower members 7b and the moving mechanism in the same direction as the transverse guide member 7a of the arc moving device 7c are not particularly limited as long as they can move. For example, the upper and lower members 7b or the arc moving device 7c may be integrally attached to a ball screw that is rotated forward and backward by a motor 7ba or 7ca and is screwed to the screw shaft.

また、ウィービング装置７ｄの円弧移動装置７ｃに沿う移動機構も、特にその構成は問わない。例えば、モータ７ｄａによってスプロケット７ｄｂを正逆回転し、このスプロケット７ｄｂから、チェーン７ｄｃ、スプロケット７ｄｄ、回転軸７ｄｅを介して、円弧状ラック７ｄｇに噛み合うピニオン７ｄｆを正逆回転させればよい（図６参照）。   Further, the moving mechanism along the arc moving device 7c of the weaving device 7d is not particularly limited. For example, the sprocket 7db is rotated in the forward and reverse directions by the motor 7da, and the pinion 7df engaged with the arc-shaped rack 7dg is forwardly and reversely rotated from the sprocket 7db via the chain 7dc, the sprocket 7dd, and the rotating shaft 7de (FIG. 6). reference).

なお、８は溶接機（図示省略）から前記トーチヘッド７の構成要素である溶接トーチ７ｅに供給する溶接ワイヤ及び電力を案内する配管、５ａは走行ガイド部材５のたわみを防止するために設置されたテンションロッドである。   Reference numeral 8 denotes a welding wire supplied from a welding machine (not shown) to the welding torch 7e, which is a component of the torch head 7, and a pipe for guiding electric power, and 5a is installed to prevent the travel guide member 5 from being bent. Tension rod.

前記の各移動機構は、制御装置（図示省略）からの信号により、配管ｐの腐食減肉箇所及び肉減り箇所に位置するように制御され、所要の肉盛溶接を行うようになっている。その際、本発明では、前記溶接トーチ７ｅへの溶接ワイヤ及び電力の供給を、アーク段階と短絡段階の繰り返し周期を制御するようにした溶接電源（図示省略）により行っている。   Each of the moving mechanisms is controlled so as to be positioned at a corrosion thinning portion and a thinning portion of the pipe p by a signal from a control device (not shown), and performs the necessary overlay welding. At this time, in the present invention, the welding wire and power are supplied to the welding torch 7e by a welding power source (not shown) that controls the repetition cycle of the arc phase and the short-circuit phase.

本発明では、アーク段階と短絡段階の繰り返し周期を制御して肉盛溶接を行うので、従来のように溶接中にアーク長が変わって溶接条件が変動することがなく、アーク長を適正に制御することができる。従って、溶接トーチ７ｅの溶接開始点への位置決めは配管１本当たり１回で良くなり、肉盛溶接を全自動で行うことができる。また、希釈率が限りなく０に近い溶接が可能となる。   In the present invention, overlay welding is performed by controlling the repetition cycle of the arc phase and the short-circuit phase, so that the arc length is not changed during welding and the welding conditions do not fluctuate during welding as in the conventional case, and the arc length is controlled appropriately. can do. Therefore, positioning of the welding torch 7e to the welding start point is sufficient once per pipe, and overlay welding can be performed fully automatically. In addition, welding with a dilution ratio that is close to 0 becomes possible.

アーク段階と短絡段階の繰り返し周期において、アーク段階はアーク長がスパッタの発生を低減し得る適正な長さとなる条件（溶接電圧等）を維持すべく制御される。また、短絡段階では電流を低くし溶接ワイヤを徐々に引き上げることでスパッタ量を減少させている。さらに、短絡段階の期間（時間）を長くすることで入熱量を抑え、希釈率を限りなく０に近くなるように制御している。   In the repetition cycle of the arc phase and the short-circuit phase, the arc phase is controlled so as to maintain a condition (welding voltage or the like) where the arc length is an appropriate length that can reduce the occurrence of spatter. Also, at the short-circuit stage, the amount of spatter is reduced by lowering the current and gradually raising the welding wire. Furthermore, the amount of heat input is suppressed by increasing the period (time) of the short circuit stage, and the dilution rate is controlled to be as close to 0 as possible.

上記構成の本発明の肉盛溶接装置１は、配管ｐの縦方向（図１に白抜き矢印で示す紙面上下方向）に往復しながら配管ｐの表面に肉盛溶接を施す。そして、１本の配管ｐの溶接が終了すると隣の配管ｐに移動し、同様の溶接を繰返し行う（図１の黒塗り矢印参照）。   The build-up welding apparatus 1 of the present invention having the above-described configuration performs build-up welding on the surface of the pipe p while reciprocating in the vertical direction of the pipe p (the vertical direction of the paper indicated by the white arrow in FIG. 1). Then, when the welding of one pipe p is completed, it moves to the adjacent pipe p and repeats the same welding (see the black arrow in FIG. 1).

肉盛溶接は、例えば図６にイ、ロ、ハ、ニで示す順に、左右交互に行うが、アーク段階と短絡段階とを周期的に繰り返すことで、低希釈で肉盛溶接が行えることから、溶接材料との相性を考慮する必要がなく、また母材への熱影響が少ないため、溶接順序は上記に限らず適用可能である。   Overlay welding is performed, for example, alternately in the order indicated by a, b, c, and d in FIG. 6, but overlay welding can be performed at low dilution by periodically repeating the arc phase and the short-circuit phase. It is not necessary to consider the compatibility with the welding material, and since the thermal influence on the base material is small, the welding sequence is not limited to the above and can be applied.

ところで、溶接ワイヤにステンレス（例えばＳＵＳ３０９、３１０ステンレス鋼）やニッケル基合金を用いた配管ｐへの肉盛溶接において、縦向き下進による溶接は、アークが不安定になりスパッタ量が増加する等の問題により適さないことから、従来は、シールドガスであるアルゴンガスに、アークを安定化させスパッタ量を減少させる等の目的で二酸化炭素ガスまたは酸素ガスを添加する必要があった。   By the way, in the overlay welding to the pipe p using stainless steel (for example, SUS309, 310 stainless steel) or a nickel-based alloy for the welding wire, welding by vertical downward movement makes the arc unstable and the amount of spatter increases. Therefore, conventionally, it has been necessary to add carbon dioxide gas or oxygen gas to the argon gas, which is a shielding gas, for the purpose of stabilizing the arc and reducing the amount of sputtering.

しかしながら、上記構成の本発明の肉盛溶接装置１を使用する場合は、溶接ワイヤにステンレスやニッケル基合金を用いた場合であっても、アーク段階と短絡段階の繰り返し周期を制御することで、アークを安定化させスパッタ量を減少させることができるため、アルゴンガスのみをシールドガスとした肉盛溶接が可能になる。   However, when using the overlay welding apparatus 1 of the present invention having the above-described configuration, even when stainless steel or a nickel-based alloy is used for the welding wire, by controlling the repetition cycle of the arc stage and the short-circuit stage, Since the arc can be stabilized and the amount of spatter can be reduced, overlay welding using only argon gas as a shielding gas is possible.

このようにすれば、従来溶接性の悪かった溶接ワイヤにステンレスやニッケル基合金を用いた配管ｐへの肉盛溶接がアルゴンガスのみで可能となり、コスト削減につながる。   If it does in this way, overlay welding to the piping p which used stainless steel or nickel base alloy for the welding wire with the bad weldability conventionally will be attained only by argon gas, and it will lead to cost reduction.

本発明は、上記の例に限るものではなく、各請求項に記載の技術的思想の範疇において、適宜実施の形態を変更しても良いことは言うまでもない。   The present invention is not limited to the above examples, and it goes without saying that the embodiments may be appropriately changed within the scope of the technical idea described in each claim.

１ 肉盛溶接装置
２ａ、２ｂ 横行レール
４ａ、４ｂ 横行台車
５ 走行ガイド部材
６ 溶接走行台車
７ トーチヘッド
７ａ 横行ガイド部材
７ｂ 上下部材
７ｃ 円弧移動装置
７ｄ ウィービング装置
７ｅ 溶接トーチ DESCRIPTION OF SYMBOLS 1 Overlay welding apparatus 2a, 2b Traverse rail 4a, 4b Traverse cart 5 Traveling guide member 6 Welding travel cart 7 Torch head 7a Traverse guide member 7b Vertical member 7c Arc moving device 7d Weaving device 7e Welding torch

Claims (2)

並列配置された配管の腐食減肉箇所及び肉減り箇所の表面を肉盛溶接する装置であって、
前記配管上に取付けられる対をなす２本の横行レールと、
これら対をなす２本の横行レールに案内されて移動する２台の横行台車と、
これら２台の横行台車を連結する走行ガイド部材と、
この走行ガイド部材に案内されて移動する溶接走行台車と、
この溶接走行台車に取付けられたトーチヘッドと、
このトーチヘッドの構成要素である溶接トーチに溶接ワイヤ及び電力を供給する溶接機と、
を有し、
前記トーチヘッドは、
前記横行レールと同じ方向に配置された横行ガイド部材と、
この横行ガイド部材に沿う移動可能に取付けられた上下部材と、
この上下部材に、前記横行ガイド部材と同方向の移動可能に取付けられた円弧移動装置と、
この円弧移動装置に沿う移動可能に取付けられた、前記溶接トーチを備えたウィービング装置とで構成され、
かつ、前記溶接トーチへの溶接ワイヤ及び電力の供給を、溶接電源によりアーク段階と短絡段階の繰り返し周期を制御して行うことを特徴とする肉盛溶接装置。 It is a device for overlay welding the surface of the corrosion thinning part and the thinning part of the pipes arranged in parallel,
Two traverse rails forming a pair mounted on the pipe;
Two traversing carts guided and moved by these two traversing rails,
A travel guide member connecting these two traversing carts;
A welding traveling carriage guided and moved by the traveling guide member;
A torch head attached to the welding carriage,
A welding machine for supplying a welding wire and electric power to a welding torch which is a component of the torch head;
Have
The torch head is
A traverse guide member arranged in the same direction as the traverse rail;
An upper and lower member movably attached along the traverse guide member;
An arc moving device attached to the upper and lower members so as to be movable in the same direction as the traverse guide member;
A weaving device provided with the welding torch, which is movably attached along the arc moving device,
And the welding welding apparatus characterized by supplying a welding wire and electric power to the said welding torch by controlling the repetition period of an arc stage and a short circuit stage with a welding power supply. 並列配置された配管の腐食減肉箇所及び肉減り箇所の表面を肉盛溶接する方法であって、
前記配管上に取付けられる対をなす２本の横行レールと、
これら対をなす２本の横行レールに沿って移動する２台の横行台車と、
これら２台の横行台車を連結する走行ガイド部材と、
この走行ガイド部材に案内されて移動する溶接走行台車と、
この溶接走行台車に取付けられたトーチヘッドと、
このトーチヘッドの構成要素である溶接トーチに溶接ワイヤ及び電力を供給する溶接機と、
を有し、
前記トーチヘッドは、
前記横行レールと同じ方向に配置された横行ガイド部材と、
この横行ガイド部材に沿う移動可能に取付けられた上下部材と、
この上下部材に、前記横行ガイド部材と同方向の移動可能に取付けられた円弧移動装置と、
この円弧移動装置に沿う移動可能に取付けられた、溶接トーチを備えたウィービング装置とで構成され、
かつ、前記溶接トーチへのステンレスまたはニッケル基合金からなる溶接ワイヤ及び電力の供給を、溶接電源によりアーク段階と短絡段階の繰り返し周期を制御して行う肉盛溶接装置を使用し、
アーク溶接時に使用するシールドガスとしてアルゴンガスのみを使用することを特徴とする肉盛溶接方法。 It is a method of overlay welding the surface of the corrosion thinning part and the thinning part of the pipes arranged in parallel,
Two traverse rails forming a pair mounted on the pipe;
Two traversing carts that move along these two traversing rails,
A travel guide member connecting these two traversing carts;
A welding traveling carriage guided and moved by the traveling guide member;
A torch head attached to the welding carriage,
A welding machine for supplying a welding wire and electric power to a welding torch which is a component of the torch head;
Have
The torch head is
A traverse guide member arranged in the same direction as the traverse rail;
An upper and lower member movably attached along the traverse guide member;
An arc moving device attached to the upper and lower members so as to be movable in the same direction as the traverse guide member;
It consists of a weaving device equipped with a welding torch, movably mounted along this arc moving device,
And, using a build-up welding device that controls the repetition cycle of the arc phase and the short-circuiting phase with a welding power source, supplying a welding wire made of stainless steel or a nickel-based alloy to the welding torch and electric power,
A build-up welding method characterized by using only argon gas as a shielding gas used during arc welding.
JP2010199904A 2010-09-07 2010-09-07 Build-up welding device and method Pending JP2012055917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010199904A JP2012055917A (en) 2010-09-07 2010-09-07 Build-up welding device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010199904A JP2012055917A (en) 2010-09-07 2010-09-07 Build-up welding device and method

Publications (1)

Publication Number Publication Date
JP2012055917A true JP2012055917A (en) 2012-03-22

Family

ID=46053658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010199904A Pending JP2012055917A (en) 2010-09-07 2010-09-07 Build-up welding device and method

Country Status (1)

Country Link
JP (1) JP2012055917A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117697296A (en) * 2024-01-08 2024-03-15 湖北和亿方装配式建筑科技有限公司 Automatic fixture for welding and processing prefabricated building components

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007210012A (en) * 2006-02-09 2007-08-23 Mitsubishi Heavy Ind Ltd Method and device for overlaying steel tube
JP2008093732A (en) * 2006-09-12 2008-04-24 Fujikoo:Kk Build-up welding method and build-up welded portion formed by the method
JP2011521787A (en) * 2008-05-30 2011-07-28 スネクマ Manufacture of parts of metal parts using MIG method with pulsed current and wire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007210012A (en) * 2006-02-09 2007-08-23 Mitsubishi Heavy Ind Ltd Method and device for overlaying steel tube
JP2008093732A (en) * 2006-09-12 2008-04-24 Fujikoo:Kk Build-up welding method and build-up welded portion formed by the method
JP2011521787A (en) * 2008-05-30 2011-07-28 スネクマ Manufacture of parts of metal parts using MIG method with pulsed current and wire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117697296A (en) * 2024-01-08 2024-03-15 湖北和亿方装配式建筑科技有限公司 Automatic fixture for welding and processing prefabricated building components
CN117697296B (en) * 2024-01-08 2024-05-14 湖北和亿方装配式建筑科技有限公司 Automatic fixture for welding and processing prefabricated building components

Similar Documents

Publication Publication Date Title
KR101067998B1 (en) Plasma automatic welding machine for pipe circle welding
JP5883674B2 (en) Multi-electrode gas shield arc welding method and multi-electrode gas shield arc welding apparatus
KR101893086B1 (en) Welding device and welding system
KR101454728B1 (en) An overlay welding device for a long pipe
KR101614257B1 (en) Apparatus for pipe butt submerged arc welding
JP2010137267A (en) Horizontal type automatic welding equipment for workpiece and workpiece welding method using the same
CN105431249B (en) For generating the device of weld seam in the slot
KR20180038131A (en) Apparatus for steel plate butt submerged arc welding
KR101538249B1 (en) Gas shielded arc welding method and welding apparatus
JP2007290005A (en) Build-up welding device for structure and build-up welding method using the same device
JP2012055917A (en) Build-up welding device and method
KR20180080529A (en) Automatic welders for pipes
JP2013136085A (en) Build-up welding method and device
KR101505733B1 (en) Automatic Welding Apparatus for pipe
KR20120007377U (en) Vertical fillet welding machine
CN205464735U (en) Oxygen rifle shower nozzle copper steel automatic weld equipment
KR101367009B1 (en) A Welding System
KR101925187B1 (en) Apparatus for steel plate butt submerged arc welding
CN205393753U (en) Remote control's submerged arc welding automatic regulating apparatus
CN108907413B (en) Welding vehicle, large-diameter pipe inner and outer welding device and welding method
KR20140020398A (en) High efficiency carriage for submerged arc welding
CN201214172Y (en) Spot welding device for rail vehicle body edge beam assembling
JP2022139971A (en) Arc-welding device and welded article manufacturing method
CN112548282A (en) Gantry submerged arc welding machine
CN103273175B (en) Adapter is without bismuth stainless flux-cored wire gas shielded welding progress

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130610

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20140313

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20140318

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20140722