WO2016103306A1 - 肉盛溶接装置 - Google Patents
肉盛溶接装置 Download PDFInfo
- Publication number
- WO2016103306A1 WO2016103306A1 PCT/JP2014/006506 JP2014006506W WO2016103306A1 WO 2016103306 A1 WO2016103306 A1 WO 2016103306A1 JP 2014006506 W JP2014006506 W JP 2014006506W WO 2016103306 A1 WO2016103306 A1 WO 2016103306A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- welding
- circular tube
- unit
- round pipe
- welding torch
- 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.)
- Ceased
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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
- B23K9/044—Built-up welding on three-dimensional surfaces
- B23K9/046—Built-up welding on three-dimensional surfaces on surfaces of revolution
- B23K9/048—Built-up welding on three-dimensional surfaces on surfaces of revolution on cylindrical surfaces
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
- B23K37/0229—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track the guide member being situated alongside the workpiece
-
- 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
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Definitions
- the present invention relates to an overlay welding apparatus.
- Patent Document 1 discloses a build-up welding apparatus that performs build-up welding on the outer peripheral surface of a straight circular tube while rotating the tube. For example, if a material having high corrosion resistance is build-up welded to the outer peripheral surface of the circular pipe, the corrosion resistance of the outer peripheral surface can be improved.
- valley depth When overlay welding is performed on the outer peripheral surface of a circular pipe, a spiral bead is formed, and a valley is formed between adjacent beads. If the distance from the bottom of the valley to the top of the bead (hereinafter referred to as “valley depth”) is large, there is a risk that a crack will occur from the valley due to bending and the circular tube may be damaged.
- the present invention has been made in view of the circumstances as described above, and provides a build-up welding apparatus capable of build-up welding capable of ensuring good build-up quality while keeping the bead valley depth small. It is an object.
- An overlay welding apparatus is an overlay welding apparatus that performs overlay welding on an outer peripheral surface of a circular pipe, and includes a rotation drive unit that rotates the circular pipe around an axis, and the circular pipe
- a welding unit that performs overlay welding on the outer peripheral surface of the rotating circular pipe while proceeding along the axial direction, and the welding unit generates an arc between the outer peripheral surface of the circular pipe and the welding unit.
- a torch and a welding material supply section for supplying a welding material to a welding location, and the welding torch has a tip in a reverse rotation direction opposite to the rotation direction of the circular tube from the top of the circular tube.
- the circular tube is arranged to be positioned at an angular position advanced by an angle, and the rotational direction of the circular tube with respect to a reference line passing through the central axis of the circular tube and the tip of the welding torch as viewed from the axial direction of the circular tube It is inclined at a predetermined angle to the side.
- the molten pool (a pool of molten metal formed by melting the base metal and welding material of the circular pipe) is located on the reverse rotation direction side from the top of the circular pipe, the molten pool is circular due to gravity. Try to spread in the circumferential direction of the tube. Thereby, the bead formed in the outer peripheral surface of a circular pipe becomes gentle, and a valley depth becomes small. In addition, when the weld pool to which the welding material is supplied increases, the work stability is also improved.
- the welding torch is inclined toward the rotation direction side of the circular tube with respect to the reference line, it is possible to generate a large number of arcs in the direction in which the molten pool expands due to gravity, thereby assisting the expansion of the molten pool. be able to.
- the welding material supply unit is configured to provide the welding material along a supply direction inclined at a predetermined angle toward the rotation direction of the circular tube with respect to the welding torch when viewed from the axial direction of the circular tube. May be configured to supply. According to such a configuration, since the molten pool precedes the welding torch and the influence of arc heat is less likely to directly affect the base material, low dilution can be obtained.
- the welding torch may be inclined at a predetermined angle in the backward direction of the welding unit with respect to a reference plane perpendicular to the central axis of the circular pipe. According to such a configuration, since the molten pool spreads rearward in the axial direction relative to the welding torch, the bead valley depth can be suppressed small.
- the welding torch may be inclined at a predetermined angle toward the traveling direction side of the welding unit with respect to a reference plane perpendicular to the central axis of the circular pipe. According to such a configuration, since the arc generated from the welding torch extends in the axial direction of the circular tube, the molten pool is easily formed to expand in the axial direction of the circular tube. Thereby, a bead becomes smooth and a valley depth can be made small.
- the depth of the bead valley can be kept small, and good overlay quality can be ensured.
- FIG. 1 is a schematic configuration diagram of the overlay welding apparatus.
- FIG. 2 is a schematic view of a cross section taken along the line II-II in FIG.
- the overlay welding apparatus 100 is an apparatus that performs overlay welding on the outer peripheral surface of the straight circular tube 101.
- the material (base material) of the circular tube 101 is iron, but the material of the circular tube 101 is not limited to this.
- the overlay welding apparatus 100 includes a rotation drive unit 10 and a welding unit 20. Further, the welding unit 20 includes a traveling unit 21, a copying unit 22, a welding torch 23, an AVC (Arc Voltage Control) unit 24, and a welding material supply unit 25.
- the welding unit 20 includes a traveling unit 21, a copying unit 22, a welding torch 23, an AVC (Arc Voltage Control) unit 24, and a welding material supply unit 25.
- AVC Arc Voltage Control
- the rotation drive unit 10 is a portion that holds one end portion of the circular tube 101 and rotates the held circular tube 101 about the axis (clockwise in FIG. 2), and is fixed to the base portion 11 of the overlay welding apparatus 100. Has been. In addition, although it changes with construction conditions, the rotation drive part 10 rotates the circular tube 101 at about 5 rpm, for example, when performing overlay welding.
- the traveling portion 21 is a portion that advances the entire welding unit 20 along the axial direction of the circular tube 101 (hereinafter simply referred to as “axial direction”). In FIG. 1, the traveling portion 21 advances toward the right side of the page when performing overlay welding.
- the base portion 11 of the overlay welding apparatus 100 is provided with a rail 12 that extends along the axial direction, and the traveling portion 21 travels along the rail 12.
- the copying unit 22 is supported by the traveling unit 21 through the elastic unit 26 so as to be displaceable, and is in contact with the outer peripheral surface of the circular tube 101 through the roller 27. Therefore, even when the circular tube 101 is distorted by the heat of overlay welding, the copying portion 22 can move in the axial direction following the circular tube 101 in response to the distortion.
- the welding torch 23 is a TIG welding torch that generates an arc 102 between the tungsten electrode 28 attached to the tip and the outer peripheral surface of the circular tube 101.
- the welding torch 23 may be a plasma arc welding torch.
- the molten pool 104 formed by the arc 102 is shielded by an argon gas injected from the periphery of the tungsten electrode 28 or a shielding gas in which another gas is mixed with the argon gas.
- the AVC unit 24 includes a torch bracket 31 to which a welding torch 23 is attached, a ball screw and a drive motor (not shown), a drive mechanism 32 that linearly drives the torch bracket 31, and an illustration that controls the operation of the drive mechanism.
- An approximate control device is provided. The control device detects a voltage (welding voltage) between the welding torch 23 and the circular pipe 101 during overlay welding, and keeps the distance between the tip of the tungsten electrode 28 and the circular pipe 101 constant based on the detected welding voltage. Thus, the operation of the drive motor of the drive mechanism 32 is controlled.
- the welding material supply unit 25 is a part that supplies the welding material 103 to a welding location.
- the welding material 103 is formed in a wire shape, but the welding material 103 may be in a powder shape.
- the welding material supply part 25 has the heating part 30 which heats the welding material 103 beforehand so that the welding material 103 melts quickly.
- “Alloy625” having high corrosion resistance is used as the welding material 103, but the welding material 103 is not limited to this.
- the outline of the overlay welding apparatus 100 is as described above.
- the bead 105 having a spiral shape is formed on the outer surface of the circular tube 101 by performing build-up welding while the welding unit 20 is advanced in the axial direction while rotating the circular tube 101 by the rotation drive unit 10. Is formed.
- the welding torch 23 has a tip E advanced from the top T of the circular tube 101 by a predetermined angle ⁇ in a reverse rotation direction (counterclockwise direction in FIG. 2) opposite to the rotation direction of the circular tube 101. It is arranged so that it is located at an angular position.
- the molten pool 104 is formed on the reverse rotation direction side of the top portion T of the circular tube 101, so that the molten pool 104 tends to expand downward due to gravity.
- the weld bead 105 becomes gentle and the valley depth becomes small.
- the welding material 103 can be supplied stably.
- the force in the same direction always acts on the molten pool 104 due to gravity, so that the shape is stabilized. This is also preferable for stably supplying the welding member 103.
- the inclination angle of the welding torch 23 will be described.
- the welding torch 23 is viewed from the axial direction of the circular tube 101, and the rotational direction of the circular tube 101 with respect to a reference line L passing through the central axis C of the circular tube 101 and the tip E of the welding torch 23 ( In FIG. 2, it is inclined by a predetermined angle ⁇ toward the clockwise direction.
- the molten pool 104 becomes easier to expand.
- the valley depth can be further reduced, and the stability of the work is also improved.
- the welding material supply unit 25 has the welding material 103 along the supply direction inclined by a predetermined angle ⁇ on the rotation direction side of the circular tube 101 with respect to the welding torch 23 when viewed from the axial direction of the circular tube 101. Is configured to supply. With this configuration, when the welding material 103 supplied at a high speed from the rotation direction side is melted, the welding material 103 absorbs part of the arc thermal energy, so that low dilution and high construction stability are obtained. It is done.
- the welding torch 23 is inclined at a predetermined angle ⁇ toward the backward direction side of the welding unit 20 with respect to a reference plane P perpendicular to the central axis C of the circular pipe 101.
- the welding torch 23 may be inclined toward the preceding direction side of the welding unit 20 with respect to the reference plane P perpendicular to the central axis C of the circular pipe 101.
- the valley depth of the bead 105 can be kept small.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
Description
はじめに、肉盛溶接装置100の概略を説明する。肉盛溶接装置100は、直線状の円管101の外周面に肉盛溶接を行う装置である。本実施形態では、円管101の材料(母材)が鉄である場合を想定しているが、円管101の材料はこれに限定されない。
次に、溶接トーチ23の位置について説明する。図2に示すように、溶接トーチ23は、その先端Eが円管101の頂部Tから円管101の回転方向とは逆の逆回転方向(図2では反時計回り方向)に所定角度α進んだ角度位置に位置するように配置されている。
次に、溶接トーチ23の傾斜角度について説明する。図2に示すように、溶接トーチ23は、円管101の軸方向からみて、円管101の中心軸C及び溶接トーチ23の先端Eを通る基準線Lに対して円管101の回転方向(図2では時計回り方向)側に所定角度β傾斜している。このように溶接トーチ23を傾斜させると、溶融池104が一層広がりやすくなる。その結果、一層谷間深さを小さくすることができ、作業の安定性も向上する。
次に、溶接材料103の供給角度について説明する。図2に示すように、溶接材料供給部25は、円管101の軸方向からみて、溶接トーチ23に対して円管101の回転方向側に所定角度γ傾斜した供給方向に沿って溶接材料103を供給するように構成されている。このように構成することで、回転方向側から高速で供給される溶接材料103が溶融される際に溶接材料103はアーク熱エネルギーの一部を吸収するため、低希釈、高い施工安定性が得られる。
次に、円管101の軸方向における溶接トーチ23の傾斜角度について説明する。図1に示すように、溶接トーチ23は、円管101の中心軸Cに垂直な基準面Pに対して溶接ユニット20の後退方向側に所定角度δ傾斜している。このように溶接トーチ23を傾斜させると、溶融池103が溶接トーチ23よりも先行し、アーク熱の影響が直接母材に及びにくいため、低希釈が得られる。尚、溶接トーチ23は、円管101の中心軸Cに垂直な基準面Pに対して溶接ユニット20の先行方向側に傾斜していてもよい。この場合、溶融池104は溶接トーチ23よりも軸方向後方に広がるためビード105の谷間深さを小さく抑えることが可能となる。
20 溶接ユニット
23 溶接トーチ
25 溶接材料供給部
100 肉盛溶接装置
101 円管
102 アーク
103 溶接材料
P 基準面
L 基準線
Claims (4)
- 円管の外周面に肉盛溶接を行う肉盛溶接装置であって、
前記円管を軸回りに回転させる回転駆動部と、
前記円管の軸方向に沿って進行しながら、回転する前記円管の外周面に肉盛溶接を行う溶接ユニットと、を備え、
前記溶接ユニットは、
前記円管の外周面との間にアークを発生させる溶接トーチと、
溶接材料を溶接箇所に供給する溶接材料供給部と、を有し、
前記溶接トーチは、その先端が前記円管の頂部から前記円管の回転方向とは逆の逆回転方向へ所定角度進んだ角度位置に位置するように配置されているとともに、前記円管の軸方向からみて、前記円管の中心軸及び前記溶接トーチの先端を通る基準線に対して前記円管の回転方向側に所定角度傾斜している、肉盛溶接装置。 - 前記溶接材料供給部は、前記円管の軸方向からみて、前記溶接トーチに対して前記円管の回転方向側に所定角度傾斜した方向に沿って前記溶接材料を供給するよう構成されている、請求項1に記載の肉盛溶接装置。
- 前記溶接トーチは、前記円管の中心軸に垂直な基準面に対して前記溶接ユニットの後退方向側に所定角度傾斜している、請求項1又は2に記載の肉盛溶接装置。
- 前記溶接トーチは、前記円管の中心軸に垂直な基準面に対して前記溶接ユニットの進行方向側に所定角度傾斜している、請求項1又は2に記載の肉盛溶接装置。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016565606A JP6576364B2 (ja) | 2014-12-26 | 2014-12-26 | 肉盛溶接装置 |
| PCT/JP2014/006506 WO2016103306A1 (ja) | 2014-12-26 | 2014-12-26 | 肉盛溶接装置 |
| CN201480084381.4A CN107000093B (zh) | 2014-12-26 | 2014-12-26 | 堆焊装置 |
| KR1020177020236A KR102001171B1 (ko) | 2014-12-26 | 2014-12-26 | 육성 용접 장치 |
| US15/539,827 US10646946B2 (en) | 2014-12-26 | 2014-12-26 | Weld overlay system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/006506 WO2016103306A1 (ja) | 2014-12-26 | 2014-12-26 | 肉盛溶接装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016103306A1 true WO2016103306A1 (ja) | 2016-06-30 |
Family
ID=56149410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2014/006506 Ceased WO2016103306A1 (ja) | 2014-12-26 | 2014-12-26 | 肉盛溶接装置 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10646946B2 (ja) |
| JP (1) | JP6576364B2 (ja) |
| KR (1) | KR102001171B1 (ja) |
| CN (1) | CN107000093B (ja) |
| WO (1) | WO2016103306A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021089020A (ja) * | 2019-12-03 | 2021-06-10 | 株式会社クボタ | 挿し口突部の形成方法 |
| CN116140754A (zh) * | 2023-02-15 | 2023-05-23 | 广东博盈特焊技术股份有限公司 | 一种复合管的螺旋堆焊方法及复合管 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7189064B2 (ja) * | 2019-03-29 | 2022-12-13 | 株式会社神戸製鋼所 | 溶接システム、制御装置、制御プログラム及び溶接方法 |
| EP4019172A1 (en) * | 2020-12-23 | 2022-06-29 | Siemens Gamesa Renewable Energy A/S | Additive manufacturing method and apparatus |
| CN116652456B (zh) * | 2023-04-12 | 2024-10-29 | 中国石油大学(华东) | 一种管道外壁堆焊工艺 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2841687A (en) * | 1954-02-18 | 1958-07-01 | Union Carbide Corp | Method of applying hard-facing metals |
| JPS5010750A (ja) * | 1973-06-06 | 1975-02-04 | ||
| JPS5868470A (ja) * | 1981-10-19 | 1983-04-23 | Kawasaki Steel Corp | 円周肉盛溶接方法 |
| JP2013158792A (ja) * | 2012-02-03 | 2013-08-19 | Daido Steel Co Ltd | 肉盛溶接方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6781083B1 (en) * | 2001-08-08 | 2004-08-24 | Howard Derrick Keller | Weld overlay system |
| US6858813B1 (en) * | 2002-05-03 | 2005-02-22 | Howard Derrick Keller | Weld overlay system |
| CN2686783Y (zh) * | 2004-03-15 | 2005-03-23 | 中国第二十冶金建设公司检修协力分公司 | 辊子修复自动堆焊装置 |
| CN2754796Y (zh) * | 2004-09-29 | 2006-02-01 | 上海施威焊接产业有限公司 | 横臂式轧辊自动堆焊机 |
| KR20130103495A (ko) * | 2010-08-05 | 2013-09-23 | 타이요 닛폰 산소 가부시키가이샤 | 복합 용접 방법 및 복합 용접용 용접 토치 |
| CN107457509B (zh) * | 2017-08-15 | 2019-06-21 | 溧阳天山水泥有限公司 | 一种石灰石破碎辊耐磨层预热堆焊装置 |
-
2014
- 2014-12-26 JP JP2016565606A patent/JP6576364B2/ja active Active
- 2014-12-26 US US15/539,827 patent/US10646946B2/en active Active
- 2014-12-26 KR KR1020177020236A patent/KR102001171B1/ko active Active
- 2014-12-26 CN CN201480084381.4A patent/CN107000093B/zh active Active
- 2014-12-26 WO PCT/JP2014/006506 patent/WO2016103306A1/ja not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2841687A (en) * | 1954-02-18 | 1958-07-01 | Union Carbide Corp | Method of applying hard-facing metals |
| JPS5010750A (ja) * | 1973-06-06 | 1975-02-04 | ||
| JPS5868470A (ja) * | 1981-10-19 | 1983-04-23 | Kawasaki Steel Corp | 円周肉盛溶接方法 |
| JP2013158792A (ja) * | 2012-02-03 | 2013-08-19 | Daido Steel Co Ltd | 肉盛溶接方法 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021089020A (ja) * | 2019-12-03 | 2021-06-10 | 株式会社クボタ | 挿し口突部の形成方法 |
| JP2021127833A (ja) * | 2019-12-03 | 2021-09-02 | 株式会社クボタ | 挿し口突部の形成方法 |
| JP7019854B2 (ja) | 2019-12-03 | 2022-02-15 | 株式会社クボタ | 挿し口突部の形成方法 |
| CN116140754A (zh) * | 2023-02-15 | 2023-05-23 | 广东博盈特焊技术股份有限公司 | 一种复合管的螺旋堆焊方法及复合管 |
Also Published As
| Publication number | Publication date |
|---|---|
| US10646946B2 (en) | 2020-05-12 |
| US20170355033A1 (en) | 2017-12-14 |
| KR20170097172A (ko) | 2017-08-25 |
| JPWO2016103306A1 (ja) | 2017-11-02 |
| CN107000093B (zh) | 2019-06-21 |
| JP6576364B2 (ja) | 2019-09-18 |
| KR102001171B1 (ko) | 2019-07-17 |
| CN107000093A (zh) | 2017-08-01 |
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