CN103273169A - Multi-wire bead welding system and process thereof - Google Patents
Multi-wire bead welding system and process thereof Download PDFInfo
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- CN103273169A CN103273169A CN2013101801498A CN201310180149A CN103273169A CN 103273169 A CN103273169 A CN 103273169A CN 2013101801498 A CN2013101801498 A CN 2013101801498A CN 201310180149 A CN201310180149 A CN 201310180149A CN 103273169 A CN103273169 A CN 103273169A
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Abstract
The invention discloses a multi-wire (solid or flux-cored) bead welding system adopting an inert gas protection or submerged arc method, and a process of the multi-wire bead welding system. The multi-wire bead welding system and the process of the multi-wire bead welding system are used for replacing surfacing with band-electrode to obtainer higher production efficiency. The multi-wire bead welding system comprises a welding gun swing mechanism (11), a multi-wire welding gun (6), a wire-feeding pipe (4) and at least two wire-feeding machines (5). Compared with traditional bead welding, the multi-wire bead welding is higher in deposition rate. Due to the fact that a lap joint area of multi-wire bead welding is soother than that of traditional bead welding, the machining time needed to obtain a smooth surface is largely shortened. A machine head of the multi-wire bead welding system can swing in the welding process, the fusion ratio between bead welding materials and wood is improved while a wider weld joint is obtained, and the unique swing function can guarantee a bead welding layer to be more uniform.
Description
Technical field
The present invention relates to the metal solder field, be used for the high-quality built-up welding of high efficiency, particularly a kind of multifibres overlaying system and technology thereof.
Background technology
Bead-welding technology is an important branch in the welding field, and overlaying method commonly used at present has: strip surfacing, traditional submerged arc overlay welding, real core or the built-up welding of medicine core consumable electrode gas-arc, plasma arc surfacing etc.
Strip surfacing can't buy relevant steel band owing to will use the square-section steel band in market when carrying out some specific alloy built-up welding; The cost of steel band is higher than GMAW welding wire; The conveying of steel band needs special wire feeder, maintenance difficult when breaking down; When steel band is wideer, need there be magnetic pole to eliminate arc blow to the influence of welding bead.
Tradition submerged-arc welding, real core or the built-up welding of medicine core consumable electrode gas-arc, fusion penetration is big, dilution rate is high, needs more layer in order to reach required alloy content; The width of welding bead is narrower, and productivity ratio is low.
The plasma arc surfacing apparatus expensive; The dangerous factor of technical process must be protected eyes.
Summary of the invention
Multifibres overlaying system of the present invention uses the submerged arc or the real core of consumable electrode or the flux-cored wire that easily obtain, and under the prerequisite that keeps low fusion penetration, low dilution rate and high deposition rate of strip surfacing, equipment is simpler, and technology is more flexible.The technical solution adopted for the present invention to solve the technical problems is:
The multifibres bead-welding technology adopts at least three root bead silks to carry out built-up welding.
The welding procedure of described process using is that submerged arc or welding connect.
Described process using exchanges or the direct current built-up welding.
Described welding wire is real core, medicine core or powder core.
Described process using diameter carries out built-up welding less than the thin welding wire of 5.0mm.
Described every root bead silk adopts the control of sending to of independent or grouping respectively.
Described both sides welding wire and middle welding wire adopt respectively and independently send control to.
The feed rate of described both sides welding wire is consistent or different with the feed rate of middle welding wire.
Described every root bead silk adopts identical or different material.
The multifibres overlaying system, comprise welding gun walking car 9, welding gun oscillation mechanism 11, multifibres welding gun 6, wire-feeding pipe 4 and at least two wire-feed motor 5, described welding gun oscillation mechanism 11 is installed on the welding gun walking car 9, multifibres welding gun 6 is installed on the welding gun oscillation mechanism 11, described multifibres welding gun 6 is done linear movement at the crossbeam of welding gun walking car 9, described wire-feed motor 5 is sent into welding wire respectively in the wire-feeding pipe 4, described multifibres welding gun 6 comprises welding gun body 1, at least 3 ignition tips 2, described welding gun body 1 links to each other with the source of welding current by welding cable, wire-feeding pipe 4 is fixed on the welding gun, described wire-feeding pipe 4 is corresponding with ignition tip 2, described ignition tip 2 is arranged in juxtaposition, welding wire is side by side by ignition tip 2, and swing mechanism can adopt bolt to be connected on the welding gun walking car.
Described system also comprises water-cooled assembly 3, and described cooling package 3 is realized the water-cooled of Butt welding gun by inner water flowing cooling duct.
The source of welding current of described multifibres welding gun adopts the mode of source of welding current parallel connection to give the welding gun body 1 power supply.
Described system also comprises piece-holder rotation lathe 7 and welding control system 8, and described welding control system links to each other with described welding gun walking car 9, piece-holder rotation lathe 7, wire-feed motor 5, multifibres welding gun 6, the source of welding current respectively by circuit.
Be connected with flux delivery mechanism 10 on the described welding gun walking car 9.
Described system can with the integration of operation of push-and-pull silk wire feed system, such as the inner built-up welding of big workpiece.
Multifibres overlaying system of the present invention and technology thereof have following advantage and a beneficial effect:
1, welding material: with respect to the employed steel band of strip surfacing, real core or the flux-cored wire cost of process using of the present invention are low, and when carrying out some specific alloy built-up welding, welding wire is more easily buying also.
2, equipment: the multifibres surfacing equipment is compared more flexible and simpler with welding gun with traditional strip surfacing; The source of welding current is accomplished to be arranged in parallel easily, and AC mode can be controlled fusion penetration and guarantee high deposition rate well keeping under the situation of low dilution rate, and the ignition tip of multifibres built-up welding is lower than strip surfacing head cost, longer service life.
3, welding quality: wire feed rate and power supply (parallel connection power supply) can be controlled separately in the multifibres bead-welding technology, welding control system is by controlling the rotating speed of different wire feeding motors respectively, realize controlling respectively the feed rate of every root bead silk, the both sides wire feed rate is low, middle wire feed rate is high relatively, control the weld seam both sides better and be shaped, thereby the bead welding both sides is more smooth, the shape characteristic of flat in the middle of can forming during welding, the mild transition in edge satisfies the weld seam pattern of technological requirement.
4, productivity ratio: thus the multifibres submerged arc overlay welding can use the drum welding wire to save owing to changing the downtime that steel band causes; Than traditional built-up welding, the deposition rate of multifibres built-up welding is higher; Because the overlap of multifibres built-up welding is more smooth than traditional built-up welding, so reduce in a large number needed machining time for terrible smooth surface.
5, the head of system of the present invention can be swung in welding process, when obtaining wideer weld seam, improves the penetration ratio of resurfacing welding material and timber, and unique swing function also can guarantee overlay cladding uniformity more.
Description of drawings
Fig. 1 is multifibres overlaying system main device schematic diagram.
1 is the welding gun body among the figure, and 2 is ignition tip, and 3 is cooling package, and 4 is wire-feeding pipe, and 5 is wire-feed motor, and 6 is the multifibres welding gun, and 11 is welding gun oscillation mechanism.
Mode single or grouping is adopted in the control of sending to of welding wire, and single mode is that each welding wire has a wire-feed motor control, and packet mode is that the both sides welding wire is one group, adopts a wire-feed motor, and middle welding wire is one group, adopts one or more wire-feed motor.Wire-feed motor adopts the motor-driven four-wheel wire-feed motor of standard.In general welding wire is that the mid portion welding wire uses a kind of wire feed rate according to being distributed in position in the welding bead respectively by different wire-feed motor in parallel, and the both sides welding wire uses another kind of wire feed rate.
The multifibres welding gun is made up of a plurality of independently ignition tips, and by ignition tip (the every root bead silk design independent ignition tip installed), to conducting block power side by side by the power supply unification for many root beads silk, and electric current is transmitted on each ignition tip by conducting block.The width of welding bead is selected the quantity of welding wire as required, to the quantity of welding wire without limits.Welding system adopts the mode of many source of welding current parallel connections to power to conducting block, with the welding current value that meets the demands; Perhaps can between silk and silk, carry out insulation processing, power respectively with many power supplys, support the energy of the wire melting needs in a plurality of zones.
Fig. 2 is multifibres overlaying system schematic diagram.
Among the figure, 3 is the water-cooled assembly, and 5 is wire-feed motor, and 6 is the multifibres welding gun, and 7 are piece-holder rotation lathe, and 8 is welding control system, and 9 are welding gun walking car, and 10 is flux delivery mechanism, and 11 is welding gun oscillation mechanism.The source of welding current is arranged in parallel, and the two poles of the earth are connected on multifibres welding gun in parallel and the piece-holder rotating mechanism and form the loop.Welding control system adopts independent control to each wire-feed motor, and wire feed rate, start-stop time can be set respectively.Welding gun links to each other with welding gun walking car 9 by grip block, does linear movement at extension rod; Welding control system passes through the spinning movement of control lathe and the linear movement of welding gun realizes spiral built-up welding campaign, and coordinates the parameter realization Control Welding Process of many wire-feed motor in parallel of control, the source of welding current.Flux delivery mechanism 10 is installed on the welding gun walking dolly, sends into welding wire before welding wire.Reach the purpose of cooling welding tool in the water-cooled assembly 11 by recirculated water.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further explained explanation.
Embodiment 1
Be example with 8 built-up welding, the multifibres overlaying system, comprise the multifibres welding gun, 8 wire-feeding pipes and two wire-feed motor, the multifibres welding gun comprises the welding gun body, 8 ignition tips and cooling package, the welding gun body links to each other with the source of welding current by welding cable, wire-feeding pipe is fixed on the welding gun, the position of wire-feeding pipe is corresponding with ignition tip respectively, wire-feed motor is sent to welding wire respectively in the wire-feeding pipe of multifibres welding gun, welding wire passes through ignition tip side by side, system also comprises piece-holder rotation lathe, welding control system, with welding gun walking car, the multifibres welding gun is done linear movement at the extension rod of welding gun walking car, described welding control system by circuit respectively with described welding gun walking car, piece-holder rotation lathe, wire-feed motor, the multifibres welding gun, the source of welding current links to each other.Be connected with flux delivery mechanism on the welding gun walking car.
Use the welding wire of 8 dish diameter 1.2mm, the spacing between every root bead silk is set to 8mm.Middle 6 root bead silk wire feed rate 5000mm/min, both sides 2 root bead silk wire feed rate 9000mm/min.The constant voltage AC mode, arc voltage 28V; Total current 950A.
Use above parameter welding process stable, the smooth no undercut of welding bead.
Claims (15)
1. the multifibres bead-welding technology is characterized in that, described process using at least three root bead silks carry out built-up welding.
2. multifibres bead-welding technology according to claim 1 is characterized in that, the welding procedure of described process using is that submerged arc or welding connect.
3. multifibres bead-welding technology according to claim 1 is characterized in that, described process using exchanges or the direct current built-up welding.
4. according to claim 1 or 2 or 3 described multifibres bead-welding technologies, it is characterized in that described welding wire is real core, medicine core or powder core.
5. multifibres bead-welding technology according to claim 4 is characterized in that, described process using diameter carries out built-up welding less than the welding wire of 5.0mm.
6. according to claim 1 or 2 or 3 described multifibres bead-welding technologies, it is characterized in that described every root bead silk adopts the control of sending to of independent or grouping respectively.
7. multifibres bead-welding technology according to claim 6 is characterized in that, described both sides welding wire and middle welding wire adopt respectively and independently send control to.
8. multifibres bead-welding technology according to claim 7 is characterized in that, the feed rate of described both sides welding wire is consistent or different with the feed rate of middle welding wire.
9. multifibres bead-welding technology according to claim 8 is characterized in that, described every root bead silk adopts identical or different material.
10. multifibres overlaying system, it is characterized in that, comprise welding gun walking car (9), welding gun oscillation mechanism (11), multifibres welding gun (6), wire-feeding pipe (4) and at least two wire-feed motor (5), described welding gun oscillation mechanism (11) is installed on the welding gun walking car (9), multifibres welding gun (6) is installed on the welding gun oscillation mechanism (11), described multifibres welding gun (6) is done linear movement at the crossbeam of welding gun walking car (9), described wire-feed motor (5) is sent into welding wire respectively in the wire-feeding pipe (4), described multifibres welding gun (6) comprises welding gun body (1), at least 3 ignition tips (2), described welding gun body (1) links to each other with the source of welding current by welding cable, wire-feeding pipe (4) is fixed on the welding gun, described wire-feeding pipe (4) is corresponding with ignition tip (2), described ignition tip (2) is arranged in juxtaposition, and welding wire is side by side by ignition tip (2).
11. multifibres overlaying system according to claim 10 is characterized in that, described system also comprises water-cooled assembly (3), and described cooling package (3) is realized the water-cooled of Butt welding gun by inner water flowing cooling duct.
12., it is characterized in that the source of welding current of described multifibres welding gun adopts the mode of source of welding current parallel connection to give welding gun body (1) power supply according to claim 10 or 11 described multifibres overlaying systems.
13. multifibres spiral according to claim 10 or linear bead weld system, it is characterized in that, described system also comprises piece-holder rotation lathe (7) and welding control system (8), and described welding control system links to each other with described welding gun walking car (9), piece-holder rotation lathe (7), wire-feed motor (5), multifibres welding gun (6), the source of welding current respectively by circuit.
14. multifibres overlaying system according to claim 13 is characterized in that, is connected with flux delivery mechanism (10) on the described welding gun walking car (9).
15. multifibres overlaying system according to claim 10 is characterized in that, described system can with the integration of operation of push-and-pull silk wire feed system.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551707A (en) * | 2013-11-14 | 2014-02-05 | 南车长江车辆有限公司 | Method for repairing wagon coupler yoke key |
| CN104526115A (en) * | 2014-11-04 | 2015-04-22 | 南方增材科技有限公司 | Electric smelting forming method for nuclear power station pressure vessel shell |
| CN105983741A (en) * | 2015-03-23 | 2016-10-05 | 林肯环球股份有限公司 | Method and system for additive manufacturing using high energy source and hot-wire |
| CN108747133A (en) * | 2018-07-27 | 2018-11-06 | 常州机电职业技术学院 | A kind of welding gun swinging device |
| CN109175604A (en) * | 2018-10-17 | 2019-01-11 | 沈阳鼓风机集团股份有限公司 | A kind of ultrahigh speed overlaying method of ultralow dilution rate |
| CN110788447A (en) * | 2019-11-12 | 2020-02-14 | 南京引力工业焊接技术研究院有限公司 | Multi-power-supply parallel multi-wire efficient arc welding device and application thereof |
| CN111014907A (en) * | 2019-11-18 | 2020-04-17 | 申英强 | Narrow-gap filament matrix type welding gun and welding process |
| CN114211091A (en) * | 2021-12-29 | 2022-03-22 | 南京理工大学 | Efficient MIG electric arc material increase method and device without co-melting pool |
| CN114952189A (en) * | 2022-05-17 | 2022-08-30 | 武汉理工大学 | Multi-wire electric arc additive synchronous blank-making composite rolling forming method for large ring piece |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136578A (en) * | 1979-04-13 | 1980-10-24 | Mitsubishi Heavy Ind Ltd | Flux flow preventing device of submerged arc welding |
| EP0224669A2 (en) * | 1985-11-23 | 1987-06-10 | Man Gutehoffnungshütte Gmbh | Device for submerged welding with several thread electrodes ordered side by side or in front and behind |
| US5468295A (en) * | 1993-12-17 | 1995-11-21 | Flame-Spray Industries, Inc. | Apparatus and method for thermal spray coating interior surfaces |
| US6909066B2 (en) * | 2003-07-30 | 2005-06-21 | Edison Welding Institute | Adaptive and synergic fill welding method and apparatus |
| CN101058126A (en) * | 2007-04-13 | 2007-10-24 | 兰州理工大学 | Cold wire submerged-arc welding method and device, control system and control method |
| CN101306488A (en) * | 2007-05-14 | 2008-11-19 | 上海电气电站设备有限公司 | Double arc four wire automatic arc-submerging welder and manufacture method thereof |
| CN202291780U (en) * | 2011-10-11 | 2012-07-04 | 中国海洋石油总公司 | Machine head of multi-wire submerged arc welding machine |
| CN202356771U (en) * | 2011-12-08 | 2012-08-01 | 中国海洋石油总公司 | Operating machine of multi-wire submerged arc welding machine |
| KR20120008053U (en) * | 2011-05-17 | 2012-11-27 | 김충선 | welding Device |
| CN202763264U (en) * | 2012-05-29 | 2013-03-06 | 中国海洋石油总公司 | Multi-wire submerged-arc welding machine |
| CN103071899A (en) * | 2013-01-29 | 2013-05-01 | 刘振英 | Twin-wire electrogas welding water-cooled welding torch |
-
2013
- 2013-05-15 CN CN201310180149.8A patent/CN103273169B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55136578A (en) * | 1979-04-13 | 1980-10-24 | Mitsubishi Heavy Ind Ltd | Flux flow preventing device of submerged arc welding |
| EP0224669A2 (en) * | 1985-11-23 | 1987-06-10 | Man Gutehoffnungshütte Gmbh | Device for submerged welding with several thread electrodes ordered side by side or in front and behind |
| US5468295A (en) * | 1993-12-17 | 1995-11-21 | Flame-Spray Industries, Inc. | Apparatus and method for thermal spray coating interior surfaces |
| US6909066B2 (en) * | 2003-07-30 | 2005-06-21 | Edison Welding Institute | Adaptive and synergic fill welding method and apparatus |
| CN101058126A (en) * | 2007-04-13 | 2007-10-24 | 兰州理工大学 | Cold wire submerged-arc welding method and device, control system and control method |
| CN101306488A (en) * | 2007-05-14 | 2008-11-19 | 上海电气电站设备有限公司 | Double arc four wire automatic arc-submerging welder and manufacture method thereof |
| KR20120008053U (en) * | 2011-05-17 | 2012-11-27 | 김충선 | welding Device |
| CN202291780U (en) * | 2011-10-11 | 2012-07-04 | 中国海洋石油总公司 | Machine head of multi-wire submerged arc welding machine |
| CN202356771U (en) * | 2011-12-08 | 2012-08-01 | 中国海洋石油总公司 | Operating machine of multi-wire submerged arc welding machine |
| CN202763264U (en) * | 2012-05-29 | 2013-03-06 | 中国海洋石油总公司 | Multi-wire submerged-arc welding machine |
| CN103071899A (en) * | 2013-01-29 | 2013-05-01 | 刘振英 | Twin-wire electrogas welding water-cooled welding torch |
Non-Patent Citations (2)
| Title |
|---|
| 蒋华雄等: "精密数字控制四丝埋弧焊接***", 《电焊机》, vol. 40, no. 6, 30 June 2010 (2010-06-30), pages 21 - 26 * |
| 蔡东红等: "精密数字控制双丝窄间隙埋弧焊接***", 《电焊机》, vol. 40, no. 2, 28 February 2010 (2010-02-28), pages 16 - 21 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551707A (en) * | 2013-11-14 | 2014-02-05 | 南车长江车辆有限公司 | Method for repairing wagon coupler yoke key |
| CN103551707B (en) * | 2013-11-14 | 2015-05-06 | 南车长江车辆有限公司 | Method for repairing wagon coupler yoke key |
| CN104526115A (en) * | 2014-11-04 | 2015-04-22 | 南方增材科技有限公司 | Electric smelting forming method for nuclear power station pressure vessel shell |
| CN105983741A (en) * | 2015-03-23 | 2016-10-05 | 林肯环球股份有限公司 | Method and system for additive manufacturing using high energy source and hot-wire |
| CN105983741B (en) * | 2015-03-23 | 2020-05-19 | 林肯环球股份有限公司 | Method and system for additive manufacturing using a high energy source and hot wire |
| CN108747133A (en) * | 2018-07-27 | 2018-11-06 | 常州机电职业技术学院 | A kind of welding gun swinging device |
| CN109175604A (en) * | 2018-10-17 | 2019-01-11 | 沈阳鼓风机集团股份有限公司 | A kind of ultrahigh speed overlaying method of ultralow dilution rate |
| CN110788447A (en) * | 2019-11-12 | 2020-02-14 | 南京引力工业焊接技术研究院有限公司 | Multi-power-supply parallel multi-wire efficient arc welding device and application thereof |
| CN111014907A (en) * | 2019-11-18 | 2020-04-17 | 申英强 | Narrow-gap filament matrix type welding gun and welding process |
| CN114211091A (en) * | 2021-12-29 | 2022-03-22 | 南京理工大学 | Efficient MIG electric arc material increase method and device without co-melting pool |
| CN114952189A (en) * | 2022-05-17 | 2022-08-30 | 武汉理工大学 | Multi-wire electric arc additive synchronous blank-making composite rolling forming method for large ring piece |
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Address after: No. 10 A236, No. 10, Zhongxing Road, Beijing Changping District science and Technology Park, A236 Co-patentee after: AMET Inc. Patentee after: AMET WELDING AUTOMATION TECHNOLOGY (BEIJING) CO., LTD. Address before: Diweidunlu Rexburg Idaho No. 355 Co-patentee before: AMET WELDING AUTOMATION TECHNOLOGY (BEIJING) CO., LTD. Patentee before: AMET Inc. |
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