CN105414722A - External nozzle twin-wire co-pool narrow-gap GMAW torch - Google Patents
External nozzle twin-wire co-pool narrow-gap GMAW torch Download PDFInfo
- Publication number
- CN105414722A CN105414722A CN201511019688.9A CN201511019688A CN105414722A CN 105414722 A CN105414722 A CN 105414722A CN 201511019688 A CN201511019688 A CN 201511019688A CN 105414722 A CN105414722 A CN 105414722A
- Authority
- CN
- China
- Prior art keywords
- nozzle
- welding
- gas
- narrow
- 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.)
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- 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
- B23K9/26—Accessories for electrodes, e.g. ignition tips
-
- 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
- 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
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses an external nozzle twin-wire co-pool narrow-gap GMAW (gas metal arc welding) torch, belongs to the technical field of welding, and solves the problems that the conventional twin-wire narrow-gap GMAW torch is complex in structure and poor in welding protection effect. The external nozzle twin-wire co-pool narrow-gap GMAW torch comprises a main welding torch body, two conducting rods, two current contact nozzles, and dual gas sieve plates and gas plugs, wherein the main welding torch body is formed by integrating an upper cover, a gun pipe body and a nozzle into a whole through threaded connection; the gas plugs with holes formed in the radial direction are inserted into the gas inlets of the upper cover; the gas sieve plates with a parallel interval are arranged in the gun pipe body; the guiding rods are inserted into an insulating sleeve; the current contact nozzles are connected to the lower ends of the guiding rods. The external nozzle twin-wire co-pool narrow-gap GMAW torch has the advantages that the holes are punched in the side walls of the gas plugs in the gas inlets, so as to reduce the gas velocity; in the section of gas guiding, the dual gas sieve plates are adopted for further reducing the gas velocity and uniformly mixing gas; both the current contact nozzles point to narrow-gap side walls, so as to promote fusion of the side walls; in the welding process, the nozzle is arranged above a narrow-gap groove, so as to achieve an excellent narrow-gap twin-wire GMAW technology in the state of a common welding pool.
Description
Technical field
The invention belongs to welding technology field, be specifically related to a kind of welding gun of mariages narrow clearance melting electrode gas shielded arc welding.
Background technology
In recent years, along with the development of industrial technology, Welding Structure trends towards maximizing, and therefore the application of slab is more and more extensive, and Welding on Properties of Welding Joint requires also more and more higher.Traditional thick plates General Requirements opens large groove to workpiece, and adopt multi-pass welding, expend wlding many, heat input is high, and can moulding material, toughness causes infringement to a certain degree, in contrast, narrow gap welding connection technology is with the obvious advantage when welding slab, less groove size decreases weld metal loading and reduces cost, fast molten bath setting rate and the input of little heat make weld heat-affected zone narrow, reduce welding residual deformation and residual stress, the toughness of joint is significantly improved, the welding of high quality and high efficiency can be realized, but it needs to adopt special welding equipment and special Type of Welding, ensure that electric arc smooth combustion can not produce the bad problem of groove sidewall fusion in close clearance, to obtain flawless welding point.GMAW has the advantages such as heat input adjustable range is wide, metallurgical process simple, applicable all-position welding, and consider, narrow clearance G MAW method is best suited for actual welding and produces.Narrow clearance G MAW key difficult problem ensures sidewall fusion, proposes multiple method both at home and abroad around this difficult problem, mainly contains and utilize the method such as big current or pulse current, electric arc swing, electric arc rotation, mariages or multifibres.At present, conventional narrow clearance G MAW welding gun, what mostly adopt is all the insertion nozzle (it is inner that nozzle inserts groove) of prolate heaviness, and it has shortcomings: in (1) welding process nozzle easily and sidewall produce and beat arc phenomenon; (2) gas entering into welding bead easily forms turbulent flow, cannot form good protected effect to molten bath; (3) dismantle ignition tip time need first to remove nozzle, therefore not easy to clean and change ignition tip; (4) because nozzle inserts groove inside, the monitoring to welding pool in welding process is hindered.(5) because groove internal heat is concentrated, magnetism servo-electric motor water-cooling must be added to insertion nozzle.
Summary of the invention
The gas that the object of the invention is to enter into groove to solve existing GMAW welding torch easily forms turbulent flow; good protected effect cannot be formed to molten bath and need water cooling plant; baroque problem, and provide a kind of external nozzle mariages congruent melting pond narrow clearance G MAW welding torch.
The narrow clearance G MAW welding torch in external nozzle mariages congruent melting pond of the present invention comprises torch body, two conducting rods, two ignition tips, first air sifter plate, second air sifter plate and vent plug, wherein torch body is by upper cover, gun barrel body and nozzle composition, upper cover and nozzle form the torch body of elongated tubular respectively by the upper surface and lower surface that are threaded onto gun barrel body, the tube wall on gun barrel body top has cannelure, diminish at the caliber of the below gun barrel body of cannelure, the junction that cannelure and gun barrel body caliber diminish forms boss, an insulation trepanning and multiple air admission hole is had upper covering, all vent plug is inserted with in each air admission hole, vent plug be connected with air inlet pipe and on vent plug the perforate direction of pore along the radial direction of vent plug, boss is equipped with the first air sifter plate, second air sifter plate is set in parallel in the top of the first air sifter plate, first air sifter plate and the second air sifter plate all have multiple sieve aperture, insulation sleeve embeds in insulation trepanning, two parallel conducting rods are inserted with in insulation sleeve, ignition tip is connected to the lower end of conducting rod.
Nozzle of the present invention adopts outlet structure (nozzle is placed in above groove), by the protective gas passage of the structural designs such as two air sifter plate filtration, changes gas flowfield and fluidized―bed furnace, meets the protection needs of weld seam.The influence research that current mariages spacing butt welded seam is shaped is ripe, therefore can fix mariages spacing, and significantly simplify welding gun structure, saved welding gun cost of manufacture, during welding, Twin wire arc acts in a molten bath, improves welding efficiency.Adopt bending ignition tip to point to groove both sides, improve sidewall fusion unfavorable condition.
And in order to reduce the turbulence level of gas, the present invention adopts air inlet sidewall perforation vent plug to slow down to induction air flow ratio, at air guiding portion, adopting dual air sifter device, gas can be slowed down further and mix and calmness, the air-flow entering nozzle is more steady, and speed is even.Finally, reach and form laminar flow in relatively short jet expansion, make the stream turbulence of jet expansion less, reach good gas flow pattern.
External nozzle mariages congruent melting pond of the present invention narrow clearance G MAW welding torch comprises following advantage and effect:
1, under the environment of narrow gap, welding gun height is easy to adjust, and part replacement is easy, conveniently can realize multi-pass welding;
2, welding gun sealing is good, has good gas shield effect, avoids being involved in air in welding process;
3, realize the narrow gap double wire welding under the state of congruent melting pond, welding efficiency is high, and welding process is easy to observe, and sidewall fusion is good;
4, welding gun has good insulating properties and electrical and thermal conductivity;
5, because nozzle is positioned at above bevel for welding, the nozzle situation of being heated alleviates, therefore nozzle is without arranging water-cooling structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the narrow clearance G MAW welding torch in external nozzle mariages congruent melting pond of the present invention;
Fig. 2 is the front view of the narrow clearance G MAW welding torch assembling in embodiment external nozzle mariages congruent melting pond;
Fig. 3 is the side view of the narrow clearance G MAW welding torch assembling in embodiment external nozzle mariages congruent melting pond;
Fig. 4 is embodiment application external nozzle mariages congruent melting pond narrow clearance G MAW welding torch real protection gas flow pattern figure;
Fig. 5 is the weld seam side view that the narrow clearance G MAW welding torch in embodiment application external nozzle mariages congruent melting pond obtains.
Detailed description of the invention
Detailed description of the invention one: the narrow clearance G MAW welding torch in present embodiment external nozzle mariages congruent melting pond comprises torch body, two conducting rods 6, two ignition tips 8, first air sifter plate 3-1, second air sifter plate 3-2 and vent plug 4, wherein torch body is by upper cover 1, gun barrel body 9 and nozzle 2 form, upper cover 1 and nozzle 2 form the torch body of elongated tubular respectively by the upper surface and lower surface that are threaded onto gun barrel body 9, the tube wall on gun barrel body 9 top has cannelure, diminish at the caliber of the below gun barrel body 9 of cannelure, the junction that cannelure and gun barrel body 9 caliber diminish forms boss 7, upper cover 1 has an insulation trepanning and multiple air admission hole, vent plug 4 is all inserted with in each air admission hole, vent plug 4 be connected with air inlet pipe and on vent plug 4 the perforate direction of pore 4-1 along the radial direction of vent plug 4, boss 7 is equipped with the first air sifter plate 3-1, second air sifter plate 3-2 is set in parallel in the top of the first air sifter plate 3-1, first air sifter plate 3-1 and the second air sifter plate 3-2 all has multiple sieve aperture 3-3, insulation sleeve 5 embeds in insulation trepanning, two parallel conducting rods 6 are inserted with in insulation sleeve 5, ignition tip 8 is connected to the lower end of conducting rod 6.
Present embodiment considers the welding facilitating multilayer in narrow gap, to ensure in welding process that the parameters such as nozzle and test specimen distance, stem elongation are consistent, so need this narrow clearance G MAW welding torch in nozzle mariages congruent melting pond to be connected with adjusting device, can make mutually to slide between nozzle and conducting rod by slide unit and jockey thereof, reach the object regulating nozzle height.
Detailed description of the invention two: present embodiment and detailed description of the invention one are aluminium alloy unlike the material of upper cover 1 and gun barrel body 9.
Present embodiment adopts aluminum alloy materials can realize the lighting of welding gun.
Detailed description of the invention three: present embodiment and detailed description of the invention one or two are red copper unlike the material of nozzle 2.
Detailed description of the invention four: one of present embodiment and detailed description of the invention one to three are all inserted with welding wire unlike in every root conducting rod 6, and welding wire penetrates in ignition tip 8.
Detailed description of the invention five: present embodiment and detailed description of the invention four unlike two root wires respectively by two independently the source of welding current power.
Detailed description of the invention six: present embodiment is connected by screw thread with air admission hole unlike vent plug 4 with one of detailed description of the invention one to five.
Detailed description of the invention seven: one of present embodiment and detailed description of the invention one to six are bending ignition tip unlike ignition tip 8, and two bending ignition tips point to the sidewall in narrow gap respectively.
Two arcings are in a molten bath in welding process for present embodiment, and two root wires point to narrow gap sidewall respectively through bending ignition tip, promote that sidewall fusion is good.
Detailed description of the invention eight: present embodiment and one of detailed description of the invention one to seven are passed through to be with female connector 15 to be connected with conducting rod 6 unlike ignition tip 8.
Detailed description of the invention nine: one of present embodiment and detailed description of the invention one to eight are 40 ~ 60mm unlike the length of nozzle 2.
Embodiment: the narrow clearance G MAW welding torch in the present embodiment external nozzle mariages congruent melting pond comprises torch body, two conducting rods 6, two ignition tips 8, first air sifter plate 3-1, second air sifter plate 3-2 and vent plug 4, wherein torch body is by upper cover 1, gun barrel body 9 and nozzle 2 form, upper cover 1 and nozzle 2 form the torch body of elongated tubular respectively by the upper surface and lower surface that are threaded onto gun barrel body 9, the tube wall on gun barrel body 9 top has cannelure, diminish at the caliber of the below gun barrel body 9 of cannelure, the junction that cannelure and gun barrel body 9 caliber diminish forms boss 7, upper cover 1 has an insulation trepanning and four air admission holes, vent plug 4 is all inserted with in each air admission hole, vent plug 4 be connected with air inlet pipe and on vent plug 4 the perforate direction of pore 4-1 along the radial direction of vent plug 4, boss 7 is equipped with the first air sifter plate 3-1, second air sifter plate 3-2 is set in parallel in the top of the first air sifter plate 3-1, first air sifter plate 3-1 and the second air sifter plate 3-2 all has multiple sieve aperture 3-3, insulation sleeve 5 embeds in insulation trepanning, two parallel conducting rods 6 are inserted with in insulation sleeve 5, conducting rod 6 is connected with being with female connector 15 with ignition tip 8, the mouth mouth of ignition tip 8 is exposed at nozzle 2 outside.
The present embodiment nozzle height regulates and controls by regulating slide unit 10, this adjustment slide unit 10 is made up of leading screw 11 and slide block 12 mechanism, by connecting rod 13, slide block is connected with torch body simultaneously, moving up and down of slide block 12 can be realized by rotating top knob 14, and then complete the adjustment of nozzle 2 apart from height between narrow gap test specimen 17.
For convenience of the assembling of welding gun internal part, dismounting and follow-up maintain and replace, welding gun adopts articulated structure, and welding gun upper cover 1 is connected with gun barrel body 9 by screw thread with nozzle 2, and the internal diameter of gun barrel body 9 lower part is identical with nozzle 2 internal diameter.In order to the lighting of welding gun, welding gun upper cover 1 and gun barrel body 9 adopt aluminum alloy materials, and consider the thermal accumlation in GMAW welding process and spattering problem, nozzle 2 adopts red copper material to make.
Power line 16 is connected with conducting block 20, and conducting block 20 is embedded in brace table 18 inside and exposes at brace table 18 lower surface, and conducting rod 6 and conducting block 20 are threaded connection.Two ignition tips 8 adopt the curve form pointing to sidewall.Be separated by with insulation sleeve (polytetrafluoroethylene (PTFE)) 5 between torch body and conducting rod 6 and between two conducting rods 6.During welding job, two root wires are sent into from two wire-feeding pipes 19 respectively, then pass in conducting rod 6 with ignition tip 8, two root wires have respectively two independently the source of welding current power.
Air inlet vent plug 4 is connected with welding gun upper cover 1 screw thread, for reducing the turbulence level of gas, in the perforation of air inlet vent plug 4 sidewall, making welding gun induction part be radial air inlet mode, can slow down after making gas enter welding gun from air admission hole; Secondly, at air guiding portion, because the gas ejected from narrow and small vent plug hole still has larger turbulence level, but the turbulence level of nozzle is entered in order to reduce air-flow, adopt dual air sifter (the first air sifter plate 3-1 and the second air sifter plate 3-2) at air guiding portion, reduce the radial velocity component of air-flow particle, gas can be slowed down further and mix and calmness, make the air-flow entering nozzle 2 more steady, speed is even; Finally; for jet expansion; due to the deceleration of air inlet vent plug 4 part and the mixing of the dual air sifter of air guiding portion and sedation; make the stream turbulence entering jet expansion less; thus laminar flow is formed in relatively short jet expansion; reach good gas flow pattern, and then have good protected effect to narrow gap welding termination process.
The present embodiment is the protected effect of the narrow clearance G MAW welding torch in the described external nozzle mariages congruent melting pond of inspection; by dyeing to protective gas; observe gaseous state out in torch neck; protected effect is judged qualitatively; for more realistic welding condition and be convenient to observe; by test specimen groove in transparent acrylic board simulation actual welding process, the principle of protective gas dyeing: pass into through dried gas and TiCl is housed
4flask, the micro-moisture in gas and TiCl
4reaction, generates the TiO of white
2particle; along with air-flow flows out from nozzle, can run into the more juicy in air, there is strong change in the state of air-flow in time occurring that turbulent flow is mixed into air; therefore the flow regime by observing nozzle ejection gas judges the effect of gas shield, and its reaction equation is as follows:
TiCl
4+2H
2O→TiO
2+4HCl
As shown in Figure 4, visible gas flow pattern is good for result of the test, enters in the cut of narrow gap and covers top bottom groove well, illustrates to protect gas to be covered in weld seam upper surface and then form good protection to it in welding process.
For ensureing actual welding quality, in the U-shaped groove of the narrow gap 80mm degree of depth, under gas flow 50L/min, nozzle and the condition of test specimen distance 15mm, carry out soldering test, gained weld seam is bright silvery white, as shown in Figure 5, illustrates that gas shield is respond well.
Claims (9)
1. the narrow clearance G MAW welding torch in external nozzle mariages congruent melting pond, it is characterized in that this narrow clearance G MAW welding torch in external nozzle mariages congruent melting pond comprises torch body, two conducting rods (6), two ignition tips (8), first air sifter plate (3-1), second air sifter plate (3-2) and vent plug (4), wherein torch body is by upper cover (1), gun barrel body (9) and nozzle (2) composition, upper cover (1) and nozzle (2) form the torch body of elongated tubular respectively by the upper surface and lower surface that are threaded onto gun barrel body (9), the tube wall on gun barrel body (9) top has cannelure, diminish at the caliber of below gun barrel body (9) of cannelure, the junction that cannelure and gun barrel body (9) caliber diminish forms boss (7), upper cover (1) has an insulation trepanning and multiple air admission hole, vent plug (4) is all inserted with in each air admission hole, vent plug (4) be connected with air inlet pipe and the perforate direction of the upper pore (4-1) of vent plug (4) along the radial direction of vent plug (4), boss (7) is equipped with the first air sifter plate (3-1), second air sifter plate (3-2) is set in parallel in the top of the first air sifter plate (3-1), first air sifter plate (3-1) and the second air sifter plate (3-2) all have multiple sieve aperture (3-3), insulation sleeve (5) embeds in insulation trepanning, two parallel conducting rods (6) are inserted with in insulation sleeve (5), ignition tip (8) is connected to the lower end of conducting rod (6).
2. the narrow clearance G MAW welding torch in a kind of external nozzle mariages congruent melting pond according to claim 1, is characterized in that the material of upper cover (1) and gun barrel body (9) is aluminium alloy.
3. the narrow clearance G MAW welding torch in a kind of external nozzle mariages congruent melting pond according to claim 1, is characterized in that the material of nozzle (2) is red copper.
4. the narrow clearance G MAW welding torch in a kind of external nozzle mariages congruent melting pond according to claim 1, it is characterized in that all being inserted with welding wire in every root conducting rod (6), welding wire penetrates in ignition tip 8.
5. the narrow clearance G MAW welding torch in a kind of external nozzle mariages congruent melting pond according to claim 4, it is characterized in that two root wires respectively by two independently the source of welding current power.
6. the narrow clearance G MAW welding torch in a kind of external nozzle mariages congruent melting pond according to claim 1, is characterized in that vent plug (4) is connected by screw thread with air admission hole.
7. the narrow clearance G MAW welding torch in a kind of external nozzle mariages congruent melting pond according to claim 1, it is characterized in that ignition tip (8) is for bending ignition tip, two bending ignition tips point to the sidewall in narrow gap respectively.
8. the narrow clearance G MAW welding torch in a kind of external nozzle mariages congruent melting pond according to claim 1, is characterized in that ignition tip (8) is connected with conducting rod (6) by the female connector of band (15).
9. the narrow clearance G MAW welding torch in a kind of external nozzle mariages congruent melting pond according to claim 1, is characterized in that nozzle (2) is placed in above groove, and the length of nozzle (2) is 40 ~ 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019688.9A CN105414722A (en) | 2015-12-29 | 2015-12-29 | External nozzle twin-wire co-pool narrow-gap GMAW torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019688.9A CN105414722A (en) | 2015-12-29 | 2015-12-29 | External nozzle twin-wire co-pool narrow-gap GMAW torch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105414722A true CN105414722A (en) | 2016-03-23 |
Family
ID=55493499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511019688.9A Pending CN105414722A (en) | 2015-12-29 | 2015-12-29 | External nozzle twin-wire co-pool narrow-gap GMAW torch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105414722A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689849A (en) * | 2016-03-28 | 2016-06-22 | 武汉纳瑞格智能设备有限公司 | Gas distributing device for rear-mounted narrow gas/ultra-narrow gap gas shield welding gun |
| CN106270968A (en) * | 2016-10-26 | 2017-01-04 | 哈尔滨工业大学 | A kind of external nozzle mariages non-co-molten bath narrow clearance G MAW welding torch |
| CN108161297A (en) * | 2017-12-27 | 2018-06-15 | 大连理工大学 | A kind of welding gun system and welding method suitable for cut deal welding |
| 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 |
| CN111496358A (en) * | 2020-05-30 | 2020-08-07 | 山东平云智能装备有限公司 | Narrow-gap tungsten electrode argon arc welding gun |
| CN112872562A (en) * | 2020-12-23 | 2021-06-01 | 苏州弧瀚科技有限公司 | Narrow gap welding gun |
| CN114054898A (en) * | 2020-08-10 | 2022-02-18 | 山东大学 | Low-heat-input additive preparation spray gun based on arc heat source, preparation device and method |
| CN115709327A (en) * | 2022-11-30 | 2023-02-24 | 哈尔滨工业大学 | Smart welding gun suitable for repairing narrow-gap welding defects |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07204854A (en) * | 1994-01-11 | 1995-08-08 | Nippon Steel Corp | High speed gas shield arc welding equipment and method therefor |
| CN101323045A (en) * | 2008-07-17 | 2008-12-17 | 西北工业大学 | Welding gun for narrow cap gas-shield metal arc welding |
| CN101890560A (en) * | 2010-07-22 | 2010-11-24 | 昆山华恒工程技术中心有限公司 | Narrow-clearance heating wire TIG welding gun |
| CN102430846A (en) * | 2011-10-21 | 2012-05-02 | 哈尔滨工业大学 | Bent conducting nozzle type twin-wire narrow-gap MIG/MAG (metal inert gas/metal active gas) welding torch |
| CN102476233A (en) * | 2010-11-23 | 2012-05-30 | 苏州工业园区华焊科技有限公司 | Welding gun for narrow-gap double-wire MIG/MAG (Metal Inert Gas/Metal Active Gas) welding |
| CN202846007U (en) * | 2012-06-29 | 2013-04-03 | 中色十二冶金建设有限公司 | Narrow gap magnetic injection gun (MIG) welding gun special for aluminum busbar weld |
| CN103658942A (en) * | 2013-12-31 | 2014-03-26 | 哈尔滨工业大学 | Oscillating-arc narrow-gap MIG/MAG (Metal Inert Gas/Metal Active Gas) welding torch |
-
2015
- 2015-12-29 CN CN201511019688.9A patent/CN105414722A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07204854A (en) * | 1994-01-11 | 1995-08-08 | Nippon Steel Corp | High speed gas shield arc welding equipment and method therefor |
| CN101323045A (en) * | 2008-07-17 | 2008-12-17 | 西北工业大学 | Welding gun for narrow cap gas-shield metal arc welding |
| CN101890560A (en) * | 2010-07-22 | 2010-11-24 | 昆山华恒工程技术中心有限公司 | Narrow-clearance heating wire TIG welding gun |
| CN102476233A (en) * | 2010-11-23 | 2012-05-30 | 苏州工业园区华焊科技有限公司 | Welding gun for narrow-gap double-wire MIG/MAG (Metal Inert Gas/Metal Active Gas) welding |
| CN102430846A (en) * | 2011-10-21 | 2012-05-02 | 哈尔滨工业大学 | Bent conducting nozzle type twin-wire narrow-gap MIG/MAG (metal inert gas/metal active gas) welding torch |
| CN202846007U (en) * | 2012-06-29 | 2013-04-03 | 中色十二冶金建设有限公司 | Narrow gap magnetic injection gun (MIG) welding gun special for aluminum busbar weld |
| CN103658942A (en) * | 2013-12-31 | 2014-03-26 | 哈尔滨工业大学 | Oscillating-arc narrow-gap MIG/MAG (Metal Inert Gas/Metal Active Gas) welding torch |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689849A (en) * | 2016-03-28 | 2016-06-22 | 武汉纳瑞格智能设备有限公司 | Gas distributing device for rear-mounted narrow gas/ultra-narrow gap gas shield welding gun |
| CN106270968A (en) * | 2016-10-26 | 2017-01-04 | 哈尔滨工业大学 | A kind of external nozzle mariages non-co-molten bath narrow clearance G MAW welding torch |
| CN108161297A (en) * | 2017-12-27 | 2018-06-15 | 大连理工大学 | A kind of welding gun system and welding method suitable for cut deal welding |
| 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 |
| CN111496358A (en) * | 2020-05-30 | 2020-08-07 | 山东平云智能装备有限公司 | Narrow-gap tungsten electrode argon arc welding gun |
| CN114054898A (en) * | 2020-08-10 | 2022-02-18 | 山东大学 | Low-heat-input additive preparation spray gun based on arc heat source, preparation device and method |
| CN112872562A (en) * | 2020-12-23 | 2021-06-01 | 苏州弧瀚科技有限公司 | Narrow gap welding gun |
| CN115709327A (en) * | 2022-11-30 | 2023-02-24 | 哈尔滨工业大学 | Smart welding gun suitable for repairing narrow-gap welding defects |
| CN115709327B (en) * | 2022-11-30 | 2024-01-26 | 哈尔滨工业大学 | Smart welding gun suitable for repairing narrow-gap welding defects |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105414722A (en) | External nozzle twin-wire co-pool narrow-gap GMAW torch | |
| CN106270968A (en) | A kind of external nozzle mariages non-co-molten bath narrow clearance G MAW welding torch | |
| CN202498295U (en) | Local gas protection dragging cover used in titanium alloy welding | |
| CN104772552B (en) | A kind of three gas shield indirect arcs welding method, device, overlaying method and narrow gap welding method | |
| CN102303178B (en) | Semi-automatic gas shield welding construction technology for aluminum conductors | |
| CN202461816U (en) | Combined welding gun | |
| CN101745726A (en) | Twin-wire melting pole gas shielded welding torch and welding method | |
| CN105983774B (en) | A kind of copper-clad tungsten electrode water cooling TIG welding guns based on cathode pinch effect | |
| CN104889527A (en) | Pipeline steel pipe welding technology | |
| CN202951963U (en) | Miniature gas-cooled type tungsten inert gas (TIG) small welding gun | |
| CN206343785U (en) | A kind of high powered plasma arc and melt pole electrical arc are combined welding gun | |
| CN203918197U (en) | A kind of CO 2gas protective welding gun nozzle | |
| CN101085489A (en) | Cold air type argon-arc welding gun | |
| CN109719373A (en) | Mariages spacing is adjustable narrow clearance melting electrode gas protective welding gun | |
| CN106735786A (en) | A kind of integrated lock effect of holes TIG deep penetration welding welding guns | |
| CN203765153U (en) | Gas shielded welding gun for thick wire high-speed automatic welding | |
| CN201195224Y (en) | Manual direct current argon tungsten-arc welding air cooling type welding gun | |
| CN205817050U (en) | Water-cooling type CO2 gun | |
| CN207695828U (en) | A kind of double tungsten electrode arc coupling TIG weldering devices | |
| CN206550482U (en) | A kind of integrated lock effect of holes TIG deep penetration welding welding guns | |
| CN101708567A (en) | Water cooled welding torch | |
| CN108672897A (en) | A kind of gas-shield welding method of cyclone state electric arc | |
| CN112872562B (en) | Narrow gap welding gun | |
| CN108637440A (en) | A kind of ultra-narrow gap MAG/MIG automatic welding gun metallic nozzles with ignition tip insulation | |
| CN201537766U (en) | Water-cooling welding gun |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |