CN108381013B - Narrow-gap TIG welding gun - Google Patents
Narrow-gap TIG welding gun Download PDFInfo
- Publication number
- CN108381013B CN108381013B CN201810400846.2A CN201810400846A CN108381013B CN 108381013 B CN108381013 B CN 108381013B CN 201810400846 A CN201810400846 A CN 201810400846A CN 108381013 B CN108381013 B CN 108381013B
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- Prior art keywords
- welding gun
- gas hood
- main body
- welding
- gun main
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- 238000003466 welding Methods 0.000 title claims abstract description 142
- 238000001816 cooling Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 21
- 229910052721 tungsten Inorganic materials 0.000 claims description 21
- 239000010937 tungsten Substances 0.000 claims description 21
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 70
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000919 ceramic Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 229910052786 argon Inorganic materials 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012300 argon atmosphere Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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
- B23K9/24—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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-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
- B23K9/28—Supporting devices for electrodes
- B23K9/285—Cooled electrode holders
-
- 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
-
- 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 a narrow-gap TIG welding gun, which is different from the traditional TIG welding gun, and a left gas hood and a right gas hood are respectively arranged at two sides of a welding gun main body, so that the narrow-gap TIG welding gun is perpendicular to the width direction, has small size limitation, can have larger protection space, and is beneficial to improving the argon protection effect due to the double gas hood design. The cooling structure is arranged in the welding gun main body, and the two insulating blocks for respectively isolating the welding gun main body and the left gas hood and the welding gun main body and the right gas hood are arranged, so that the charging of the gas hood can be avoided, the charging area is reduced to the minimum, a ceramic insulating layer is not required to be sprayed on the surface of the whole welding gun, and the increase of the width of the welding gun is avoided. In general, under the condition of inheriting the advantages of high stability of the traditional TIG welding arc and the like, the welding gun is compact in layout, integrates the welding gun and water cooling, is convenient to integrally install in an automatic welding machine, can greatly reduce groove gaps, further greatly saves welding materials and electric energy consumption, and improves welding productivity.
Description
Technical Field
The invention relates to a welding gun, in particular to a TIG welding gun.
Background
A Tungsten Inert Gas (TIG) welding gun (Tungsten Inert Gas Welding, TIG welding gun) is used for clamping a tungsten electrode, conducting welding current, and delivering and spraying shielding gas. The structure of the existing water-cooled TIG welding gun is shown in fig. 1. The structure mainly comprises a tungsten electrode 1, a ceramic nozzle 2, an air guide sleeve 3, an electrode chuck 4, a gun body 5, an electrode cap 6, an air inlet pipe 7, a cooling water pipe 8, a control switch 9 and a welding gun handle 10. During welding, when the current exceeds 150A in the middle of the argon atmosphere, the cooling water pipe 8 is adopted to realize the cooling of the gun body, the air inlet pipe 7 transmits the gas to the ceramic nozzle 2 to enable the protective gas to be sprayed out, and the effect of isolating air to protect a molten pool is achieved in the welding process. One end of the electrode holder 4 is connected with a power supply through a wire to conduct welding current, and the other end is connected with the tungsten electrode 1. And after the power is on, arc heat is generated between the tungsten electrode and the weldment for welding.
With the rapid development of intelligent manufacturing industry in China, the wall thickness of a large structure is larger and larger, for example, a nuclear power reactor of 1000 MW level, and the wall thickness of a pressure container is up to 250 mm; and the thickness of the rotor is up to 200 mm or more. The welding gun shown in fig. 1 is adopted for backing welding, and as a traditional TIG welding gun, a coaxial gas protection design is adopted, a gun body 5 is positioned in the middle of a ceramic nozzle 2, and during welding, tungsten level and a molten pool are positioned in the middle of argon atmosphere. In order to ensure good heat dissipation and achieve accessibility of the welding gun, a Y-shaped groove is required to be formed for welding, the angle of the groove needs to be 70 degrees, the welding line is wide and deep, the filling metal amount is increased, the welding material and the energy consumption are increased, the welding efficiency is reduced, and meanwhile, the phenomenon that the side wall is not fused can occur, so that the quality of the welding line is affected. It is evident that conventional welding methods have failed to meet the requirements for the fabrication of these components.
Disclosure of Invention
The invention overcomes the defects of the prior art, and provides the narrow-gap TIG welding gun which can ensure that the welding gun still has good heat radiation under a narrow and deep groove, can realize the accessibility of the welding gun, reduces the consumption of welding materials and energy, and improves the welding efficiency and the welding quality.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a narrow clearance TIG welder, its characterized in that includes the welder main part that is equipped with cooling structure, locates respectively left gas hood and right gas hood of welder main part both sides, and keep apart respectively welder main part and left gas hood, welder main part and right gas hood's two insulating blocks, welder main part electrically conductive is connected with the tungsten utmost point that stretches out the bottom.
Preferably, the cooling structure is V-shaped and comprises two cooling pipes gradually converging towards the bottom end.
Preferably, the left air cover and the right air cover are respectively provided with a turning, and are obliquely arranged parallel to the cooling pipes at positions corresponding to the cooling pipes.
Preferably, the left gas cover is connected with the welding gun main body in an adjustable mode through the corresponding insulating block, and the right gas cover is connected with the welding gun main body in an adjustable mode through the corresponding insulating block.
Preferably, the welding gun main body is provided with a connecting end connected with the insulating block, a strip-shaped limiting hole extending towards the direction corresponding to the left air cover or the right air cover is formed in the connecting end, a limiting block which is slidably inserted into the limiting hole is arranged at the bottom end of the insulating block, and a threaded connecting piece which can be matched and fixed to the limiting hole is arranged on the insulating block.
Preferably, the air inlet of the left air cover, the air inlet of the right air cover and the water inlet of the cooling structure are all provided with airtight sealing structures.
Preferably, the welding gun main body is a brass conductor.
Preferably, filter plates for buffering air flow are respectively arranged in the left air cover and the right air cover.
Preferably, the welding gun is of a flat structure, and the thickness of the welding gun is 8-mm mm.
The invention has the beneficial effects that:
1. the narrow-gap TIG welding gun is different from the traditional TIG welding gun, and the left gas hood and the right gas hood are respectively arranged on two sides of the welding gun main body, so that the narrow-gap TIG welding gun is perpendicular to the width direction, has small size limitation, can have larger protection space, and is beneficial to improving the argon protection effect due to the double gas hood design. The cooling structure is arranged in the welding gun main body, and the two insulating blocks for respectively isolating the welding gun main body and the left gas hood and the welding gun main body and the right gas hood are arranged, so that the charging of the gas hood can be avoided, the charging area is reduced to the minimum, a ceramic insulating layer is not required to be sprayed on the surface of the whole welding gun, and the increase of the width of the welding gun is avoided. In general, under the condition of inheriting the advantages of high stability of the traditional TIG welding arc and the like, the welding gun is compact in layout, integrates the welding gun and water cooling, is convenient to integrally install in an automatic welding machine, can greatly reduce groove gaps, further greatly saves welding materials and electric energy consumption, and improves welding productivity.
2. The cooling structure is designed into a V shape and comprises two cooling pipes which are gradually gathered towards the bottom end, so that the width of the gun body can be reduced, the gun body can easily penetrate into the bottom of the welding gun, and the gun body is closer to the tungsten electrode, so that a better cooling effect is achieved. The welding gun can improve the reliability of long-time working, and the thick plate welding joint which has no splashing, no slag inclusion, less welding defects and high welding seam strength and toughness is obtained.
3. The left gas hood and the right gas hood can be respectively provided with turning, so that the gas flow is buffered, better protection effect is achieved, particularly, the filter plates are respectively arranged in the left gas hood and the right gas hood, in addition, the left gas hood and the right gas hood can respectively extend in an inclined manner at the position corresponding to the cooling pipe in parallel with the cooling pipe, and therefore the gas hood is better close to the bottom of the welding gun, the tungsten electrode is protected, and the protection effect is improved.
4. The two insulating blocks are respectively and adjustably connected with the left gas hood and the welding gun main body, and the right gas hood and the welding gun main body. Because the gas has a flow field and viscosity, laminar flow can be formed only under certain conditions, and two gases are generated during welding after the welding gun adopts the double gas covers. Turbulence is easily created when two gas flows meet at different flow rates or directions. Therefore, the relative positions of the left gas cover and the right gas cover can be adjusted by the design, the flow direction of two gas flows can be adjusted, and the laminar flow protective gas is formed, so that the improvement of the protective effect and the improvement of the welding quality are very facilitated.
5. The welding gun main body is provided with a connecting end connected with the insulating block, the connecting end is provided with a strip-shaped limiting hole extending towards the direction corresponding to the left gas hood or the right gas hood, the bottom end of the insulating block is provided with a limiting block which is slidably inserted into the limiting hole, and the insulating block is provided with a threaded connecting piece which can be matched and fixed in the limiting hole, so that the distance between the two gas hoods and the tungsten electrode can be conveniently adjusted, and even if two gas flows are adjusted to the optimal protection position, the insulating block is limited by the matching of the limiting block and the limiting hole, and the relative positions of the left gas hood, the right gas hood and the welding gun main body can be better ensured.
6. The left gas hood gas inlet, the right gas hood gas inlet and the water inlet of the cooling structure are all provided with airtight sealing structures, so that good tightness can be ensured, and the welding gun further integrates a welding gun main body, water cooling and airtight, and is more convenient to apply.
7. The main body of the welding gun is a brass electric conductor, has higher heat conduction and electric conductivity, and has good mechanical property and corrosion resistance, thereby being beneficial to prolonging the service life and improving the welding quality.
8. The welding gun is designed to be of a flat structure, the thickness is 8 mm-9 mm, so that narrow-gap welding is facilitated, the welding efficiency is improved, and if the gun body is too small in size, the gun body groove wall and the gun body hole wall are too thin, and the strength is insufficient; and if the gun body is oversized, the gap width of the narrow gap groove is increased.
9. The narrow-gap TIG welding gun can realize thick plate welding with a groove width of 10mm and a narrow gap, and compared with the traditional TIG, the production efficiency can be improved by 40-50%, and the cost can be reduced by 25-35%.
Drawings
FIG. 1 is a schematic diagram of a conventional water-cooled TIG welding gun;
FIG. 2 is a half sectional view of a preferred embodiment of the present invention;
FIG. 3 is a schematic view of a torch body in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic view of a gas enclosure (right gas enclosure or left gas enclosure) in a preferred embodiment of the invention;
FIG. 5 is a schematic view of an insulating block in a preferred embodiment of the invention;
wherein:
1. tungsten electrode, 2, ceramic nozzle, 3, air guide sleeve, 4, electrode chuck, 5, gun body, 6, electrode cap, 7, air inlet pipe, 8, cooling water pipe, 9, control switch, 10, welding gun handle;
11. the welding gun comprises a welding gun main body, 112, a connecting end, 12, a left gas hood, 122, a left gas hood body, 126, a right corner, 13, a right gas hood, 132, a right gas hood body, 134, a right gas hood, 136, a right corner, 14, an insulating block, 142, a first part, 144, a second part, 16, a water inlet, 17, a water outlet, 18, a wire connection port, 19, a limiting hole, 20, a limiting block, 21, a mounting hole, 22, a mounting through hole, 23, a cooling structure, 232, a water inlet pipe, 234, a water outlet pipe, 24 and a tungsten electrode.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 2-5, a narrow gap TIG welding gun comprises a welding gun main body 11 provided with a cooling structure 23, a left gas hood 12 and a right gas hood 13 respectively arranged at two sides of the welding gun main body 11, and two insulating blocks 14 respectively isolating the welding gun main body 11 and the left gas hood 12, the welding gun main body 11 and the right gas hood 13, wherein a wire connection port 18 is arranged on the welding gun main body 11, and a tungsten electrode 24 extending out of the bottom end is connected in a conductive manner.
Specifically, the welding gun main body 11 is provided with a shoulder and is connected with the cooling structure 23 in a downward manner, the cooling structure 23 is in a V shape, and comprises two cooling pipes which are gradually gathered towards the bottom end and communicated with each other, namely a water inlet pipe 232 and a water outlet pipe 234, and a water inlet 16 of the water inlet pipe 232 and a water outlet 17 of the water outlet pipe 234 are respectively arranged at two shoulders of the welding gun main body 11. Because the narrow-gap TIG welding gun is designed for thick plate weldments, the tungsten electrode 24 and the welding gun main body 11 can be guaranteed to have good water cooling effect only by a good water cooling loop with large current, and the tungsten electrode 24 and the welding gun main body 11 are prevented from being burnt out due to overhigh local temperature rise in the welding process. As shown in fig. 3, the cooling structure 23 of the present embodiment adopts a V shape, and shortens the distance between the water inlet pipe 232 and the water outlet pipe 234 as small as possible, thereby reducing the width of the welding gun main body 11. So that the shielding gas effectively covers the tungsten electrode 24 and the weld puddle.
The left air cap 12 includes a left air cap body 122 and a left air cap (not shown), and the right air cap 13 includes a right air cap body 132 and a right air cap 134. The left and right air hoods 122 and 132 are also provided with filter plates, respectively, to cushion the air flow. Further, the left and right hoods 12, 13 are provided with right angle turns 126, 136, respectively, and are disposed obliquely parallel to the cooling pipes at positions corresponding to the cooling pipes.
One insulating block 14 adjustably connects the left gas cap 12 with the torch body 11, and the other insulating block 14 adjustably connects the right gas cap 13 with the torch body 11. Specifically, the two shoulders of the welding gun main body 11 extend toward to form connection ends 112 connected with the insulation blocks 14 at each end, the connection ends 112 are provided with elongated limiting holes 19 extending toward the direction corresponding to the left air cover 12 or the right air cover 13, the bottom ends of the insulation blocks 14 are provided with limiting blocks 20 slidably inserted into the limiting holes 19, and the insulation blocks 14 are provided with threaded connectors (not shown) capable of being matched and fixed in the limiting holes 19. More specifically, the insulating block 14 includes a block-shaped first portion 142 and a second portion 144 that are connected in an end-to-end overlap manner, where the side surface of the first portion 142 is provided with a mounting hole 21 so as to be fixed to the corresponding air cap (the left air cap 12 or the right air cap 13), the stopper 20 is provided at the lower end of the second portion 144, and the second portion 144 is provided with two mounting through holes 22 respectively located at two sides of the stopper 20, so that the stopper can be connected to the stopper hole 19 on the connecting end 112 of the welding gun main body 11 by a threaded connection such as a bolt. In the present embodiment, the insulating block 14 is a nylon block, but other insulating blocks 14 may be used, and the present invention is not limited thereto.
When the insulating block 14 is electrified, only the main body 11 of the welding gun is electrified, and the rest part of the welding gun is not electrified, so that a good insulating effect is achieved. And the distance between the left and right gas covers 12, 13 and the tungsten electrode 24 is conveniently adjusted to achieve the optimal gas protection position.
In addition, the air inlet of the left air hood 12, the air inlet of the right air hood 13, and the water inlet 16 of the cooling structure 23 are provided with airtight sealing structures. The welding gun provided by the invention integrates the main body 11, water cooling and air tightness, and is more convenient to apply. For the present embodiment, the water pipe, the water inlet 16, the water outlet 17, the air pipe, the left air cover 12 and the right air cover 13 are all connected by pipe screw joints, the left air cover 122 and the left air cover (not shown), the right air cover 132 and the right air cover 134 are respectively connected by a plurality of screws, so as to ensure good tightness.
The torch body 11 is a brass conductor. Has higher heat conduction and electric conductivity, good mechanical property and corrosion resistance, and is beneficial to prolonging the service life and improving the welding quality.
The welding gun is of a flat structure, the thickness is 8 mm-9 mm, and the main body strength is also considered under the condition of reducing the width of the main body 11 of the welding gun, so that narrow-gap welding is facilitated, and the welding efficiency is improved.
A narrow-gap TIG welding gun of the preferred embodiment of the invention is installed by adopting a WSE-315 welding machine, a build-up welding experiment is carried out on No. 45 steel, and welding design parameters are as follows: the left and right gas hoods 12, 13 are respectively 9 mm-12 mm apart from the steel plate when the wires are not filled, and the extension length of the tungsten electrode 24 is as follows: 3-4mm; current flow: 300A; shielding gas flow rate: 25L/min, welding speed: 0.36m/min. The result proves that the narrow-gap welding gun can still stably weld under the condition of 300A high current. In the welding process, the electric arc is stable to burn, no splashing exists, the gas protection effect is good, the welding seam is silvery white, and the welding seam is attractive in appearance.
In the above preferred embodiment of the present invention, the welding gun body 11 and the tungsten electrode 24 are also connected by screws, and the bolts and screws used in the welding gun structure are standard components.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (4)
1. The narrow-gap TIG welding gun is characterized by comprising a welding gun main body provided with a cooling structure, a left gas hood and a right gas hood which are respectively arranged at two sides of the welding gun main body, and two insulating blocks which respectively isolate the welding gun main body from the left gas hood, the welding gun main body and the right gas hood, wherein the welding gun main body is electrically connected with a tungsten electrode extending out of the bottom end;
the cooling structure is V-shaped and comprises two cooling pipes gradually converging towards the bottom end;
the left gas hood and the right gas hood are respectively provided with a turning, and are obliquely arranged parallel to the cooling pipes at positions corresponding to the cooling pipes;
the left gas hood is connected with the welding gun main body in an adjustable mode through the corresponding insulating block, and the right gas hood is connected with the welding gun main body in an adjustable mode through the corresponding insulating block;
the welding gun comprises a welding gun main body, a left gas hood and a right gas hood, wherein the welding gun main body is provided with a connecting end connected with the insulating block, a strip-shaped limiting hole extending towards the direction corresponding to the left gas hood or the right gas hood is formed in the connecting end, a limiting block which is slidably inserted into the limiting hole is arranged at the bottom end of the insulating block, and a threaded connecting piece which can be matched and fixed in the limiting hole is arranged on the insulating block;
the insulating block comprises a block-shaped first part and a second part which are connected end to end in a lap joint mode, a mounting hole is formed in the side face of the first part so as to be fixed with the left gas hood or the right gas hood, the limiting block is arranged at the lower end of the second part, two mounting through holes are formed in the second part and are respectively located at two sides of the limiting block, and the two mounting through holes are connected with the limiting holes in the connecting end of the welding gun main body through threaded connecting pieces;
the left gas hood and the right gas hood are respectively provided with a filter plate for buffering air flow.
2. The narrow gap TIG welding gun of claim 1, wherein the air inlet of the left air hood, the air inlet of the right air hood, and the water inlet of the cooling structure are each provided with an airtight seal structure.
3. The narrow gap TIG welding torch of claim 1 wherein the torch body is a brass electrical conductor.
4. The narrow gap TIG welding gun according to claim 1, wherein the welding gun is of a flat structure and has a thickness of 8-9 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810400846.2A CN108381013B (en) | 2018-04-28 | 2018-04-28 | Narrow-gap TIG welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810400846.2A CN108381013B (en) | 2018-04-28 | 2018-04-28 | Narrow-gap TIG welding gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108381013A CN108381013A (en) | 2018-08-10 |
| CN108381013B true CN108381013B (en) | 2024-03-29 |
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ID=63065213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810400846.2A Active CN108381013B (en) | 2018-04-28 | 2018-04-28 | Narrow-gap TIG welding gun |
Country Status (1)
| Country | Link |
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| CN (1) | CN108381013B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262117B (en) * | 2018-10-17 | 2023-12-22 | 广东福维德焊接股份有限公司 | High-efficient refrigerated lockhole effect TIG deep penetration welding welder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1451913A (en) * | 1973-09-25 | 1976-10-06 | Clarke Chapman Ltd | Arc welding torch |
| JP2006136938A (en) * | 2004-10-13 | 2006-06-01 | Babcock Hitachi Kk | Non-consumable electrode welding torch and welding head with the head |
| CN201645011U (en) * | 2010-04-28 | 2010-11-24 | 首钢总公司 | Welding gun for narrow-gap gas shielded welding |
| CN102357722A (en) * | 2011-10-26 | 2012-02-22 | 上海交通大学 | Combined multi-parameter adjustable narrow-gap TIG (Tungsten Inert Gas) welding torch |
| CN104475943A (en) * | 2014-12-22 | 2015-04-01 | 威海石岛重工有限公司 | Small-diameter inner wall-surfacing torch head |
| CN105364274A (en) * | 2015-12-14 | 2016-03-02 | 西安石油大学 | Water cooling type insulating solid wall for narrow-gap TIG (Tungsten Inert gas Welding) |
| CN208116975U (en) * | 2018-04-28 | 2018-11-20 | 沈阳工学院 | narrow gap TIG welding gun |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0402951D0 (en) * | 2004-02-11 | 2004-03-17 | Rolls Royce Plc | A welding torch and shield |
-
2018
- 2018-04-28 CN CN201810400846.2A patent/CN108381013B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1451913A (en) * | 1973-09-25 | 1976-10-06 | Clarke Chapman Ltd | Arc welding torch |
| JP2006136938A (en) * | 2004-10-13 | 2006-06-01 | Babcock Hitachi Kk | Non-consumable electrode welding torch and welding head with the head |
| CN201645011U (en) * | 2010-04-28 | 2010-11-24 | 首钢总公司 | Welding gun for narrow-gap gas shielded welding |
| CN102357722A (en) * | 2011-10-26 | 2012-02-22 | 上海交通大学 | Combined multi-parameter adjustable narrow-gap TIG (Tungsten Inert Gas) welding torch |
| CN104475943A (en) * | 2014-12-22 | 2015-04-01 | 威海石岛重工有限公司 | Small-diameter inner wall-surfacing torch head |
| CN105364274A (en) * | 2015-12-14 | 2016-03-02 | 西安石油大学 | Water cooling type insulating solid wall for narrow-gap TIG (Tungsten Inert gas Welding) |
| CN208116975U (en) * | 2018-04-28 | 2018-11-20 | 沈阳工学院 | narrow gap TIG welding gun |
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| Publication number | Publication date |
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| CN108381013A (en) | 2018-08-10 |
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