CN106825869B - Argon arc welding gun and device with same - Google Patents
Argon arc welding gun and device with same Download PDFInfo
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- CN106825869B CN106825869B CN201710243440.3A CN201710243440A CN106825869B CN 106825869 B CN106825869 B CN 106825869B CN 201710243440 A CN201710243440 A CN 201710243440A CN 106825869 B CN106825869 B CN 106825869B
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- tungsten electrode
- inlet pipe
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- argon arc
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- 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
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- 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
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- Arc Welding In General (AREA)
Abstract
An argon arc welding gun and a device with the argon arc welding gun comprise an insulator (11); the gun head body (1) is positioned outside the insulator (11) and connected with the insulator (11); a swirl ring (14) connected to a first end of the insulator (11); the nozzle (8) is connected with the end of the gun head body (1) close to the vortex ring (14); the air inlet pipe (4), the liquid inlet pipe (3) and the liquid outlet pipe (2) are arranged in the insulator (11); the tungsten electrode seat (5) is connected with the end of the liquid inlet pipe (3) or the insulator (11) near the vortex ring (14); a tungsten electrode (6) connected with the end of the tungsten electrode seat (5) far away from the liquid inlet pipe (3); the gas dispersing net (10) is positioned at the end of the tungsten electrode seat (5) far away from the tungsten electrode (6), the outer cylindrical surface is connected with the insulator (11), the inner cylindrical surface is connected with the tungsten electrode seat (5), and the gas dispersing port is communicated with the gas inlet pipe (4); a gas flow passage for gas to flow out is arranged between the tungsten electrode seat (5) and the tungsten electrode (6) and the swirl ring (14) and the nozzle (8).
Description
Technical Field
The invention relates to the technical field of welding equipment, in particular to an argon arc welding gun and a welding device with the same.
Background
The argon arc welding technology is a welding technology which utilizes argon gas to protect metal welding materials on the basis of common electric arc welding, melts the welding materials into liquid on a welded base material through high current to form a molten pool, and enables the welded metal and the welding materials to achieve metallurgical bonding. The argon arc welding equipment consists of a welding machine, a welding gun, a control box, water, electricity, gas, ground wire pliers, a tungsten electrode auxiliary device and the like. The traditional method for connecting the positive electrode and the negative electrode of a welding gun and a workpiece is determined according to different welding materials, usually argon is used as protective gas, a tungsten electrode is used as a non-melting electrode, and a melting base metal is heated to melt to realize welding.
CN 106001861A discloses an efficient water-cooling argon arc welding gun in 2016, 10, 12. The high-efficiency water-cooling argon arc welding gun comprises a handle, a gun head body sheath, a rear cap, a tungsten electrode rod, a tungsten electrode clamp, an inner heat insulation sleeve, an outer connecting sleeve, a nozzle connecting ring and a ceramic nozzle, wherein an air inlet pipe, an water inlet pipe and a water outlet pipe are arranged in the middle of the handle, the right end of the handle is connected with a machine head body sheath coated outside the gun head body, the lower end of the air inlet pipe is connected with an air inlet hole in the side surface of the upper end of the gun head body, the air inlet hole is communicated with a vertical through hole in the center of the gun head body, the tungsten electrode clamp is arranged in the middle of the vertical through hole, the tungsten electrode rod penetrates through the middle hole of the tungsten electrode clamp, an annular groove is processed in the middle of the outer circle of the gun head body, the inner circle of the inner heat insulation sleeve is tightly sleeved outside the annular groove to form a water cooling sleeve, the water inlet pipe and the water cooling sleeve are communicated with the water cooling sleeve, the outer heat insulation sleeve is arranged outside the inner heat insulation sleeve, the outer heat insulation sleeve is sleeved with the upper end of the ceramic nozzle, the lower end of the gun head body sheath is provided with an outer connecting sleeve, the lower end of the outer connecting sleeve is connected with a nozzle connecting ring, the connecting ring is screwed with the excircle of the upper end of the ceramic nozzle through threads, and the rear cap is arranged at the top end of the gun head body.
In the prior art, the air flow of an argon arc welding gun is difficult to control, a heat dissipation point of the welding gun is far away from a heating point, the heat dissipation performance is poor, a tungsten electrode is seriously ablated, electric arcs cannot be accurately regulated and controlled, and the operation is troublesome; due to structural limitation, the energy density of the electric arc cannot be further improved, so that the welding efficiency is difficult to improve, the welding quality is influenced, and the adaptability of welding materials is also influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the argon arc welding gun which has good heat dissipation performance and easy control of air flow and can greatly improve the energy density of electric arcs and the welding device with the argon arc welding gun.
In order to solve the above technical problems, in one aspect, the present invention provides an argon arc welding gun, including an insulator; the gun head body is positioned outside the insulator and connected with the insulator; a swirl ring connected to the insulator first end; the nozzle is connected with the end, close to the vortex ring, of the gun head body; the air inlet pipe, the liquid inlet pipe and the liquid outlet pipe are arranged in the insulator; the tungsten electrode seat is connected with the liquid inlet pipe or the end of the insulator close to the vortex ring; the tungsten electrode is connected with the end, far away from the liquid inlet pipe, of the tungsten electrode seat; the gas dispersing net is positioned on the tungsten electrode seat, is far away from the tungsten electrode end, is connected with the insulator through a cylindrical surface, is connected with the tungsten electrode seat through an inner hole, and is communicated with the gas inlet pipe through a gas dispersing port; and a gas flow channel for gas to flow out is arranged between the tungsten electrode seat and the tungsten electrode and between the swirl ring and the nozzle.
As one of the improved technical schemes, the argon arc welding gun provided by the invention is characterized in that the tungsten electrode base is connected with the near vortex ring end of the liquid inlet pipe; the tungsten electrode seat and the tungsten electrode are provided with axial cooling cavities which are far away from the opening of the tungsten electrode end and close to the tungsten electrode end; and a liquid outlet of the liquid inlet pipe extends into the axial cooling cavity.
On the basis of one of the improved technical schemes, as a further improved technical scheme, the argon arc welding gun provided by the invention also comprises an injection pipe, wherein the first end of the injection pipe is detachably connected with the liquid inlet pipe, and the other end of the injection pipe extends into the axial cooling cavity; the injection pipe is communicated with the liquid inlet pipe; the end, far away from the tungsten electrode base, of the injection pipe is provided with a boss connected with the liquid inlet pipe, a fluid backflow channel is formed between the end, close to the tungsten electrode base, of the injection pipe and the inner cavity and the axial cooling cavity of the liquid inlet pipe, and the end, far away from the tungsten electrode base, of the fluid backflow channel is communicated with the liquid outlet pipe.
Furthermore, according to the argon arc welding gun provided by the invention, a sealing ring is arranged between the liquid inlet pipe and the tungsten electrode base.
Furthermore, the cylindrical surface of the non-boss part of the injection pipe is also provided with at least three support columns which are contacted with the inner cavity wall of the liquid inlet pipe.
Furthermore, the support columns are arranged on the cylindrical surface of the injection pipe at equal central angles, and the distance between each support column and the boss is different and is arranged in a staggered manner.
Furthermore, according to the argon arc welding gun provided by the invention, spiral flow guide baffles are further arranged on the cylindrical surface of the non-boss part of the injection pipe, the inner wall of the liquid inlet pipe and/or the inner wall of the axial cooling cavity.
As a second improvement, in the argon arc welding gun provided by the present invention, the gas diffusing net comprises a cylinder connected with the insulator, a cylinder with an inner hole connected with the tungsten electrode base, an annular groove located at one end of the cylinder near the gas inlet pipe, and a plurality of gas diffusing through holes communicated with the annular groove and the gas flow passage.
As a third improvement, the argon arc welding gun provided by the invention is characterized in that a cable protection tube leading to the tungsten electrode holder is further arranged in the insulator.
In order to solve the above technical problem, in another aspect, the present invention provides an apparatus having the argon arc welding gun of any one of the above aspects.
The foregoing improvements can be practiced alone or in combination without conflict.
According to the technical scheme provided by the invention, the tungsten electrode seat and the tungsten electrode can be cooled, so that the temperature of the tungsten electrode seat and the tungsten electrode can be greatly reduced, the density of an electric arc is increased, and the welding power is improved, thereby improving the penetrating power of the electric arc, improving the penetration depth of the electric arc, obviously improving the welding quality, and achieving the effect of laser welding; the service life of the tungsten electrode seat and the tungsten electrode can be prolonged; the tungsten electrode seat and the tungsten electrode are cooled, so that the welding power can be improved, and the welding operation efficiency and the quality of a welding seam are improved; because the tungsten electrode seat and the tungsten electrode are cooled timely and effectively, the tungsten electrode is not easy to wear and deform, so that the permanent sharpness is maintained, the energy density of electric arcs is improved, the lapping of thin plates can be welded accurately without arc deflection and arc scattering, and the defects that the sharpness of a tungsten needle is burnt and the welding quality is influenced by overhigh temperature of the tungsten needle in the traditional welding gun are overcome. The welding device is novel in structure, the welding speed is equivalent to that of Mig welding, and welding smoke dust and dust spatter are obviously reduced, so that harm to people and damage to equipment are reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this application, but are not intended to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of an argon arc welding gun according to example 1;
FIG. 2 is a schematic structural view of an argon arc welding gun according to example 2;
fig. 3 is a left side view of fig. 2.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Example 1: the argon arc welding gun shown in fig. 1 and 3 comprises an insulator 11; the gun head body 1 is positioned outside the insulator 11 and connected with the insulator 11; a swirl ring 14 threadedly coupled to a first end of the insulator 11; the nozzle 8 is connected with the end, close to the vortex ring 14, of the gun head body 1 through threads; the gas inlet pipe 4, the liquid inlet pipe 3 and the liquid outlet pipe 2 are arranged in the insulator 11 and are communicated with the liquid inlet pipe 3; the tungsten electrode seat 5 is connected with the end, close to the vortex ring 14, of the insulator 11; the tungsten electrode 6 is connected with the end of the tungsten electrode seat 5 far away from the liquid inlet pipe 3; the gas dispersing net 10 is positioned at the end of the tungsten electrode seat 5 far away from the tungsten electrode 6, the outer cylindrical surface is connected with the insulator 11, the inner hole is connected with the tungsten electrode seat 5, and the gas dispersing port is communicated with the gas inlet pipe 4; a gas flow passage for gas to flow out is arranged between the tungsten electrode seat 5 and the tungsten electrode 6 and the swirl ring 14 and the nozzle 8. The gun head body 1 is coated outside the insulator 11 to play a protection role, and can be made of metal materials with high strength. The air inlet pipe 4 is connected with an external argon source, and during welding, argon enters a gas flow channel through the air inlet pipe 4 and the gas dispersing net 10, is discharged through the gas flow channel, plays a role in protection, and simultaneously cools the tungsten electrode seat 5 and the tungsten electrode 6. The cooling fluid enters the area close to the tungsten electrode seat 5 and the tungsten electrode 6 through the liquid inlet pipe 3, the tungsten electrode seat 5 and the tungsten electrode 6 are cooled through heat transfer, and the hot cooling fluid is discharged through the liquid outlet pipe 2.
Example 2: the argon arc welding gun shown in fig. 2 and 3 comprises an insulator 11; the gun head body 1 is positioned outside the insulator 11 and connected with the insulator 11; a swirl ring 14 threadedly coupled to the first end of the insulator 11; the nozzle 8 is connected with the end, close to the vortex ring 14, of the gun head body 1 through threads; the gas inlet pipe 4, the liquid inlet pipe 3 and the liquid outlet pipe 2 are arranged in the insulator 11 and are communicated with the liquid inlet pipe 3; the tungsten electrode seat 5 is connected with the end of the liquid inlet pipe 3 near the vortex ring 14; the tungsten electrode 6 is connected with the end of the tungsten electrode seat 5 far away from the liquid inlet pipe 3; the gas dispersing net 10 is positioned at the end of the tungsten electrode seat 5 far away from the tungsten electrode 6, the outer cylindrical surface is connected with the insulator 11, the inner hole is connected with the tungsten electrode seat 5, and the gas dispersing port is communicated with the gas inlet pipe 4; a gas flow channel for gas to flow out is arranged between the tungsten electrode seat 5 and the tungsten electrode 6 and between the vortex ring 14 and the nozzle 8; the tungsten electrode seat 5 and the tungsten electrode 6 are provided with an axial cooling cavity 9 which is far away from the opening of the end of the tungsten electrode 6 and is close to the closed end of the tungsten electrode 6; the first end of the injection pipe 7 is detachably connected with the liquid inlet pipe 3, and the other end of the injection pipe extends into the axial cooling cavity 9; the injection pipe 7 is communicated with the liquid inlet pipe 3; the end of the injection pipe 7, far away from the tungsten electrode base 5, is provided with a boss for connecting with the liquid inlet pipe 3, a fluid backflow channel is formed between the end of the injection pipe 7, near the tungsten electrode base 5, and the inner cavity of the liquid inlet pipe 3 and the axial cooling cavity 9, and the end of the fluid backflow channel, far away from the tungsten electrode base 5, is communicated with the liquid outlet pipe 2. The gun head body 1 is coated outside the insulator 11 to play a protection role, and can be made of metal materials with high strength. The air inlet pipe 4 is connected with an external argon source, and during welding, argon enters a gas flow channel through the air inlet pipe 4 and the gas dispersing net 10, is discharged through the gas flow channel, plays a role in protection, and simultaneously cools the tungsten electrode seat 5 and the tungsten electrode 6. The tungsten electrode seat 5 and the tungsten electrode 6 are provided with axial cooling cavities 9, cooling fluid is sprayed into the axial cooling cavities 9 through the liquid inlet pipe 3 and the spraying pipe 7 to cool the tungsten electrode seat 5 and the tungsten electrode 6, and hot cooling fluid is discharged through the liquid outlet pipe 2.
Optionally, in the argon arc welding gun provided by the invention, a sealing ring 12 is further arranged between the liquid inlet pipe 3 and the tungsten electrode base 5. The sealing ring 12 improves the sealing performance between the tungsten electrode base 5 and the liquid inlet pipe 3, and prevents the leakage of fluid from the gap between the tungsten electrode base 5 and the liquid inlet pipe 3.
Optionally, in the argon arc welding gun provided by the present invention, three support columns 16 contacting with the inner cavity wall of the liquid inlet pipe 3 are further disposed on the cylindrical surface of the non-boss portion of the injection pipe 7. The three support columns 16 are uniformly arranged on the cylindrical surface of the injection pipe 7 at equal central angles, and the distances between the support columns 16 and the boss are different and are arranged in a staggered manner. The support column 16 prevents the ejector tube 7 from swinging under the action of the high-speed liquid; the distance between each supporting column 16 and the boss is different and staggered, and meanwhile, the flowing direction of fluid in the fluid backflow channel can be changed, so that turbulence is more easily formed, and heat transfer is facilitated.
Optionally, in the argon arc welding gun according to the present invention, a spiral flow guide baffle 13 is disposed on a cylindrical surface of the non-boss portion of the injection pipe 7. In other embodiments, the deflector 13 may also be arranged on the inner wall of the inlet pipe 3 and/or on the inner wall of the axial cooling chamber 9. The flow guide baffle 13 can change the flow direction of the fluid in the fluid return channel to form turbulent flow, which is beneficial to heat transfer. The diversion baffle 13 is arranged on the inner wall of the liquid inlet pipe 3 and/or the inner wall of the axial cooling cavity 9, so that the heat transfer area can be increased, and the heat dissipation is accelerated.
Optionally, in the argon arc welding gun according to the present invention, the gas diffusing net 10 includes a cylinder connected to the insulator 11, a cylinder having an inner hole connected to the tungsten electrode holder 5, an annular groove located at an end of the cylinder near the gas inlet tube 4, and a plurality of gas diffusing through holes communicated with the annular groove and the gas flow passage. The gas dispersing net 10 is arranged, so that the inflow direction of the protective gas can be uniformly distributed at the inlet end of the gas flow channel, the flow velocity of the protective gas in the gas flow channel is more uniform, the protective gas flowing to the welding operation area is more uniform, and local low-pressure areas are prevented from being generated in the gas flow channel and the welding operation area, so that the external air is prevented from entering the gas flow channel or the welding operation area, the welding part is prevented from being oxidized, and the welding quality is improved; meanwhile, the flow velocity of the protective gas around the tungsten electrode seat 5 and the tungsten electrode 6 is balanced, which is beneficial to taking away the heat of the tungsten electrode seat 5 and the tungsten electrode 6 and reducing the temperature of the tungsten electrode seat 5 and the tungsten electrode 6, thereby better protecting the tungsten electrode seat 5 and the tungsten electrode 6 and prolonging the service life of the tungsten electrode seat 5 and the tungsten electrode 6.
Optionally, the argon arc welding gun provided by the invention is characterized in that a cable protection tube 15 leading to the tungsten electrode seat 5 is arranged in the insulator 11.
According to the technical scheme provided by the invention, the tungsten electrode seat 5 and the tungsten electrode 6 can be cooled, so that the temperature of the tungsten electrode seat 5 and the tungsten electrode 6 can be greatly reduced, the density of electric arcs is increased, and the welding power is improved, thereby improving the penetrating power of the electric arcs, improving the depth of fusion, obviously improving the welding quality, and achieving the effect of laser welding; the service life of the tungsten electrode seat 5 and the tungsten electrode 6 can be prolonged; the welding power can be improved by cooling the tungsten electrode seat 5 and the tungsten electrode 6, so that the welding operation efficiency and the welding quality are improved; because the tungsten electrode seat 5 and the tungsten electrode 6 are cooled timely and effectively, the tungsten electrode is not easy to wear and deform, and the tungsten electrode 6 keeps long sharpness, so that the energy density of electric arcs is improved, sheet lapping can be welded accurately without generating scattered arcs, and the defects that the sharpness of a tungsten needle is easy to burn and damage due to overhigh temperature of the tungsten needle and the welding quality is influenced in a traditional welding gun are overcome. The welding device is novel in structure, the welding speed is equivalent to that of Mig welding, and welding smoke dust and dust spatter are obviously reduced, so that harm to people and damage to equipment are reduced.
It is obvious that the present invention is not limited to the above preferred embodiments, and various changes and modifications can be made within the spirit of the present invention defined by the claims and the specification, so that the same technical problems can be solved and the intended technical effects can be obtained, and thus, they are not repeated. All solutions which can be directly or indirectly derived from the disclosure of the present invention by a person skilled in the art are within the spirit of the present invention as defined by the appended claims.
Claims (8)
1. The argon arc welding gun is characterized by comprising an insulator (11), a gun head body (1) which is positioned outside the insulator (11) and connected with the insulator (11), a vortex ring (14) connected with the first end of the insulator (11), a nozzle (8) connected with the gun head body (1) near the vortex ring (14), an air inlet pipe (4), an air inlet pipe (3) and a liquid outlet pipe (2) communicated with the air inlet pipe (3) which are arranged in the insulator (11), a tungsten electrode seat (5) connected with the end of the air inlet pipe (3) near the vortex ring (14), a tungsten electrode (6) connected with the end, far away from the air inlet pipe (3), of the tungsten electrode seat (5) and a gas dispersing net (10) positioned at the end, far away from the tungsten electrode (6), of the tungsten electrode seat (5); the air dispersion net (10) is provided with a cylinder with an inner hole connected with the tungsten electrode base (5), the cylinder surface of the cylinder is connected with the insulator (11), and an air dispersion port of the air dispersion net (10) is communicated with the air inlet pipe (4); a gas flow channel for gas to flow out is arranged between the tungsten electrode seat (5) and the tungsten electrode (6) and the vortex ring (14) and the nozzle (8); the tungsten electrode holder (5) is connected with the end of the liquid inlet pipe (3) close to the vortex ring (14); the tungsten electrode seat (5) and the tungsten electrode (6) are provided with axial cooling cavities (9) which are far away from the opening of the end of the tungsten electrode (6) and close to the end of the tungsten electrode (6) for sealing; the liquid outlet of the liquid inlet pipe (3) extends into the axial cooling cavity (9); still have first end with feed liquor pipe (3) can be dismantled and be connected, and the other end stretches into injection pipe (7) in axial cooling chamber (9), injection pipe (7) with feed liquor pipe (3) intercommunication, the tungsten utmost point (6) end of keeping away from of injection pipe (7) has annular boss, the tungsten utmost point seat (5) one end of keeping away from of injection pipe (7) has the boss that is used for being connected with feed liquor pipe (3), forms fluid backflow passageway between the inner chamber of nearly tungsten utmost point seat (5) one end of injection pipe (7) and feed liquor pipe (3) and axial cooling chamber (9), and tungsten utmost point seat (5) one end and drain pipe (2) intercommunication are kept away from of fluid backflow passageway.
2. The argon arc welding gun according to claim 1, characterized in that a sealing ring (12) is further arranged between the liquid inlet pipe (3) and the tungsten electrode base (5).
3. The argon arc welding gun according to claim 1, characterized in that the cylindrical surface of the non-boss part of the injection pipe (7) is further provided with at least three support columns (16) which are in contact with the inner cavity wall of the liquid inlet pipe (3).
4. The argon arc welding gun according to claim 3, characterized in that the support columns (16) are arranged at equal central angles on the cylindrical surface of the injection pipe (7), and the support columns (16) are arranged at different distances from the boss in a staggered manner.
5. The argon arc welding gun according to claim 1, characterized in that the cylindrical surface of the non-boss part of the injection pipe (7), the inner wall of the liquid inlet pipe (3) and/or the inner wall of the axial cooling cavity (9) are/is further provided with spiral flow guide baffles (13).
6. The argon arc welding gun according to claim 1, characterized in that the gas dispersion net (10) comprises a cylinder connected with the insulator (11) and an inner hole connected with the tungsten electrode holder (5), an annular groove at one end of the cylinder near the gas inlet pipe (4), and a plurality of gas dispersion through holes communicated with the annular groove and the gas flow passage.
7. An argon arc welding gun according to claim 1, characterized in that a cable sheath (15) leading to the tungsten electrode holder (5) is further provided in the insulator (11).
8. An apparatus having an argon arc welding gun, characterized in that the argon arc welding gun of any one of claims 1 to 7 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243440.3A CN106825869B (en) | 2017-04-14 | 2017-04-14 | Argon arc welding gun and device with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243440.3A CN106825869B (en) | 2017-04-14 | 2017-04-14 | Argon arc welding gun and device with same |
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| Publication Number | Publication Date |
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| CN106825869A CN106825869A (en) | 2017-06-13 |
| CN106825869B true CN106825869B (en) | 2022-05-17 |
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| CN201710243440.3A Active CN106825869B (en) | 2017-04-14 | 2017-04-14 | Argon arc welding gun and device with same |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6804964B2 (en) * | 2016-12-14 | 2020-12-23 | 川崎重工業株式会社 | Welding torch and omnidirectional welding equipment |
| CN107262884B (en) * | 2017-08-07 | 2022-07-15 | 长沙中创海通智能科技有限公司 | Argon arc welding gun with cooling function and device with argon arc welding gun |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102009061013B4 (en) * | 2009-02-03 | 2011-07-21 | Kjellberg Finsterwalde Plasma und Maschinen GmbH, 03238 | Torch for tungsten inert gas welding |
| CN102151963B (en) * | 2011-03-28 | 2013-06-12 | 兰州理工大学 | Welding gun for coupling active TIG welding of gas weld pool |
| CN102528249A (en) * | 2012-03-02 | 2012-07-04 | 北京工业大学 | Condensation electric arc welding gun |
| CN104191075A (en) * | 2014-05-13 | 2014-12-10 | 山东奥太电气有限公司 | Welding gun of high-energy tungsten electrode inert gas welding and process thereof |
| CN104002031B (en) * | 2014-05-20 | 2016-12-07 | 上海泛联科技股份有限公司 | A kind of high-energy arc torch |
| CN105983774B (en) * | 2016-06-24 | 2018-08-10 | 天津大学 | A kind of copper-clad tungsten electrode water cooling TIG welding guns based on cathode pinch effect |
| CN205834463U (en) * | 2016-07-11 | 2016-12-28 | 周国清 | A kind of dual-purpose plasma cutting-torch of Rapid Circulation water-cooled |
| CN206702397U (en) * | 2017-04-14 | 2017-12-05 | 石雪蛟 | A kind of argon-arc welding gun and the device with the argon-arc welding gun |
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