WO2021119870A1 - Guide device that can be adapted to different wire diameters for cold-wire tungsten inert gas (tig) welding - Google Patents
Guide device that can be adapted to different wire diameters for cold-wire tungsten inert gas (tig) welding Download PDFInfo
- Publication number
- WO2021119870A1 WO2021119870A1 PCT/CL2020/050170 CL2020050170W WO2021119870A1 WO 2021119870 A1 WO2021119870 A1 WO 2021119870A1 CL 2020050170 W CL2020050170 W CL 2020050170W WO 2021119870 A1 WO2021119870 A1 WO 2021119870A1
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- WO
- WIPO (PCT)
- Prior art keywords
- wire
- guide device
- welding
- tig
- nozzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
-
- 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
-
- 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
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- 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
-
- 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
Definitions
- This utility model allows the realization of a TIG coid wire welding process, with mechanized wire feeding, with torch displacement speeds equal to or greater than 30 cm / min through the use of a wire guide device that is coupled to a commercial TIG torch for automated or robotic processes.
- Figure 1 shows the present guiding device installed on a commercial TIG torch, in particular a 450 (A) capacity water-cooled torch for testing purposes.
- Figure 2 shows the TIG torch with the present wire guide device, installed in a translation system (linear movement of the gun) with one degree of freedom, in addition to an arc current and voltage data acquisition equipment, cooling system with water for the torch and shielding gas for the weld bead, the welding speed of 30 cm / min is programmed to perform tests on a welding machine with a capacity of 200 (A), where the arc was kept accessible by 3 minutes and temperature measurements were made with a thermal imaging camera, seconds after the arc was turned off.
- Figure 3 shows the image delivered by the thermal imager.
- Figure 4 shows the surface appearance of the weld bead achieved on a sheet of SAE 1015 carbon steel of dimensions 200 x 63 x 6 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
Description
DISPOSITIVO GUÍA ADAPTABLE A DIFERENTES DIÁMETROS DE ALAMBRE PARA SOLDADURA TIG COLD WIRE GUIDING DEVICE ADAPTABLE TO DIFFERENT WIRE DIAMETERS FOR TIG COLD WIRE WELDING
El presente modelo de utilidad se refiere a un dispositivo guía adaptable a diferentes diámetros de alambre para el proceso de soldadura TIG coid wire mecanizado de alta productividad que permite un aumento en la productividad del proceso de soldadura y mejora la calidad de las uniones soldadas y la calidad de vida de los soldadores. This utility model refers to a guide device adaptable to different wire diameters for the high productivity machined TIG coid wire welding process that allows an increase in the productivity of the welding process and improves the quality of the welded joints and the quality of life of welders.
El presente modelo de utilidad tiene aplicación en los sectores del área metal mecánica que trabajan con procesos de soldadura, específicamente, con el proceso de soldadura TIG, tales como empresas que trabajan en la recuperación de componentes o equipos por soldadura. Actualmente, el proceso de soldadura TIG (de sus siglas en inglés, Tungsten Inert Gas) es aplicado de forma manual y la calidad de la soldadura depende exclusivamente de la habilidad del soldador. En países industrializados el proceso es utilizado con alimentación mecanizada de alambre, que usa dispositivos de soldadura (torchas) para proceso automatizado. Pero la alimentación mecanizada no es flexible y no se adapta a distintos diámetros del alambre, limitando así, la selección del alambre a usar. La automatización de los procesos de soldadura tiene por propósito aumentar la productividad y asegurar la calidad para la obtención de mayor repetitividad en la producción. This utility model has application in the sectors of the metal mechanic area that work with welding processes, specifically, with the TIG welding process, such as companies that work in the recovery of components or equipment by welding. Currently, the TIG (Tungsten Inert Gas) welding process is applied manually and the quality of the weld depends exclusively on the skill of the welder. In industrialized countries the process is used with mechanized wire feeding, which uses welding devices (torches) for automated processes. But the mechanized feeding is not flexible and does not adapt to different diameters of the wire, thus limiting the selection of the wire to use. The purpose of automating welding processes is to increase productivity and ensure quality in order to obtain greater repeatability in production.
El presente modelo de utilidad permite la realización de un proceso de soldadura TIG coid wire, con alimentación mecanizada de alambre, con velocidades de desplazamiento de la torcha igual o superior a 30 cm/min mediante el uso de un dispositivo guía de alambre que se acopla a una torcha comercial TIG para procesos automáticos o robotizados. This utility model allows the realization of a TIG coid wire welding process, with mechanized wire feeding, with torch displacement speeds equal to or greater than 30 cm / min through the use of a wire guide device that is coupled to a commercial TIG torch for automated or robotic processes.
La figura 1 muestra el presente dispositivo de guía instalado en una torcha TIG comercial, en particular, en una torcha refrigerada a agua con capacidad de 450 (A) para la realización de pruebas. La Figura 2 muestra la torcha TIG con el presente dispositivo guía de alambre, instalada en un sistema de traslación (desplazamiento lineal de pistola) con un grado de libertad, además un equipo de adquisición de datos de corriente y tensión de arco, sistema de refrigeración con agua para la torcha y gas de protección para el cordón de soldadura, que se programa la velocidad de soldadura de 30 cm/min para realizar pruebas en una máquina de soldar con capacidad de 200 (A), donde el arco se mantuvo acceso por 3 minutos y se realizaron mediciones de temperatura con cámara termográfica, segundos después de apagado el arco. La Figura 3 muestra la imagen entregada por la cámara termográfica. La Figura 4 muestra el aspecto superficial del cordón de soldadura logrado sobre una plancha de acero al carbono SAE 1015 de dimensiones 200 x 63 x 6 mm. Figure 1 shows the present guiding device installed on a commercial TIG torch, in particular a 450 (A) capacity water-cooled torch for testing purposes. Figure 2 shows the TIG torch with the present wire guide device, installed in a translation system (linear movement of the gun) with one degree of freedom, in addition to an arc current and voltage data acquisition equipment, cooling system with water for the torch and shielding gas for the weld bead, the welding speed of 30 cm / min is programmed to perform tests on a welding machine with a capacity of 200 (A), where the arc was kept accessible by 3 minutes and temperature measurements were made with a thermal imaging camera, seconds after the arc was turned off. Figure 3 shows the image delivered by the thermal imager. Figure 4 shows the surface appearance of the weld bead achieved on a sheet of SAE 1015 carbon steel of dimensions 200 x 63 x 6 mm.
En comparación con el direccionador de alambre de la solicitud de modelo de utilidad 201601234 del mismo Solicitante, concedida el 26.07.2018 como registro 532, el presente modelo de utilidad permite la fijación de boquillas de 3 diferentes diámetros, lo que permite variabilidad en la selección del diámetro de alambre a usar en la soldadura, y con ello, la misma se puede realizar con niveles de productividad mayores (Kg/h) además de poder incrementar la velocidad de soldadura a velocidades de 30 (cm/min) similares a las velocidades alcanzadas por los procesos de soldadura de alta productividad. El dispositivo de la solicitud de modelo de utilidad antes mencionado sólo permite un diámetro de alambre de 0,8 mm y se limita a una velocidad de soldadura de 15 cm/min. Compared to the wire guide of the application for utility model 201601234 of the same Applicant, granted on 07/26/2018 as registration 532, this utility model allows the fixing of nozzles of 3 different diameters, which allows variability in the selection of the wire diameter to be used in the welding, and with it, the same can be carried out with higher productivity levels (Kg / h) in addition to being able to increase the welding speed to speeds of 30 (cm / min) similar to the speeds reached by high productivity welding processes. The aforementioned utility model application device only allows a wire diameter of 0.8 mm and is limited to a welding speed of 15 cm / min.
El presente modelo de utilidad puede ser preferentemente usado en torchas comerciales robotizadas que utilizan elevados niveles de corriente (450 A) con la posibilidad de utilizar alambres de diferentes diámetros y diferentes materiales (acero al carbono, acero inoxidable y aluminio). The present utility model can be preferably used in commercial robotic torches that use high current levels (450 A) with the possibility of using wires of different diameters and different materials (carbon steel, stainless steel and aluminum).
Por otro lado, el presente modelo de utilidad es simple de instalar y mantener y se puede usar para realizar soldaduras con alimentación de alambre tanto por el frente del arco, posterior al arco como lateralmente. On the other hand, the present utility model is simple to install and maintain and can be used to perform wire feed welding both front of arc, back of arc, and laterally.
La Figura 5 muestra la torcha TIG comercial (1) donde se instala el presente dispositivo de guía de alambre (2A). También muestra una manguera (2B) que se encuentra conectada en el alimentador de alambre por un extremo, y el otro extremo, se conecta al presente dispositivo de guía. La Figura 6 muestra el detalle de las partes del presente dispositivo de guía de alambre en despiece y en orden de instalación en la torcha TIG. Figure 5 shows the commercial TIG torch (1) where the present wire guide device (2A) is installed. It also shows a hose (2B) that is connected to the wire feeder at one end, and the other end is connected to the present guiding device. Figure 6 shows the detail of the parts of the present wire guide device exploded and in order of installation in the TIG torch.
La Figura 7 muestra un esquema en corte del presente dispositivo de guía de alambre, donde se observa el cuerpo roscado (2Ά) de la pistola TIG que se energiza por el paso de la corriente, y por ello, se ubica un elemento aislante interior (2E), preferentemente un elemento aislante de teflón, cubriendo esta rosca, e inmediatamente a continuación se localiza una tobera-soporte guía (2H) junto con una contratuerca (2D) que permite fijar la tobera-soporte guía en la torcha (2). Figure 7 shows a sectional diagram of the present wire guide device, where the threaded body (2Ά) of the TIG gun that is energized by the passage of current is observed, and therefore, an interior insulating element is located ( 2E), preferably an insulating element of Teflon, covering this thread, and immediately afterwards a nozzle-guide support (2H) is located together with a lock nut (2D) that allows to fix the nozzle-guide support on the torch (2).
El extremo libre del tubo guía permite la ubicación de una boquilla que puede ser cambiada/reemplazada de acuerdo al diámetro del alambre que se va a emplear en la operación de la soldadura. Las boquillas pueden tener tres diámetros diferentes: 0,8 mm; 1 ,0 mm; 1 ,6 mm. El tubo guía (2F) es fijado mediante al menos dos prisioneros o medios de sujeción (2G) a la tobera-soporte guía. Por el extremo superior del tubo guía (2F) se conecta la manguera (2B) preferentemente con una tuerca. El otro extremo de la manguera posee un medio de conexión (2J) preferentemente una conexión euro, que guía el alambre desde el cabezal alimentador de alambre hasta la boquilla (2’B) del presente dispositivo guía. The free end of the guide tube allows the location of a nozzle that can be changed / replaced according to the diameter of the wire to be used in the welding operation. The nozzles can have three different diameters: 0.8 mm; 1.0mm; 1.6 mm. The guide tube (2F) is fixed by at least two captives or fastening means (2G) to the guide nozzle-support. At the upper end of the guide tube (2F) the hose (2B) is preferably connected with a nut. The other end of the hose has a connection means (2J), preferably a euro connection, which guides the wire from the wire feeder head to the nozzle (2'B) of the present guide device.
Las Figuras 8 a la 12 muestran el diseño de cada una de las partes que conforman el presente dispositivo de guía para diferentes boquillas que permiten el uso de 3 diámetros de alambre para el proceso de soldadura TIG coid wire. Figures 8 to 12 show the design of each of the parts that make up the present guide device for different nozzles that allow the use of 3 wire diameters for the TIG coid wire welding process.
El tubo guía (2F) así guía el alambre hasta la poza de fusión con un ángulo de 70e en relación al material base, y fija en su extremo mediante una rosca, una boquilla cambiable de acuerdo al diámetro del alambre. La tobera-soporte (2H) soporta el tubo guía (2F) mediante al menos 2 prisioneros (2G) y genera la campana de gas de protección. La tobera-soporte (2H) se fija a la torcha mediante la contratuerca (2D) que para evitar el paso de corriente está cubierto de un aislante (2E). The guide tube (2F) thus guides the wire to the melting pool at an angle of 70 e in relation to the base material, and fixes at its end by means of a thread, a changeable nozzle according to the wire diameter. The support nozzle (2H) supports the guide tube (2F) by at least 2 prisoners (2G) and generates the shielding gas hood. The nozzle-support (2H) is fixed to the torch by means of the locknut (2D) which to prevent the passage of current is covered with an insulator (2E).
Las maestranzas Metal Metálica se beneficiarán con esta tecnología, debido a que muchas soldaduras de pase de raíz en tuberías son realizadas con el proceso de soldadura TIG manual, por lo tanto, esta iniciativa permitirá aumentar la productividad y disminuir el porcentaje de discontinuidades y defectos ejecutando las soldaduras en un menor tiempo, disminución del consumo de gas, mejor calidad de los cordones de soldadura y disminución de las horas hombre, lo que se traduce en la disminución de los tiempos de mantenimiento y aumento de la disponibilidad de los componentes soldados. Metal Metálica teachers will benefit from this technology, since many root pass welds in pipes are carried out with the manual TIG welding process, therefore, this initiative will increase productivity and reduce the percentage of discontinuities and defects executing welding in less time, reduction in gas consumption, better quality of weld seams and reduction in man-hours, which translates into shorter maintenance times and increased availability of welded components.
Como se mencionó antes, el proceso de soldadura TIG con alimentación mecanizada de alambre necesita de un direccionador para inyectar el alambre en el arco voltaico. Estos direccionadores fueron concebidos simulando la entrada de alambre que utiliza el soldador cuando utiliza el proceso de soldadura de forma manual. Pero la mayor energía del arco está cerca del electrodo de tungsteno y en el centro de la columna del arco. As mentioned before, the mechanized wire feed TIG welding process requires a driver to inject the wire into the arc. These routers were designed to simulate the wire input that the welder uses when using the manual welding process. But the greatest energy of the arc is near the tungsten electrode and in the center of the arc column.
El direccionador de alambre del presente modelo de utilidad logra un proceso de soldadura más productivo debido a que permite seleccionar un diámetro de boquilla, y con ello, un alambre de diámetro o material según se desee. The wire guide of the present utility model achieves a more productive welding process because it allows selecting a nozzle diameter, and with it, a wire of diameter or material as desired.
De esta forma, el presente dispositivo de guía de alambre para proceso de soldadura TIG mecanizado comprende una contratuerca (2D) que se une en un extremo mediante un primer medio de unión, al electrodo de una máquina de soldar (1 ), y en el otro extremo, se une mediante un segundo medio de unión, a un elemento aislante (2E); un elemento aislante (2E) que se une internamente a la contratuerca mediante un tercer medio de unión, y evita el paso de la corriente al interior; una tobera-soporte guía (2H) unida superiormente mediante un cuarto medio de unión a dicha contratuerca (2D) y con al menos dos orificios pasantes laterales; y un tubo guía con boquilla desmontable e reemplazable (2D) que se fija a la tobera soporte mediante con al menos 2 medios de sujeción. In this way, the present wire guide device for mechanized TIG welding process comprises a locknut (2D) that is joined at one end by means of a first joining means, to the electrode of a welding machine (1), and at the another end, is joined by means of a second joining means, to an insulating element (2E); an insulating element (2E) that is internally attached to the locknut by means of a third attachment means, and prevents the passage of current to the interior; a nozzle-guide support (2H) joined superiorly by means of a fourth means of connection to said locknut (2D) and with at least two lateral through holes; and a removable and replaceable nozzle guide tube (2D) that is fixed to the support nozzle by means of at least 2 fastening means.
Siendo preferentemente, dichos primer, segundo, tercer y cuarto medios de unión, extremos hilados. Said first, second, third and fourth joining means being preferably spun ends.
Seleccionándose preferentemente, dichos 2 medios de sujeción de finos pasadores o prisioneros. Preferably selected, said 2 means for holding fine pins or studs.
Seleccionándose, dicha boquilla desmontable y reemplazable de boquillas de diámetro 0,8 mm, 1 ,0 mm o 1 ,6 mm. Selecting, said removable and replaceable nozzle of nozzles of diameter 0.8mm, 1.0mm or 1.6mm.
Con objeto de permitir una mejor comprensión del objeto del presente modelo, se acompañan las siguientes figuras: In order to allow a better understanding of the object of this model, the following figures are attached:
Figura 1 . Dispositivo guía de alambre montado sobre torcha comercial. Figura 2. Muestra el sistema de ensayo para la realización de pruebas, comprendiendo: máquina de soldar (1 ); la torcha adaptada con el presente dispositivo de guía de alambre (2); el dispositivo proveedor de gas (3); el sistema de traslación de la torcha (4); el sistema de adquisición de datos (5); y el sistema de refrigeración (6). Figura 3. Muestra los resultados de la medición de la temperatura en el ensayo. Figure 1 . Commercial torch mounted wire guide device. Figure 2. Shows the test system for conducting tests, comprising: welding machine (1); the torch fitted with the present wire guide device (2); the gas supply device (3); the torch translation system (4); the data acquisition system (5); and the cooling system (6). Figure 3. Shows the results of the temperature measurement in the test.
Figura 4. Muestra el aspecto superficial del cordón de soldadura con una velocidad de soldadura (Vs) de 30 cm/min. Figure 4. Shows the surface appearance of the weld bead with a welding speed (Vs) of 30 cm / min.
Figura 5. Muestra el presente dispositivo de guía de alambre instalado, comprendiendo: Torcha TIG comercial (2); dispositivo guía de alambre (2A); y guía de alambre proveniente de la máquina de soldar o de la unidad de alimentación de alambre (2B). Figure 5. Shows the present wire guide device installed, comprising: Commercial TIG torch (2); wire guide device (2A); and wire guide from the welding machine or wire feed unit (2B).
Figura 6. Muestra el presente dispositivo de guía de alambre instalado en despiece, comprendiendo: Torcha TIG comercial (2); Manguera para conducir alambre (2B); electrodo de tungsteno (2C); contratuerca o medio de cierre (2D); aislante (2E); tubo guía con boquilla (2F); Prisioneros o medio de sujeción (2G); y tobera soporte (2H). Figura 7. Muestra esquema en corte del presente dispositivo de guía de alambre instalado, comprendiendo: cuerpo de la torcha TIG con rosca (2Ά), contratuerca o medio de cierre (2D); aislante (2E); Tubo guía (2F); tobera soporte guía (2H); prisioneros o medios de sujeción (2G); y boquilla con hilo (2’B). Figure 6. Shows the present wire guide device installed in exploded view, comprising: Commercial TIG torch (2); Hose to lead wire (2B); tungsten electrode (2C); locknut or locking means (2D); insulator (2E); guide tube with nozzle (2F); Prisoners or means of restraint (2G); and support nozzle (2H). Figure 7. Shows a sectional diagram of the present installed wire guide device, comprising: body of the TIG torch with thread (2Ά), locknut or closing means (2D); insulator (2E); Guide tube (2F); guide support nozzle (2H); prisoners or means of restraint (2G); and nozzle with thread (2'B).
Figura 8. Muestra el tubo guía (2F), que preferentemente, se selecciona de un tubo de cobre. Figura 9. Muestra boquillas (2’B) preferentemente seleccionadas de boquillas de bronce, con diámetros de, 8 mm; 1 ,0 mm; 1 ,6 mm. Figure 8. Shows the guide tube (2F), which is preferably selected from a copper tube. Figure 9. Shows nozzles (2'B) preferably selected from bronze nozzles, with diameters of .8 mm; 1.0mm; 1.6 mm.
Figura 10. Muestra Tobera-Soporte guía (2H), preferentemente seleccionadas de toberas de bronce. Figure 10. Sample nozzle-guide support (2H), preferably selected from bronze nozzles.
Figura 11. Muestra contratuerca (2D), preferentemente seleccionada de una contratuerca de bronce. Figure 11. Sample locknut (2D), preferably selected from a bronze locknut.
Figura 12. Muestra el elemento aislante interior (2E) preferentemente un aislante fabricado de teflón resistente a elevadas temperaturas. Figure 12. Shows the inner insulating element (2E) preferably an insulator made of Teflon resistant to high temperatures.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CL3803-2019 | 2019-12-20 | ||
| CL2019003803 | 2019-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021119870A1 true WO2021119870A1 (en) | 2021-06-24 |
Family
ID=76478396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CL2020/050170 Ceased WO2021119870A1 (en) | 2019-12-20 | 2020-12-10 | Guide device that can be adapted to different wire diameters for cold-wire tungsten inert gas (tig) welding |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2021119870A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3588464A (en) * | 1969-04-17 | 1971-06-28 | Union Carbide Corp | Dual electrode torch for manual welding |
| GB1332226A (en) * | 1971-01-08 | 1973-10-03 | Pfizer | Tubular shielding gas nozzle |
| US4532406A (en) * | 1984-02-10 | 1985-07-30 | General Electric Company | Arc welding torch having integrated wire feed |
| US7329827B2 (en) * | 2004-03-11 | 2008-02-12 | L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Wire-guide nozzle assembly for a robotic TIG welding torch |
| CN205362967U (en) * | 2016-02-01 | 2016-07-06 | 中国核工业第五建设有限公司 | Tungsten utmost point argon arc welds and send a nozzle |
| CN108788395A (en) * | 2018-06-22 | 2018-11-13 | 山东大学 | A kind of integral type TIG by the double wire feeds of sidewall symmetry welds nozzle and welding gun |
-
2020
- 2020-12-10 WO PCT/CL2020/050170 patent/WO2021119870A1/en not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3588464A (en) * | 1969-04-17 | 1971-06-28 | Union Carbide Corp | Dual electrode torch for manual welding |
| GB1332226A (en) * | 1971-01-08 | 1973-10-03 | Pfizer | Tubular shielding gas nozzle |
| US4532406A (en) * | 1984-02-10 | 1985-07-30 | General Electric Company | Arc welding torch having integrated wire feed |
| US7329827B2 (en) * | 2004-03-11 | 2008-02-12 | L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Wire-guide nozzle assembly for a robotic TIG welding torch |
| CN205362967U (en) * | 2016-02-01 | 2016-07-06 | 中国核工业第五建设有限公司 | Tungsten utmost point argon arc welds and send a nozzle |
| CN108788395A (en) * | 2018-06-22 | 2018-11-13 | 山东大学 | A kind of integral type TIG by the double wire feeds of sidewall symmetry welds nozzle and welding gun |
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