An extractor system includes a negative pressure gas stream source, a negative pressure conduit, a positive pressure gas stream source, a plurality of positive pressure gas stream manifolds, and an operator interface. The negative pressure conduit is conveys the negative pressure gas stream from a work area. A first end of the negative pressure conduit is coupled to the negative pressure gas stream source, such that the negative pressure gas stream flows from the work area through a second end of the negative pressure conduit and toward the first end of the negative pressure conduit. The positive pressure gas stream manifolds are disposed about the negative pressure conduit at the second end of the negative pressure conduit, and fluidly coupled to the positive pressure gas stream source. The positive pressure gas stream is directed through the plurality of positive pressure gas stream manifolds. The operator interface allows a user to control the positive pressure gas stream through each of the plurality of positive pressure gas stream manifolds.

An example welding torch includes a torch head, a torch handle including conductive tubing electrically and mechanically connected to the torch head at a first end of the conductive tubing, one or more welding power conductors, a gas conductor, and one or more coolant lines directly connected to a second end of the conductive tubing, and a casing configured to cover the one or more welding power conductors. An example welding torch includes a torch head configured to conduct welding-type power, a torch handle including conductive tubing coupled to the torch head, and a torch cable integrally coupled to the torch handle at a first end of the torch cable, the torch cable and the torch handle including an electrical path from a power supply connector to the torch head and a coolant path to cool the torch head.

Systems and apparatus are disclosed relating to improved fluid supply systems. In some examples, the improved fluid supply systems use an electrically controllable proportional valve and a surge prevention process to prevent a surge of pressurized fluid at the end of a welding-type operation. In particular, the surge prevention process may coordinate closure of the proportional valve and an on/off solenoid valve so that pressure in the fluid flow path can equalize to an ambient pressure after a welding operation (and/or a post flow operation) has ended. This coordination ensures that there is no pressure buildup and/or associated surge of fluid when the on/off solenoid valve is next opened (e.g., at the start of the next welding operation).

The present invention provides a welding apparatus and a welding method for ultra-narrow welding gap, relating to the technical field of welding with an ultra-narrow welding gap. The welding apparatus for ultra-narrow welding gap comprises: a blowing mechanism, a conductive nozzle and an industrial water-cooling unit. The industrial water-cooling unit is connected to the blowing mechanism. A medium flow of the industrial water-cooling unit flows through the inside of the blowing mechanism. The industrial water-cooling unit is configured to reduce a temperature of the shielding gas outputted by the blowing mechanism and a temperature of the conductive nozzle.

Systems and apparatus are disclosed relating to smart regulators and smart manifolds for welding-type systems. A smart regulator may be coupled to a fluid tank and provide information regarding the current pressure(s) and/or flow rate to a remote device and/or operator. The remote device may also determine and/or output additional information, such as, for example, remaining fluid and/or remaining time before the fluid runs out or becomes dangerously low. A smart manifold may be configured to work with several different fluid supplies. In this way, an operator may easily mix fluid types, switch between different fluid types, and/or switch between different fluid tanks.

A torch for performing TIG welding is disclosed. In accordance with at least one embodiment of the present invention, the torch includes a torch body having a cavity configured to receive and support an electrode assembly, a first shield gas channel, and a second shield gas channel. The first shield gas channel extends from an external surface of the torch body to a first plenum that is fluidly coupled to the cavity so that the first shield gas channel is configured to direct a first shield gas into the cavity. The first plenum is defined, at least in part, by the cavity and is disposed radially exterior of a portion of the electrode assembly. The second shield gas channel is configured to direct a second shield gas to exit the torch body along a path that that is radially exterior of the cavity.

An extractor system includes a negative pressure gas stream source, a negative pressure conduit, a positive pressure gas stream source, a plurality of positive pressure gas stream manifolds, and an operator interface. The negative pressure conduit is conveys the negative pressure gas stream from a work area. A first end of the negative pressure conduit is coupled to the negative pressure gas stream source, such that the negative pressure gas stream flows from the work area through a second end of the negative pressure conduit and toward the first end of the negative pressure conduit. The positive pressure gas stream manifolds are disposed about the negative pressure conduit at the second end of the negative pressure conduit, and fluidly coupled to the positive pressure gas stream source. The positive pressure gas stream is directed through the plurality of positive pressure gas stream manifolds. The operator interface allows a user to control the positive pressure gas stream through each of the plurality of positive pressure gas stream manifolds.

Disclosed is a modular purge chamber system designed to create precision-controlled inert or reactive gas environments for welding titanium, zirconium, aluminum, and other oxidation-prone metals. The system preferably addresses persistent challenges in maintaining atmospheric isolation during welding operations while improving accessibility and gas efficiency compared to traditional trailing shields.

Disclosed example welding fume torches include: a handle having a grip section; a neck extending from a forward end of the handle; a fume collection nozzle in fluid communication with an interior of the handle; and a fume hose in fluid communication with the fume collection nozzle via the interior of the handle, the handle including a fume channel having a larger flow area than the grip section, having at least one dimension that is larger than a same dimension of at least one section of the handle forward of the fume channel, and configured to reduce flow resistance for fume between the fume collection nozzle and the fume hose, at least part of the fume channel being forward of the grip section.

A device (10) for thermally joining workpieces has a torch (1) and an extraction unit (2) for extracting fumes that are produced during welding, cutting or soldering processes. At least one sensor (3) determines the position and/or position changes of the torch (1) and/or a reference point in the area relative to a reference position of the torch (1) and/or of the workpiece that is to be processed. Volume flow of extracted fumes at the extraction unit (2) acting at the torch (1) is adjusted as a function of the determined position and/or position change of the torch (1).