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8129649 |
Magnetic arc welding method for workpieces with open cross-sections
A method for Magnetic Arc welding for metallic materials wherein at least one of the workpieces to be welded has an open cross-section. The method comprises bracing the two workpieces and moving...
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7781699 |
Plasma torch with post flow control
A system for the efficient utilization of plasma torch post arc cooling gas includes a controller configured to automatically determine a post arc gas flow duration. The controller monitors a...
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7235758 |
MIG-plasma welding
A welding system comprises a combined torch that includes a consumable electrode and a non-consumable electrode positioned so that their respective axes form an acute angle and so that arcs...
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7230201 |
Apparatus and methods for controlling charged particles
Among the embodiments of the present invention, are apparatus, systems, and methods for managing energetic charged particles emitted nearly isotropically from a fusion device. One apparatus of the...
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7161115 |
Magnetically impelled arc butt welding of pipelines
The present invention is a method and a vehicle-mounted apparatus (30) for laying pipelines in which adjacent pipe (17, 28) are joined by the technique of magnetically impelled arc butt welding...
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7045741 |
Electric arc welding device, method of welding metal sheets to metallic counterpieces, and welding element
An electric arc welding device (10) for butt welding metallic sheets (12; 72; 80; 90; 92; 94; 100) is provided having an elongated face (22) onto metallic counterpieces (14), having a holding...
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6630642 |
Welding apparatus for sleeves
For arc welding a sleeve 3 to a workpiece surface 2, a sleeve holder 1 is surrounded by a field-former unit which contains a magnet coil 4, a magnetic flux return member 6 and a field former 7. A...
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6617547 |
Arc stray controlling welding apparatus
A welding apparatus controlling a position of a welding arc, having a welding head housing an electrode producing the welding arc in a working zone. The apparatus has an electromagnet compensating...
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6492613 |
System for precision control of the position of an atmospheric plasma
Multiple plasma jet path sensing positions and multiple localized steering magnetic fields for each plasma jet leg in an atmospheric plasma jet control system are described for a precise control...
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6414265 |
Method and apparatus for drawn arc welding with magnetically impelled arc
A method and apparatus for drawn arc welding includes the step of applying a magnetic field transversely to the arc to impel the arc along the welding gap. The invention permits tubular components...
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6337455 |
Process and apparatus for transforming metal material
A metal material is formed into a wire material, and an end of the wire material is molten by an electric discharge. A molten sphere formed by the melting of the end is flied by a gas flow. Thus, a...
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6211489 |
Method of magnetically impelled arc butt welding
A press welding process which can be used in such industries as car-making, production of hot-water boilers, industrial and civil construction, in construction of pipelines using small and medium...
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6069334 |
Electroslag strip overlay method
An apparatus and method for depositing an overlay material onto a metal surface. An electroslag strip overlaying process which distributes flux through a trailing flux tube and a forward flux tube...
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6040548 |
Apparatus for generating and deflecting a plasma jet
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6028286 |
Method for igniting a plasma inside a plasma processing reactor
The invention relates to a plasma processing reactor for processing a substrate. The plasma processing reactor includes a process chamber. The plasma processing reactor further includes an...
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6028283 |
Assembly and method for welding
An assembly for welding includes a frame member and a plurality of repositionable torches supported by the frame member adjacent a linear path of travel of a metal strip. The method includes the...
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6023043 |
Method of welding in the horizontal position and welding apparatus therefor
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5981904 |
Tandem cathodic cleaning device for wire
A wire cleaner having a chamber and containing an arc ring for passing a wire therethrough, such that when the wire and arc ring are provided with opposite electrical potentials, an electric arc...
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5948294 |
Device for cathodic cleaning of wire
A wire cleaner having a chamber and containing an arc ring for passing a wire therethrough, such that when the wire and arc ring are provided with opposite electrical potentials, an electric arc...
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5932121 |
Welding method in the overhead and vertical positions
The object of this invention is to prevent a defect which occurs in overhead or vertical welding when gravity causes molten metal to drip downward so that the top of the gap has an undercut and the...
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5773787 |
Plasma-gun voltage generator
The Plasma-Gun Voltage-Generator (PVG) uses a pulsed plasma-flow to displace magnetic flux, thereby inducing high voltages across multi-turn coils. Typical operating parameters are voltages of 0.5...
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5767627 |
Plasma generation and plasma processing of materials
A plasma generation system includes one or more pairs of electrode units. Each electrode unit emits a plasma carrying gas along a respective axis. Each pair of electrode units is connected to an...
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5726412 |
Linear microwave source for plasma surface treatment
The invention relates to a linear microwave source for the treatment of surfaces comprising: a tight enclosure (1), means (B1, B2 ; A1, A2) for producing a magnetic field in the enclosure and for...
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5719371 |
Plasma torch with integrated independent electromagnetic coil for moving the arc foot
The present invention concerns a plasma torch with an integrated independent electromagnetic coil for moving the arc foot. The torch includes a bare torch portion housing a single upstream...
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5688417 |
DC arc plasma torch, for obtaining a chemical substance by decomposition of a plasma-generating gas
DC arc plasma torch, in particular intended for obtaining a chemical substance from a plasma-generating gas (P) which includes said substance.According to the invention:the electrode (2A) is in...
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5674416 |
Arc treatment of metal surfaces
A method and apparatus for graining a surface having a substantial area traveling at a substantial rate of speed. The method includes directing the surface past an array of electrical arcs...
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5635087 |
Apparatus for plasma-assisted high rate electron beam vaporization
It is known that improved coating properties can be obtained by plasma action in vacuum deposition, especially by vaporization. Substantially higher coating rates can be attained in vapor...
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5585696 |
High current density glow discharge switch
The present invention is directed to a high current density glow discharge switch which is capable of preventing confinement of an electron current to the vicinity of the center of a flat electrode...
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5508492 |
Apparatus for extending broad metal surface areas with a magnetically impelled arc
Apparatus for electric arc graining the surface of a traveling electrically conductive workpiece, the surface having a substantial area. The graining is effected by a continuous loop electrode...
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5500501 |
Torch device for chemical processes
A plasma torch includes an arc having a generator for producing an axial field in the arc's area of operation in which one or more bodies of ferromagnetic material are placed along the torches...
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5481084 |
Method for treating a surface such as a metal surface and producing products embodying such including lithoplate
Substantial surface areas can be treated by continuously magnetically moving an electric arc around a general loop direction such as a circle, ellipse or oval and moving the surface so that the arc...
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5462609 |
Electric arc method for treating the surface of lithoplate and other metals
An essentially flat "arc-grained" surface of a sheet of aluminum alloy is produced with a coarse and non-uniform microstructure which, after it is coated with a durable phosphate-free coating,...
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5414234 |
Stud welding method
A welding comprises placing the end of a stud supported by a welding gun on a welding portion of a workpiece, producing an arc discharge across the stud and the workpiece, melting the end of the...
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5393954 |
Plasma torch with power supply for equalizing wear to prolong the lifespan of an electrode of the torch
The plasma torch (10; 11, 12, 14) comprises an electrical power supply (20) with an arc circuit (21) and a coil circuit (22) which are mounted in series and with means (30) for controlling the...
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5376768 |
Method for equalizing wear to prolong the lifespan of a plasma torch electrode
The plasma torch (10; 11, 12, 14) comprises an electrical power supply (20) with an arc circuit (21) and a coil circuit (22) which are mounted in series and with means (30) for controlling the...
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5374801 |
Plasma heating for containerless and microgravity materials processing
A method for plasma heating of levitated samples for containerless microgravity processing is disclosed. A sample is levitated by electrostatic, electromagnetic, aerodynamic, or acoustic systems,...
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5354963 |
Process and a device for continuous surface treatment of rod-shaped, longitudinally extended materials with metal surfaces using a magnetically displaced plasma arc
The invention concerns a process and a device for surface heat treatment of rod-shaped, longitudinally extended materials with metal surfaces by means of an arc, which rotates and is magnetically...
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5345058 |
Magnetic field negating system for weldments
A system for negating remnant magnetic fields in a weld joint between two workpieces includes a controller and an electromagnet with two feet that form the pole pieces. The electromagnet feet are...
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5235160 |
Heat-plasma-jet generator capable of conducting plasma spray or heat-plasma CVD coating in a relatively wide area
In a heat-plasma-jet, an arc is initially generated between opposed endless ends of a pair of electrodes and is moved along the opposed endless ends of the electrodes by generating magnetic fields...
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5202544 |
Method of machining plate materials with a plasma cutter and plasma torch
The present invention relates to a method of machining plate materials with a plasma cutter and plasma torch. This method is one in which the density of a magnetic flux formed in the range between...
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5177338 |
Cathode structure of plasma-arc torch
A cathode structure of a transition type plasma arc torch, in which a cooling effect is enhanced, and also an amount of consumption of cathode material is reduced by continuously moving a discharge...
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5132511 |
Plasma torch provided with an electromagnetic coil for rotating arc feet
A plasma torch includes two axially spaced tubular electrodes and an electromagnetic coil for rotating an electric arc formed between the electrodes. Each electrode is held in a support, at least...
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5117084 |
Method for pressure welding of parts heated with an arc moving in magnetic field
A method for pressure welding of parts with heating with an arc moving in magnetic field in which the parts (2,3) are placed coaxially with each other with a working gap (δ) between their ends ...
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5114499 |
Method of forming chilled layer
The surface of a metal workpiece is remelted by a heat producing energy beam so as to form a molten metal layer thereon. While remelting the surface, a magnetic field is generated coaxially with...
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5043554 |
Plasma-arc cutting apparatus having means for deflecting plasma arc
A plasma-arc cutting apparatus having a plasma torch producing a plasma arc and cutting a workpiece with the plasma arc, the plasma torch including a nozzle from whcih the plasma arc is ejected...
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4999476 |
Machine for pressure welding workpieces heated with arc moving in magnetic field
The machine incorporates two clamping means, a static one fitted to a bedframe and a movable one mounted on rods which are attached to upsetting hydraulic cylinders with their ends with provision...
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4995805 |
Method and apparatus for increasing radiant heat production of hydrocarbon fuel combustion systems
A method and apparatus for increasing radiant heat production of hydrocarbon fuel combustion systems are provided. In one aspect, the apparatus includes a pair of spaced electrodes through which a...
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4975558 |
System for control of weld arc development
A method of welding metals wherein the size and shape of a weld pool as w as the traversing of the arc from one metal to the other is commanded magnetically by predetermined data, which data is...
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4965431 |
Sweep welding method and apparatus therefor
A method and apparatus for welding a tube to a tube plate such as in a vehicular radiator core are provided wherein a tube end formed by a tube end sidewall protrudes through an aperture in the...
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4864096 |
Transfer arc torch and reactor vessel
A transferred arc torch is comprised of a first electrode surrounded by a coil. A second electrode is positioned adjacent to the first electrode so as to provide a small gap therebetween for...
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