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WO/1998/019817A1 |
An electrostatic ion jet source design, based on inertial electrostatic confinement (IEC) technology. According to the invention, the inertial electrostatic confinement jet source employs a configuration that is compatible with the gener...
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WO/1998/020499A1 |
A low cost small-scale tunable X-ray source, comprising a spherical-electron injected inertial electrostatic confinement (IEC) device. Within a spherical containment vessel (402) recirculatory focusing electrons are accelerated by a sphe...
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WO/1998/018591A1 |
The invention relates to a plasma torch in which the position of the electrode (4) with respect to the orifice (11) of the plasma nozzle (5) can be adjusted. The electrode (4) is mounted on the body (3) of the torch via a ball-and-socket...
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WO/1998/019504A1 |
Disclosed is a method and structure for improving alignment of a plasma arc with an axial centerline of a plasma arc torch. At least one of an electrode and nozzle are mounted in respective bores of a cathode block and torch body using a...
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WO/1998/015379A1 |
In the machine and process according to the invention a metal tube (H) to be cut is caused to translate axially along a rectilinear path. The cutting of the tube (H) into lengths is effected by means of one or more plasma torches (180) w...
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WO/1998/002270A1 |
The present invention relates to a method for the plasmic welding of metals using a direct-polarity straight electrical arc. This method uses as plasma generating medium the water vapour instantaneously formed in the burner under the act...
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WO/1998/001256A1 |
A process for coating or welding easily oxidised materials is carried out by applying weld metal powder by a plasma powder welding process with an alternating current or with a direct current and a superimposed alternating current as wel...
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WO/1997/018056A1 |
A cartridge type plasma torch in which expendables can easily be replaced, cooling water and operation gas are securely sealed when expendables are replaced, and the accessibility to a work during operation can be improved, comprising an...
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WO/1997/011813A1 |
An apparatus for two-dimensional machining, which performs a required two-dimensional work by driving a working spindle in accordance with a two-dimensional locus given by a teaching shaft. An area of action of the teaching shaft and an ...
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WO/1997/002919A1 |
A plasma torch, a portion of which is adapted to be contacted with a work (8) while plasma arc from an electrode (1) is permitted to jet from a torch nozzle together with a working gas which inflows from circumference of the electrode. T...
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WO/1997/002917A1 |
A highly efficient processing method based on a high density radical reaction and using a rotating electrode, comprising supplying a large amount of a reaction gas to a processing gap between a processing electrode and an object being pr...
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WO/1997/000740A1 |
A process and device are disclosed for straightening metal parts, in particular sheet metal, sections and/or constructions made of sheet metal or sections. The flame of an indirect plasma arc is brought into contact with the surface of t...
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WO/1996/034715A1 |
A device for plasma welding with transferred arc, for surfacing with hard powders on workpieces (9), including a welding torch (1), a powder dispenser (2) with dosing member (4), and means (3) for conveying the powder from the dispenser ...
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WO/1996/033597A1 |
An electrode member (1) made of one element selected from the same group of hafnium, zirconium, and titanium, or a mixture of elements of the group is buried in the end portion of an electrode body (1a) and the member (1) is brazed to th...
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WO/1996/023618A1 |
A driving device (10) for the vertical adjustment of the burner (14) of a gas cutting machine having a regulating device, e.g. a capacitive distance regulator, which holds the burner at a variable predeterminable vertical distance from t...
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WO/1996/021339A1 |
An alignment device and method for a plasma arc torch system which corrects the position of a torch in relation to the receptacle for a successful union. The device and method mechanically align in situ electrical contacts, gas, and wate...
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WO/1996/018747A1 |
In an internal combustion engine, a cylinder member, such as a valve, a seat portion, a piston or a cylinder liner, is provided with a welded high-temperature corrosion-resistant facing alloy. The hardness of the welded alloy has been in...
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WO/1996/018283A1 |
Plasma jets are converged in encircling relationship about a common axis along which a reactant stream is introduced. The reactant stream is confined by the converging and confining plasma jets the shape and direction of flow of which ar...
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WO/1996/014184A1 |
The invention relates to an assembly for the powder feed system of plasma or laser welding equipment, for instance. In welding equipment the filler material is fed from a powder hopper via a dosing device into the feed channel of the wel...
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WO/1996/012914A1 |
Pressure vessel made of aluminium for transport and storage of fluids. The vessel comprises two mainly semi-spherical, forged parts (2), that are joined together along their periphery by means of plasma welding. Each semi-spherical part ...
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WO/1996/011768A1 |
An apparatus for mounting a cutting torch to a shape cutting machine is adapted to detect contact between the torch and a workpiece in the vertical direction, and between the torch and an obstruction in a lateral direction. The mounting ...
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WO/1996/006572A1 |
The invention concerns a device to improve the coagulation of moderately or heavily bleeding live human and animal tissue and to form an eschar by means of a plasma jet. The device comprises plasma-generating means consisting of an elect...
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WO/1996/004098A1 |
A high velocity, high pressure plasma gun operates in stable fashion and with a relatively constant arc input power using a highly combustible arc gas such as nitrogen. The gun (12) includes an anode (30) having an internal arc chamber a...
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WO/1996/004771A1 |
An insert securely disposed in a bottom end of an electrode has an exposed emission surface shaped to define a recess in the insert, wherein the recess is initially dimensioned as a function of the operating current level of the torch, t...
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WO/1996/000840A1 |
The present invention relates to a method for refurbishing or restoring a turbine vane or other airfoil to restore a desired flow area. The method in one embodiment comprises the steps of: providing a plate to be used to restore the flow...
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WO/1995/035396A1 |
A nickel-based polycrystalline alloy comprising 0.03-1.9 % hafnium, 0.003-0.32 % boron, 0.02-0.16 % yttrium and 0.007-0.35 % zirconium is disclosed. A method of repairing nickel-based superalloy substrates using the above-described alloy...
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WO/1995/032072A1 |
A method and an apparatus for plasma cutting wich can produce a cut product having less dross affixed thereto and a clear cut surface and which is capable of high-speed cutting even at the time of piercing. Due to this, at the time of pi...
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WO/1995/028510A1 |
A looped energy system for the generation of excess energy available to do work is disclosed. The system comprises an electrolysis cell unit (150) receiving a supply of water to liberate separated hydrogen gas (154) and oxygen (156) by e...
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WO/1995/026853A1 |
A plasma torch holder for a sheet metal cutting machine, consisting of a body (1) with a mounting flange (4) for the head (5) of the plasma torch (2), at least one engagement member (10) provided on the body (3) for engaging the metal sh...
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WO/1995/026252A1 |
A method and apparatus for detecting non-axisymmetric wear (i.e. grooving 22) of the orifice (12) of the nozzle (13) of a plasma arc torch (1) involves placement of a probe adjacent a plasma jet (21) that emerges from the nozzle (13) suc...
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WO/1995/026253A1 |
An ignitable material (26) is positioned in contact with a slag (8) contained in a plasma arc treatment system having an electrode (10) and an electrical ground (14). The slag is initially at a temperature below a conducting temperature ...
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WO/1995/018521A1 |
A plasma torch which is simple in construction and enables performing cutting of high quality with extremely less adhesion of dross and which provides for a favorable life of an insert. Therefore, an insert (1a) formed from a material of...
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WO/1995/016125A1 |
In already known fuel injection valves, wearing parts such as the armature and the core are provided with wear-resistant layers made for example of chromium, molybdenum or nickel. If the parts of the injection valve are galvanically coat...
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WO/1995/016126A1 |
In already known fuel injection valves, wearing parts such as the armature and the core are provided with wear-resistant layers made for example of chromium, molybdenum or nickel. If the parts of the injection valve are galvanically coat...
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WO/1995/013897A1 |
A profiled end cut is applied to a length of stock pipe in an apparatus wherein the pipe (13) is rotated by a drive head (12) with a plasma cutter (81) moved axially on a trolley (14) in synchrony with rotation under control of a guidanc...
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WO/1995/012965A1 |
A plasma gas swirl flow type plasma torch comprises an electrode body (15), and a nozzle (4) which surrounds a tip end of the electrode body (15) with a plasma gas passage (5) therebetween. At least that portion of the electrode body (15...
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WO/1995/010385A1 |
In a plasma cutting apparatus provided with a plasma torch including an electrode (1), a restriction nozzle (4) disposed so as to surround the electrode (1) via a plasma gas passage, and an assist nozzle (7) which is disposed so as to su...
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WO/1995/007373A1 |
A cell arrangement for electrolysis of water to liberate hydrogen and oxygen gases is described. A cell unit (125) has a stacked arrangement of segmentation disks (114), a first type of (anode) cell plates (90), a second type of (cathode...
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WO/1995/003910A1 |
The invention relates to a plasma torch for making an operating gas into a uniform and intense swirl to render an output of plasma jet more stable, provide a favorable cut quality and extended lives of expandable parts and the like. Thus...
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WO/1994/026446A1 |
Method to create three-dimensional bodies (30), for example models, formers, finished products, semi-finished products, among others, from a medium (12) consisting of particles, by producing a number of cross-sectional layers (25), each ...
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WO/1994/026456A1 |
A plasma arc welding apparatus which includes a plasma torch, and a space retaining member fixed to the plasma torch and positioned at a free end portion thereof between a free end of the plasma torch and a material to be welded, and whi...
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WO/1994/022630A1 |
A plasma arc welding method characterized by the steps of thermally melting a part of an upper work with a plasma arc to form a molten basin, bringing this molten basin, which is retained by surface tension, into contact with a part of a...
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WO/1994/021423A1 |
The invention relates to a collecting device for a cutting machine. The machine comprises a gantry (22) supporting a machining head (24). The collecting device is essentially comprised of a box (28) open at its top part. The box has a le...
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WO/1994/019137A1 |
This invention relates to a plasma are torch capable of using an electrode for a very long period of time even when the frequency in stopping the generation of an arc is high; preventing the occurrence of improper generation of discharge...
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WO/1994/019138A1 |
This invention relates to a plasma cutting method and a NC plasma cutting apparatus, which enable the quality of a bore-cut product obtained by using transferred plasma arc to be improved, and the productive efficiency of such a product ...
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WO/1994/016857A1 |
The invention provides a plasma cutting method and a cutting apparatus, which can be switched between suitable flow rates of a protective gas at the time of piercing and cutting to further produce suitable composition of the protective g...
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WO/1994/015745A1 |
A process for submerged arc welding replacement of hardbanding by material to maintain the strength of a drill pipe is disclosed. For preferred results for build up of drillpipe after hardband removal, process variables that may be contr...
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WO/1994/013424A1 |
Plasma arc or laser cutting uses a mix of reactive (24a) and reducing gas flows (22a) to cut sheets (14) of stainless steel, aluminum and other non-ferrous metals. The reducing gas flow (22a) to the cut varies as a percentage of the tota...
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WO/1994/008747A1 |
A process for plasma arc gouging removal of hardbanding, by a torch (101), from drill pipe (10) rotated by a motorized head stock (30). For plasma arc gouging, electrode stickout is above one inch with substantially constant current powe...
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WO/1994/008748A1 |
This invention relates to a plasma torch. The distal end of the torch has high approach-ability to a workpiece having a complicated shape, does not damage the torch or the workpiece even when a nozzle comes into contact with the workpiec...
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