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WO/1983/002710A1 |
An electric glass-melting furnace (10) wherein the current flow between electrodes is equalized to provide for even heating in the molten glass. A first embodiment comprises: a chamber for holding a body of molten glass (18), arc electro...
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WO/1982/004519A1 |
The electric arc control device may be applied to an arc furnace comprising at least one reaction chamber wherein at least two electrodes are arranged, a fuel injection device, optionally an other device for introducing a combustive mate...
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WO/1982/004371A2 |
The insufficiencies in the electric devices of the split electrode circuit of an arc furnace may be remedied by eliminating the current conductive function of the retaining jaws by means of an axial connection device while shifting the p...
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WO/1982/004372A1 |
A method and device for clamping the electrode contact shoes (2) around the electrode (1) of an electric furnace, comprising one pressure element (3) which is advantageously hydraulically operated and uniform and which surrounds the elec...
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WO/1981/003101A1 |
In order to reduce the ohmic and inductive losses associated to the high current between the transformer and the electrodes (4, 5) of an electric oven (1), there are used, instead of cables, rails (17, 21) supplied by the source and on w...
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WO/1981/002430A1 |
The method provides for placing a plane workpiece (1) in its initial position horizontally between cooled beams (2 and 3) of a crystallizer. Plasma-arc burners (6) are placed in a row above the workpiece (1) and across its parallel edges...
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WO/1980/001834A1 |
A rotating tower of an electric oven is located in order to rotate about a pivot, on the upper plate (23) of the platform and rests by means of wheels on a rail (18) having the form of an arc of a circle, supported by a layer of a suppor...
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JP2023182946A |
To provide an AC arc furnace capable of dissolving unevenness of a temperature distribution in a furnace and melting scrap in a short time.An AC arc furnace comprises: plural power fixed electrodes disposed according to respective phases...
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JP2023167795A |
To provide an electrode lifting control device which optimizes the efficiency of dissolution of scrap.An electrode lifting control device comprises: impedance deviation calculation means which calculates an impedance deviation by subtrac...
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JP7373121B2 |
To provide a flash heating device, and a control method of a flash discharge lamp that can confirm the lighting/non-lighting of a flash discharge lamp immediately after the start of start control, and minimizes the energy loss required f...
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JP2023048398A |
To provide an electrode lifting control device capable of securing sufficient input power.An electrode lifting control device in an embodiment includes harmonic removal calculation means for extracting a fundamental wave voltage signal b...
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JP7244196B2 |
To provide an arc furnace electrode lifting device with improved electrode control performance.An arc furnace electrode lifting device according to an embodiment includes: a first variable coefficient setting unit that measures a first v...
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JP7137226B2 |
Multiple magnetic field sensors are arranged around a current-containing volume at multiple longitudinal and circumferential positions. Each sensor measures multiple magnetic field components and is characterized by one or more calibrati...
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JP7074904B1 |
To provide a graphite electrode with reduced loosening of a screw between a nipple and a socket. A graphite electrode includes a pole having a female screw-shaped socket at an end and a male screw-shaped nipple that can be fastened to th...
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JP2022059594A |
To provide an electrode paste for a self-firing electrode which can be used as an electrode for an electric furnace for producing low carbon ferrochrome.In an electrode paste 12 for a self-firing electrode for an electric furnace for low...
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JP2022518300A |
The lift plug for lifting the graphite electrode includes a body and an insert coupled to one end of the body, the insert being configured to fit into the graphite electrode to secure the lift plug to the graphite electrode. The lift plu...
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JP7024144B2 |
Provided is a self-baking electrode which can be used as an electrode in an electric furnace used to produce low-carbon ferro-chromium. The self-baking electrode (10) is formed by filling a cylindrical case (11) with an electrode paste (...
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JP7011456B2 |
Melting plant having a melting chamber which by way of a gas protection hood is separated from the environment, wherein the gas protection hood or another part of the melting chamber encasement has a lead through in which an electrode ro...
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JP2022012956A |
To provide a metal melting device, when a metallic material is melted by arc discharge from an electrode, capable of controlling the height position of the electrode in consideration of plural phenomena related to the arc discharge.In a ...
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JP3235776U |
To provide a carbon electrode rod take-out tool for preventing a carbon electrode rod for a phototherapy device from being detached from a holder and erroneously intruding into a light emitter when the carbon electrode rod is shortened a...
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JP3235775U |
To provide a phototherapy device capable of easily removing a carbon electrode rod which has come off from a holder and has erroneously entered into a light emitter housing when the carbon electrode rod for a phototherapy device is short...
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JP3235777U |
To provide a structure in which a main body of an irradiator and a housing of a light emitter can be easily attached to and detached from a phototherapy device. This is a phototherapy device that irradiates an affected area with arc ligh...
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JP6967900B2 |
To improve plasma stability.A plasma generator comprises: a straight rod-shaped graphite plasma torch 10; a torch holder 12 which holds the plasma torch 10 in such a manner that the plasma torch 10 inclines at a predetermined angle with ...
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JP6953256B2 |
To provide a consumable electrode type arc melting furnace capable of easily separating a rod plug from a stub socket by effectively preventing unintended engagement of the rod plug into the stub socket while ensuring required electrical...
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JP6910741B2 |
To provide an electrode lifting device for an arc furnace allowing simple and accurate setting of sensitivity and a dead zone of electrode lifting action.An electrode lifting device for an arc furnace comprises: a current and voltage det...
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JP6879240B2 |
To set accurately a position of an arc electrode, and to thereby reduce a deposit rate of an attachment of silica onto the inner surface of a quartz glass crucible.In a positioning method of an arc electrode used for manufacturing a quar...
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JP6869790B2 |
A control system for a vacuum arc remelting (VAR) process for a metal includes a direct current (DC) power source, a ram drive, voltage drip short sensor, and a controller, which includes a processor. The drip short sensor may be configu...
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JP2021501834A |
In particular, a melting furnace (1) for producing a metal alloy by melting an alloy component, which is a cylindrical electrode rod (40) having a crucible (10) and an attached self-consumable electrode (41). The electrode rod (40) is pr...
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JP6780403B2 |
To provide an aggregate of sponge titanium grains crushed and size-adjusted to a prescribed size, excellent in hanging resistance and moldability in cold rolling.Provided is an aggregate of sponge titanium grains in which a convex ratio ...
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JP6733887B2 |
To provide a pan preheater capable of further reducing an energy loss by eliminating a variation in heating of a pan inner wall.A pan preheater having a pan 1 having an opening part of becoming a pouring port of molten metal in an upper ...
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JP2020064707A |
To solve the problem that, although only a surface of an object in a heating chamber can be heated fast by injecting generated plasma in a gaseous state in a configuration using a conventional plasma generation system, since a cooking ob...
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JP6640566B2 |
To provide an arc furnace electrode lifting device which can back up a limit switch without restrictions on hardware.An arc furnace electrode lifting device 10 comprises: an electrode travel distance calculation unit 18 which outputs a t...
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JP6618855B2 |
To provide a screw-in device that is a mechanism capable of setting to a proper rotational speed in screwing-in, and can control a lowering speed together with rotation.A screw-in device 1 includes: a shackle 3 attached to a crane hook 4...
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JP6583614B2 |
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JP6570479B2 |
To provide an electrode lifting device which can lower an electrode at a high speed without depending on any visual observation and without measuring a voltage and a current between the electrode and a scrap.One embodiment comprises: a f...
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JP6566439B2 |
To provide an arc furnace electrode lifting device capable of continuing the operation stably, by stopping the lifting and lowering of an electrode, when the arc length of other phase is varied by variation of the impedance during arc di...
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JP6530413B2 |
A method of detecting an open arc in a DC plasma arc furnace which is based on detecting a linear decrease in the log of the magnitude of the frequency spectrum of the voltage between the anode and cathode.
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JP6482442B2 |
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JP6476946B2 |
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JP6472054B2 |
To provide a reactive power compensation apparatus capable of improving a power factor of a bus bar and input electric power of an arc furnace and reducing power cost by stopping flicker compensation control when the generation quantity ...
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JP2018144072A |
To provide an oxidation prevention device capable of storing a graphite electrode without time and labor and suppressing its wear caused by oxidation.Provided is a graphite electrode oxidation prevention device comprising: graphite elect...
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JP6363178B2 |
A heat treatment apparatus for heat treating an interior surface of a longitudinally extending cavity of a target structure has a processing head which comprises a longitudinally extending central support member and distal and proximal e...
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JPWO2017022713A1 |
To realize miniaturization of an electromagnetic wave heating device using steam. The electromagnetic wave heating device is installed on the heating chamber and the first wall surface of the heating chamber, and has a flat antenna that ...
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JP6324435B2 |
An electrode holder (10) for use in a furnace for melting a batch material to form molten glass is disclosed comprising a refractory coated nose member (16) presented to and in contact with a molten glass material contained within the fu...
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JP6304693B2 |
A method determines the consumption of electrode material during the operation of an electric furnace, particularly an arc furnace for producing steel. The method determines a weight of an electrode column, which is arranged in the elect...
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JP6231950B2 |
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JP6143368B2 |
The present invention relates to a remote wireless communication control system for submerged arc furnace reactive compensation. The system includes a remote wireless communication control machine and a submerged arc furnace reactive com...
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JP6140371B2 |
An electric arc furnace (2) and to a method for operating an electric arc furnace having at least one electrode (4a, 4b, 4c) for generating an electric arc (6a, 6b, 6c), in which the desired value of the current (I) guided to the electro...
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JP6132181B2 |
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JP6068738B1 |
The filament by which a heating device is arranged between a heater, an electronic light reflector, and the above-mentioned heater and the above-mentioned electronic light reflector, The heating power supply which supplies alternating cu...
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