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JP2003302034A |
To provide a melting furnace and an incineration ash melting method wherein a plasma torch is automatically inserted into a furnace body, the same is evacuated to the outside of the furnace body, and a tip of the plasma torch is moved lo...
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JP3456066B2 |
To provide another magnetic field to eliminate outward deviation of an arc discharge at an arc generation point being affected by a magnetic field of a feeder circuit in a DC arc furnace. In a DC arc furnace 5, a voltage is applied betwe...
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JP2003279269A |
To facilitate maintenance of a furnace body, and to improve the service life by maintaining a heating quantity even if source voltage drops, performing stable operation in a specific processing time, improving a heating balance of respec...
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JP2003528217A |
A metal alloy, such as steel, is manufactured in an electric arc furnace system equipped with at least one sensor, at least one a controller including a logic program and a variable valve in fluid communication with the furnace and a mat...
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JP2003262468A |
To provide a sleeve brick for an electrode hole that can improve the unit consumption of an electrode by preventing the generation of spark between the electrode and the sleeve brick with simple constitution.This sleeve brick 20 for the ...
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JP2003254517A |
To provide an incinerator for leaving no unburnt substances when burning an incineration object, and generating no toxic substances such as malodor, smoke dust, and dioxin.This incinerator 11 has at least a primary combustion chamber 12,...
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JP3440267B2 |
To evaluate the burying situation into slug of arc in the refining period of an arc fusion furnace. To detect the vibration which is generated from the arc 1 being a heat source and is transmitted to a furnace shell 6, a vibration sensor...
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JP2003522299A |
A plasma arc reactor has first (5) and second (10) electrodes spaced apart to achieve plasma arc in between; inlet for introducing plasma gas (25) in space between the electrodes; and plasma arc generator. The first electrode has a chann...
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JP2003197556A |
To provide an optical heating apparatus capable of compensating for a deteriorated capacitor by controlling a charging voltage, or notifying abnormality in a discharge circuit, on the basis of a discharge current measured using a current...
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JP3424259B2 |
PURPOSE: To contrive the improvement of the melting efficiency of material, prevention of the wear of the peripheral wall of a furnace and the reduction of the size of the furnace body by a method wherein two upper electrodes are provide...
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JP2003183807A |
To provide a continuous type vacuum carburization furnace which can prevent the occurrence of uneven carburization of a treated object in the continuous vacuum carburization of the object.A heater 116 and a gas supply port 120 are instal...
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JP3409375B2 |
PURPOSE: To provide an electrode screwing tool which requires no large rotating driving force and can be easily removed from an electrode. CONSTITUTION: A plug 3 is fixed to the lower part of a frame 2 with the bottom up, and a ring 10 t...
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JP2003133054A |
To provide an electrode elevation control system for an A.C. arc furnace capable of eliminating a steady-state difference conventionally generated in a current, setting part of a voltage/current control circuit to realize correct control...
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JP2003130547A |
To improve productivity of a product by agitation of molten metal in an AC electric furnace for generating the molten metal.A linear (or circular) molten metal agitating device 4 is closely arranged from an external part on the bottom si...
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JP2003113431A |
To provide a metal melting technology for easily manufacturing an alloy having a uniform composition by using a water-cooled hearth.In a process for melting a metal by using the water cooled hearth, which disposes a metal sample to be me...
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JP3393937B2 |
PURPOSE: To keep the temperature of the tubular wall of a rod-like lamp constant and keep the quantity of light constant in the whole range of the lamp. CONSTITUTION: A reflector 22 is set in the back side of an ultraviolet lamp 2 1 so a...
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JP3392753B2 |
To appropriately estimate conditions in a melting furnace by using two or more input signals such as voltage between a main electrode and a furnace bottom electrode, current flowing between these electrodes, insertion position of the mai...
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JP3390773B2 |
PURPOSE: To enable the application of a conductive antioxidant material to an electrode chuck and improve the antioxidant effects of the material at high temps. by compounding a fire-resistant aggregate, a binder, and a graphitized carbo...
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JP2003086351A |
To provide a plasma heating device, of which, the volume of current supplied for heating is made big, and the power supplied for heating is increased by raising the arc voltage.The plasma heating device comprises a direct current power s...
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JP2003086350A |
To restrain generation of a side arc.For a twin torch plasma heating device, a cathode side plasma torch is composed of a cathode electrode radiating a plasma arc from its top end part toward an object, a cathode side nozzle covering the...
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JP2003084166A |
To provide a multicore optical fiber discharge heating method and a discharge heating device which can uniformly apply heat energy to all multicore optical fibers in discharge heating for fusion-splicing connection and additional dischar...
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JP2003083517A |
To provide a waste plasma melting method and a waste plasma melting device suitable for it in which the number of maintenances can be decreased and the stable heating and plasma melting operation of waste can be carried out.In the waste ...
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JP2003080372A |
To provide a joining device for covered wire which controls the quantity of heat given to a covered wire in accordance with the setting and improves the joining quality.In a welding head 10, at the initial stage of welding, all of main e...
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JP3387366B2 |
To make maintenance easy and to prevent the effects of splash generation within a furnace or combustion gas by fixing a vibration sensor to the outer surface of the outer wall of an arc furnace, detecting the furnace body vibration gener...
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JP2003075678A |
To enable improved fusion splicing by controlling an inter-electrode interval in accordance with the number of coated optical fibers in welding multiple optical fibers.The core fibers f,... of both multiple optical fibers F, F to be conn...
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JP2003068445A |
To provide electrode elevation control equipment in a plasma melting furnace, which can perform up-and-down operation easily on the occasion of rising and falling the electrode.In the middle of the electrode height instruction output cir...
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JP3379904B2 |
To surely start discharge so as to manage a discharge start timing for ball generation, to form the ball of the excellent stability of a ball size and sphericity with less eccentricity, and to generate a soft ball further so as to perfor...
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JP2003042660A |
To improve the productivity of a product with the aid of stirring of a molten metal in a direct current electric furnace for producing the molten metal. A molten metal stirring apparatus 4 of an induction motor type is provided on a bott...
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JP2003501791A |
The aim of the invention is to improve the cooling of the bottom electrodes (1) of metallurgical melting vessels. To this end, a cooling plate (5) is situated beneath the support plate (2) on which the contact elements (3) are supported....
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JP2003501789A |
A method for the continuous determination of the distance between an electrode tip and level of a bath in an electric arc furnace so as to be able to exactly determine electric energy consumption per tonne of scrap actually melted, elect...
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JP2003501612A |
The aim of the invention is to provide a means of also cooling the lower part of electric arc furnaces and/or resistance furnaces. To this end, said lower part-the actual melting vessel (4)-is surrounded with a jacket (9) at a certain di...
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JP2003501271A |
A locking assembly and a process for electrode or ingot formation that include a stub, a locking member, and a support member. The locking member removably extends through the support member and at least a portion of the stub. Molten mat...
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JP3362316B2 |
An electronic control apparatus in which each device unit is detachably mounted on an open front portion of a box-shaped main body by a press-and-clamp engaging mechanism. A nail plate is formed on both side faces of a terminal block. By...
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JP2002543569A |
The invention pertains to a process and to a device for supplying current to an electric-arc melting unit for melting and heating metal, especially steel, with a three-phase a.c. source, which sends the current via devices for producing ...
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JP2002350067A |
To provide a system that can more efficiently operate an electric arc furnace for coherent jet practice or other practice. A quadrilateral assembly (40) supplies one or more coherent jets (41) and, preferably, a plurality of oxidant flow...
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JP2002346762A |
To enable consistent welding by lower current by limiting a current- earring area of welding members to each other. A resistance welding equipment comprises a pre-heating means which heats a weld part 8 of at least one weld material 1 ou...
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JP2002340481A |
To prevent the expansion of damage in a cathode side plasma torch and an anode side plasma torch by automatically detecting abnormality in a plasma arc and automatically stopping heating operation upon generating abnormality in the plasm...
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JP3351540B2 |
The present invention resides in improved graphite nipples which are suitable for connecting graphite electrodes. The graphite nipples are prepared by adding mesophase pitch-based carbon fibers into a typical nipple extrusion blend.
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JP2002333285A |
To provide a melting method using plasma arc and a plasma arc melting furnace in which melting quantity can be doubled inexpensively.Manufacturing cost of a plasma arc melting furnace 1 can be halved by arranging electrodes 3 made direct...
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JP3341609B2 |
To obtain a DC arc melting furnace having high heat transfer efficiency from arc heat and gas generated in the furnace to scrap by suppressing a decrease in mean input power without raising a movable electrode at the time of instantaneou...
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JP2002302703A |
To provide a method for producing an alloy strip having a stable quality and a uniform thickness at high producing efficiency without clogging in a discharging hole of the molten alloy, obtained by melting granular metals in a pot.In the...
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JP2002296147A |
To provide a method capable of easily and rapidly estimating wavelength variable properties of a wavelength variable semiconductor laser.The test system is composed of a power source that supplies current to the wavelength variable semic...
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JP3332927B2 |
PCT No. PCT/DE95/00452 Sec. 371 Date Dec. 5, 1996 Sec. 102(e) Date Dec. 5, 1996 PCT Filed Mar. 29, 1995 PCT Pub. No. WO95/27084 PCT Pub. Date Oct. 12, 1995A metallurgical vessel heated by direct current, particularly for the production o...
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JP3333112B2 |
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JP3331563B2 |
PURPOSE:To improve the heating efficiency by electron beams, by partially enclosing the electron beams with a continuously traveling substrate in a vacuum at the time of irradiating the traveling substrate with the electron beams to heat...
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JP2002276910A |
To provide a plasma torch to generate arc plasma throughout a wide range in a skirt-form and increase an arc plasma size or to provide a disposing device using the plasma torch.In the disposing device for waste to generate arc plasma by ...
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JP3324169B2 |
PURPOSE: To reduce deterioration of a constrictor disk due to heat by improving the efficiency of cooling of the constrictor disk by cooling water. CONSTITUTION: In a constrictor type arc heater having a construction wherein a constricto...
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JP3324177B2 |
PURPOSE: To protect an O ring against heat by preventing an insulating member from becoming heated and at the same time, reduce a work load in the fabrication of an activation gas induction flow path. CONSTITUTION: The constrictor-type a...
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JP2002260540A |
To provide a heating pipe which can be heated instantaneously and uniformly.This electronic heating pipe comprises a cylindrical shaped heating pipe of which the outer side face forms a heating face, in addition an electron source which ...
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JP3321880B2 |
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