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JP3001164B2 |
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JP2000018527A |
To prevent the leakage of gas and permit the specifying of a factor for the pressure fluctuation of gas. A plasma melting furnace is constituted of a plasma electrode 2, provided in the upper part of a furnace main body so as to penetrat...
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JP3000080B1 |
[wrap up] [Task] The conventional water-cooled electrode for vacuum has a drawback that the electrical insulation of the water-cooled pipe with respect to the vacuum furnace having the feeding electrode main body of the resistance heatin...
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JP3000053B2 |
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JP3000028B2 |
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JP2998445B2 |
PURPOSE: To perform rapid connection and disconnection between terminal pairs without making direct contact with a terminal by a method wherein a clamp device to clamp together the terminal on the coil side of a cable and a coil terminal...
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JP2000500269A |
During a heating process in a three-phase, electric furnace, power can be controlled by dividing the heating process into intervals and then controlling the average power generated during each of these intervals, and by individually cont...
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JP2994475B2 |
The metallurgical vessel, such as a direct-current arc furnace, comprises a metal housing (1) lined on its inside with refractory material (2), at least one electrode (3) passing through the bottom of the vessel and connected to a termin...
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JPH11351762A |
To prolong lifetime of an electrode by dispersing a part of current flowing through the pin of a furnace bottom electrode to an electrode block thereby reducing heat generation rate of the electrode pin. The furnace bottom electrode comp...
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JP2993021B2 |
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JP2989371B2 |
PURPOSE: To effectively prolong the life of a rod-like heater and a heater protecting tube by providing a local temp. regulator for controlling an opening and closing element based on detection signals from a local temp. detector. CONSTI...
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JP2989800B2 |
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JPH11337270A |
To previously remove many faults occurring according to a deformation of a heater by rotatably equipping a heating furnace with the heater as a heating source of a work charged in the furnace, thereby preventing the deformation of the he...
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JPH11335108A |
To provide an electric furnace for graphitization capable of stably producing graphite powder for a long period of time. This electric furnace for graphitization is equipped with a potential transformer 13 for dropping the voltage of a c...
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JPH11335112A |
To sufficiently concentrate heat at the central part of a furnace body even in the case of using short electrodes, in time of the accident of one electrode, to utilize the other electrode connected in the same potential to the electrode ...
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JPH11335110A |
To continuously obtain graphite powder while controlling the abrasion of electrodes. In this electric furnace for graphitization in which carbon powder packed in a furnace body and an electric current is sent to electrodes 9a and 9b oppo...
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JPH11335113A |
To improve the durabilities of electrodes and supporting parts to hold and to insulate the electrodes by suppressing their thermal degradation to a minimum. Plural sets of the electrodes 9a and 9b opposingly set between a carbon powder f...
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JPH11335109A |
To continuously obtain graphite powder while controlling the abrasion of electrodes. In this electric furnace for graphitization in which carbon powder packed in a furnace body 1 and an electric current is sent to electrodes 9a and 9b op...
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JPH11335111A |
To suppress the overheating of a furnace body, to control the local abrasion of electrodes and to avoid the fluctuation of a current path and the instability of the actions of the furnace body. In this electric furnace for graphitization...
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JP2601854Y2 |
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JP2983327B2 |
PURPOSE:To obtain a vacuum refining apparatus capable of attaining a high vacuum degree in a vacuum ladle refining, improving degassing degree of oxygen, hydrogen, etc., shortening treating time, improving the productivity and executing ...
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JP2601611Y2 |
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JP2984173B2 |
PURPOSE: To provide a ladle refinery electrode apparatus which is capable of preventing a refractory layer of a ladle from being damaged restricting spark generation between fire prevention boards and of contributing to the refractory la...
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JP2983413B2 |
PURPOSE: To improve the efficiency of arc heat transfer to molten steel and reduce the heat load on water-cooled panels of a furnace wall by a method wherein an electrode supporting mechanism is tiltable synchronously with one of arc fur...
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JP2983918B2 |
To reduce the maintenance frequency by prolonging the lifetime of a molybdenum heating element for a heating furnace. In this connection structure of a molybdenum heating element, several molybdenum auxiliary fine wires 46 are contacted ...
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JPH11325744A |
To supply a heating current for graphitization with an anticipated level without generating sparks between opposing electrodes. The specific halfway position between a carbon powder-charging port and a carbon powder-collecting port in a ...
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JPH11322320A |
To provide an electric furnace capable of continuously withdrawing graphitized powder, facilitated in control of the withdrawal quantity, and also capable of efficiently cooling the graphitized powder. This electric furnace is designed t...
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JP2979816B2 |
PURPOSE: To shorten the operating time of an arc furnace by making automatic operation from the electrode upper limit position without requiring manual intervention of the operator, and letting it to descend until current starts to flow ...
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JP2978360B2 |
PURPOSE: To efficiently generate electromagnetic force and control the range affected by the force by applying AC to an induction coil for generating the force in molten metal, performing amplitude modulation with the frequency for gener...
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JP2601148Y2 |
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JP2973164B2 |
PURPOSE: To provide a hot plate for molten metal holding vessel which can serve stably for a long period of time. CONSTITUTION: A sheet-form heat emitting body A is formed by embedding an electric heater wire in a heat resistant insulati...
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JP2973163B2 |
PURPOSE: To provide a hot plate for molten metal holding vessel which can serve stably for a long period of time. CONSTITUTION: A sheet-form heat emitting body A is formed by embedding an electric heater wire in a heat resistant insulati...
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JP2601149Y2 |
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JP2973162B2 |
PURPOSE: To provide a hot plate for molten metal.holding vessel which can serve stably for a long period of time by providing ceramic type covering layer reinforced with a ceramic fiber textile over the whole outside surface of a box-sha...
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JP2969754B2 |
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JPH11302719A |
To regenerate the impurities, such as phosphorus and sulfur, in steel making slag as the steelmaking slag by migrating these impurities into molten scrap iron sunk on the bottom of a furnace and making them absorbed. This method consists...
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JPH11294967A |
To allow a gripping tool to automatically grip a broken electrode by lowering the gripping tool onto the broken electrode even when the direction of the gripping tool is different from that for pinching the broken electrode, and also wit...
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JPH11297464A |
To provide stable heating distribution by providing a magnetic measuring system for finding the eddy current intensity distribution and a calorific value by measuring a magnetic sensor around a molten furnace. The distribution of an eddy...
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JPH11297627A |
To provide a heater with an increased power, an improved response characteristic, a uniform heat treatment, and a long life by cutting a plate- shaped resistance heating body in a wave shape to form a linear resistance heating body. A he...
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JPH11293327A |
To provide a steelmaking method with a DC electric furnace for efficiently executing desulfurize-refining, at the time of producing molten steel by melting an iron-containing cold material of scrap, etc., with the DC electric furnace. At...
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JP2968183B2 |
PURPOSE: To perform a stable electrical energization to be attained and to enable an automatic operation of a furnace to be carried out continuously by a method wherein a proper electrode spacing is selected within a predetermined range ...
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JP2968142B2 |
PURPOSE: To constitute a furnace so as to be commonly used to melting and refining by arranging a tuyere and a lower electrode at the lower part of the furnace body and an swingable upper electrode and a hood provided with an inserting h...
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JP2964314B2 |
To perfectly prevent a pedestal from being deformed so as to accurately and stably support a container by providing a heat generating wire protrusion avoiding lever extending in an axial direction with blocking part of a heater containin...
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JP2964228B2 |
To improve heat efficiency by arranging a plurality of magnets by allowing identical electrodes to oppose an oven wall for constituting an oven body at the outer periphery of an oven body. An oven wall 2 of a cylindrical oven body 1 wher...
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JPH11281255A |
To convert a solid material into fused state with maximum efficiency at minimum cost by making a decision whether an electrode is located at a position suitable for light covering arc system during movement thereof and monitoring the ele...
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JP2962150B2 |
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JPH11273849A |
To control heating effectively by connecting three-phase power source to multiple heating coils and feeding energy to a position that needs heating most by selectively switching the coils. Heating coils 5, 6, 5', 6' are wound around the ...
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JPH11273850A |
To increase productivity by shortening the cycle time of melting and tapping work for a flotation melting device. A changeover device 9 is provided for changing over an electrical path coming from an alternating-current power supply 3 fr...
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JPH11269538A |
To provide an induction heating apparatus, with which a refractory layer is prevented from the damage caused by the contact with a heating material passing through a heating passage and the stable operation can be executed over a long ti...
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JP2956014B2 |
In an induction furnace for the synthesis of glasses, in particular fluorozirconate glasses for optical fibres for telecommunications, the support device (6') for the crucible (3) is associated with a pair of sleeves (7, 9) between which...
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