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JP3039132B2 |
PURPOSE: To prevent the casting temp. from lowering to the lower limit of allowable value until the whole received molten metal is used up even in a large crucible, at the time of casting small size brass casting articles in low pressure...
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JP2000109972A |
To provide an induction heating device which unnecessitates a funnel even in the case of being a small pouring hole in a mold.The device is constituted with a crucible, in which plural electric conductive segments 2 are lined up as cylin...
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JP3033201B2 |
PURPOSE:To prevent discharge of low m.p metal of gaseous zinc, etc., to environment, which is a problem, e.g. in the stage of melting treatment of galvernized steel sheet at the time of removing the low m.p. metal from the metal to be co...
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JP2000105083A |
To obtain a system for melting a material thrown into a crucible by heating through a heating means in which molten liquid can be dropped while securing the melting system at a specified position by making a molten outlet at the lower pa...
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JP3028736B2 |
PURPOSE: To continuously cast an ingot by satisfying both of the prevention of electrical short circuit between a coil and a crucible and the high melting efficiency of high m.p. and high reactive metal, (e.g. Ti, Ti alloy) with an induc...
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JP3028314B1 |
A device 1 for induction-heat melting treatment of metal-oxide-powders is comprised of a closed hopper 2, a heat-resistant piping 3, for supplying a powder to an induction heating pipe 5, an induction heating pipe 5, which is made of die...
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JP2000088467A |
To facilitate tapping of a molten metal from a copper crucible of an incompletely floating melting apparatus by providing a bottom hole at a bottom of the crucible, and providing a mechanically and electrically integral bottom cover at t...
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JP2000091066A |
To enable plating of a high melting point material, and to enable high purity plating by melting metal by upward projecting the upper end of the molten metal melted in a levitating melter from the upper end of a crucible. Metal being inp...
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JP3025354B2 |
PURPOSE: To heat metallic blocks with high-frequency induction while fluidizing blocks in low power consumption. CONSTITUTION: A metal-made cylindrical body 11 forming plural slits 16 radiately extending along a radial direction and sett...
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JP3023774B2 |
To reduce phosphorus concn. in stainless steel. Molten calcium-calcium fluoride base flux containing high concn. of the calcium is made to exist between floated-molten stainless molten metal and a water-cooling crucible by using a cold c...
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JP3023786B1 |
To efficiently produce a stainless steel having extra-low oxygen by using molten calcium fluoride as flux, perfectly floating up and melting the stainless steel and transferring oxide base inclusion into the flux. Into a water cooling me...
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JP3022764B2 |
To make it possible to detect the leakage of molten metal of a crucible induction furnace and to continuously measure the temperature of the metal without influence to the life of a refractory by constituting by a molten metal leakage se...
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JP2000074569A |
To obtain a crucible furnace used in the case of melting and/or refining nonferrous metals by alleviating working of three severe factors such as dirt, severe and heavy environments for maintenance of a furnace wall, effectively maintain...
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JP2000074753A |
To make detectable the temp./oxygen concn. by a convenient method, without using complicated electric wirings or measuring circuits by constituting a detector for detecting signals from a specified ceramic sintered compact. E.g., 6 sheet...
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JP2000074568A |
To facilitate vacuum degassing effect of a molten metal by increasing agitation force of a molten metal by lowering operation frequency of an induction coil while a treatment for removing impurities is carried out. A matter to be melted ...
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JP3019220B2 |
A method and apparatus for countergravity casting of molten metal with exclusion of air in a gas-pervious mold sealed in an evacuable chamber having a free end of a fill pipe for the mold cavities projecting therefrom. The fill pipe is m...
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JP3016124B2 |
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JP2000055567A |
To provide a device neither requiring any electrical conductive layer nor electrical conductor. An induction heating device in stalled within a vacuum container 6 for performing an induction heating of material 3 to be heated by energizi...
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JP2000053490A |
To withdraw a melting pot after cooling without using a jig by demarcating the inside of the side face of a supporting crucible supporting a melting pot by the curved face except the cylindrical face. The inside of the side face of a sup...
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JP2000035284A |
To provide a heating furnace structure for lengthening a lifetime of a graphite crucible to a long time. The heating furnace 1 is divided into an upper cover 2 and a lower cover 3. A gas burner 5 is mounted at an upper outer peripheral s...
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JP2000035364A |
To improve the relationship of the thermal resistance of each part and to improve temperature measurement accuracy, for example, by filling at least two kinds of fillers with different thermal conductivity between the sheathing protectio...
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JP2999100B2 |
PURPOSE: To provide a holding device stably holding molten metal by a high pushing-up force. CONSTITUTION: In a molten metal holding device in which an alternating magnetic flux 9 is generated in the horizontal direction at the lower edg...
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JP3000028B2 |
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JP2000500072A |
PCT No. PCT/SE96/01446 Sec. 371 Date May 15, 1998 Sec. 102(e) Date May 15, 1998 PCT Filed Nov. 11, 1996 PCT Pub. No. WO97/18337 PCT Pub. Date May 22, 1997A method for producing metal castings comprising the steps of: i) providing a condi...
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JP2989800B2 |
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JP2984206B2 |
To accurately fit the tundish stopper to a spindle in a short time, make the stopper mechanically and thermally resistant, and prevent the spindle from flawing by integrally molding the stopper made of a refractory material with a nut of...
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JP2973159B2 |
PURPOSE: To surely cast small capacity of molten metal into a mold without cooling. CONSTITUTION: A metal melting furnace is constituted with a crucible 10 being openable in a bottom wall, a furnace body for incorporating the crucible an...
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JP2601148Y2 |
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JP2601149Y2 |
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JP2972787B2 |
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JP2969754B2 |
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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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JP2967092B2 |
A plurality of segments 12 respectively formed of an electrically insulated conductive material such as copper or the like are disposed inside an induction coil 1 in the peripheral direction of the induction coil 1 to thereby construct a...
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JPH11287563A |
To accelerate the entrapment of a melt material into a molten metal by a method wherein eddy current movement is generated in molten metal in a crucible and the direction of an eddy current is set to have inclination to a horizontal line...
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JPH11285810A |
To enable to quick melt while preventing impurity from intruding at a low cost by selectively and sequentially executing induction-heating to plural solid alloy charging constituted elements separated in a refractory melting vessel. In a...
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JPH11287564A |
To suppress the overheating of the shell of a crucible to heat the shell by inducing an eddy current to the shell by a method wherein a laterally long slit is formed in the surface opposite to an eddy current generating device, of the sh...
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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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JP2959885B2 |
PURPOSE: To enhance the temp. control accuracy for a molten metal by performing electric power control of a melting furnace in which the amount of slag generation at the surface of the molten metal is taken into consideration. CONSTITUTI...
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JPH11268910A |
To provide a method for producing a γ-phase aluminum oxide nitride of an inverse-spinel structure capable of rapidly and readily synthesizing high- purity alon. An AlN powder is mixed with an α-Al2O3 powder and the resultant mixed powd...
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JPH11264669A |
To ensure melting suitable for the type of metal by providing a first stage melting process for enlarging the melting range by induction heating an object to be melted, and a second stage melting process for enlarging the melting range t...
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JP2954896B2 |
To provide a melt extractor which has excellent reliability and controllability, which is free not only from an electrical short of a metal furnace body and a metal flow-down nozzle but also from the noise interference between a high-fre...
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JPH11248362A |
To provide a crucible furnace for efficiently removing an overflowing material or leakage material without problem of a decrease of an efficiency of the furnace or a burning damage of a burner due to the overflowing or leakage material. ...
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JPH11244944A |
To easily correct a deformed crucible to almost near the state before using by press-penetrating a punch having almost the max. diameter as the inner diameter of the crucible from the opening end pat while supporting the upper end or the...
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JPH11248364A |
To reduce energy loss while minimizing idle time by forming a double crucible wall, arranging an induction coil travelable in the vertical direction relative to the crucible wail on the outside thereof and making a delivery sprue closabl...
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JPH11242098A |
To reduce the volume of generated secondary wastes by separating an oxide constituted of a material contaminated especially with radioactivity into a metal phase and an oxide phase. A melting and ingot-making crucible 5 is equipped with ...
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JP2942644B2 |
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JP2938353B2 |
PURPOSE: To enable a fast melting of small pieces to be carried out and to be integral with a melting part by a method wherein a feeding of small pieces is carried out intermittently at an initial stage of a melting step and an electrica...
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JP2938215B2 |
PURPOSE: To execute continuous crucible operation, to improve the productivity and to enable combination with various kinds of processes, such as fining and casting by providing means for continuously or intermittently discharging the su...
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JPH11223472A |
To achieve a longer light, by performing an impregnation treatment of pitch and further applying an oxidation preventing material for carbon impregnated to significantly improve the useful life longevity, and to accomplish safe operation...
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JPH11223471A |
To achieve a longer life, by performing a impregnation treatment of a pitch to significantly improve the useful life longevity and to accomplish safe operation of a furnace with a limited amount of a matter adhered onto the internal wall...
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