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JP2003055709A |
To efficiently manufacture steel containing nitrogen in high concentration without contamination of impurities in a short time. In the process wherein steel is melted in a gaseous-nitrogen atmosphere by the use of a pressurized induction...
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JP2003056988A |
To provide a hard to crack crucible for melting metal exhibiting good heating efficiency, excellent durability and low reactivity to a matter being melted. Outer surface of a container 1 made of alumina or silicon nitride is coated with ...
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JP2003042428A |
To improve automatic operation control for an ash melting furnace by accurately and continuously measuring the thickness of a molten metal layer in the body of the melting furnace without causing the very high cost of a consumed article....
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JP3374549B2 |
PURPOSE: To enable a more high degree vacuum state to be realized by a method wherein an induction heating coil of a cold-wall vacuum induction melting furnace and an inter-furnace wiring are formed of a water-cooled copper pipe not cove...
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JP3373062B2 |
PURPOSE: To provide a method containing usage of a simple and inexpensive crucible protected from corrosion by an exhaust organic gas and other generated products generated by glass or combustion. CONSTITUTION: In a process for the incin...
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JP2003021466A |
To detect the liquid level without transferring impurities to an object 20 being treated.The vacuum melting system comprises a vacuum tank 5 set in a treating environment different from the outer environment, a system 6 for melting the o...
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JP3367242B2 |
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JP2003010659A |
To produce a hydrogen-permeable membrane alloy having the characteristics of a hydrogen permeable membrane and to obtain a whole alloy free from defects such as blowholes.A method is provided for producing a hydrogen-permeable alloy from...
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JP2003501611A |
The invention relates to the emptying of melting vessels (1) by tipping. According to the invention, the melting vessel (1) is placed on column-shaped bases (6). During the tipping process, the melting vessel (1) is raised at the side an...
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JP3366359B2 |
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JP2003002673A |
To provide an apparatus capable of obtaining high-quality mass-produced silica glass moldings at low cost in high yield.The apparatus for producing the silica glass moldings comprises a silica glass-fusing furnace body for fusing and sto...
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JP2002372379A |
To solve a problem that a large scale facility is required because an 'opening machine' and a 'mud gun' are conventionally employed for opening/closing the delivery gate of a furnace and the work is troublesome because they are used alte...
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JP2002371347A |
To improve corrosion resistance of a forced cooling type induction- heating crucible made from copper, used for reprocessing of a spent nuclear fuel. The method for preventing corrosion of a forced cooling type induction-heating crucible...
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JP2002346700A |
To provide a method for producing that sound ingot of a metal with a high melting point and high activity, an alloy containing such a metal, or the like of which the shrinkage cavities generated on coagulation are small, which is free fr...
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JP2002539948A |
A method and apparatus are provided for making high purity and preferably oxygen free substantially void free and inclusion free copper castings such as billets from high purity copper. The castings are particularly useful to make sputte...
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JP3351194B2 |
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JP2002333280A |
To provide a ramming material for an induction furnace, suitable as the ramming material when a filling work is executed by using an automatic furnace building machine without bringing about a segregation of a grain size of the ramming m...
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JP2002327219A |
To provide a method for melting metal, which can apply an anti-gravity casting such as semi-levitation melting and reduced-pressure suction casting even to ferrous metals, and also provide a metal melting device therefor.The metal meltin...
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JP2002327989A |
To provide an induction heating water-cooled crucible furnace, in which the furnace construction is improved to melt easily a metal of high electric-conductivity or high thermal-conductivity, such as copper or silver.A carbon-made cylind...
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JP2002538586A |
An installation for processing by induction a metallic material is disclosed. The installation includes a first winding including, in series, at least one first coil of at least one turn and at least one second coil of at least one turn,...
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JP3344523B2 |
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JP2002537119A |
The invention relates to a crucible induction furnace for producing cast parts consisting of aluminum and magnesium alloys, especially particle-reinforced alloys. According to the invention, the material being melted is directly, inducti...
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JP3338145B2 |
PURPOSE: To faciliate manufacturing, repairing and partial replacement, improve a thermal efficiency and reduce a difference in temperatures at an upper part and a lower part of a cylindrical furnace having a crucible by a method wherein...
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JP3337569B2 |
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JP2002303490A |
To obtain a graphite crucible furnace for training scouring utilizing arc of a welder in which molten having a high melting point can be produced by preventing a conductor for supplying a current to the graphite crucible furnace from mel...
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JP3333537B2 |
PURPOSE: To obtain a nozzle assembly in which process control suitable for maintaining a stable skull layer that is hardened to the inside of a nozzle can be used. CONSTITUTION: A nozzle 14 is made of an outer wall 18 that is made of a m...
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JP2002285226A |
To provide a method by which molten metal having low oxygen and low carbon can be refined while restraining vigorous boiling phenomenon without causing impurities, such as non-metallic inclusion, when refining an Fe-Ni base alloy product...
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JP3325105B2 |
PURPOSE:To obtain an immersion tube heating type heat insulating furnace, which reduces the cost of energy to be consumed, by bringing a combustion gas into contact with a combustion cylinder at a portion therein, which is immersed in mo...
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JP2002529354A |
A heat treatment oven (1) defines a plurality of inner chambers or zones for receiving Cathode Ray Tubes stacked in two rows and vertically orientated with front faces of tubes facing one another. The oven includes heating means in the f...
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JP2002248556A |
To provide a melting tank which is used in melting raw material by high frequency induction heating in a magnesium or magnesium alloy casting machine and restrains molten metal from adhering to the tank and has excellent durability.The m...
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JP2002243370A |
To provide a dissolving apparatus capable of performing an efficient heating and agitating of either silicon or silicon base alloy.There is provided a dissolving apparatus 1 for a silicon or the like comprised of a crucible 2 for storing...
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JP2002226292A |
To provide a method for fitting a carbonaceous crucible into a carbonaceous bowl by which life span of the crucible is extended by protecting it from chemical corrosion and mechanical stress in a process wherein a silicon single crystal ...
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JP3310418B2 |
PURPOSE: To obtain safety in a space between a tilting deck and a stationary deck which is largely opened when an induction furnace is tilted without dropping an operator, etc. CONSTITUTION: A tilting deck 3 is fixed to a top of an induc...
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JP3310759B2 |
PURPOSE: To provide a mounting apparatus which is capable of replacing a dipping tube heater without destroying a furnace and which is simplified in its structure, inexpensive, and is facilitated in its mounting. CONSTITUTION: There is p...
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JP3311504B2 |
PURPOSE: To permit automatic discharge surely when molten metal has leaked into a furnace body and prevent the adhesion of the molten metal to hearth bricks even when the molten metal has leaked into the furnace body. CONSTITUTION: A mol...
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JP3312043B2 |
PURPOSE: To provide a lime crucible and manufacturing method therefor for manufacturing a metal or an alloy, such as Ti or an TiAi alloy, wherein an oxygen containing amount is low, without sacrificing excellent heat resistance and corro...
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JP3310760B2 |
PURPOSE: To provide a mounting apparatus which is capable of replacing a dipping tube heater without damaging a furnace and is simplified in its structure, and is inexpensive in the cost, and is further facilitated in its mounting. CONST...
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JP3308101B2 |
PURPOSE: To prevent deposition of carbon on a coil cement and an insulating coating of a water-cooled copper tube and to prevent an insulator damage of a heating coil by forming a main ingredient of castable cement for constituting the c...
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JP3308950B2 |
To reliably detect pinch phenomenon, thus prevent hot metal from being separated and power source trip from occurring when heating the hot metal in the metal mixer using an induction heating apparatus. In an apparatus for controlling gro...
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JP3308489B2 |
To execute casting at the best timing of casting at the time of pouring metal into a mold by melting the metal with high frequency induction heating. The metal 4 in a crucible 2 is melted with the induction heating using the high frequen...
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JP2002206121A |
To solve the problem that, although the inside of a magnesium melting or melting and holding furnace is filled with gaseous mixture prepared by diluting gaseous sulfur hexafluoride (SF6) with air or gaseous carbon dioxide (CO2) in order ...
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JP2002206864A |
To provide an electrostatic suspension furnace in which a danger that an external force is exerted on the window of an electrode change unit during changing the electrode change unit to break and scatter the window is eliminated.An outer...
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JP2002522634A |
Apparatus for use in the secondary refinement of a metal, particularly steel, is disclosed, which includes an elongated vessel (10) of which the length to width ratio is greater than 2, the vessel (10) being provided with at least one ch...
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JP3305530B2 |
PURPOSE: To simplify the apparatus by eliminating a magnetic shielding plate between an upper exciting coil and a lower exciting coil. CONSTITUTION: Power is supplied from a voltage type inverter 50 to a serial resonance circuit having a...
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JP3305359B2 |
PURPOSE: To guarantee high indication reliability by an arrangement wherein a ceramic sheet including a mesh electrode and being lined to a furnace has thermal and electrical conductivities lower than or equal to or higher than those of ...
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JP3304009B2 |
PURPOSE: To provide a vacuum furnace for metal melting operation having a preheating means capable of performing a preheating operation of a trough within inert gas atmosphere while its clean state is being kept. CONSTITUTION: In an incl...
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JP3301757B2 |
A gaseous deposition source for providing a deposition material that emanates from a crucible having mulitple thin film heating elements formed thereon, with each adjacent pair being separated by an insulating layer therebetween. A gaseo...
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JP2002195543A |
To prevent the fall of temperature of molten slag and effectively supply the molten slag to a slag receiving vessel when the molten slag is discharged from a slag outlet port of a vessel to supply the slag to the slag receiving vessel in...
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JP2002195542A |
To suppress the exhaustion of a vessel used under a high temperature corrosive atmosphere in an ash melting furnace.The ash melting furnace comprises a vessel having conductivity for heating and melting ash with which the vessel is charg...
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JP2002195758A |
To solve the problem that conventionally when there is used a melting apparatus of the type where a stock material put in a crucible in a vacuum container is heated and melted with heating means into a molten solution, and then the cruci...
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