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JPS6241444U |
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JPS6254549A |
PURPOSE: To prevent the crack of a base material shell and to prevent the generation of the defective inter-layer adhesion of a clad plate by disposing and fixing a flat metallic core material into a vertical casting mold and attaching a...
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JPS6238739A |
PURPOSE: To improve production efficiency, yield, etc. by pulling up a tundish nossle simultaneously upon completion of casting, then removing a partition side plate and executing rapping while moving a casting mold in an opposite direct...
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JPS6225049U |
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JPS6234650A |
PURPOSE: To obtain an ingot or billet having the fine crystal grains of the solidified structure with a simple installation by cooling molten metal flow and adjusting the pouring rate thereof in the stage of pouring the molten metal whic...
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JPS6233002A |
PURPOSE: To reduce a process for producing a thin-walled metallic composite material by hot rolling a composite slab which is so cast as to hold two sheets of core materials therein and coiling the rolled sheet, then separating the same ...
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JPS6233043A |
PURPOSE: To improve the quality of a product and to reduce the cost thereof by superposing two sheets of core materials consisting of metallic sheets in an upright state, installing such core materials in a casting mold, preheating the s...
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JPS6220763U |
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JPS6224839A |
PURPOSE: To produce a billet having no segregation in the central part of a steel ingot by pouring a molten steel into a casting mold and rolling down the steel ingot while a solid-liquid coexistence phase remains therein. CONSTITUTION: ...
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JPS6215837U |
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JPS623713B2 |
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JPS6213242A |
PURPOSE: To obtain a metallic pipe having a groove of high dimensional accuracy over the entire outside peripheral part by using a sand mold which is integrally molded to an annular shape to cast said pipe. CONSTITUTION: The preliminaril...
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JPS629746A |
PURPOSE: To easily form a cast ingot having excellent surface quality without having component fluctuations by lining the inside surface of a metallic mold for ingot making with ceramic paper and filling a molten metal into the metallic ...
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JPS626947U |
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JPS626950U |
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JPS626768A |
PURPOSE: To easily remove a sintered slag layer to be formed on the head of a steel ingot by spraying a mixture composed of ≥2 kinds of compds. of alkaline (earth) metals having low m.p. on the surface of a molten steel in the stage of...
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JPS626736A |
PURPOSE: To make the quality of a steel ingot uniform and to prevent the defect thereof by removing part of the sensible heat and latent heat of solidification retrained by a molten steel and settling and depositing the molten steel in a...
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JPS623248U |
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JPS623867A |
PURPOSE: To improve the surface characteristic of a vertically short steel ingot and to prevent the internal defect thereof by opening two discharge holes for discharging a molten metal to the lower part of an immersion nozzle in a horiz...
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JPS61296949A |
PURPOSE: To form an ingot having fine and uniform structure and to uniformly disperse a machinability-improving element therein by discharging a molten metal contg. the machinability-improving element into a casting chamber, applying an ...
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JPS6161896B2 |
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JPS61296948A |
PURPOSE: To obtain a defectless casting having no foam in the inside by spraying a molten metal in a vacuum and solidifying the pulverous semi-molten metallic powder in a casting mold. CONSTITUTION: A bar 6 for regulating the flow rate o...
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JPS61293631A |
PURPOSE: To prevent the damage of a gate refractory board and to prevent the steel leakage from the base of a gate body by forming the surface contact part of the gate body to a small area limited to the front and pressing the gate body ...
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JPS61293630A |
PURPOSE: To suppress the growth of a solidified shell and to maintain the specified meniscus by using a refractories having poor wettability and high bending strength to constitute the lower part of the gate refractory board on the front...
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JPS61289960A |
PURPOSE: To stably form a defectless unidirectionally solidified steel ingot by preventing the solidification from the side walls of a casting mold in the stage of forming the steel ingot by pouring a molten steel into the casting mold c...
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JPS61289945A |
PURPOSE: To cast a vertically short steel ingot which is free from central segregation, porosity and surface crack by evenly providing recesses at a specific area ratio to the base of a casting mold in the stage of casting said ingot by ...
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JPS61289946A |
PURPOSE: To decrease the generation of inverse V segregation and macro segregation, etc. by providing a riser part in the upper part at a convergent taper end of a hermetic casting mold of which the base is the max. wall surface of a fla...
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JPS61286043A |
PURPOSE: To cast a steel ingot always at the specified thickness and to obtain the good-quality steel ingot which is short in a non-stationary part and has no inclusions by minimizing the initial space of a horizontally moving mold and c...
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JPS61286042A |
PURPOSE: To suppress the deformation of MnS and to obtain a sulfur free-cutting steel having excellent machineability and directivity without adding special elements thereto by forming a molten steel contg. a specific ratio of sulfur int...
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JPS61279354A |
PURPOSE: To form a unidirectionally solidified ingot which is defectless and has high quality by lining the inside of an ingot case on a molding board with heat insulating refractories, passing cooling water to the passage in the molding...
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JPS61276744A |
PURPOSE: To prevent internal segregation and inside surface cracking and to obtain a hollow steel ingot having excellent quality by using a core consisting of a thin-walled metallic cylinder and support provided therein, pouring a molten...
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JPS61276763A |
PURPOSE: To cast a molten steel to a steel ingot which contains less impurities, has no macro segregation in the central part and has good quality by disposing plural stages of electric heating elements via a heat resistant material to t...
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JPS61190339U |
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JPS61190338U |
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JPS61190337U |
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JPS61266153A |
PURPOSE: To produce inexpensively a three-layered clad steel without having base metals with a simple installation by forming the solidified shell of the molten steel in a non-magnetic mold then forming a negative segregation layer to a ...
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JPS61262447A |
PURPOSE: To produce an electrical thick steel plate having excellent magnetic characteristics without requiring blooming, rolling, etc. by casting longitudinally short the melt of a pure iron for a magnetic material in such a manner that...
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JPS6154097B2 |
In manufacture of composite steel ingot, a consumed electrode 11 is inserted into an empty space concentric with the ingot 10, and electroslag remelting is effected under a slag bath 16 and the molten metal solidifies. Current is taken o...
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JPS61185557U |
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JPS61259857A |
PURPOSE: To shut off the molten metal flowing down from a vessel into a pouring pipe from the outdoor air and to prevent the atmospheric air pollution by providing superposedly a porous ring and air permeable cushion ring between the top...
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JPS61255757A |
PURPOSE: To cast an ingot having uniform and fine crystal structure by dropping the liquid drops of a molten metal into a casting mold preheated to an adequate temp. thereby casting the ingot. CONSTITUTION: The casting mold 14 is preheat...
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JPS61253161A |
PURPOSE: To case steel ingots having several kinds of shapes with the same casting mold in the production of the longitudinally short steel ingots each having a specific steel ingot ratio by making variable the width, length and height o...
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JPS61253145A |
PURPOSE: To prevent casting defects and to improve yield by using a core made of ceramic fibers and solidifying unidirectionally a molten steel upward from the bottom part. CONSTITUTION: Refractories 26 such as magnesia are impregnated i...
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JPS61245961A |
PURPOSE: To obtain easily and quickly a billet and ingot consisting of prescribed compsn. with a titled device which melts electrodes by the arc between a pair of the electrodes by constituting the electrodes of ≥2 kinds of different m...
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JPS61245960A |
PURPOSE: To obtain easily and quickly a billet and ingot consisting of prescribed comps. with a titled device which melts electrodes by the arc between a pair of the electrodes by providing a means for supplying an additive for component...
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JPS61238457A |
PURPOSE: To improve yield and to reduce the cost of ingot production by pressurizing a molten steel in a runner part from a pouring pipe part to transfer part thereof into a casting mold right after the end of casting. CONSTITUTION: A pr...
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JPS61235047A |
PURPOSE: To obtain a metallic casting having fine crystal grain structure and high quality by passing a molten metal on an inclined cooling plate which is directly controlled in temp. thereby casting the metal in a half-molten state. CON...
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JPS61167241U |
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JPS61167240U |
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JPS61232054A |
PURPOSE: To make possible the formation of a metallic ingot having no thickened segregation zone with good workability at a high yield by removing the upper part of a molten steel at the point of the time when the molten steel poured int...
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