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JPS603950A |
PURPOSE: To produce easily a titanium slab having good quality at a low cost without requiring a rough forging stage by melting a square casting ingot of titanium which is tapered in the bottom and subjecting the molten titanium to bloom...
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JPS59232663A |
PURPOSE: To obtain a clean steel having satisfactory surface quality by pouring a molten steel from the bottom into a casting mold in a vacuum atmosphere and continuing degassing with steam droplets in an intermediate vessel during the e...
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JPS5952217B2 |
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JPS59223138A |
PURPOSE: To improve the internal characteristic of a steel ingot owing to accelerated cooling of the molten metal charged into an annular metallic mold on a molding board and to prevent cracking on the inside surface thereof by disposing...
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JPS59223139A |
PURPOSE: To permit easy control of a final solidification region and to obtain a defectless casting structure by using a header disposed with many blowing nozzles for the inside surface of a hollow core disposed at the center of a master...
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JPS5951382B2 |
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JPS59215248A |
PURPOSE: To improve the yield of a molten steel and to enable repetitive use of refractories for charging in in the stage of casting the molten steel by a bottom running ingot casting method into a casting mold by blowing inert gas with ...
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JPS59209456A |
PURPOSE: To obtain a defectless steel ingot at an improved yield of a molten steel and decreased V segregation and microporosity by setting a pressurizing device in a riser part after the end of casting and pressurizing the riser by an i...
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JPS59209455A |
PURPOSE: To obtain high perfomance as a heat insulating material for a molten metal by using a hollow granular body having a bulk specific gravity and grain size in a specific range for said material. CONSTITUTION: A heat insulating mate...
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JPS59206142A |
PURPOSE: To decrease considerably porosity and segregation in a large sized steel ingot by closing the rising runner between upper and lower molding boards after charging a molten steel into a casting mold and lifting the casting mold an...
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JPS59193751A |
PURPOSE: To produce easily a single part constituted of plural materials by casting by providing successively and continuously molten metals of plural materials. CONSTITUTION: A required material of the material corresponding to a zone 5...
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JPS59179258A |
PURPOSE: To provide titled powder which can prevent generation of defects in a billet and has an excellent heat insulating characteristic by using CaO, Al2O3, SiO2, fluoride, alkali compd., etc. as essential components, incorporating a s...
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JPS59178153A |
PURPOSE: To decrease the inclusions remaining in the bottom of a steel ingot and to make the quality of the steel ingot uniform and good by using an oxide film preventing material in common use as a heat insulating material for a heat in...
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JPS5935326Y2 |
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JPS5935334Y2 |
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JPS5935331Y2 |
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JPS59143554U |
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JPS59143556U |
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JPS59143555U |
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JPS5939227B2 |
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JPS59163053A |
PURPOSE: To prevent reverse V segregation in a steel ingot and to suppress formation of porosity by detecting the cavity owing to solidification formed in the steel ingot and the inside wall of a casting mold with the value indicated on ...
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JPS59163054A |
PURPOSE: To prevent generation of a carburization phenomenon on and under the surface of a steel ingot by using a covering material and riser brick contg. carbon at a specific rate. CONSTITUTION: A molten steel 2 is charged from the bott...
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JPS5938068B2 |
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JPS5937140B2 |
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JPS5937146B2 |
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JPS59153548A |
PURPOSE: To prevent formation of a gap between the surface of a steel ingot and water cooled copper plates and formation of an internal defect in the steel ingot by sandwiching a set of opposed long side molds inscribed with the water co...
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JPS59153549A |
PURPOSE: To enhance combustion in a vacuum melting furnace and to prevent generation of dust and smoke by regulating the proportion of the oxidizing agent to exothermic agent of an exothermic feeding compound obtd. by mixing an exothermi...
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JPS59147746A |
PURPOSE: To prevent the generation of reverse V segregation and porosity on account of the defective contact between a casting mold for casting a steel ingot for an extra thick plate material and the casting ingot by constituting said mo...
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JPS59124649U |
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JPS59144557A |
PURPOSE: To produce easily, safely and surely a composite metallic cast ingot having high quality by coating preliminarily an oxidation preventive agent which is evaporated by the heat of a molten metal on the surface of a cladding mater...
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JPS5933643B2 |
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JPS59141345A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS59141346A |
PURPOSE: To form a defectless joining boundary between a cladding material and a molten steel by fixing the cladding material on the inside wall of a casting mold and suspending a charging pipe into the mold then adding continuously a sp...
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JPS59141344A |
PURPOSE: To cast simultaneously plural steel ingots having different weights in a bottom running method of one molding board and one charging pipe by interposing base plates having different thickness between a molding board provided wit...
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JPS5927973Y2 |
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JPS5931426B2 |
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JPS5930501B2 |
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JPS59130674A |
PURPOSE: To act effectively covering materials and to obtain defectless casting in a bottom running ingot making method by setting preliminarily powder covering agents and a plate-shaped covering material for a molten metal in a casting ...
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JPS59110150U |
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JPS5922911Y2 |
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JPS5994751U |
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JPS5924899B2 |
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JPS5919572Y2 |
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JPS5981553U |
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JPS5994555A |
PURPOSE: To improve plastic workability, and above all, forgeability, by forming an ingot wherein the specific amt. or above of crystal grains is of a specific grain size or below and specific % or above of the secondary dentrite arm spa...
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JPS5921253B2 |
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JPS5973057U |
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JPS5978753A |
PURPOSE: To enable easy and safe sepn. of a casting ingot from a molding board without interrupting a runner and cutting the runner by casting a set amt. of a molten metal by bottom running then inserting a closing material into a pot-of...
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JPS5919152B2 |
1495097 Marking composition HOOGOVENS IJMUIDEN BV 22 April 1976 [25 April 1975] 16414/76 Heading C4A A marking composition for hot iron or steel articles, which is a dry powder suitable for application as such to a hot surface of an iron...
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JPS5973150A |
PURPOSE: To produce easily and economically a composite steel ingot by forming a slag layer and a metallic bath, by electroslag melting, into the space between an upright core material and an annular water-cooled mold and moving an elect...
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