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JP3121745B2 |
To reduce the generation of flaws in a pipe and to increase its high temp. oxidation resistance by using an Al alloy mixed with elements increasing its m.p. and furthermore increasing its high temp. oxidation resistance as Al-base metal....
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JP2000343193A |
To obtain a casting with fine structure and uniform quality across entire thickness direction by making the casting speed of a thick portion as a specific range and inclining a ladle from data of the molten metal remaining quantity in th...
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JP3115212B2 |
To uniformly form an iron-aluminum alloy layer obtd. by coating the outer circumferential face of a cast iron pipe with aluminum or an aluminum alloy film. At the time of casting a cast iron pipe, the inside face of a mold is coated with...
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JP2000326061A |
To easily form a tube having a step in level by disposing a formed body of the different portion in level on the inner part of a cylindrical metal frame, rotating the cylindrical metal frame after heating, pouring molten iron to execute ...
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JP3109653B2 |
To provide an automatic coating apparatus which originally develops the most suitable function by particularly extracting special necessary conditions for coating the coat on the surface of a core after complining the remarkably automati...
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JP3110735B1 |
[wrap up] [Task] It can be preferably used for sheet piles, rolls for rolling shaped steel such as angles, universal mill rolls for rolling H-shaped steel, etc., and hot rolling with a good balance of seizure resistance, heat crack resis...
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JP3107932B2 |
PURPOSE: To realize a sounder composite high-speed steel sleeve roll of good performance used as a roll for rolling H-shape steel, an edger roll or the like. CONSTITUTION: This roll is formed of the external layer of a high speed steel s...
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JP3109247B2 |
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JP3104467B2 |
PURPOSE: To cope with gravity casting and centrifugal casting in the vacuum by arranging a drawing device in an air-tight vessel at the time of executing a continuous casting operation and carrying out the drawing device to the outside o...
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JP2000297358A |
To provide a mold facing on a metallic mold for centrifugal casting roll and a mold facing applying method with which the development of fine cracking on the roll surface is prevented and thermal spraying mold facing is repeatedly applie...
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JP3102132B2 |
A hearth roller has an outer sleeve which constitutes a hearth roller barrel is disclosed. An inner sleeve is fitted into the outer sleeve and innermost sleeve is fitted into the inner sleeve. The ends of the inner sleeve in the axial di...
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JP3102288B2 |
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JP3103024B2 |
To quickly and easily execute the positional adjustment of a supporting roller for metallic mold, at the time of changing the size of the metallic mold. A fixed ring 8 at the upper part of the metallic mold 2 and a movable ring 9 rotatab...
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JP2000288708A |
To provide a high performance sleeve roll for rolling provided together with wear resistance, surface roughening resistance and toughness. This sleeve roll is produced as the following method, with which after casting molten metal contai...
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JP2000288707A |
To simply form the thickness at a portion formed with cooled molten metal at thicker than the other portion by cooling the molten metal supplied into a mold when a tube is centrifugally cast by supplying the molten metal into the rotated...
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JP3099437B2 |
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JP3094022B2 |
A profiled tube (50b) comprising a high carbon content alloy (greater than 0.3%), superalloy or other high creep strength material, has a fluted bore with internal fins (52b) and intervening valleys or troughs (56b). Such a tube is made ...
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JP3092843B2 |
PURPOSE: To improve a flux which is charged to molten metal to cover and clean the surface of the molten metal in casting molds in centrifugal casting of a two-layered pipe. CONSTITUTION: The flux has a chemical compsn. contg., by weight...
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JP2000239770A |
To provide a material and a method for producing the wear resistant lining of a complex barrel used for injection molding or extrusion. The complex barrel 10 used for extrusion or injection molding has an outside box body 12 provided wit...
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JP2000233268A |
To provide a metallic mold for forming a bolt hole in a centrifugal casting tube with a flange as the hole as cast having good shape, size and positional precision. This metallic mold is provided with a refractory-made plate-like core 20...
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JP2000225451A |
To obtain a crucible, in which the residual molten metal can easily be removed, by arranging a pouring hole at the upper part of the crucible body and opening a part of a cover for preventing flow-out of the molten metal arranged at a mo...
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JP3075302B2 |
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JP3071366B2 |
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JP3070295B2 |
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JP2000198127A |
To provide a centrifugal molding method capable of easily exhausting solvent vapor to be generated in manufacturing, by improving a complicated preparatory operation such as exchange or the like of a molding tool and a jig to be requeste...
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JP2000178675A |
To provide a composite roll provided with an external layer excellent in wear resistance and composed of a uniform material preventing the generation of the unevenness of wear and the unevenness of surface roughness caused by macrosegreg...
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JP3053739B2 |
PURPOSE: To detect the development of slippage between a clamping device and a tube and to suitably deal with this slippage by detecting the distance between a carriage and the clamped tube and providing a means for detecting the distanc...
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JP2000144302A |
To produce a centrifugally cast composite roll composed of an external layer small in the segregation of components or the like, low in a friction coefficient, excellent in crack resistance and wear resistance and having high tensile str...
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JP2000141005A |
To reduce the unevenness of carbide and to prevent an annual ring state segregation of carbide, in the method for producing an outer layer composed of a high speed steel series cast iron material with centrifugal casting. In a method for...
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JP2000141004A |
To reduce the unevenness of carbide on an outer layer and to prevent the development of an annual ring-state segregation of carbide, in a method for producing a complex roll for rolling by forming the outer layer composed of a high speed...
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JP3041080B2 |
PURPOSE: To obtain a precision cast product having high quality and high precision by cutting off high frequency current after induction-melting metal material in a crucible and dropping the molten metal material into a mold from the cru...
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JP3039106B2 |
PURPOSE: To provide a method for manufacturing a heat resistant titanium alloy cast member excellent in cold ductility. CONSTITUTION: A heat resistant titanium alloy cast member excellent in cold ductility is manufactured by melting a ti...
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JP2000117409A |
To facilitate the disassembly of a mold and to execute a centrifugal casting in the vacuum or in a protecting gas without consuming excess energy by enabling shifting of both mold portions together with a rotary guide to a closing positi...
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JP2000117310A |
To ensure the operation in a condition where a hard ring is stably engaged with a roll body by providing a buffer layer to mitigate the stress to be generated between the hard ring and the roll body during the rolling between the hard ri...
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JP2000108182A |
To prolong a lifetime of a barrel by preventing gas leakage and resin leakage from an end face of a front end side of a barrel hole.An axially penetrating cylindrical barrel hole 3 is formed in the barrel 1. A coating layer 7 having corr...
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JP3027626B2 |
PURPOSE: To manufacture a casting having fins at an outer peripheral surface and small diameter and long length by assembling in the condition of juxtaposing plural pieces of round bars in the peripheral direction of a rotation axis and ...
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JP2000094107A |
To uniformly distribute the pouring of molten cast iron over the whole mold from the pouring port to the deep part by predeciding the optimum pouring quantities of the molten cast iron at the starting stage, middle stage and end stage of...
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JP3027624B2 |
PURPOSE: To easily manufacture a metallic mold having complicate shape in a hollow cross section or a metallic mold having a small hollow cross section and long length by assembling members divided in the peripheral direction of a rotati...
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JP3027532B2 |
To fasten the cooling speed so as to fine the structure, and provide a hydrogen storage alloy, in which the generation of segregation is reduced and which can sufficiently stand the repeated charging and discharging, by continuously supp...
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JP2000071053A |
To uniformly pour molten metal from an inlet of a mold to the rear by dividing the pouring into initial period, middle period, and final period, and by pouring a small quantity in the initial pouring stage, pouring the large quantity in ...
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JP2000061529A |
To manufacture a bent pipe of austenite stainless steel excellent in heat resistance and corrosion resistance at a low cost. A straight pipe 28 of an austnite stainless steel is manufactured by a horizontal centrifugal casting machine. T...
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JP3013091B2 |
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JP2000054080A |
To provide a roll for hot rolling superior in wear resistance compared with the conventional roll and free from segregation of carbide. The roll is a roll for hot rolling having an outer layer which is composed of an Fe-base alloy contai...
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JP2000054058A |
To provide a high Ni alloy useful as a transport tube material for crude oil and natural gas well and excellent in pitting corrosion resistance, stress corrosion cracking resistance, etc. This alloy has a chemical composition consisting ...
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JP2000042705A |
To avoid a trouble caused by crack, etc., by casting molten carbon steel with a centrifugal casting to form the outer layer of the carbon steel casting molten wear resistant steel to form the intermediate layer for wear resistant steel u...
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JP3006660B2 |
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JP3006984B2 |
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JP3003766B2 |
PURPOSE: To shorten the casting cycle time by eliminating the need of making a casting machine wait for a fed out cast tube for a long time in a casting apparatus of the tube. CONSTITUTION: The casting machine 10 capable of centrifugally...
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JP2000024008A |
To enable horizontal balance adjusting work for a centrifugal casting machine for dentist to be precisely and simply executed by making the structure so that the horizontal balancing of a rotary arm is enabled by pushing out a pair of ba...
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JP3002392B2 |
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