Abstract: A carbon fiber reinforced carbon composite, obtained by a method comprising impregnating a pitch or a resin into a molded member formed of carbon fibers for densification thereof; forming an impregnated pyrolytic carbon layer by CVI after densification; and forming a coated pyrolytic carbon layer on the impregnated pyrolytic carbon layer by CVD; a method of making the carbon fiber reinforced carbon composite; and a pulling single crystal member made from the carbon fiber reinforced carbon composite.

Abstract: A keratan sulfate oligosaccharide which comprises from two to five sugar units and has sulfated N-acetylglucosamine at the reducing end and in a molecule of which at least two hydroxyl groups are sulfated, preferably, which contains at least disaccharide represented by the formula Gal(6S)-GlcNAc(6S) (in the formula, Gal, GlcN, Ac, and 6S represent a galactose, a glucosamine, an acetyl group, and a 6-O-sulfate ester, respectively) as a constitutional ingredient, and/or pharmaceutically acceptable salt thereof are used as active ingredients of anti-inflammatory agents, antiallergic agents, immunomodulators, cell differentiation inducers, and apoptosis inducers.

Abstract: A keratan sulfate oligosaccharide which comprises from two to five sugar units and has sulfated N-acetylglucosamine at the reducing end and in a molecule of which at least two hydroxyl groups are sulfated, preferably, which contains at least disaccharide represented by the formula Gal(6S)-GlcNAc(6S) (in the formula, Gal, GlcN, Ac, and 6S represent a galactose, a glucosamine, an acetyl group, and a 6-O-sulfate ester, respectively) as a constitutional ingredient, and/or pharmaceutically acceptable salt thereof are used as active ingredients of anti-inflammatory agents, antiallergic agents, immunomodulators, cell differentiation inducers, and apoptosis inducers.

Abstract: An apparatus for producing hydrogen and oxygen having a pressure vessel surrounding a bipolar-type water electrolytic cell The electrolytic cell contains a plurality of joined solid electrolyte membrane units, and each solid electrolyte membrane unit contains a solid electrolyte membrane, porous conductors in contact with opposing surfaces of the solid electrolyte membrane, and bipolar-type electrode plates in contact with each porous conductor, wherein each electrode plate is capable of performing as an anode and a cathode. A gap is present between the interior of the pressure vessel and the exterior of the water electrolytic cell to form a water pressure regulating chamber, and water of a preselected pressure can be fed into the water pressure regulating chamber such that the pressure differential between the pressure inside the water electrolytic cell and the pressure inside the water pressure regulating chamber is maintained within the pressure differential tolerance range of the water electrolytic cell.

Abstract: A press device which is reduced in overall height thereof and in deformation of a press frame and can sufficiently support an eccentric load thereto. The press device comprises a press force generating unit disposed in a press frame and including a lid member secured to the press frame, a cross head having a cylinder chamber in which the lid member is fitted for axial sliding movement and having a blank holder at an end face thereof remote from the lid member, and a pressurizing member fitted for axial sliding movement in a portion of the cylinder chamber remote from the lid member. A shaping element is disposed in the press frame in an opposing relationship to the press force generating unit and has a shaping portion in which the pressurizing member is fitted.

Abstract: A cooling device for a high pressure vessel which is simple in construction and high in safety and has a high cooling faculty without the necessity of changing a design of the high pressure vessel. The cooling device has a cylindrical cooling medium jacket having a cooling medium passage formed therein. The cooling medium jacket is removably disposed in a high pressure chamber of the high pressure vessel between the high pressure vessel and an insulation mantle surrounding a heater in the high pressure chamber such that a gap may be left between the high pressure vessel and the cooling medium jacket. The cooling medium jacket has a passage hole formed therein for establishing communication between the gap and the high pressure chamber to allow pressure medium to be introduced into the gap.

Abstract: Method and apparatus for removing a jammed billet from a container on a metal extrusion press in which a billet in a container is extruded through a die at the fore end of a die stem by relative movement of the die stem admitted into the container while the billet and container are held stationary relative to each other. Should the billet in the container jam, pressure is applied on the rear end face of the billet in the axial pressing direction thereby extruding the billet in the counter-pressing axial direction.

Abstract: A cold isostatic press of the multiple container type including a press frame and an upper plug movable toward and away from a plurality of shaping containers and adapted to perform an operation of loading or unloading a first shaping material from a container and a pressure-forming operation on a second container concurrently at different positions, characterized in that the cold isostatic press includes a plurality of stationary shaping containers securely mounted on a fixed container frame. The press frame is supported linearly reciprocably or swingably for movement to and from a plurality of containers on the fixed container frame.

Abstract: Double-stem type extrusion method and apparatus used for extrusion-molding rod-like and tubular products. In order to upset a solid or hollow billet (5, 5A) supplied to a container (1), the end of the container (1) which is on the side of a press stem (6) is closed with a blistering-preventing cover (11) which is not moved relatively to the container (1). A pressure is then applied to the billet (5, 5A) from the side of a die (8) to start the yield deformation thereof from the same side thereof. As the yield deformation movement of the billet (5, 5A) progresses, the air existing between the inner surface of the container and billet (5, 5A) is discharged from the portion of the container (1) which is on the side of the cover (11).

Abstract: An ultra-high pressure solid pressing machine of the type having a pair of upper and lower platens mounted in a press frame and movable relatively toward and away from each other, a mold unit interposed between the upper and lower platens and including at least a cylindrical cavity for receiving raw material therein, upper and lower conical surfaces formed around the upper and lower ends of the cylindrical cavity, and upper and lower anvils fitted respectively in the upper and lower conical surfaces through a gasket to compress the raw material in the cylindrical cavity under an ultra-high pressure, characterized in that the pressing machine includes a plurality of mold units stacked one on another between the upper and lower platens through insulators with axes of cylindrical cavities of the respective mold units being in vertical alignment with each other and a current supply control separately connected to the mold units.

Abstract: A hot isostatic press apparatus wherein a material to be processed such as preliminarily shaped metal powder is charged into a high pressure vessel provided with a heater and the material to be processed is pressed by superhigh pressure of fluid or gas sealed into the vessel and heating by a heater. The apparatus includes a main station including a high pressure vessel, a movable cover, a member for moving the material to be processed; one or more auxiliary stations including an inserting station, a preheating station, a removing station, etc.; a sealed tank; and transfer mechanisms for the material to be processed. The apparatus also includes a seal leakage detector.

Abstract: A high pressure apparatus in which a support frame which undergoes axial tension includes a divided body composed of first and second support frames, the first and second support frames being brought into engagement with each other at an outward area in a diametrical direction of upper and lower covers and being freely changed in position between the engaging position and a position separated from each other. Either one or both of the upper and lower covers are provided with a member which extends outwardly in an axial direction so that products may be removed from a cylindrical high pressure container.

Abstract: A pullback type indirect extrusion press capable of extruding a tubular article, the press including first and second movable platens connected to each other by columns, the movable platens being arranged in front of and behind a fixed platen, a mechanism for producing a extruding force provided above and below or the left and right between the fixed platen and the first movable platen, and a container device and a die stem arranged between the fixed platen and the second movable platen. A piercing cylinder mechanism is provided on the axis of the press on the side of the non-extrusion zone, the piercing cylinder mechanism being provided independently of the mechanism for producing the extruding force.

Abstract: A method for manufacturing an integrated wheel for a vehicle, on which a tire is mounted, by a combination of die forging work, press spreading work and rotative ironing work, the method including the steps of integrally molding by die forging work a disc of the wheel and a thick tubular portion whose outer peripheral surface is made approximately parallel to the axial direction of the wheel through the root portion enlarged in the outer peripheral edge of the disc in the diametrically outward direction; performing the work for spreading both axial end edges of the thick tube portion in the diametrically outward direction by means of a press and work for pressing a rotative ironing tool against the axial intermediate portion of the thick tubular portion carried out after or prior to said spreading step; allowing the material to escape in a direction opposite the travelling direction of the rotative ironing tool in the subsequent step during pressing; and thereafter pressing the rotative ironing tool against t

Abstract: An improved multiple roller spinning machine for spinning vehicle one-piece wheels is disclosed in which the roller holder is capable of sliding in a direction parallel with the axis of spinning and has a hydraulic cylinder which moves through its axially movable piston rod the holder horizontally thereby bringing the multiple rollers sequentially in to an operating position just above the wheel material clamped between the dies of the driving and driven spindles. Each of the multiple rollers is coupled to a control hydraulic cylinder which drives through its piston the respective roller vertically between a retracted position and a drawing position where the roller is pressed against the periphery of the wheel material.

Abstract: Described herein is a method for shaping aluminum wheels, which comprises the steps of: (A) supporting opposite rim portions of a cylindrical forging aluminum work substantially of H-shape in section by means of spinning dies, and subjecting the work to primary spinning including press-shaping by a work-stretching first spinning roller and preliminary spinning by a second spinning roller; (B) flaring the inner end of the rim; (C) annealing the work to remove the work-hardening resulting from the flaring operation; and (D) subjecting the work to secondary spinning including final spinning by the second spinning roller and corner R-finishing by a third spinning roller.

Abstract: A hot isostatic pressing system including a hot isostatic pressing station having a high pressure container constituted by a vertical pressure-resistant cylinder closed at the top end thereof and a lower lid detachably fitted to the bottom of the pressure resistant cylinder and a treating chamber internally provided with a heater and enclosed by a heat insulating wall, and a mechanism for adjusting an atmospheric gas pressure and temperature of the pressing station into a condition suitable for the hot isostatic pressing of a work item accommodated in the treating chamber; a plurality of auxiliary stations each provided with an opening for receiving from beneath thereof the heat insulating wall of the treating chamber accommodating the internal heater and a work item, a support structure for supporting the heat insulating wall, and a mechanism for cooling the work item and internal heater in an inert gas atmosphere; a carriage for transferring the lower lid and work item or the lower lid, work item, heat insu

Abstract: A high pressure apparatus including a container internally provided with a cylindrical space capable of being closed, which container is constituted by a unitary member or an integral assembly of a plurality of members joined throughout its full axial length; a cotter member or a pin inserted radially in the container at one or both axial end portions of the container, which cotter member or pin serves as a structure for bearing an axial force induced by a high pressure load; and a plurality of flexible members wound round the outer periphery of the container axially of the latter to thereby exert a precompression on the entirety of the container.

Abstract: A hot isostatic pressing apparatus equipped with at least one hot isostatic pressing vessel having a detachable bottom lid and at least one cooling or preheating cylinder or hot isostatic pressing vessel arranged substantially on a central horizontal extension of the former vessel, which apparatus includes a rail provided in front of the former vessel and cylinder or the latter vessel with an interval between the rail and the former vessel and the cylinder or the latter vessel; and a carrier capable of reciprocally travelling between the former vessel and the cylinder or the latter vessel and including a lift frame, a lift provided with the frame and a bottom lid cradle, the cradle being provided in the form of a cantilever with lift and extending to a point underneath the former vessel when the carrier assumes a position in front of the former vessel and to another point underneath the cylinder or the latter vessel when the carrier assumes a position in front of the cylinder or the latter vessel.

Abstract: A hot isostatic pressing apparatus which includes a pressure vessel, a heater and a heat-insulating layer interposed between the pressure vessel and heater. The heat-insulating layer is formed of at least two layers, i.e., an inner layer and outer layer. The inner layer embraces an object, which is under treatment, and the heater. The inner layer is loadable in and unloadable from the pressure vessel together with the object and heater while maintaining a space, which is embraced by the inner layer, in a state hermetically isolated from the surrounding atmosphere. However, the outer layer is held within the pressure vessel. When the hot isostatic pressing apparatus is incorporated in a modular HIP system, the cooling time is considerably shortened and the efficiency of the HIP treatment is hence improved to a considerable extent.