Abstract: The present invention provides parts of a rotation machine which effectively prevent particulates, such as silica, iron oxide, and other particles, contained in a gas to adhere to the rotating machines which work with the gases containing the particulates. An intermediated metal-plated film and a plated film containing fluorocarbon polymer particles provided on the intermediate metal-plated film are deposited on the surfaces of moving blades used in a steam turbine. The plated film containing the fluorocarbon polymer particles includes fluorocarbon polymer particles made of any of Ni-based metals and a plated matrix, and some of the fluorocarbon polymer particles are exposed at the surfaces of the plated matrix.

Abstract: A method for manufacturing an impeller of a centrifugal rotating machine that is approximately disk-shaped and in which flow passages are formed between a plurality of blades and disposed in a radial manner from the inner circumferential side to the outer circumferential side, provided with: a first flow passage formation step that forms a first region on the outer circumferential side within the flow passage by inserting an electrode of a shape fitting to the flow passage with the electric discharge machining method from the outer circumferential side of the disk-shaped body having an outer shape of an impeller; and a second flow passage formation step that forms a second region on the inner circumferential side within the flow passage from the inner circumferential side of the disk-shaped body.

Abstract: Disclosed is a bearing including: a base consisting of a Cu alloy; an uneven portion formed on the base; a plating layer consisting of a ferromagnetic metal or its alloy and formed on the base so as to cover the uneven portion; and a Sn alloy layer formed on the plating layer. The surface of the Sn alloy layer constitutes a sliding surface against an object that the bearing supports.

Abstract: A method of manufacturing an impeller of a centrifugal rotary machine, the impeller being formed in a substantially disk shape and including a passageway curved to follow the axial direction in an inner peripheral side of the impeller and to follow the radial direction as it goes to an outer peripheral side thereof, the method includes: a first passageway forming step of setting a rotation center at a position on one side of the axial direction where a curvature center of the passageway is located relative to a disk forming an external shape of the impeller, and rotating a processing tool about the rotation center relative to the disk so as to form at least a part of the passageway from a position which is an inner peripheral end of the passageway of the disk toward the outer peripheral side.

Abstract: Provided is a surface coating film having a high degree of hardness and an excellent oxidation-resistance, and a method of manufacturing thereof, a cutting tool and a cutting machine. In the surface coating film, an oxidation-resistance layer containing, as a main component, a complex oxide of Li and at least Al, is coated on the outer surface of a base material, direct thereonto or through the intermediary of a highly hard coating layer.

Abstract: In a part for a rotary machine, a ceramic hard film is formed on a surface of a base material, the density of droplets which exist in a surface of the ceramic hard film is set to be within 1000 pieces/mm2, and the density of droplets whose mean particle diameter is 1 ?m or less is set to be within 550 pieces/mm2. A method for manufacturing the part of a rotary machine is a method for forming the ceramic hard film by at least an ion plating method or a sputtering method.

Abstract: An object is to provide a method for forming a superior corrosion-resistant plating layer by sealing penetrating pinholes formed in an electroless plating layer. There are provided a first plating step of performing electroless Ni—P plating on a base material (1); an etching step of etching a surface of a first plating layer (3) formed by the first plating step; and a second plating step of performing electroless Ni—P plating to form a second plating layer (5) on the first plating layer (3) processed by the etching step.

Abstract: An object is to provide a gas-compressor impeller which has excellent durability even when gas containing solid particles is compressed and which does not increase the cost. A gas-compressor impeller installed in a gas compressor that compresses gas containing solid particles has a hub portion and a plurality of blades extending substantially radially from the outer circumferential surface of the hub portion. The hub portion and the blades are rotated about the central axial line to compress gas. The blades have abrasion-resistant films only at gas inlet portions.

Abstract: A solid particle erosion resistant surface treated coat is provided by which a solid, particle erosion resistance is largely enhanced and a rotating member is given with an oxidation resistance without deteriorating a fatigue strength. Also, a rotating machine, such as a steam turbine, axial compressor or the like, applied with this coat is provided. The solid particle erosion resistant surface treated coat comprises a nitrided hard layer formed on a surface of base material and a PVD (physical vapor deposition) hard layer of at least one layer formed on the nitrided hard layer by a PVD method. The nitrided hard layer has a thickness of at least 30 ?m. The PVD hard layer has a total thickness of at least 10 ?m. Deformation of the base material by collisions by solid particles is prevented and crack of the coat comprising the nitrided hard layer formed on the base material and the PVD hard layer formed on the nitrided hard layer is prevented.

Abstract: A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even 1000° C. or higher and also having very high wear resistance.

Abstract: A coating layer is provided on a surface of the moving blades of a rotary machine. The coating layer includes a spray layer on the base material of the moving blades and a fluorocarbon resin layer on the spray layer. The spray layer is porous. The fluorocarbon resin layer is made of fluorocarbon resin. The fluorocarbon resin layer also contains an inorganic substance that is exposed on the surface of the fluorocarbon resin layer.

Abstract: A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even 1000° C. or higher and also having very high wear resistance.

Abstract: A high wear resistant hard film is characterized by including a coating layer consisting of a metal nitride, which is formed on the outside surface of an object to be treated; a substrate layer consisting of a nitride of Ti or Cr, which is provided between the coating layer and the object to be treated; and an intermediate layer containing compositions of the coating layer in contact with the intermediate layer and the substrate layer, which is provided at an interface between the coating layer and the substrate layer, and a tool is provided with the film. There is provided a hard film having excellent oxidation resistance even at 1000° C. or higher and also having very high wear resistance.

Abstract: The present invention provides a surface-coated article possessing a high hardness coating that has a Vickers hardness that is equal to or greater than that of conventional high hardness coatings, and which has an oxidation initiation temperature, which is an expression of resistance to oxidation, that is higher than that of conventional high hardness coatings. A coating layer containing a compound nitride that employs as main components Al and at least one element selected from the group consisting of Zr, Hf, Pd, Ir and the rare earth elements is formed on or over a base material.

Abstract: The present invention provides parts of a rotation machine, which effectively prevent particulates, such as silica, iron oxide, and other particles, contained in a gas to adhere, in the rotating machines, which treat with the gases containing the particulates. An intermediated metal-plated film 11 and the plated film 12 containing the fluorocarbon polymer particles provided on the intermediate metal-plated film 11 are deposited on the surfaces of moving blades 23 used in a steam turbine. The plated film 12 containing the fluorocarbon polymer particles includes fluorocarbon polymer particles 13P made of any of Ni-based metals and a plated matrix 13M, and some of the fluorocarbon polymer particles 13P are exposed from the surfaces of the plated matrix 13M.

Abstract: A coating layer is provided on a surface of the moving blades of a rotary machine. The coating layer includes a spray layer that rests on the base material of the moving blades, and a fluorocarbon resin layer that rests on the spray layer. The spray layer is porous. The fluorocarbon resin layer is made of fluorocarbon resin. The fluorocarbon resin contains an inorganic substance that is exposed on the surface of the fluorocarbon resin.

Abstract: An aluminum powder is mixed with a neutron absorber powder through cold isostatic press to form a preliminary molding. The preliminary molding is then subjected to sintering under no pressure in vacuum. After sintering, a billet is subjected to induction heating and hot extrusion to form a square pipe.

Abstract: A printing press, and an apparatus and a process for regenerating a printing plate can repetitiously reuse the same printing plate and shorten time for decomposition of image areas formed by a hydrophobic organic compound under irradiation with activating light to delete the image areas. A process for regenerating a printing plate including a photosensitive layer, formed on the surface of a substrate, having a photocatalyst exhibits hydrophilicity responsive to activating light having energy higher than the photocatalyst's band-gap energy, and one or more hydrophobic image areas, formed on the surface of the photosensitive layer and operable to hold ink, comprises the steps of: removing ink remaining on the printing plate; hydrophilizing the surface of the printing plate by irradiating with the activating light and by heating the printing plate to delete the hydrophobic image areas; and applying an organic compound onto the printing plate.

Abstract: The present invention relates to a method of regenerating a printing plate, a regenerating apparatus, and a printing press which make it possible to regenerate a printing plate for repetitive use and shorten the time of plate regeneration. In particular, the present invention intends to make it possible to shorten a time for decomposing and removing an image area formed with an organic compound under irradiation of an activating light. Furthermore, the present invention relates to a printing plate, a method of fabricating the printing plate, a layered formation, and a method of fabricating the layered formation. The present invention is arranged to include a photosensitive layer containing a photocatalyst and when the photosensitive layer is applied on the surface thereof with an activating light having an energy level higher than the band gap energy of the photocatalyst under a heating atmosphere, the surface of the photosensitive layer can be swiftly hydrophilized.

Abstract: An aluminum powder is mixed with a neutron absorber powder through cold isostatic press to form a preliminary molding. The preliminary molding is then subjected to sintering under no pressure in vacuum. After sintering, a billet is subjected to induction heating and hot extrusion to form a square pipe.