Abstract: There is provided a method for manufacturing a turbine component which enables obtaining a single crystal structure more easily and manufacturing a good turbine component. In the seed crystal placing step, the seed crystal is placed on the surface of the base in a manner that a first direction along <001> of the seed crystal has an angle within 15 degrees in absolute value in relation to a laminating direction. In the shaped layer forming step, scanning is performed in a manner that the scan direction has an angle within 20 degrees in absolute value in relation to a second direction being <001> orthogonal to the first direction of the seed crystal.

Abstract: A method for recycling a Ni-based single crystal superalloy part or unidirectionally solidified superalloy part provided with a thermal barrier coating containing at least a ceramic on a surface of a Ni-based single crystal superalloy substrate or Ni-based unidirectionally solidified superalloy substrate, in which the method including the steps of: melting and desulfurizing a Ni-based single crystal superalloy part or Ni-based unidirectionally solidified superalloy part at a temperature of the melting point or more of the Ni-based single crystal superalloy or Ni-based unidirectionally solidified superalloy and less than the melting point of the ceramic; heating a casting mold for a recycled Ni-based single crystal superalloy part or casting mold for a recycled Ni-based unidirectionally solidified superalloy part to a temperature of the melting point or more of the Ni-based single crystal superalloy or Ni-based unidirectionally solidified superalloy; pouring the desulfurized melted Ni-based single crystal supe

Abstract: The fluid pump according to the present invention has water storage means that is formed so as to communicate with a shaft hole in a pump case and stores fluid leaking from a mechanical seal. An electromagnetic clutch establishes or blocks the transmission of power to a drive shaft by switching between supply and non-supply of electricity to an excitation coil. The water storage means has a weep chamber that communicates with the shaft hole between the mechanical seal and a bearing and is opened to an end portion in the axial direction. An attachment member for attaching a core of the electromagnetic clutch to the pump case seals the opening of the weep chamber.

Abstract: A method for recycling a Ni-based single crystal superalloy part or unidirectionally solidified superalloy part provided with a thermal barrier coating containing at least a ceramic on a surface of a Ni-based single crystal superalloy substrate or Ni-based unidirectionally solidified superalloy substrate, in which the method including the steps of: melting and desulfurizing a Ni-based single crystal superalloy part or Ni-based unidirectionally solidified superalloy part at a temperature of the melting point or more of the Ni-based single crystal superalloy or Ni-based unidirectionally solidified superalloy and less than the melting point of the ceramic; heating a casting mold for a recycled Ni-based single crystal superalloy part or casting mold for a recycled Ni-based unidirectionally solidified superalloy part to a temperature of the melting point or more of the Ni-based single crystal superalloy or Ni-based unidirectionally solidified superalloy; pouring the desulfurized melted Ni-based single crystal supe

Abstract: An impeller (100) for a fluid pump according to the present invention comprises a shroud (150) that has a disk shape and is drivingly rotated about a center axis, and a cover (110) comprising a cover main body (120) having a truncated cone shape with an inlet port (123) for a fluid formed at a center and a plurality of blades (130) arranged around a center axis of the cover main body (120). The cover (110) and the shroud (150) are joined to each other with a welding contacting portion (135) and a welding contacted portion (177) welded to each other in a center axis direction, in a state where another end surface of the shroud (150) and a distal end portion (131) of the blades (130) are in parallel with each other.

Abstract: The fluid pump according to the present invention has water storage means that is formed so as to communicate with a shaft hole in a pump case and stores fluid leaking from a mechanical seal. An electromagnetic clutch establishes or blocks the transmission of power to a drive shaft by switching between supply and non-supply of electricity to an excitation coil. The water storage means has a weep chamber that communicates with the shaft hole between the mechanical seal and a bearing and is opened to an end portion in the axial direction. An attachment member for attaching a core of the electromagnetic clutch to the pump case seals the opening of the weep chamber.

Abstract: In the brake device (1) according to the present invention, a brake shaft (20) that configures a pad pressing device (10) for pressing brake pads (4, 5) against rotor surfaces (2L, 2R) is supported on an inner surface of a brake housing (6) by a cylindrical shaft support member (25) and is turned in a brake actuation direction and a brake release direction along a surface of the shaft support member (25). The shaft support member (25) is provided in such a manner that a portion of the surface thereof is inserted into a support concavity (19) that is formed on the inner surface of the brake housing (6). The coefficient of friction of the surface of the support concavity (19) is greater than the coefficient of friction of the surface of the shaft support member (25).

Abstract: A circuit breaker can minimize a change in a structure of a case when a material forming a stud is changed. A stud includes a base portion provided in the case and a protruding portion protruding from the case. A cross-sectional area of the protruding portion is more than that of the base portion; thereby a thermal conductivity of the protruding portion increases and the thermal conductivity from the protruding portion to an external conductor connected to the stud increases. In addition, since a surface area of the protruding portion increases, an amount of heat dissipated from the protruding portion increases. In the invention, since dimensions of the base portion inserted into a stud insertion hole of the case are not changed, it is not necessary to change the dimensions of the insertion hole of the case.

Abstract: Disclosed is a novel heat-resistant superalloy for turbine disks having a chemical composition consisting of, in mass %, 19.5-55% of cobalt, 2-25% of chromium, 0.2-7% of aluminum, 3-15% of titanium and the balance of nickel and inevitable impurities.

Abstract: A method of manufacturing a glass blank for a magnetic recording medium glass substrate in which, after a pair of press molds placed so as to be opposed to each other in a horizontal direction with press-molding surfaces thereof and the temperatures of the press-molding surfaces being substantially the same are brought into contact with a molten glass gob substantially at the same time, press molding is carried out to produce plate glass and the plate glass continues to be pressed with the pair of molds, and then, when the plate glass is taken out, the duration time of pressing the plate glass is controlled so that the flatness of the glass blank is 10 ?m or less, and a method of manufacturing a magnetic recording medium glass substrate, a method of manufacturing a magnetic recording medium, and an apparatus for manufacturing a glass blank for a magnetic recording medium glass substrate using the same.

Abstract: Provided is a circuit breaker capable of minimizing a change in the structure of, for example, a case even when a material (thermal conductivity) forming a stud is changed. A stud (20) includes a base portion (21) that is provided in a case (2) and a protruding portion (22) that protrudes from the case (2). The cross-sectional area of the protruding portion (22) is more than that of the base portion (21). When the cross-sectional area of the protruding portion (22) is more than that of the base portion (21) in the stud (20), the thermal conductivity of the protruding portion (22) increases and it is possible to increase the thermal conductivity from the protruding portion (22) to an external conductor connected to the stud. In addition, since the surface area of the protruding portion (22) increases, the amount of heat dissipated from the protruding portion (22) increases.

Abstract: Provided are a method of manufacturing a glass blank, the method including press-molding a molten glass gob under a state in which a separation mark formed on an upper surface of the molten glass gob faces at least one of the molding surface sides of a pair of press molds arranged facing each other in a horizontal direction, when the molten glass gob falls into a space between the pair of press molds, and a method of manufacturing a magnetic recording medium substrate and a method of manufacturing a magnetic recording medium, both using the glass blank.

Abstract: Provided is a method of manufacturing a glass blank for a magnetic recording medium glass substrate, including: manufacturing a glass blank by at least press molding a falling molten glass gob with a pair of press molds both so as to face each other in a direction perpendicular to a direction in which the molten glass gob falls, in which: the molten glass gob is formed of a glass material having a glass transition temperature of 600° C. or more; and when the press molding is carried out so that the molten glass gob is completely extended by pressure and molded into a flat glass between press-molding surfaces of the pair of press molds, at least a region in contact with the flat glass in each of the press-molding surfaces of the pair of press molds forms a substantially flat surface.

Abstract: Disclosed is a novel heat-resistant superalloy for turbine disks having a chemical composition consisting of, in mass %, 19.5-55% of cobalt, 2-25% of chromium, 0.2-7% of aluminum, 3-15% of titanium and the balance of nickel and inevitable impurities.

Abstract: Disclosed is a novel heat-resistant superalloy for turbine disks having a chemical composition consisting of, in mass %, 19.5-55% of cobalt, 2-25% of chromium, 0.2-7% of aluminum, 3-15% of titanium and the balance of nickel and inevitable impurities.

Abstract: An external operation handle device for a circuit breaker includes a rotary handle equipped with a handle lock lever, a drive mechanism linking the rotary handle and the locker handle of the circuit breaker, and a door lock lever for interlocking between the rotary handle and a door of the board. By operating the rotary handle, the circuit breaker can be turned to an ON or OFF position, and the door is unlocked at an OPEN position. The handle lock lever is slidably disposed on the rotary handle to be anchored and held at a pulled out position in a condition where the rotary handle at the OPEN position unlocks the door of the board, and the door lock lever linked to the rotary handle is cramped and held at the unlock position in a condition where the rotary handle is at the OPEN position.

Abstract: An external operation handle device is used for a circuit breaker for switching a locker handle to ON and OFF positions. The handle device includes a main body casing for the circuit breaker, a mount base held on the main body casing, a rotary handle grip mounted on the mount base for turning the locker handle to the ON and OFF positions and having a connecting shaft, and an assist mechanism for moving the handle grip to a TRIP indication position upon tripping operation of the circuit breaker. The assist mechanism is interposed between the mount base and the handle grip, and includes a cam with a cam face, fixed on the mount base, a cam follower linking with the handle grip slidably along an axial direction and opposing the cam face of the cam, and an urging spring for pushing the cam follower against the cam face.

Abstract: An external operation handle device for a circuit breaker includes a rotary handle equipped with a handle lock lever, a drive mechanism linking the rotary handle and the locker handle of the circuit breaker, and a door lock lever for interlocking between the rotary handle and a door of the board. By operating the rotary handle, the circuit breaker can be turned to an ON or OFF position, and the door is unlocked at an OPEN position. The handle lock lever is slidably disposed on the rotary handle to be anchored and held at a pulled out position in a condition where the rotary handle at the OPEN position unlocks the door of the board, and the door lock lever linked to the rotary handle is cramped and held at the unlock position in a condition where the rotary handle is at the OPEN position.

Abstract: An external operation handle device is used for a circuit breaker for switching a locker handle to ON and OFF positions. The handle device includes a main body casing for the circuit breaker, a mount base held on the main body casing, a rotary handle grip mounted on the mount base for turning the locker handle to the ON and OFF positions and having a connecting shaft, and an assist mechanism for moving the handle grip to a TRIP indication position upon tripping operation of the circuit breaker. The assist mechanism is interposed between the mount base and the handle grip, and includes a cam with a cam face, fixed on the mount base, a cam follower linking with the handle grip slidably along an axial direction and opposing the cam face of the cam, and an urging spring for pushing the cam follower against the cam face.

Abstract: A novel program for supporting design of a ?? precipitation strengthened platinum group element-added Ni-based superalloy.