Abstract: This cooling device includes a first cooling mechanism and a second cooling mechanism. The first cooling mechanism includes a first nozzle disposed to be aligned with a heating coil on a downstream side and whose injection direction of a refrigerant is a first injection direction, a second nozzle disposed to be aligned with the first nozzle on a downstream side and whose injection direction of the refrigerant is a second injection direction intersecting the first injection direction, a first valve selectively switching a supply destination of the refrigerant between one and the other of the first nozzle and the second nozzle, and a first control unit controlling the first valve.

Abstract: A heat treatment apparatus of one aspect of the present disclosure includes: a feed device that feeds a heat treatment workpiece downstream in a feed direction along a heat treatment workpiece pass-line; a heating device that includes a heating coil disposed downstream of the feed device in the feed direction and encircling the pass-line; a cooling device that is disposed adjacent to the heating coil, downstream of the heating coil in the feed direction, and encircling the pass-line; and a gas supply device that is disposed upstream of the heating coil in the feed direction, directly connected to the heating coil and encircling the pass-line, and that includes a plurality of gas compartments configured by internally partitioning the gas supply device in the feed direction.

Abstract: A steel product bent by heating to 600° C. or more, specifically a heat treated steel product having high strength and excellent chemical conversion coating ability which has scale with FeO content of 90% or more, having a thickness of 1 ?m or less on the surface.

Abstract: A heat treatment apparatus of one aspect of the present disclosure includes: a feed device that feeds a heat treatment workpiece downstream in a feed direction along a heat treatment workpiece pass-line; a heating device that includes a heating coil disposed downstream of the feed device in the feed direction and encircling the pass-line; a cooling device that is disposed adjacent to the heating coil, downstream of the heating coil in the feed direction, and encircling the pass-line; and a gas supply device that is disposed upstream of the heating coil in the feed direction, directly connected to the heating coil and encircling the pass-line, and that includes a plurality of gas compartments configured by internally partitioning the gas supply device in the feed direction.

Abstract: Not only a reduction in the load resistant performance of a structural member in a vehicle body having a quenched portion with a tensile strength of 1,470 MPa or greater, but also a reduction in the shock absorbing performance associated with the HAZ softening by welding are suppressed.

Abstract: A steel product bent by heating to 600° C. or more, specifically a heat treated steel product having high strength and excellent chemical conversion coating ability which has scale with FeO content of 90% or more, having a thickness of 1 ?m or less on the surface.

Abstract: Not only a reduction in the load resistant performance of a structural member in a vehicle body having a quenched portion with a tensile strength of 1,470 MPa or greater, but also a reduction in the shock absorbing performance associated with the HAZ softening by welding are suppressed.

Abstract: A deformed part in a case in which the application of a collision load causes bending deformation in a structural member for an automobile body having a hardness distribution (strength distribution) composed of a quenched part, a base metal hardness part, and a transition part in a longitudinal direction is used as the base metal hardness part to avoid plastic strain concentration in the quenched part. This structural member for an automobile body has a hollow steel main body having a rectangular cross section. The main body includes a quenched part, a base metal hardness part, and a transition part in this order, in at least a part thereof in an axial direction. The length (L) of the transition part as related to the axial direction satisfies the relationship of 0.006 (mm?1)<LA/I?0.2 (mm?1) in a case in which the cross-sectional area of the main body is (A) and the moment of inertia of area is (I).

Abstract: Disclosed is a method for producing perchlorate, which comprises: an electrolytic step (S1) wherein an electrolysis vessel (2), in which a positive electrode side (4A) on which a positive electrode (4) is arranged and a negative electrode side (5A) on which a negative electrode (5) is arranged are divided by a cation-exchange membrane (6), is used and an aqueous solution of sodium chlorate is electrolytically oxidized on the positive electrode side (4A) of the electrolysis vessel (2); a neutralization reaction step (S2) wherein a substance an aqueous solution of which shows alkalinity is added to the aqueous perchloric acid solution that has been produced by the electrolytic oxidation on the positive electrode side, so that perchlorate is synthesized by a neutralization reaction; and a crystallization process wherein the perchlorate synthesized by the neutralization reaction is obtained as crystals.

Abstract: A method for manufacturing ozone ice that is improved for its storage stability is provided. In the method, ice 11 including oxygen gas g2 as gas bubbles b is produced and the produced ice 11 is irradiated with ultraviolet radiation, then the oxygen gas g2 in the ice 11 is ozonized to manufacture ozone ice 1.

Abstract: A method for manufacturing ozone ice that is improved for its storage stability is provided. In the method, ice 11 including oxygen gas g2 as gas bubbles b is produced and the produced ice 11 is irradiated with ultraviolet radiation, then the oxygen gas g2 in the ice 11 is ozonized to manufacture ozone ice 1.

Abstract: The invention relates to a method of manufacturing a perchlorate including an electrolysis process (S1) in which, using an electrolysis tank (2) in which an anode section (4A) provided with an anode (4) and a cathode section (5A) provided a cathode (5) are divided by a cation exchange membrane (6), an aqueous solution of sodium chlorate is electrolytically oxidized in the anode section, a neutralization reaction process (S2) in which a substance that becomes alkaline when dissolved in water is added to the aqueous solution of perchloric acid in the anode section, which has been generated by the electrolytic oxidation, so as to synthesize a perchlorate by a neutralization reaction, and a crystallization method in which the perchlorate synthesized by the neutralization reaction process is formed into crystals, in which the crystallization method includes a crystallization method composed of three processes of an evaporation and crystallization process (S3) or an evaporation and concentration process (S21), a co

Abstract: A method for manufacturing ozone ice that is improved for its storage stability is provided. In the method, ice 11 including oxygen gas g2 as gas bubbles b is produced and the produced ice 11 is irradiated with ultraviolet radiation, then the oxygen gas g2 in the ice 11 is ozonized to manufacture ozone ice 1.

Abstract: A first stage rotor disk (50a) and a connecting member (30) on the compressor side are fixed by a spindle bolt (20). The spindle bolt (20) is covered with a tubular member (100), between the first stage rotor disk (50a) and the connecting member (30) on the compressor side.

Abstract: A refrigerant supplied from a refrigerant supply pipe flows into a first space, being a passage of the refrigerant, from a space between first stage and second stage rotor disks. The refrigerant supplied to the first space is guided to second, third and forth spaces through a gap between a spindle bolt and a bolt hole, during which the rotor disks are warmed up or cooled. In the second stage rotor disk, a refrigerant through hole axially penetrating this rotor disk is provided near the center thereof. The refrigerant flowing into the first space passes through the refrigerant through hole to flow into the second space, to thereby promote the convection in the first, second, third and fourth spaces and equalization of temperatures in the rotor disks.

Abstract: A first stage rotor disk (50a) and a connecting member (30) on the compressor side are fixed by a spindle bolt (20). The spindle bolt (20) is covered with a tubular member (100), between the first stage rotor disk (50a) and the connecting member (30) on the compressor side.

Abstract: A combined cycle gas turbine system is improved to enhance a gas turbine efficiency and a combined efficiency by effecting steam-cooling of a combustor transition piece and a turbine blade. The combined cycle system has a gas turbine (8) having a generator (1), a compressor (2), a combustor (3), a blade cooling air cooler (4) and a turbine (6), a steam turbine (29) having a high pressure turbine (21), an intermediate pressure turbine (22) and a low pressure turbine (23), and a waste heat recovery boiler (9). Saturated water of a high pressure pump (27) is partially led into a demineralizer (118) and a water sprayer (116) for cooling steam to be supplied into a moving blade (52). The steam, after being used for cooling, is recovered into a reheater (20). Outlet steam of the high pressure turbine (21) is led into a stationary blade (53) for cooling thereof and the steam is then recovered into an inlet of the intermediate pressure turbine (22).

Abstract: The blade has such a shape that the diameters of circles inscribing the belly and back sides at different positions of adjacent blades decreases as one goes from the front edge to the rear edge. Since the blade has such a shape, even if the influent angle and effluent angle of gases are increased, a deceleration passage is not formed in the passage between the adjacent moving blades.

Abstract: The pressure ratio &Dgr;P4S of a final stage moving blade is reduced. As a result, the Mach number in the final stage moving blade can be suppressed, and in the gas turbine operating at a pressure ratio of 20 or more, therefore, decline of turbine efficiency due to shock wave loss can be prevented securely.

Abstract: A tube seal is fitted with a spherical spring, being an elastic member, at one end of a tubular barrel. The end where the spring is fitted to the tubular barrel is inserted into a steam supply pipe outlet, which is a coolant passage provided in a rotor disk. The other end of the barrel is formed into a spherical shape, and this end is inserted into a steam supply port in a dynamic blade, being another coolant passage port, and abuts against the internal surface of the steam supply port.