Abstract: A repair method for a gas turbine blade comprises: a step of removing a thermal barrier coating to expose at least part of a base material of the gas turbine blade; a first etching step of etching the exposed base material; a first identification step of identifying a base material deterioration layer that is harder than the base material from the etched base material; a first removal step of removing the identified base material deterioration layer if the base material deterioration layer is identified in the first identification step; and a step of applying a thermal barrier coating to the exposed base material after it is determined that there is no base material deterioration layer in the first identification step, or after the base material deterioration layer is removed in the first removal step.

Abstract: From such a state that the steady running of a kneading extruder is temporarily stopped in the heating state where it is supplied with resin material, the operation of a cutter device (5) is stopped, the heating quantity of a die (2) is reduced, and an external surface (2a) of the die is covered with cooling water, the heating quantity of the die (2) is increased so that softened resin material filling the inside of the nozzles (7) is melted, and the cutter device (5) as well as the kneading extruder are started to be driven at the same time.

Abstract: A first granulating unit A for molding molten resin of one color into pellets and a second granulating unit B for molding molten resin of the other color into pellets are provided in one screw type kneading extruder 1. The first granulating unit A is made to communicate with a discharge port 2a while the second granulating unit B is blocked. After the pellets of one color are molded in this state, the discharge port 2a is made open to the outside of the apparatus, and a thermoplastic resin material of the other color is kneaded and melted by means of the screw type kneading extruder 1, and discharged to the outside of the apparatus to thereby perform cleaning operation. Next, the second granulating unit B is made to communicate with the discharge port 2a while the first granulating unit A is blocked. In this state, the pellets of the other color are molded.

Abstract: A first granulating unit A for molding molten resin of one color into pellets and a second granulating unit B for molding molten resin of the other color into pellets are provided in one screw type kneading extruder 1. The first granulating unit A is made to communicate with a discharge port 2a while the second granulating unit B is blocked. After the pellets of one color are molded in this state, the discharge port 2a is made open to the outside of the apparatus, and a thermoplastic resin material of the other color is kneaded and melted by means of the screw type kneading extruder 1, and discharged to the outside of the apparatus to thereby perform cleaning operation. Next, the second granulating unit B is made to communicate with the discharge port 2a while the first granulating unit A is blocked. In this state, the pellets of the other color are molded.

Abstract: An underwater granulating method in which thermoplastic resin material is kneaded and melted by a kneading extruder while the melted resin material is extruded into cooling water from nozzles of a die with its external surface covered with the cooling water, and the resin material extruded in thin strings is cut by a cutter device driven to move along the external surface of the die.

Abstract: An apparatus for forming I-III-VI.sub.2 thin-film layers has a reaction chamber made of a carbon material in which a precursor for forming a I-III-VI.sub.2 thin-film layer and a vapor source of an element of group VI of the periodic table are placed. The precursor and vapor source are heated under vacuum to form the I-III-VI.sub.2 thin-film layer. The reaction chamber is divided into a reaction compartment A having the precursor placed therein and a reaction compartment B having the vapor element of group IV placed therein. A communication channel C is provided between the reaction compartments A and B, and a heating unit controlled by a temperature control unit is provided exterior to each of the reaction compartments A and B.

Abstract: An improved process for producing a light-absorbing chalcopyrite film is disclosed, which comprises the steps of: applying at least one solution containing at least either of (a) an organic compound of a metal in Group 1B of the periodic table and (b) an organic compound of a metal in Group 3B of the periodic table on a substrate at least once to thereby form a thin film containing the organic compound (a) and the organic compound (b); heating the thin film in a reducing or inert gas atmosphere to convert the thin film into a thin metal film comprising the Group 1B metal and the Group 3B metal; and heating the thin metal film in an atmosphere containing either an element in Group 6B of the periodic table or a compound thereof to thereby convert the thin metal film into a thin chalcopyrite film.

Abstract: In the underwater cut pellet transport apparatus in which pellets cut formed by an underwater cutting device 4 are delivered to a cooling water dehydrating device 10 and a drying device 11 by means of the head pressure of a cooling water circulating pump 6 and are dehydrated and dried there, and the thus dried pellets are then delivered to pellet silos 15 by means of the head pressure of an air feed blower 17 of a pneumatic feed facility, the above-mentioned cooling water dehydrating device 10 and drying device 11 are respectively disposed above the pellet silos 15, thereby eliminating the need for provision of the above-mentioned pneumatic feed facility.

Abstract: A granulating device, and a granulating method for thermoplastic resin material, in which a screw type kneading and extruding machine for kneading, extruding and melting the thermoplastic resin material, a die holder connected to a front end portion of the screw type kneading and extruding machine, the die holder including a passage through which the melted resin material folws, a change-over valve and at least two outlets, the passage selectively connected to the outlets with the change-over valve, a first and a second dies, for forming the melted resin material into a plurality of pieces of string, connected respectively to the outlets to adapt to different ranges of viscosity of the melted resin material, and a first and a second cutter units including cutters moved respectively along extruding planes of the first and second dies to cut the string-shaped resin material into small pieces, and cooling and solidifying sections for cooling and solidifying the small pieces of thermoplastic resin material.

Abstract: A granulating device, and a granulating method for thermoplastic resin material, in which a screw type kneading and extruding machine for kneading, extruding and melting the thermoplastic resin material, a die holder connected to a front end portion of the screw type kneading and extruding machine, the die holder including a passage through which the melted resin material flows, a change-over valve and at least two outlets, the passage selectively connected to the outlets with the change-over valve, a first and a second dies, for forming the melted resin material into a plurality of pieces of string, connected respectively to the outlets to adapt to different ranges of viscosity of the melted resin material, and a first and a second cutter units including cutters moved respectively along extruding planes of the first and second dies to cut the string-shaped resin material into small pieces, and cooling and solidifying sections for cooling and solidifying the small pieces of thermoplastic resin material.

Abstract: A granulating device, and a granulating method for thermoplastic resin material, in which a screw type kneading and extruding machine for kneading, extruding and melting the thermoplastic resin material, a die holder connected to a front end portion of the screw type kneading and extruding machine, the die holder including a passage through which the melted resin material flows, a change-over valve and at least two outlets, the passage selectively connected to the outlets with the change-over valve, a first and a second dies, for forming the melted resin material into a plurality of pieces of string, connected respectively to the outlets to adapt to different ranges of viscosity of the melted resin material, and a first and a second cutter units including cutters moved respectively along extruding planes of the first and second dies to cut the string-shaped resin material into small pieces, and cooling and solidifying sections for cooling and solidifying the small pieces of thermoplastic resin material.

Abstract: A cylinder temperature controlling device includes at least one of a plurality of block cylinders split into an upper block and a lower block, said block cylinders arranged in horizontal axis to form a cylinder, heater units, for heating said upper block and said lower block, provided with said upper block and said lower block, respectively, cooling units for cooling said upper block and said lower block, provided with said upper block and said lower block, respectively, and temperature detecting units for detecting a tempature of said upper block and a tempature of said lower block, provided with said upper block and said lower block, respectively.

Abstract: A solar heat collector, in which an absorber plate is located in a box member provided at one surface thereof with a transparent sheet, being of such an arrangement that the absorber plate has been subjected at the surface thereof to a selective absorption surface treatment and a transparent heat trap formed of a fluoroplastics film and having a height of about 1/2 of the interval across the transparent sheet and the absorber plate is disposed between the transparent sheet and the absorber plate in contact with the transparent sheet. With this arrangement, the heat losses caused by convection, radiation and conduction can be suppressed at the same time.

Abstract: A solar heat collector, wherein an absorber plate is mounted in a box member provided on the upper surface thereof with a transparent sheet. The surface of the absorber plate is subjected to a selective absorption surface treatment, and a transparent heat trap is bent into continuous V-shapes and disposed between the transparent sheet and the absorber plate. The transparent heat trap is formed of an ethylene fluoride series resin film having a film thickness of 1 to 100 .mu.m, having a degree of crystallinity of 35 to 55% and being transparent for the infrared rays as well as for the solar rays. With this arrangement, heat losses due to convection, radiation and conduction are suppressed at the same time, so that a high heat collecting efficiency can be secured.

Abstract: A heat sensitive portion is cooled when a temperature of an object to be measured is higher than the standard temperature while a heat sensitive portion is heated when a temperature of an object to be measured is lower than the standard temperature by Peltier's effect owing to an electric current passing through a thermopile from the outside. Thus, the sensitivity of a thermopile can be improved with a device which is simple and has an inexpensive construction.

Abstract: A heat sensitive portion is cooled or heated by Peltier's effect owing to an electric current passing through a thermopile from the outside and simultaneously said electric current passing through the thermopile is controlled in dependence upon a circumferential temperature of the thermopile. A correct temperature compensation can be achieved in a simple and inexpensive construction. In addition, a thermopile can be improved in its sensitivity.

Abstract: The present invention relates to a selective absorption surface of a solar collector in which a coating layer consisting of the predetermined composition of metal oxide is tightly adhered to a substrate having the mirror-like surface in the predetermined thickness.The composition of metal oxide consists of those comprising 0.001 - 0.15 wt % of C, 0.005 - 3.00 wt % of Si, 0.005-10.00 wt % of Mn, 11.00 - 30.00 wt % of Cr, 0.005 - 22.00 wt % of Ni, optionally, 0.75 - 5.00 wt % of Mo and the balance being Fe or those comprising instead of Cr, 0.001 - 5.0 wt % of at least one of metals selected from the group of N, Cu, Al, V, Y, Ti, Nb, Ta, U, Th, W, Zr, and Hf, the atom ratio of Metal/Carbon + additional element being more than 5.0. An acidic oxidation method and an alkaline oxidation method are applied to manufacture oxide of the metal compositions.It has been observed that the superior selective absorption surface showing high energy absorption factor at a wave length of 0.3 - 2.5 .mu.