Abstract: A thrust bearing is equipped with a resin coating applied to the surface of a base material. Lattice-shaped discharge grooves are formed in the surface of the thrust bearing, and planer protrusions having a square shape or the like are formed at the adjacent positions thereof. Each corner part of each planer protrusion form a sliding surface that slides with respect to a counterpart member. Contaminants such as wear particles that have infiltrated between the counterpart member and the sliding surface fail into the discharge grooves and then are discharged outside of the sliding surface. The chamfering of each corner part to a rounded shape prevents the contaminants from accumulating in the discharge grooves, thus preventing the contaminants from biting into the planer protrusions.

Abstract: A scroll compressor which can be mounted in an automobile has a slide bearing resulting from baking onto a back metal a sliding layer of 5-60 wt % graphite having an average diameter of 5-50 ?m and a graphitization degree of at least 0.6, the remainder containing a polyimide resin and/or a polyamide-imide resin. The form of the graphite has: (a) an average shape factor (YAVE) as defined of 1-4 for the particles excluding the minute particles that are no greater than 0.5 times the average diameter, and there being at least 70% by number of particles having a shape factor (Y) in the range of 1-1.5; or (b) graphite particles having a particle ratio of at least 0.5 being at least 50% of the total by number.

Abstract: A swash plate of a swash plate-type compressor is covered with a resin-based coating layer containing 5 to 60 mass % of spherical graphite particles having an average particle diameter of 5 to 50 ?m, the balance being one or more species selected from polyimide resin and polyamide-imide resin. The spherical graphite particles excepting minute particles having a particle diameter 0.5 times or smaller the average particle diameter, have an average shape coefficient (YAVE) falling within a range of 1 to 4, and 70% or more in number of the spherical graphite particles have a shape coefficient (Y) within a range of 1 to 1.5, YAVE=total[{PMi2/4?Ai}]/i Y=PM2/4?A wherein “total” indicates that a value in [ ] is totalized for number “i”, “PM” indicates the circumferential length of one particle, “A” indicates a cross sectional area of one particle, and “i” indicates the measurement number.

Abstract: A shoe 5 includes a spherical portion 5A in sliding contact with a sliding surface 4a that is a hemispherical concave portion of a piston 4, an end surface portion 5B in sliding contact with a swash plate 3, and a circular cylindrical portion 5C formed between the spherical portion 5A and the end surface portion 5B. Linear oil grooves 5F are formed in the outer peripheral surface of the cylindrical portion 5C.

Abstract: A swash plate compressor 1 includes a swash plate 3 which rotates around a rotary shaft 2, a piston 4 which moves forward and backward in response to the rotation of the swash plate 3 and in which a hemispherical concave sliding surface 4a is formed, and a shoe 5 in which there are formed a flat end surface portion 12 which comes into sliding contact with the swash plate 3 and a spherical surface portion 11 which comes into sliding contact with the sliding surface 4a of the piston 4. A columnar portion 13 is formed between the spherical surface portion 11 and the end surface portion 12 in the shoe 5, and in a boundary area between the columnar portion 13 and the spherical surface portion 11, there is formed a spherical-surface-portion side flange 14 which protrudes radially outward and constitutes the spherical surface portion.

Abstract: A thrust bearing is equipped with a resin coating applied to the surface of a base material. Lattice-shaped discharge grooves are formed in the surface of the thrust bearing, and planer protrusions having a square shape or the like are formed at the adjacent positions thereof. Each corner part of each planer protrusion form a sliding surface that slides with respect to a counterpart member. Contaminants such as wear particles that have infiltrated between the counterpart member and the sliding surface fail into the discharge grooves and then are discharged outside of the sliding surface. The chamfering of each corner part to a rounded shape prevents the contaminants from accumulating in the discharge grooves, thus preventing the contaminants from biting into the planer protrusions.

Abstract: [Problem] To exchange the roller bearing that has been used in a scroll compressor mounted in an automobile with a m slide bearing. To provide a slide bearing having a performance that is at least equivalent to that of a roller bearing. [Solution] The slide bearing results from baking onto a back metal a sliding layer of 5-60 wt % graphite having an average diameter of 5-50 ?m and a graphitization degree of at least 0.6, the remainder comprising a polyimide resin and/or a polyamide-imide resin. The form of the graphite has: (a) an average shape factor (YAVE) as defined of 1-4 for the particles excluding the minute particles that are no greater than 0.5 times the average diameter, and there being at least 70% by number of particles having a shape factor (Y) in the range of 1-1.5; or (b) graphite particles having a particle ratio of at least 0.5 being at least 50% of the total by number.

Abstract: A hemispherical shoe (sliding member) 1 has a flat sliding surface 3, which is quenched to form a quenched portion 7. A part of the quenched sliding surface is partially annealed to form an annealed portion 6. When an oil film pressure acts on the sliding surface 1, the annealed portion 6 is deformed by pressure so that the surface thereof has a concave portion 6A. In the annealed portion 6, a remaining quenched portion 8 may remain at the center part thereof. The concave portion 6A can be used as an oil reservoir or an oil flow path, so that an excellent seizure resistance can be ensured.

Abstract: A swash plate type compressor includes a swash plate rotating around a rotating shaft, pistons that advance and retreat with the rotation of the swash plate and formed with a hemispherical concave sliding surface, and shoes formed with a flat end surface part in sliding contact with the swash plate and a spherical surface part in sliding contact with the sliding surface of the piston. A cylindrical part is formed between the spherical surface part and the end surface part of the shoe, and the shoe is formed with a flange part that surrounds the boundary portion between the cylindrical part and the end surface part and is in sliding contact with the swash plate. Further, the flange part is located on the inside of an imaginary spherical surface including the sliding surface of the piston.

Abstract: A swash plate of a swash plate-type compressor is covered with a resin-based coating layer containing 5 to 60 mass % of spherical graphite particles having an average particle diameter of 5 to 50 ?m, the balance being one or more species selected from polyimide resin and polyamide-imide resin. The spherical graphite particles excepting minute particles having a particle diameter 0.5 times or smaller the average particle diameter, have an average shape coefficient (YAVE) falling within a range of 1 to 4, and 70% or more in number of the spherical graphite particles have a shape coefficient (Y) within a range of 1 to 1.5, YAVE=total[{PMi2/4?Ai}]/i Y=PM2/4?A wherein “total” indicates that a value in [ ] is totalized for number “i”, “PM” indicates the circumferential length of one particle, “A” indicates a cross sectional area of one particle, and “i” indicates the measurement number.

Abstract: A swash plate type compressor 1 arranged with a swash plate 3 which rotates around a shaft 2, a piston 4 which moves back and forth with the rotation of the swash plate 3 and formed with a spherical indent part 4a, and a shoe 5 formed with a flat part 5a which slides against the swash plate 3 and a spherical surface part 5b which slides in the spherical indent part 4a formed on the piston 4, wherein a coating layer 3b comprised s formed on the surface of the swash plate 3 and spiral or concentric shaped grooves 3c are formed with the center of the swash plate 3 at the center on the surface of the coating layer 3b, a diameter of the flat part 3 is set at 10.5 mm or less, and the pitch of the concentric protrusion 3d is set so that the sum of the length of the concentric protrusions 3d which contact the flat part 5a is 300 mm or more.

Abstract: This invention provides a reference electrode that can be downsized and stable in voltage. The reference electrode in accordance with this invention is a reference electrode that does not require an internal aqueous solution such as a KCl aqueous solution and comprises a metal body, a slightly soluble salt film that comprises a slightly soluble salt of the metal body and that coats the metal body and a hydrophobic ionic liquid that is arranged to make contact with both the slightly soluble salt film and a sample to be measured.

Abstract: A hemispherical shoe (sliding member) 1 has a flat sliding surface 3, which is quenched to form a quenched portion 7. A part of the quenched sliding surface is partially annealed to form an annealed portion 6. When an oil film pressure acts on the sliding surface 1, the annealed portion 6 is deformed by pressure so that the surface thereof has a concave portion 6A. In the annealed portion 6, a remaining quenched portion 8 may remain at the center part thereof. The concave portion 6A can be used as an oil reservoir or an oil flow path, so that an excellent seizure resistance can be ensured.

Abstract: A swash plate compressor 1 includes a swash plate 3 which rotates around a rotary shaft 2, a piston 4 which moves forward and backward in response to the rotation of the swash plate 3 and in which a hemispherical concave sliding surface 4a is formed, and a shoe 5 in which there are formed a flat end surface portion 12 which comes into sliding contact with the swash plate 3 and a spherical surface portion 11 which comes into sliding contact with the sliding surface 4a of the piston 4. A columnar portion 13 is formed between the spherical surface portion 11 and the end surface portion 12 in the shoe 5, and in a boundary area between the columnar portion 13 and the spherical surface portion 11, there is formed a spherical-surface-portion side flange 14 which protrudes radially outward and constitutes the spherical surface portion. The lubrication of the shoe is satisfactorily performed and the entry of foreign matter into the sliding parts can be prevented.

Abstract: A swash plate type compressor 1 includes a swash plate 3 rotating around a rotating shaft, pistons 4 that advance and retreat with the rotation of the swash plate and each are formed with a hemispherical concave sliding surface, and shoes 5 each formed with a flat end surface part 12 being in sliding contact with the swash plate and a spherical surface part 11 being in sliding contact with the sliding surface 4a of the piston. A cylindrical part 13 is formed between the spherical surface part and the end surface part of the shoe, and the shoe is formed with a flange part 14 that surrounds the boundary portion between the cylindrical part and the end surface part and is in sliding contact with the swash plate. Further, the flange part is located on the inside of an imaginary spherical surface S including the sliding surface of the piston, and the diameter d2 of the cylindrical part is smaller than the diameter d3 of the opening of the sliding surface of the piston. The shoe can be lubricated satisfactorily.

Abstract: A shoe 5 includes a spherical portion 5A in sliding contact with a sliding surface 4a that is a hemispherical concave portion of a piston 4, an end surface portion 5B in sliding contact with a swash plate 3, and a circular cylindrical portion 5C formed between the spherical portion 5A and the end surface portion 5B. A plurality of linear oil grooves 5F are formed in the outer peripheral surface of the cylindrical portion 5C. A lubricant oil separated from a refrigerant is held in each of the oil grooves 5F of the cylindrical portion 5C of the shoe 5 when a swash plate compressor 1 is in a non-operating state. When the swash plate compressor 1 is started, the lubricant oil in the oil grooves 5F is fed to the spherical portion 5A and the end surface portion 5B which are sliding portions. The shoe 5 having excellent lubricity in comparison with a conventional case can be thereby provided.

Abstract: The present claimed invention is to provide a reference electrode wherein variations of a potential difference at a liquid junction can be removed almost completely, contamination of a sample solution can be minimized, a frequency to supply and replace an internal solution is lessened, the liquid junction is prevented from being clogged, high durability for a long term can be maintained and a measurement with high accuracy can be conducted, and comprises an internal electrode 21, an internal solution 22 that makes a contact with the internal electrode 21 and a liquid junction 23 that continues into the internal solution 22, wherein the liquid junction 23 is made by the use of a gelled hydrophobic ionic liquid.

Abstract: This invention provides a reference electrode (3) that can be downsized and stable in voltage. The reference electrode (3) in accordance with this invention is a reference electrode (3) that does not require an internal aqueous solution such as a KCl aqueous solution and comprises a metal body (31), a slightly soluble salt film (32) that comprises a slightly soluble salt of the metal body (31) and that coats the metal body (31) and a hydrophobic ionic liquid (33) that is arranged to make contact with both the slightly soluble salt film (32) and a sample to be measured.

Abstract: A process of producing cooked noodles, including the step of heating cooked noodles by direct contact with saturated steam at 105° to 150° C. or the step of heating comprising the substeps of directly applying saturated steam at 105° to 150° C. to cooked noodles intermittently and steaming the noodles by direct contact with saturated steam at 90° to 100° C. The resulting cooked noodle product is preservable for a long time without the aid of additives and yet keeps a pleasant texture.

Abstract: The present claimed invention is to provide a reference electrode wherein variations of a potential difference at a liquid junction can be removed almost completely, contamination of a sample solution can be minimized, a frequency to supply and replace an internal solution is lessened, the liquid junction is prevented from being clogged, high durability for a long term can be maintained and a measurement with high accuracy can be conducted, and comprises an internal electrode 21, an internal solution 22 that makes a contact with the internal electrode 21 and a liquid junction 23 that continues into the internal solution 22, wherein the liquid junction 23 is made by the use of a gelled hydrophobic ionic liquid.