Abstract:
PROBLEM TO BE SOLVED: To provide a cylindrical bearing bush which keeps butted end faces in an intimate contact with each other and has an extremely high roundness on the inner peripheral surface without applying machining such as cutting and grinding onto the inner peripheral surface, and which is ideal for applications requiring a high dimensional precision, in particular, such as a motor bearing, a linear solenoid valve and a compressor, and also to provide its manufacturing method. SOLUTION: In a cylindrical bearing bush 1, a multiple-layer material 4 consisting of a plate-like back metal 2 made of nonferrous metals and a lubrication-coated layer 3 made of a synthetic resin composition which is coated and formed integrally on the surface of the back metal 2 is cylindrically wound with the lubrication-coated layer 3 faced inward, keeps butted end faces 5 in an intimate contact with each other, and is formed with a roundness of the inner peripheral surface between 3 and 15 μm. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a sliding structure combining two sliding members and a sliding support device using the sliding structure, having stable and low static friction coefficient and dynamic friction coefficient and achieving appropriate and effective low frictional sliding when sliding is required. SOLUTION: The sliding structure is provided with a plane member 2 having a sliding face 14 comprising a lubrication coating 13 made of thermosetting synthetic resin and an opposing member 3 having a sliding face 24 comprising synthetic resin. The lubrication coating 13 is a coating of a composition comprising reactive silicone oil with epoxy resin, hardener and an epoxy group and triazinethiol. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a cylindrical bearing bush having butted end faces closely fitted to each other and capable of providing extremely high roundness on its inner peripheral surface without applying machining such as cutting and grinding onto the inner peripheral surface. SOLUTION: In this cylindrical bearing bush 1 having an outer diameter D and an inner diameter d, a double-layer material 6 comprising a double-layer plate 4 formed of a plate-like back metal 2 made of an oxygen free copper or a tough pitch copper and a porous bronze sintered layer 3 formed integrally with the surface of the back metal 2 and a synthetic resin layer 5 filled in the clearances and covered on the surface of the porous bronze sintered layer 3 of the double-layer plate 4 are cylindrically wrapped with the synthetic resin layer 5 facing inward and their abutted end faces 7 are brought into contact with each other. The double-layer material 6 is formed so that the roundness of the inner peripheral surface thereof is 5 to 15 μm. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an underwater slide member having sufficient abrasion resistance even when used in an environment with high foreign matter concentration and also under a dry operation condition on startup. SOLUTION: This underwater slide member comprises a laminate of carbon fiber cloths impregnated with a phenolic resin composition comprising 5 to 40wt.% of one or more kinds of a ceramic filler selected from a ceramic particle and a ceramic fiber and the rest a phenolic resin. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a resin composition for a slide member and a slide member which exhibit excellent friction/wear characteristics in a wide range of application conditions. SOLUTION: The resin composition for the slide member consists of 10-30 wt% of barium sulfate, 10-25 wt% of a carbonized phenol resin, 1-10 wt% of a solid lubricant, and as the remainder a tetrafluoroethylene resin . The slide member is obtained by molding the above resin composition. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a multi-layered sliding member capable of exhibiting more excellent in abrasion resistance and load bearing resistance than a multi-layered sliding member containing lead or lead alloy, and to provide a rack guide in a rack pinion type steering device of automobiles using the same.SOLUTION: A multi-layered sliding member 51 has a back metal 52 containing a steel sheet, a porous metal sintered layer 53 formed on a surface of the back metal 52, and a sliding layer 54 containing a synthetic resin composition filled in pores and coated on a surface of the porous metal sintered layer 53, and the synthetic resin composition contains barium sulfate of 5 to 30 wt.%, magnesium silicate of 1 to 15 wt.%, phosphate of 1 to 25 wt.%, titanium oxide of 0.5 to 3 wt.% and the balance ethylene tetrafluoride resin.
Abstract:
PROBLEM TO BE SOLVED: To provide a resin composition for a sliding member, which is excellent in friction/wear characteristics even under many different use conditions including drying friction conditions, conditions in oil, oil lubrication conditions, and the like and a sliding member produced using the composition. SOLUTION: The resin composition for a sliding member comprises 5-40 wt.% barium sulfate, 1-30 wt.% phosphate, 1-10 wt.% one, two, or more types of resins selected from a polyimide resin, a baked phenolic resin, and a polyphenylene sulfone resin, and a tetrafluoroethylene resin composing the remainder. The sliding member is formed by filling the pores of and coating the surface of a sintered porous metal layer formed on steel back metal with the above resin composition. Alternatively, the sliding member is produced by filling the network of and coating the surface of a metal net with the resin composition. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for fixing, to an inside of bearing supporting body acting as a housing, a cylindrical bearing bush whose abutting surfaces are in close contact with each other and which has an extremely high-precision circularity of its inner circumferential surface attained without applying, to the inner circumferential surface, finish processing by means of machining such as cutting, grinding or the like. SOLUTION: The method for fixing the cylindrical bearing bush to the inside of bearing supporting body comprises processes of forming nearly cylindrical bearing bush 6, preparing a metallic mold 10, preparing a core bar 20; exerting a given pressure on the core bar 20 to apply an upset process to the nearly cylindrical bearing bush 6, applying an annealing process to the cylindrical bearing bush B, preparing the bearing supporting body 50, preparing the other core bar 60, and applying again the upset process to the cylindrical bearing bush B subsequently to the annealing process. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a cylindrical bearing bush with such a high dimensional precision as 5μm to 15μm in error in inner-circumferential-surface circularity without applying machining such as cutting, grinding or the like to the inner circumferential surface in the cylindrical bearing bush whose abutting end faces comprising a multiply layered material are made to be in close contact with each other, and further to provide its manufacturing method. SOLUTION: The cylindrical bearing bush 1 comprises a multiply-layered material 6 which is composed of a multiply-layered plate 4 consisting of a plate-like back metal 2 formed of oxygen-free copper or tough pitch copper, and a porous-bronze-sintered layer 3 acting as a porous-metal-sintered layer formed integrally on a surface of the back metal 2 and is further composed of a synthetic-resin layer 5 which is filled in a void of the porous-bronze-sintered layer 3 of the multiply-layered plate 4 and is coated on a surface of the porous bronze sintered layer 3. In the cylindrical bearing bush 1, the multiply-layered material 6 is cylindrically wound around with the synthetic-resin layer 5 faced inward. Besides, the abutting end face 7 are made to be in close contact with each other and the circularity of the inner circumferential surface is formed with an accuracy of 5 μm to 15 μm in error. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an under-water sliding member having sufficient wear resistance even in environment where the concentration of foreign matters is high, and good sliding property under the conditions of starting dry operation, and to provide a method of manufacturing the same. SOLUTION: The under-water sliding member includes a laminate of a carbon fiber cloth containing a phenol resin composition consisting of one or two or more types of 5-40 wt.% fillers selected from graphite, ethylene resin tetrafluoride, boron nitride and amorphous carbon, and a phenol resin for the rest. COPYRIGHT: (C)2010,JPO&INPIT