Abstract: One embodiment of the present invention relates to an elastomer composition, a sealing material, or a method for producing a sealing material, in which the elastomer composition includes a crosslinkable fluoroelastomer (A) [provided that the elastomer (A) is a compound having no hydrosilyl group] and a composition (B) that contains at least one ethylenically unsaturated bond-containing compound selected from compounds having a perfluoro skeleton having an ethylenically unsaturated bond [provided that the compounds are compounds other than the elastomer (A)] and compounds having a siloxane skeleton having an ethylenically unsaturated bond, the composition (B) having a minimum torque (ML) at 60° C. of 0.5 kgf·cm or more as measured with a CURELASTOMETER.

Abstract: A vibration analysis system includes: a signal input portion that receives an input of a vibration signal detected by a sensor; an intensity calculation portion that calculates a plurality of signal intensities corresponding to a plurality of frequency bands by analyzing the vibration signal; a first distance calculation portion that calculates a first Mahalanobis distance of a first signal space configured of the plurality of signal intensities with respect to a first unit space; a gravity center calculation portion that calculates two-dimensional gravity center data indicating gravity center positions of the plurality of signal intensities; a second distance calculation portion that calculates a second Mahalanobis distance of a second signal space configured of the gravity center data with respect to a second unit space; and an abnormality prediction portion that predicts an abnormality generation period of the object based on the first Mahalanobis distance and the second Mahalanobis distance.

Abstract: An embodiment of the present invention relates to a bonded object or a method for manufacturing a bonded object, the bonded object having bases bonded therein while placing an adhesive layer in between, the adhesive layer being obtained from a fluororubber composition that contains at least one fluororubber selected from fluoroelastomer (FKM) and perfluoroelastomer (FFKM), and has a Mooney viscosity (ML 1+10) at 121° C., measured in accordance with ASTM D1646, of 80 to 115.

Abstract: A metal gasket having an annular planar shape with a vertical cross-section having a sideways U-shape has angular portions in an upper surface portion and a lower surface portion, respectively. In the angular portions, inclined faces inclined toward the inner peripheral direction and having a minimum thickness portion with a thickness corresponding to 3-25% of the height of the metal gasket are formed at a boundary between an upper surface of the upper member and an inner peripheral surface of an inner peripheral portion and a boundary between a lower surface of the lower surface portion and the inner peripheral surface of the inner peripheral portion, respectively. A height from the upper surface of the upper surface portion to a vertex of the angular portion and a height from the lower surface of the lower surface portion to a vertex of the angular portion are 0.01 mm or greater.

Abstract: A dust seal ring includes a body portion of an approximately rectangular shape, a first lip extending, on an inner surface in a radial direction of the body portion, while inclining inwardly away from the body portion on one side in a direction of extension of a central axis, and a second lip extending, on the inner surface in the radial direction of the body portion, while inclining inwardly away from the body portion on the other side in the direction of extension of the central axis.

Abstract: The present invention relates to an annular seal material comprising a core and an outer layer covering a periphery of the core, wherein the outer layer has a thick film portion and a non-thick film portion in a cross section in a circumferential direction. According to the present invention, provided are an annular seal material that is constituted of a core and an outer layer and that suppresses cracking in the outer layer and protrusion of the core from the outer layer, and a method for manufacturing the same.

Abstract: The present invention relates to a method for manufacturing an annular seal material comprising a core and an outer layer covering a periphery of the core, comprising: a preforming step of providing one or two or more rope-like preforms comprising an uncrosslinked core made of a crosslinkable rubber composition for a core, and an uncrosslinked outer layer, made of a crosslinkable rubber composition for an outer layer, covering a periphery of the uncrosslinked core; a first hot pressing step of placing the rope-like preform in a first mold to hot press mold a portion other than end portions of the rope-like preform; and a second hot pressing step of contacting two end portions of the rope-like preform with each other and placing the same in a second mold to carry out hot press molding, in presented order.

Abstract: An information processing device includes a first evaluation unit that determines a type of a target seal material based on a color value of the target seal material and a color value of each of a plurality of candidate seal materials, a second evaluation unit that evaluates, based on a taken image of a flange before being fastened using the target seal material, a state of the flange being fastened, a third evaluation unit that evaluates a fastening state of a pair of the flanges with the target seal material interposed between the flanges based on a predetermined condition regarding fastening of the flange, and an output control unit that outputs advice information on the fastening of the flange using the target seal material based on respective evaluation results of the first to third evaluation units.

Abstract: The present invention relates to an annular seal material comprising a core and an outer layer covering a periphery of the core, wherein the core and the outer layer comprises a crosslinked product of a crosslinkable rubber composition having a different color from each other either after hot press molding or after secondary crosslinking or both. According to the present invention, provided are an annular seal material that can be mass-produced by using different materials for a core and an outer layer, respectively, and a method for producing the same.

Abstract: The present invention relates to an annular seal material comprising a core and an outer layer covering a periphery of the core, wherein in the annular seal material, the outer layer has a parting line on each of an outer diameter side and an inner diameter side, and in the annular seal material, a thickness of the outer layer in at least a part of a portion where the parting line is present is smaller than a thickness of the outer layer in a portion where the parting line is absent. According to the present invention, provided are an annular seal material having a parting line having improved visibility and a method for manufacturing the same.

Abstract: The present invention relates to an annular laminate including a substrate and a rubber coating film laminated in contact with the substrate, wherein the rubber coating film includes a crosslinked product of a composition including a crosslinkable perfluoroelastomer (FFKM), a crosslinking agent including at least one of compounds represented by general formulas (1) to (3), and a solvent, and a thickness of the rubber coating film is 1 ?m or more and 500 ?m or less. According to the present invention, provided are an annular laminate that has good hermetic closure even with a low crushing pressure and can be used as a seal material exhibiting high radical resistance at a high temperature, and a method for manufacturing the same.

Abstract: Provided is a rubber composition for sealing material which contains 100 parts by mass of a rubber component, 50 to 140 parts by mass of silica, 1 to 20 parts by mass of a silane coupling agent, and 15 to 35 parts by mass of carbon black. The rubber component is preferably an ethylene-propylene-diene rubber.

Abstract: Provided are an elastomer composition including a first fluoroelastomer that is a copolymer of tetrafluoroethylene and perfluoro (alkoxyvinyl ether) and a second fluoroelastomer different from the first fluoroelastomer, and a sealing material including a crosslinked product of the elastomer composition.

Abstract: A determination system includes an imaging unit that captures an image of a gasket already used for flange fastening and an analyzing unit that analyzes, based on the image captured, a contact mark formed on the gasket as a result of contact between the gasket and a pair of flanges when the flanges are fastened through the gasket. The analyzing unit includes a detection unit that detects, in the captured image, a contact mark region indicative of the contact mark and enclosed with a first line and a second line, a distance calculation unit that calculates a distance between the first line and the second line, and a state determination unit that determines, based on at least the distance, whether the flanges are properly fastened through the gasket.

Abstract: To provide a method of manufacturing a low heat-resistant sensor that has high chemical resistance, excellent drip-proof properties, and excellent dust-proof properties.