Abstract: Provided is a air purge device that can effectively discharge air.

Abstract: A rubber material recovery method according to at least one embodiment of the present invention comprises a step of supplying an oil product containing a softener to a rubber material, wherein an absolute difference between a solubility parameter of the softener and a solubility parameter of the rubber material is 1.7 or less.

Abstract: A machine according to at least one embodiment of the present invention comprises a rubber material to be supplied with an oil product containing a softener, wherein an absolute difference between a solubility parameter of the softener and a solubility parameter of the rubber material is 1.7 or less. The machine having a communication portion connecting the rubber material and an outside of the machine, and is configured to supply the oil product from a first end of the communication portion to a second end of the communication portion.

Abstract: A simulated sealant which comprises a polybutene resin and a polyethylene resin, wherein the polyethylene resin is in a sol state and is dispersed in the polybutene resin.

Abstract: A co-rotating scroll compressor that can achieve a longer operating life of a synchronous driving mechanism is provided. This compressor includes the synchronous driving mechanism that transmits driving force from a driving-side scroll member to a driven-side scroll member such that the driving-side scroll member and the driven-side scroll member perform rotation movement in a same direction at a same angular velocity. The synchronous driving mechanism includes a crankpin (15) and a rolling bearing (18) that rotatably supports a shaft portion (15b) of the crankpin (15). The rolling bearing (18) includes an inner ring (18b) fitted to the shaft portion (15b) and an outer ring (18a) fitted to a first side plate (27) that supports the shaft portion (15b). A sealing member (40) that extends to a side portion of the inner ring (18b) is fixed to a side portion of the outer ring (18a).

Abstract: An object of the present invention is to provide a refrigerant circulation device and method that can suppress acid generation caused by decomposition of a refrigerant containing an HFO or HCFO. The refrigerant circulation device has a compressor, a condenser, expansion valves and an evaporator connected by a main pipe to form a refrigerant circulation circuit through which a refrigerant is circulated, the refrigerant circulation circuit being filled with a refrigerant containing a hydrofluoroolefin or a hydrochlorofluoroolefin having a carbon-carbon double bond within the molecular structure, wherein the refrigerant circulation device includes a drive that drives the compressor via a speed increaser, and a drive cooling unit that cools the drive with the refrigerant condensed in the condenser, and a desiccant that can trap moisture is disposed in the evaporator or the drive cooling unit.

Abstract: An object of the present invention is to provide a refrigerant circulation device and method that can suppress acid generation caused by decomposition of a refrigerant containing an HFO or HCFO. The refrigerant circulation device has a compressor, a condenser, expansion valves and an evaporator connected by a main pipe to form a refrigerant circulation circuit through which a refrigerant is circulated, the refrigerant circulation circuit being filled with a refrigerant containing a hydrofluoroolefin or a hydrochlorofluoroolefin having a carbon-carbon double bond within the molecular structure, wherein the refrigerant circulation device includes a drive that drives the compressor via a speed increaser, and a drive cooling unit that cools the drive with the refrigerant condensed in the condenser, and a desiccant that can trap moisture is disposed in the evaporator or the drive cooling unit.

Abstract: An object is to provide a lubricating-oil composition for forging molding excellent in lubricity, and a forging molding apparatus also suitable for the lubricating-oil composition of the present invention. The lubricating-oil composition for forging molding of the present invention includes at least two types of solid lubricants having different particle sizes, an extreme-pressure agent, and the balance of base oil. Also, the forging molding apparatus of the present invention includes paired molds formed of an upper mold and a lower mold interposing a forging material therebetween for molding and a lubricating-oil-composition spraying device for spraying the lubricating-oil composition for forging molding onto a surface of the molds, wherein the spraying device includes an oil-feeding tank storing the lubricating-oil composition and a supply tube for suctioning the lubricating-oil composition from the oil-feeding tank for supply to a nozzle, and the supply tube comprises a plurality of suction ports.

Abstract: An object is to provide a lubricating-oil composition for forging molding excellent in lubricity, and a forging molding apparatus also suitable for the lubricating-oil composition of the present invention. The lubricating-oil composition for forging molding of the present invention includes at least two types of solid lubricants having different particle sizes, an extreme-pressure agent, and the balance of base oil. Also, the forging molding apparatus of the present invention includes paired molds formed of an upper mold and a lower mold interposing a forging material therebetween for molding and a lubricating-oil-composition spraying device for spraying the lubricating-oil composition for forging molding onto a surface of the molds, wherein the spraying device includes an oil-feeding tank storing the lubricating-oil composition and a supply tube for suctioning the lubricating-oil composition from the oil-feeding tank for supply to a nozzle, and the supply tube comprises a plurality of suction ports.

Abstract: A high-temperature lubricating oil composition is provided, which is resistant to hardening and sludge formation, and displays minimal evaporation loss and superior thermal stability, even under practical high-temperature open system conditions such as those found in a tenter. A lubricating oil composition that provides excellent lubrication without damaging members used within working machinery is also provided. The lubricating oil composition comprises a polyolester based synthetic oil and a C12 to C72 fatty acid and/or a diphenylamine derivative containing an arylalkyl group with a number average molecular weight of 400 to 800.

Abstract: A high-temperature lubricating oil composition is provided, which is resistant to hardening and sludge formation, and displays minimal evaporation loss and superior thermal stability, even under practical high-temperature open system conditions such as those found in a tenter. A lubricating oil composition that provides excellent lubrication without damaging members used within working machinery is also provided. The lubricating oil composition comprises a polyolester based synthetic oil and a C12 to C72 fatty acid and/or a diphenylamine derivative containing an arylalkyl group with a number average molecular weight of 400 to 800.