摘要:
An active energy beam-curable ink contains an active energy beam-curable resin and a photocation polymerization initiator; wherein, as the active energy beam-curable resin, a multifunctional epoxy compound, an oxetane compound and 33 to 55% by weight of a monofunctional alicyclic epoxy compound are contained. Accordingly, it is possible to stably discharge the active energy beam-curable ink from an ink jet head, and the ink having a high hardness and high adhesion after curing is provided.
摘要:
A hermetic electric compressor including sealed container and coil spring provided for elastically supporting electric compression element housed in sealed container. A consideration has been made to avoid the coincidence in the resonance frequency between coil spring mounted with electric compression element and mechanical vibration caused by electric compression element, or a cavity formed in space. By so doing, creation of a resonation with coil spring is suppressed, and noises and vibrations with the hermetic electric compressors are reduced.
摘要:
Provided is a hermetic compressor in which an electric element having a stator and rotor provided therein and a compression element driven by the electric element are housed and the compression element includes a shaft which has a main shaft portion and an eccentric shaft portion, a cylinder block, a main shaft bearing which is formed in the cylinder block and supports the main shaft bearing of the shaft, a piston which reciprocates, a connection mechanism which connects the piston to the eccentric shaft portion, and a thrust-ball bearing, the thrust ball bearing having a plurality balls and a holder portion for holding the balls, and the holder portion being formed of polymer obtained by polycondensating diaminobutane and adipic acid.
摘要:
An active energy beam-curable ink contains an active energy beam-curable resin and a photocation polymerization initiator; wherein, as the active energy beam-curable resin, a multifunctional epoxy compound, an oxetane compound and 33 to 55% by weight of a monofunctional alicyclic epoxy compound are contained. Accordingly, it is possible to stably discharge the active energy beam-curable ink from an ink jet head, and the ink having a high hardness and high adhesion after curing is provided.
摘要:
A reciprocating compressor includes a compressing unit placed over a motor unit. A crankshaft, which converts rotating action of the motor unit into reciprocating action of a piston of the compressing unit, has (a) a centrifugal pump provided at a lower section of the crankshaft, and (b) a pair of spiral pumps that communicate with the centrifugal pump and have leading grooves running in opposite directions to each other. The crankshaft also includes a pair of eccentric paths at its upper section. The eccentric paths open into an enclosed container and communicate with the spiral pumps respectively. This structure allows production of greater force for transferring lubricant oil regardless of the rotating direction of the crankshaft.
摘要:
The present invention is directed to a photocation-curable ink, an object of which is to improve the adhesion performance with respect to a recording medium without deteriorating the hardness of an ink coating film irrelevant to the type of a photopolymerization initiator. The photocation-curable ink according to the present invention uses a 2,2,6,6-tetramethylpiperidine 1-oxyl free radical or a compound including a 2,2,6,6-tetramethylpiperidine 1-oxyl free radical structure; wherein molar concentration of the 2,2,6,6-tetramethylpiperidine 1-oxyl free radical or the 2,2,6,6-tetramethylpiperidine 1-oxyl free radical structure in the ink is 19.6 mM to 39.2 mM. Accordingly, it is possible to obtain the photocation-curable ink having the high adhesion performance with respect to the printing medium.
摘要:
A hermetic electric compressor including sealed container and coil spring provided for elastically supporting electric compression element housed in sealed container. A consideration has been made to avoid the coincidence in the resonance frequency between coil spring mounted with electric compression element and mechanical vibration caused by electric compression element, or a cavity formed in space. By so doing, creation of a resonation with coil spring is suppressed, and noises and vibrations with the hermetic electric compressors are reduced.
摘要:
A cationic polymerization ink that can be hardened by cationic polymerization, includes monomers. The monomers include an epoxy monomer having an epoxy group as a functional group and an oxetane monomer having an oxetane group as the functional group. The monomers include a monofunctional monomer having one functional group and a polyfunctional monomer having at least two functional groups. A total functional group equivalent weight, which is a total of a functional group equivalent weight of the monofunctional monomer and a functional group equivalent weight of the polyfunctional monomer, is not less than 130 and not greater than 144. A ratio of the functional group equivalent weight of the polyfunctional monomer to the total functional group equivalent weight is not less than 23 percent and not greater than 38 percent.