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Method for depositing metal elementary substance thin film by atmospheric cold plasmas

The invention discloses a method for depositing a metal elementary substance thin film by atmospheric cold plasmas. The method comprises the following steps:step 1, mixed gas is excited and ionized togenerate the atmospheric cold plasmas, and the atmospheric cold plasmas form plasma light flame in a cavity of a nozzle; step 2, a metal compound solution is atomized and then enters the cavity of the nozzle; and step 3, under surrounding protection of the protective gas, the plasma light flame and fog drops generate action, solvent in the fog drops is evaporated, a metal compound in the fog drops is reduced into metal particles, and the metal particles are sprayed onto a substrate to be deposited to form the continuous metal elementary substance thin film. According to the method, the metalelementary substance thin film can be deposited under normal pressure, reaction temperature is low, the method is suitable for a heat sensitive substrate, a vacuum or closed deposition chamber is notneeded, so that the size of the substrate is not limited by space, and application range of the method is expanded; and the metal elementary substance thin film prepared by the method is stable in property, post-processing is not needed, so that the technological process is shortened, and production efficiency is improved.
Owner:CHANGAN UNIV

Liquid supply device and liquid ejecting apparatus

The invention provides a liquid supply device and liquid ejection apparatus, with the capability of securing a relatively high bubble discharge ability at the time of the choke cleaning of the liquid ejecting head, even in a configuration in which the feeding pump type liquid supply section is provided. Enough liquid is supplied to the liquid ejecting head when performing a suction drive of the pump. A printer (11) comprises a liquid supplying device (21), wherein the liquid supplying device (21) comprises a pump (23), an unidirectional valve (44) for suction on upstream side of the pump (23), an unidirectional valve (45) for ejection on downsream side of the pump (23), wherein the liquid supplying device (21) is connected with a recording head unit (20) by a liquid supplying pipe (22). In the recording head unit (20), the middle of the liquid flow channel (30) communicated with a nozzle (29) is provided with a choke valve (31), a buffer chamber (32) and a self-seal valve (33) which are arranged in turn from the downstream side. The liquid volume obtained by the sum of the flow channel volume from the choke valve (31) to the nozzle (29) and the volume of a cover (26) is lower than the liquid amount driven by the pump form one time. In addition, the buffer chamber (32) comprises a liquid storage chamber partly blocked by the film and the film comprises the structure of non-spring force-application type which is not applied with force by the spring.
Owner:SEIKO EPSON CORP

Finger mechanism of robot hand

A finger unit (2) of a finger mechanism (1) of a robot hand comprises a tip-side finger link (3), a root-side finger link (4), and a finger joint portion (5) for connecting the tip-side finger link (3) and the root-side finger link (4). The tip-side finger link (3) is constantly applied with torque in the robot hand gripping direction (A) around a finger joint shaft (6) by a torsion coil spring (8), reducing output torque of an electromagnetic motor (7) necessary for driving the finger mechanism (1) in the gripping direction (A). Due to this structure, the finger mechanism of the robot hand which can provide necessary driving force in the robot hand gripping direction using a low-output and compact actuator can be realized.
Owner:HARMONIC DRIVE SYST IND CO LTD

Refrigerant piping and refrigeration cycle apparatus

InactiveCN110249189AReduce pulsation and abnormal soundSuppresses increase in loading spaceRotary/oscillating piston combinations for elastic fluidsHeat pumpsPhase differenceEngineering
A refrigerant piping according to a first aspect of the present disclosure is provided with dividing parts (162a, 162g), a first flow passage part (16a), a second flow passage part (16b), and merging parts (162b, 162g). The dividing parts divide the flow of a refrigerant at a refrigerant outlet-side of an evaporator (14) of a refrigeration cycle (10) and at a refrigerant inlet-side of a compressor (11) of the refrigeration cycle. In the first flow passage part and the second flow passage part, the refrigerants divided in the dividing part flow in parallel to each other. The refrigerants flowing through the first flow passage part and the second flow passage part merge at the merging part. The first flow passage part and the second flow passage part have flow passage lengths different from each other. According to the refrigerant piping, since the flow passage lengths of the first flow passage part and the second flow passage part are different from each other, a phase difference is generated between the pulsations of the refrigerant flow of the first flow passage part and the refrigerant flow of the second flow passage part, and an effect in which the pulsations cancel each other occurs. As a result, pulsation noise can be reduced. Also, the pulsation noise from the compressor can be reduced while maximally suppressing an increase in mounting space or pressure loss.
Owner:DENSO CORP
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