Abstract: Disclosed is a laser cutting apparatus for laser cutting a workpiece including: a laser irradiation device having a laser beam irradiation unit for emitting a laser; a laser processing head disposed at a side of the workpiece of the laser beam irradiation unit; and a control unit, wherein the laser processing head has a nozzle part at a tip end on a side of the workpiece, and wherein the control unit performs control on at least one of the laser irradiation device and the laser processing head such that the laser is emitted onto the workpiece while interfering with an inner circumferential surface of the nozzle part.

Abstract: A robot controller that controls an operation of a robot includes circuitry and memory equipment. The memory equipment stores target data indicating a target installation state of a transferrer that supports and moves at least one of the robot or a target object handled by the robot. The circuitry outputs to a display an input image showing a measurement position of an installation state of the transferrer together with an image of the transferrer. The circuitry receives measurement data of the installation state. The circuitry compares the measurement data with the target data to determine the presence or absence of the abnormality of the installation state.

Abstract: A robot controller that controls an operation of a robot includes circuitry and memory equipment. The memory equipment stores target data indicating a target installation state of a transferrer that supports and moves at least one of the robot or a target object handled by the robot. The circuitry outputs to a display an input image showing a measurement position of an installation state of the transferrer together with an image of the transferrer. The circuitry receives measurement data of the installation state. The circuitry compares the measurement data with the target data to determine the presence or absence of the abnormality of the installation state.

Abstract: Hafnium carbide powder for plasma electrodes is represented by a chemical formula HfCx (where x=0.5 to 1.0). The content of carbon particles contained as impurities in the hafnium carbide powder is less than or equal to 0.03% by mass. The hafnium carbide powder preferably has an average particle size of 0.5 to 2 ?m. To produce the hafnium carbide powder, a pellet made from mixed powder of hafnium oxide and carbon is first placed in a second crucible made of silicon carbide. Then, the hafnium carbide powder is formed by heating the second crucible at 1800 to 2000° C. with the second crucible arranged in a first crucible made of carbon.

Abstract: A liquid supply device which supplies liquid to a target object, comprises a cylinder having both ends closed; a piston which comparts an inner space of the cylinder into a first space and a second space, and is relatively slidable on an inner wall surface of the cylinder; a piston rod which extends to penetrate an end portion of the cylinder and has a tip end portion connected to the piston; a frame member to which a portion of the piston rod which is located outside the cylinder is fastened; a drive section which causes the cylinder to reciprocate in a direction in which the piston rod extends; a first flow line which is in communication with the first space to flow the liquid therethrough; and a second flow line which is in communication with the second space to flow the liquid therethrough.

Abstract: A liquid supply device which supplies liquid to a target object, comprises a cylinder having both ends closed; a piston which comparts an inner space of the cylinder into a first space and a second space, and is relatively slidable on an inner wall surface of the cylinder; a piston rod which extends to penetrate an end portion of the cylinder and has a tip end portion connected to the piston; a frame member to which a portion of the piston rod which is located outside the cylinder is fastened; a drive section which causes the cylinder to reciprocate in a direction in which the piston rod extends; a first flow line which is in communication with the first space to flow the liquid therethrough; and a second flow line which is in communication with the second space to flow the liquid therethrough.

Abstract: Conventionally, when a canned motor is used in the drive part of a rotary dry vacuum pump, there is found a problem that reaction produced gas flows into the interior of the canned motor to thereby break down the canned motor and thus the rotary dry vacuum pump.