摘要:
An inspection method for a bearing part includes the steps of: emitting X-rays onto a fatigued portion of a bearing part to be inspected; detecting annular diffracted X-rays (X-ray diffraction ring) diffracted by the fatigued portion; and estimating a use condition of the bearing part to be inspected, based on the detected annular diffracted X-rays (X-ray diffraction ring).
摘要:
An inspection method for a bearing part includes the steps of: emitting X-rays onto a fatigued portion of a bearing part to be inspected; detecting annular diffracted X-rays (X-ray diffraction ring) diffracted by the fatigued portion; and estimating a use condition of the bearing part to be inspected, based on the detected annular diffracted X-rays (X-ray diffraction ring).
摘要:
A dust collecting cell for a dust collector has a plurality of first electrode plates, a plurality of second electrode plates each disposed between the adjoining two of the first electrode plates in a parallel and spaced apart relation thereto, and a block defining a plurality of resistors having a high value of resistance which are connected between the first or second electrode plates and a source of high voltage supply. Even if a dielectric breakdown may occur between any two adjoining electrode plates, the resistors ensure that the discharge take place only as a local phenomenon, and that the cell make only a low noise accompanying the discharge.
摘要:
A combination of a container and a lid is disclosed. The container has an open top and a frusto-conical or cylindrical side wall. The lid is formed with a tongue and provided with an adhesive layer on one side thereof. A release is fixed to the outside of the side wall of the container so that the lid is normally attached releasably thereto.
摘要:
A plurality of jacks are a video signal jack, a left audio signal jack, and a right audio signal jack from left to right. Jack fixing protrusions are formed on a surface of each jack which surface is attached to a circuit board. The jack fixing protrusions are arranged differently among the respective jacks, and can be inserted only into attachment portions of the circuit board corresponding to the respective jacks. Namely, insertion of the respective jacks into incorrect attachment portions is made physically impossible, and erroneous insertion of the jacks can be prevented.
摘要:
A pattern design of a film for manufacturing a printed circuit board is made by using a CAD system, and a plurality of types of Gerber data are produced in which a series of various data has been encoded. For example, a pattern film is formed by combining pattern Gerber data with pattern cut Gerber data. Data for check marks whose sizes are different from each other is added as well as pattern data to each Gerber data such that their central coordinates are to be the same. In this manner, a judgment mark having the check marks combined therewith is formed on the pattern film having the items of Gerber data combined therewith.
摘要:
There is provided an electrolytic integrated polishing apparatus which enables high precision polishing of the internal surface of a long sized cylindrical workpiece such as a metallic tube. The apparatus includes a work supporting unit 13 for disposing the cylindrical workpiece W, so that the axial center of the cylindrical portion is aligned with the vertical direction, a rotation shaft 4 supported downward along the vertical direction and free-rotatably supported in an external tube 3 which is freely movable along the vertical direction, a tool electrode 5 including a grindstone directed to radial directions, attached to the tip of the rotation shaft 4, and a plastic tube 6 wound around the external surface of the external tube 3 for pressurization.
摘要:
A position-data converter and a motor-drive control device are connected. The position-data converter receives two-phase, sine-wave analog signals da and db from two first magnetic detectors, respectively, and converts these signals da and db to position data. On receiving a positioning instruction, the motor-drive control device calculates the value of current, from the current position signal generated by the position-data converter. The permanent magnets incorporated in a linear motor are used as components of a linear scale, as well.
摘要:
To improve the thermal efficiency when an exhaust heat recovery type combined cycle plant having a gas turbine and a steam turbine in combination is operated at a partial load, the gas turbine exhaust is recirculated and returned to the compressor, and the combustion temperature is prevented from being lowered at the partial load. Preferably, the temperature is maintained constant. In this way, the thermal efficiency during operation at partial load can be improved.
摘要:
A movable member is moved in a preset direction in a linear motor. A characteristic-change position-detecting unit detects a position where the magnetic characteristic of the magnets has abruptly changed. The position detected is used as an origin-setting reference position. A reference position for the absolute position of the magnetic linear encoder is set based on the reference position.