摘要:
A laser-radio frequency system for generating a high temperature beam and for directing and modulating the combined beam at a workpiece or target. The system includes a hollow circular electrode mounted within a circular nozzle and spaced apart from the nozzle to define an annular gap. A radio frequency generator having a hollow metal coil as its tank coil is connected to the nozzle and a pressurized inert gas is fed through the tank coil into the nozzle. When the generator is activated, a coherent R.F. electron stream is emitted from the electrode and the inert gas flows along the annular gap to sheath and focus the stream into an energy beam directed toward the workpiece. A laser generator provides a laser beam through the hollow portion of the electrode which is reflected and focused onto the workpiece; therefore an algebraic summation of both electromagnetic energies is obtained at the workpiece in the non-oxidizing atmosphere. The radio frequency tank coil may be connected to a source of powder for spraying a coating on the workpiece.
摘要:
A control circuit for controlling the temperature of a liquid vaporizing tool to a temperature required to vaporize the liquid. A low voltage is applied to heating elements on the tool to maintain the tool at the required temperature to vaporize the liquid during standby operation when there is no liquid being supplied to the tool. A high voltage is applied to the heating elements during operation of the tool, when liquid is being supplied thereto, so as to accommodate the increased heat input requirement caused by the vaporization of the liquid to maintain the tool at the vaporizing temperature. A thermal switch located on the tool opens or closes the respective voltage supply circuits to maintain the tool at the required vaporization temperature. In addition, to compensate for the thermal lag in the tool and to accommodate the sudden high heat demand caused by liquid vaporization when the liquid is initially supplied to the tool, the thermal switch is bypassed and the high voltage is applied to the heating elements for a specified time duration in anticipation of the thermal lag.
摘要:
A spray nozzle device according to an embodiment includes a first nozzle unit including a first internal passage connected to a first spray port into which a fluid is sprayed and a first injection port through which the fluid is injected to the first internal passage, a second nozzle unit that is located in the first internal passage and has a second spray port, through which plasma is sprayed, on one side adjacent to the first spray port, and a distribution unit that is located between the first nozzle unit and the second nozzle unit and partitions the first internal passage into a first partition passage connected to the first spray port and a second partition passage connected to the first injection port, wherein the distribution unit includes a plurality of connection passages connecting the first partition passage and the second partition passage.
摘要:
An interactive toy system is shown and described. The toy system can include a container forming a receptacle and having a top opening and a carriage. The carriage is disposed in the receptacle and rotatable about an axis between a first position and a second position. The carriage has a first receiving space and a second receiving space. The first receiving space is accessible through the top opening when the carriage is in the first position and inaccessible when the carriage is in the second position. The second receiving space is accessible through the top opening when the carriage is in the second position and inaccessible when the carriage is in the first position. The toy system can include a fog system configured to generate fog within the container. The fog obfuscating the first receiving space.
摘要:
Disclosed are a coating apparatus and a coating method. The coating apparatus includes a chamber, a support located in an interior space of the chamber and configured to support a substrate which is to be coated, an ejection nozzle configured to eject a coating material toward the support, and an electric field forming unit configured to form an electric field in a movement path of the coating material to provide kinetic energy for the coating material.
摘要:
The present disclosure sets forth an automated apparatus and method for applying gas plasma coatings to aircraft engine parts. The process and apparatus employ a plurality of sensors which continually monitor various process parameters associated with the coating process. If any of the measured parameters fall out of tolerance, the coating process is interrupted to allow a user to fix the source of the problem, where upon the process is reengaged. Moreover, the process and apparatus employ a pause resume circuit which uses predetermined durations for pausing and resuming the coating process.
摘要:
A technique may include controlling a vacuum pump to evacuate a vacuum chamber to high vacuum; controlling a plasma spray device to deposit a coating on a substrate in the vacuum chamber using plasma spray physical vapor deposition; and controlling a source of a reactive gaseous species to introduce a controlled amount of the reactive gaseous species into the vacuum chamber during the plasma spray physical vapor deposition process. The reactive gaseous species may react with at least one constituent of the coating to form a dispersed phase in at least part of the coating.