| 摘要 |
A method of plasma spraying of polymer compositions is disclosed for use with a plasma spray system having a cathode and anode for developing an electric arc in the presence of an ionizable gas and in response to input electrical power whose magnitude may be selectively varied, an ionizable plasma gas source for supplying gas at selectable rates to the cathode and anode to produce a plasma jet which issues from a nozzle, a carrier gas source for supplying carrier gas to the plasma jet at selectable velocities and rate and at selectable locations downstream of the nozzle, and a feeder for feeding polymer composition particles to the carrier gas at selectable rates so that the carrier gas may deliver the particles to the plasma jet. The method includes operating the plasma spray system to direct the plasma jet, with particles, toward a target surface to coat the surface, and controlling the magnitude of the electrical power, the plasma gas supply rate, and the carrier gas supply velocity, and controlling the location of supply of the carrier gas, with polymer composition particles, to the plasma jet so that the particles are melted and delivered to the target surface before refusing or chain scissioning.
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