| 摘要 |
A polymer resin spray coating apparatus is provided to reduce the cost of equipment without constructing a sedimentation tank, by coating the surface and back side of a steel plate by spraying the melted polymer resin. In a polymer resin spray coating apparatus(C) for coating a steel plate by spraying polymer resin melted solution, a nozzle(13) for jetting polymer resin containing the mixed gas flame and air is installed in the shape of a dual pipe(10) in a polymer resin melted solution eject port(12) having plural bored air suction holes(11,11'). A gas supply pipe(22) equipped with a gas opening and closing valve(21) is extended to the center of the rear end of the nozzle. An air and polymer resin supply pipe(32) equipped with an air and polymer resin opening and closing valve(31) is extended to the upper and lower sides of the rear end of the nozzle. A screw rod is inserted into the air and polymer resin supply pipe.
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