| 摘要 |
The present invention relates to an apparatus for simultaneously coating both sides of a metal pipe with metal powder which includes a frame; a pipe roller which has multiple turning rollers provided in an upper part of the frame; a powder coater which is inserted into a metal pipe rotated by the turning rollers and has a powder spray gun, which moves forward and backward; a plastic powder flame coater which is closely arranged to the outer surface of the metal pipe; at least one plastic powder supplier which is connected to the powder coater and plastic powder flame coater for supplying plastic powder; an air compressor which is connected to at least one plastic powder supplier and powder coater; and a combustion gas supplier which is connected to the plastic powder flame coater. A metal pipe having one open side or both open sides of inlet and outlet, or a metal tank, which forms a flange with a radius greater than or equal to 5 cm in one side or both sides, can be simultaneously plastic powder-coated using the present invention. |
