POWDER COATING METHOD OF INNER SURFACE OF HOLLOW BODY

摘要

PROBLEM TO BE SOLVED: To provide a power coating method of inner surface of hollow body which shortens a coating time and thickens a coating film without making equipment larger and making an operation space wider. SOLUTION: A hollow body 2 with an inner surface to be coated is preheated to a prescribed temperature, and a power coating which is electrified is continuously sprayed along the inner surface 2a of the hollow body 2 toward the other end side of the hollow body 2 and is electrostatically attached to the inner surface 2a of the hollow body without allowing a coating gun 1 arranged on one end side of the hollow body 2 to be inserted into the hollow body 2.