| 摘要 |
PURPOSE: An air tank manufacturing method is provided to prevent delamination of coating due to spatter by removing spatter from a welded portion and threads of a seat using a chisel and a gimlet. CONSTITUTION: An air tank manufacturing method comprises a drum manufacturing process in which a seat(13) is welded to a hole of a drum-shaped metal plate and a plating solution is applied to the inner surface of the metal plate to complete a drum(10), first and second cover manufacturing processes in which metal plates are molded into a hemispherical shape, a plating solution is applied to the inner surfaces of the hemispherical metal plates, the coated metal plates are joggled, a seat(14) is welded to a hole of the joggled metal plates, and spatter is removed from the welded seat to complete first and second covers(11,12), a cover fixing process in which the first and second covers are press-fitted to the right and left sides of the drum, and an air tank-shaped container forming process in which the edges of the drum are welded along the circumference thereof to obtain an air tank-shaped container.
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