| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vacuum forming method that closely forms a decorative film under a vacuum condition, and in which cooldown time of the decorative film or a molding apparatus after forming is shortened, and vacuum forming is performed efficiently. <P>SOLUTION: In a pressurization cooling process, a coolant gas C of an amount of a predetermined enclosing volume is enclosed into an upside forming space S, and from the inside of the upside forming space, air in the forming space of an amount of the same volume amount or less than the same volume amount of an enclosed volume of the coolant gas C is ejected, thereby cooling is performed with pressure in the upside forming space maintained. <P>COPYRIGHT: (C)2012,JPO&INPIT |
