| 摘要 |
PROBLEM TO BE SOLVED: To shorten a molding time and thereby, make it possible to manufacture a honeycomb panel efficiently by heating a sheet until its surface temperature exceeds a melt point through compressing and holding the sheet after being extruded into a molding, and commencing a cooling process at a point of time when a mold to be opened at a speed of a specific range is opened to a specific percentage value or higher of the thickness of the honeycomb panel intended for manufacturing. SOLUTION: First, a sheet 4 to be set in a honeycomb panel molder 9 and held by closing molds 12a, 12b, is heated until the surface temperature of the sheet 4 exceeds a melt point. In addition, a high temperature heat medium circulating through the molds 12a, 12b is replaced with one at a normal temperature or lower to cool the molds 12a, 12b at a point of time when the molds 12a, 12b to open at a rate of 3-15 mm/min. are opened to the value of 70% or higher of the thickness of a honeycomb panel intended for manufacturing. When the heat medium at a low temperature is caused to flow at a point of time when the molds 12a, 12b are opened to the value of not higher than 70% of the thickness intended for, the sheet 4 is cooled and set before reaching the thickness intended for, so that a uniform honeycomb structure cannot be obtained. Therefore, after the completion of cooling the sheet 4 while stretching the sheet 4 to the thickness intended for, the molds 12a, 12b are opened to remove the honeycomb panel. |
