| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a laminated board capable of hot pressing a plurality of fiber-containing boards while aligning with high accuracy.SOLUTION: A method of manufacturing a laminated board has a step (A) for obtaining a nonbonded laminated board 1, by laminating a plurality of fiber-containing boards 11 containing inorganic fibers and resin while arranging a prepreg 21 between respective boards, a step (B) for forming a through hole 30 so that the inorganic fibers F contained in the plurality of fiber-containing boards 11 are exposed for the nonbonded laminated board 1, and a step (D) of performing hot press for pressing the nonbonded laminated boards while heating to the softening temperature or more of the prepreg. The method of manufacturing a laminated board further has a step (C) of forming a non-softening part 41 that is not softened at the heating temperature of step (D), at least on the inner wall surface 31W of the interior 31 of the through hole 30, between the step (B) and step (D).SELECTED DRAWING: Figure 1C |
