| 摘要 |
PROBLEM TO BE SOLVED: To obtain a thin-walled plate-shaped product comprising a thermosetting resin of high accuracy excellent in flatness by a simple means. SOLUTION: In a mold for molding a thermosetting resin wherein an ejection pin 2 or an ejector is provided to the bottom surface of a cavity 1, the flat molding plate 4 covering the entire bottom surface of the cavity 1 is prepared to be received in the cavity 1 in a freely detachable manner and a thermosetting resin material is charged in the cavity 1 to be pressed and molded. |
