| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding method of an interior material for a vehicle wherein cells of a PP base material in a melted and foamed state at the time of press molding ate not crushed, a sharp R-shaped molding can be done at a deep-draw part of the PP base material, a thickness of an interior base material is not thinned, and strength is improved. SOLUTION: A PP base material 12 and a skin material 13 are integrally molded by press molding by a press molding die 21 in a state that the PP base material 12 is heated to a molding temperature. Next, the inside of the press molding die 21 is made to be vacuum and cells in the PP base material 12 are expanded. The expansion of the cells of the PP base material 12 by the vacuum drawing is performed after the elapse of 5-30sec. after the integral press molding by the press molding die 21. |
