| 摘要 |
PROBLEM TO BE SOLVED: To obtain a method for molding a multilayered foamed body capable of integrally molding a high density foamed body and a low density foamed body while the boundary part of both foamed bodies can be clearly separated. SOLUTION: A multilayered foamed body molding apparatus is arranged with fillers for filling a low foaming magnification raw material bead and filling a high foaming magnification raw material bead at two or more different positions in a mold, and is arranged with a vacuum hose which sucks air in the mold by a vacuum pump to make a vacuum condition. In this molding apparatus, at first, after the high foaming magnification raw material bead with a specified amount is filled, a blow air is jetted from another filler positioned at an upper part at a moment, and at the same time when jetting is stopped, the air is sucked by the vacuum pump to make a vacuum condition. Then, after the high foaming magnification raw material bead is preliminarily fed so that it covers the upper face of the low foaming magnification raw material bead in some extent, the air is sucked again by the vacuum pump to make a vacuum condition. Thereafter, remaining high foaming magnification bead is furthermore filled, and respective raw material beads are mutually fused together by heating the mold to integrally mold them. COPYRIGHT: (C)2006,JPO&NCIPI |
