| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding method for reducing a steam amount used for raising the temperature of respective mold and frame at the moving side and the fixed side in foam molding in the mold of thermoplastic resin preliminary foaming particles in order to improve a steam consumption rate of molding cost. SOLUTION: A manufacturing method of the thermoplastic resin foam is characterized in that a molding device composed of a first mold and a second mold respectively having a back plate, a frame, a center plate and a mold piece keeps a mold space formed by the first mold and the second mold filled with thermoplastic resin preliminary foaming particles to thermally fuse the thermoplastic resin preliminary foaming particles by the steam. After the temperature of the mold piece is raised to 100°C or more, and a saturated steam temperature or less of fused steam pressure G-0.1 MPa of the resin, the thermoplastic resin preliminary foaming particles fill the mold space. COPYRIGHT: (C)2008,JPO&INPIT |
