| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent warping and deforming due to shrinkage difference from occurring in the molding of a resin component of which the difference in wall thicknesses is large. <P>SOLUTION: In this resin molded article having a thick-walled part 1 and a thin-walled part 2, the part 1 is formed of an expanded body. The molding of the resin molded article is performed by a method wherein after a resin material is impregnated with an inert gas in advance, the resin material is injected in a die by a filling time of 1 second or lower, and after the resin is hardened by making it expand in the die, the resin is taken out from the die. In this case, the die has a temperature being lower than a thermal deformation temperature of the resin material before the impregnation with the inert gas by 5°C to 25°C. <P>COPYRIGHT: (C)2004,JPO</p> |
