| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a molding which favorably copes with a trade-off problem between the improvement of the fluidity of a molten-resin raw material and the reduction of a molding cycle. <P>SOLUTION: The method of manufacturing a resin molding by injection molding includes a process (i) of fitting a mold A and a mold B mutually on a mold closing to form a mold cavity space and a process (ii) of feeding a resin raw material to the mold cavity space. At fitting the molds A and B in the process (i), the air in the closed space formed by the fitting is compressed as the mold clamping proceeds so as to raise temperatures of surfaces of the molds forming the mold cavity. <P>COPYRIGHT: (C)2012,JPO&INPIT |
