| 摘要 |
PROBLEM TO BE SOLVED: To stably mold a molded product of high precision at a low cost even if the molded product has a thick wall or a non-uniform wall thickness shape. SOLUTION: When a molten resin injected in the cavity 7 formed by cavity pieces 2-4 to fill the cavity is cooled to the softening temperature of the resin, a gap is formed to the surface other than the transfer surface of the resin in the cavity to be cooled and the cooling speed of the gap 16 is made equal to that of other cavity surface to prevent the deformation of the molded product caused by the temperature distribution difference generated in the molded product.
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