| 摘要 |
PURPOSE:To provide the manufacturing method of synthetic resin hollow structure, which develops no poor molding and makes the shortening of molding cycle possible by preventing the permeation of resin from retarding, by a method wherein the temperature of even the hollow part forming portion of a mold is made to be controllable. CONSTITUTION:In a mold 10, cores 25, 26 and 28, (hollow bodies), which make the internal circulation of temperature controlling liquid possible as core material, are arranged so as to control the temperature of the cores 25, 26 and 28 by circulating the temperature controlling liquid under pressure in order to mold a synthetic resin hollow structure by pouring synthetic resin. |
