| 摘要 |
PURPOSE:To provide a method capable of preventing solidification of resin even at the time of molding of an FRP large-sized matter, that is, molding of a thick-and long-sized matter requiring a long time and a device enabling this method. CONSTITUTION:A mandrel 2 supported by a shaft 4 is made into a double pipe structure of an outer pipe 2a and an inner pipe 2b, a hollow part of a double pipe is connected with a carrying pump 9 through a shaft hole 4a provided into the shaft 4 and piping 10 connected with the shaft hole 4a and a cooling medium 5 is made circulatable by the carrying pump 9. Then a fin is provided within the double pipe constituted of the mandrel on a radial direction, through which the cooling efficiency has been improved. |
