| 摘要 |
PURPOSE:To eliminate the air remaining in a cavity in the case of completing pouring of resin. CONSTITUTION:A mold 7 has a structure which has a resin reservoir 6 formed continuously to a cavity 4 and a gate between the cavity 4 and the reservoir 6 is openable by a vertically moving gate switching pin 5. At the time of pouring resin, the resin is poured until the air at the end of the resin in the cavity 4 is all discharged into the reservoir 6, the pin 5 is then moved to shut OFF the gate to the reservoir 6. Further, it is pressurized until an injection pressure completely reaches a resin pressure, thereby reducing a void malfunction. |
