| 摘要 |
Mask sheets, a cleaning sheet and rubbery cleaning resin bars are disposed on a lower mold of a molding die and thereafter the molding die is clamped, allowing the interior of a cavity to be filled with cleaning resin to clean the molding die, whereby even portions into which resin is difficult to enter with only the injection pressure from pots can be filled with the cleaning resin. Consequently, cleaning of the molding die can be effected without being influenced by the resin injection pressure in transfer molding and it is possible to improve the cleanability of the molding die.
|
