| 摘要 |
PURPOSE:To set up simply the final forming pressure by removing the high viscous substance inside a flexible sheet sealing cavity by the press of a punch together with the residual air and by performing the fine adjustment of the inner pressure at the lower dead point in the drawing formation by a high viscosity substance charging die and punch. CONSTITUTION:The cavity 2 having the high viscous substance 9 of two liquid type silicone and vinyl chloride sealant, etc. having the dilatancy of a die 1 is fixed by a double urethane sheet together with a space part S and sealed by a die face plate 11. The die 1 is fitted to a movable die base 14 and pressed to a punch 15 with the descent of the base 14. The air of the space part S and excess high viscous substance 9 are removed from the valve 7, also the inner pressure 5 is set to the prescribed final forming pressure by the advance and retreat of a fine adjustment rod 6 at the lower dead point. The pressure setting can be made simply and the quantity of the necessary high viscous substance 9 is minimized. The air of the space part S may remain more or less. |
