| 摘要 |
PURPOSE:To contrive not to make shrinkage or cracks, keeping the pack pressure constant after fill time in a fixed value by pressurizing the inside of a receiving vessel to a specified pressure of fill time in which is foaming mold is filled with a foam. CONSTITUTION:The foaming mold 1 into which foam stock solution 5' has been injected, is received in a receiving vessel 10. Then, the foam 5 molded by foaming progress of the foam stock solution 5' in the foaming mold 1 fills the inside of the foaming mold 1. When this fill time is detecting and the pressure control valve 13 is controlled, the pressure in the receiving vessel 10 is pressurized to a pressure a little higher than the foaming pressure P of the foam, whereby the outside overflow of the foam 5 charged in the foaming mold 1, through the vent hole 2 of a cover 3, may be prevented, and simultaneously a specified pack pressure is obtained. Consequently, the strength of the foaming mold 1 itself is sufficient, if it controls the molding of the foam 5, and also the deformation at foaming is reduced.
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