| 摘要 |
PURPOSE:To obtain a foam having uniform density and a uniform thickness, by sending a foamable material held between belts into a pressure container having a molten pressure medium confined therein and heating said material under heating to again continuously draw out the same from the pressure container. CONSTITUTION:A molten liquid pressure medium is received in the heating part at the central part of a pressure container 103 and a foamable material 105 is held between sheet-like articles forming a pair of endless belts each consisting of a metal plate or a plastic film moves through the molten liquid pressure medium from the inlet of the pressure container 103 to the outlet thereof. The molten liquid pressure medium is injected in the container 103 from a pressurizing mechanism 106 for said pressure medium to apply pressure to the pressure medium and the foamable material 105 is heated and pressurized while moving through the pressure medium to become a foamed body. The molten liquid pressure medium is cooled and solidified in the cooling parts 107, 108 at the inlet and outlet of the pressure container to perform self-sealing. The foamable material held between the sheet like articles is moved through the cooling parts 107, 108 at the inlet and outlet in contacted with the solidified pressure medium. |
