| 摘要 |
PURPOSE:To make it possible to repeatedly use a gasket and to obtain a molded article faithful to the surface state of a mold, by moving each heat exchanger by transmitting the thickness change based on the volumetric change of cell content to the same through a compression spring. CONSTITUTION:The volume of the content in each cell 6 changes according to the advance of polymerization reaction but pressing force generated by the reduction in the interval of heat exchangers 1 at both ends is transmitted by each compression spring 10 and each heat exchanger 1 small enough in moving resistance is easily moved by the pressing force of the compression spring 10 and intervals between the cells 6 are equally reduced. Because the reduced portion of the interval between the heat exchangers at both ends corresponds only to the sum total of the thickness reduced portion caused by the volumetric reduction of the content in each cell 6, a gap and pressing force are not generated at all between the content and the heat exchange surface 1a in each cell 6. Therefore, a molded article becomes faithful to the surface state of a mold, that is, the heat exchange surface 1a.
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