| 摘要 |
Disclosed herein is a method for continuously producing an expansion-molded article, comprising feeding foamed particles between a belt continuously traveling along the upper surface within a passageway defined by structural members and having a rectangular form in section and a belt continuously traveling along the lower surface within the passageway, and then causing the foamed particles to successively pass through a super heated steam-feeding region and a cooling region within the passageway. The foamed particles used are foamed particles of a polyolefin resin, in which a recovery factor from compression defined by the equation (1): Recovery factor from compression (%)=V2/V1x100(1) wherein V1 is the original bulk volume of the foamed particles, and V2 is a bulk volume of the foamed particles measured upon elapsed time of 10 seconds after the foamed particles are compressed to a bulk volume of 60% on the original bulk volume, and the compressive force is then removed, is at least 80%. The foamed particles are transferred to the super heated steam-feeding region after the foamed particles are compressed on the upstream side of the super heated steam-feeding region, and then released from a part or the whole of the compression. An apparatus for producing the expansion-molded article is also disclosed.
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