| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a sorting method capable of sorting those foamed objects and materials that have specific gravities approximating one another. <P>SOLUTION: In the sorting method, two or more objects to be sorted are leveled in a single layer, and the objects to be sorted leveled in the single layer are heated or cooled, the surface temperatures of the objects to be sorted are measured; and the materials are sorted, respectively, based on the surface temperatures by utilizing the differences in their thermal properties, even if the objects are foam objects and materials that approximate each other in specific gravities. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
