| 摘要 |
A roller 100 for forming heat transfer elements 400 may include a central shaft 110 and a plurality of roller elements 120. The plurality of roller elements 120 may be stacked on the central shaft 110. Each roller element 120 defines an outer periphery 122, which is configured to include a geometrical characteristic 130 thereacross. The stacked roller elements 120, either stacked on the central shaft 110 or stacked without using the central shaft 110, configures the roller 100 with a circumferential surface 150 corresponding to the geometrical characteristic 130 of the stacked roller elements 120, to form the heat transfer elements 400 corresponding to the circumferential surface 150. |
