| 摘要 |
The invention relates to a device comprising a furnace (10) which is provided with heating means that can be used to turn the material to be crystallised into liquid and, subsequently, to cool said material until it progressively solidifies. The inventive device also comprises means for receiving (20) the material (21), said means being disposed in the furnace, fixed in relation to said furnace and positioned such that the material is located in the intermediary zone. The heating means (11, 12, 13) supply three heating zones: a hot zone (16), an intermediary zone (15) and a cold zone (14). Thermally conductive means (17) are disposed between the receiving means (20) and the heating means (11, 12, 13) and said thermally conductive means extend from the cold zone to the hot zone. |
