| 摘要 |
<p>During the manufacture of slabs of granulated stone material and/or sands bound with a resin which can be hardened, preferably hot, and with the aid of a catalyst, in which a mixture (26) of granulated material and/or sand and resin is deposited as a layer (30) of uniform thickness and predetermined outline on a support (10) protected beforehand by a sheet material (20), and the layer in question, which is also protected on its upper surface with a similar sheet material (32), is subjected to vibratory compaction under vacuum and to a hot hardening process in the presence of the catalyst, sheets of resilient material (20,32), particularly of natural or synthetic rubber, preferably neoprene, are used as the protective sheets and, after the hardening, are removed, preferably pulled, from the covered and protected surfaces of the resulting slab. <IMAGE></p> |
