| 摘要 |
The process of making a mixture for the manufacture of surface covering or forming products, and a mixture obtained from this process comprises the steps of: making a mixture of granules and powders of inorganic inert materials including an amount of thermosetting resin powder, of colored or transparent type, possibly modified with a thermoplastic resin powder; moistening said mixture with water or an aqueous suspension of thermoplastic resin, if required, or with other evaporable non-fouling liquids; uniformly flush-filling a forming drawer of a ceramic press with said mixture; exerting a compaction force with a cold pressing plate; removing the compacted mixture by an ejector means; exposing said compacted mixture to gradual heating at ambient pressure, in a horizontal or vertical kiln, to the melting and curing temperatures of the resin matrix; maintaining said temperature for a curing time; gradually cooling said mixture with the cured resin matrix; removing the conglomerate stone product. |
