摘要 |
<p>PT--80860 A The method consists of depositing different material layers into the same mould in successive stages, each stage using a delivery device (t1, t2) and a compactor (C1 etc.). The successively deposited layers are then trimmed while in the open ended mould (M1 etc) by a cutter (3) in a final stage. - The number of stages corresponds to the number of layers incorporated in a tile, and the degree of compaction depends on the type of material deposited in the preceding stage. The moulds are advanced under the delivery, compacting and cutting devices by an endless conveyor. One of the layers can be pigmented and all the layers have different properties.</p> |