Method and apparatus for manufacturing slabs with veined effect

Details Method and apparatus for manufacturing slabs with veined effect Method and apparatus for manufacturing slabs with veined effect

B - Operations, Transporting

28

B

B28B 13/02 (2006.01) B28B 1/08 (2006.01) B29C 67/24 (2006.01)

Patent

CA 2693143

During the manufacture of slabs with a veined effect a liquid or powder colouring agent is deposited on the surface of a thin layer of starting mixture by means of at least one dispensing device (40) and the resultant mixture is supplied, falling freely, from one end of an extractor belt (30) forming the bottom of a mixture metering/distributor unit, following which the mixture is transferred, falling freely, onto a temporary moulding support (14). This results in the production of slabs provided with veining extending through the entire thickness of the slabs and also visible along the whole edge of the slab, even after it has been machined.

Pendant la fabrication de dalles avec un effet marbré, un agent de coloration liquide ou en poudre est déposé sur la surface d'une mince couche de mélange de départ au moyen d'au moins un dispositif de distribution, et le mélange résultant est alimenté, en tombant librement, à partir d'une extrémité d'une courroie d'extracteur formant la partie inférieure d'une unité de mesure/distribution de mélange, après quoi le mélange est transféré, en tombant librement, sur un support de moulage temporaire. Ceci conduit à la production de dalles comportant un marbrage s'étendant à travers toute l'épaisseur des dalles et également visible le long de toute la bordure de la dalle, même après qu'elle ait été usinée.

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