Abstract: A device to form a honeycomb has an upper continuous belt and a lower continuous belt disposed in parallel and carrying opposing cores. The belts act on liquid wax which is injected into an inlet of the device, with both belts moving in opposition. The inlet has in succession: a scraping zone disposed straight with respect to the upper belt; a zone for opening the cores, which has a certain curvature designed to receive a first injection of wax; and a third straight zone for sealing and expelling any excess wax. At an exit of the device, the longest length of the upper belt has multiple groups of magnetic and non-magnetic rollers for a local curving of the belt to progressively release the honeycomb.

Abstract: The method comprises differentiated separation of the strips holding the silicone cores with respect to the honeycomb produced, by simply curving one of the strips corresponding to one of the faces of the honeycomb and by progressive action of pulsed magnetic fields in the other of the strips holding the silicone cores, progressively separating the honeycomb and preventing breakages in the walls of the same. In a device equipped with an alignment of electromagnets which act on the strip bearing the elastic cores to be separated and which exert an action of pulsed magnetic fields on the same, progressively separating the strip from the honeycomb.

Abstract: The method comprises differentiated separation of the strips holding the silicone cores with respect to the honeycomb produced, by simply curving one of the strips corresponding to one of the faces of the honeycomb and by progressive action of pulsed magnetic fields in the other of the strips holding the silicone cores, progressively separating the honeycomb and preventing breakages in the walls of the same. In a device equipped with an alignment of electromagnets which act on the strip bearing the elastic cores to be separated and which exert an action of pulsed magnetic fields on the same, progressively separating the strip from the honeycomb.

Abstract: The method comprises a first step of applying liquid wax to a mold formed by a plurality of projections conjugate with the cells of the honeycomb in a manner such that the filling of the spaces of the mold with molten wax is complemented by the formation of an upper plate interconnecting the various cells, then proceeding with the molding of the half honeycomb and subsequent cooling to enable the half honeycomb to be removed from the mold. The apparatus has two parallel, endless belts separated by a space slightly larger than the height of a half honeycomb and driven in a manner such that the adjacent passes have the same speed and direction of movement, a mold constituted by a plurality of rows of silicone projections of a shape conjugate with the cells being fitted on one of the belts.

Abstract: Molding both faces of a honeycomb simultaneously by the action of respective belts carrying cores having resilience properties and, after cooling of the honeycomb, subjecting it to compression on both faces to separate the cores from the walls of the cells. The apparatus comprises two endless belts which are arranged opposite one another and are mounted between respective pairs of guide drums and both of which are provided with resilient cores of a shape complementary to that of the cells to be produced, the last pair of drums being capable of exerting a compression force against both faces of the honeycomb produced in order to detach it from the cores.