A pressing device, comprising: a lower punch (10), provided with a pressing surface (10a) facing upwards; an upper punch (11), provided with a pressing surface (11a), facing downwards; at least one of the two punches is movable nearingly and distancingly relative to the other in order to perform pressing of a layer (L) of a ceramic material; a first movable belt (2) comprising an active portion (3) arranged at least partially between the upper punch (11) and the lower punch (10); a second movable belt (4) comprising an active portion (5) arranged at least partially between the first movable belt (2) and the upper punch (13); a shaped profile (6), which is so structured as to at least partially delimit a pressing chamber, which is detachably associated to the lower punch (10) or to the upper punch (11) in a projecting manner.

A format compensator for a pressing device, comprising a compensating element (7) of a given thickness (S), structured so as to be interposed between the lower punch and the upper punch (10, 11) of a pressing device so as to be arranged in contact with the punches (10, 11) during pressing.

A building material manufacturing apparatus includes a sieve portion 10 and a receiver 30 that receives a building raw material M that has passed through the meshes of the sieve portion 10. The sieve portion 10 includes a series of sheets that are each capable of performing a wave motion when the apparatus is operating, that have an inclination, and that are arranged in a direction of the inclination. The series of sheets include a sieve sheet 12 and a sieve sheet 13 positioned below the sieve sheet 12. In the sieve sheet 12, meshes having an identical size are arranged at a regular pitch in a sheet width direction W. In the sieve sheet 13, meshes having two or more different sizes are arranged or a mesh region R1 and a non-mesh region R2 are arranged, in the sheet width direction W. The receiver 30 is movable below the series of sheets. The building material manufacturing method includes, by using the apparatus, forming a mat on the receiver 30, the mat including a first layer formed from a part of the building raw material M that has passed through the meshes of the sieve sheet 12 and a second layer formed from a part of the building raw material M that has passed through the meshes of the sieve sheet 13.

A method for continuously forming gypsum-based panels of high fixing strength comprises the steps of: forming a mixture comprising stucco, non-pregelatinized migratory starch, glass fibre, fluidizer and water; casting the mixture in a continuous band; maintaining the band under conditions sufficient for the stucco to form an interlocking matrix of set gypsum; cutting the band to form one or more wet panel precursors; and drying the wet panel precursor to form one or more gypsum-based panels. The weight ratio of water to stucco in the mixture is less than 0.7; the stucco is present in the mixture in an amount of over 60 wt % relative to the total solids content of the mixture; the starch is present in the mixture in an amount of over 3 wt % relative to the the stucco; the glass fibre is present in the mixture in an amount of over 1 wt % relative to the stucco; the fluidizer is is present in the mixture in an amount of at least 0.1 wt % relative to the stucco; and the density of the gypsum-based panel is greater than 700 kg/m.

The present disclosure embraces cementitious panels, and systems and methods of manufacturing cementitious panels. An exemplary cementitious panel includes a cementitious core material, a plurality of sheets of facing material surrounding the cementitious core material, and a radiation-cured adhesive. An exemplary method of manufacturing a cementitious panel includes conveying a slurry of cementitious core material and a plurality of sheets of facing material, applying a radiation-curable adhesive to at least one of the sheets of facing material, forming a continuous length of cementitious panel material, at least partly curing the radiation-curable adhesive with one or more beams of radiation emitting from one or more radiation-emitting devices, and cutting the continuous length of cementitious panel material laterally to a desired length, providing a cementitious panel.

The invention relates to a conveyor line (1) for the continuous production of drywall boards as well as a slurry distributing device (22) which is used in this conveyor line (1). The distributing device is used for the uniform and low-speed flow distribution of slurries (20).

A molded article having a small difference in thermal conductivities between a central section and a section located at an outer peripheral surface side; and a method for producing the same; wherein, a plate-shaped molded article includes an aluminum-silicon carbide composited section in which a metal including aluminum was impregnated into a silicon carbide porous body, wherein a difference in the densities, by Archimedes' principle, of a central section of the aluminum-silicon carbide composited section and of at least a portion of an outer side section located further toward the outside peripheral surface side than the central section is 3% or less.

A feeding device for a press comprising: a first belt (2), movable in advancement along a conveying direction (X) and passing through a press (11, 12); depositing means (3), predisposed for spreading in a layer an amount (L) of loose material (L) on a movable plane. The device comprises a second belt (4), on which the depositing means (3) operate, located upstream of the first belt (2), which is movable along the conveying direction (X) and is substantially aligned and contiguous to the first belt (2). The first belt (2) and second belt (4) are movable independently of one another.

A system for the automatic release of cast concrete products from flexible and deformable moulds is described. The system has an apparatus configured to supply the moulds and carry out the pre-mould-release of the products contained within such moulds. The apparatus has a first conveyor belt associated with a first pre-mould-release group and a second conveyor belt associated with a second pre-mould-release group. The second conveyor belt is placed downstream of the first conveyor belt and both pre-mould-release groups are configured to facilitate the subsequent mould-release of the products. The system further has a mould-release machine arranged downstream with respect to the first and second conveyor belts. The mould-release machine has a mould-release group, configured to carry out the extraction of the products from the respective moulds, and a plurality of conveyor belts, configured to move the moulds and the products inside the mould-release machine.

A system for the automatic release of cast concrete products from flexible and deformable moulds is described. The system has an apparatus configured to supply the moulds and carry out the pre-mould-release of the products contained within such moulds. The apparatus has a first conveyor belt associated with a first pre-mould-release group and a second conveyor belt associated with a second pre-mould-release group. The second conveyor belt is placed downstream of the first conveyor belt and both pre-mould-release groups are configured to facilitate the subsequent mould-release of the products. The system further has a mould-release machine arranged downstream with respect to the first and second conveyor belts. The mould-release machine has a mould-release group, configured to carry out the extraction of the products from the respective moulds, and a plurality of conveyor belts, configured to move the moulds and the products inside the mould-release machine.