Machine and method for compacting ceramic powder (CP); a layer of non-compacted ceramic powder (CP) is conveyed in a feed direction (A) through a compacting device (2); downstream of the compacting device (2) there is positioned a detection device (8) which detects the density of the layer of compacted ceramic powder (KP); the quantity of ceramic powder (CP) fed to the compacting device (2) is varied in time as a function of what is detected by the detection device (8) to thus regulate the density of the layer of compacted ceramic powder (KP).

The present invention is directed to a fiber cement felt comprising repeat units, each of which includes top, middle, and bottom machine direction yarns and cross-machine direction yarns interwoven with the top, middle, and bottom machine direction yarns in a predetermined weave pattern. The top, middle, and bottom machine direction yarns may comprise effect yarns and linear yarns without the need for a batt layer.

A method and a plant (i.e., system or assembly) for manufacturing ceramic products comprising the steps of feeding a mixture of ceramic powders so as to obtain a powder material strip; compacting the powder material strip so as to obtain a compacted powder layer; acquiring a surface image of the compacted powder layer that reproduces the respective surface chromatic effects; processing said surface image so as to obtain a graphic decoration to be applied on the surface of the compacted powder layer that is coordinated with the respective chromatic effects in the thickness; and printing the graphic decoration on the surface of the compacted powder layer.

A device (1) for producing a slab (9) from artificial stone material by means of a double-belt press having a lower belt (2) and an upper belt (3), the double-belt press comprising a charging device (4) for loading a starting material for producing the slab (9) onto the lower belt (2), and the charging device (4) comprising at least one drum (5, 6) that is rotatable about its longitudinal axis (a1, a2).

A multi-zone cementitious product, which includes a base zone made of a first cementitious material composition and forming a portion of the product. At least one facing zone is adjacent to and bonded to the base zone, the facing zone made of a second cementitious material composition and forming at least one exterior face of said product which is visible when the product is installed. A disrupted boundary layer is between the facing zone and the base zone, and includes material from both the facing zone and the base zone. The disrupted boundary layer bonds the facing zone to the base zone. The facing zone has a thickness sufficient to prevent the base zone from being visible when the product is installed.

A machine and method for compacting a powder material; the machine comprises a compacting device, which is adapted to compact the powder material; a conveyor assembly to convey a layer of powder material, along a portion of a given path, to the compacting device; and an adjusting assembly, which is adapted to change the width of the layer of powder material along the portion of the given path and consequently the thickness of the layer of powder material at its longitudinal edges.

A method for producing engineered stone slabs which includes: compressing composite material to form compressed composite material; fragmenting the compressed composite material into a plurality of fragments of composite material; depositing colorant in a predefined region onto at least part of side walls of some of the plurality of fragments of composite material; and using a device to press, flatten and stretch the plurality of fragments of composite material into a slab. The method may further include moving one or more of the plurality of fragments without substantially breaking or deforming them to form a channel in the plurality of fragments prior to depositing colorant in the predefined region. The device may include a first press roller and a second press roller; wherein the plurality of fragments pass between the first and second press rollers to press, flatten and stretch the plurality of fragments of composite material into the slab.

The present invention relates to a continuous manufacturing method for a vacuum insulation material, including: a first step of putting a porous insulation material into an inner envelope having permeability, three sides thereof being closed and one side thereof being open, and then sealing the inner envelope; a second step of flattening an upper broad side of the inner envelope; a third step of compressing the inner envelope flattened in the second step; a fourth step of sealing all sides of the inner envelope compressed in the third step, except for one side, with an outer envelope having a shielding property, and packaging the sealed inner envelope; and a fifth step of sealing the one side of the inner envelope not sealed in the third step by putting the inner envelope sealed in the fourth step into a vacuum chamber and performing a vacuum operation.

A method for manufacturing ceramic articles is described comprising a step of feeding, during which at least two different ceramic powders are fed so as to obtain a strip of ceramic powders having at least a first zone and at least a second zone having a given shape; a step of compacting, during which the strip of ceramic powders is compacted so as to obtain a compacted layer of ceramic powders, which is expanded relative to the strip of ceramic powders; a step of determination, during which expansion of the layer of powders is determined; and a step of printing, during which a decoration having a modified shape based on the given expansion is applied on the surface of the compacted layer of ceramic powders.

A method for compacting a ceramic composite material includes steps of: (1) positioning a roller in contact with a ply-surface of a ply of the ceramic composite material, wherein the ply is positioned on a compaction-surface; (2) applying a compaction pressure to the ply using the roller such that the contact pressure is substantially uniformly distributed on the ply; and (3) with the roller in contact with the ply-surface and applying the compaction pressure, moving the roller across the ply to conform the ply to the compaction-surface.