A Digital decorating machine for ceramic products, including a conveyor, suitable to transport the products to be decorated (P) along a feed direction (A), and a plurality of decoration modules, positioned over the conveyor and adjacent to each other along the feed direction (A). The modules include respective printing heads provided with nozzles for ejecting a fluid to be delivered on the surface of the products to be decorated (P); the conveyor includes a movable member for supporting the products to be decorated (P), suitable for translating them along the feed direction (A). The conveyor includes at least a supporting surface, located along a respective flank of the movable member, including in turn a plurality of predetermined positioning zones for the removable engagement of respective coupling portions of the decoration modules.

The invention relates to a method for producing three-dimensional molded parts in two method steps and infiltrating the molded part, as well as a material system.

Method and system for decorating a base ceramic article (CB) having a surface to be decorated. The decoration system comprises: a first printing assembly for applying a first layer of adhesive material on at least part of the surface; a digital depositing assembly for depositing a second layer comprising granular material or enamel atomized particles on the first layer to form an at least partially relief pattern on the surface; a detection assembly of such at least partially relief pattern; a second printing assembly, operable based on the data detected by the detection assembly, to form a defined image on the at least partially relief pattern; a dryer configured to dry the base ceramic article (CB) and arranged between the digital depositing assembly and the second printing assembly; and a firing kiln.

The present invention relates to a 3D printer for construction for printing and forming various structures, in which a spray pipe follows a nozzle for discharging concrete or mortar, and sprays a liquid material onto the surface of a printed object, thereby enabling the liquid material to be applied on the surface of the printed object. Through the present invention, the printing of the printed object and the spraying of the liquid material onto the surface of the printed object may be carried out simultaneously by means of the 3D printer for construction, and thus a rapid and uniform coating treatment of the printed object is possible, and an adequate wet state of the tissue of the printed object may be maintained.

CLEAN COPY OF THE ABSTRACT

A method to control a closed robotised system comprises a learning step and a reproduction step, wherein, during the learning step, an operator exerts a force and/or a torque (Fc) on a driving assembly, whose sensor detects an applied force and/or torque (Fext); and wherein a processing system carries out an admittance control obtaining, depending on the data detected by the sensor, indications (Xref, X*ref) of movement for the robot manipulator in the Cartesian space; the processing system, following the admittance control, delivers the indications (Xref, X*ref) of movement in the Cartesian space to a trajectory interpolation unit of the robotised system so as to generate a desired trajectory through interpolation.

A digital decorator machine for the decoration of products (P), including a support frame, at least one conveyor, for transporting the products (P) to be decorated along an advancement direction, at least one decoration element, associated with said support frame and positioned above said conveyor, said at least one decoration element including respective print heads provided with ejector nozzles for a fluid to be dispensed on the surface of the products (P) to be decorated, and a casing within which at least one support is housed that is integral with said heads. The support is movable, with respect to said casing, between an upper inactive position and a lower operating position, in which said heads are correctly spaced with respect to the surface of the products to be decorated (P).

Embodiments of the invention combine pigmented and soluble salt digital ink technologies by dispersing water-soluble metal salts as particles in a non-aqueous inkjet ink fluid. The metal salts are dispersed as pigment-like particles, and not as a dissolved solute.

Cooling passages (99, 105) are formed in components for combustion turbine engines, such as blades (92), vanes (104, 106), ring segments (110) or castings in transitions (85), during investment casting, through use of ceramic shell inserts (130) within the casting mold (152). Ceramic posts (134) formed in the ceramic shell insert (130) have profiles conforming to corresponding profiles of partially completed cooling passages (156). Posts (134) are removed after superalloy component casting, forming the partially completed cooling passages, which are subsequently completed by removing remaining superalloy material along the cooling passage path.

A method for manufacturing a concrete article is disclosed. The method comprises coating a mould or formwork with a release agent; spraying a mortar onto the mould or formwork, thereby forming a layer of mortar; casting concrete into the mould or formwork and onto the layer of mortar; and allowing the concrete to hydrate and harden in the mould or formwork, whereby a concrete article having a mortar skin layer is provided. The invention also provides concrete articles made by the described methods, and concrete structures which comprise the concrete articles. Concrete articles having the mortar skins can be made to have a relatively uniform outward appearance, even if the concrete cast behind the mortar skins may be different, in composition or appearance. Pigments or colorants and other expensive admixtures can be used in the mortar skin composition to greater visual effect, since the use of the mortar skin is less in overall volume compared to the concrete articles as a whole.

A process for the production of slabs made of mineral grits bound with resins comprises at least the phases of supplying one basic mixture including mineral grits and resins; dispensing the basic mixture over a molding support so as to obtain a slab to be compacted provided with an exposed surface facing upwards and a laying surface facing downwards; compacting the slab to be compacted to obtain a compacted slab; and hardening the compacted slab to obtain a slab made of mineral grits; at least one decoration with ink by digital printing of at least the basic mixture carried out prior to the compaction, wherein the decoration phase includes at least one phase of pre-decoration by digital printing which is carried out prior to the dispensing and at least one phase of post-decoration by digital printing which is carried out after the dispensing.