B28B13/0205

SURFACE TREATMENT OF ADDITIVELY MANUFACTURED COMPONENTS
20200391292 · 2020-12-17 ·

A method may include depositing, from a slurry, suspension, or tape, on a surface of an additively manufactured component comprising a metal or alloy, powder comprising at least one of a metal, an alloy, or a ceramic; sintering the powder to form a surface layer on the additively manufactured component; and hot isostatic pressing the additively manufactured component and the surface layer.

Programmable station and plant for the production of plates with chromatic effects
10751911 · 2020-08-25 ·

Station for the realization of coloring effects in a mix for the production of slabs, includes: a working surface intended to accommodate a temporary support with a basic mix layer for the formation of a slab; at least one dye dispensing device for emitting dyes towards the working surface so as to deposit them on the basic mix layer on the temporary support accommodated on the working surface; movement means for the relative movement of the dispensing device above the working surface; a control system connected to the movement means for controlling the displacement of the dispensing device so as to follow trajectories along which dyes are emitted towards the mix layer; at least one tool movable with the movement means (18, 118) and intended to interact mechanically with areas of the mix layer for receipt of the dyes emitted by the dispensing device to achieve coloring effects in the mix.

METHOD FOR THE PRODUCTION OF PELLETS OF SINTERED MATERIAL, SUCH AS BORON CARBIDE PELLETS
20200115236 · 2020-04-16 ·

A method for producing pellets of sintered material, comprising: a) forming calibrated pre-compacts by first uniaxial pressing of equal portions powder at a first threshold below the maximum green density threshold of the powder; b) providing a pressing tool set comprising a die having a plurality of cavities and pressure pistons; c) placing the pre-compacts in the cavities with first and second sintered boron nitride disks, having a thickness in the millimetre range and a density >=90%; d) forming calibrated compacts by second uniaxial pressing of the pre-compacts using the pressure pistons at a second threshold greater than the first threshold, which is less than or equal to the maximum green density of the powder; e) forming sintered compacts by applying pressure and a pulsed current to the pressing tool set to bring about a rapid rise in temperature according to a temperature-, pressure- and duration-controlled SPS sintering cycle.

Process for rapid processing of SiC and graphitic matrix TRISO-bearing pebble fuels
11984232 · 2024-05-14 · ·

A method for producing microencapsulated fuel pebble fuel more rapidly and with a matrix that engenders added safety attributes. The method includes coating fuel particles with ceramic powder; placing the coated fuel particles in a first die; applying a first current and a first pressure to the first die so as to form a fuel pebble by direct current sintering. The method may further include removing the fuel pebble from the first die and placing the fuel pebble within a bed of non-fueled matrix ceramic in a second die; and applying a second current and a second pressure to the second die so as to form a composite fuel pebble.

Surface treatment of additively manufactured components

A method may include depositing, from a slurry, suspension, or tape, on a surface of an additively manufactured component comprising a metal or alloy, powder comprising at least one of a metal, an alloy, or a ceramic; sintering the powder to form a surface layer on the additively manufactured component; and hot isostatic pressing the additively manufactured component and the surface layer.

METHOD FOR PRODUCING A DIMENSIONALLY STABLE CONCRETE WORKPIECE AND DIMENSIONALLY STABLE CONCRETE WORKPIECE
20180126588 · 2018-05-10 · ·

The invention relates to a method for producing a dimensionally stable concrete workpiece characterised in that to produce the concrete workpiece a fully-sealed dimensionally stable form (20) is filled with fresh concrete in a predetermined geometry, during the subsequent and undisrupted hydratation a predetermined temperature distribution of the walls (21, 22) of the form (20) surrounding the hydrated concrete is carried out and the concrete workpiece is shaped at a compressive strength of more than 10 MPa. The maximum size of the fresh concrete has a diameter of less than 20% of the smallest measurement of the shape.