A composite substrate includes a supporting substrate and a functional substrate that are directly joined together, the supporting substrate being a sintered sialon body.

A new process for creating a decorative surface on a cast concrete tile. A mold is prepared by coating with mold release. An aggregate of water, coloring dye, sand, Portland cement, and preferably filler material such as pea gravel is pre-mixed. Baking soda is mixed with a significant volume of water to create a high-viscosity paste. The paste preferably has a high solid to liquid ratio so that it can be crumbled into baking soda clumps of various sizes. The dampened baking soda clumps are sprinkled randomly onto the bottom surface of the mold (which will bear against what becomes the top surface of the cast tile). The pre-mixed aggregate is then added to the mold. Once the aggregate is cured, the cast concrete tile is removed. The baking soda clumps create complex voids in the tile's upper surface, producing a surface texture similar to limestone.

A method of forming a cast component and a method of forming a casting mold is provided. The method is performed by connecting at least one wax gate component to a ceramic core-shell mold. The ceramic core-shell mold includes at least a filter, a first core portion, a first shell portion, and at least one first cavity between the core portion and the first shell portion. The ceramic core-shell mold may be manufactured using an additive manufacturing process and may include an integrated ceramic filter. At least a portion of the ceramic core-shell mold and the wax gate component is coated with a second ceramic material. The wax gate component is then removed to form a second cavity in fluid communication with the first cavity.

A leachable casting core and method of manufacture may include a plurality of legs configured to establish a plurality of internal flow channels of a cast component. Tie bars, with a first tie bar end and a second tie bar end opposite thereof, may couple to at least two of the plurality of legs. At least one of the tie bars may be oriented to form a linking cavity within the cast component between the internal flow channels. The linking cavity may serve as an obstruction to fluid communication through the linking cavity.

Moulding tray (1) for manufacturing slabs of agglomerate material from a mix, comprising a base portion (2) and a rim portion (4) designed to define a cavity (6) for containing the mix. The rim portion (4) is made of elastomeric material and the base portion (2) comprises at least one surface layer (8A) made of elastomeric material and at least one fabric layer (10A). The elastomeric material of the rim portion (4) and the elastomeric material of the at least one layer (8A) of the base portion (2) comprise a filler containing silicon (Si), preferably silica. The invention also relates to a method for realizing the moulding tray (1) and a method for manufacturing slabs of agglomerate material which uses such a moulding tray (1).

A method of fabricating a composite material part includes injecting under pressure a slurry containing a powder of refractory ceramic particles into a fiber texture; and draining the liquid of the slurry that has passed through the fiber texture, while retaining the powder of refractory ceramic particles within the texture to obtain a fiber preform filled with refractory ceramic particles. The injection tooling includes a porous material mold including an internal housing in which the fiber texture is placed, the slurry being injected into the fiber texture via an injection port in the injection tooling and leading into the internal housing of the mold. The tooling includes a rigid material enclosure in which the porous material mold is held while the slurry is injected under pressure and while the liquid of the slurry is drained, the liquid of the slurry being discharged via a vent present in the enclosure.

The invention relates to a casting mold, in particular for use in cold casting methods, which is produced with the aid of a powder-based layering method, the final casting mold having a treated surface.

A method of producing a cylindrical insulator for a spark plug includes a molding step of forming ceramic powder filled in a cavity defined by a mold and a molding pin into a compact. In a first removal step of removing the compact from the mold, the compact has at least one protrusion formed in at least one recess of the molding pin formed in an outer cylindrical surface of the molding pin, and the at least one protrusion is locked in the at least one recess, thereby allowing the compact to be removed with the molding pin from the mold. In a second removal step of removing the molding pin from the compact, the molding pin is turned or rotated in the circumferential direction about the compact, causing the at least one recess to cut the at least one protrusion from the compact, and thereafter the molding pin is removed from the compact.

A system for producing a core including a core profile for use in casting. The system comprises a cavity block including an upper portion, a lower portion, and a recessed cavity in each of the upper portion and the lower portion; an adapter insert including a first portion and a second portion, the adapter insert sized to fit within the recessed cavity in each of the upper portion and the lower portion of the cavity block; and a core die insert sized to fit and be positioned within the adapter insert. The core die insert includes a sacrificial material and a hollow internal profile, with the hollow profile of the core die insert corresponding to the core profile.

A system for producing a core including a core profile for use in casting. The system comprises a cavity block including an upper portion, a lower portion, and a recessed cavity in each of the upper portion and the lower portion; an adapter insert including a first portion and a second portion, the adapter insert sized to fit within the recessed cavity in each of the upper portion and the lower portion of the cavity block; and a core die insert sized to fit and be positioned within the adapter insert. The core die insert includes a sacrificial material and a hollow internal profile, with the hollow profile of the core die insert corresponding to the core profile.