A method of forming a bladder cast ceramic matrix composite (CMC) article including infiltrating a CMC substrate positioned in a cavity of a mold body with a slurry. The CMC substrate includes reinforcement material defining inner spaces. The slurry includes solid particles and a carrier material. During infiltration, the slurry at least partially fills at least a portion of the inner spaces of the CMC substrate. The method also includes inflating at least one bladder that is coupled to the mold body and disposed within the cavity such that a surface of the at least one bladder in an inflated configuration contacts at least one surface of the CMC substrate. The method also includes drying the slurry to remove at least a portion of the carrier material form an infiltrated CMC and deflating the at least one bladder.

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 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 mold for building coating products obtained from composite liquid mixtures is described. The mold includes a base plate, having a plurality of through holes; and a die, configured for incorporating the base plate therein. On the upper surface of the die there are a plurality of shapes of the front surface in negative of each coating product to be manufactured and a molding grid open at the upper part, configured to be pressure applied above the die. The molding grid has side walls which define the perimeter edges of each coating product. Between the molding grid side walls separate bowls are formed for containing a single coating product. Each side wall is inclined at an acute angle with respect to a vertical plane, to confer to each side wall a sharp-pointed and tapered shape from top towards bottom with respect to the entire mold for facilitating the extraction of the finished coating products.

A system and method for manufacturing a set of cast stones includes a set of spray stations, a set of fill stations, a set of vibration tables, a drying rack, and a demolder connected to the drying rack. A controller is connected to each of the set of spray stations, the set of fill stations, the set of vibration tables, the drying rack, and the demolder, each of which has a set of sensors connected to the controller. The set of spray stations include a set of release stations and a set of color stations. A mold is sprayed with a release product, a set of colors, and then filled with a cementitious material. Once vibrated, the cementitious material is dried to form the set of cast stones, which is then automatically released from the mold utilizing the demolder.

An atypical-molded-body manufacturing device according to the present invention comprises at least one shape output unit comprising a plurality of movable rods provided to be able to move up and down and arranged along a first direction. A driving module transfers a driving force to the movable rods, thereby moving each of the plurality of movable rods to a predetermined height. An atypical curvature is formed by a difference in level configured by the upper end of each of the plurality of movable rods that have moved to the predetermined height.

An atypical-molded-body manufacturing device according to the present invention comprises at least one shape output unit comprising a plurality of movable rods provided to be able to move up and down and arranged along a first direction. A driving module transfers a driving force to the movable rods, thereby moving each of the plurality of movable rods to a predetermined height. An atypical curvature is formed by a difference in level configured by the upper end of each of the plurality of movable rods that have moved to the predetermined height.

A simulated stone or brick column or retaining wall is made up of rows of masonry blocks of generally trapezoidal configuration arranged in end-to-end relation to one another in each row, each block including a recessed portion being aligned with one another in each row and each block having textured wall surfaces simulating the appearance of brick or stone along one or more wall surfaces arranged in different configurations without the necessity of interlocking the blocks together.

A method of forming simulated stone or brick column or a retaining wall is made up of rows of masonry blocks of generally trapezoidal configuration arranged in end-to-end relation to one another in each row, each block including a recessed portion being aligned with one another in each row and each block having textured wall surfaces simulating the appearance of brick or stone along one or more wall surfaces arranged in different configurations without the necessity of interlocking the blocks together.

A forming system and methods that can more efficiently, safely, and economically produce pre-cast modular blocks having desired shapes and surfaces, such as those having reverse tapered shapes. The forming system and methods disclosed herein allow for quick, easy, and efficient demolding and reinstalling of inserts for the production of reverse tapered pre-cast modular blocks.