摘要:
A method used for forming ceramic matrix composite components includes several steps. The method comprises arranging a layup of a predetermined number of pre-impregnated ceramic plies on a layup too and a plurality of different stages to debulk and consolidate the layup.
摘要:
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.
摘要:
An example plasterboard includes a layer of hardened plaster having a first surface and an opposed second surface, a layer of polymer material having particles of one or more cementitiously-active substances mixed therein, and a liner between the first surface of the layer of hardened plaster and the layer of polymer material. Another example is a method of forming such a plasterboard. The method includes loading an extruder with the polymer material having the particles of one or more cementitiously active substances mixed therein, extruding the polymer material through a die to form the layer of polymer material on a surface of the liner, contacting with a layer of wet plaster material, the liner having the polymer material applied thereon such that the surface of the liner faces away from the wet plaster material, and drying the layer of wet plaster material to form the layer of hardened plaster.
摘要:
A structural insulated panel includes a core of thermally insulating material having a first side and a second side opposite the first side, a first skin coupled to the first side of the core, and a second skin coupled to the second side of the core. The first skin, the second skin, or both the first and second skins may include a sheet of reinforced concrete material. Each sheet of reinforced concrete material may include calcium sulfoaluminate (CSA) cement and a reinforcing material disposed in at least a portion of the CSA cement.
摘要:
The formulation for making plasterboard with paper cover sheets comprises finely divided gypsum, a minor amount by weight of starch and, as crosslinking agent for the starch, a tri-functional reactive s-triazine having substituents at positions 2, 4 and 6 of the triazine ring which are reactive with the starch. A preferred crosslinking agent is 2,4,6-trichloro-s-triazine, which is preferably partially reacted with the starch before further reaction with the paper cover sheets for the plaster board.
摘要:
A second mold is placed on a planar surface of a first mold to form a first mold cavity, which is filled with a first material slurry containing a first material powder and the molded slurry is caused to set, thereby forming a first molded part on the planar surface of the first mold. A third mold is placed on the planar surface of the first mold from which the second mold is removed and on which the first molded part is formed, thereby forming a second mold cavity. The second mold cavity is filled with a second material slurry which contains a second material powder different from the first material powder so as to mold the slurry in contact with the first molded part. The molded slurry is caused to set, thereby forming a second molded part on the planar surface of the first mold.
摘要:
The present invention provides a ceramic green sheet with a thin flat plate shape obtained by molding and solidifying a ceramic slurry, which contains a ceramic powder, dispersion medium, and gelling agent, into a thin flat plate. The ceramic green sheet partially includes a body that is obtained by molding and solidifying a conductor paste, which becomes a conductor later, and the body is exposed on a part of each of the both surfaces of the sheet. Plural ceramic green sheets described above are produced. The plural ceramic green sheets are successively stacked and press-bonded in the thickness direction in such a manner that the bodies included in the respective sheets are connected to each other for all combinations of the adjacent two sheets. As a result, a ceramic green sheet laminate is formed, which includes one body that is obtained by connecting the bodies included in the respective sheets.
摘要:
A process for manufacturing plasterboard and a plasterboard manufacturing unit are provided, the process including feeding hydratable calcium sulphate and water into a first mixer (2) and into a second mixer (3); feeding in a facing (5); preparing a first gypsum slurry in the first mixer (2); preparing a second gypsum slurry in the second mixer (3); applying the first slurry onto the facing and forming a crude surface layer; applying the second slurry onto the crude surface layer and forming a crude core layer with a density lower than that of the crude surface layer; forming a plasterboard; hydrating and drying the board. This process allows the formation of the different layers of gypsum to be controlled independently.
摘要:
The apparatus includes a two-stage mixer formed within a single housing and including a first high shear mixer and a second low shear mixer. Plaster slurry is formed in the first mixer. A partition is laid on a first fixing sheet, a portion laid on a second fixing sheet, and the remainder discharged to the second mixer. In the second mixer, foam is added and the formed slurry is laid on the unformed slurry on the first fixing sheet. The unformed slurry in the second fixing sheet is brought to the formed slurry to join the product.
摘要:
An apparatus for forming ceramic composite panels is disclosed. The ceramic composite panel comprises a pair of skins disposed in spaced relationship to one another. The pair of skins comprises fibers of a generic fiber system disposed throughout a pre-ceramic resin in its ceramic state. A ceramic foam is disposed between the pair of skins.