摘要:
“Green”, ceramic tapes intended as building blocks for making complex, fully ceramic components and devices for electronic-, lab-on-chip-, and sensing applications, the manufacture of which comprises in sequence: I. mixing of a ceramic “green” paste, II. homogenisation of a ceramic “green” paste, III. dimensioning and optionally structuring the ceramic “green” paste, IV. drying of the dimensioned and structured ceramic paste, in which: step iii) is performed in a combination of an extruder and a calender, the extruder being provided with a circular extrusion die, splitting and unfolding the extruded tube to a flat, continuous tape strip, using methylcellulose or derivatives thereof as binder, and, an additional step chosen among cutting and punching the thus dimensioned and optionally structured “green” paste, thereby making thick, “green” tapes. A method for its manufacture is also contemplated.
摘要:
Methods and apparatuses for cutting thin film solar cells are provided. According to various implementations, the methods involve cutting a substrate having thin film solar cell materials deposited thereon by inducing a tear along the cutting line. Simultaneously with the tearing, the torn edges may be plastically deformed to produce a desired torn edge cross-sectional profile. Such a fracture may be induced by clamping regions of the substrate while simultaneously displacing the clamped regions relative to each other through the thickness of the substrate as the substrate is fed through the clamps providing the clamping. Apparatuses for cutting are also provided. According to various implementations, the apparatus may have cutter rollers and support rollers configured with an adjustable radial overlap.
摘要:
A method for making an inorganic sheet may include passing a sheet-forming composition including a major amount of inorganic particulate material through at least one pair of indented rollers, thereby forming an inorganic board. The method may further include passing the inorganic board through at least one pair of finishing rollers, thereby forming an inorganic sheet. A method of forming a sintered ceramic sheet may further include drying the ceramic sheet to form a green ceramic sheet, and sintering the green ceramic sheet to form a sintered ceramic sheet. A method of forming a multilayered ceramic composite may further include forming a green laminated product and sintering the green laminated product to form a multilayered ceramic composite.
摘要:
Compositions and methods for manufacturing sheets having a starch-bound matrix reinforced with fibers and optionally including an inorganic mineral filler. Suitable mixtures for forming the sheets are prepared by mixing together water, unmodified and ungelatinized starch granules, an auxiliary water-dispersible organic polymer, fibers, and optionally an inorganic mineral filler in the correct proportions to form a sheet having desired properties. The mixtures are formed into sheets by passing them between one or more sets of heated rollers to form green sheets. The heated rollers cause the auxiliary polymer to form a skin on the outer surfaces of the sheet that prevents the starch granules from causing the sheet to adhere to the rollers upon gelation of the starch. The green sheets are passed between heated rollers to gelatinize the starch granules, and then to dry the sheet by removing a substantial portion of the water by evaporation. The starch and auxiliary polymer form the binding matrix of the sheets with the fibers and optional inorganic filler dispersed throughout the binding matrix. The starch-bound sheets can be cut, rolled, pressed, scored, perforated, folded, and glued to fashion articles from the sheets much like paper or paperboard. The sheets are particularly useful in the mass production of containers, such as food and beverage containers.
摘要:
Compositions, methods, and systems for manufacturing articles, particularlycontainers and packaging materials, having a particle packed, highly inorganically filled, cellular matrix are disclosed. Suitable inorganically filled mixtures are prepared by mixing together a starch-based binder, a solvent, inorganic aggregates, and optimal admixtures, e.g., fibers, mold-releasing agents, rheology-modifying agents, plasticizers, coating materials, and dispersants, in the correct proportions to form an article which has the desired performance criteria. The inorganically filled mixtures have a predetermined viscosity and are heated between molds at an elevated temperature and pressure to produce form-stable articles having a desired shape and a selectively controlled cellular, structural matrix. The molded articles may be placed in a high humidity chamber to obtain the necessary flexibility for their intended use. The articles may be manufactured to have properties substantially similar to articles presently made from conventional materials like paper, paperboard, polystyrene, plastic, or other organic materials. They have especial utility in the mass-production of containers, particularly food and beverage containers.
摘要:
There is provided architectural molding apparatus including a supporting frame assembly and a paper roll assembly which delivers a continuous paper web via tension and drive rollers to an adhesive applicator where hot melt pressure sensitive adhesive is deposited on the web. The glue coated paper web passes over roller to a profiled polystyrene core at a set-up roller assembly. The core is delivered by a core feed assembly which is adapted to receive lengths of the core in abutting relation. The set-up roller assembly receives the core and urges the paper web glue side first into the core to form the molding assembly which passes to a laminating roller assembly adapted to urge the glue covered web into intimate contact with the profile face of the core. The molding assembly then passes to a series of rollers adapted to progressively fold and roll the web to completely wrap the core. The molding assembly then passes to a finishing roller assembly, a consolidating roller assembly and a final finishing roller, to ensure bonding integrity between the web and the core. The finished molding assembly passes to a flying shear assembly adapted cut the continuous molding assembly.
摘要:
Compositions, methods, and systems for manufacturing articles, particularly containers and packaging materials, having a particle packed, highly inorganically filled, cellular matrix are disclosed. Suitable inorganically filled mixtures are prepared by mixing together a starch-based binder, a solvent, inorganic aggregates, and optimal admixtures, e.g., fibers, mold-releasing agents, rheology-modifying agents, plasticizers, coating materials, and dispersants, in the correct proportions to form an article which has the desired performance criteria. The inorganically filled mixtures have a predetermined viscosity and are heated between molds at an elevated temperature and pressure to produce form-stable articles having a desired shape and a selectively controlled cellular, structure matrix. The molded articles may be placed in a high humidity chamber to obtain the necessary flexibility for their intended use. The articles may be manufactured to have properties substantially similar to articles presently made from conventional materials like paper, paperboard, polystyrene, plastic, or other organic materials. They have especial utility in the mass-production of containers, particularly food and beverage containers.
摘要:
Compositions, methods, and systems for manufacturing articles, particularly containers and packaging materials, having a highly inorganically filled matrix. Suitable inorganically filled mixtures are prepared by mixing together an organic polymer binder, water, one or more aggregate materials, fibers, and optional admixtures in the correct proportions in order to form an article which has the desired performance criteria. The inorganically filled mixtures are molded to fashion a portion of the mixture into a form stable shape for the desired article. Once the article has obtained form stability, the article is removed from the mold and allowed to harden to gain strength. The articles may have properties substantially similar to articles presently made from traditional materials like paper, paperboard, polystyrene, plastic, or metal. They have especial utility in the mass production of containers, particularly food and beverage containers.
摘要:
Compositions, methods, and systems for manufacturing articles, particularly containers and packaging materials, having a fiber-reinforced, starch-bound cellular matrix. Suitable mixtures used to form the articles are prepared by first preparing a viscous preblended mixture comprising water, a gelatinized starch-based binder, and fibers having an average length greater than about 2 mm. The highly viscous preblended mixture effectively transfers the shearing forces of the mixer to the fibers. The final moldable mixture is then prepared by mixing into the preblended mixture the remaining starch-based binder, water, and other desired admixtures, e.g., mold-releasing agents, inorganic filler rheology-modifying agents, plasticizers, coating materials, and dispersants, in the correct proportions to form an article which has the desired performance criteria. The moldable mixtures are heated between molds at an elevated temperature and pressure to produce form-stable articles having a desired shape and a selectively controlled foamed structural matrix. The articles may be manufactured to have properties substantially similar to articles presently made from conventional materials like paper, paperboard, polystyrene, plastic, or other organic-based materials and have especial utility in the mass-production of containers, particularly food and beverage containers.
摘要:
Cementitious containers which have a cementitious structural matrix for use in the packaging, storing, partitioning, and/or shipping of goods. The containers are manufactured from cementitious materials in order to be strong, durable, tough, lightweight, cushioning, insulative, inexpensive, and more environmentally compatible than those currently used in packaging, storing, and/or shipping goods. The cementitious structural matrix of the containers includes a hydraulic cement paste (formed from the reaction of water with, e.g., a portland cement) in combination with a rheology-modifying plasticizer, such as methylhydroxyethylcellulose. Preferred embodiments may also include various aggregate materials, fibrous materials, and air voids, which add the necessary strength while making the product lightweight, and which can provide insulative properties (if desired) at a cost which is economically justified in comparison to conventional paper and polystyrene products. The molded cementitious mixtures generally have sufficient strength in the green (or uncured) state to maintain their molded shape. The cementitious mixtures can be formed into flat sheets having greatly varying thicknesses depending upon the intended use of the container. Corrugated sheets can be made to increase the container strength.