摘要:
A method and a component piece made from materials of natural and/or mineral stone residues, binders and additives and/or vegetable residues and/or animal residues and/or industrial residues that can be used in several applications in the construction sector, such as, for example, in the manufacturing of kitchen countertops, wall coverings, thermally insulated and/or soundproof panels, etc. During the method the mold is heated which improves the quality of the final piece obtained.
摘要:
The description relates to a method for manufacturing concrete revetment elements, comprising of: - arranging concrete material in the mould cavity of a mould; - heating at least a part of the mould at one or more locations so that at least some of the concrete material adjacent to the inner side of the mould is removed; - removing the mould from the revetment element. The description also relates to a device for manufacturing a concrete revetment element, comprising: - a mould (7) with one or more displaceable mould parts (13, 14); - heating elements (30, 31) configured to heat the wall of the mould (7) for at least partially evaporating concrete material adjacent to the inner side of the mould; - a displacing unit for displacing the mould part (13, 14) between a closed and opened position.
摘要:
L'invention concerne un banc de fabrication de poutrelles par filage, comportant un platelage (1) sous forme d'une plaque en acier portée par des fondations et qui est destinée à être chauffée lors d'une étape d'étuvage des poutrelles. Le banc selon l'invention comporte des moyens de fixation du platelage (1) aux fondations qui comprennent au niveau d'un même bord longitudinal (3) du platelage (1), d'une part un élément de solidarisation rigide du platelage (1) aux fondations, et d'autre part plusieurs éléments de liaison glissière longitudinales (6) reliant le platelage (1) aux fondations.
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:
PCT No. PCT/SE95/01434 Sec. 371 Date May 14, 1998 Sec. 102(e) Date May 14, 1998 PCT Filed Nov. 30, 1995 PCT Pub. No. WO96/19308 PCT Pub. Date Jun. 27, 1996A process for production of a moulded ceramic and/or metallic body from a ductile material comprising one or more ceramic and/or metallic components, which material is fed into the pre-heated mould cavity (1) of a moulding tool. The moulded tool includes at least two mould parts (4, 5) of which at least one wholly or partly consists of a microporous material with communicating micropores. At least one mould cavity (1) comprising at least one mould surface (2, 3) exhibiting closed micropores is arranged in the microporous mould part (4, 5) or in a microporous section (6) thereof. The microporous mould part (4, 5) or the microporous section (6) thereof is pre-heated by supply of warm fluid, such as a heated gas. Said part (4, 5) or section (6) is after terminated moulding cooled by supply of cold fluid, such as a condensed gas. the invention includes in a further aspect a moulded body produced according to the process.
摘要:
Sealable liquid-tight containers and methods for economically manufacturing such containers for storing and dispensing substances and any other purposes for which conventional sealable liquid-tight containers are utilized. The containers are readily and economically formed from mixtures of hydraulically settable binders such as hydraulic cement, gypsum and clay with water. Appropriate additives can also be added to the mixture which impart desired characteristics and properties to both the mixture and the hardened containers. The mixtures can be utilized to form containers by various methods. One method involves forming the containers without substantial mixing of the mixture, compacting the mixture and hydrating the mixture. Other methods involve molding the mixture, extruding the mixture and forming sheets from the mixture to be converted into containers. The components may also be dried, coated, lined, laminated and/or receive printing.
摘要:
Compositions, methods and systems for manufacturing arcticles, including containers and packaging materials, from hydraulically settable and inorganically filled materials are disclosed. Suitable compositions are prepared by mixing together a hydraulically settable binder or organic binder, water, and appropriate additives, such as aggregates, fibers, and rheology-modifying agents, which impart predetermined properties so that an article formed therefrom has the desired performance criteria. The desired article can be molded from the mixture using a variety of moding processes including: die pressing, injection modling, blow molding, jiggering, wet sheet molding, and dry sheet molding. The sheet forming processes require the mixture to first be fashioned into a sheet, such as by the use of an extruder (12) or rollers, after which the sheet is formed, it is hardened. Printed indicya and a coating can then the applied.
摘要:
Die Erfindung betrifft eine Vorrichtung zum Erwärmen eines in einem Kanal geführten Strangs aus einem elektrisch leitfähigen, vorzugsweise durch die Erwärmung sich verfestigenden Materials, beispielsweise eine Bindemittel aufweisende Rohmischung zur Herstellung von Baustoffen, wobei eine Kondensatorplattenanordnung, die an mindestens einen Hochfrequenzgenerator angeschlossen ist, elektrisch isoliert gegenüber dem Strang angeordnet ist. Die Kondensatorplattenanordnung ist dabei so ausgestaltet, daß sie eine möglichst gleichmäßige Erwärmung des Strangmaterials ermöglicht und eine Schalenbildung innerhalb des Strangs vermieden wird.
摘要:
Procédé et dispositif de contrôle de la vitesse de cure du béton consistant à mesurer la température du béton, à déterminer la maturité momentanée du béton au moyen des variations de température et à contrôler l'apport ou la dissipation thermique en fonction de la maturité momentanée de sorte qu'à la fin de la période le béton possède la maturité désirée. Un mode préférentiel de réalisation du dispositif selon l'invention comprend un dispositif de mesure de la température (15) destiné à être connecté à au moins un détecteur de température (6, 7), et un dispositif de calcul (16) relié au dispositif de mesure de la température (15), permettant de déterminer la maturité momentanée et pourvu d'un organe d'introduction de données (17) et d'un organe d'affichage indiquant la maturité momentanée déterminée.