摘要:
The present invention relates to a process for the production and form preservation of an end-product made of cementitious material comprising a rapid stiffening phase of the neo-extruded end-product made of cementitious material by irradiation of the neo-extruded end-product with microwaves.
摘要:
The process includes the application to the cement mixes of electromagnetic microwaves. The device includes a chamber in the form of a tunnel (8), defined by a supporting framework (2) in which are accommodated cement mixes (7), preferably on a casting bed (5), and microwave generator, in the form of a plurality of magnetrons (17) supported by vertically adjustable cross members (10). The magnetrons (17) are provided with telescopingly adjustable waveguides (18) having an outlet (18b) in the chamber (8), and the supporting framework (2) is slidable on a track (4).
摘要:
A method of drying a ceramic formed body (1) comprising the step of performing dielectric drying on an unfired honeycomb formed body (1) formed with a ceramic material as a main raw material under a condition that a power density is 5 to 20 [kW/kg (water)].
摘要:
In one example, a method of fabricating a three-dimensional object includes depositing a layer of build material, depositing a coalescing agent onto the layer of build material according to a slice of three-dimensional model data, irradiating the coalescing agent with microwave radiation such that the coalescing agent converts the microwave radiation into heat to coalesce the build material in which the coalescing agent was deposited.
摘要:
Die Erfindung betrifft eine Temperier- und Pressvorrichtung für anorganisch gebundene Holzwerkstoffplatten, aufweisend mindestens eine Kassette zur Aufnahme eines Bindemittel-Holzspangemisches als Spanvlies und Mittel zum Verpressen der Kassette, welche dadurch gekennzeichnet, dass die Temperier- und Pressvorrichtung Mittel zur aktiven, gleichmäßigen und regelbaren Beheizung und/oder aktiven Kühlung des Spanvlieses aufweist. Die Erfindung betrifft weiterhin ein Verfahren zur Herstellung von anorganisch gebundenen Holzwerkstoffplatten in einer Temperier- und Pressvorrichtung.
摘要:
Disclosed is a ceramic honeycomb structure comprising a honeycomb body and a multilayered outer layer formed of a thick core layer applied and rapidly dried and a thin clad layer dried more gently to form a crack free dual skin layer. The core layer may have properties that are closer to those of the ceramic honeycomb body in service than the clad layer that may provide a tough outer shell to withstand handling and assembly.
摘要:
In a process for manufacturing a catalytic converter component, a ceramic unit is used that has been prepared by extruding green ceramic product through a die to form an extrusion having a honeycomb substrate structure in which tubular passages extend along the extrusion, the passages bounded by walls dividing adjacent passages from one another. The unit is obtained by cutting off a length of the extrusion and curing and firing it. The process further comprises flowing insulation material from one end of the unit into selected ones of the elongate passages, the insulating material then being cured by microwave irradiation. The passages are selected so that the cured insulation material forms an internal thermal insulating barrier between a core zone of the unit and a radially outer zone of the unit.
摘要:
Provided is a method for producing a vacuum insulation material having excellent thermal insulation properties even in high-temperature environments, and having excellent thermal insulation properties over long periods of time. A core is produced by molding a core starting material composition, containing a talc-based clay mineral, a potassium compound and an organic solvent, into a predetermined shape to yield a core molded body, and firing the core molded body at a temperature that is lower than the melting point of the talc-based clay mineral. The core is vacuum-packaged with a gas-barrier packaging material, to thereby produce a vacuum insulation material.