摘要:
La pièce (1) de forme polygonale comporte, sur chaque côté (C1 à C6), au moins l'un des éléments d'assemblage suivants : au moins un tenon (3), au moins un évidement (4), chacun desdits tenons (3) et chacun desdits évidements (4) de la pièce (1) présentant des formes de trapèze, respectivement de formes complémentaires, le trapèze de chacun desdits tenons (3) s'élargissant vers l'extérieur de la pièce (1) et le trapèze de chacun desdits évidements (4) s'élargissant vers l'intérieur de la pièce (1), et chacun desdits tenons (3) présentant une largeur définie transversalement à une médiatrice du trapèze correspondant, qui est plus importante que la largeur de chacun desdits évidements (4).
摘要:
The invention relates to a honeycomb core (10), particularly for a sandwich-type component, which consists of at least two honeycomb-core parts (12, 14) which are connected to one another. For weight-saving purposes, at least two honeycomb-core parts (12, 14) at a time are joined together, at edges (16, 22) that face towards one another, by means of a honeycomb-core interlocking system (24).
摘要:
A method for producing an alveolar panel element particularly for coverings, packagings, supporting surfaces and the like, comprising the steps of extruding a first layer (3) and a second layer (4) of thermoplastic material, shaping the first and second layers so as to provide, on each layer, a sheet-like element (20) with elements (21) that protrude on at least one face, and coupling the protruding elements of each layer in order to obtain an alveolar panel element.
摘要:
A process for bonding a semi-crystalline or crystalline thermoplastic polymer to a thermosetting polymer component, the process including selecting compatible semi-crystalline thermoplastic polymer and uncured thermosetting polymer components wherein the curing temperature of the uncured thermosetting polymer components is above the melting temperature of the semi-crystalline thermoplastic polymer. The process includes locating the thermoplastic polymer in contact with the uncured thermosetting polymer component and heating the thermoplastic polymer and uncured thermosetting polymer or thermosetting polymer composite component to the curing temperature of the thermosetting polymer, where the uncured thermosetting polymer components and the thermoplastic polymer are able to at least partly interpenetrate before the thermosetting polymer cures. The thermoplastic polymer and cured thermosetting polymer component are then cooled such that the thermoplastic polymer is very strongly bonded to the cured thermosetting polymer component.
摘要:
The invention relates to a method for producing a composite board (1) that comprises a supporting core (2) linked with a cover layer (3) covering the longitudinal face (5) of the board (1). The system consisting of the supporting core (2) and the cover layer (3) is thermoplastically interlinked by subjecting it to heat and a pressing step (12) applied on the longitudinal face (5), and then cooling it off. The inventive method is further characterized in that before the pressing step (12) is performed, the system is provided with a detachable lining (4) consisting of a temperature-resistant material that covers the longitudinal face (5) of the system, and subjecting the lined system to the pressing step (12).
摘要:
A method of making a composite sandwich panel comprises the steps of (i) making a core structure, (ii) making at least one facesheet, (iii) bonding at least one of the at least one facesheets to the core structure, wherein the growth of a carbon nanotube structure is achieved during at least one of steps (i) to (iii).
摘要:
Die vorliegende Erfindung betrifft eine Kunststoffkante (1) für Möbelstücke (2), aus einem thermoplastischen Basismaterial, die im teilweise aufgeschmolzenen Zustand mit dem Möbelstück fügbar ist, ferner ein Möbelpaneel (3) mit einer solchen Kunststoffkante, sowie ein Verfahren zur Herstellung eines solchen Möbelpaneels, bei dem die Kunststoffkante auf ihrer dem Paneelkorpus zugewandten Seite mittels Laserstrahlung und/oder heißem Gas- oder Plasmastrahl aufgeschmolzen und mit der aufgeschmolzenen Oberfläche gegen den Paneelkorpus gedrückt wird. Erfindungsgemäß besitzt die Kunststoffkante einen einschichtigen Aufbau mit im Wesentlichen homogener Materialzusammensetzung über den gesamten Kunststoffkantenquerschnitt, wobei dem thermoplastischen Basismaterial der Kunststoffkante als Zusatzstoff ein Viskositätsabsenker zur Verbesserung des Schmelzflusses zugegeben ist.
摘要:
The invention relates to a method for producing a thermosetting strip (2e) having a honeycomb half-cell shape from a strip material (2), wherein the strip material (2) consists essentially of a fibre material, in particular a paper web, said fibre material being pre-impregnated with a binder that is to be cross-linked to a thermosetting material. According to the invention, the strip material (2) is continuously conveyed, thereby heated and subjected to a pressure in order to cause a condensation reaction. A pressure is exerted on the continuously conveyed strip material (2) under the effect of a rolling movement, the binder is pressed into the strip material (2) and the condensation products which were released during the polycondensation process are pressed out of the strip material (2) by guiding the strip material (2) between two stamping wheels which are mutually engaging, heated and mutually roll off so that the strip material (2) is heated by the stamping wheels (4a, 4b), is subjected to the pressure and is at the same time shaped to form a strip having a honeycomb half-cell shape (2e).
摘要:
Verfahren zur Herstellung eines duroplastischen, halbwabenförmigen Streifens (2e, 2f) aus einem Streifenmaterial (2), wobei das Streifenmaterial (2) im Wesentlichen aus einem Fasermaterial, insbesondere aus einer Papierbahn besteht, welches mit einem zu einem Duroplast vernetzenden Bindemittel vorimprägniert ist, wobei das Streifenmaterial (2) kontinuierlich gefördert wird und dabei erwärmt wird und einem Druck ausgesetzt wird, um eine Kondensationsreaktion zu bewirken, wobei über eine Abrollbewegung ein derartiger Druck auf das kontinuierlich geförderte Streifenmaterial (2) ausgeübt wird, dass das Bindemittel in das Streifenmaterial (2) hinein gepresst wird, und dass während der Polykondensation frei gesetzte Kondensationsprodukte aus dem Streifenmaterial (2) hinaus gepresst werden, indem das Streifenmaterial (2) zwischen zwei ineinander greifenden, beheizten, gegenseitig abrollenden Prägerädern (4a, 4b) hindurchgeführt wird, sodass das Streifenmaterial (2) durch die Prägeräder (4a, 4b) erwärmt wird, dem Druck ausgesetzt wird und zugleich zu einem halbwabenförmigen Streifen (2e, 2f) geformt wird.
摘要:
A method of forming plastic containers is disclosed. The method includes: providing a support platen having a cut outline and a groove outline in the top surface of the support platen and a plurality of exhaust ports in the bottom of the groove, where a plurality of spaced perforations are in the top surface of the support platen, where the groove is configured to define a cut outline; positioning a first film on the top surface of the support platen; providing a laser to cut the first film along the cut outline of the top surface of the support platen; providing a second film on top of the first film; connecting the plurality of exhaust ports and the plurality of space perforations to a vacuum source to secure the first film to the support platen; directing a jet of gas onto the second film at the to maintain the second sheet in contact with the first sheet at a seam during welding concentric with a beam from the laser to weld the first film and the second film; moving the laser and the support platen relative to each other to weld the first film and the second film along a seam outline; and providing the laser to cut the first film and the second film along the cut outline to provide a trimmed bag.