摘要:
The invention relates to a device for the thermal bonding of a flexible coating (13) to a support (12), using a fluidized bed of particles (4), comprising an internal zone, called a heating box (10) smaller in size than that of the enclosure (2), which is placed approximately at the centre of the latter, said heating box having a gas distributor (6b), a diffusion mesh (7b) and a gas feed system (5b, 9) that are separate and isolated from those of the enclosure and of the heating means (11) designed to be placed in the particle bed. The invention also relates to a thermal bonding method suitable for being implemented by this device.
摘要:
The invention relates to a chamber including a sealed connection assembly sliding inside a translation plane (P), having two rigid parts (1, 2), one of which comprises a groove (G). A planar seal (3) and at least one O-ring seal (4, 5) are positioned in the groove, with the O-ring seal under the planar seal. An active surface (S 3 ) of the planar seal, which projects above the groove, is compressed against a planar bearing surface (S 2 ) of the other rigid part. The chamber can be used in a device for applying a plastic film onto a spectacle lens, in order to move the lens inside a variable-pressure space.
摘要:
A method sticks onto a curved surface of a substrate a functional film (4) that has a substantially planar initial shape. To this end, the film (4) is retained on a deformable membrane (1) by connecting means (2) that allow portions of said film to slip relative to the membrane when said membrane is deformed. This reduces stresses that are created in the film by the deformation. The method is adapted for applying a functional film to an ophthalmic lens.
摘要:
There is provided an apparatus (2) for the forming or curing of a fibre-reinforced polymer composite material (10). The apparatus (2) comprises a first layer of material (4) positioned to overly the fibre-reinforced polymer (10); a second layer of material (6) positioned to overly the first layer (4) to define a chamber (8) therebetween. The apparatus (2) further comprises a vapour source (16) and a fluid communication path having; a transfer section (18) in fluid communication with the vapour source (16) and chamber (8), and, a return section (20) in fluid communication with the chamber (8) and the vapour source (16).
摘要:
Die Erfindung betrifft eine Kaschiervorrichtung (1) zum Kaschieren eines Trägerformteils (12) mit einem Bezugsstoff (13), aufweisend ein Unterwerkzeug (2) und ein Oberwerkzeug (3), die über Mittel zum Einspannen in eine Kaschierpresse verfügen und zwischen sich einen Arbeitsraum (4) bilden, wobei die Unterwerkzeugoberfläche (10) dem Trägerformteil (12) entsprechend konturiert mit Erhöhungen (14), mit Kantenbereichen und Vertiefungen (15), mit Flankenbereichen (15a) sowie die Oberwerkzeugoberfläche (24) entsprechend als Matrize mit Vertiefungen (26) und Erhöhungen (27) mit Eckbereichen (26a) und Flankenwandungsbereichen (27a) konturiert sind und wobei das Oberwerkzeug (3) arbeitsräumseitig ein elastisches Andrückmittel aufweist, wobei das Andrückmittel eine die Matrizenoberfläche abdeckende Membrane (28) ist, die jeweils lediglich in Randbereichen der Matrizenoberfläche (24) fluiddicht am Oberwerkzeug (3) befestigt ist und insbesondere auch die Eckbereiche (26a) und Flankenwandungsbereiche (27a) überdeckt.
摘要:
A device (4) for mounting a film (2) on a component (1) has a membrane (3) for holding the film (2). Said membrane (3) is surrounded by a closed frame (5) which has a peripheral, elastic seal (6) on its front side, this being the side facing the component (1) when the device (4) is used. A space (12) between the membrane (3) and the component (1) is connected to a source of negative pressure (9) with a negative pressure connecting piece (8). This causes the film (2) to apply itself to the component (1).
摘要:
A method and apparatus is disclosed whereby an assist fixture is provided to clamp about a seat assembly (12), whereupon both are immersed in a bed apparatus (10) and into a pressed relation against a cushion of hot air (80). The seat assembly (12) includes a preformed flexible pad having an appearance surface (32) and a cover adapted to be adhesively bonded to the pad (16) during the immersion. The assist fixture includes tubular members which press the cover into preformed indentations in the appearance face of the pad to assist in enhancing surface definition, the tubular members can be adapted to pass hot or cold air depending on the stage of the process.