Abstract:
The invention relates to a continuous process in which porous narrow sides of workpieces (1) made of wood, wood substitutes or wood-like materials, such as a board and notably a chipboard, are improved, coated with a separate coating material (6) and glued with same in a continuous step. According to the continuous process provided for in the invention a combined filler and adhesive mass (3) is applied to the narrow side (2) of the continuously moving workpiece (1). The separate coating material (6) is applied to said filler and adhesive mass (3) while it is still adhesive. The coating material (6) is then pressed against the profiled shape of the narrow workpiece side (2) such that it moulds around the outline of same and glued by means of the combined filler and adhesive mass (3). The invention also relates to a continuous machine for carrying out the above method.
Abstract:
The proposed biologically degradable material is based on shellac and can be obtained by causing shellac or a derivative thereof to react with at least one C6-C10 carboxylic acid and at least one dicarboxylic acid using acid catalysis.
Abstract:
Vorrichtung zum Bedampfen eines Bauteils (1). Die Vorrichtung umfasst eine Fördereinheit (2) mit zumindest einer Förderstrecke (3) und mindestens einem entlang der Förderstrecke (3) verfahrbaren Aufnahmeelement (4), eine Bedampfungseinheit (5) mit zumindest zueinander beweglichen Teilsegmenten (6), die zwischen einer geschlossenen und einer geöffneten Position bewegbar sind und in der geschlossenen Position eine Bedampfungskammer (7) ausbilden, sowie ein Steuereinheit, die in Verbindung mit der Bedampfungseinheit (5) und der Fördereinheit (2) steht. Die Steuereinheit erhält von der Fördereinheit (2) Informationen über eine Position des Aufnahmeelements (4) und steuert derart an, dass die Teilsegmente (6) von der geöffneten Position in die geschlossene Position bewegt werden, wenn ein an dem Aufnahmeelement (4) befestigtes Bauteil (1) zwischen dem Teilsegment (6) positioniert ist, so dass das Bauteil (1) von der Bedampfungskammer (7) umschlossen und anschließend ein zumindest teilweise gasförmiges Fluid in die Bedampfungskammer eingebracht wird.
Abstract:
The invention concerns a process for producing a security film, comprising: forming a polymeric film substrate having first and second surfaces and comprising one or more migratory additives; plasma treating at least a part of at least one surface of the polymeric film substrate; and promptly contacting a foil with the at least one part of the plasma treated surface of the polymeric film substrate such that the foil adheres to the polymeric film substrate.
Abstract:
A method of applying protective sheeting (9) of polymer material to a pipeline (1) extending along a longitudinal axis (A1) and having a cutback (8) bounded at opposite axial ends by two end portions (10) of respective protective coatings (5) of polymer material, the method including directly heating the free faces of the end portions (10); extruding and simultaneously winding about the pipeline (1) a protective sheeting (9) wide enough to cover the cutback (8) and the end portions (10); and compressing the protective sheeting (9) against the pipeline (1), the end portions (10) included.
Abstract:
The invention relates to a method for producing a honeycomb core sandwich plate provided with an edge protection. Said honeycomb core sandwich plate (60) comprises a plate-shaped core (10) with a cellular structure and comprises, on each side of the plate-shaped core (10), a cover plate (20, 30) that is adhered to the core (10). In addition, the honeycomb core sandwich plate (60) comprises an encircling plate edge (70) that is to be at least partially provided with an edge protection, whereby the plate edge (70) is delimited by the faces (22, 32) of both cover plates (20, 30) resting on the plate edge (70). The plate edge (70) to be provided with an edge protection is subjected to the action of a pressurized adhesive discharged by one or more adhesive discharge nozzles, which is/are continuously guided over said plate edge (70), and is subsequently squeegeed as to completely fill at least the cellular structure of the core (10), which is open toward the plate edge (70), with adhesive, whereby the resulting adhesive layer (40) has a smooth surface on the outside. An edge strip (50), which is essentially flat on both sides, is continuously guided on and adhered to the plate edge (70) to which adhesive (40) had been previously applied.
Abstract:
The invention relates to a quality control for coating the surface of an object, especially the surface of a car bumper (1) with a plastic film (2). During and/or after application of the plastic film to the surface, said coating is irradiated with infra-red radiation in order to heat at least parts of the coating and/or optionally residual moisture between the surface and the plastic film (2). This enables slight inequalities of the plastic film to be compensated, the adhesive coating is distributed in a homogeneous manner and the optionally residual moisture is collected in the form of bubbles following infrared radiation. Defects or irregularities in the coating can thus be identified during or shortly afterwards radiation.
Abstract:
A method consists in inserting into a pipeline (2) a flexible sleeve (4), moving and pressing it to the inner surface of the pipeline (2) by means of creation of excessive pressure inside a hollow between the pipeline (2) and the sleeve (4) the end of which is fixed to the inner surface of the pipeline (2). To ensure the fixation of the sleeve (4) to the pipeline (2) and creation on the inner surface of the latter a protective layer, the pipeline (2) is heated from inside. A device for implementation of the method comprises a system (1) for feeding a working agent into the pipeline (2), a system for inserting the flexible sleeve (4) into it, a heater of the pipeline (2) and a system of synchronization of the movements of the sleeve (4) and of the heater. In a preferable variant of implementation of the invention the heater consists of an inductor (18) which is mounted inside the pipeline (2) in front of the moving sleeve (4) with the possibility of longitudinal displacement and which is connected to an electric current source (7).
Abstract:
The method consists in inserting into the pipeline a flexible sleeve, moving and pressing it to the inner surface of the pipeline by means of creation of an excessive pressure inside a hollow between the sleeve and the pipeline. Simultaneously with the pressing of the sleeve onto the inner surface of the pipeline, the latter is heated from inside and the difference between the pressures on both sides of the sleeve inserted into the pipeline is controlled.
Abstract:
A mold release composition is provided contains a minimum of three reactive moieties per molecule to provide for both mold adhesion and crosslink density. The composition is soluble in a VOC-free organic solvent or water, alone or with resort to an emulsifier. The composition can be used as a semi-permanent mold release in some embodiments.