Abstract: The invention relates to a method and an assembly for producing a flat printed packaging material, having the steps of:—providing a quasi-endless web of the packaging material on a first web roller or—providing a sheet of the flat packaging material on a first sheet stack,—unwinding or receiving and transporting the packaging material by means of at least one printing station for printing a surface of the packaging material,—subsequently transporting the packaging material through at least one drying station in order to dry the printing on the packaging material, and—winding the printed and dried packaging material onto a second web roller or—depositing the printed and dried packaging material onto a second sheet stack, wherein the drying process in the drying station comprises an irradiation process using electromagnetic radiation with a radiation density maximum in the near-infrared range and with a high power density, in particular between 100 and 800 kW/m2, and the packaging material is transported at lea

Abstract: A hot-melt printing process for producing a product is provided wherein the product is built up by applying polymer plies of powder or filament to a previously produced layer and by selectively locally heating predetermined points above a sintering or melting temperature and sintering or fusing the melted points with the underlying layer, wherein the respective newly applied polymer ply and optionally at least one underlying layer is preheated to a temperature with a predetermined difference to the sintering or melting temperature by flat or migrating irradiation of short-wave or medium-wave IR radiation, and wherein the preheating of at least the newly applied polymer ply and/or the local heating above the sintering or melting temperature is carried out by means of near IR radiation, in particular with a radiation density maximum in the wavelength range between 0.77 and 1.2 µm and with high power density above 200 KW/m2.

Abstract: 3D metal printing process for producing a spatial metal product essentially from a metal powder or metal filaments as starting material, the powder or the filaments being built up layer by layer by applying layers of starting material to a respective previously produced layer and selective local heating of predetermined points of the layer above a sintering or melting temperature of the powder and sintering or fusing of the molten points with the underlying layer and optional annealing of the points. wherein at least the respective newly applied starting material layer is pre-heated and/or post-treated for thermal stress compensation following the local heating of the predetermined points by means of two-dimensional irradiation of IR radiation in such a way that a radiation spot with an area of at least 5 mm2, more particularly of more than 20 mm2 and even more particularly of more than 100 mm2, is formed on the surface of the starting material layer.

Abstract: The invention relates to a 3D hot-melt printing process for producing a three-dimensional product (P) substantially from a polymer powder or polymer filaments, the product being built up in layers by application of polymer plies of powder or filament onto a respectively previously produced ply and selective local heating of predetermined points on the ply by means of a sintering or melting temperature of the powder or of the filaments and sintering or melting of the melted points with the underlying layer. The polymer ply which is in each case newly applied and optionally at least one underlying layer is preheated by planar or travelling irradiation of short- or medium-wave IR radiation to a temperature with a predetermined difference for sintering or melting temperature.

Abstract: Radiation apparatus for technical use, with a large number of stretched-out radiation sources emitting in or between the UV and IR ranges and a large number of main reflector segments that are bent and/or folded out of metal sheet in a shape adapted to that of the radiation sources, while the main reflector segments are formed as separate main reflectors and are held, singly replaceable and independently of the radiation sources, in a radiation source housing.

Abstract: Apparatus for paint or lacquer coating of a sheet capable of coiling that has precisely one drive, which is assigned in effect to a second coiling mount, wherein essentially no further means of influencing the running characteristics of the sheet are provided for.

Abstract: Radiation apparatus for technical use, with a large number of stretched-out radiation sources emitting in or between the UV and IR ranges and a large number of main reflector segments that are bent and/or folded out of metal sheet in a shape adapted to that of the radiation sources, while the main reflector segments are formed as separate main reflectors and are held, singly replaceable and independently of the radiation sources, in a radiation source housing.

Abstract: A coil coating process includes thermally curing the coating of an endless strip by near infrared radiation in a curing oven provided with near infrared emitters and the subsequent destruction of volatile solvents contained in exhaust air of the curing oven by thermal oxidizing in an oxidizer chambers. Heat introduced into the solvent within the curing step is used in the oxidizing step.

Abstract: Apparatus for paint or lacquer coating of a sheet capable of coiling that has precisely one drive, which is assigned in effect to a second coiling mount, wherein essentially no further means of influencing the running characteristics of the sheet are provided for.

Abstract: The invention relates to a method and a system for irradiating objects with infrared radiation, in particular in order to dry surface layers and/or fix them in place, wherein a radiation source (10) is moved by means of a robot (1) into one or several operating positions in which the particular target object is irradiated.

Abstract: The invention relates to a method of drying coated and/or impregnated objects (5), in particular lacquered wood, wherein [drying of] a coating agent and/or impregnation agent applied to the surface of the object concerned is completed before a characteristic period of time has elapsed, by irradiating the coated or impregnated surface with infrared radiation. The characteristic period of time is determined by the time needed for components of the coating and/or impregnation agent (22) to migrate away, i.e. by penetrating into the object (5), so that the quality of the coating or impregnation is impaired. Alternatively or in addition, the characteristic period of time is determined by the fact that after it has elapsed, a solvent and/or dilution fluid that is contained in the coating and/or impregnation agent (22) and is to be driven out and/or bound during the heating process has caused fibers in the object (5) to be raised up, so that a secondary treatment of the surface is necessary or desirable.

Abstract: Method of removing dents from sheet-metal parts, in particular from lacquered parts of an automobile body, wherein the metal part (3) in the region of a dent (B) is warmed locally in a substantially non-contact manner, in such a way that a mechanical tension gradient produced by the local warming causes the dent to spring back so as to restore the original shape of the metal part.

Abstract: The invention proposes a system for manufacturing sheet-like printed products (3), in which sheet-like starting sections (2) are processed. These starting sections are transported through at least one printing station (13) by means of a transport device (4). The application of a printed image takes place in the printing station (13) with the aid of a printer (26) and a subsequently arranged dryer (32), with an electronic printed image specification device (43) making it possible to realize individual printed images on individual sheets.

Abstract: Method and apparatus 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, the 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.

Abstract: A method and an apparatus for drying a substance that is being rapidly conveyed in a conveyor apparatus, in particular for drying layers of printing ink on rapidly transported paper, wherein in a drying zone by means of incident electromagnetic radiation a moisture component, in particular a solvent, is separated from the substance to be dried. The separated moisture component is transported away from the drying zone by means of a transport gas current. Efficient and rapid drying of in particular printed newsprint or thermal printing paper is attained at high conveyor velocities.

Abstract: The invention relates to a method and its implementation for the rapid calibration of thermoelements, preferably in the temperature range from 700.degree. C. to 1800.degree. C. The calibration apparatus consists of commercially available components, is therefore comparatively very economical, light and portable; the energy consumption is low, because the conventional heating chamber can be eliminated. Errors of the first and second kind associated with the thermoelements to be calibrated are detected.