Abstract:
A method of drying and/or curing an organic coating on a continuously running metal strip, includes heating the strip by electromagnetic induction in a tunnel furnace having an enclosure with hot internal walls and heating the enclosure. The heating of the strip by electromagnetic induction is coupled with heating by infrared radiation and heating by convection with a combustion gas. The heating of the enclosure of the furnace is performed by convection using the same combustion gas used for heating the strip by convection. A device for implementing the method is also provided.
Abstract:
The invention relates to a method for accelerated drying of at least one polymer which is located at least partially on a component, in particular at least a layer of paint and/or a sealing agent which is applied to an aircraft component in particular with a different material composition, involving the following steps of: a) at least partially applying the at least one polymer, in particular an epoxy resin and/or polyurethane-based layer of paint and/or a sealing agent, to an upper side of the component, and b) at least partially drying the polymer by means of electromagnetic radiation with a wavelength range of between 0.28 μm and 4.0 μm. Accelerated drying of the polymer, in particular the paint layer thereby becomes possible from an upper side of the component to an upper side of the paint layer, whereby high surface-quality of the painting can be achieved with processing times which are nonetheless short.Furthermore, the invention relates to a device for carrying out the method which allows particularly fully-automated implementation of the drying process with drying results which can at the same time be reproduced to a high degree.
Abstract:
A solid state radiation source array is provided, the array comprising at least one solid state ultraviolet radiation source and at least one solid state infrared radiation source.
Abstract:
A radiation appliance for irradiating surfaces of objects during powder coating, having energy radiators movably arranged on one carrier wherein at least one measuring temperature sensor that can measure the temperature of the object in at least one section of the surface of the object and a control unit are provided, wherein the control unit can record the measured temperature of the temperature sensor(s) and controls at least one energy radiator, which is assigned to the section of the surface whose temperature is being measured, and an arrangement and method for powder coating wooden objects, comprising a powder-coating station, a first radiation appliance, and a section for hardening or crosslinking the powder, wherein the first radiation appliance is arranged between powder-coating station and section and the second radiation appliance is arranged in the section, and the moisture content of the objects is set to 7 to 7.8 weight-percent water.
Abstract:
The invention relates to a radiation appliance (21) and a powder-application station (4), an arrangement thereof for powder-coating temperature-sensitive materials, such as timber-derived products and MDF panels (8), and an associated method. The inventive arrangement and method are characterised in that the specific geometry of the radiation appliance (21) or the corresponding mode of operation enables a short but sufficient homogeneous radiation action over the surface of the substrate (8) to be coated, without the core temperature of the substrate exceeding a critical value. Said arrangement comprises a grinding station (1), a flame-treatment station (2), a spray station (3), a powder-application station (4), a radiation appliance (5), and a curing/crosslinking region (6) that can preferably be continuously passed through. The inventive radiation appliance (21) is characterised in that the radiating elements are displaceably arranged in an annular or circular manner, while the powder-application station (4) is provided with diverting elements which are used to smooth the electrical field on the surface of the substrates and thus prevent concentrations of powder on edges and the like.
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 for coating a metal strip with a coating containing a solvent and for drying and/or cross-linking said coating. Accordingly, the metal strip is provided with the coating in an inner chamber of a coating device. The coated metal strip is conducted through a drying unit and in an inner chamber of the latter is exposed to a form of energy by at least one radiation source that is cooled by a cooling gas, said form of energy being converted to heat in the coating and/or the metal strip. The cooling gas that is supplied to the radiation source flows through the latter, absorbs the waste heat from said source and is then conducted into the inner chamber of the drying unit, thus saving energy and gas. The invention also relates to an installation that is suitable for carrying out said method.
Abstract:
A method for refurbishing a surface of a lamp having surface damage includes the steps of removing the lamp from the motor vehicle. An original clear coat finish is removed from the surface of the lamp. The surface of the lamp is evened. Swirls and scratches are grinded out of the surface. The surface is then buffed and cleaned. A replacement clear coat material is sprayed over the surface of the lamp. The replacement clear coat material is then cured.
Abstract:
A method of coating a substrate such as a heat sensitive engineered wood substrate which involves sequential powder coating where at least one and preferably both powder coating steps involves the use of fixed infrared heat sources (optionally pulsing themselves) passed which the developing product (the substrate and its coatings) moves thereby to provide a heat relaxation between maximum exposure to each (optionally pulsing) infrared source. Preferably the first coating is green cured only prior to the application of the second powder coating. Preferably similar pulsing heat sources are used for the initial heating of the substrate so as to enable powder coating.
Abstract:
A method of powder coating thermo powder resins to non-conductive plastic substrates, in particular, to polyamide materials and other non-conductive plastic substrates. After cleaning the substrate, a water-based adhesive/primer is applied to the substrate and then cured to promote adhesion, protect the substrate from unwanted chemical reactions and increase the electrical surface conductivity of the substrate to provide to better coating and transfer efficiency of the thermosetting powder to the substrate.