Development of a Metal-Based Lightweight Approach Consisting of Cold-Formable Magnesium Sheets in Combination with a Multi-Purpose Powder Coating System

This paper will give an overview about the development of a material system, which consists of a novel formable magnesium alloy that is provided with an effective corrosion protection coating. The corrosion protection is to be realized in the form of a forming stable powder coating, which can be applied in the coil coating process. To improve the tribological properties, additional additives are added to the powder coating. Within this paper, first results concerning tribological and forming behavior of the new lightweight material system are given. For the benchmark, the results are compared with commercially available AZ31 Mg alloy

Innovative technology for highly productive powder coating of coils and blanks

The combination of a novel powder coating technique working without spray guns based on the electrostatic fluidised bed principle, and high-performance infrared radiators makes possible the option for high-speed powder coating and curing on coils and blanks at line speeds higher than 1 m/s. For the fast curing process, special powder coating materials have been developed that are highly reactive and have a high degree of plasticity that is needed to endure the deep drawing process for the precoated metal sheets. Electrical and gas-powered infrared radiators including NIR, STIR, and a porous gas burner have been compared in terms of high decorative and functional coating quality, as well as with respect to short curing time and high energy efficiency. With the new coil and blank coating technology, new markets for powder coating can be opened up, e.g., for automotive body parts and the building industry