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Solutions for Trends in Industrial Coating Technology
7th World’s Leading Trade Fair for Industrial Coating Technology from 17 to 20 April 2018 in Karlsruhe (Germany)(PresseBox) ( Oberboihingen, )
Whether liquid painting, powder coating or coil coating is involved – running processes more efficiently and sustainably, improving coating quality and enhancing productivity are being targeted on the one hand. Changing requirements with regard to product individualisation and digitalisation of manufacturing processes are being tackled on the other hand. Exhibitors at the upcoming PaintExpo, being held at the Karlsruhe Exhibition Centre from 17 to 20 April 2018, will offer a broad range of innovations and further developed products and services for the fulfilment of these tasks. The list of participating companies includes practically all of the sector’s market and technology leaders. “This makes it possible for job-shop coaters and visitors from companies with in-house coating operations to gather comprehensive information about the most up-to-date developments and trends in the field of industrial coating technology. At the same time, corresponding investment decisions can be prepared and implemented which contribute to the firming up and expansion of one’s competitive position within the global market”, reports Jürgen Haußmann, managing director of event promoters FairFair GmbH.
Improving Material Efficiency
Increasing material efficiency is an issue for which the exhibitors present innovative solutions. Attention is focused on application systems both with and without electrostatic charging, which per se permit higher levels of material efficiency. For example, spray guns with electrostatic charging for manual and automatic application of liquid paints will be presented, by means of which significant material savings can be realised. In the case of large automated painting lines, high-speed rotary atomisers – with adjustable spray-jet width as well – permit efficient material usage. And layer thickness can be ideally matched to the object to be painted with devices for contactless, online layer thickness measurement. In addition to material savings, this results in improved coating quality and minimal scrap rates. Optimal alignment of the application system to the object to be painted also has a significant influence on material efficiency. Laser scanning systems are available to this end for liquid painting as well as powder coating, which precisely detect the contour of the object to be coated and automatically compile the object’s shape in combination with the controller using 3D software, correspondingly position the spray gun’s axes and adjust the coating parameters.
A further approach to improving material efficiency involves pigment feeding. Savings are made possible in this regard through the use of systems for, amongst other things, intelligent control of colour changeovers and/or rinsing processes, as well as improved pigment dosing. Generally speaking, electronic monitoring of parameters such as pressure, temperature and output increases transparency, thus making it possible to set up processes more efficiently. Corresponding control solutions will also be showcased at PaintExpo.
As a result of the trend towards greater individualisation, demand for multicolour coatings is continuously on the rise. The goal is to be able to apply coatings without any masking at all, or with significantly reduced masking work and less overspray. An application implemented in the field of aviation demonstrates that this is feasible. It’s used to add decoration to an aircraft tail fin without any overspray through the use of individual droplets. Spray film is another approach which can be applied with a very sharp edge and simply pulled back off again later.
Automation and Industry 4.0
Manual painting work will remain indispensable in the future, but there’s a trend towards the automation of application processes where series painting is concerned. This is being driven by the development of small, low-cost, easy-to-program robots. They permit high levels of reproducibility and process quality, and thus contribute to improved efficiency and a sharper competitive edge for companies with in-house painting facilities.
Beyond this, high-performance manufacturing execution systems (MES) will also be presented as a key component for efficient manufacturing. They network the factory throughout the entire manufacturing process (horizontally), as well as through all process levels (vertically). This permits integrated data acquisition, analysis and graphic display in real-time. If acquired data regarding the condition of the system, the processes and the products are analysed and linked to each other, the systems can also be rendered intelligent and self-regulating by means of knowledge-based algorithms.
PaintExpo’s complete exhibition programme covers coating equipment for liquid, powder, UV, immersion and coil processes, paints and enamels for all processes, application systems, spray guns and atomisers, automation and conveyor technology, cleaning and pre-treatment, drying and curing, environmental technology, pneumatics, compressed air supply and exhaust purification, water treatment, recycling and disposal, accessories, masking, measuring and test technology, quality assurance, identification, paint stripping, job-shop coating, services and technical literature.
Further information and a preliminary exhibitor list can be accessed at www.paintexpo.com.
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