Extrusion International 1-2019

31 Extrusion International 1/2019 Hall A6, Stand 654 The ICE Anniversary Award winner in the category “Industry 4.0” is not restingonhis laurels from2017. Themeasurement tool ED presented in 2017, which sends data in real time via Bluetooth ® directly from inside the roller to an appropriate recipient (iPad, iPhone, via PC dongle to the SPS or via Eth- ernet directly to the server), is a product which is ready for series production today. The ED 1, with which the temperature inside the roller can be monitored, has now been supplemented with the ED 2, which measures and monitors the working pressure on the inlet and outlet of the roller. With the free IOS app “DERICHS Monitor”, data can be dis- played and especially stored for a long period of time. Once it is programmed correctly, the user can detect deviations in target temperature and target pressure at first glance as quickly as the hugely important differential value between inlet and outlet. The demand for the product is great also across sectors, and already 40%have been sold from the initial batch since Sep- tember 2018. Looking ahead: Next innovation is already born Being innovative like the Krefeld/Germany, ladies, they are already startinganewdevelopment. In cooperationwith the Technical University of Clausthal/Germany they are develop- ing a contactless inline roller cleaning system. “When our clients ask us for solutions, we feel challenged”, Managing Director Stephanie Holzmann says. “When you are always curious and able to look and listen beyond your own nose, this often creates fantastic symbioses”. “Almost any filmmanufacturer will be familiar with the issue of roller surface cleaning”, Managing Director Maria Barth- els states. “Many companies have extremely high downtime costs because the process must frequently be stopped and the rollers must be cleaned by hand. Of course there are dif- ferent cleaning systems, but – as many of our clients report – manual cleaning cannot be avoided and is still used.” Aside from downtime costs for plant shut-downs, occupa- tional safety is also a big problem inmany companies. “Clean” cooperation Thework group around Prof. Dr. WolfgangMaus-Friedrichs, who works on surfaces and plasma applications at the Insti- tute for Energy Research and Physical Technologies, Techni- cal University of Clausthal, has developed some very special electronics. These electronics control a modern plasma. “We use modern dielectric barrier discharges, in which transient plasma discharges are ignited with very short AC voltage pulses. This generates a multitude of highly reactive species in these plasmas. With these species, organic contaminants can be broken down with reactions into gaseous compo- nents such as CO 2 and H 2 O and be emitted into the ambient air in a safe and eco-friendly manner. The cleaning effect is highly efficient and scientifically proven. For sizes required for roll applications, DBD’s are easier and safer to handle than e.g. Corona plasmas. Compared to only point-acting corona plasmas, the DBD plasma also offers a flat and very homogeneous treatment option. Direct treat- ment in DBD plasma also sediments fewer by-products, es- pecially ozone. The few that can arise is vacuumed in a con- trolledmanner. Thus, the negative influence of ozone to the hard chrome layer of the roll surface is eliminated. Derichs is now developing a gadget which can be placed as an angular segment on the area of the roller(s) which is not wrapped by the film, and with which this highly technologi- cal plasmawill clean the roller surface ina controlledmanner. The challenge here is to take into account the requirements of production and environmental parameters as well as the requirements that the plasma needs for an ignition. Fitted with different sensors, this gadget later monitors the roller from the outside. “We envisage that, along with our own function control, we canmonitor the cleaning effect, the de- gree of contamination and – as a side benefit, so to speak – the surface temperature of the roller; so the Krefeld ladies mention unison. First presentation planned At ICE Europe 2019 in March in Munich, Derichs will be pre- senting the first results of this development. Interested visi- tors are invited to convince themselves of the exciting ideas of the two ladies. Stephanie Holzmann predicts: „It will defi- nitely be ‚high-tension’!“ DERICHS GmbH www.derichs-gmbh.de Derichs at ICE Europe 2019 “High-Voltage” Development