Extrusion Asia Edition 1-2021

tion on the screen, is kept constant, so that the line can always be operated in the optimum range. This is achieved by the rotating movement of the filter disk, with which the screens are transported through the melt chan- nel. A control system ensures that the screen contamination re- mains constant. As soon as the contamination load varies, the control system reacts automatically and changes the rotational speed of the filter disk. The pressure across the system thus re- mains constant. The only non-constant variable in the filtration process is the rotational speed of the filter disk. This makes the Rotary Technology the ideal solution for the in- creased use of reclaim or recycled material. Gneuss Melt Filtra- tion Systems can be easily integrated into an existing process and are perfectly suited as a retrofit solution. The self-sufficient control system monitors the filtration process in conjunction with the production line. Advantages of Gneuss Filtration Systems for recycling applications The Gneuss Filtration Systems have been developed for de- manding recycling applications and have been used successful- ly for decades. All filters from Gneuss work with the proven Ro- tary Technology, which offers the following advantages: 25 Extrusion Asia Edition 1/2021 管材挤出 • No interruption or disturbance of the production process caused by the filter operation • Pressure-constant production, free from pressure spikes • Automatic and safe operation with minimal operating effort • Application-specific and rheologically optimised melt chan- nel for short melt residence times, melt channel design free from dead spots and fast product changes • Disturbance-free processing even of sensitive plastics • Consistently high quality of the end product • Simple and safe filter element replacement • Efficient cleaning of the filter elements thanks to the fully automatic back-flushing Filtration System Type RSFgenius • Screens made of multi-layer stainless steel mesh, which allows finenesses down to 10 µm in recycling applications • For more than 35 years successful use in film, sheet and fiber production, compounding, PVC and other demanding appli- cations ➠ Gneuss Kunststofftechnik GmbH Mönichhusen 42, 32549 Bad Oeynhausen, Germany www.gneuss.com Sica的“绿色机器”为可持续发展的世界做出了 贡献。 实际上，公司在研发方面的投入是为 了开发出一种设备，能够降低加工成本、减少 能源和材料的消耗以及避免塑料粉尘并回收切 屑，确保清洁安全环境。 Sica是如何做到 的？ Sica contributes to a sustainable world with its “green machines”. In fact, its investments in re- search and development are geared to machines that reduce process costs, reduce energy and ma- terial consumption and avoid plastic dust and chips recycling, assuring a clean and safe envi- ronment. How did Sica do it? 环保型管材切割设备降低了生产成本 Pipe Extrusion: Cut pipes, Cut costs – Go Green