Extrusion International 4-2024

32 Extrusion International 4/2024 MEASUREMENT TECHNOLOGY American food safety authorities and global brand owners," says Bin Huang. Over the next few years, Ceville will be investing primarily in the expansion of PET recycling solu - tions. "The EREMA bottle-to-bottle technology is outstanding. We have already used the pellets for bottle- to-fiber and bottle-to-sheet applica- tions in addition to bottle-to-bottle, and the quality has been exception - ally good." The new VACUREMA ® will be added to the machinery at the Dantu site from the end of 2025. Sharing future goals In order to realize its future growth plans, Ceville will continue to rely on the cooperation with ERE- MA, as Bin Huang emphasizes: "Our capacity will increase in the coming years. We want to produce excel- lent rPET, rHDPE and rPP for our cus - tomers, and to achieve this, I intend to further expand our cooperation with EREMA. We are also willing to explore new paths together and consider chemical recycling where mechanical recycling reaches its limits." Ceville is convinced by the technological leadership of the re - cycling machine manufacturer, also because they are jointly developing special applications for the Chinese market. "I trust the people at ER- EMA," Bin Huang continues. "The company's expertise is extraordi- nary and we have a very good busi- ness relationship." EREMA Group Unterfeldstr. 3, 4052 Ansfelden, Austria www.erema.com Quality Assurance Transformation: Radar Technology Is Breaking Barriers toward Sustainability and Automation via Wall Thickness Measurements Radar technologies can help blow molders maintain high quality standards and minimize material and energy consumption. The technologies measure geometries such as wall thickness, distance and diameter of suitable parallel walls. In combination with sensor position data, component properties such as contour and ovality can be derived. Parison measurements provide data on process stability at an early stage. R adar works by emitting electro- magnetic waves; when interact- ing with the plastic walls of a blow- molded product, partially reflected signals return. These returning sig- nals provide valuable data that can be utilized to accurately determine the thickness of hollow plastic bod- ies. Since radar technology operates at a non-ionizing frequency of 154 gigahertz, the usage is safe. There are no specific safety requirements dealing with radar. iNOEX's Warp Gauge sensor and Warp Portable can help offset the skilled-worker shortage and ensure the quality of blow molded parts. Warp Gauge Measures Components and the Parison Workingeither independentlyor in combination with a simple kinematic system, radar technology can be used to do fully automatic measure - ments of blow-molded parts after demolding. Radar sensors are guid- ed perpendicularly to the part sur - face and, depending on the sensor’s measurement frequency and speed of movement through kinematics, a grid of measuring points is created. The sensor measures distance, wall thickness and sometimes the compo- nent’s diameter. The contour of the component also can be recorded, and conclusions can be made about ovality and distortion. With an accuracy of within 30 microns and a measurement range between 2mm and a maximum that depends on the raw material that is used, the Warp Gauge’s real-time monitoring at up to 8 hertz ensures continuous insights. Meanwhile, the sensor's The Author: Peter Koll, iNOEX GmbH