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Designed for transferring technology to customers

Demonstration facility installed for processing Tepex using hybrid molding

  • Customer training, material development and quality improvement
  • Demonstration cell for near-series processes

LANXESS subsidiary Bond-Laminates GmbH has taken into operation a demonstration cell for processing Tepex continuous-fiber-reinforced thermoplastic composites at the Brilon site. This enables Tepex to be both formed in a fully automated, near-series process and also simultaneously formed and overmolded in a hybrid molding process. “We plan to use the facility as a platform for transferring technology to customers. We want to familiarize our customers with the strengths of Tepex and how it is processed, as well as supporting the development of innovative components,” explains Ulrich Jecmeniza, applications engineer with Bond-Laminates. In addition, production processes of Tepex processors are to be simulated for quality assurance and improvement purposes. Not least, Bond-Laminates aims to use the facility to drive forward its own material development. This new demonstration cell supplements a Technical Service Center facility that LANXESS already operates at the Dormagen site.

State-of-the-art technology

The cell is manufactured by ENGEL AUSTRIA GmbH. The Tepex inserts are introduced to the machine using a magazine with separation function, so that various Tepex sections can be processed in a single production run. A highlight of the facility is two pyrometrically controlled infrared furnaces with a “drawer system” that have been newly developed by ENGEL. These enable the inserts to be heated quickly in an even, material-specific way, without causing any damage to the thermoplastic matrix of Tepex. An ENGEL easix six-axis articulated arm robot with vacuum grippers adapted to Tepex takes over the handling of the inserts. “The high speed involved in heating and handling the inserts ensures a high degree of reproducibility for the entire production process, even for very thin-walled components,” says Jecmeniza. The injection molding facility in which the Tepex inserts are shaped and overmolded has a clamping force of 130 metric tons. The maximum projected size for the molded parts is 330 x 280 millimeters, which means that both structural and visible parts in these dimensions can easily be processed. Heat management in the mold can be either isothermal or variothermal as required. Variothermal mold temperature control results in distortion-free, high-gloss surfaces. The facility is also equipped with a clamping system and associated grippers for inserts with standardized section sizes. These kinds of sections are used to manufacture the specimens needed for testing to standard requirements in material development or shaping experiments, for example. “The inclusion of both a clamping and a magazine system makes our demonstration cell very flexible and versatile, enabling it to cover a broad range of applications,” says Jecmeniza.

Several molds for near-series prototype components

The new facility will initially be fitted with a mold for the sports goods industry. The relevant component consists of a Tepex section with TPU matrix that is overmolded with TPU on both sides after shaping. Other near-series molds will soon be available. Jecmeniza: “This will enable us to cover applications for our most important customer groups – that is to say the automobile, consumer electronics and sports goods industries.”

Hybrid molding process on the up

The hybrid molding process is arousing considerable interest worldwide because it enables the cost-effective production of very lightweight, but still immensely strong structural components in large to extremely large volumes. Numerous international manufacturers of plastics machines have therefore now developed appropriate production plants and presented these at trade fairs – as was recently seen at IPF 2014 in Tokyo. The innovative lightweight construction process will also be the focus of exhibits by various machinery providers at NPE (March 23 – 27, 2015) in Orlando, United States, and Koplas (March 10 – 14, 2015) in Seoul, South Korea. Manufacturers of other components in the hybrid molding process – such as furnaces, fully automated handling systems, testing technology or molds – are also hard at work, which opens up a wide range of possibilities for processors when they are selecting equipment.

LANXESS is a leading specialty chemicals company with sales of EUR 8.3 billion in 2013 and about 16,700 employees in 29 countries. The company is currently represented at 52 production sites worldwide. The core business of LANXESS is the development, manufacturing and marketing of plastics, rubber, intermediates and specialty chemicals. LANXESS is a member of the leading sustainability indices Dow Jones Sustainability Index (DJSI World and DJSI Europe) and FTSE4Good.


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