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Self-Conducting Polyamide Sports Glasses

SpecialChem / Oct 27, 2010

The Institute of Plastics Processing (IKV) is presenting an innovative pair of self-conducting sports eyeglasses at K2010 (hall 14/C16), using 'hybrid multi-component injection molding process'. The amorphous polyamide from Evonik makes the structure of the eyeglass (through-colored Trogamid 7323 for lens and CX 9704 grade for frame). Possibility of condensation is nil since the conductor track constantly heats the lens, without troubling the wearer. The conductor track is geometrically designed in such a way that it can easily come in contact with the inserts and metal components; electricity flow is managed by heat discharge.

Low-melt metal alloy is processed into a K-Tec 200 S/2F injection molding. Babyplast add-on injection unit, originally designed for plastics processing, is customized for processing the low-viscosity metal alloys. Using a three-station index plate mould, the glasses are produced in a compact production cell with single mould and just one machine. The automated process is supported by a six-axis robot. Gripper used with the robot guarantees a reliable insertion of contactable inserts and removal of the finished glasses.

This innovation is a combined effort from: IKV; Evonik Industries AG; Ferromatik Milacron (K-Tec 200 S/2F injection molding machine); Christmann Kunststofftechnik (Babyplast add-on injection unit); Gebr. Krallmann, Hiddenhausen and HASCO Hasenclever (three-station index plate mould); Gesellschaft Wärme Kältetechnik (variothermal temperature control system); Koch GmbH (KKT 55 drying and conveying system); KUKA Roboter (six-axis robot, model KR5 arc); ASS Maschinenbau (gripper) – all from Germany, and Switzerland-based Kistler Instrumente AG, Winterthur (sensor technology).

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