Efficiency potentials fully exploited – Schwertberg, Austria – September 2018
Liquid silicone rubber (LSR) can be processed efficiently in injection moulding and also scores with excellent material resistance. LSR is therefore becoming increasingly important as a material for optical lenses.
At Fakuma 2018, from October 16 to 20 in Friedrichshafen, Germany, system partners ENGEL, ACH-Solution and Dow Silicones will be presenting, for the first time in Europe, an integrated solution for cost-effective production of LED lenses with a highly demanding geometry.
At the Dow Silicones (Wiesbaden, Germany) stand in Hall B2, Stand 2220, lenses for LED headlamps will be produced on a tie-bar-less ENGEL e-victory 310/120 injection moulding machine, with an integrated ENGEL viper 40 linear robot, in a two-cavity cold runner mould by ACH-Solution (Fischlham, Austria).
The lenses are representative of a wide range of applications. Apart from the automotive industry, LSR is becoming increasingly important for building and street lighting. The reason for this is the material characteristics. Highly transparent grades for optical applications have a lower yellowing index than conventional thermoplastic lens materials. They are extremely resistant to environmental influences such as UV radiation and can be used over a wide temperature range from -40 to +200 °C. In addition, they allow particularly flexible design.
DOWSIL MS-1002 Mouldable Silicone will be processed at Fakuma; it creates smooth and very hard surfaces much like thermoplastics. The headlamp lenses, with their extremely filigree structure, are moulded with highest reproducibility. The lenses leaving the production cell are ready for installation.
Compact and high-precision
Not only by the complex part geometry, the production of LED lenses places high demands on the processing technology. In general, to be profitable in the production of high-tech products made of LSR, the process must be automated and the product must be rework-free.
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ENGEL at Fakuma 2018 :
Hall A5, Stand 5204
Dow Silicones at Fakuma 2018 :
Hall B2, Stand 2220