Smart Molding International 2-2021
machinery 31 www.smart-molding.com the non-operator side in an L-connec - tion. The CX has a large daylight, even in standardmodels. Based on themodular design, the daylight has been enlarged by an additional 200 millimeters. This also provides easy access to the non- operator side, despite the L-injection unit. The mold clamping platens have also been widened and the maximum mold installation height has been like - wise expanded. The parts removal takes place after separating the sprue in the lengthwise direction downstreamof the machine. However, thanks to the can - tilever clamping unit, it would also be possible to attach a conveyor belt below the clamping unit bed. Minimal standard deviation for part weight By the time the low-viscosity LSR flows into the evacuated cavity, the corresponding dye pigments have been added to it earlier in the mixing block. This is always a tricky matter in the reactive process, if for no other reason than that the silicone individual components are generally also subject to significant batch fluctuations. If too much dye is added, decreased viscosity of the material – which is already like water – is the result, and along with it the possibility of overmolding. With APC plus, every part is a good part For a two-component part made of thermoplastic and silicone – for which even the counter-rotating tem - perature control in the plasticizing unit and mold is complex – the APC plus machine function from KraussMaffei provides particular benefits. Based on the measuredmelt viscosity and stored material parameters, such as compres - sion, it controls the shot weight in each and every cycle. This is done by adapt - ing the changeover point and the hold - ing pressure level. For silicones that expand in the cavity, the focus is on the changeover point. APC plus makes even the thermoplastic preforms ex - tremely weight-constant, providing the basis for perfect multicomponent articles. APC plus for non-thermoplastics then controls the challenging silicone process. The finer the structures to be mapped, the tighter the tolerance band that can be selected. Once ma - chine, mold and peripherals have been tuned to each other optimally, the user generates a reference shot (or multiple shots) and stores it in the mold data record. The TePe EasyPick shows how useful the bond of thermoplastic and silicone can be. Rugged support element and soft layer that is gentle on the gums: With the KraussMaffei SilcoSet, nothing gets in the way of a brilliant smile. KraussMaffei www.kraussmaffei.com An insight into manufacturing at TePe Ready for production quickly: The CX system at TePe Advantages of the SilcoSet technology: • Safe, stable processing of low-vis - cosity material thanks to absolute platen parallelism • Exact shot weight consistency even with 256 cavities • Consistently high component qual - ity and thus minimum scrap thanks to APC plus • Absolute transparency throughout the process thanks to digital solu - tions • Easy changeover from thermoplas - tic processing to silicone processing
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