Temperature regulator with LCD display EcoTemp

thermoelectric

Variotherm temperature control, i.e. a systematically gradated mould temperature over cycle time, provides a variety of benefits for the process, the part surface and strength as well as for the economic efficiency. The temperature of the pre-heated cavity wall rises as the hot polymer melt is injected into the mould. Mould cooling begins after the cavity has been filled. Only then is the part temperature reduced to the level required for demoulding. Benefits of variotherm temperature control vs. conventional mould temperature control: Longer holding pressure even in areas away from the gate Requires less injection pressure and clamping force Reduces internal stress during injection compression moulding of optical parts More accurate reproduction of surface details of micro- or nanostructures, surfaces with piano finish Better reproduction of surface effects such as self-cleaning or anti-reflection effects Ensures a more homogenous orientation of glass fibres in technical components Increases the welding time for melt fronts and reduces the occurrence of weld lines Less risk of warpage caused by shrinkage Better dimensional stability and shot-by-shot consistency Does not require any changes to the mould construction Optimised cycle times due to lower-temperature cooling