HOT RUNNERS | TECHNOLOGY
SiSE offers the MV3 series in six sizes for use in many types of applications where a low to high number of zones need to be controlled. Standard features include two adjustable setpoint values, a display of percentage power and load current per zone (by Amps), and a high and low alarm that is adjustable per zone. Electrical data from the mould can be saved for analysis to improve performance. Advanced functions include real-time mould surveillance for deviations in electrical data, zone slaving, and deferred start time programming. A power-saving function with power limitations delivers energy efficiencies.
Thermal control SiSE’s GC product line for sequential valve gate control incorporates new Statistical Process Control acquisition features to measure process perfor- mance and drift, using indicators with mono or multivariate management of machine signals and mould sensors. The new GC line offers traceability of the process, whereby the user can save or send data to various users. Thermoplay discussed several design updates to its TH series of sliding nozzles for processing
general-purpose resins at the Fakuma 2023 show. Bruno Rauchenstein, Area Sales Manager for Switzerland, says heating for the series is improved with a redesigned, easy-to-maintain thermocouple positioned inside the heater, which prevents damage to the thermocouple. In addition, a new mounting head design provides a better thermal condition and heat transfer to the nozzle body. The improved performance of the heater technology brings about energy savings. Heater replacement takes place at the front of the mould, from the cavity plate. Thermoplay also updated several thermal gate and valve gate designs for improved performance. Its 1PK thermal gate for packaging applications now has a cylinder with an outer diameter that is 10% smaller than prior designs. The tip can be used with the TH18-TH24 nozzles to process a range of materials including neat and glass-rein- forced polyolefins, semi-crystalline and amorphous materials and PA or PC blends. The updated design delivers an ample processing window to handle the wide range of materials, as well as excellent wear resistance, short colour changes and the ability to produce a cosmetic gate.
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