Temperature Control System - integrat 80

Dynamic mould temperature control is a temperature control method that allows temperature variations within the cycle and is also known as “variotherm temperature control”. While this method has been known for almost forty years, it has only undergone a dynamic development in the last few years. This is due to the increasingly exacting quality requirements of consumers (e.g. prevention of visible joint-lines, gloss variations and other surface defects) and the use of plastic materials in new applications. When a temperature control system is selected it is important to mind that it matches exactly with the application and that the economic benefit justifies the technical efforts as well as the energy consumption.

MULTI-ZONE TEMPERATURE CONTROL- AND MONITORING SYSTEM WITH NON-CONTACT FLOW MEASUREMENT. Due to the design, dimensioning and selection of the used components, enersave temperature control systems are the most efficient systems on the market with the highest flow rates at operating point. By using the frequency inverter, the already high basic efficiency is optimized and the pump characteristic curve will be optimally adapted to the respective operating conditions. The flow measurement of the individual temperature zones is carried out using noncontact measurement technology according to the ultrasonic principle.

The multiple water quantity control system in modular design that is available in several versions fulfils not less than three requirements at the same time. It combines the advantages of the conventional water distributors, the impulse cooling systems and the continuously operating temperature control units while eliminating the disadvantages of each of these systems. The temperature control system disposes of up to 128 individually adjustable circuits and is suitable for the processing of polyolefins and technical thermoplastic materials. In case of the basic execution (itd B) the requested flow rate is adjusted manually and is then monitored by a flow meter and presented digitally and graphically on the central display of the control unit. In the standard execution (itd R) the water quantity is individually set for each circuit at the central operating unit and - if necessary - is readjusted automatically via a water quantity regulation valve within adjustable limit values.

Brand-new perspectives and possibilities are offered by the dynamic temperature control with CO2. This new and environmentfriendly procedure really provides a solution for heating and cooling of complex and thinwalled moulded parts. By using gaseous media for heating and cooling processes, soiled cooling channels are now a thing of the past. Basically it is true that gaseous media have the disadvantage to be bad heat carriers. This applies at least to air that is only used for cooling processes under special circumstances. But in contrast, if the opportunities of CO2 are exhausted properly, it offers an interesting alternative to conventional water temperature control.