gwk dynamic cavity temperature control integrat evolution

Ceramic power heaters for highest quality demands

gwk dynamic cavity temperature control integrat evolution

 

While fluid-based solutions are largely used for integral temperature control of the production of high-quality surfaces, inmould ceramic heaters are ideal for local heating or cooling of clearly defined mould segments. They are a reliable, fast and energy-efficient method of preventing visible joint lines. Electrically conductive ceramic materials are beneficial because of their pinpoint precision, immediate action and high capacity. Innovative production methods allow the combination of heat-conducting and thermally insulating layers. Close-to-cavity cooling achieves an even and fast cooling of specific mould segments after completion of the filling phase. The combination of both methods within one system can result in a more efficient, energy-saving mould temperature control with highly dynamic temperature variations.

 

gwk relocated the heating directly into the mould. Only a few millimeters behind the cavity a ceramic high performance resistance heating is installed by means of which fast and energy-saving temperature changes can be realized in combination with close-to-cavity cooling channels. Via a signal of the injection moulding machine the surface is briefly heated up to such a high temperature that an optimum mould filling and an excellent modeling of the cavity wall can be achieved. Immediately after the filling phase the switch-over to the cooling phase is carried out in order to avoid an unnecessary increase of cycle time due to high temperatures. By means of this technology that has been widely used and  proven in everyday practice the temperature changes in the mould are up to 10 times faster than it could be achieved with conventional variotherm mould temperature control systems and in addition a clearly reduced energy consumption can be noticed at the same time.

 

The integrat evolution combines several modules. The integrat 4D technology is applied  for the close-to-cavity arrangement of the temperature control channels in the mould. The circulation water for the mould temperature control is provided by integrat 40 units. The energy-saving individual control of the water quantity per cooling channel for the cooling phase is taken over by the integrat direct. The integrat process control is responsible for the communication and control between the heating and cooling elements. The complete system is installed in a rack on a small footprint of only 60 x 60 cm. Energy and cooling water supply are realized via common central connections.

 

Ideal applications are high-gloss surfaces in the automotive and consumer goods sector as well as in telecommunications. Also thick-walled moulded parts for optical applications can be produced more efficiently than before.

The temperature control system integrat evolution is presented by means of a practical demonstrator installation. An exhibition with moulded parts of successful applications completes the presentation of this highly innovative technology.

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