Thermography in Plastics Industry
Wide application range of thermal imaging in plastics industry
Thermography allows specific tempering of injection moulds and deep-drawing
Thin plastic films are highly transparent and require special filters for their measurements
Thermal Optimisation of Moulds
Temperature distribution of plastics in injection moulds and for deep-drawing is a critical aspect for the quality of manufactured moulded bodies. Contacting measurements are just as much extensive as the application of pyrometers. In contrast to that, infrared camera systems offer the advantage to provide a complete picture of moulds or moulded bodies’ temperature distribution. However, moulds consist of metal and, therefore, reflect background radiation.
A thermographic analysis is carried out much easily when measuring the moulded body itself. Attention should be paid to the fact that temperature measurement is ensued immediately after opening the mould and before the moulded form has been put out, so that this new product has hardly cooled down. Thus, the temperature of the mould can be indicative of the moulded result’s temperature.
The high frame rate (of up to 60 Hz) of InfraTec’s camera series VarioCAM® high definition ensures a precise thermal image acquisition at the exact point in time. Moreover, due to the integration of stationary infrared camera systems, such as VarioCAM® HD head, into production processes, it is possible to regulate the mould’s temperature in case of temperature deviations.
