71. Heat Treatment Congress provides innovative insights into the field of heat treating
In this year’s Heat Treatment Congress, 28th to 30th October 2015 in Cologne (Germany), the process chain influences and innovations in the field of heat treating appears as key aspect on the agenda. In the attendant trade exhibition of the largest trade congress for heat treating in Europe, the German manufacturer DIAS Infrared GmbH provides system solutions with digital pyrometers that can be specifically used for induction heating.
The induction heating process is primarily used for difficult formed workpieces, parts or for the partial hardening of certain parts of a workpiece. One of the most important parameters in the process of induction heating regarding quality and controllability of the process is the exact temperature. The required product features can only be guaranteed with an exact temperature trend.
This is performed by the robust, fixed pyrometers of the PYROSPOT series made by DIAS by extra small measurement spots that detect exactly the workpieces between the trends of the inductor coil. A high-precision measurement of this hardening process and a complete documentation of the surface temperature of every single part for the quality management can be achieved in this way.
In addition, the signal output of the pyrometer, that has a very fast response time, serves also for the control of the very fast heating process. LED or laser aiming light, through-lens sighting or a color video module realize the precise alignment on very small measurement spots.
Depending on the process and the measurement task a pyrometer with fiber optic cable can be a suitable solution. Though the optical head as well as the fiber optic cable have no electronic components, they can be installed much closed to the inductor. An interference caused by electromagnetic fields is excluded in this way. The modular cross linking of multiple devices in a bus system is provided by a digital online interface (Modbus RTU) that exists next to the default measurement output in different pyrometers of the series.