Steel production and processing are accompanied by numerous thermal processes. For quality assurance purposes, the temperatures of the steel itself are recorded and evaluated during production.
Careful attention must also be paid to the tools and equipment needed for production, including the cranes used to transport the ladles of pig iron. The crane ropes are exposed to great heat when filling the converter (charging). If the ropes become thermally overloaded and simultaneously subjected to strong mechanical stress, they can break, causing molten steel to leak into the production hall. In order to reliably eliminate the likelihood of such a disastrous scenario, a thermographic camera provides a continuous real time temperature measurement and threshold alarming. This allows the reliable early detection of weak points through non-contact monitoring of the temperature of the crane ropes.
Requirements for a thermographic system are very high in this environment. Thermal anomalies must be detected from a great distance despite dust and steam on the very small structures of the rope. Furthermore, the ropes themselves are in front of a hot background.