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Sustainability, one of the most important aspects of every production plant, can be enhanced through retrofitting. In this paper, retrofitting of two furnaces for metal heat treatment, namely vacuum furnace and conveyor belt furnace with protective atmosphere, are presented. The goal of the revitalization of the furnaces is modernization through th...
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... controller, which, in addition to its simple structure, also meets the strictest control criteria. For chosen controller parameters, the system was stable and satisfactorily managed to eliminate the disturbances. Trend diagram during the heating process in the heating chamber for desired heating curves satisfactory control results are achieved, Fig. 5. ...