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CONTROL METHOD OF MELTING PROCESS IN ELECTRIC-ARC FURNACE, AND SIGNAL PROCESSING DEVICE, PROGRAMME CODE AND DATA CARRIER FOR IMPLEMENTATION OF THAT METHODFIELD: metallurgy.;SUBSTANCE: according to the proposed method, sound signals or vibrations are determined by means of casing-type sound sensors (...
After a time period of 30 minutes, the calcined powders were removed from the furnace and allowed to cool for one (1) hour under ambient conditions. Thus, Examples 4 and 5 correspond to the silica in Examples 2 and 3 calcined at 400°C, respectively. The median particle diameter of ...