Study of properties of slag melts for grounding compositions of welding fluxes. Part II. thermodynamic characteristics

摘要

The method of isoperibolic calorimetry was used for assessment of the energy state (heat content, enthalpy, slag forming enthalpy) of slags of MnO-SiO{sub}2-Me{sub}xO{sub}y (CaO, Al{sub}2O{sub}3, TiO{sub}2) system and of welding fluxes of grades AN-348A, AN-60, ANTs-1, AN-26S, AN-47, AN-67A at 1923 K. Proceeding from the experimental data on heat of mixture, the values of activity of manganese oxide and silicon dioxide have been determined in MnO-SiO{sub}2 system, as well as in the slags on this base.