Controller of viscosity melts agglomerated welding flux by based formation refractory of compounds

Abstract

The study of structure of MgO—Al₂O₃—SiO₂—CaF₂ slag system agglomerated flux in solid and molten state was made by X-ray and electron-optical methods. It was defined that at flux heating to temperatures higher of 800 ^oС the solid spinel phase of Mg Al₂O₄ was created. The temperature of melting of Mg Al₂O₄ is 2105 ^oС. It presents in liquid melts at temperatures higher 1200 ^oС. There was determined connection between a presence of solid spinel phase in slag melt and temperature’s dependence of viscosity. The method of controlling of technological and metallurgical properties of welding fluxes by the changing in liquid slag melts of maintenance of solid chemical compounds, their composition, form and degree of dispersion.