METHOD AND APPARATUS FOR INVESTIGATING PARAMETERS OF MOLTEN MASS Russian patent published in 2014 - IPC G01N11/16 

FIELD: physics.

SUBSTANCE: invention relates to applied physics and particularly to analysis of physical and chemical parameters of metal alloys, particularly based on iron or nickel, by photometric determination of kinematic viscosity v, electrical resistance ρ and density d of a heated sample depending on temperature. The invention can be used in research laboratories, at metallurgical companies and in laboratory work in universities. The method includes measuring temperature dependency of viscosity v, electrical resistance ρ and density d of a molten mass in a defined temperature range to obtain values of the parameters in the form of electrical signals. Values of said parameters, obtained at the same temperature values, are multiplied to obtain values of a multiplicative parameter M_i, which is characterises the molten mass. Said parameter is stored as a specific parameter. Values of said parameters of the same or different molten mass are measured again and multiplied to obtain values of a multiplicative parameter M_i+1. The difference between the multiplicative parameters Δ_M=M_i-M_i+1 is then determined and compared with Δ_Mpor. The apparatus for investigating parameters of a molten mass comprises a system of units for determining temperature dependency of v, ρ and d of the molten mass, having outputs for the values of the parameters. The apparatus includes series-connected multiplier, storage device and subtractor unit; each of the n inputs of the multiplier is connected to the corresponding output of one of the units for determining parameters v, ρ and d of the molten mass.

EFFECT: enabling determination of multiplicative values of temperature dependency of properties of molten mass, easy comparative evaluation of said values, and high reliability and accuracy of measurement results of parameters of molten mass during temperature changes, broader functional capabilities, easy and cheap experiments.

3 cl, 5 dwg