UDC 669.187:541.123
А.V. Kharchenko (1), associate professor, c.t.s.
R.V. Sinyakov (2), heat of department, c.t.s.

PHYSICAL AND CHEMICAL CONFORMITIES TO LAW FOR FORMING OF
NONMETALLICS IN STEEL

(1) Zaporozhe state engineering academy
(2) Technological company «Mines of Tsin », Peking (CPR)

On the basis of Gibbs method for chemical potentials thermodynamics correlations
are got, describing an origin and increase of nonmetallic in steel. Conformities to law of
change of mass and chemical composition of nonmetallic in liquid steel at its cooling are
certain. Methods over of determination of critical size of nonmetallic are brought.
Possibility of formation of the heterogeneous including with a refractory kernel, saturated
by the oxides of alkalite-earch metals, and fusible homogeneous shell is shown.

PHYSICAL AND CHEMICAL CONFORMITIES TO LAW FOR FORMING OF
NONMETALLICS IN STEEL