For the first time in the theory of counterflow heat
exchange there is solved the problem of heating of the
two-dimensional prismatic slug at its heating by convention
current. There are studied the regularities of dynamics of
the (gas) and metal heat carrier temperatures depending
on different parameters.

In the experience there is examined the problem of
clarification of discharge from melting furnaces, there is
being analyzed the existing situation on the most of
Belarussian enterprises and are offered the ways of
solution of this problem, including the measures on
optimization of melting process and modernization of
operating furnaces and also the creation of purification
sistems.

It shows, that the precision alloys are the most important kind of metallurgical pro­duction. The analysis of the freezing process of melt at the two-roll hardening for precision
alloy belts production is given. It is settled, that the creation of linear contact zone at
the elastic flattening of the rolls improves the heat — exchange condition, stabilize the
process of belt formation accounts for the rise of the heat transfer coefficient and the
increasing of melt existence time in the contact zone with the rolls.

It is shown that the stability of process two-cylindrical of the hardening melt on elastic barrels
and the quality of getting ribbons depends on the dynamic stability of circular cylindrical thinness
casings The linear problem of dynamic stability thinness casing in the process its rotation and the
availability of compressible loading is solved. The analytical expression for the calculation of
hollow casing is obtained. The analysis of process oscilation revolving thinness casing is performed. It is determined that the phenomenon of resonance disappears when the coefficient damping δ≥ωo/√2, but the unlinearance of process introduces essential changes in the character
oscillations.