Thermal condition of cohesion in a two-layer roll of a rolling mill

Анотація

A condition of heat exchange between the layers
having different thermalphysic properties in a two-layer
cylindrical roll of a rolling mill is analyzed foe an ideal thermal
contact. It can be realized with application of the condition of
heat balance of one of the layers in the cylindrical area for a
homogeneous equation of heat conductivity. Analyzed was a
simplified target setting in the radial section with a supposition,
regarding an averaged in radius temperature distribution in the
outer layer. By applying the condition of the thermal balance and
by integrating the homogeneous equation of heat conductivity in
the two-layer area a condition of cohesion of an impedance type
in case of an ideal thermal contact between the layers was
constructed.