Energy Disequilibrium Effects in Heat Treatment Equipment

Abstract

The differences found between heat fluxes in different areas of the heat treatment equipment workspace, due to energy disequilibrium or due to improper positioning of loading, can cause non-uniform temperatures and heat stress distributions which will impair the quality of heat processing. In industrial practices, the unilateral heating is often requested for heat processing of certain products and, as a consequence, the heating rate represents a key factor which has to be known and controlled in order to avoid the possible disequilibrium occurring in the distribution of heat stresses. The paper aims to assess by calculation of asymmetric heating effects of heat treated products occurring by improper operation of heat treatment equipment or by improper positioning of loading in the heat treatment equipment workspace.

Keywords

• asymmetric heating
• virtual (fictive) product
• temperatures distribution
• heat stress distribution