Study of heat transfer through layers of casting flux: experiments with a laboratory set-up simulating the conditions in continuous casting

Abstract

The heat transfer through layers of casting flux has been studied with a laboratory set-up which consists of a water-cooled heat flux probe made of copper and an electrically heated steel plate with a trough to hold the flux sample. The measured heat flux density values were converted to system conductivities ksys which contain the radiation/conduction conductivity in the flux layer and the contact resistance at the probe side. It was found that ksys is almost independent from the layer thickness. Ten commercial casting fluxes were investigated and the data for ksys are given as functions of composition and strand surface temperature.