Extrusion Characteristics of Alumina Refractory Bodies

TLDR: In this paper, the effectiveness of certain organic binders and the amounts necessary have been examined for the solid extrusion of plasticised alumina as a preliminary step towards preparation of refractory tubes.

Abstract: This investigation deals with the solid extrusion of plasticised alumina as a preliminary step towards preparation of refractory tubes. The effectiveness of certain organic binders, and the amounts necessary have been examined. Sample bars have been prepared from a mix by ram extrusion and some of their physical properties determined. It appears as a result of this study that gum tragacanth is a suitable binder and two per cent would be sufficient for the extrusion of a plasticised mix of alumina fines such as the ones encountered in this investigation.