Properties of Sodium Silicate-Bonded Molding Sands With L-D Converter Slag Powder

摘要

The general properties of sodium silicate-bonded sands mixed with the L-D converter (Linz and Donawitz Converter, Austria) slag powder to form a hardener, were investigated. Four to nine percent sodium silicate and 2-5/100 L-D converter slag powder, on the basis of silica sand, were mixed, and the compressive strength, surface stability index (SSI), bench time, residual moisture and retained strength of the standard sand specimens were measured. The properties were similar to those of general inorganic bonded self-setting molds.