EFFECT OF THE SAND MOULD ADDITIVES ON SOME MECHANICAL PROPERTIES OF CARBON STEEL CK45 CASTS

Abstract

The research targets study of influence of additives on sand mold’s properties and, consequently, onthat of carbon steel CK45 casts produced by three molds. Three materials were selected for additionto sand mix at weight percentages. These are sodium carbonates, glycerin and oat flour. Sand moldsof studied properties were produced to get casts from such molds. The required tests were made tofind the best additives with respect to properties of cast. ANSYS software is used to demonstratethe stresses distribution of each produced materials. It is shown that the mechanical properties ofcasts produced is improved highly with sodium carbonates and is less with oat flour and it is seem afew with glycerin additives. It can be concluded that the sodium carbonates let to get the castproduced with highly mechanical properties.