LABORATORY REPORT ON THE DETERMINATION OF THE MOISTURE AND CLAY CONTENT OF GREEN SAND

The quality of castings in a green sand mould is influenced significantly by its properties, such as green compression strength, permeability, mould hardness, and others, which depend on input parameters. The relationships of these properties with the input parameters, like sand grain size and shape, binder, water, clay, etc. are complex in nature.

The goal of this paper is to determine the green sand mould compressive strength in case of input parameters.

A good moulding sand however, must possess the following properties. The properties are determined by the amount of clay, moisture content and by the shape and size of the silica grain in the sand;

PERMEABILITY

COHESIVENESS OR STRENGTH

ADHESIVENESS

PLASTICITY

REFRACTORINESS

BINDING

CHEMICAL RESISTIVITY

FLOWBILITY

However, all this properties at the end of the experiment were achieved as a result of taken important consideration to controlling the amount of clay and moisture content of the sand during sand preparation.