Investigation of Fori natural sand as foundry moulding material

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Leonardo Electronic Journal of Practice

AUTHORS:

Mbimda Ali MBISHIDA, Aje TOKAN, Samuel Audu SETH, Yakubu ISHENI.

ABSTRACT

An investigation into the application of Fori natural sand as foundry moulding material was conducted. Chemical analysis, sieve analysis, refractoriness and clay content test of the sand was conducted. The samples were tested for mouldability, shatter index, dry and green compressive strength and permeability with different moisture content of 4.7%, 3.6%, 2.8%, 2.2% and 1.9%. The research indicated that the moulding sand have 68.98% silica contain, sub-angular grain shape, a refractoriness value of 13700C, a clay content of 19.2% and a satisfactory green compressive strength of 57.26KN/m2 at moisture content less than 3%. This makes it suitable for a wide range of casting of some metals and its alloys such as light steel, bronze, brass and aluminium in accordance to AFS standard.

Keywords

Foundry; Moulding; Permeability; Refractoriness; Clay Content; Moisture; Green Compressive Strength

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