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Mould
characteristics of Azare foundry sand
Tokan*1, A., Adelemoni2, E. A. A and Datau2
S.G.
1Department
of Mechanical Engineering
Abubakar Tafawa Balewa University, Bauchi, Nigeria
2Department
of Mechanical Engineering Technology
Federal Polytechnic, Bauchi, Nigeria
ABSTRACT
This paper investigates the mould characteristics of Azare foundry
sand such as moisture content, bulk density, flowability,
permeability, shatter index, green strengths, dry strengths, hot
strengths, thermal linear expansion and refractoriness. A thorough
review of literature was made and comparison made between the
existing values and values obtained experimentally. Based on the
experimental results, Azare foundry sand is essentially very good
for non-ferrous foundries. Also, based on the closeness of the
characteristics of the Azare foundry sand to the existing
characteristics of foundry sand used in cast iron foundries,
practical trials carried out on a small cast iron casting (crusher
bearing-housing) showed an excellent surface finish. |
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