INVESTIGATION OF FOUNDRY PROPERTIES OF OSHOGBO AND SAKI SILICA SAND DEPOSITS
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Date
2013
Authors
Ayoola, W.A.
Oyetunji, A.
Adeosun, S.O.
Sekunowo, O.I.
Bodude, M.O
Journal Title
Journal ISSN
Volume Title
Publisher
DAFFODIL INTERNATIONAL UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY.
Abstract
The quality of moulding sand used in
foundry usually exerts significant influence on cast
properties. It is therefore imperative that the
moulding characteristics of a green sand deposit
are established prior to its application. This work
compares the foundry properties of moulding sand
from River Osun and Saki with a view to
determining their suitability for casting household
utensils. In addition, it also investigated the effect of
termite hill activities on moulding sand. Samples of
the sands were obtained from different locations
within the deposits in Oshogbo and Saki
respectively. AFS sieve analysis was performed on
the sand to obtain 600 µm grain sizes. These
compositions were later mixed in different
proportions and then subjected to green and dry
compression strengths, shatter index, permeability
and moisture content tests. The results obtained
indicated that Oshogbo sand deposit has superior
green and dry compression strengths values of
16.35 kN/m2 and 14.49 kN/m2 over that of Saki
which exhibited 9.3 kN/m2 and 8.3 kN/m2
respectively. The highest permeability of 193
ml/min was demonstrated by Saki compared with 79
ml/min by Oshogbo deposits while the difference in
their moisture contents is insignificant. The shatter
index of 64 % and 72 % was obtained for Oshogbo
and Saki sands respectively. These results
demonstrated the possible utility of both sands for
making of sand casting moulds. However, Oshogbo
deposit is recommended for its higher fraction of
the 600µm grain being the preferred size with
demonstrable foundry sand desired properties.
Description
Keywords
Tempering water, green and dry compression strength, moulding sand.
Citation
Ayoola, W.A.; Oyetunji, A.; Adeosun, S.O.; Sekunowo, O.I.; Bodude, M.O. (2013). INVESTIGATION OF FOUNDRY PROPERTIES OF OSHOGBO AND SAKI SILICA SAND DEPOSITS. DAFFODIL INTERNATIONAL UNIVERSITY JOURNAL OF SCIENCE AND TECHNOLOGY; 8(2): 11-16