COMPARISON OF TENSILE STRENGTH OF FOUNDRY SAND CORES BOUNDED WITH RUBBER SEED OIL AND SOY BEAN OIL SLUDGE

Publication Date : 01/08/2013


Author(s) :

Akor, T, Ariahu, C.C.


Volume/Issue :
Volume 8
,
Issue 2
(08 - 2013)



Abstract :

The paper presents an experimental evaluation of the tensile strength values of baked sand cores bonded with rubber seed oil and soy bean oil sludge (a bye product of soy bean oil production) in terms of their efficacy as core binders in foundry sand using established standard procedures in foundry industry. Edible vegetable oils are widely used in the foundry industry as binders. Their supply is, however, limited due to competing demands by food and cosmetic industries. A search into the use of non-consumable sources of vegetable oils as core oil for use in casting technology necessitated this research. Rubber seed oil displayed superior binding potential for core production than the soy bean oil sludge. Maximum baked strengths of 1829 kN/m2 and 587 kN/m2 were achieved using 3% rubber seed and soy bean oil sludge respectively with 0.5% cassava starch, 7%water and 89.5% silica.


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