Potentials of Elaeis guineensis and Pinus sylvestris as binders on foundry core strength

作者：Fayomi O S I^*; Abdulwahab M; Popoola A P I

来源：Journal of Scientific & Industrial Research, 2014, 73(3): 173-176.

• Elaeis guineensis
• Pinus Sylvestris
• sand grains
• foundry cores
• baking temperatures

The potential of foundry sand core binders made with palm oil (Elaeis guineensis) and pine oil (Pinus sylvestris) were investigated. Core specimens made with Ota silica base sand bonded with percentage of cassava starch in admixed proportion of Elaeis guineensis and Pinus sylvestris were tested for tensile, compressive strength, permeability and time of collapse to establish the binder's efficiency. Tensile strength of the green baked core were oven baked at 50 degrees C, 100 degrees C 150 degrees C and 200 degrees C; cooled to room temperature and tested with universal strength machine. The combined evaluation Of the oils at higher percentages of starch addition indicates a significant improvement on the foundry properties. The cylindrically shaped permeability specimens were tested with permeability meter. Study revealed that cores baked at 150 degrees C for palm oil attained a a significant strength at lower baking periods than others. Pine oil showed an improve properties at 6% cassava starch at 200 degrees C.

• 出版日期2014-3