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Improving the Properties of Arthma Sand for Using In the Sand Moulding | ||
| Engineering and Technology Journal | ||
| Volume 24, Issue 8, August 2005, Pages 318-328 PDF (1 M) | ||
| DOI: 10.30684/etj.24.8A.1 | ||
| Authors | ||
| فلك اسامه عباس; فائزه علي سمير; نوال عزت | ||
| Abstract | ||
| The aim of the present research is to improve properties of Arthma sand through the addition of different materials for using it in sand casting processes. After preparing the master mixture from (Arthma sand, 5% Bentonite, 5% water), then we add different percents ranging between (2-8)% of the added maters which were phenol, phenol with Boric acid, Alumina and the Coal (charcoal) to the (master mixture, then the mixing operation was done at the rate of (300) rev/min for (2 min), compressive strength and permeability were made to the standard specimen and results show: The addition of each of alumina, charcoal, phenol, and (phenol Boric acid) causes an increase in both wet and dry compressive strength of sand specimen. The addition of each of charcoal, phenol, and (phenol Boric acid) causes decrease in molding sand mixture permeability. | ||
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