Investigation of Molding Characteristics of Acacia Gum Arabic Grade 1 for Making Green Sand Cores

Authors

  • Zhengwuvi L. B.  Department of Mechanical Engineering, Modibbo Adama University of Technology, Yola, Adamawa State, Nigeria
  • Hassan M. A.  Department of Mechanical Engineering, Modibbo Adama University of Technology, Yola, Adamawa State, Nigeria
  • Godi N. Y.  Department of Mechanical Engineering, Modibbo Adama University of Technology, Yola, Adamawa State, Nigeria
  • Dasin D. Y.  Department of Mechanical Engineering, Modibbo Adama University of Technology, Yola, Adamawa State, Nigeria

Keywords:

Acacia Gum Arabic, Characteristics, Green Sand Cores, Investigation, Moulding

Abstract

Investigation of moulding characteristics of Acacia gum arabic grade 1 was carried out. On addition of 0.50-2.50% Acacia gum arabic, the green moulding characteristics such as compression, shear strength, shatter index, compactability, bulk density, permeability number and flowability are in the range of 36.40-53.90 kPa, 0-9.80 kPa, 13.90-38.50%, 20.00-32.00%, 1300.00-1360.00 kg/m3, 112.00-80.00 and 96.60-74.50% respectively. The moulding characteristics show that the compression and shear strengths, shatter index, bulk density and compactability increased with percentage addition of acacia gum arabic, while the permeability number and flowability decreased with percentage addition of the gum. The moulding characteristics of the gum were found to be within accepted standard sand core characteristics. To validate the results, cores were produced with 2% gum arabic and used to produce simple bushings. It was observed that the sand cores were strong enough to withstand the molten metal pressure; they maintained location and collapsed only after molten metal solidification. The bushings were seen to be sound. Thus, acacia gum arabic grade 1 can be used as a binder in green sand core making for non-ferrous metal castings.

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2017-10-31

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Volume 3, Issue 6, September-October-2017

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Research Articles

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[1]
Zhengwuvi L. B., Hassan M. A., Godi N. Y., Dasin D. Y., " Investigation of Molding Characteristics of Acacia Gum Arabic Grade 1 for Making Green Sand Cores, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 6, pp.135-141, September-October-2017.