DEVELOPMENT OF STANDARD SAND RAMMER
Keywords:
rammer, specimen, compressive strength, sand rammer, foundryAbstract
In designing the Standard Sand Rammer, systematic design analysis of the fundamental theories required to make it functional was considered and also the standard specification of the American Foundry Society (AFS) 50mm x Height 50mm as per Metric (Dia. 2" x Height 2" as per AFS.) was taken into consideration. The standard sand specimen is used in various tests including permeability, compressive strength, shear strength, and friability. The sand rammer was designed to avail foundry industries in Nigeria, and small-scale foundries acquire primary foundry equipment to test and control raw materials to improve castings quality. The standard sand rammer was fabricated from locally sourced materials, tested, and found to produce a cylindrical specimen of 50mm by 50mm after three rams. These show similar results compared with an imported rammer.
References
Anegundi, C., Ganagi, A., Tapashetti, C. (2014): Automatic pneumatic ramming machine. – International Journal of Mechanical and Production Engineering 2(9): 60-62.
Avallone, E.A., Baumeister III, T., Sadegh, A. (2007): Marks’ standard handbook for mechanical engineers. – McGraw-Hill Education 1774p.
Brown, G.G. (1936): Molding sands of Michigan and their uses. – Michigan Department of Conservation, Geological Survey Division 35: 262p.
Bureau of Indian Standards (BIS) (1966): Is 1918: Methods of physical tests for foundry sands. – Bureau of Indian Standards 34p.
Chowdhary, D. (2008): Green sand management-role & application of carbonaceous additives and concept of total carbon in a green sand system. – In 68th World Foundry Congress 2008, WFC 2008 6p.
Ezekwe, G. (1995): Foundry is mother of all industries. – Foundry Chronicle 1(1): 8p.
Milberger, L.J., Dunlap, W.A. (1966): A gyratory compactor for molding large diameter triaxial specimens of granular materials. – Texas Transportation Institute 29p.
Nwakaire, C.M., Nwaiwu, C.M.O., Aginam, C.H. (2015): Equivalent Blows Approach to the Calibration of a Minicompactor for Laboratory Use. – IISTE Journal of Civil and Environmental Research 7(8): 63-74.
Salihu, S.A., Usman, A., Suleiman, I.Y. (2020): Effect of variation of different additives on some selected properties of silica sand mould for aluminium castings. – Journal of Engineering and Technology Research 12(1): 24-36.
Troy, E.C. (2004): Technique of Mulling Muller Modifications. – Simpson Technologies Report IL, USA 8(3): 153-157.
