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dc.contributor.author Dawa, T
dc.contributor.author Lhamo, T
dc.contributor.author De Silva, GIP
dc.contributor.editor Abeygunawardane, AAGA
dc.date.accessioned 2022-03-14T04:53:41Z
dc.date.available 2022-03-14T04:53:41Z
dc.date.issued 2020-02
dc.identifier.citation Dawa, T., Lhamo, T., & De Silva, G.I.P (2020). A study on reducing casting defects of sand casted water pumps [Abstract]. In A.A.G.A. Abeygunawardane (Ed.), Towards smart society through innovative materials (p. 13). Department of Materials Science and Engineering, University of Moratuwa. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/17329
dc.description.abstract Casting is one of the useful processes in producing products from utensils to machinery components. However, major disadvantage of this process is accompanying of casting defects, which bring great loss to the industry. Casting defects occur due to various reasons which are hard to control under the industrial environment. Many researchers have conducted experiments to find the best combination of process parameters which causes minimum casting defects. In such efforts, casting defects has been considerably reduced (up to 6%) by varying the moulding sand properties. Jinasena(Pvt) Ltd is one of the oldest pump manufacturers in Sri Lanka, however, currently they are suffering from high rate of sand-casting defects of 12% which leads to water leakage. This research focuses on analysis of these casting defects quantitatively and qualitatively, determining the causes, and suggesting effective solutions. It was found that shrinkage and blowholes were two critical defects leading to water leakage of water pump casing. Generally, it is well known that molding sand properties, metal pouring temperature, design of gating system and chemical composition of the raw material are vital factors that lead to the formation of casting defects. The influence of these major factors on formation of shrinkage and blowholes was studied in this work. The experimental results showed that improper design of gating system and deviation of the moulding sand properties dominantly affect the shrinkage and blowhole defects. en_US
dc.language.iso en en_US
dc.publisher Department of Materials Science and Engineering en_US
dc.subject Water pump casing en_US
dc.subject Casting defects en_US
dc.subject Sand mold properties en_US
dc.subject Pouring temperature and gating system design en_US
dc.title A study on reducing casting defects of sand casted water pumps en_US
dc.type Conference-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Materials Science and Engineering en_US
dc.identifier.year 2020 en_US
dc.identifier.conference Materials Engineering Symposium on Innovations for Industry 2020 en_US
dc.identifier.place Katubedda en_US
dc.identifier.pgnos p. 13 en_US
dc.identifier.proceeding Towards smart society through innovative materials en_US
dc.identifier.email tdawa504@gmail.com en_US
dc.identifier.email indikagip@uom.lk en_US


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