Utilization of industrial wastes of Turkey as abrasive in surface preparation technologies

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2005

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Ataman, Nihat

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Surface preparation is the key factor in determining the success of a protective coating system and its ultimate objective is to create proper adhesion of a coating over an underlying substrate. Abrasive blast cleaning involves mechanical cleaning by the continuous impact of abrasive particles at high velocities on to the substrate in a jet stream of compressed air. Industries that use abrasive blasting include the shipbuilding industry, automotive industry, and other industries that involve surface preparation and painting. Materials from different origins can be used as a blasting media including coal slag, smelter slag, mineral abrasives, metallic abrasives, and synthetic abrasives. Purpose of this thesis is to investigate the usability of industrial wastes (coal slag, smelter slags, etc.) of Turkey as abrasives in surface preparation technologies. Four different slag samples of three sources, namely coal furnace slag sample from Çayırhan thermal power plant, ferrochrome slag sample from Eti Krom A.Ş., granulated blast furnace and converter slag sample from Ereğli Iron and Steel Works were studied within the scope of this thesis work. The samples were prepared by crushing and screening. The chemical composition and physical characteristics of the samples were determined. All the samples were tested in industrial scale. Test results showed that the converter slag meet all the specifications for abrasives and it can be used in blast cleaning operations. However, coal furnace slag, granulated blast furnace slag and ferrochrome slag are not suitable to be used as abrasive in surface preparation technologies.

Subject Keywords

Abrasive.

URI

http://etd.lib.metu.edu.tr/upload/12606911/index.pdf
https://hdl.handle.net/11511/15546

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

N. Ataman, “Utilization of industrial wastes of Turkey as abrasive in surface preparation technologies,” M.S. - Master of Science, Middle East Technical University, 2005.