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Development of Portable Garnet Blasting Unit for New Shipbuilding

Development of Portable Garnet Blasting Unit for New Shipbuilding
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In this study, a new portable garnet blasting unit targets for weld joints in W.B.T. was developed. The field data clearly indicated that the potable garnet blasting method can be a valuable tool for small damaged area and weld seam in confined area with increase in the blasting productivity by 20%. In order to predict and optimize the pressure drop and air consumption in air blasting system, semi-empirical equations have been developed

Product Number: 41208-426-SG
Author: B. H. Lee, H. J. Bae, J. J. Baek, C. S. Park, C. S. Lee, S. K. Lee, K. K. Baek, J. C. Kim, P. S. Kim,S. K. Hwang
Publication Date: 2008
Industry: Coatings
$0.00
$20.00
$20.00

Proper choice and combination of surface preparation and coating material determine the fate of the coated film especially under corrosive and sea water immersion environments. For new shipbuilding, the application of blasting surface treatment, which provides better coating performance, is practically implausible for the weld seams in Water Ballast tank (W.B.T.) due to difficulties in those confined spaces, as well as due to secondary contamination or damage of adjacent coatings. The pressing needs for most shipyards are to prepare the proper countermeasure and develop the alternative surface preparation technologies, which can improve the productivity of surface treatment process without compromising coating’s performance. In this study, a new portable garnet blasting unit targets for weld joints in W.B.T. was developed. The field data clearly indicated that the potable garnet blasting method can be a valuable tool for small damaged area and weld seam in confined area with increase in the blasting productivity by 20%. In order to predict and optimize the pressure drop and air consumption in air blasting system, semi-empirical equations have been developed.

Proper choice and combination of surface preparation and coating material determine the fate of the coated film especially under corrosive and sea water immersion environments. For new shipbuilding, the application of blasting surface treatment, which provides better coating performance, is practically implausible for the weld seams in Water Ballast tank (W.B.T.) due to difficulties in those confined spaces, as well as due to secondary contamination or damage of adjacent coatings. The pressing needs for most shipyards are to prepare the proper countermeasure and develop the alternative surface preparation technologies, which can improve the productivity of surface treatment process without compromising coating’s performance. In this study, a new portable garnet blasting unit targets for weld joints in W.B.T. was developed. The field data clearly indicated that the potable garnet blasting method can be a valuable tool for small damaged area and weld seam in confined area with increase in the blasting productivity by 20%. In order to predict and optimize the pressure drop and air consumption in air blasting system, semi-empirical equations have been developed.

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