Inorganic Zinc Coatings on Underwater Surfaces PDF Download
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Author: Daniel H. Gelfer
Publisher:
ISBN:
Category : Marine engineering
Languages : en
Pages : 24
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Book Description
Author: Daniel H. Gelfer
Publisher:
ISBN:
Category : Marine engineering
Languages : en
Pages : 24
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Book Description
Author: Daniel H. Gelfer
Publisher:
ISBN:
Category : Ships
Languages : en
Pages : 12
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Book Description
Author: J. Peter Ault
Publisher:
ISBN:
Category : Bridges, Iron and steel
Languages : en
Pages : 72
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Book Description
This report presents the results of a test program designed to investigate, in the laboratory, possible causes for failure of water-based inorganic zinc (WBIOZ) coatings. Failures observed in the field have consisted of either topcoat delamination or the appearance of "freckle rusting" in the cured WBIOZ primer. There are many hypotheses regarding the cause of these failures, but no sufficient explanation exists. Furthermore, there are no proven means to ensure that failures do not occur. The general consensus of the literature is that the failures relate to improper cure of the WBIOZ primer. This improper curing is further hypothesized to relate to environmental conditions. The project initially focused on identifying what relationship, if any, existed between environmental conditions and the observed failure modes. Since a definitive relationship did not exist, further testing was conducted to investigate the effects of substrate salt contamination, improper zinc content in the mixed coating, and the effects of rinsing the primer before topcoating. This report presents the more practical results of the study
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 37
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Book Description
The shipbuilding industry has directed much effort toward ways of limiting escalating coating costs. A major portion of coating costs may be attributed to surface preparation. During construction, steel plate is normally protected with an inorganic zinc pre-construction primer. For the underwater portion of the hull, this primer is usually removed by abrasive blasting prior to final coating of the hull. If the requirement for removing the pre-construction primer could be eliminated, there would be a significant cost savings. As a result, Avondale Shipyards acting on behalf of the Maritime Administration under the National Shipbuilding Research Program authorized the Ocean City Research Corporation to undertake a laboratory study investigating the performance of selected marine coatings when applied over inorganic zinc primers in underwater service. In general, the results of the study suggest that there are inorganic zinc pre-construction primers that can be overcoated for underwater service. The results encourage further tests to investigate the parameters affecting compatibility.
Author:
Publisher:
ISBN:
Category : Coasts
Languages : en
Pages : 622
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Book Description
Author: Coastal Engineering Research Center (U.S.)
Publisher:
ISBN:
Category : Coasts
Languages : en
Pages : 438
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Book Description
Author: Sonja T. A. Lekatompessy
Publisher: Asadel Publisher
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 51
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Book Description
The Wear Rate of Zinc Anodes on Underwater Ship Surfaces in Reducing Corrosion Rate By Sonja T. A. Lekatompessy A Comprehensive Guide to Optimizing Cathodic Protection for Maritime Vessels Corrosion poses a persistent threat to the longevity and safety of ships, silently eroding their hulls and compromising their structural integrity. In this meticulously researched book, Sonja T. A. Lekatompessy, a distinguished expert in naval architecture, delves into the critical role of zinc anodes in combating this pervasive problem. Through a detailed analysis of real-world data and case studies, Lekatompessy uncovers the intricate relationship between the wear rate of zinc anodes and the corrosion rate of ship hulls. This book offers a comprehensive exploration of: The fundamental principles of corrosion control in ships The science behind sacrificial anodes and cathodic protection Factors influencing the wear rate of zinc anodes, including current density, temperature, salinity, and water flow Methods for measuring and predicting corrosion rates Mathematical modeling of zinc anode consumption Practical insights for optimizing anode selection, placement, and maintenance Whether you are a naval architect, marine engineer, ship owner, or simply interested in the science of corrosion prevention, this book provides invaluable knowledge and practical guidance for safeguarding ships from the ravages of corrosion. Lekatompessy's expertise and clear writing style make this complex topic accessible to a wide audience, offering a valuable resource for anyone seeking to extend the lifespan and enhance the safety of maritime vessels.
Author: Joseph G. Koelbel
Publisher:
ISBN:
Category : Boatbuilding
Languages : en
Pages : 274
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Book Description
Author:
Publisher:
ISBN:
Category : Ocean thermal power plants
Languages : en
Pages : 516
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 19
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Book Description
During ship construction, steel hull plate is normally protected with an inorganic zinc pre-construction primer. For the underwater portion of the hull, conventional practice is to remove the primer by abrasive blasting before final coating of the hull. If the requirement for removing the preconstruct ion primer could be eliminated, there would be a significant cost savings. As a result, a laboratory study was undertaken to investigate the performance of selected marine coatings when applied over inorganic zinc primers in underwater service. In general, the results of the study suggest that there are inorganic zinc preconstruct ion primers that can be overcoated for underwater service. The results encourage further tests to investigate the parameters affecting compatibility.
