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Safety monitoring system for abrasive blast cleaning workers in the ship buildi ng industries has been developed in order to secure safety of the workers. The developed system is composed of three sub-systems; safety monitoring system, remote control system, and specialized communication system.
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There is a wide gulf in the industry between the capabilities of water jetting and wet abrasive blast equipment capabilities and the perception of their capabilities. The misinformation frequently leads to miscommunication between the various parties involved in projects where the equipment and associated standards are used.
Surface conditioning is the first step in building efficient corrosion protection on a part or structure. Key concerns during this step include, how to create a stronger anchor-profile and how to efficiently remove previously coated, damaged, or corroded elements from a materials surface prior to coating. The ideal solution must consider three areas of the surface conditioning process: finish quality, cleaning efficiency and total cost.
During uncertain economic times like these, barge owners look to new economics and efficiencies to continue to grow business or their bottom line. One manufacturer examined barge restoration, reworked operations and applied progressive technologies to increase restoration speed and quality all while cutting costs.
An in-depth look at alternative “green” methods of surface preparation when traditional abrasive blasting of exterior steel substrates is either impractical, costly, or there is an inherent desire to minimize environmental impact, dust generation, and contaminant release, such as solvents or lead.
This article focuses on protecting workers from exposure to inhalation and noise hazards during surface preparation work in coating operations. For easy reference, a guide to common acronyms and terms appears at the end of this article.
As a means of surface preparation for protective coatings, abrasive blasting provides proper surface roughness and increases the surface area, which are critical in achieving physical and chemical adhesion between steel surface and organic coatings. For application of high-performance coating in a new shipbuilding, the abrasive blasting cleaning is widely favored primarily because of its economic and performance benefits. The abrasive blasting, however, also requires the significant amount of labor hour, whereas its efficiency mainly depends on the blaster’s skill.
Corrosion is a universal challenge for metal structures. Metal, due to its natural strength, is a common choice for building materials yet sensitive to the environment it is placed in, requiring mitigating actions to ensure proper lifecycle. Coatings are utilized as the primary defense against corrosion; the type based on substrate material and environment.
This presentation focuses on Abrasive Blasting as it is the most widely form of surface preparation in the Protective Coating Industry. It is a brief but comprehensive presentation of the top 5 mistakes made when Abrasive Blasting and how these can be resolved to lower the total cost of a surface preparation project.
Industries such as oil and gas, marine, cleaning and protective coatings face many changes and challenges from environmental, safety and other regulatory agencies. Most of these changes have to do with containment regulations and minimizing dust in open air blast environments. With these regulations now in place, contractors are looking for alternatives to traditional dry blasting.
HISTORICAL DOCUMENT. This NACE International/SSPC joint standard practice covers the preparation of concrete surfaces before the application of protective coating or lining systems. The standard includes two updated tables, Table 1 details classes of surface preparation, and Table 2 provides minimum acceptance criteria for concrete surfaces before coatings are applied and relevant test methods. The updated Appendix (nonmandatory) includes two additional tables, Table A1 provides typical surface properties of finished concrete, and Table A2 provides an extensive list of surface preparation methods for concrete surfaces. This standard should be used by specifiers, applicators, inspectors, and others who are responsible for defining a standard degree of cleanliness, strength, profile, and dryness of prepared concrete surfaces.
Esta norma conjunta da SSPC/NACE International aborda a preparação de superfícies de concreto antes da aplicação de revestimento ou sistemas de proteção. Esta norma deve ser usada pelos especificadores, aplicadores, inspetores e outros responsáveis por definir um grau padrão de limpeza, resistência, perfil e secura de superfícies de concreto preparadas.