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By establishing a holistic program that incorporates workforce training, the nation's first baccalaureate degree in Corrosion Engineering, and world-class research in corrosion and materials performance; The University of Akron (UA) is establishing a program that will create a pipeline of critical resources that will ensure that future investments in equipment and infrastructure revitalization are designed and implemented in a manner that minimizes the impact of corrosion and thus reduces the life-cycle cost to sustain those assets.
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Styrenated Unsaturated Polyester & Vinyl Ester coatings are accepted for use in chemical immersion tank linings. The primary advantage is the increased chemical resistance to harsh commodities and fast turnaround time compared to epoxy coatings. However, styrene is becoming heavily regulated due to its safety and health concerns.
Coating performance and longevity is highly dependent on the quality of substrate surface preparation. The effect of profile height, profile type (e.g., type of tool used to perform the prep, angularity of profile, etc.), extent of cleanliness, and amount of chloride contamination on coating performance were all studied to determine the correlation between these factors in an attempt to identify the primary factor in coating failure due to improper surface preparation.
Hot-dip galvanizing is one of the most economical, maintenance-free corrosion protection systems available. Like any other manufacturing process, hot-dip galvanized steel requires an inspection of the finished product to ensure compliance with applicable specifications. In this presentation, we will discuss the inspection process completed at galvanizing facilities prior to final shipment.
The World Health Organization (WHO) has reported a 20-40% increased risk of certain types of cancer, lung cancer in particular, for those who come into regular contact with, or work with paint. This paper will give a highlight on the challenges that are facing the adoption of green paints in a variety of applications and the current status for that including paint formulations, supply chain, and community education.
Aerial robotics is an emerging technology for coatings and non-destructive testing (NDT). Performing coating inspection measurements, such as dry film thickness (DFT), using aerial robotic systems improves occupational safety and reduces injuries and deaths attributed to falls. This is done by allowing measurements to be taken with the worker safely on the ground. As the industry advances towards adopting drones/aerial robots as tools for inspection practices, it is critical to evaluate the associated performance and limitations
Abrasive material forms a major component for surface preparation in coating applications. Since blasting method developed in 1890s, abrasive materials and its application methods also significantly improved to enhance blasting efficiency. In general, steel grit and shot ball are being used predominantly as metallic abrasives. Garnet and coal slag are used as non-metallic abrasives. Each abrasive is selected andapplied in accordance with the work location and substrate material of structures to be coated. In this study, we have evaluated a new artificial non-metallic abrasive (ferrochrome slag) which is a by-product from ferrochrome production process for stainless steel. This evaluation also included the checking of surface cleanliness performance and coating quality based on international test methods and field trials. For verifying the cleanliness quality, various tests were conducted as per international standards (ISO 8501-8503). Sea water immersion test (ISO 2812-2) and cyclic test (ISO 12944-9) were carried out to checkcoating performance after blasting. The field test results indicates that all inspection and quality criteria of surface preparation were met as per international standards. Furthermore, coating performance test results also showed this abrasive does not have any adverse effect on coating properties.
Vapor/wet blasting is proving to be an attractive method for surface preparation of steel, concrete, wood and other substrates. By using just enough media and water to suppress dust and achieve the desired production rates, Vapor Abrasive® blasting avoids the dusty side effects of dry blasting and the messy runoff generated by wet blasting. To achieve optimal results in Vapor Abrasive® blasting, the system must be properly matched for the job at hand.
Few things in life improve quality, decrease costs and reduce the Environment impact. With the proper technology, using steel grit to prepare steel structures for coating can accomplish this.