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Galvanic primers have been found to be effective at reducing crack formation aluminum alloys. This paper will review primers that Luna has developed and explore a variety of commercially available ones.
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Global Environmental Regulations have driven many coatings developments over the last decades. Today´s regulations around worker safety and environment protection are seen as important drivers in new product development. More recently such regulations are spreading widely, as people want to live on a planet where everyone can enjoy a better quality of life, breathe clean air, where rivers and oceans are preserved, and the impact of humans on wildlife is reduced.
VOC was one of the paint emissions accused to be an environmental hazardous material and among the main causes for SBS (Sick Building Syndrome). The term SBS was coined in the late 1970's to describe situations where building occupants experienced acute health problems. “According to WHO (World Health Organization), 4.3 million people a year die from the exposure to in-house air pollution”
The aim of this work is to identify an approach to materials selection and corrosion control that can address the specific requirements of a Carbon Capture and Storage (CCS) project. This work is largely based on the accumulated knowledge and expertise that has been published. Besides the direct guidance from this document, specific topics may require more detail that can be found in the references.
As oilfield technologies have advanced, they have made high temperature (HT) reservoirs more accessible. HTs make the application of chemical more difficult because chemical instability at HT restricts what intermediates will work in these environments and the safety and complexity of HT testing further adds to the challenge.
Erosion is a major threat to liquid hydrocarbon transmission pipeline integrity when high liquid flow ratesare combined with the presence of solid particles. However, there is currently no generally acceptedguidance document or standard by which liquid petroleum pipeline operators can define maximum allowable velocities to manage the threat of erosion in their pipelines.
Typical austenitic stainless steels like 316L (S31603) contain chromium, nickel, and, optionally, molybdenum as major alloying elements. These are required to provide their beneficial properties, which include e.g. very high corrosion resistance and high ductility and toughness, yet showing comparably low strength and hardness. General corrosion resistance is primarily achieved by the element chromium, which causes formation of a thin but dense chromium oxide layer on the surface, when the amount of chromium dissolved in the metallic matrix is larger than approximately 10.5 wt%.
Olin Epoxy has designed a unique low VOC and high solids epoxy system which offers superior performance in tank liner application. The formulation of these novel materials in high temperature and high chemical resistant ambient cure tank liner will be described.
Electroplating is a commonly used technique in a variety of industries for applying metallic coatings to a surface to enhance corrosion resistance, hardness and wear characteristics, for appearances, antigalling, conductivity, radiation shielding, or a variety of other deposit characteristics. Typical electroplating occurs when the part to be plated is submersed in a tank of plating solution with an anode and electrical current is applied between the two. Using this method, any part of the work piece which does not require plating must be physically masked off with a non-electrically conductive material such as tape in order to keep the plating material from adhering where it is not wanted.
Over the last 30 years clear coatings and sealers have gone from a secondary supporting role in the decorative concrete industry to a primary role with an established and defined market presence. This paper will discuss the history of clear coatings and sealers as they have evolved to meet the rapidly changing demands of the decorative concrete industry.
The paper written in 2019 concluded the following; Whilst we may think that all blast pots are the same, these tests show that not to be the case. The design of the pipework, remote control valves and media valves all contribute to the efficiency of the pot. The ability to precisely control the amount of grit being introduced into the airstream gives the operator much more control over grit usage and therefore overall efficiency and hence cost.
The formation of mineral scales is one of the most problematic threats to the oil and gas operations which can lead to loss of production, increased lifting costs and assets deterioration.1 Mineral scales can precipitate at any locations within an oil and gas production system and create blockage in perforations, production tubulars, pumps, and surface equipment. The formation of scale deposits can be attributed to the mixing of incompatible waters from different production zones or physical and chemical condition changes associated with produced water transporting from reservoir to wellhead and further to processing facilities.