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This paper looks at the measurement of both profile and roughness on metal surfaces prepared specifically to receive a coating system in order to protect it from corrosion. The difference between roughness and profile is discussed, whether one is more relevant than the other, and the merits of the different measurement methods for both parameters.
使用复制胶带对磨料喷砂清理钢板表面进行表面粗糙度 的现场测量 Measuring the surface profile of abrasive blast-cleaned steel that involves using a special tape that replicates the surface profile. Equipment and procedures.
Discussion around the basics of shop-based air powered abrasive blasting, some of the criteria which should be considered when choosing a surface preparation method and ways to reduce costs associated with this process. Technologies and Industry Best Practices are often overlooked or circumvented in the name of tradition or cost savings- but the results of these choices can be very harmful. The conversation will be centered around taking steps to maintain or increase production, while increasing departmental profits.
HISTORICAL DOCUMENT. One procedure for measuring the surface profile of abrasive blast cleaned steel. The measurement technique uses a tape that replicates the surface profile.
This AMPP standard covers the preparation of concrete surfaces before the application of protective coating or lining systems. 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.
This standard, SSPC-SP 5 (WAB)/NACE WAB-1, defines the "White Metal" level of surface cleanliness for wet abrasive methods. One of five wet abrasive (WAB) levels: (White Metal, Near-White Metal, Commercial, Industrial, Brush-Off)
The Benefits of Steel Grit Blasting and Recycling was presented at the 2017 SSPC Conference. The white paper detailed the advantages of blasting with steel grit to clean a surface, remove rust, create a surface profile, and prepare a surface for coating. As a continuation, Steel Grit Blasting Improves Productivity and Quality has been written to inform contractors the purity the steel grit holds and contains once blasted on a steel structure and recycled through a four-stage cleaning process.
This updated NACE International standard test method specifies test methods to evaluate the performance of liquid coating systems for seawater immersion services. This test method is intended for use by facility owners and coating manufacturers.The test method covers liquid exterior protective coating systems for offshore platform steel structures, piers, docks, pilings, subsea valves, and wellheads at normal seawater temperature.
Included are four test methods—including cathodic disbondment, seawater immersion resistance, aging stability, and edge coverage—used to evaluate coating systems. The test method also includes two tables; Table 1 details fingerprinting of coating materials, and Table 2 details the test panel geometry, size, substrate material, and minimum quantity.
Coating specifications for protection of steel surfaces commonly contain requirements to generate a surface profile (to anchor the coating system to the substrate), within a range (minimum and maximum depth). In the future, specifications may also invoke a requirement to achieve a minimum peak density or peak count.