دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: the pattern of minute projections from a metal surface produced by sandblasting, shot blasting, or chemical etching to enhance the adhesiveness of surface coatings.

oxide coating of a metal surface to reduce corrosion.

n: a wrapping material consisting of asbestos saturated with asphalt;one element of pipeline coatings. It is no longer commonly used because asbestos can cause respiratory illness.

n: an asphalt-base enamel applied as a coating to pipe that is to be buried. The asphalt is combined with finely ground mica, clay, soapstone, or talc and applied while hot. Combined with a subsequent wrapping, this coating protects the buried pipe from corrosion.

a coating with a high resistance to permeation of liquids/gasses.

a coating applied over a surface to prevent handling damage.

the nonvolatile portion of a coating.