Surface treatment requirements for carbon steel el

Carbon steel elbow is a common pipe connector, widely used in petroleum, chemical, electric power, aerospace and other industries. In order to improve the corrosion resistance, wear resistance and aesthetics of carbon steel elbows, it is usually necessary to perform surface treatment. The following are detailed requirements for surface treatment of carbon steel elbows:

1. Pickling treatment: carbon steel elbow in the production process may appear some oxides, grease and other impurities, need to be pickling. Pickling removes oxides and oils and improves surface quality.

2. Grinding treatment: The surface of the carbon steel elbow may have some dents, roughness and uneven problems, which need to be grinding treatment. Grinding can smooth the surface and improve the finish and flatness of the surface.

3. Anti-corrosion treatment: carbon steel elbows are usually used to transport various media and are susceptible to corrosion in humid and corrosive environments. In order to improve its corrosion resistance, it is often treated with galvanizing, spraying anti-corrosion paint and other methods.

4. Sandblasting treatment: There may be some oxide skin, welding slag and oxide film on the surface of carbon steel elbow,