Elbow Rust Prevention Guide

Affected by factors such as different construction conditions, elbows need to take appropriate anti-rust measures to extend their service life. Let’s take a look at how to prevent elbows from rusting.

The first step is to polish the surface of the steel with a wire brush. Adding these factors to pipe bending can remove loose or warped scale, rust and welds. Slag etc. The rust removal of hand tools can reach Sa2 level, and the power tools can reach Sa3 level. If there is a strong oxide scale attached to the surface of the steel, it cannot be considered that the rust removal effect is good. Carry out deep spraying and rust removal on anchor cables that cannot meet the requirements of anti-corrosion construction. Driven by a high-power motor, the spray blade is rotated at high speed to advance steel sand, steel shot, wire segments, minerals and other abrasives to the outside of the elbow pipe under the action of centrifugal force. surface. Not only does blasting completely remove rust, oxides and dirt;

Chemical and electrolytic methods are commonly used for pickling treatments. Chemical pickling is only used for elbow corrosion protection. It removes scale, rust and old coatings. Sometimes it can also be used as reprocessing after sand blasting and rust removal. Chemical cleaning can achieve the necessary cleanliness and roughness of the appearance, but its anchor lines are shallow and easy to contaminate the environment.

First, use a steel brush or other tools to polish the appearance of the steel to remove loose or tilted scale, rust, welding slag, etc. The rust removal of hand tools can reach Sa2 level, and the power tools can reach Sa3 level. If solid iron oxide scale adheres to the surface of the steel, the rust removal effect will not be considered and the anchor cable depth required for anti-corrosion construction will not be reached.

USI Steel is professional manufacturer of pipe elbow in China, if you want to get more details, please check here: Elbow