The rust removal of steel flat bar is very important. The rust removal method is determined according to the actual situation, which depends on the degree of rust, the environment, and so on. The five main methods for rust removal are as follow:
1. Manual rust removal is mainly using hand hammer, shovel, knife, steel wire brush, coarse emery cloth to treat with the rusty metal surface.
2. Electric tool rust removal, which is also known as semi-mechanical rust removal, mainly using air-driven brush wheels or various types of derusting machines to treat the rusty surface.
3. Compressed-air blast or centrifugal blast rust removal, mainly by means of oil-free compressed air.
4. Chemical rust removal of steel flat bar, mainly using inorganic dilute acid solution to brush and soak the rusty metal surface.
5. Rust remover is mainly used to brush or soak the rusty metal surface with a weak acid chemical liquid and remove the rust on the metal surface through a chemical reaction.
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