What are the cleaning steps of steel pipe?

1. Cleaning of steel pipe
Use solvent and emulsion to clean the surface of wear-resistant pipe, wear-resistant ceramic pipe, ceramic pipe and ceramic composite pipe to remove oil, grease, dust, lubricant and similar organic matters, but it can not remove rust, oxide skin and solder on the steel surface, so it is only used as an auxiliary means in the anti-corrosion production.

2. Rust removal of steel pipe tools
It mainly uses steel wire brush and other tools to polish the steel surface, which can remove loose or raised oxide skin, rust, welding slag, etc. The derusting of hand tools can reach SA2 level, and that of power tools can reach SA3 level. If the steel surface adheres to solid oxide scale, the derusting effect of tools is not ideal, and the depth of anchor pattern required by anti-corrosion construction cannot be reached.

3. Pickling of steel pipe
Generally, acid pickling is carried out by chemical and electrolytic methods. Only chemical acid pickling is used for anti-corrosion of wear-resistant pipe, wear-resistant ceramic pipe, ceramic pipe and ceramic composite pipe, which can remove oxide skin, rust and old coating. Sometimes it can be used as the reprocessing after sand blasting. Although chemical cleaning can make the surface reach a certain degree of cleanliness and roughness, its anchor pattern is shallow and easy to pollute the environment.