1. Cleaning of straight seam steel pipes uses solvents and emulsions to clean the steel surface to remove oil, grease, dust, lubricants and similar organic matter, but cannot remove rust, scale, flux, etc. on the steel surface, and can only be used as an auxiliary means of anti-corrosion production.
2. The rust removal tools for straight seam steel pipes mainly use tools such as wire brushes to grind the steel surface, which can remove loose or raised oxide scales, rust, welding slag, etc. Manual rust removal can reach the SA2 level, and power tool rust removal can reach the SA3 level. If the steel surface is firmly attached to the iron oxide scale, the rust removal effect is not ideal and cannot meet the requirements of the depth of anchoring particles for anti-corrosion construction.
3. The pickling of straight-seam steel pipes is generally treated by chemical and electrolytic methods. Pipeline anti-corrosion can only be treated by chemical pickling, which can remove oxide scale, rust, and old coating. Sometimes it can also be used as a re-treatment after sandblasting rust removal. Although chemical cleaning can make the surface reach a certain degree of cleanliness and roughness, its anchoring particles are shallow and easily pollute the environment.

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