Standard for cleaning steps of seamless steel pipes

Release time：2023-12-06    Click：42

Standard for cleaning steps of seamless steel pipes

1. Cleaning of seamless steel pipes

Using solvents and emulsions to clean the surface of wear-resistant pipes, wear-resistant ceramic pipes, ceramic pipes, and ceramic composite pipes, in order to remove oil, grease, dust, lubricants, and similar organic substances. However, it cannot remove rust, oxide skin, welding flux, etc. on the surface of steel, so it is only used as an auxiliary means in anti-corrosion production.

2. Tool rust removal for seamless steel pipes

Mainly using tools such as wire brushes to polish the surface of steel, it can remove loose or raised oxide skin, rust, welding slag, etc. Manual tools can achieve Sa2 level rust removal, while power tools can achieve Sa3 level rust removal. If the steel surface is firmly adhered with oxide scale, the rust removal effect of the tools is not ideal, and the anchor depth required for anti-corrosion construction cannot be achieved

3. Pickling of seamless steel pipes

Generally, two methods, chemical and electrolytic, are used for acid pickling treatment. For wear-resistant pipes, wear-resistant ceramic pipes, ceramic pipes, and ceramic composite pipes, only chemical acid pickling is used for anti-corrosion, which can remove oxide scale, rust, and old coatings. Sometimes, it can be used as a pre-treatment after sandblasting and rust removal. Although chemical cleaning can achieve a certain level of cleanliness and roughness on the surface, its anchor lines are shallow and can easily cause environmental pollution.