Steel Pipe Pretreatment
The purpose of cleaning and rust removal is to remove dirt and oxides on the surface of the steel pipe to ensure welding quality and improve the bonding strength between the steel pipe and the fin.Common surface treatment methods include pickling, phosphating, sandblasting, etc.Cutting is to cut the steel pipe into appropriate sections according to the required length to ensure the cleanliness of the welding surface, the heat transfer performance and service life of the fin tube.
Steel Pipe Pickling
Steel pipes need to be cleaned before processing to ensure that there are no impurities such as oil, dust, etc. on the surface. After cleaning, a layer of anti-rust paint should be applied to the surface of the steel pipe to prevent rust during processing.
Steel pipe rust removal
Rust removal is an important step in the pretreatment of steel pipes. Commonly used rust removal methods include: solvent cleaning, tool rust removal, pickling, and spray (cast) rust removal.
Steel pipe cutting
Cutting is another important step in the pretreatment of steel pipes, which is usually carried out after cleaning and rust removal. The purpose of cutting is to cut the steel pipe to the required length to ensure the smooth progress of subsequent processing.
