Yuantai Derun galvanized square tube deacidification
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- Issue Time
- Sep 12,2025
Summary
Yuantai Derun uses advanced pickling and rust removal equipment to remove rust from square tubes
The deacidification process of Yuantai Derun (Tianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd.) galvanized square tubes usually refers to the pickling and rust removal of the square tubes before galvanizing to ensure that the zinc coating can firmly adhere to the surface of the square tubes. The following is a detailed explanation of the deacidification process of Yuantai Derun galvanized square tubes:
1. The Importance of Pickling and Rust Removal
Before galvanizing, square tube surfaces may be contaminated with impurities such as oxides, grease, and dust, which can affect the adhesion and uniformity of the galvanized layer. Therefore, pickling and rust removal can remove these impurities, leaving the surface clean and active, thereby improving the quality and adhesion of the galvanized layer.
2. Pickling and Rust Removal Equipment
Yuantai Derun may use advanced pickling and rust removal equipment for square tube rust removal. For example, a pre-galvanizing pickling and rust removal system for rectangular tubes includes a pickling tank, a rectangular tube (here, the square tube), an acid chamber, a cover, and an acid-resistant pump. The system uses an acid-resistant pump to pump acid from the acid chamber into the pickling tank, where it immerses and sprays the square tube, removing oxides and rust from its surface.
3. Pickling and Rust Removal Process
Pretreatment: Before pickling, the square tube requires pretreatment, such as removing surface impurities such as grease and dust, to ensure effective pickling.
Pickling: Place the pre-treated square tube in the pickling tank and expose it to the acid solution by immersion or spraying. The choice and concentration of the acid solution should be determined based on the material and degree of rust on the square tube.
Neutralization: After pickling, the square tube needs to be neutralized to remove any residual acid and prevent further corrosion.
Cleaning and Drying: Finally, the square tube is cleaned and dried to remove any surface neutralizer and moisture, preparing it for the subsequent galvanizing process.
IV. Precautions
Safety Procedures: During the pickling and rust removal process, strictly follow safety procedures and wear protective equipment to prevent acid splashing on the skin or eyes.
Environmental Requirements: Wastewater and exhaust gases generated during the pickling and rust removal process must comply with environmental requirements and be properly handled or discharged.
Quality Control: After pickling and rust removal, the square tube must undergo rigorous quality inspection to ensure a clean surface free of rust and impurities, ensuring that the galvanized layer meets quality requirements.
In summary, the deacidification process for Yuantai Derun galvanized square tubes is a crucial step. By employing advanced pickling and rust removal equipment and processes, we ensure a clean and active surface, thereby improving the quality and adhesion of the galvanized layer. At the same time, safety regulations and environmental protection requirements must be strictly adhered to during operation to ensure safe and environmentally friendly production.