Rust prevention of Yuantai Derun square tube

Rust Prevention for Yuantai Derun Square Tubes

Tianjin Yuantai Derun square tubes primarily rely on hot-dip galvanizing for rust prevention. The zinc layer effectively isolates the base tube from air, preventing rust. The zinc layer itself forms a protective film, enhancing rust resistance. To further enhance rust prevention, damaged areas of the galvanized layer can be reapplied with anti-rust paint. Alternatively, measures such as optimizing storage conditions, controlling loads, and standardizing welding procedures can be used to extend service life. Detailed analysis follows:

1. Rust Prevention Principles of Hot-Dip Galvanizing

Tianjin Yuantai Derun square tubes utilize hot-dip galvanizing, which deposits a zinc layer on the surface of the steel tube. This zinc layer plays a key role in corrosion and rust prevention:
Air Isolation: The zinc layer covers the steel tube surface, isolating it from the atmosphere and preventing direct contact with the atmosphere, which could lead to rust.
Protective Film Formation: Zinc is highly chemically active and forms a thin, dense zinc carbonate protective film in the air at room temperature, further protecting the zinc layer from further oxidation.

II. Rust Prevention Optimization Recommendations

Although hot-dip galvanized square tubes already have good rust resistance, the following measures can be taken in certain circumstances to further enhance their rust resistance:

Re-applying anti-rust paint: When the galvanized coating is damaged (e.g., due to welding or burnt coating at joints), the square tubes are exposed to the air and lose the galvanized coating’s protection. In this case, re-applying anti-rust paint to the square and rectangular tubes can enhance their rust resistance.

Optimizing Storage Conditions: During storage, choose a suitable location away from harmful gases and dust; keep the warehouse dry and the relative humidity below 70%; keep materials and storage areas clean; properly stack and cover materials, raising the bottom of the stack to enhance ventilation; and maintain the integrity of the protective coating and packaging of the materials.

III. Rust Prevention Precautions During Use

When using Tianjin Yuantai Derun square tubes, the following points should be observed to extend their service life:

Understand the load capacity: Avoid overloading the square tubes. Overloading may cause deformation or damage, shortening their service life.

Standardized Welding Operations: Avoid performing random welding on square tubes. Welding can damage the tube’s integrity, affecting its structural strength and lifespan. If welding is necessary, seek professional assistance.

Regular Inspection and Maintenance: Regularly inspect and maintain square tubes to detect and address problems such as rust.