Hot-dip galvanizing is an anti-corrosion treatment that coats the steel surface with zinc by dipping it in molten zinc, thus preventing it from rusting. However, during the production and application process, due to the influence of various factors, the zinc layer may fall off, affecting the performance and life of the steel.

1. Surface Impurities
Before hot-dip galvanizing, the steel surface must be cleaned and treated. Oil, oxides, or other impurities on the surface can weaken the zinc layer and easily peel off. Therefore, during the production process, we must pay attention to the cleaning and treatment of the steel surface to ensure that the surface is clean and free of impurities.

2. Uneven Zinc Coating Thickness
During the hot-dip galvanizing process, the thickness of the zinc coating can be affected by the varying shapes and sizes of the steel surface, resulting in uneven thickness. If the thickness of the zinc layer is uneven, it will cause deformation during steel processing and use, resulting in the detachment of the zinc layer. Therefore, during the production process, attention should be paid to controlling the uniformity of the zinc layer to ensure that the thickness of the zinc layer is consistent.

3. Poor Steel Quality
During the hot-dip galvanizing process, poor steel quality can affect the strength of the zinc layer, increasing the risk of zinc layer peeling. Therefore, during the production and material selection process, attention should be paid to the control and selection of steel quality to ensure the good performance of the steel.

Alloy square tubes have a wide range of applications, primarily spanning the following fields:

- Construction Industry: Used for erecting steel structural frameworks, door and window frames, curtain wall supports, etc., providing stable structural support.

- Machinery Manufacturing: Preferred as supports or transmission components for mechanical equipment due to their high strength and wear resistance.

- Decoration projects: Aluminum alloy square tubes can undergo spray coating or anodizing to create decorative materials in various colors for interior and exterior finishing.

- Transportation: Components in certain vehicles and rail transit systems utilize alloy square tubes to reduce overall weight and enhance durability.

Alloy square tubes are typically manufactured from aluminum alloys, stainless steel alloys, or other metallic alloys. These alloy materials undergo specialized processing during fabrication, endowing the square tubes with the following characteristics:

- High strength: The incorporation of alloy materials enhances the square tube's tensile strength and compressive capacity, enabling it to withstand significant external forces.

- Corrosion resistance: Elements such as chromium and nickel within the alloy composition effectively resist oxidation and corrosion, extending service life.

- Lightweight: Compared to standard steel, aluminum alloy square tubes are lighter, facilitating transportation and installation.

- High ductility: Alloy square tubes are easily cut, welded, and bent, adapting to diverse processing requirements.