The quality of galvanized square tubes is affected by the selection of raw materials, production process, galvanizing process, and post-treatment.

The selection of raw materials will affect the quality. Galvanized square tubes usually use low-carbon steel or alloy steel as the base material. If the chemical composition of the steel does not meet the standard or there are defects inside it, it will affect the quality of the final product. High-quality raw materials can effectively improve the adhesion and corrosion resistance of the galvanized layer.

The production process will also directly affect the quality of galvanized square tubes. During the production process, hot rolling or cold rolling, welding method, and dimensional accuracy of the pipe need to be strictly controlled. These factors determine the strength and service life of the pipe to a certain extent.

The selection and control of the galvanizing process is also key. Hot-dip galvanizing and electro-galvanizing have their own advantages and disadvantages. Hot-dip galvanizing generally provides better corrosion resistance but has higher requirements for equipment and operation. During the galvanizing process, the temperature, time of molten zinc, and the immersion speed of the pipe will affect the uniformity and thickness of the galvanized layer.

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