With the progress of technology, people's requirements for HVAC construction quality have increased accordingly, Ventilation pipe construction The requirements for cleanliness and saving of equipment and materials are also gradually improved; Ventilation duct Common air duct materials for construction mainly include galvanized stainless steel air duct, stainless steel air duct and composite stainless steel air duct. Let's briefly understand:

Stainless steel air duct has good quality and strong applicability, but its price is high. At present, the stainless steel air duct widely available in the market is galvanized sheet. Galvanized sheet stainless steel air duct is basically the characteristic of stainless steel air duct, but its price is only two thirds or even lower than that of stainless steel air duct.

Stainless steel air duct is mainly coated with zinc on the iron sheet of air duct to protect the iron sheet. The protective and decorative properties of zinc coating can be significantly improved after passivation treatment, dyeing or coating with light protecting agent.

Composite stainless steel air ducts are generally used in places where the external environment is relatively common and the requirements for air ducts are not too high. As the iron sheet is prone to chemical reaction in various environments, corrosion and rust will occur. However, zinc hardly changes in dry air. When the ventilation pipeline is constructed in humid air, the zinc surface will generate a dense basic zinc carbonate film.

Stainless steel air duct is mainly coated with zinc on the iron sheet of air duct to protect the iron sheet. The protective and decorative properties of zinc coating can be significantly improved after passivation treatment, dyeing or coating with light protecting agent.

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