The operational principle of steel-faced magnesium composite duct mainly relies on its unique material properties and structural design.
The steel-faced magnesium alloy composite duct utilizes a refractory and insulating layer, combining three major properties: fire resistance, heat resistance, and insulation, making it a novel refractory insulation material. This material not only meets the fire integrity and insulation requirements of building smoke and exhaust ducts but also boasts characteristics such as high connection strength and easy installation. The internal and external protective layers of the duct are made of high-corrosion-resistant metal sheets or anti-corrosion aluminum foil, with a service life of over 30 years. Additionally, the duct connection profiles use specialized angle steel flanges, further enhancing the stability and durability of the connections.
The steel surface magnesium composite duct material is a laminated plate made by cold rolling, hot rolling, and other processes of steel base material combined with a magnesium-based composite material that boasts excellent high-temperature wear and corrosion resistance. Its surface is coated with a layer of glass fiber reinforced epoxy infiltrant resin that provides insulation and corrosion protection, applied via high-temperature spraying technology, followed by a coating of high-temperature wear-resistant magnesium铝合金. This material not only offers superior strength and wear resistance but also exceptional corrosion and insulation properties, ensuring stable operation and extended service life of the ducts under various environmental conditions.
In summary, the steel-faced magnesium composite duct achieves efficient fire prevention, heat insulation, and corrosion resistance through its internal and external protective layers made of fire-resistant insulation, high-corrosion-resistant metal plates, or corrosion-resistant aluminum foil, as well as the connection method of special angle steel flanges. This ensures the safety and reliability of ventilation and smoke exhaust engineering.
