Mg-Al-Zn-coated steel is defined as galvanized steel coated with aluminum, magnesium, or other microelements (silicon, nickel, etc.). Studies suggest that this alloy-plated steel boasts outstanding weatherproofness and integrated properties. Commonly used in automobiles, husbandry, architecture, and other industries, it applies to PV frames as a substitute for conventional hot-dip galvanized steel or GI plate.
Weathering steel is not stainless steel. Rusted for a while, the steel surface is enriched with Cu, P, Cr, Ni, and other microelements to form a compact amorphous-state rust layer securely bonded with the matrix. The stabilized rust layer can resist moisture and hazardous ions in the atmosphere to a certain extent, for avoiding further corrosion of the matrix metal.
Applies to occasions with severe corrosion. Built on research findings of Chinese and international scientific research institutions, the technology has been verified by trial and error. The technology is in extensive use in domestic large severe corrosion prevention projects, such as petroleum pipelines, bridges, and sewage treatment plants.
Using scale-type zinc-rich coating as the primer and scale-type zinc-aluminum coating (adjustable color) as the top coat or combining primer and top coat in the coating, the technology applies to the surface corrosion resistance of steel structure. It falls into double-pack coating, single-pack coating, normal temperature curing coating, medium temperature curing (160 ℃-180℃) coating, quick surface drying (15min) coating, etc.
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