Self-cleaning high-corrosion-resistance plating layer steel plate and preparation method thereof

Abstract

The invention provides a self-cleaning high-corrosion-resistance plating layer steel plate and a preparation method thereof, belonging to the technical field of a coating layer steel plate. The steel plate comprises a base plate, a first structure layer in combination with the surface of one outward side of the base plate when in use and a second structure layer in combination with the surface of one inward side of the base plate when in use. The steel plate is characterized in that the surface of the first structure layer is combined with a passivation layer, and the surface of the passivation layer is combined with a self-cleaning layer. The preparation method comprises the following steps of: selecting and cleaning a cold-roll steel plate, and drying after cleaning to obtain the base plate; coating a structure layer material on the surface of one side of the base plate to from a first structure layer, and coating the structure layer material on the surface of the other side of the base plate to from a second structure layer; passivating the surface of the first structure layer by a passivant, and drying after passivating; and coating the self-cleaning sol onto the surface of the passivation layer, and calcining and curing. The steel plate disclosed by the invention has the advantages of good corrosion resistance effect, ideal self-cleaning effect and succinct processing steps, and is capable of guaranteeing the self-cleaning and corrosion-resistant effects.

Description

technical field

[0001] The invention belongs to the technical field of coated steel plates, and in particular relates to a self-cleaning high-corrosion-resistant coated steel plate, and also relates to a preparation method thereof. Background technique

[0002] Coated steel sheets are widely used in exterior walls of buildings, standard factory buildings, garages, solar water heaters, traffic signs, vehicles ( Such as automobile mufflers) and various mechanical equipment, etc. However, the appearance and corrosion resistance of the coated steel plate used in outdoor occasions are affected by the pollution of dust and oily smoke in the atmosphere, especially when this kind of steel plate is used in high-rise buildings, it is often difficult to clean it with rainwater , and manual cleaning is not only difficult, but also difficult to guarantee safety. Therefore, the maintenance of the coated steel plate has been perplexing the industry for a long time, and there is no techni...

Images