What coatings are brown aluminum oxide usually used for?
Brown aluminum oxide is mainly used in the following types of functional coatings. Its high hardness, wear resistance, high temperature resistance and other characteristics provide key support for coating performance:
Industrial protective coatings
Widely used in the coating of metal surfaces such as bridges, ships, and mechanical equipment. By adding brown aluminum oxide micropowder, the corrosion and wear resistance of the coating can be significantly improved, and the service life of the equipment can be extended.
Refractory coatings
Used for the inner wall protection of high-temperature industrial furnaces, such as iron-making blast furnaces and refractory brick surface coatings. The high temperature resistance (can withstand environments above 1500℃) and chemical stability of brown aluminum oxide make it the core raw material for the preparation of coke gem-based spray coatings and amorphous refractory coatings.
Wear-resistant fire-resistant coatings
As an additive used in fire-resistant and wear-resistant coatings for ground and building structures, fine-grained brown aluminum oxide micropowder can not only enhance the impact resistance of the coating, but also maintain a long-term anti-slip effect through self-sharpening, which is suitable for scenes such as parking lots and industrial floors.
Heat-resistant and anti-oxidation coatings
In the protective coatings of high-temperature equipment (such as reaction vessels and chemical pipelines), brown aluminum oxide can form a high-strength anti-oxidation layer by compounding other materials, effectively resisting high-temperature oxidation and chemical corrosion.
Casting coatings
As a component of sand coatings in the casting process, it is used for surface treatment of large steel castings and alloy castings, which can improve the molding accuracy of castings and reduce defects caused by molten metal scouring.