Hard anodizing is an advanced oxidation method that forms an oxide layer 10-100 microns thick on the aluminum alloy surface. This oxide layer has very high hardness and wear resistance and can effectively protect the aluminum alloy surface from external environmental attack. The hard anodizing process involves immersing aluminum alloy parts in an electrolyte containing sulfuric acid and an oxidizing agent, and forming an oxide layer on the surface entirely through the electrolytic reaction. Compared with conventional anodizing, hard anodizing offers a uniform oxide layer, high hardness, good wear resistance, and strong corrosion resistance. Hard anodizing is commonly used in aerospace, military products, and shipbuilding and marine fields.

Tenta Aluminum currently provides hard anodizing services to customers in rail transit, aerospace, military products, and communications equipment, delivering satisfactory service with stable, high-quality workmanship.