Micro-arc oxidation (MAO) is a new kind of technologies for growth of ceramic oxide film on the surfaces of light metal. Using high voltage, a layer of dense ceramic film will be generated on the surfaces of aluminum and magnesium alloys.
Micro-arc oxidation (MAO) is a new kind of technologies for growth of ceramic
oxide film on the surfaces of light metal. Using high voltage, a layer of dense
ceramic film will be generated on the surfaces of aluminum and magnesium alloys.
Adhesion between the film and the substrate is very strong and the size is
nearly no change. The wear resistance, corrosion resistance, thermal shock
resistance and insulation resistance are greatly improved. It has a wide
application prospect in aviation, aerospace, machinery, electronics, decoration
and other fields.
A: Film thickness uniformity, in-situ growth and no changing of product
B: Simple process and no pollution
C: High surface hardness and good abrasion resistance
D: Molecular structure stability and corrosion resistant performance
E: Ceramic structure and strong heat resistance
F: High insulation performance
A: To improve wear resistance, corrosion resistance, insulation performance of light metal parts
B: To replace the hard chromium plating with environmental pollution
C: To replace the pretreatment of electrophoresis and spraying, reduce the cost and discharge of waste water and improve the anti-corrosion performance
D: To replace anodic oxidation, reduce waste water discharge, improve wear resistance and corrosion resistance ( a: no discharge of the three wastes: waste water, waste gas and waste residue during the process; b:simple process, short flow and energy saving)
MAO technology is widely used in the industries of aviation, aerospace, ordnance, machinery, automotive, transportation, petrochemical, textile, printing, range hood, electronics, medical, light industry and wear resistance and corrosion resistance treatment